CN113731612B

CN113731612B - Movable crushing screening and sorting system

Info

Publication number: CN113731612B
Application number: CN202111095073.XA
Authority: CN
Inventors: 刘振兴; 范成洲; 胡昊; 殷坤; 廖洪波; 陈忠凯; 阮绪行; 李世国; 李田林; 武祺钢
Original assignee: 63653 Troops of PLA
Current assignee: 63653 Troops of PLA
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2023-08-08
Anticipated expiration: 2041-09-17
Also published as: CN113731612A

Abstract

The application discloses portable broken screening and sorting system belongs to the material crushing and sorting field, can solve current broken screening and sorting equipment and can only fix the equipment and settle in a certain fixed workplace, leads to work efficiency low, waste time and energy, the higher problem of cost. The system comprises a crushing and screening device, a sorting device and a control device; the crushing and screening equipment comprises a first low flat trailer, a screening device, a crushing device, a collecting hopper and a first folding conveyor belt device; the sorting equipment comprises a second low flat trailer, a measuring conveyor belt, a feeder, a plastic scintillator detection device, a NaI detection device, a material distributing device and a second folding conveyor belt device. The movable crushing screening and sorting system can well realize crushing screening and sorting of materials, and is convenient to use, time-saving and labor-saving and low in cost.

Description

Movable crushing screening and sorting system

Technical Field

The application relates to the technical field of material crushing screening and sorting, in particular to a movable crushing screening and sorting system.

Background

With the continuous development of technology, environmental protection is also increasingly emphasized. At present, the radioactive pollution material sorting device can automatically, efficiently, continuously and reliably screen and sort a large amount of radioactive pollution mixed materials which simultaneously exist non-pollution and radioactive element pollution solid materials in situ so as to meet the requirement of minimizing wastes and achieve the purposes of reducing the transportation and disposal costs of the pollution materials. However, the existing sorting device can only be assembled and arranged at the current working place in a fixed manner, when mixed raw materials at another working place need to be sorted, the mixed raw materials are transported to the place where the sorting device is located, or the sorting device is disassembled and transported to the next working place for assembly and fixed arrangement again, so that the device is inconvenient, time and labor are wasted, and the cost is increased.

Meanwhile, most of radioactive pollution mixed materials are required to be crushed and screened and then are input into the separation equipment for separation due to the limitation of the separation equipment on the particle size of the materials input into the separation equipment. But is not limited to. The existing crushing and screening equipment is mainly fixed or semi-fixed. The two modes are generally to convey the production equipment to a construction site, and assemble, fix and place the production equipment according to requirements. However, in the actual working process, as the radioactive pollution mixed materials to be crushed and screened come from different places, the mixed materials are carried back and forth by the vehicle, so that the working efficiency is extremely low, and the carrying process itself can cause the pollution of the environment where the transportation route is located. The crushing and screening equipment is transported to different working places for assembly and fixation, the foundation frame and each unit part of the crushing and screening equipment are required to be removed from the previous working place and then transported to the next working place for heavy assembly and fixation, so that the crushing and screening equipment is inconvenient, time-consuming and labor-consuming, and the cost is increased.

In a word, the equipment that is used for radioactive contamination material crushing screening and sorting at present, because it can only fixed equipment be arranged in a certain fixed job site, lead to work efficiency low, waste time and energy, the cost is higher.

Disclosure of Invention

The embodiment of the application can solve the problems that the existing crushing screening and sorting equipment can only be fixedly assembled and arranged at a certain fixed workplace, so that the working efficiency is low, time and labor are wasted and the cost is high by providing the mobile crushing screening and sorting system.

The embodiment of the invention provides a movable crushing screening and sorting system which is characterized by comprising crushing screening equipment, sorting equipment and control equipment; the crushing and screening equipment comprises a first low flat trailer, a screening device, a crushing device, a collecting hopper and a first folding conveyor belt device; the screening device and the crushing device are arranged on the first low flat trailer, and a screen discharging outlet at the end part of the screening device and a discharging outlet of the crushing device are communicated with a top opening of the collecting hopper; the first folding conveyor belt device is arranged on the first low flat trailer, and the input end of the first folding conveyor belt device is positioned below the bottom opening of the collecting hopper; the sorting equipment comprises a second low flat trailer, a measuring conveyor belt, a feeder, a plastic scintillator detection device, a NaI detection device, a material distributing device and a second folding conveyor belt device; the measuring conveyor belt is horizontally arranged on the second low flat trailer; the feeder is arranged above the measuring conveyor belt, and a material receiving opening of the feeder is communicated with the output end of the first folding conveyor belt device; the measuring conveyor belt is provided with the plastic scintillator detection device and the NaI detection device respectively along the self material conveying direction and at the upper part of the measuring conveyor belt; the material distributing device is arranged above the input end of the folding conveyor belt device of the second folding conveyor belt device, and the feeding port of the material distributing device is positioned below the conveying tail end of the measuring conveyor belt; the two folding conveyor belt devices are arranged on the second low flat trailer and are respectively positioned below the first discharging area and the second discharging area of the distributing device; the control equipment receives and processes the material radioactivity measurement results detected by the plastic scintillator detection device and the NaI detection device, and controls the material distributing device to separate the materials conveyed by the measurement conveyor belt.

One or more technical solutions provided in the embodiments of the present invention at least have the following technical effects or advantages:

according to the mobile crushing screening and sorting system provided by the embodiment of the invention, the crushing screening equipment and the sorting equipment are arranged on the low flat trailer, and after the low flat trailer is connected with the main vehicle, the crushing screening equipment and the sorting equipment can be transported to each working place quickly under the drive of the main vehicle, the mixed raw materials are not required to be transported to the position of the crushing screening and sorting equipment, the crushing screening and sorting equipment is not required to be removed from the previous working place and then transported to the next working place for reassembling and fixing, so that the mobile crushing screening and sorting system not only can realize crushing screening and sorting of materials well, but also is convenient to use, time-saving and labor-saving and low in cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a mobile crushing, screening and sorting system according to an embodiment of the present disclosure;

fig. 2 is a schematic structural view of a crushing and screening apparatus according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of an aerial crane device according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a sorting apparatus according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a sorting apparatus according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram III of a sorting apparatus according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a sorting apparatus according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a thickness adjusting apparatus according to an embodiment of the present disclosure;

FIG. 9 is a schematic diagram of a plastic scintillator detection apparatus according to an embodiment of the present disclosure;

fig. 10 is a schematic structural diagram of a NaI detection device provided in an embodiment of the present application;

FIG. 11 is a schematic diagram of a first folding conveyor belt device according to an embodiment of the present disclosure;

fig. 12 is a schematic structural diagram of a first folding conveyor belt device according to an embodiment of the present disclosure;

fig. 13 is a schematic structural diagram III of a first folding conveyor belt device according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of a first low trailer according to an embodiment of the present disclosure;

Fig. 15 is a schematic structural view of a supporting mechanism according to an embodiment of the present disclosure;

fig. 16 is a schematic structural view of a detachable support mechanism according to an embodiment of the present disclosure;

fig. 17 is a schematic structural diagram of a second low trailer according to an embodiment of the present disclosure;

fig. 18 is a second schematic structural diagram of a second low trailer according to an embodiment of the present disclosure;

fig. 19 is a schematic structural diagram of a material distributing device according to an embodiment of the present application;

fig. 20 is a schematic structural diagram of a material distributing device according to an embodiment of the present application;

fig. 21 is a schematic structural diagram of a decontamination robot according to an embodiment of the present disclosure;

fig. 22 is a schematic structural diagram of a decontamination robot according to an embodiment of the present disclosure;

fig. 23 is a schematic structural diagram of a command vehicle according to an embodiment of the present application;

fig. 24 is a schematic diagram of a second structure of a command vehicle according to an embodiment of the present application.

Icon: 1-crushing and screening equipment; 11-a first low trailer; 111-a trailer body; 1111-plate; 1112-travelling mechanism; 112-a support mechanism; 1121-support legs; 11211-a connecting segment; 11212-a support section; 11213-fourth telescoping structure; 11214—chassis; 1122-a third telescoping structure; 1123—fixed hinge point bolts; 1124-fixing base; 1125—a first hinge seat; 1126-a second hinge seat; 1127-a third hinge mount; 113-telescoping legs; 114-a detachable support mechanism; 1141-lifting legs; 11411-a stationary barrel; 11412-lifting legs; 1142-a disc; 1143-a card pad; 1144-reinforcing ribs; 12-a screening device; 121-a first feed hopper; 122-a screen box; 123-screen feed outlet; 124-screen reject outlet; 125-vibration motor; 13-a crushing device; 131-a second feed hopper; 132-a first motor; 133-crusher; 14-collecting hopper; 15-a first folding conveyor belt arrangement; 151-a first transfer section; 152-a second transfer section; 153-a third transfer section; 154-first telescoping structure; 155-a push-pull mechanism; 156-a second telescoping structure; 157-a protective cover; 1571-a first cover; 1572-a second cover; 1573-a third cap; 158-a movable cover; 1581-framework; 159-base; 1510-a top cover; 1520-guide piece; 1530-first slider; an alpha-first included angle; beta-second included angle; 16-telescoping conveyor belt; 17-a first support frame; 18-a damping spring; 1 a-a screen storage rack; 19-an aerial crane device; 191-slide rails; 192-pulley block; 193-connecting rod; 194-a first stepper motor; 195-a second stepper motor; 1 b-a second support frame; 2-sorting equipment; 21-a second low trailer; 212-a container; 2121-side plates; 2122-top plate; 2123-front plate; 2124-rear plate; 2125-side edges; 213-an opening and closing mechanism; 214-a cover plate mechanism; 2141—a cover plate; 2142-a fifth telescoping structure; 215-closing plate; 216-a first ladder; 217-rotating steps; 2171 to sixth telescopic structure; 2172-ladder; 218-a fall prevention mechanism; 2181-gate frame; 21811-vertical bars; 2182-seventh telescopic structure; 219-lifting lugs; 22-a third support frame; 23-measuring conveyor belt; 24-feeder; 25-a leakage preventing device; 251-sloping plate; 252-fourth rack; 26-a plastic scintillator detection device; 261-a second motor; 262-a second bracket; 263-supporting plate; 264-plastic scintillators; 265-fixing the column; 27-a thickness adjustment device; 271-a first scaffold; 2711-upper top plate; 27111-lightening holes; 2712-riser; 272-a baffle; 2721-a fixed plate; 2722-a flap; 273-lifting mechanism; 2731-nut; 2732-screw; 2733-a third motor; 274-a guide mechanism; 2741-a first guide post; 2742-a second slider; 28-a material distributing device; 281-a distributing hopper; 2811-a first space; 2812-a second space; 2813-third space; 2814-a first discharge zone; 2815-a second discharge zone; 282-first drive mechanism; 2821-cylinders; 2822-connectors; 283-a first dividing plate; 284-a second dividing plate; 285-a material blocking cover; 286-a transfer mechanism; 287-a material distributing mechanism; 2871-separator; 2872-rotating shaft; 288-fixing seat; 29-a second folding conveyor belt arrangement; 210-NaI detection device; 2101-fourth motors; 2102-second connector; 2103-NaI detector; 2104-third rack; 2105-second guide post; 2106—a third slider; 2107-a second fixing plate; 2 a-a seal cap; 2 b-a speed sensor; 2 c-a vibrator; 2 d-ranging sensor; 2 e-a third feed hopper; 3-on-board vehicle; 31-a decontamination robot; 311-water tank; 312-chassis; 313-a work arm; 3131-a first segment; 3132-a second segment; 3133-eighth telescoping structure; 314-a spraying mechanism; 3141-a hose; 3142-spray head; 315-rotating disk; 316-camera; 317-antennas; 318-hanging rings; 319-mount; 4-commanding the vehicle; 41-a box body; 42-an electric power supply area; 421-power generation device; 43-working area; 431-operating system; 432-job seat; 44-rest area; 441-rest seats; 45-driving area; 451—driver's position; 46-an electric lifting rod; 47-a second ladder; 48-antennas; 49-a filter pressurizing device; 5-the host vehicle.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the embodiments of the present invention and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the embodiments of the present invention will be understood by those of ordinary skill in the art according to specific circumstances.

Referring to fig. 1, the mobile crushing, screening and sorting system provided by the embodiment of the invention comprises a crushing, screening device 1, a sorting device 2 and a control device. The crushing and screening plant 1 comprises a first low bed trailer 11, a screening device 12, a crushing device 13, a collecting hopper 14 and a first folding conveyor device 15. The screening device 12 and the crushing device 13 are arranged on the first low flat trailer 11, and a screen discharging outlet 124 at the end part of the screening device 12 and a discharging outlet of the crushing device 13 are communicated with a top opening of the collecting hopper 14. A first folding conveyor means 15 is provided on the first low bed trailer 11 with its input end below the bottom opening of the collection hopper 14. Whereby the material screened by the screening device 12 or crushed material of the crushing device 13 is fed to the input of the first folding conveyor device 15 and from its output to the sorting device 2. The sorting apparatus 2 comprises a second low bed trailer 21, a measuring conveyor belt 23, a feeder 24, a plastic scintillator detection device 26, a NaI detection device 210, a sorting device 28 and a second folding conveyor belt device 29. The measuring conveyor belt 23 is horizontally provided on the second low bed trailer 21. The feeder 24 is arranged above the measuring conveyor 23 with its receiving opening communicating with the output end of the first folding conveyor means 15. The measuring conveyor 23 is provided with a plastic scintillator detecting device 26 and a NaI detecting device 210 in its upper part in the direction of its own material conveyance. The separating device 28 is arranged above the input end of the second folding conveyor device 29, the feed opening of which is located below the conveying end of the measuring conveyor 23. The two second folding conveyor belt devices 29 are arranged on the second low flat trailer 21, and the two second folding conveyor belt devices 29 are respectively positioned below the first discharging area 2814 and the second discharging area 2815 of the distributing device 28. The control device receives and processes the material radioactivity measurements detected by the plastic scintillator detection device 26 and the NaI detection device 210, and controls the material separation device 28 to separate the material conveyed by the measurement conveyor belt 23. Because crushing screening equipment 1 and sorting equipment 2 that this application embodiment provided all set up on low flat trailer, after low flat trailer is connected with main car 5, can transport crushing screening equipment 1 and sorting equipment 2 to each job site fast under the drive of main car 5, need not transport mixed raw materials to crushing screening and the equipment place of sorting, also need not demolish crushing screening and the equipment of sorting from last job site, then transport to the fixed settling of next job site reassembling, thereby the crushing screening and the sorting system of this application not only can realize the crushing screening and the sorting of material well, moreover convenient to use, labour saving and time saving, the cost is lower.

As shown in fig. 2, in the crushing and screening device 1 provided by the embodiment of the present invention, the screening device 12 and the crushing device 13 are respectively mounted on the first low flat trailer 11 through the first supporting frame 17 and the second supporting frame 1b, and when the first low flat trailer 11 is connected with the main vehicle 5, the crushing and screening device 1 can be moved to any workplace. Specifically, a first feed inlet is formed in the top of the screening device 12, so that materials with relatively small particles can enter the screening device 12 through the first feed inlet to be screened, a screen feed outlet 123 and a screen discharge outlet 124 are formed in the end of the screening device 12, and then materials with larger particle sizes in the materials are discharged through the telescopic conveyor 16 after passing through the screen feed outlet 123, and the screened materials are sent into the collecting hopper 14 through the screen discharge outlet 124 to be collected.

The crushing device 13 is located on one side of the screen feed outlet 123 of the screening device 12. A second feed opening is provided at the top of the crushing device 13 in order to facilitate the crushing of relatively large-grained material entering the crushing device 13 through the second feed opening. The bottom of the crushing device 13 is provided with a discharge hole, crushed materials are sent into the collecting hopper 14 through the discharge hole to be collected, the input end of the first folding conveyor device 15 is arranged below the collecting hopper 14, and the materials in the collecting hopper 14 are conveyed to the sorting equipment 2 in the next procedure through the first folding conveyor device 15. The equipment of this application can satisfy screening function, can realize broken function again, still can transfer the material after screening, the breakage together to in the next process, and is extremely convenient, swift.

In addition, the telescopic conveyor 16 in this embodiment is telescopically disposed on the first low bed trailer 11, specifically, the telescopic conveyor 16 includes a hydraulically driven telescopic structure, and the telescopic conveyor 16 can extend out of the bed 1111 of the first low bed trailer 11 after being extended, and the on-site collection device receives the delivered oversize material. As a structure of the telescopic conveyor 16, embodiments thereof may be: be provided with semi-closed framework on the dull and stereotyped 1111 that is located sieve material loading export 123 below, flexible conveyer belt 16 slidable sets up in the framework, and the upper surface and the sieve material loading export 123 intercommunication of framework, the one end that is close to dull and stereotyped 1111 or carriage edge of framework set up to the opening, and the flexible conveyer belt 16 of being convenient for stretches out, and the one end inside that is close to dull and stereotyped 1111 or carriage edge of framework sets up the pneumatic cylinder, promotes the slip of flexible conveyer belt 16 in the framework through the pneumatic cylinder, realizes stretching out and shrink of flexible conveyer belt 16. In addition, the telescopic conveyor belt 16 in the present embodiment may also be a telescopic conveyor belt 16 in the prior art, which is not required in the present embodiment.

As shown in connection with fig. 2, the screening device 12 further comprises a first feed hopper 121, a screen box 122, a screen mesh and a vibrating motor 125; the top of the screen box 122 is provided with a first feed inlet, and a first feed hopper 121 is arranged on the first feed inlet; the screen box 122 is of a closed structure, and a screen feeding outlet 123 and a screen discharging outlet 124 are arranged at one end part of the screen box 122; the screen mesh is arranged inside the screen box 122 and divides the empty part inside the screen box 122 into an upper screen material layer and a lower screen material layer, the upper screen material layer is communicated with the upper screen material outlet 123, and the lower screen material layer is communicated with the lower screen material outlet 124; a vibration motor 125 is mounted to the bottom of the screen box 122 for vibrating the material in the screen box 122.

Specifically, the screen box 122 is mounted on the first low trailer 11 through the first support frame 17, and damping treatment is performed at the joint of the first support frame 17 and the screen box 122 through the damping spring 18, when in use, the material to be screened is poured into and enters the screen box 122 from the first feed hopper 121, and since the screen is provided in the screen box 122, and the screen separates the screen feed outlet 123 from the screen discharge outlet 124, the screen feed and the screen discharge are separated by the excitation of the vibrating motor 125, and the screen feed is discharged from the screen feed outlet 123, and the screen discharge is discharged from the screen discharge outlet 124.

In addition, in this embodiment, the screening device 12 adopts a linear vibrating screen, the linear vibrating screen adopts a round or square screen mesh, the screen mesh size is 20mm, and in this embodiment, the treatment capacity of the vibrating screen is not less than 30t/h, and the screening efficiency of the 20mm screen mesh is not less than 90%.

As shown in fig. 1, the crushing device 13 comprises a second feed hopper 131, a first motor 132 and a crusher 133; the crusher 133 top sets up the second feed inlet, and second feeder hopper 131 installs on the second feed inlet, and the discharge gate is seted up to the crusher 133 bottom. The first motor 132 is mounted on the second support frame 1b and is electrically connected to the crusher 133.

In this embodiment, the first motor 132 and the crusher 133 are both mounted on the flat plate 1111 of the first low trailer 11 through the second support frame 1b, and the crusher 133 and the first motor 132 are electrically connected, when in use, the material with larger particles enters the crusher 133 from the second feed hopper 131, the crusher 133 is powered by the first motor 132, the crusher 133 crushes the large-particle material, and then the crushed material is discharged into the collecting hopper 14 through the discharge port. The collecting hopper 14 is mainly used for collecting materials from a discharge hole of the crusher 133 and materials discharged from the screen discharging outlet 124, the collecting hopper 14 is set to be a special-shaped part, and is in butt joint with the first folding conveyor device 15 while collecting materials, so that the materials are transferred to an input end of the first folding conveyor device 15 under the condition of completely receiving the incoming materials. Further, the crushing device 13, the screening device 12, the telescopic conveyor 16, and the first folding conveyor device 15 in the above-described embodiment are arranged in a balanced manner on the flat panel 1111, preventing serious side-to-side or front-to-rear unbalanced loading of the first low trailer 11.

Wherein the raw materials of the material are mixed materials of granite, quartz rock, siltstone, limestone and the like, the maximum granularity is less than or equal to 120mm, the 95% grain size is less than or equal to 20mm, the minimum discharging granularity of the crusher 133 is less than or equal to 20mm, and the processing capacity is more than or equal to 30t/h.

In the above embodiment, the first feeding hopper 121 is disposed at the top of the screening device 12, and the second feeding hopper 131 is disposed at the top of the crusher 133, so as to reduce the influence of dust generated in the operation process on the environment, and the material directly enters the crusher 133 and the screen box 122 through the feeding hopper, so that dust is not generated.

Optionally, the crushing and screening device 1 further comprises a hoisting device 19, and as shown in fig. 2 and 3, the hoisting device 19 comprises a sliding rail 191, a pulley block 192, a connecting rod 193, a first stepping motor 194, a second stepping motor 195 and a hanging mechanism; the two slide rails 191 are arranged in parallel, and one end of each slide rail is fixed with the first low flat trailer 11 and is positioned above the screening device 12 and the crushing device 13; the connecting rod 193 is connected with the two slide rails 191, pulley blocks 192 are arranged at two ends of the connecting rod 193, and pulleys of the pulley blocks 192 are embedded in the slide rails 191; an output shaft of the first stepping motor 194 is connected with the pulley block 192 and drives the pulley block 192 to slide along the sliding rail 191; the connecting rod 193 is provided with a chute along the length direction, and the hanging mechanism is movably arranged in the chute and used for replacing the screen; parallel to the chute, a rack is arranged above the connecting rod 193, a second stepping motor 195 is fixed on the hanging mechanism, a gear is arranged on an output shaft of the second stepping motor 195, the gear is meshed with the rack, and the output shaft of the second stepping motor 195 rotates to drive the hanging mechanism to slide in the chute.

In this embodiment, one end of two parallel sliding rails 191 is fixed with the first low flat trailer 11, and two sliding rails 191 are connected through a connecting rod 193, so that the connecting rod 193 and the sliding rails 191 are vertically arranged, wherein the connecting rod 193 is also arranged in parallel, sliding grooves are formed in the connecting rod 193 along the length direction, the notches of the two sliding grooves are opposite, pulley blocks 192 are arranged at two end parts of the connecting rod 193, pulleys of the pulley blocks 192 are embedded in the sliding rails 191, the pulley blocks 192 are driven to move in the sliding rails 191 through a first stepping motor 194, two ends of a hanging mechanism are arranged in the sliding grooves, and the second stepping motor 195 drives the hanging mechanism to slide on the connecting rod 193.

Specifically, the hanging mechanism comprises a fixed block, the two ends of the fixed block are provided with sliding blocks, the sliding blocks are embedded in the sliding grooves, the second stepping motor 195 is arranged at the top of the fixed block, a gear is arranged on an output shaft of the second stepping motor 195, the gear is meshed with a rack which is arranged on the connecting rod 193 and is parallel to the sliding grooves and is positioned above the sliding grooves, the output shaft of the second stepping motor 195 rotates to drive the gear meshed with the rack to move along the length direction of the rack, so that the second stepping motor 195 moves along the length direction of the sliding grooves, and the hanging mechanism slides in the sliding grooves.

Wherein, set up the aerial crane device 19 of this embodiment at the top of removing screening crushing equipment, hanging mechanism can be used to the change of the interior screen cloth of the screen box 122 of screening plant 12, adopts aerial crane device 19 to change, and the manual work is supplementary, has saved the human labor greatly, has also improved factor of safety.

As a further optimization of the embodiment, the hanging mechanism is arranged to be a retractable structure and comprises a fixed block, a third stepping motor, a lifting hook and a steel wire rope; the fixed block is movably arranged in the chute, and the third stepping motor is arranged on the fixed block; the output shaft of the third stepping motor is provided with a wire wheel, the wire rope is wound on the wire wheel, and the output shaft of the third stepping motor rotates to realize the scaling of the wire rope; the lifting hook is fixed at the free end of the steel wire rope.

In combination with the above embodiment, the hanging mechanism is set to be a retractable structure, specifically, sliding blocks are arranged at two symmetrical end parts of a fixed block of the hanging mechanism, the sliding blocks are embedded in the sliding grooves, a third stepping motor is fixed on the fixed block, a wire wheel is arranged on an output shaft of the third stepping motor, a wire rope is wound on the wire wheel, the enough length of the rope is ensured, a lifting hook is arranged at the free end of the rope, when the lifting hook is used, the third stepping motor is started, the output shaft of the third stepping motor rotates, the wire wheel rotates along with the rotation, and the winding wheel can be wound and unwound by the rope, so that lifting of the lifting hook is realized. Wherein, in order to guarantee the stability of structure, whole aerial lifting device 19 adopts steel construction to build.

Referring to fig. 1, the crushing and screening device 1 further comprises a screen storage rack 1a. The screen storage rack 1a is provided on the first low bed trailer 11 and is located on one side of the screening device 12, and the screen storage rack 1a is used for fixing a spare screen.

In this embodiment, the screen storage rack 1a is disposed on the first low trailer 11, for fixing the spare screen, because the size range of the material particles is relatively large, and the used particles have strict requirements, and the materials with different particles need to be collected, so the screening device 12 needs to screen the materials with different particles, and therefore, a screen (or a screen plate) and a small-sized aerial crane device 19 with screen sizes of 1mm, 2mm, 5mm and 10mm are needed to be separately provided, so that the screen can be conveniently replaced.

The crushing and screening device 1 provided in this embodiment is provided with an imaging device and a pickup device at appropriate positions thereof, so that the condition of the operation device can be monitored in real time, and the operation parameters of the device are collected and then sent to a control sub-device of the command vehicle 4. The crushing device 13, the screening device 12, the first folding conveyor device 15 and other structures are arranged on the first low flat trailer 11 in a balanced manner, so that serious unbalanced load on the left and right sides or front and rear sides of the vehicle is prevented.

Referring to fig. 4 to 7, in the sorting apparatus 2 according to the embodiment of the present invention, a measuring conveyor belt 23 is horizontally disposed on a second low-bed trailer 21, a feeder 24 is disposed above the measuring conveyor belt 23, and a receiving port thereof is connected to an output end of the first folding conveyor belt device 15. The measuring conveyor belt 23 is provided with a plastic scintillator detecting device 26 and a NaI detecting device 210 at the upper part thereof along the self material conveying direction so as to detect radioactive elements in the material. Two second folding conveyor belt devices 29 are arranged on the second low flat trailer 21 at the tail end of the material conveying direction of the measuring conveyor belt 23, a material distributing device 28 is arranged above the second folding conveyor belt devices 29, wherein a material inlet of the material distributing device 28 is aligned with the tail end of the material conveying direction of the measuring conveyor belt 23, a material distributing outlet of the material distributing device 28 is aligned with the two second folding conveyor belt devices 29 respectively, material radioactivity measuring results detected by the plastic scintillator detecting device 26 and the NaI detecting device 210 are received and processed through a control device, the material distributing device 28 is controlled to sort the materials conveyed by the measuring conveyor belt 23, and the materials after being distributed are conveyed to the next procedure through the two second folding conveyor belt devices 29 respectively. By adopting the sorting equipment 2, the problems that the sorting equipment 2 in the prior art cannot realize full automation during sorting of radioactive materials, manual residence on site is needed for auxiliary operation, and the physical health of site workers is affected are effectively solved, and automatic sorting and transportation of radioactive materials are realized. When the second low bed trailer 21 is connected to the main vehicle 5, the sorting apparatus can be moved to any workplace.

The belt length of the measuring conveyor belt 23 is determined according to the space required for the system layout, and the belt adopts a flat belt with a skirt to prevent the bulk material from falling from both sides of the measuring conveyor belt 23.

The equipment has two working modes when in operation: the intermittent sorting machine is mainly used for high-precision sorting operation. The measuring conveyor 23 stops after feeding the material one by one under the radiation detector, after the measurement is completed, the distributing device 28 is put in place in advance according to the instruction of the control device, and then the measuring conveyor 23 is restarted to feed the material into the distributing device 28 and guide the material onto the corresponding second folding conveyor device 29.

The continuous sorting machine is mainly used for high-speed sorting operation. The whole flow of conveying, measuring and distributing is continuous, and the devices are required to have good cooperativity and real-time performance. In the mode, the separation efficiency of the equipment for low-medium radioactive materials is not less than 30t/h, and the separation precision is less than or equal to 15kg. When the equipment works continuously, namely the whole flow of conveying, measuring and distributing is continuous, the devices are required to have better cooperativity and instantaneity, and the equipment is generally set to be in a second working mode by default. The time that the material to be measured reaches the outlet of the material distributing device 28 from the position of the detector is accurately calibrated, and the material distributing device 28 can reach the designated outlet quickly at proper time through calculation and control of a vehicle-mounted embedded control system (PLC) through control equipment, so that false distribution (namely, partial overstocked material is separated onto an exemptable conveyor belt or the exemptable material is separated onto an overstocked soil conveyor belt) is avoided.

As shown in fig. 7, a third feeding hopper 2e is provided at the inlet of the feeder 24, and a metal plate is provided in the inlet of the feeder 24, so that the sand can be turned and decelerated after entering, and the influence of the sand on the service life of the conveyor belt is reduced by directly falling the sand from the top of the carriage onto the measuring conveyor belt 23. A vibrator 2c is arranged on the outer wall of the feeder 24 to make blanking uniform.

The system work flow is as follows: the incoming material from the output end of the first folding conveyor means 15 enters the feeder 24 from the third feeding hopper 2 e; the feeder 24 uniformly and quantitatively feeds the materials onto the measuring conveyor belt 23; the radioactive detector measures the radionuclide species and activity level of the contaminated material passing through the measuring conveyor belt 23; the control device compares the radioactive measurement result with a preset threshold value to judge whether the radioactive measurement result exceeds the standard, and controls the material distributing device 28 to act at a proper moment according to the judging result so as to guide the materials entering the material distributing device 28 from the measurement conveyor belt 23 onto different second folding conveyor belt devices 29 (the exceeding standard materials are guided onto one second folding conveyor belt device 29 and output, and the avoiding materials are guided onto the other second folding conveyor belt device 29 and output), thereby completing automatic measurement and sorting of the partial materials.

As shown in fig. 5 and 6, the sorting apparatus 2 further comprises a thickness adjustment device 27. A thickness adjustment device 27 is provided on the measuring conveyor belt 23 and is located between the feeder 24 and the plastic scintillator detection device 26. The thickness adjusting device 27 includes a first bracket 271, a shutter 272, and a lifting mechanism 273. The first bracket 271 has a door shape, and risers 2712 on both sides of the first bracket 271 are fixed to both sides of the measuring conveyor belt 23. As shown in fig. 5, the riser 2712 and the measuring conveyor belt 23 may be fixed by bolts, specifically, the front ends of the bolts pass through the riser 2712 from the side of the riser 2712 and then are disposed in screw holes on the side of the measuring conveyor belt 23, so that the fixation of the riser 2712 and one side of the measuring conveyor belt 23 may be achieved.

The baffle 272 includes a fixed plate 2721 and a baffle 2722. The fixing plate 2721 is parallel to the upper top plate 2711 of the first bracket 271. The top surface of the blocking piece 2722 is connected with the fixing plate 2721, and the surface is perpendicular to the conveying direction of the measuring conveyor belt 23. One end of the lifting mechanism 273 is fixed to the upper top plate 2711, and the other end is fixed to the fixed plate 2721, so that the lifting mechanism 273 drives the baffle 272 to lift. Specifically, the lifting mechanism 273 can drive the shutter 272 to continuously lift. The distance between the lower end surface of the baffle 2722 of the baffle 272 and the upper surface of the measuring conveyor belt 23 is arbitrarily adjustable within the range of 1 mm-100 mm, and the control error is less than or equal to + -1 mm.

In practical applications, the measuring conveyor belt 23 can convey bulk materials, granular materials, powder materials, etc., and at present, when conveying smaller granular materials such as sand to the next equipment for subsequent processing, it is expected that the materials can be output according to a preset thickness, so that the granular materials such as sand are ensured to be conveyed to the tail end of the conveyor belt uniformly and quantitatively without piling or falling, but the conventional conveyor belt equipment cannot realize the output according to the preset thickness when conveying the smaller granular materials such as sand. According to the thickness adjusting device 27 provided by the embodiment of the invention, the working state of the lifting mechanism 273 is controlled to control the lifting height of the lifting mechanism 273 to drive the baffle 272, so that the distance between the end surface of the baffle 2722, which is close to the measuring conveyor belt 23, and the upper surface of the measuring conveyor belt 23 is adjusted, and the distance is the preset thickness of the granular material which can pass through the lower end of the baffle 272. Through thickness adjusting device 27 of this application, can realize according to predetermineeing thickness output when granular material such as conveyer belt conveying sand to guarantee that granular material such as sand evenly quantitatively conveys the end to the conveyer belt, do not pile up or drop.

Referring to fig. 8, the lifting mechanism 273 includes a nut 2731, a screw 2732 and a third motor 2733. The third motor 2733 is fixed to the upper top plate 2711, the screw 2732 is connected to an output end of the third motor 2733, and a nut 2731 is sleeved on the screw 2732. The fixing plate 2721 is provided with a fixing hole, and the outer wall of the nut 2731 is clamped in the fixing hole, so that the fixing plate 2721 is fixed with the nut 2731, and further the baffle 272 is fixed with the nut 2731. At this time, an escape opening is provided at the upper side of the middle portion of the blocking piece 2722 to escape from one end of the screw 2732 extending out of the fixing plate 2721. The lifting mechanism 273 provided by the embodiment of the application is simple in structure and easy to realize.

The working process of the lifting mechanism 273 provided in the embodiment of the present application is: when the third motor 2733 is controlled to be turned on, the output end of the third motor 2733 drives the screw 2732 to rotate forward or reversely, and the nut 2731 is sleeved on the screw 2732, so that the nut 2731 moves upwards or downwards relative to the screw 2732, and the nut 2731 is fixed with the fixing plate 2721 of the baffle 272, so that the nut 2731 can drive the baffle 272 to move upwards or downwards. The lifting height of the baffle 272 can be known by calculating the number of rotations of the third motor 2733 and converting the number of rotations into the lifting height of the driving nut 2731. In practical application, the third motor 2733 is a servo motor, and the screw 2732 is driven to rotate by the servo motor, so that the continuous adjustment of the distance between the end surface of the baffle 2722, which is close to the measuring conveyor belt 23 of the conveyor belt device, and the upper surface of the measuring conveyor belt 23 can be realized. The servo motor can make the control speed and position accuracy very accurate, the motor rotor speed is controlled by the input signal and can react quickly, and in the automatic control system, the servo motor is used as an executing element and has the characteristics of small electromechanical time constant, high linearity and the like, and can convert the received electric signal into the angular displacement or angular velocity output on the motor shaft, so that the control of the lifting height of the baffle 272 driven by the lifting mechanism 273 is quicker and more accurate.

Of course, the lifting mechanism 273 may further include a hydraulic cylinder, where a cylinder body of the hydraulic cylinder is fixed to the upper top plate 2711 of the first bracket 271, and a telescopic rod is fixed to the fixed plate 2721 of the barrier 272, and when the hydraulic rod stretches, the barrier 272 can be driven to lift.

In practice, the thickness adjustment device 27 further comprises a guiding mechanism 274. Both sides of the barrier 272 are provided with a guide mechanism 274, so that the lifting of the barrier 272 can be more stable, and the lifting path can not deviate along the extending direction of the guide mechanism 274.

Referring to fig. 8, the guide mechanism 274 includes a first guide post 2741 and a second slider 2742. Both ends of the fixed plate 2721 of the baffle 272 are provided with a bayonet. The outer wall of the second slider 2742 is clamped at the bayonet, sleeved on the first guide post 2741, and capable of sliding along the extending direction of the first guide post 2741. The riser 2712 is provided with the mounting groove, and first guiding post 2741's both ends are fixed with the top surface and the bottom surface of mounting groove respectively, and then set up guiding mechanism 274 in the mounting groove, not only can realize guiding mechanism 274's function, compact structure, space utilization are higher moreover, can also reduce the weight of whole thickness adjustment device 27. Because the outer wall card of second slider 2742 locates the bayonet socket on the fixed plate 2721 to fixed second slider 2742 and fixed plate 2721, when baffle 272 goes up and down, second slider 2742 slides along the extending direction of first guide post 2741 from top to bottom, thereby makes fixed plate 2721 slide along the extending direction of first guide post 2741 from top to bottom, and then makes whole baffle 272 slide along the extending direction of first guide post 2741 from top to bottom, and the guiding mechanism 274 that this application embodiment provided can realize making the lift of baffle 272 more stable to make baffle 272 go up and down along the extending direction of first guide post 2741. In addition, in practice, since the baffle 272 needs to block the granular materials such as sand, the baffle 272 is subjected to long-term impact force, and thus the baffle 272 is deformed, the distance between the baffle 2722 and the conveyor belt is inaccurate over time, and since the two ends of the first guide post 2741 are respectively fixed with the top surface and the bottom surface of the mounting groove, the two ends of the baffle 272 can be fixed, and further the baffle 272 can bear long-term impact force of the granular materials, so that the baffle 272 is not easy to deform.

Of course, the guiding mechanism 274 may also include a guide rail, where two opposite sides of the two risers 2712 are respectively provided with a vertically extending guide rail, two sides of the fixing plate 2721 are respectively provided with a notch, and the notch is matched with the shape of the guide rail, so that the guide rail can be clamped in the notch, and the fixing plate 2721 can slide along the extending direction of the guide rail.

Referring to fig. 8, a groove is formed on a side of the riser 2712, which is close to the measuring conveyor belt 23, and a side of the measuring conveyor belt 23 can be clamped in the groove, so as to facilitate the fixing of the first bracket 271, and in addition, when a side of the measuring conveyor belt 23 is clamped in the groove, an upper surface of the measuring conveyor belt 23 can provide an upward supporting force for a surface of the groove, which is in contact with the upper surface, so that the first bracket 271 can be prevented from sliding downward after being fixed, and the problem of inaccurate distance between the baffle 2722 and the measuring conveyor belt 23 is caused. In addition, as shown in fig. 8, when a recess is provided on both side surfaces of the vertical plate 2712, the front end of the bolt is inserted from the plane parallel to the measuring conveyor belt 23 of the recess, then inserted out of the surface of the recess in contact with the upper surface of the measuring conveyor belt 23, and then inserted into the screw hole in the measuring conveyor belt 23, thereby fixing the first bracket 271.

With continued reference to FIG. 8, on the upper top plate 2711, a weight-reducing hole 27111 is provided on both sides of the lifting mechanism 273, so that the weight of the first bracket 271, and thus the weight of the entire thickness adjusting device 27, can be reduced, and the weight of the entire first bracket 271 is balanced by providing a weight-reducing hole 27111 on both sides of the lifting mechanism 273.

As shown in fig. 8, the lifting mechanism 273 is disposed in the middle of the upper top plate 2711, so that when the lifting mechanism 273 provides a pulling force to the baffle 272, the pulling force applied to the whole baffle 272 is more balanced, and the lifting movement of the baffle 272 is more stable.

As shown in fig. 9, the plastic scintillator detection apparatus 26 includes a second motor 261, a second bracket 262, a support plate 263, a plastic scintillator 264, and a fixed post 265. The second support 262 is in the form of a door, and the vertical plates at the two sides of the second support 262 are fixed with the two sides of the measuring conveyor belt 23. The two sides of the vertical plate of the second bracket 262 are symmetrically provided with fixing posts 265, two supporting plates 263 are arranged, two ends of each supporting plate 263 are respectively sleeved on the two opposite fixing posts 265 on the vertical plates at two sides, and the two supporting plates 263 are connected through a U-shaped beam. The second motor 261 is disposed on a top plate of the second bracket 262, and an output shaft of the second motor 261 passes through the top plate of the second bracket 262 and is connected with the "U" beam. A plastic scintillator 264 is disposed on the support plate 263.

The fixing mode of the plastic scintillator detection device 26 on the measurement conveyor belt 23 is consistent with the fixing mode of the thickness adjustment device 27 on the measurement conveyor belt 23, and when the device is specifically used, the output shaft of the second motor 261 is controlled to rotate to drive the U-shaped beam to realize up-and-down fine adjustment (the mode of threaded connection of the output shaft and the U-shaped beam), so as to drive the two support plates 263 to slide up and down on the fixing column 265, and the adjustment of up-and-down displacement of the plastic scintillator 264 is realized.

The plastic scintillator detecting device 26 in this embodiment is disposed on a side of the measuring conveyor belt 23 through which the material is conveyed, and on a side of the thickness adjusting device 27 away from the feeder 24, for detecting the radionuclide radioactivity and the energy spectrum of 137Cs and 241am in the soil to be measured, i.e., the material. The working environment is humidity less than 80%, and the temperature is-10 ℃ to +50 ℃; track drift + -1 track (1024 tracks); the energy resolution is less than 8 percent (662 keV), and the detection limit of 241am is less than or equal to 100Bq/kg.

As shown in fig. 10, the NaI detection device 210 includes a fourth motor 2101, a third bracket 2104, a second fixing plate 2107, and a NaI detector 2103; the third bracket 2104 is in a door shape, and the vertical plates at two sides of the third bracket 2104 are fixed with two sides of the measuring conveyor belt 23; the second fixing plate 2107 is parallel to the top plate of the third bracket 2104, the fourth motor 2101 is arranged on the top plate of the third bracket 2104, and an output shaft of the second motor 261 passes through the top plate of the third bracket 2104 and then is connected with the second fixing plate 2107; the NaI detector 2103 is attached to the bottom of the second stationary plate 2107.

In this embodiment, two NaI detecting devices 210 are disposed consecutively, and the fixing manner of the NaI detecting devices 210 on the measuring conveyor belt 23 is identical to the fixing manner of the thickness adjusting device 27 on the measuring conveyor belt 23, and the guiding manner of the second guiding post 2105 and the third sliding block 2106 is also identical to the guiding manner of the guiding mechanism 274 of the thickness adjusting device 27, where the NaI detector 2103 and the second fixing plate 2107 are connected by the second connecting member 2102, so as to ensure that the NaI detector 2103 is firmly installed. When the device is specifically used, the output shaft of the fourth motor 2101 is controlled to rotate to drive the second fixing plate 2107 to move up and down, meanwhile, the third sliding blocks 2106 arranged at two ends of the second fixing plate 2107 slide on the second guide posts 2105 to guide the second fixing plate 2107, the second fixing plate 2107 moves up and down to drive the NaI detector 2103 to realize adjustment of up and down displacement, the adjustment distance is within the range of 10 mm-30 mm, the control error is less than or equal to +/-1 mm, a leveling device can be additionally arranged to ensure that the parallelism of the bottom surface of the detector and the upper surface of a material is less than or equal to +/-1 mm.

In addition, as shown in fig. 10, the ranging sensors 2d are arranged on the top plate of the third bracket 2104 of the NaI detecting device 210, the actual thickness of the material and the actual detection distance of the detector are measured, and considering that the width and the length of the detector are far greater than the size of the ranging sensors 2d, a plurality of ranging sensors 2d (not less than 4) are arranged in the width and length directions, 6 ranging sensors are arranged in the embodiment, and the average value of the ranging sensors 2d is taken as the final measurement result, and the measurement error of the single ranging sensor 2d is less than or equal to +/-0.1 mm.

In addition, in this embodiment, an automatic weighing device is disposed below the measuring conveyor belt 23 at the positions of the NaI detecting device 210 and the plastic scintillator detecting device 26, so that the moving bulk material on the conveyor belt can be continuously and quantitatively weighed (mass flow and total mass), and the weighing measurement error is less than or equal to 5%. The starting time, the ending time and the spectrum acquisition time of the detector of the weighing device need to be synchronized (namely, the bulk materials passing through in the same time period for which the radioactivity measurement and the weighing measurement are ensured).

Referring to fig. 5-7, a plastic scintillator detector 26 is further disposed on the end of the measuring conveyor belt 23 remote from the dispensing device 28, and the plastic scintillator detector 26 is used to measure the radionuclide activity and energy spectrum of the background of the conveyor belt 23 in the environment. And a material leakage preventing device 25 is arranged on the measuring conveyor belt 23 at the same end of the plastic scintillator detecting device 26, the material leakage preventing device 25 is positioned between the plastic scintillator detecting device 26 and the feeder 24 in the section, the material leakage preventing device 25 comprises a fourth bracket 252 and an inclined plate 251, the fourth bracket 252 is in a door shape, and vertical plates at two sides of the fourth bracket 252 are fixed with two sides of the measuring conveyor belt 23. A long through hole is formed in the top plate of the fourth bracket 252, a sloping plate 251 made of hard rubber is fixed at the bottom of the top plate of the fourth bracket 252, the sloping plate 251 is inclined towards the side far away from the feeder 24, the sloping plate 251 is located below the long through hole, and the length of the sloping plate 251 is not smaller than that of the long through hole. By providing the leak-proof device 25 at the end of the measuring conveyor belt 23 far away from the distributing device 28, the material entering from the third feeding hopper 2e can be prevented from entering the reverse direction position of the belt line due to bouncing or the like, and the measuring accuracy of the plastic scintillator detecting device 26 is prevented from being affected.

In addition, a speed sensor 2b is further arranged on one side of the end part of the measuring conveyor belt 23 far away from the material distributing device 28, the measuring conveyor belt 23 is set to run at a constant speed in normal operation, the capacity of stepless adjustment or 11-gear adjustment (the minimum gear is 0m/s, the maximum gear is 1m/s, and the difference between the gears is 0.1 m/s) in the range of 0-1 m/s is provided, the speed control error is less than or equal to +/-0.005 m/s, and the speed sensor 2b is arranged on the measuring conveyor belt 23 and is mainly used for measuring the actual conveying speed of materials such as sand and the like, so that the conveying error can be accurately known, and the accurate control of the conveying time of each part of materials conveyed by the measuring conveyor belt 23 is facilitated.

In addition, since the material contains radioactive elements, in order to ensure that the radioactive elements do not pollute the environment, a sealing cover 2a is arranged on the surface of the measuring conveyor belt 23, so as to ensure that dust does not float into the air outside the working equipment in the material conveying process.

The first and second folding conveyor means 15, 29 are identical in construction and, as shown in fig. 11 and 12, each comprise a first conveyor section 151, a second conveyor section 152, a third conveyor section 153 and a first telescopic structure 154. The first transfer section 151 is provided on the first low trailer 11 or the second low trailer 21, and a transfer surface of the first transfer section 151 is parallel to the bed 1111 of the low trailer. The second conveying section 152 is connected with one end of the first conveying section 151, and the conveying surface of the second conveying section 152 forms an obtuse angle with the conveying surface of the first conveying section 151, so that the conveying surface of the second conveying section 152 extends along the obliquely upper side of the conveying surface of the first conveying section 151, and the conveying belt is lifted, so that downward conveying of high-position materials or upward conveying of low-position materials can be realized. The third conveying section 153 is hinged to an end of the second conveying section 152 facing away from the first conveying section 151. The telescopic end of the first telescopic structure 154 is connected with the third conveying section 153, and the fixed end is connected with the second conveying section 152 so as to drive the third conveying section 153 to rotate around the hinge shaft.

As shown in fig. 11, when the first telescopic structure 154 is in the fully contracted state, the third conveying section 153 is folded, and the back surface thereof is close to the back surface of the second conveying section 152, and the first folding conveyor device 15 is in the housed state. When the first telescopic structure 154 is continuously extended, the third conveying section 153 rotates around the hinge shaft in the clockwise direction, and the third conveying section 153 is unfolded, according to practical requirements, the extension length of the first telescopic structure 154 can be controlled, so that the included angle between the back surface of the third conveying section 153 and the back surface of the second conveying section 152 can be controlled, that is, the unfolding degree of the third conveying section 153 is controlled, as shown in fig. 12, when the conveying surface of the third conveying section 153 is overlapped with the conveying surface of the second conveying section 152 after the third conveying section 153 is unfolded.

In practical application, a set of first telescopic structures 154 may be provided, where a telescopic end of the first telescopic structure 154 is connected to a back surface of the third conveying section 153, and a fixed end of the first telescopic structure 154 is connected to a back surface of the second conveying section 152, so that when the first telescopic structure 154 stretches, the third conveying section 153 can rotate around the hinge shaft. Of course, in order to make the first telescopic structure 154 provide more sufficient telescopic force to the third conveying section 153, two sets of first telescopic structures 154 may be provided, in order to make the telescopic force provided by the first telescopic structure 154 to the third conveying section 153 more uniform and reasonably utilize space, the first telescopic structures 154 are disposed at two sides of the second conveying section 152 and the third conveying section 153, specifically, the telescopic ends of the first sets of first telescopic structures 154 are connected with the first side wall of the third conveying section 153, the fixed ends are connected with the side wall of the second conveying section 152 at the same side as the first side wall, the telescopic ends of the second sets of first telescopic structures 154 are connected with the second side wall opposite to the first side wall of the third conveying section 153, and the fixed ends are connected with the side wall of the second conveying section 152 at the same side as the second side wall.

As shown in fig. 11 and 12, in practice, the third conveying section 153 includes a first conveying part and a second conveying part, the second conveying part is located at an end of the third conveying section 153 facing away from the second conveying section 152, and the back surfaces of the first conveying part and the second conveying part are at an obtuse angle, so that when the third conveying section 153 is unfolded, the conveyor belt device can extend farther, and the second conveying part enables a buffer section to the material when the end of the third conveying section 153 facing away from the second conveying section 152 inputs or outputs the material, so that the input or output of the material is smoother, and in addition, when the third conveying section 153 is folded, the back surface of the third conveying section 153 is more adhered to the back surface of the second conveying section 152, and the second conveying part of the third conveying section 153 is not extended perpendicularly to the supporting surface, but is tilted upward rightward as shown in fig. 11, and the height projected onto the vertical surface becomes smaller, so that the length of the second conveying section 152 can be set longer, and the length of the entire conveyor belt device is increased relatively.

According to the folding conveyor belt device provided by the embodiment of the invention, when the folding conveyor belt device is required to work, the third conveying section 153 is unfolded under the drive of the first telescopic structure 154, then materials are conveyed, and when the folding conveyor belt device is not required to work, the third conveying section 153 is folded under the drive of the first telescopic structure 154, so that storage is realized, and the auxiliary conveying of the conveyor belt device is facilitated on a working site.

With continued reference to fig. 11 and 12, the first and second folding conveyor means 15, 29 further comprise a push-pull mechanism 155. The push-pull end of the push-pull mechanism 155 is fixed to an end of the third transfer section 153 connected to the second transfer section 152 for pushing and pulling the third transfer section 153.

Wherein, a group of push-pull mechanisms 155 can be provided, and two groups of push-pull mechanisms 155 can be provided, as shown in fig. 11, which shows a schematic structure in which two groups of push-pull mechanisms 155 are provided. The push-pull ends of the two sets of push-pull mechanisms 155 are respectively fixed to both sides of the third conveying section 153, so that not only can sufficient push-pull force be provided, but also the push-pull of the third conveying section 153 can be smoother. When the third conveying section 153 is required to be folded, the first telescopic structure 154 is retracted, and the push-pull end of the push-pull mechanism 155 is pushed out, so that the rotation speed of the third conveying section 153 in the anticlockwise direction is higher, and the folding speed is higher; when the third transfer section 153 is required to be deployed, the first telescopic structure 154 is extended, and the push-pull end of the push-pull mechanism 155 is pulled back, so that the rotation speed of the third transfer section 153 in the clockwise direction is faster, and the deployment speed is faster. The push-pull mechanism 155 cooperates with the first telescoping structure 154 to enable the third transfer section 153 to collapse and expand more quickly and smoothly.

With continued reference to fig. 11, the push-pull mechanism 155 includes an electric push rod, the front end of which is fixed to the end of the third conveying section 153 connected to the second conveying section 152. The electric push rod has the advantages of low price, environmental protection, convenient control, small volume, high precision, good self-locking performance and the like.

Of course, one electric push rod may be provided, or as shown in fig. 11, two electric push rods may be provided, and the front ends of the two electric push rods are fixed to both sides of the end of the third conveying section 153 connected to the second conveying section 152, so that the push-pull force provided by the two electric push rods is more balanced. In practical application, as shown in fig. 11 and 12, the apparatus further includes a guide plate 1520 and a first slider 1530, wherein one guide plate 1520 is disposed on each of two sides of the third conveying section 153, a first slider 1530 is disposed on each of two corners of two sides of one end of the third conveying section 153 connected with the second conveying section 152, which are close to the conveying surface, one side of the guide plate 1520 is fixed to one side of the third conveying section 153, a telescopic end of the first telescopic structure 154 is connected to the other side of the guide plate 1520, two adjacent end surfaces of the guide plate 1520 are connected with each other by an arc surface, the arc surface faces a first slider 1530, and an edge of the first slider 1530 facing the guide plate 1520 is disposed as an arc surface corresponding to the arc surface of the guide plate 1520, so that the first slider 1530 can slide along the arc surface of the guide plate 1520. While the push-pull rod of the electric push rod is fixed to the first slider 1530 and the fixed end is fixed to the end surface of the guide piece 1520. Of course, the push-pull mechanism 155 may also include a hydraulic cylinder, wherein a trunnion of the hydraulic cylinder is connected to the first slider 1530, and a cylinder body is fixed to an end surface of the guide piece 1520.

As shown in fig. 11, the first telescopic structure 154 includes a hydraulic cylinder. The trunnions of the hydraulic cylinders are connected to the third transfer section 153 and the cylinder bottom is connected to the second transfer section 152. The hydraulic cylinder generally comprises a cylinder bottom (fixed end), a cylinder barrel, a piston rod, a trunnion and other parts, wherein the cylinder bottom is clamped at one end of the cylinder barrel, one end of the piston rod (telescopic end) is arranged in the cylinder barrel, the other end of the piston rod (telescopic end) is sleeved with the trunnion, and the cylinder bottom and the trunnion are used for fixing the hydraulic cylinder on other equipment. The hydraulic cylinder is a hydraulic executive component which converts hydraulic energy into mechanical energy and makes linear reciprocating motion, and has the advantages of simple structure, reliable work, light weight, small volume, convenient operation and control, no reduction gear, no transmission gap, stable motion, small motion inertia, high reaction speed and convenient installation.

Further, a hydraulic cylinder may be provided, the trunnion of which is connected to the back surface of the third transfer section 153, the cylinder bottom is connected to the back surface of the second transfer section 152, and the third transfer section 153 is rotatable about the hinge shaft when the first telescopic structure 154 is telescopic. Of course, in order to make the telescopic force provided by the hydraulic cylinder to the third transmission section 153 more sufficient, two hydraulic cylinders may be provided, and in order to make the telescopic force provided by the hydraulic cylinder to the third transmission section 153 more uniform and reasonably utilize the space, the hydraulic cylinders are provided at both sides of the second transmission section 152 and the third transmission section 153, specifically, as shown in fig. 11 to 12, the trunnion of the first hydraulic cylinder is connected with the first side wall of the third transmission section 153, the fixed end is connected with the side wall of the second transmission section 152 at the same side as the first side wall, the telescopic end of the second hydraulic cylinder is connected with the second side wall opposite to the first side wall of the third transmission section 153, and the fixed end is connected with the side wall of the second transmission section 152 at the same side as the second side wall.

Of course, the first telescopic structure 154 may further include a telescopic cylinder, where the front end of the telescopic rod of the telescopic cylinder is connected to the third conveying section 153, and the cylinder body is connected to the second conveying section 152, so that when the telescopic rod of the telescopic cylinder stretches, the third conveying section 153 can be driven to fold or unfold. The telescopic cylinder is simple in structure, light and convenient to install and maintain; the medium is air, which is not easy to burn, safe to use, and the air is inexhaustible, and has no cost, thereby reducing the cost; the exhaust treatment is simple, and the environment is not polluted; the output force and the working speed are easy to adjust, and the action speed is high; the reliability is high, and the service life is long; compressed air can be supplied in a centralized manner and conveyed in a long distance, so that the cost is further reduced, and the applicability of the telescopic cylinder can be improved.

Referring to fig. 11-13, the first 15 and second 29 folding conveyor means further comprise a second telescopic structure 156. The second transfer section 152 is hinged with the first transfer section 151, i.e. the second transfer section 152 is rotatable about a hinge axis. The telescopic end of the second telescopic structure 156 is connected with the second conveying section 152, and the fixed end is connected with the supporting surface to drive the second conveying section 152 to rotate around the hinge shaft, so that the angle of the first included angle alpha between the central axis of the second telescopic structure 156 and the bottom surface of the second conveying section 152 can be adjusted, namely the angle of the second included angle beta between the conveying surface of the second conveying section 152 and the first conveying section 151 can be adjusted, and the extension length and the extension height of the second conveying section 152 can be adjusted. Specifically, when the second telescopic structure 156 extends, the angle of the first included angle α decreases, the angle of the second included angle β also decreases, and the second conveying section 152 rotates clockwise, and at this time, when the third conveying section 153 is unfolded, the height of the entire conveyor belt device is relatively increased, so that the material with a higher height can be conveyed; when the second telescopic structure 156 is retracted, the angle of the first included angle α is increased, the angle of the second included angle β is also increased, the second conveying section 152 rotates counterclockwise, and the third conveying section 153 is unfolded, relatively speaking, the whole conveying belt device is projected onto the projection surface of the supporting surface, and the length of the conveying belt device is longer, so that the conveying belt device can convey materials at a longer distance.

In practical application, a set of second telescopic structures 156 may be provided, where the telescopic ends of the second telescopic structures 156 are connected to the back surface of the second conveying section 152, and the fixed ends are connected to the supporting surface, so that when the second telescopic structures 156 are telescopic, the second conveying section 152 can rotate around the hinge shaft. Of course, in order to make the second telescopic structure 156 provide more sufficient telescopic force to the second conveying section 152, two sets of second telescopic structures 156 may be provided, in order to make the telescopic force provided by the second telescopic structure 156 to the second conveying section 152 more uniform and reasonably utilize the space, the second telescopic structures 156 are disposed at two sides of the second conveying section 152, specifically, the telescopic ends of the first set of second telescopic structures 156 are connected with the first side wall of the second conveying section 152, the telescopic ends of the second set of second telescopic structures 156 are connected with the second side wall opposite to the first side wall of the third conveying section 153, and the fixed ends of the two sets of second telescopic structures 156 are connected with the supporting surface.

With continued reference to fig. 11-13, the second telescoping structure 156 includes a hydraulic cylinder. The trunnions of the hydraulic cylinders are connected to the second transfer section 152 and the cylinder bottom is connected to the support surface. Further, a hydraulic cylinder may be provided, the trunnion of which is connected to the back surface of the second transfer section 152, and the cylinder bottom is connected to the support surface, so that the second transfer section 152 can rotate about the hinge shaft when the second telescopic structure 156 is telescopic. Of course, in order to make the telescopic force provided by the hydraulic cylinders to the second conveying section 152 more sufficient, two hydraulic cylinders may be provided, and in order to make the telescopic force provided by the hydraulic cylinders to the third conveying section 153 more uniform and make reasonable use of space, the hydraulic cylinders are provided at both sides of the second conveying section 152, specifically, as shown in fig. 11 to 13, the trunnion of the first hydraulic cylinder is connected with the first side wall of the third conveying section 153, the telescopic end of the second group of hydraulic cylinders is connected with the second side wall opposite to the first side wall of the third conveying section 153, and the fixed ends of the two groups of hydraulic cylinders are connected with the supporting surface.

Of course, the second telescopic structure 156 may further include a telescopic cylinder, where the front end of the telescopic rod of the telescopic cylinder is connected to the second conveying section 152, and the cylinder is connected to the supporting surface, and when the telescopic rod of the telescopic cylinder stretches, the second conveying section 152 can be driven to rotate around the hinge shaft.

Referring to fig. 13, the folding conveyor apparatus further includes a protective cover 157. The conveying sides of the first conveying section 151, the second conveying section 152 and the third conveying section 153 are protected by the sleeved protective covers 157, so that materials conveyed by the conveying belt device can be protected from being polluted or damaged in real time. Specifically, the section of the protective cover 157 provided in the embodiment of the present application is a door, the protective cover 157 includes a top surface and two side surfaces that are integrally connected, and two sides of the first conveying section 151, the second conveying section 152, and the third conveying section 153 are respectively clamped between the two side surfaces of the protective cover 157. The cross section of the protective cover 157 is gate-shaped, which is convenient to manufacture and install and saves materials.

Further, as shown in fig. 13, the protection cover 157 includes a first cover 1571, a second cover 1572 and a third cover 1573 which are separately provided, and the first cover 1571 is sleeved on the upper portion of the first conveying section 151. The second cover 1572 is sleeved on the upper portion of the second conveying section 152, and an end of the second cover 1572 adjacent to the first cover 1571 is connected with a hinge shaft at the end of the second conveying section 152, so that when the second conveying section 152 rotates, the second cover 1572 can rotate along with the second conveying section and can be connected with the first cover 1571, and materials conveyed on the second conveying section 152 can be protected in real time. The third cover 1573 is sleeved on the upper portion of the third conveying section 153, and an end of the third cover 1573 adjacent to the second cover 1572 is connected with a hinge shaft at the end of the third conveying section 153, so that when the third conveying section 153 rotates, the third cover 1573 can rotate along with the third conveying section and can be connected with the second cover 1572, and materials conveyed on the third conveying section 153 can be protected in real time.

Referring to fig. 13, the first and second folding conveyor apparatuses 15 and 29 further include a movable cover 158. A movable cover 158 is arranged at the hinge joint of the second conveying section 152 and the third conveying section 153, and the movable cover 158 can always shield the gap between the second conveying section 152 and the third conveying section 153 while the third conveying section 153 rotates; and/or, the hinge joint of the first conveying section 151 and the second conveying section 152 is provided with another movable cover 158, and the movable cover 158 can always block the gap between the first conveying section 151 and the second conveying section 152 while the second conveying section 152 rotates.

In practical applications, when the second conveying section 152 rotates and rotates at different angles, it is desirable that the first cover 1571 and the second cover 1572 are always in seamless connection, so that the hinged position between the second conveying section 152 and the first conveying section 151 can be ensured, and materials are not polluted or damaged when flowing through. In order to ensure that the first cover 1571 and the second cover 1572, the second cover 1572 and the third cover 1573 are always in seamless engagement, the dimensions of the protective cover 157 must be very accurate. At the same time, when the third cover 1573 is folded, it is also desirable that its hinge be protected from dust and the like.

The folding conveyor belt provided by the embodiment of the invention further comprises a movable cover 158, wherein the movable cover 158 is arranged at the hinge joint of the second conveying section 152 and the third conveying section 153, and can always cover the gap between the second conveying section 152 and the third conveying section 153 when the third conveying section 153 rotates, namely, no matter how much the third conveying section 153 is in a folding or unfolding state, no matter how much the third conveying section 153 rotates, the movable cover 158 can always cover the gap between the second conveying section 152 and the third conveying section 153. The movable cover 158 arranged at the hinge joint of the first conveying section 151 and the second conveying section 152 can always cover the gap between the first conveying section 151 and the second conveying section 152 when the second conveying section 152 rotates, namely, no matter how much the second conveying section 152 rotates, the movable cover 158 can always cover the gap between the first conveying section 151 and the second conveying section 152. Of course, when the movable cover 158 is provided, the movable cover 158 may be provided only at the hinge of the first conveying section 151 and the second conveying section 152, the movable cover 158 may be provided only at the hinge of the second conveying section 152 and the third conveying section 153, and the movable cover 158 may be provided at the hinge of the first conveying section 151 and the second conveying section 152, and the hinge of the second conveying section 152 and the third conveying section 153, which are all provided by those skilled in the art according to actual needs.

With continued reference to fig. 13, the movable cover 158 includes a stretchable fabric and at least two skeletons 1581. Both ends of the skeleton 1581 are respectively connected with both ends of the hinge shaft one by one, the first and last skeletons 1581 are respectively fixed with the protective cover 157, for example, the first and last skeletons 1581 are respectively fixed with the third cover 1573 and the second cover 1572 at the hinge position of the third transmission section 153, the first and last skeletons 1581 are respectively fixed with the second cover 1572 and the first cover 1571 at the hinge position of the second transmission section 152. Two adjacent skeletons 1581 are connected by telescopic cloth.

The cross section of the skeleton 1581 may be arc-shaped, as shown in fig. 13, the skeleton 1581 may also include an arc-shaped piece and two flat pieces, where the end faces of the arc-shaped piece are integrally connected with one end of one flat piece respectively, and the other ends of the two flat pieces are connected with two ends of the hinge shaft respectively, so that when the movable cover 158 is unfolded or contracted, the outer peripheral surface of the movable cover 158 is a cylindrical surface, the connection is smoother, and meanwhile, due to the arrangement of the flat pieces, the surfaces of the two flat pieces of the movable cover 158 are more attached to the side faces of the protective cover 157, the installation is more convenient, and the space is also saved.

The number of skeletons 1581 can be two, three, four, etc. … …, which are not limited in this embodiment. By way of example, fig. 13 shows a schematic structural view of eight skeletons 1581 at the hinge of the first conveying section 151 and the second conveying section 152, and nine skeletons 1581 at the hinge of the second conveying section 152 and the third conveying section 153. Of course, the greater the number of skeletons 1581, the stronger the structure of the protective cover 157, which can extend its useful life.

The adjacent two frameworks 1581 are connected through the telescopic cloth, the telescopic cloth has the function of shielding the space below, and in the process of rotating the second conveying section 152 or the third conveying section 153, the telescopic cloth also plays a role in connecting the upper framework 1581 with the lower framework 1581 so that the upper framework 1581 pulls the lower framework 1581 to rotate. The arrangement of the telescopic cloth can enable the unfolding and condensing of the movable cover 158 to be more convenient and rapid, and enables the whole movable cover 158 to have a better shielding effect.

Of course, the movable cover 158 may only include a plurality of frameworks 1581, if the frameworks 1581 include an arc-shaped sheet and two planes, the end surfaces of the arc-shaped sheets where two arcs are located are integrally connected with one end of a flat sheet respectively, the other ends of the two flat sheets are connected with two ends of the hinge shaft respectively, the length of the flat sheet of each framework 1581 is gradually increased along the clockwise direction or the anticlockwise direction, a first blocking sheet extending upwards is disposed on the outer peripheral wall of one side of the arc-shaped sheet of the previous framework 1581 adjacent to the next framework 1581, a second blocking sheet extending downwards is disposed on the inner peripheral wall of one side of the arc-shaped sheet of the next framework 1581 adjacent to the previous framework 1581, and when the movable cover 158 is installed, the first blocking sheet can be blocked into the second blocking sheet, so that when the movable cover 158 is unfolded, the first blocking sheet can pull the second blocking sheet, when the movable cover 158 is unfolded smoothly, and when the movable cover 158 is condensed, the previous framework 1581 can be condensed smoothly into the inner cavity of the next framework 1581 due to the gradual increase of the length of the flat sheet.

Optionally, the protective cover 157 and the movable cover 158 are made of transparent materials, so that the running condition of the materials on the conveyor belt can be conveniently monitored.

In practice, the folding conveyor assembly also includes a base 159. The base 159 is disposed on the bed 1111 of the low trailer and the first transfer section 151 is disposed on a support surface of the base 159. Referring to fig. 11, the base 159 is a groove, and the first conveying section 151 is disposed on an inner bottom surface of the groove. When the folding driving belt device comprises the second telescopic structure 156, the first conveying section 151 and the second conveying section 152 are hinged, two ends of the hinge shaft can be respectively connected with two side walls of the groove in a rotating manner, so that the hinge shaft is more stable, and the fixed end of the second telescopic structure 156 is connected with the upper end face of the side wall of the groove. The base 159 can make the folding conveyor belt device be an independent whole, and the folding conveyor belt device can be moved to any working place by moving the base 159, so that the folding conveyor belt device is more convenient to use and wider in applicability. Of course, when the base 159 is not present, the fixed ends of the first conveying section 151 and the second telescopic structure 156 of the apparatus may be fixed to the deck of the first low flat trailer 11 or the second low flat trailer 21, and when the host vehicle 5 connected thereto is driven to a different place, the folding conveyor apparatus may be carried to a different work place.

In practical applications, as shown in fig. 13, a top cover 1510 is further disposed at an end of the third cover 1573 facing away from the second cover 1572, so as to protect the material conveyed on top of the third conveying section 153 from being contaminated or damaged. The top cover 1510 comprises a main body and an outer edge, wherein the main body is in the shape of a quadrangular prism, the bottom surface of the quadrangular prism is in the shape of a right trapezoid, the plane where the height of the right trapezoid is located is connected with one end of the third cover 1573, which is far away from the second cover 1572, and the outer edge is arranged on the end surface where the bottom edge of the right trapezoid is located.

As shown in fig. 14 and 15, the first low bed trailer 11 and the second low bed trailer 21 are identical in structure, and each includes a trailer body 111 and an even number of support mechanisms 112. As shown in fig. 1, the trailer body 111 of the first low trailer 11 includes a platform 1111 and a travelling mechanism 1112, and the platform 1111 is disposed above the travelling mechanism 1112, so that the travelling mechanism 1112 drives the platform 1111 to move. The height of the flat plate 1111 from the ground is not more than 1m, and the carrying capacity of the low trailer is not less than 1.5 times of the total load on the vehicle. When the vehicle is fully loaded, the maximum climbing capacity is not less than 30%, the maximum running speed of a flat road surface is not less than 100km/h, and the endurance mileage is not less than 500km. The traveling mechanism 1112 includes a shaft, a rim, a tire, and the like.

The even number of support mechanisms 112 are divided into two groups, and are respectively disposed at both sides of the trailer body 111. The supporting mechanisms 112 may be divided into two groups, and are respectively disposed on two sides of the trailer body 111, so that the supporting force provided by the supporting mechanisms 112 is more balanced, and the whole trailer is more stable. The number of the supporting mechanisms 112 is set by those skilled in the art according to the weight of the equipment placed on the bed 1111 and the overall shape and size of the first low trailer 11. As shown in fig. 14, which shows a schematic structural view of two support mechanisms 112, one support mechanism 112 is provided on each side of the first low trailer 11 in the X-axis direction, and the two support mechanisms 112 are located on the side of the bed 1111 of the first low trailer 11 close to the host vehicle 5.

The support mechanism 112 includes support legs 1121. The support leg 1121 includes a connecting section 11211 and a support section 11212. The central axis of the connecting section 11211 is at a right angle or an obtuse angle to the central axis of the supporting section 11212. When the central axis of the connecting section 11211 is at right angle to the central axis of the supporting section 11212, the supporting function of the supporting leg 1121 can be realized, and meanwhile, the supporting leg 1121 is convenient to manufacture. Fig. 14 and 15 show schematic structural views of the supporting mechanism 112 when the central axis of the connecting section 11211 forms an obtuse angle with the central axis of the supporting section 11212, and the supporting effect of the supporting leg 1121 is better and the supporting is more stable when the central axis of the connecting section 11211 forms an obtuse angle with the central axis of the supporting section 11212. Specifically, at this time, the direction of the supporting force provided to the flat plate 1111 by the supporting section 11212 is along the central axis direction of the supporting section 11212, and the supporting force can be decomposed into a first component force along the Z-axis direction, which can provide the flat plate 1111 with a supporting force perpendicular to the ground, and a second component force along the X-axis direction, which can counteract the vibrating force to the flat plate 1111 when the device on the flat plate 1111 vibrates, thereby making the flat plate 1111 more stable and more balanced.

The connection section 11211 is connected to the trailer body 111, and the end of the support section 11212 facing away from the connection section 11211 is intended to be supported on the ground. The support section 11212 is connected to a control device that can regulate the length of the support section 11212 to achieve leveling of the low trailer bed. The control device can regulate the length of the support section 11212, specifically, the control device can regulate the length of the support section 11212 along the axial direction to achieve leveling of the low trailer. In practical application, the supporting section 11212 can be a hydraulic supporting leg, and the hydraulic quantity of the hydraulic supporting leg is regulated and controlled through control equipment, so that the length of the supporting section 11212 is automatically regulated, and the real-time automatic leveling of the low flat trailer is realized. Of course, the supporting section 11212 may be an air pressure supporting leg, and the air pressure of the air pressure supporting leg is regulated and controlled by the control device, so that the length of the supporting section 11212 is automatically regulated, and the real-time automatic leveling of the low-level trailer is further realized.

In practical application, the low flat trailer has a strong capability of transporting ultrahigh goods and passing overhead obstacles due to low gravity center and good safety, so that the application range of the low flat trailer is extremely wide. In many work environments, a host vehicle 5 in a car for towing a trailer needs to be disconnected from the work environment, at which time the trailer needs to be disconnected from the host vehicle 5. The front section of the low flat trailer is in a gooseneck form, as shown in fig. 14, the vehicle body is shorter, the total length (length along the Y axis direction in fig. 1) of the main vehicle 5 and the trailer of the low flat trailer in the drawing is 9990mm, the total width (length along the X axis direction in fig. 1) of the main vehicle 5 and the trailer is 2470mm, the highest position (length along the Z axis direction in fig. 1) of the whole vehicle transportation state is 3780mm, the lowest position (height between the upper surface of the flat 1111 and the ground) of the flat 1111 is not more than 1m, a mechanical supporting structure cannot be installed in a conventional manner, when the main vehicle 5 is separated, the low flat trailer is carried by a relatively heavy equipment, the gravity center is easy to be unstable, the unbalance of the whole low flat trailer is caused, and the unbalance of the whole low flat trailer is further aggravated due to the phenomenon such as vibration and the like in the working process of equipment carried by the low flat trailer. The application sets up in the supporting mechanism 112 of first low flat trailer 11 both sides, can play the effect of supporting first low flat trailer 11 and make the trailer be in balanced state all the time, even produce phenomenon such as vibration at the equipment that low flat trailer born in the course of the work, low flat trailer still can keep steady state.

As shown in fig. 15, the support mechanism 112 further includes a third telescopic structure 1122. The connection section 11211 of the support leg 1121 is hinged to the trailer body 111. As shown in fig. 15, the support mechanism 112 further includes a first hinge seat 1125, the bottom of the first hinge seat 1125 is fixed on the flat plate 1111 of the trailer body 111, the connection section 11211 of the support leg 1121 is clamped on the upper portion of the first hinge seat 1125, and the hinge shaft passes through the connection section 11211 of the support leg 1121 and the upper portion of the first hinge seat 1125, so as to hinge one end of the connection section 11211 with the first hinge seat 1125.

The telescopic end of the third telescopic structure 1122 is connected to the support leg 1121, and the fixed end is connected to the trailer body 111 and to the control device. Specifically, as shown in fig. 15, the supporting mechanism 112 further includes a second hinge seat 1126, the bottom of the second hinge seat 1126 is fixed to the upper end surface of the connecting section 11211 of the supporting leg 1121, a concave recess is disposed at the upper portion of the second hinge seat 1126, the telescopic end of the third telescopic structure 1122 is clamped in the recess, and the hinge shaft passes through one side of the recess, then passes through the telescopic end of the third telescopic structure 1122, and finally passes through the other side of the recess, so as to realize the hinge of the third telescopic structure 1122 and the supporting leg 1121.

Further, the fixed end is hinged to the trailer body 111. As shown in fig. 15, the supporting mechanism 112 further includes a third hinge seat 1127, wherein the bottom of the third hinge seat 1127 is fixed on the flat plate 1111 of the trailer body 111, a concave recess is provided at the upper portion of the third hinge seat 1127, the fixed end of the third telescopic structure 1122 is clamped in the recess, and the hinge shaft passes through one side of the recess, then passes through the fixed end of the third telescopic structure 1122, and finally passes through the other side of the recess, thereby realizing the hinge of the fixed end and the trailer body 111.

The third telescopic structure 1122 is connected with the control device, so that the control device can control the working state of the third telescopic structure 1122, for example, the extension or contraction of the third telescopic structure 1122, because the connecting section 11211 of the supporting leg 1121 is hinged with the trailer body 111, the telescopic end of the third telescopic structure 1122 is connected with the supporting leg 1121, and the fixed end is connected with the trailer body 111, the third telescopic structure 1122 can drive the supporting leg 1121 to rotate, so that the supporting leg 1121 can be supported on the ground or be received above the first low flat trailer 111. Specifically, as shown in fig. 14, when two support mechanisms 112 are respectively located at two sides of the trailer body 111, when the third telescopic structure 1122 is extended to the longest, two support legs 1121 are supported on the ground as shown in fig. 1, when the third telescopic structure 1122 is contracted, the left support leg 1121 rotates clockwise, the right support leg 1121 rotates counterclockwise until the third telescopic structure 1122 is contracted to the bottom, and the two support legs 1121 are retracted above the trailer body 111.

The low flat trailer that this application embodiment provided owing to set up third telescopic structure 1122, and third telescopic structure 1122 can drive supporting leg 1121 and rotate, makes low flat trailer need keep when balanced, and supporting leg 1121 can support in ground, and when main car 5 drove low flat trailer motion, supporting leg 1121 can receive the top of trailer body 111, can rational utilization space, can guarantee the smooth motion of whole car again.

With continued reference to FIG. 15, the third telescoping structure 1122 includes a hydraulic cylinder. The hydraulic cylinder comprises an oil cylinder and a hydraulic valve. The trunnions of the cylinders are connected to the support legs 1121 and the bottom of the cylinders are connected to the trailer body 111. The hydraulic valve is connected with the control device. Of course, the third telescopic structure 1122 may further include a telescopic cylinder, where the front end of the telescopic rod of the telescopic cylinder is hinged to the second hinge seat 1126, and the cylinder body is hinged to the third hinge seat 1127, so that the telescopic rod of the telescopic cylinder can drive the support leg 1121 to rotate when telescopic rod stretches.

Referring to fig. 15, the support mechanism 112 further includes a fixed hinge point bolt 1123 and a fixed seat 1124. The bottom of the fixing base 1124 is fixed on the trailer body 111, and the upper end thereof is provided with a through hole and extends into the inner cavity of the connecting section 11211. The connecting section 11211 of the support leg 1121 includes two side walls and a top wall, which are hollow inside so that the upper end of the fixing base 1124 can extend into the hollow. Fixing holes matched with the positions of the through holes are respectively arranged on the two side walls of the connecting section 11211. The front end of the fixing hinge point bolt 1123 passes through one fixing hole and then passes through the through hole, and then passes out of the other fixing hole.

In practical applications, since the connecting section 11211 of the supporting leg 1121 is hinged to the trailer body 111, when the third telescopic structure 1122 drives the telescopic leg 113 to rotate to support it on the ground, when the low trailer vibrates, the connecting section 11211 may rotate around the hinge shaft, and the connecting section 11211 and the fixing base 1124 are fixed by the fixed hinge point bolt 1123, so that the connecting section 11211 may be prevented from rotating around the hinge shaft in any situation, thereby increasing the safety of the low trailer.

Optionally, as shown in fig. 15, the support leg 1121 further includes a fourth telescoping structure 11213. The telescopic end of the fourth telescopic structure 11213 is connected with one end of the supporting section 11212 of the supporting leg 1121 for supporting the ground, the fixed end is used for supporting the ground, the central axis of the fourth telescopic structure 11213 is on the same straight line with the central axis of the supporting section 11212, namely, when the supporting section 11212 is perpendicular to the central axis of the connecting section 11211, the central axis of the fourth telescopic structure 11213 is perpendicular to the central axis of the connecting section 11211, when the supporting section 11212 is obtuse with the central axis of the connecting section 11211, the central axis of the fourth telescopic structure 11213 is obtuse with the central axis of the connecting section 11211, and when the supporting section 11212 rotates around the hinge shaft at the first hinge seat 1125, the fourth telescopic structure 11213 also rotates around the hinge shaft.

In practical application, when the length adjustment of the support section 11212 is out of control, for example, when the telescopic end is of a hydraulic structure, and the hydraulic system loses pressure to cause the oil cylinder to retract, the fourth telescopic structure 11213 can temporarily support left and right, so that the support leg 1121 can also realize the supporting function to a certain extent when the situation occurs. Alternatively, the fourth telescopic structure 11213 may be a telescopic cylinder, the telescopic end of which is connected to one end of the support section 11212 of the support leg 1121 for supporting the ground, and the fixed end is for supporting the ground. Of course, the fourth telescopic structure 11213 can be independently controlled by itself, or can be connected with a control device and controlled by the control device.

With continued reference to FIG. 15, the support mechanism 112 also includes a chassis 11214 for placement on the ground. The chassis 11214 is disposed at a fixed end of the fourth telescopic structure 11213, and an anti-slip slot is disposed on a side of the chassis 11214 away from the fourth telescopic structure 11213. The arrangement of the chassis 11214 can increase the stress area of the supporting leg 1121 and the ground, so that the supporting leg 1121 is supported more stably, and the side, far away from the fourth telescopic structure 11213, of the chassis 11214 is provided with an anti-slip slot, so that when the supporting ground is smoother, the supporting leg 1121 can still be stably supported on the supporting surface. Further, since the support structures are disposed on two sides of the first low flat trailer 111, the support legs 1121 are subjected to the outward thrust of the first low flat trailer 111, that is, the thrust along the X-axis direction, and the anti-slip grooves penetrate the chassis 11214 along the length direction of the first low flat trailer 111, that is, along the Y-axis direction, so that the friction force generated by the chassis 11214 is the greatest, and the anti-slip grooves have the best anti-slip effect.

As shown in fig. 14, the low trailer provided in the embodiment of the present application further includes telescopic legs 113. The telescopic leg 113 is provided at the rear of the trailer body 111, one end of which is connected to the bottom surface of the trailer body 111, and the other end of which is supported on the ground and connected to the control device. Specifically, one end of the telescopic leg 113 is connected to the bottom surface of the bed 1111 of the trailer body 111. In practical application, as shown in fig. 1, due to the limitation of the available position and space of the low trailer, when the low trailer includes two support mechanisms 112 and the two support mechanisms 112 are disposed on one side (front side) of the low trailer close to the main vehicle 5, more devices are placed on the front and rear sides of the flat panel 1111, and the whole low trailer is easily unbalanced. The telescopic leg 113 is provided at the rear of the trailer body 111, so that the front and rear sides of the low flatbed trailer can be balanced, and the space can be reasonably utilized due to the bottom surface of the flatbed 1111 provided on the trailer body 111. The telescopic legs 113 are connected with a control device, the control device can control the telescopic quantity of the telescopic legs 113, and the control device can simultaneously control the telescopic quantity of the supporting mechanism 112 and the telescopic legs 113, so that the automatic leveling of the low flat trailer can be realized.

Alternatively, the telescopic leg 113 may include a hydraulic cylinder, a telescopic end of which is connected to the bottom surface of the trailer body 111, a fixed end for supporting on the ground, and a hydraulic valve connected to the control device. Of course, the telescopic leg 113 may further include a telescopic cylinder, the front end of a telescopic rod of the telescopic cylinder is connected to the bottom surface of the trailer body 111, the cylinder is supported on the ground, and the air pressure valve is connected to the control device.

Of course, the number of the telescopic legs 113 may be one, two, three, etc. according to the actual situation, such as the weight of the apparatus, the number of the supporting mechanisms 112, etc. provided, and the telescopic legs 113 may be provided, which is not limited in this embodiment of the present application, and fig. 14 shows a schematic structural diagram of two telescopic legs 113.

As shown in fig. 14 and 16, the low trailer further includes a detachable support mechanism 114, and the detachable support mechanism 114 is used for assisting in supporting the trailer body 111. In practice, the detachable support mechanism 114 may prevent failure of the low trailer support due to adjustment of the support section 11212 of the support leg 1121 and failure of the fourth telescoping structure 11213. Specifically, the detachable support mechanism 114 is carried on the vehicle, when the support leg 1121 of the low flat trailer is supported on the ground and leveled, the detachable support mechanism 114 is manually taken down from the vehicle and fixed at a set position, as shown in fig. 1, a detachable support mechanism 114 is disposed on two sides of the trailer body 111, and if the regulation and control of the support section 11212 of the support leg 1121 and the failure of the fourth telescopic structure 11213 occur, the detachable support mechanism 114 can ensure that the safety of the low flat trailer is not affected. In practical applications, those skilled in the art prepare the number of the detachable support mechanisms 114 according to the actual requirements, as shown in fig. 1, two detachable support mechanisms 114 are prepared in the embodiment of the present application.

Referring to fig. 16, the detachable support mechanism 114 includes a lifting leg 1141. The lift leg 1141 includes a fixed barrel 11411 and a lift leg 11412. The fixed canister 11411 is removably attached to the trailer body 111. The upper end of the elevating leg 11412 extends into the fixed cylinder 11411 from the lower end of the fixed cylinder 11411, and is capable of elevating along the fixed cylinder 11411.

Specifically, the upper end of the fixing cylinder 11411 may be fastened to and detached from the trailer body 111 by bolts, and of course, as shown in fig. 5, the detachable support mechanism 114 may further include a clamp pad 1143, a cross section of the clamp pad 1143 perpendicular to the length is L-shaped, one surface of the clamp pad 1143 is fastened to the outer wall of the fixing cylinder 11411, and a recess of the clamp pad 1143 is used for clamping a side surface of the trailer body 111. Further, in order to improve the strength and stability of the card pad 1143, the detachable support mechanism 114 further includes a reinforcing rib 1144, as shown in fig. 5, when the fixing cylinder 11411 is a cuboid, two adjacent sides of the fixing cylinder 11411, which are opposite to the side where the card pad 1143 is fixed, are respectively provided with a reinforcing rib 1144, the reinforcing rib 1144 is in a right triangle shape, a face of one right angle side of the reinforcing rib 1144 is fixed with the card pad 1143, and a face of the other right angle side is fixed with the side of the fixing cylinder 11411.

The upper end of the lifting leg 11412 extends into the fixed cylinder 11411 from the lower end of the fixed cylinder 11411, and can be lifted along the fixed cylinder 11411, and the lifting leg 1141 may be of a hydraulic structure, so as to achieve lifting of the lifting leg 11412 along the fixed cylinder 11411 and maintenance of the height of the lifting leg 1141. Of course, the lifting support 11412 may be a cylinder with an outer contour matching an inner contour of the fixed cylinder 11411, such as a cuboid, a cylinder, etc., the outer side wall of the lifting support 11412 is provided with a plurality of annular grooves along the height direction, two through holes are provided on opposite side walls of the fixed cylinder 11411, the front end of one bolt passes through one through hole and then is clamped in the annular groove, the front end of the other bolt passes through the other through hole and then is clamped in the same annular groove, and when the front ends of the two bolts are fixed in the same annular groove with different heights, the height adjustment and the height maintenance of the lifting support 11412 can be realized.

With continued reference to fig. 16, the detachable support mechanism 114 further includes a disc 1142, where the disc 1142 is disposed on a side of the lifting leg 11412 facing away from the fixed cylinder 11411, for increasing a contact area between the lifting leg 11412 and the ground, so as to support the detachable support mechanism 114 more firmly.

As shown in fig. 17 and 18, the first low trailer 11 and the second low trailer 21 further include a container 212 and an opening and closing mechanism 213. The container 212 is provided on the upper surface of the bed 1111 of the trailer body 111 of the first low trailer 11 or the second low trailer 21. As shown in fig. 18, the container 212 includes six side edges 2125 vertically provided on the flat plate 1111 and four top edges surrounding a rectangular frame and fixed to the top ends of the side edges 2125, the side edges 2125 and the top edges constituting a skeleton of the container 212. The container 212 also includes side panels 2121 on either side, a front panel 2123, a rear panel 2124 and a top panel 2122 that together form an enclosed space that forms a closed container 212. And front plate 2123 is integrally connected to adjacent side 2125 and top edges. The width of the container 212 must not exceed 2.5m at maximum, the height must not exceed 2.8m at maximum, and the length must not exceed the total length of the bed 1111 (ensuring that the total width of the vehicle and cargo does not exceed 2.5m and the total height does not exceed 3.8m after the container 212 is mounted on a low bed trailer, and the container 212 does not hang out of the frame).

The upper ends of the plates 2121 on both sides of the container 212 are hinged to the top edges on both sides of the top plate 2122, and the opening and closing mechanisms 213 are provided on both sides. One end of the opening and closing mechanism 213 is connected to a side edge 2125 of the container 212, and the other end is connected to a side of the side plate 2121 facing the inside of the container, and can drive the side plate 2121 to open or close, so that the side of the container 212 is opened or closed. In practice, the length of the container 212 is longer, as shown in fig. 17, the side plate 2121 on each side can be configured as two sub-side plates, so that the side plates 2121 can be opened more conveniently and more easily, and the sub-side plates at corresponding positions can be opened according to the required opening and closing areas, so that the usability of the container 212 is better.

And/or, the upper end of the back plate 2124 of the container 212 is hinged with the top edge of the rear side of the top plate 2122 thereof, and an opening and closing mechanism 213 is arranged, one end of the opening and closing mechanism 213 is connected with the side edge 2125 of the container 212, and the other end of the opening and closing mechanism is connected with one surface of the back plate 2124 facing the interior of the container, so that the back of the container 212 is opened or closed. The side plates 2121 and the rear plate 2124 of the container 212 can be opened to expose the working space according to the need when the equipment is operated or overhauled, and the container 212 can be formed into a whole protective cover body when closed.

At present, in the process of transporting equipment, the low flat trailer often hopes that equipment can be shielded to prevent that rainy day rainwater from drenching equipment, sunny sunshine from shining excessively, also hope simultaneously when equipment transports job site, need not remove equipment from low flat board down, equipment can work, convenient, swift, save time. However, the existing low flat trailer can not effectively shield the transported equipment, and after the low flat trailer is moved to a working place, the equipment can work without being moved. The setting of container 212 of this application embodiment can effectively shelter from the equipment of transporting, and after the low flat trailer goes to job site, equipment need not to be moved and can work.

Alternatively, the opening and closing mechanism 213 may include a plurality of hydraulic cylinders, as shown in fig. 17 and 18, and the opening and closing mechanism 213 disposed on one side of the container 212 includes four hydraulic cylinders respectively disposed at the front and rear of the sub-side plates on the side, the bottoms of the four hydraulic cylinders are connected to the side edges 2125 of the container 212, and the trunnions are connected to the side of the side plate 2121 facing the inside of the container. The opening and closing mechanism 213 provided at the rear side of the container 212 includes two hydraulic cylinders respectively provided at both sides of the rear plate 2124, the bottoms of the two hydraulic cylinders are connected to the side edges 2125 of the container 212, and the trunnions are connected to one surface of the rear plate 2124 facing the inside of the container.

Of course, the opening and closing mechanism 213 may further include a telescopic cylinder, wherein the front end of a telescopic rod of the telescopic cylinder is connected with a side edge 2125 of the container 212, the cylinder is connected with one surface of the side plate 2121 or the rear plate 2124 facing the inside of the container, and when the telescopic rod of the telescopic cylinder stretches, the side plate 2121 or the rear plate 2124 can be driven to open or close. The opening and closing mechanism 213 may further include an electric push rod, where the front end of the push-pull rod of the electric push rod is connected to a side edge 2125 of the container 212, and the fixed end is connected to one surface of the side plate 2121 or the rear plate 2124 facing the interior of the container, and when the push-pull rod of the electric push rod is pushed and pulled, the side plate 2121 or the rear plate 2124 can be driven to open or close.

In practical applications, the opening and closing mechanism 213 may be connected to a control device, such as a PLC controller, where the control device can control the opening and closing mechanism 213, so as to realize one-key automatic opening or closing of the side plate 2121 or the rear plate 2124. When the equipment placed on the flat plate 1111 is turned into an operating state, the side plate 2121 or the rear plate 2124 is automatically opened, so that the equipment system is conveniently unfolded, and when the box trailer is turned into a transportation state, each device is stored into the inner cavity of the container 212, and the side plate 2121 or the rear plate 2124 is automatically closed.

When the side plate 2121 and the rear plate 2124 of the container 212 are all closed, the container 212 is a closed shell, the equipment is placed on the flat plate 1111 of the box trailer, and the container 212 can be used as a protective cover body to shield the equipment, so that the phenomena of rain wetting the equipment in rainy days, excessive irradiation of sunlight in sunny days and the like can be prevented. When the device is transported to a working place, the side plate 2121 and/or the rear plate 2124 are/is driven to be opened through the opening and closing structure according to actual requirements, the device is communicated with the external environment, the device can work normally, the device does not need to be moved down from the box-type trailer, and the device can work normally, and is convenient, quick and time-saving. When the device is finished, the opening and closing structure drives the side plate 2121 and/or the rear plate 2124 to be closed, and the container 212 becomes a closed protective cover body to continuously shield the device.

Referring to fig. 18, the container 212 further includes a deck mechanism 214. At least one louver is provided on the top plate 2122. The arrangement of the skylights can facilitate the communication of equipment located inside the container 212 from the top to the outside. In the present example, louvers are used as the feed openings for the crushing device 13 and the screening device 12, each of which has a size of not less than 2m x 1.5m (length x width). A cover plate mechanism 214 is arranged at a corresponding position of each skylight, and the cover plate mechanism 214 can realize the opening and closing of the skylight. The cover mechanism 214 includes a cover 2141 and a fifth telescoping structure 2142. One side of the cover plate 2141 is hinged to one side of the skylight and can seal the skylight, the telescopic end of the fifth telescopic structure 2142 is connected with one face, deviating from the interior of the box, of the cover plate 2141, the other end of the fifth telescopic structure 2142 is connected with one face, deviating from the interior of the box, of the top plate 2122, accordingly, the fifth telescopic structure 2142 can drive the cover plate 2141 to rotate, when the fifth telescopic structure 2142 is retracted, the cover plate 2141 rotates in a direction away from the skylight, the skylight is opened, and when the fifth telescopic structure 2142 stretches out, the cover plate 2141 covers the skylight, and automatic opening and closing of the skylight are achieved. The fifth telescopic structure 2142 may include two telescopic cylinders, where the two telescopic cylinders are respectively disposed on two sides of the cover plate 2141, the front end of a telescopic rod of the telescopic cylinder is connected with one side of the cover plate 2141, which is away from the interior of the box, and the cylinder body is connected with one side of the top plate 2122, which is away from the interior of the box, so that the cover plate 2141 can be driven to rotate when the telescopic rod of the telescopic cylinder stretches.

On the low-bed trailer, a small power source and a comprehensive control console are arranged in a matched manner on the vehicle, and are used for providing power for the unfolding and closing of the rear plate 2124 and/or the side plate 2121 and the cover plate mechanism 214 of the container 212 and realizing the control of the rear plate 2124 and/or the side plate 2121. The exposed equipment system after the surface of the sample machine is unfolded adopts dustproof and waterproof measures, so that the decontamination requirement is met. The container 212 can be inspected in its entirety by rain tests in a closed condition.

Referring to fig. 17, the container 212 further includes a closure panel 215. The rear plate 2124 and/or the side plate 2121 are/is provided with side windows, and the side windows are provided with a closing plate 215 at corresponding positions, wherein the closing plate 215 can close the side windows. The side windows may be formed in the rear plate 2124, the side plates 2121, the side windows may be formed in the rear plate 2124 and the side plates 2121, only one side plate 2121 may be provided with the side windows, and the side windows may be formed in the two side plates 2121, so that a person skilled in the art may set the number and the opening positions of the side windows according to actual requirements. In many occasions, only partial parts of equipment in the container 212 are exposed, so that the equipment placed in the box trailer can work normally, the whole side plate 2121 or the rear plate 2124 is opened at the moment, time and labor are wasted, the equipment is not protected, the side window is opened, the communication between the equipment and the environment can be ensured in certain working environments, and meanwhile, the protection of the container 212 to the equipment can be ensured to the greatest extent.

Of course, the closing plate 215 may be directly clamped into the side plate 2121 to close the side window, and when the side window needs to be opened, the closing plate 215 is pulled out; one side of the closing plate 215 may also be hinged with one side of the side window, thereby facilitating the rotation of the closing plate 215 and thus the opening or closing of the side window.

Alternatively, reference is made to fig. 17 and 18. The first ladder 216 is fixedly provided on the front surface of the front plate 2123 of the container 212, so that a person can climb from the vehicle plate to the top plate 2122, and the person can conveniently climb up the top plate 2122 of the container 212 for maintenance, equipment installation and the like.

Referring to fig. 17 and 18, the first low bed trailer 11 and/or the second low bed trailer 21 further include a swivel step 217. The swivel step 217 includes a ladder 2172 and a sixth telescoping structure 2171. One end of the ladder 2172 is hinged to the flat plate 1111, and the end is connected to the telescopic end of the sixth telescopic structure 2171, and the other end of the sixth telescopic structure 2171 is connected to the flat plate 1111, so that the ladder 2172 can be driven to rotate when the telescopic structure stretches and contracts. As shown in fig. 17, when the sixth telescopic 2171 is extended, the ladder 2172 is rotated in a clockwise direction, one end of the ladder 2172 facing away from the sixth telescopic 2171 is abutted against the ground, and at this time, a person can enter the inside of the container 212 through the ladder 2172, and when the sixth telescopic 2171 is retracted, the ladder 2172 is rotated in a counterclockwise direction, and finally the ladder 2172 is rotated above the flat plate 1111 and is accommodated in the container 212. The arrangement of the rotating step 217 not only facilitates the in-out between the ground and the inside of the container 212, but also can collect the rotating step 217 into the container 212 when the ladder 2172 is not used, thereby realizing the storage thereof and having extremely strong practicability.

Further, as shown in fig. 18, the first low trailer 11 and/or the second low trailer 21 further include lifting lugs 219. A plurality of lifting lugs 219 are provided on the upper surface of the roof 2122 of the container 212. Fig. 18 shows a schematic view of a structure in which the number of lifting lugs 219 is six, three lifting lugs 219 are provided on each side of the top plate 2122, and three lifting lugs 219 are provided on the front, middle and rear three positions of the side. The lifting lugs 219 facilitate lifting of the entire container 212 when it is desired to integrally lift the container 212.

Optionally, as shown in fig. 17, the first low trailer 11 and/or the second low trailer 21 further includes a drop prevention mechanism 218. The falling preventive mechanism 218 is provided on the flat plate 1111 for preventing the equipment placed on the flat plate 1111 from falling off, so that the equipment placed on the flat plate 1111 can be prevented from falling off the flat plate 1111 due to vibration or the like in operation when the rear plate 2124 or the side plate 2121 of either side of the container 212 is opened.

With continued reference to fig. 17, the drop prevention mechanism 218 includes a gate frame 2181 and two seventh telescoping structures 2182. Both ends of the gate frame 2181 are connected to both sides of the upper surface of the flat plate 1111. The telescopic ends of the two seventh telescopic structures 2182 are respectively connected with the vertical rods 21811 of the door frame 2181 one by one, and the fixed ends are connected with the upper surface of the flat plate 1111. Specifically, two ends of the gate frame 2181 are connected to two sides of the upper surface of the flat plate 1111, the telescopic ends of the two seventh telescopic structures 2182 are hinged to the vertical rods 21811 of the gate frame 2181, and the fixed ends are hinged to the upper surface of the flat plate 1111. When the seventh telescopic structure 2182 is extended, the gate frame 2181 is supported as shown in fig. 2 and 3, and a vertical rod 21811 of the gate frame 2181 and the seventh telescopic structure 2182 in the state at this time form a blocking surface, so that the side of the container 212 is blocked. When the seventh telescopic structure 2182 is retracted, the gate frame 2181 and the seventh telescopic structure 2182 are tiled on the flat plate 1111 to complete the storage thereof. The seventh telescopic structure 2182 may include a hydraulic cylinder, where a cylinder bottom of the hydraulic cylinder is hinged to the flat plate 1111, and a trunnion is hinged to the vertical rod 21811.

As shown in fig. 19 and 20, the dispensing device 28 includes a dispensing hopper 281, a first driving mechanism 282, and a dispensing mechanism 287. The feed inlet is arranged above the distributing hopper 281, the feed inlet is used for receiving materials conveyed by the measuring conveyor belt 23, a first distributing plate 283 and a second distributing plate 284 are arranged inside the distributing hopper 281, the first distributing plate 283 and the second distributing plate 284 divide the internal space of the distributing hopper 281 into a first discharging area 2814 and a second discharging area 2815, and the lower parts of the first discharging area 2814 and the second discharging area 2815 are respectively provided with a discharging hole. The distributing mechanism 287 is rotatably disposed in the distributing hopper 281 and can be communicated with the feeding port and the first discharging area 2814 and block the second discharging area 2815, or can be communicated with the feeding port and the second discharging area 2815 and block the first discharging area 2814. The first driving mechanism 282 is disposed on an outer wall of the dispensing hopper 281 and is connected to the dispensing mechanism 287, and the first driving mechanism 282 can drive the dispensing mechanism 287 to rotate.

According to the material distributing device 28 provided by the embodiment of the invention, the first driving mechanism 282 drives the material distributing mechanism 287 to rotate, so that the material distributing mechanism 287 can realize the blocking of the first material outlet region 2814 or the second material outlet region 2815, and materials can be discharged from the first material outlet region 2814 or the second material outlet region 2815, so that the automatic material distribution of the materials is realized. The material distributing device 28 solves the problems of high labor intensity and low production efficiency of manual material distribution in the prior art, realizes automatic material distribution and effectively improves the production efficiency.

As shown in fig. 19, the first and second distribution plates 283 and 284 are provided in an inverted "V" shaped structure; a first discharging area 2814 is formed between the first material distributing plate 283 and the first side wall of the material distributing hopper 281, and a second discharging area 2815 is formed between the second material distributing plate 284 and the second side wall of the material distributing hopper 281; the first side wall is opposite to the second side wall.

In this embodiment, the first material dividing plate 283 and the second material dividing plate 284 are arranged in an inverted V-shaped structure, i.e. the first material dividing plate 283 and the second material dividing plate 284 are in an eight-shaped structure, so that a first material discharging area 2814 is formed between the first material dividing plate 283 and a first side wall of the material dividing hopper 281, and a second material discharging area 2815 is formed between the second material dividing plate 284 and a second side wall of the material dividing hopper 281, wherein the first side wall and the second side wall are opposite two sides of the material dividing hopper 281. So design, when the material gets into first ejection of compact district 2814 or second ejection of compact district 2815 by the feed inlet, because first branch flitch 283 and second branch flitch 284 all are the slope setting, can guarantee that the material can be smooth follow first ejection of compact district 2814 or second ejection of compact district 2815 ejection of compact to get into corresponding material conveyer in, realize automatic efficient branch material respectively.

In addition, the first material distributing plate 283 and the second material distributing plate 284 are intersected, a material distributing mechanism 287 is arranged at the intersection of the first material distributing plate 283 and the second material distributing plate 284, and when the device is used, the material distributing mechanism 287 can be driven to rotate through the first driving mechanism 282, so that the conduction between a feed inlet and the first material discharging area 2814 is realized, and the second material discharging area 2815 is isolated; or the connection between the feed inlet and the second discharge area 2815 is realized, and the first discharge area 2814 is isolated.

Referring to fig. 19 and 20, the distribution hopper 281 includes a first space 2811, a second space 2812, and a third space 2813. The first space 2811 and the second space 2812 are prismatic structures with trapezoidal bottom surfaces, and the lower bottom surface of the trapezoidal bottom surface of the first space 2811 is located on the upper bottom surface of the trapezoidal bottom surface of the second space 2812, and the length of the lower bottom surface of the trapezoidal bottom surface of the first space 2811 is smaller than the length of the upper bottom surface of the trapezoidal bottom surface of the second space 2812. The upper bottom surface of the trapezoid bottom surface of the first space 2811 is provided with a feed inlet. The third space 2813 is a cuboid structure, and the length of the cuboid structure of the third space 2813 is equal to the length of the lower bottom surface of the trapezoid bottom surface of the second space 2812, and the lower bottom surface of the trapezoid bottom surface of the second space 2812 is located on the upper surface of the third space 2813.

In this embodiment, the distributing hopper 281 is configured as a structure composed of a first space 2811, a second space 2812 and a third space 2813, specifically, the first space 2811, the second space 2812 and the third space 2813 are sequentially communicated, the first space 2811 and the second space 2812 are both designed as prismatic structures with trapezoidal bottom surfaces, the surface of the bottom surface of the trapezoid of the first space 2811 is located on the surface of the upper bottom surface of the trapezoid of the second space 2812, the third space 2813 is designed as a cuboid structure, the surface of the bottom surface of the trapezoid of the second space 2812 is located on the upper surface of the cuboid structure of the third space 2813, the length of the cuboid structure is equal to the length of the surface of the bottom surface of the trapezoid of the second space 2812, and the length of the surface of the bottom surface of the trapezoid of the second space 2812 is ensured to be greater than the length of the surface of the bottom surface of the trapezoid of the first space 2811. So designed, when the material gets into first ejection of compact district 2814 or second ejection of compact district 2815, because the space of the lower part of first ejection of compact district 2814 and second ejection of compact district 2815 is greater than the space on upper portion, when the speed that conveyor 286 transported the material is greater than the speed that the feed bin 281 discharge gate was carried away boring chat, the material can deposit in second space 2812 and third space 2813, plays certain cushioning effect, can not lead to the feed bin 281 discharge gate jam that the material is piled up too much and leads to, influences the branch of material.

Referring to fig. 19 and 20, the separating mechanism 287 includes a partition 2871 and a rotating shaft 2872; the rotating shaft 2872 is rotatably installed at the intersection of the first material distributing plate 283 and the second material distributing plate 284, and one end of the rotating shaft 2872 passes through the side wall of the material distributing hopper 281 adjacent to the first side wall or the second side wall and extends outwards; one end of the baffle 2871 is fixedly arranged on the rotating shaft 2872, and the other end extends out of the feed inlet and can separate the feed inlet of the first discharge area 2814 or the feed inlet of the second discharge area 2815.

The distributing mechanism 287 in this embodiment is composed of a partition 2871 and a rotating shaft 2872, the rotating shaft 2872 is mounted at the position where the first distributing plate 283 and the second distributing plate 284 meet and is capable of rotating relative to the first distributing plate 283 and the second distributing plate 284, one end of the rotating shaft 2872 is passed through the side wall (the side wall adjacent to the first side wall or the second side wall) of the distributing hopper 281 to extend outwards, and the extending end is used for mounting the first driving mechanism 282. One end of the partition 2871 is fixed on the rotating shaft 2872, and the other end extends out of the feed inlet, when the rotating shaft 2872 rotates, the partition 2871 can be driven to rotate, so that the feed inlet of the first discharge area 2814 or the feed inlet of the second discharge area 2815 is blocked, and material distribution is realized.

19-20, the first drive mechanism 282 includes a cylinder 2821 and a connector 2822; the cylinder 2821 is arranged on the outer wall of the distributing hopper 281, and the telescopic rod of the cylinder 2821 is connected with the extending end of the rotating shaft 2872 through a connecting piece 2822; both ends of the connecting piece 2822 are respectively hinged with the extension rod of the cylinder 2821 and the extension end of the rotating shaft 2872.

In this embodiment, specifically, the cylinder 2821 is obliquely installed on the outer wall of the distributing hopper 281 and installed on one side of the extending end of the rotating shaft 2872, the telescopic rod of the cylinder 2821 stretches and contracts to drive the connecting piece 2822 to rotate, and then the rotating shaft 2872 is driven to rotate, and the rotating movement of the partition 2871 is realized because one end of the partition 2871 is fixed on the rotating shaft 2872.

In addition, in order to ensure that the telescopic rod of the air cylinder 2821 can better drive the rotating shaft 2872 to rotate in the telescopic process, and ensure that the connecting piece 2872 is effectively connected with the rotating shaft 2872, a fixed seat 288 is arranged at the end part of the rotating shaft 2872, the fixed seat 288 is fixed with the end part of the rotating shaft 2872, one end of the connecting piece 2822 is hinged on the fixed seat 288, the other end of the connecting piece 2822 is hinged on the telescopic rod of the air cylinder 2821, the telescopic rod of the air cylinder 2821 stretches and contracts to drive the connecting piece 2822 to rotate, and then the fixed seat 288 is driven to rotate, and finally the rotating shaft 2872 is driven to rotate, and as one end of the baffle 2871 is fixed on the rotating shaft 2872, the rotary motion of the baffle 2871 is realized, the conduction between a feed inlet and the first discharge area 2815 is realized; or the connection between the feed inlet and the second discharge area 2815 is realized, and the first discharge area 2814 is isolated.

As shown in fig. 20, the partition 2871 can be rotated from a position parallel to the first dividing plate 283 to a position parallel to the second dividing plate 284.

In this embodiment, the rotation range of the partition 2871 is set from the position parallel to the first material distributing plate 283 to the position parallel to the second material distributing plate 284, so as to ensure the opening of the feeding hole of the first material discharging area 2814 and the closing of the feeding hole of the second material discharging area 2815, or the opening of the feeding hole of the second material discharging area 2815 and the closing of the feeding hole of the first material discharging area 2814; but also can ensure the full utilization of the discharge space in the first discharge area 2814 and the second discharge area 2815, thereby being beneficial to improving the production efficiency.

Referring to fig. 19 and 20, the feeding device further includes a material blocking cover 285 mounted at the upper end of the feeding port, the cross section of the material blocking cover 285 is in a "U" structure, the "U" side of the "U" structure is matched with the side of the feeding port, and the conveying mechanism 286 is disposed at the open end of the "U" structure.

In this embodiment, a material blocking cover 285 matching with the shape of the feeding edge of the feeding inlet is disposed at the upper end of the feeding inlet, and the material blocking cover 285 is set to be of a "U" structure, that is, the "U" edge of the "U" structure is matched with the edge of the feeding inlet, the conveying mechanism 286 is disposed at the open end of the "U" structure, and the material enters the feeding inlet of the distributing hopper 281 from the open end of the "U" structure of the material blocking cover 285, so as to ensure that the material does not splash everywhere, and avoid the material from splashing outside the distributing hopper 281.

Optionally, the mobile crushing screening and sorting system further comprises a decontamination robot 31. As shown in fig. 21 and 22, the decontamination robot 31 includes a water tank 311, a chassis 312, a work arm 313, and a spray mechanism 314. Wheels are arranged on two sides of the chassis 312, and a second driving mechanism is arranged in the chassis 312 and drives the wheels to move. The water tank 311 is arranged above the chassis 312, and a water pump is arranged in the water tank 311 and is connected with the spraying mechanism 314. The working arm 313 is mounted on the chassis 312, the spraying mechanism 314 is mounted on the working arm 313, and the working arm 313 moves to drive the spraying mechanism 314 to spray the positions to be decontaminated. The work arm 313, the water pump, and the second driving mechanism are electrically connected to the control device, respectively.

After the system operation is finished, the operation device is likely to be polluted by dust, the operation equipment is likely to be polluted into pollutants due to radioactive contamination, and decontamination operation is required to be carried out before an operation site in a vehicle. The decontamination robot 31 provided by the embodiment of the invention adopts the chassis 312 with four wheels, the second driving mechanism is controlled to drive the wheels to walk through the remote control instruction of the control device, the motion of the decontamination robot 31 is realized, the water tank 311 and the working arm 313 are respectively arranged on the chassis 312, the spraying mechanism 314 is arranged on the working arm 313, the spraying mechanism 314 can move along with the working arm 313, a high-pressure water pump is arranged in the water tank 311, the high-pressure water pump is communicated with the spraying mechanism 314, the control device is used for controlling the on and off of the high-pressure water pump, the pumping of the water tank 311 into the spraying mechanism 314 is realized, and the control device is used for controlling the motion of the working arm 313, so that the spraying mechanism 314 moves along with the working arm 313, and the decontamination operation of the decontamination robot 31 on equipment or points to be decontaminated is realized. By adopting the decontamination robot 31 disclosed by the embodiment, the problem that decontamination operation is carried out on dangerous environments manually in the prior art is effectively solved, and further, the decontamination operation is carried out on dangerous environments by replacing manual work by the robot, and the life safety of operators is further ensured. The decontamination robot 31 uses a battery pack as power, water in a carried water tank 311 is sprayed out through a high-pressure water pump, the mechanical arm faces different angles and directions under a remote control state to flush different parts, because the flushing parts are different, the allowable jet pressure is different, the pressure of the carried high-pressure water pump is adjustable, the pressure is adjusted according to different requirements, the current water quantity to be carried is 300kg, the pressure is 5-20 MPa, and the equipment department continuously sprays water for 30min.

As shown in fig. 21, the work arm 313 is mounted on the chassis 312 via a turntable 315; a fifth motor is arranged in the chassis 312 positioned below the turntable 315, and an output shaft of the fifth motor is fixed with the chassis 312; the fifth motor is electrically connected with the control device.

In this embodiment, a turntable 315 is disposed on the upper surface of the chassis 312, and a fifth motor is disposed inside the chassis 312 at a position corresponding to the position below the turntable 315, where the fifth motor employs a gear motor to fix an output shaft of the fifth motor with the turntable 315, and when the control device starts the fifth motor, the output shaft of the fifth motor rotates and drives the turntable 315 to rotate, so that a working arm 313 mounted on the turntable 315 also rotates along with the rotation, thereby implementing decontamination of the working arm 313 in different orientations and at different angles of the equipment to be decontaminated. The control device in this embodiment controls the decontamination robot 31, i.e. controls the running of the wheels, the control device controls the start and stop of the motor, and the control device controls the start and stop of the water pump, all of which can be realized by adopting the prior art, and this embodiment does not require. Wherein, as a mode for controlling the motion of the decontamination robot 31, an antenna 317 is arranged on a chassis 312 of the decontamination robot 31, a second driving mechanism receives signals transmitted by control equipment through the antenna 317, a battery pack is further arranged in the chassis 312, the second driving mechanism supplies power through the battery pack, and then the second driving mechanism drives wheels to move, so that the motion of the decontamination robot 31 is realized.

Referring to fig. 22, a work arm 313 includes a first segment 3131, a second segment 3132, and an eighth telescoping structure 3133; one end of the first segment 3131 is mounted on the turntable 315, the other end is hinged to one end of the second segment 3132, and the other end of the second segment 3132 extends freely; the eighth telescoping structure 3133 is fixedly mounted on the first segment 3131, the telescoping rod of the eighth telescoping structure 3133 is slidably mounted on the second segment 3132, and the eighth telescoping structure 3133 is electrically connected to the control device.

In this embodiment, the working arm 313 may include a first segment 3131, a second segment 3132, and an eighth telescopic structure 3133, specifically, one end of the first segment 3131 is mounted on the turntable 315, the other end of the first segment 3131 is hinged to the end of the second segment 3132, and an eighth telescopic structure 3133 is disposed in a frame of the first segment 3131, and a telescopic end of a telescopic rod of the eighth telescopic structure 3133 is slidably connected to a frame structure of the second segment 3132, when the control device controls telescopic movement of the telescopic rod of the eighth telescopic structure 3133, the telescopic rod can push the second segment 3132 to move about the hinge shaft because the second segment 3132 is hinged to the end of the first segment 3131, and the spray head 3142 of the spray mechanism 314 is mounted on a free end of the second segment 3132, so that the decontamination operation at different positions of the device can be achieved.

In addition, in this embodiment, the telescopic end of the telescopic rod is slidably connected to the frame structure of the second segment 3132, specifically, the slidable connection manner may be that a sliding rail or a sliding groove is disposed on the frame structure of the second segment 3132, and then the telescopic end of the telescopic rod is provided with a sliding block, which is clamped in the sliding rail or the sliding groove, and when the telescopic rod stretches, the sliding block can slide in the sliding rail or the sliding groove to drive the second segment 3132 to rotate.

Referring to fig. 21, spray mechanism 314 includes hose 3141 and spray head 3142; the hose 3141 is respectively embedded in the first section 3131 and the second section 3132, one end of the hose 3141 is connected with the water pump, and the other end of the hose 3141 is connected with the spray head 3142; the spray head 3142 is hinged to the free end of the second segment 3132 by a mount 319.

Specifically, the hose 3141 of the spraying mechanism 314 is fixed in the frame structure of the first segment 3131 and the second segment 3132, the spray head 3142 is hinged to the free end of the second segment 3132 through the mounting member 319, one section of the hose 3141 is communicated with the high-pressure water pump, the other section of the hose is communicated with the spray head 3142, and when the spraying mechanism is in operation, the control device controls the high-pressure water pump to be started, and the spraying mechanism 314 is driven by the working arm 313 to realize decontamination operation of a position to be decontaminated. In addition, the spray head 3142 is hinged to the free end of the second segment 3132 through the mounting piece 319, and the adjustment of the angle of the spray head 3142 can be achieved through rotating the mounting piece 319, so that the decontamination operation can be achieved more flexibly.

The first segment 3131 and the second segment 3132 are both made of a lightweight steel structure and are built into a frame structure, so that on one hand, stability of the working arm 313 is ensured, the flexible pipe 3141 can be stably fixed on the working arm 313, and on the other hand, weight of the working arm 313 can be reduced, and normal actions of the first segment 3131 and/or the second segment 3132 and the spraying mechanism 314 are not affected.

The decontamination robot 31 further comprises a rotating mechanism, wherein the rotating mechanism comprises a rotating shaft, a driven gear, a driving gear and a sixth motor, wherein the driven gear, the driving gear and the sixth motor are arranged in the turntable 315; the turntable 315 is provided with a fixed lug, one end of the working arm 313 is connected with the fixed lug through a rotating shaft, and the inside of the fixed lug is hollow; the driven gear is fixedly sleeved at the end part of the rotating shaft and is arranged in the fixed lug; the driving gear is meshed with the driven gear, and the driving gear is fixedly sleeved on the output shaft of the sixth motor.

In this embodiment, a rotating mechanism is further disposed in the turntable 315, specifically, a pair of fixing lugs is disposed on the upper surface of the turntable 315, the rotating shaft sequentially passes through the fixing lugs, the end portion of the first segment 3131, and the fixing lugs, and the first segment 3131 is guaranteed to be fixedly connected with the rotating shaft, the rotating shaft is rotatably connected with the fixing lugs, the interior of one fixing lug is hollow, a driven gear is disposed in the fixing lugs, one end of the rotating shaft passes through the driven gear and is fixed with the driven gear, and when the sixth motor is started, a driving gear meshed with the driven gear on an output shaft of the sixth motor disposed in the turntable 315 drives the driven gear to rotate, so as to drive the rotating shaft to rotate, and finally, the rotation of the first segment 3131 around the rotating shaft is realized, and the swing of the working arm 313 is realized.

Referring to fig. 21 to 22, the work arm 313 is provided in front of the water tank 311, the position of the water tank 311 corresponding to the work arm 313 is provided in a "concave" structure, and the work arm 313 can be placed in the "concave" structure.

In this embodiment, the working arm 313 is disposed in front of the water tank 311, and the position of the water tank 311 corresponding to the working arm 313 is set to be a "concave" structure, when not working, the working arm 313 can be folded up, and the working arm 313 can be placed in the "concave" structure of the water tank 311, so that the storage is facilitated, and a certain space can be saved.

Referring to fig. 21, a plurality of hanging rings 318 are symmetrically disposed on opposite sides of the chassis 312, and when the electricity of the battery pack cannot be supplied to the second driving mechanism to drive the decontamination robot 31 to move, the decontamination robot 31 can be directly hung up by the hanging device through the hanging rings 318 and then moved to a designated position.

With reference to fig. 1, cameras 316 are further disposed on two sides of the front end of the chassis 312, the cameras 316 can rotate at angles, and the cameras 316 are mounted on two sides of the working arm 313, so that on one hand, damage to the cameras 316 caused by wetting of the cameras 316 by decontamination liquid in the decontamination process can be avoided, and on the other hand, the cameras 316 can rotate at angles freely, so that all-dimensional monitoring of equipment to be decontaminated and positions of points to be decontaminated can be realized, and thorough decontamination is ensured. The camera 316 capable of freely rotating in this embodiment also adopts the prior art, and this embodiment is not required.

The system provided by the embodiment of the invention further comprises the on-board vehicle 3, and the decontamination robot 31 is arranged on the on-board vehicle 3, so that the decontamination robot 31 is convenient to transport. As shown in fig. 1, the on-load vehicle 3 includes a third low trailer, which has the same structure as the first low trailer 11 and will not be described again. The decontamination robot 31 is normally loaded and transported by the third low flatbed trailer, is blocked by the fall prevention mechanism 218, is released from the third low flatbed trailer when an operation is required, and after the decontamination operation is completed, the decontamination robot 31 is recovered and loaded onto the third low flatbed trailer in a remote control state.

The on-load vehicle 3 is also provided with a power supply and the like, the on-load vehicle 3 is respectively provided with a control cabinet, a generator and a decontamination robot 31 from front to back, the on-load vehicle 3 is used for providing energy for an operation system, the vehicle is used for providing energy for the operation system, and the vehicle carries a power cable to respectively supply power for the other two operation vehicles and the decontamination robot 31. During operation, the on-load vehicle 3 is arranged in a range of 10m of the vehicle where the crushing and screening equipment 1 and the sorting equipment 2 are positioned, the power generation power is not less than 1.5 times of the total maximum required power of the other two vehicles, the system power requirement of the final equipment is determined, the full-load working time of the single oil quantity guarantee system is not less than 24 hours, and a secondary oil tank is additionally arranged if necessary. The control cabinet is used for system control and power supply and distribution, and power from the generator is sent to two operation devices through cables, and meanwhile, the decontamination robot 31 is provided with electric energy, three trolleys are connected through power cables and communication cables, and the control systems of the two operation devices are connected with the on-load vehicle 3 in a limited mode. The onboard vehicle 3 is mounted with a system control unit that controls the entire operating system. The on-load vehicle 3 is provided with wireless communication equipment for realizing control instruction and data transmission with the command vehicle 4, and for checking the state information and video of three equipment in real time, larger data flow is needed, and the wireless bridge can be adopted as the communication equipment for the communication distance, so that the data of all vehicles are transmitted through the wireless bridge.

The communication antenna is additionally arranged on the top of the on-load vehicle 3, and can communicate with the command vehicle 4 through the communication antenna. And high-definition camera equipment is arranged in the carriage, the running state of the equipment is monitored in real time, and the monitoring range covers the whole carriage. And a hydraulic pump station, a controller, power distribution equipment, a control panel and a special protection box are arranged above the front part of the third low flat trailer and close to the supporting mechanism 112, so that the whole protection is realized. After the third low trailer is adjusted in place by the main vehicle 5, cables are connected to each vehicle manually, under the condition that the generator works, hydraulic pump stations of each vehicle are started outside a carriage through the operation of a control panel, hydraulic supporting legs of the supporting mechanism 112, the carriage and the like are opened, and after the detachable supporting mechanism 114 is supported in place, the main vehicle 5 is started.

Referring to fig. 23 and 24, a command vehicle 4 provided by an embodiment of the present invention includes a chassis and a closed box 41 disposed on the chassis, where the box 41 includes a driving area 45, an operation area 43, and an electric power supply area 42; the driving area 45 is provided with a driving position 451, and a driver drives the command vehicle 4 at the driving position 451; the operation area 43 is provided with an operation seat 432 and an operation system 431, the operation seat 432 is arranged on one side of the operation system 431, and an operator operates the operation system 431 at the operation seat 432; the power supply area 42 is provided with a power generation device 421, and the power generation device 421 is used for supplying power to an operating system 431; an antenna 48 is also disposed above the case 41, and the antenna 48 is electrically connected to an operating system 431. The control sub-equipment of the control equipment is arranged on the command vehicle 4 and commands other equipment in a wireless mode, so that the operation of the other equipment is controlled.

In the command vehicle 4 provided by the embodiment of the invention, the closed box 41 is arranged on the chassis of the vehicle, the internal space of the box 41 is divided into the driving area 45, the operation area 43 and the power supply area 42, the driving area 45 is mainly used for driving the command vehicle by a driver, the operation area 43 is provided with the operating system 431, the operating system 431 is operated by the operator at the operation seat 432, the operating system 431 receives and transmits signals through the antenna 48 so as to timely master the field operation condition of each operation vehicle, and the power supply area 42 is provided with the power generation equipment 421 which is used for supplying power to the operating system 431 and the vehicle. By adopting the command vehicle 4 disclosed by the invention, the problem that the communication capability of the command vehicle 4 in the prior art is poor and information of other field operation vehicles cannot be collected and known in time is solved, and the communication capability of the command vehicle 4 is effectively improved.

In this embodiment, in order to move the command vehicle 4 at any time conveniently and quickly, the chassis and the box 41 of the vehicle are directly combined, and wheels are symmetrically installed on both sides of the chassis, so that the command vehicle can be moved at any time. In use, the power generation device 421 is a small-sized generator configured independently, and can provide power for all operating systems 431 of the work area 43, the power of the generator has 1 time redundancy, and the single oil amount ensures that the continuous operation time of the system is not less than 30 hours.

Referring to FIG. 24, operating system 431 includes a console; the console is provided with a computer and a display screen, the computer is used for remotely controlling the working vehicle, and the display screen is used for displaying the video of the working site of the working vehicle.

In this embodiment, a console is disposed in the operation area 43, a computer and a display screen are disposed on the console, the computer is connected with the antenna 48 through a wire or wirelessly, the computer receives information such as data information and audio-visual information transmitted by the operation vehicle and data acquisition of field devices and nuclear detection devices through the antenna 48, the information is displayed through the display screen, and then an operator operates the computer, wherein the operation system 431 is further provided with wireless communication devices such as a router, wifi and broadband, and the wireless communication devices are electrically and mechanically connected, and the information or instructions after operation are transmitted to the operation vehicle through the wireless communication devices, so that real-time communication and command of the operation vehicle are realized.

In addition, in the actual operation process, the operation control distance is required to be ensured to be not more than 5km, and the transmission broadband is required to be not less than 30M.

As a further improvement of the embodiment, an antenna fund regulating controller is also arranged on the control console, and the antenna fund regulating controller is electrically connected with the computer.

In this embodiment, an antenna fund adjustment controller is provided on the console, and is electrically connected to the computer, so that the computer is manually operated to adjust the angle of the antenna 48 when establishing communication until stable communication is established.

As a further improvement of the present embodiment, the operating system 431 further includes an embedded controller, which mounts a data transmission station, and which continuously transmits heartbeat data to the work vehicle.

In this embodiment, specifically, an embedded controller is set on the console, the embedded controller is used for carrying a data transmission station, the embedded controller is in butt joint with the data transmission station, the embedded controller can continuously send heartbeat data to the operation site, the operation vehicle on site receives the heartbeat data, if the heartbeat data can be normally received, the operation vehicle works normally, and if the heartbeat data cannot be normally received, the operation vehicle stops working when the heartbeat data is lost.

As a further improvement of the embodiment, a sudden stop button is further arranged on the console, the sudden stop button is electrically connected with the embedded controller, the heart beat data middle section is triggered to be started, and the data transmission radio station is powered off.

In combination with the above embodiment, a scram button is further disposed on the console, and is electrically connected with the embedded controller, where the scram button can directly power off the data transmission station, and when the heartbeat data is interrupted (i.e. the heartbeat data cannot be sent to the working vehicle), the operating system 431 is triggered to scram, and then the shutdown is implemented through the hardware, i.e. the scram button, and the data transmission station is powered off.

As shown in fig. 1, an electric lifting rod 46 is provided on the outer wall of the case 41, and an antenna 48 is provided on the top of the electric lifting rod 46.

In this embodiment, specifically, the electric lifter 46 is disposed at the tail of the command vehicle, and the communication antenna 48 is disposed at the top of the electric lifter 46, so as to adjust the height of the antenna 48, and ensure a communication distance of 5 km and a sufficient communication bandwidth.

As shown in FIG. 1, the top of the box 41 is provided with a filtering and pressurizing device 49, a filter and a positive pressure fan can be adopted, and because a large amount of dust can be generated in a working place, the top of the box 41 of the command vehicle is provided with the filtering and pressurizing device 49, the positive pressure in the vehicle is maintained to be not lower than 120Pa, the ventilation times per hour are not lower than 7 times, and the dust concentration in the vehicle is less than 0.15mg/m ³ The dust pollution of the operation site to the carriage can be reduced, and the normal work and the physical health of operators are affected. In addition, an air conditioning system can be arranged in the vehicle to ensure that the temperature in the command vehicle is adjustable at 18-30 ℃.

As shown in fig. 1, a second ladder 47 is further provided on the outer wall of the case 41, and the second ladder 47 is connected to the top of the case 41. Since the filter-booster 49 mounted on the top of the cabin accumulates dust after long-term use, frequent cleaning is required, and a worker can clean, maintain or replace the filter-booster 49 by going up to the top of the box 41 via the second ladder 47.

As shown in connection with fig. 23 to 24, the box 41 further includes a rest area 44 therein, the rest area 44 is located between the driving area 45 and the working area 43, and the rest area 44 is provided with a rest seat 441.

In this embodiment, a rest area 44 is further disposed in the case 41, and at least three rest seats 441 are disposed in the rest area 44 to ensure temporary rest of the operator. In addition, to ensure the safety and comfort of the staff in the working area 43, the command vehicle 4 adopts a sound deadening design, and the noise in the vehicle is not more than 80dB.

The mobile crushing screening and sorting system provided in the embodiment of the present application is composed of three main vehicles 5 connected with a first low flat trailer 11, a second low flat trailer 21 and a third low flat trailer, and devices placed thereon and a command vehicle 4. The whole working environment temperature of the system is between minus 20 ℃ and plus 50 ℃, and the wind resistance grade is not less than 6 grade; the protection level of the key electrical components of the controller, the camera device, the pump station and the power lamp is not lower than IP65; fully considering the working condition of the site, all parts (such as a bearing, a joint, a detector, an electric control cabinet, a monitoring camera, a cradle head and the like) of mechanical, optical, electric, electronic, electromechanical devices and the like in the working state of the equipment have certain sand and dust resistance, a protective box is additionally arranged when necessary, and all electric control equipment is protected by a container 212. The cab of the main vehicle 5 is equipped with an air conditioning ventilation system, and the internal noise is not more than 80dB. All connecting and fixing structures of the automobile body should take anti-vibration and anti-loosening measures, and key devices need to be designed in a damping way. The strong current and the weak current of the electric system are separated, and the weak current is required to be provided with interference suppression measures to ensure stability. The mechanical structure and the electrical structure of each system are arranged attractive and reasonable, the vehicle tools are complete, 2 sets of systems are backed up, the operation space is sufficient, and the overhaul and the maintenance of the systems in the vehicle are convenient. All cables, hydraulic pipelines, pneumatic pipelines and the like which are mutually connected among the vehicles are required to be connected in a rapid splicing way. Each equipment system needs to consider a corrosion prevention design. The vehicle 212 and the container 212 and the common support structure can be sprayed with three layers of anti-corrosion coating with the total thickness not less than 200 um; the key components, the moving components and the like adopt measures such as stainless steel, blackening and the like. The exposed equipment system after the surface of the prototype is unfolded meets the decontamination requirement. After all the working vehicles are in place, an operator operates the field device to enter a working state through a control end carried by the onboard vehicle 3 on site, and then drives three main vehicles 5 to withdraw to a sufficient distance from the working site, and the three main vehicles are converged with the command vehicle 4, and the command vehicle 4 takes over the monitoring of the field device. After the system operation is finished, the decontamination robot 31 is controlled by the command vehicle 4 to complete the decontamination operation of the operation system, then the driver drives three main vehicles 5 to rush to the operation site, cables are recovered manually, all containers 212 are closed at the same time, and the main vehicles 5 are respectively connected with each low flat trailer and drive away from the operation site.

The control system of the crushing and screening equipment 1 takes a PLC as a core, and the PLC controls the hydraulic valve group to control the hydraulic system of the chassis and the container 212, and the PLC is in butt joint with the crusher controller, the screening machine controller and the travelling crane controller in a communication mode, so that the equipment is controlled. The conveyor belts are all provided with conveyor belt controllers and are in butt joint with the PLC in a communication mode, special HMI is configured for the PLC, and the control of the local equipment can be realized by operating the HMI. The apparatus is provided with an in-vehicle camera device which is connected to an industrial exchange through which video data is transmitted to an onboard vehicle 3 and to a command vehicle 4 in a wireless manner. The PLC is in butt joint with the industrial exchanger through a network port, so that data remote transmission is realized.

The sorting equipment 2 takes a PLC as a core, and controls the hydraulic valve group to control the hydraulic system of the chassis and the container 212 through the PLC, and the conveyor belts are all provided with conveyor belt controllers, so that the control of the conveyor belts and related equipment is realized, and the sorting equipment is in butt joint with the PLC in a communication mode. The control of the local equipment can be realized by configuring a special HMI for the PLC and operating the HMI. The apparatus is provided with an in-vehicle camera device which is connected to an industrial exchange through which video data is sent to the exchange of the on-board vehicle 3 and finally to the command vehicle 4 in a wireless manner through the on-board vehicle 3. The PLC is in butt joint with the industrial exchanger through a network port, so that data remote transmission is realized. A special data acquisition computer is arranged, data of the two plastic scintillator detection devices 26 and data of the two NaI sensors are acquired in real time, the data are sent to the far end through an industrial switch, a control instruction is generated and sent to a PLC (programmable logic controller) through the switch, and the PLC controls the sorting equipment 2 to realize sorting.

The control sub-equipment of the on-board vehicle 3 takes a PLC as a core, controls the hydraulic valve group through the PLC so as to control the hydraulic system of the chassis and the container 212, and is in butt joint with the PLC in a communication mode. The control of the local equipment can be realized by configuring a special HMI for the PLC and operating the HMI. The onboard vehicle 3 has a camera device connected to an industrial exchange through which video data is sent to a wireless bridge and ultimately to the command vehicle 4 in a wireless manner.

The generator controller is in butt joint with the PLC in a communication mode, and sends the data of the power generation equipment to the PLC in real time. The PLC is in butt joint with the industrial exchanger through a network port, so that data remote transmission is realized. And setting a special antenna attitude-adjusting controller, and manually operating the HMI to adjust the antenna angle when establishing communication until stable communication is established. The system is provided with an independent data transmission radio station, continuously receives heartbeat information from the command vehicle 4, and if the heartbeat information is lost, the PLC of the on-load vehicle 3 immediately sends a shutdown instruction to the PLCs of the other two vehicles, so that the operation equipment is stopped.

The command vehicle 4 is provided with a special hard disk video recorder for collecting and recording video data, a reinforced computer device is carried for collecting and controlling system data, a special antenna attitude-adjusting controller is arranged, and a computer is manually operated to adjust the angle of an antenna when communication is established until stable communication is established. A special lifting rod is arranged to adjust the height of the antenna, and the controller is in butt joint with a computer and can realize control of the computer. And realizing the equipment control of the whole system, the field equipment and the data acquisition of the nuclear detection equipment through computer software. Two reinforcement screens are provided on the console, one for displaying video data and one for computer operation. The embedded controller is in butt joint with the data transmission radio station, meanwhile, an emergency stop button is arranged on the control console, the button can directly cut off power to the data transmission radio station, the embedded controller continuously sends heartbeat data to an operation site, and if the heartbeat data is interrupted, the emergency stop of the operation system is triggered. Shutdown is achieved by means of hardware. The wireless control distance is not less than 5km, and the transmission bandwidth is not less than 30M.

The software has the following functions: the setting of the working parameters and the control of the related system comprise: spreading the crushing and screening equipment 1, and setting and controlling feeding and discharging speeds and flow; unfolding the sorting equipment 2; setting and controlling the speed of the measuring conveyor belt 23, setting and controlling the thickness of materials, setting and controlling the detection distance and setting the sorting threshold (tentatively arbitrarily adjustable within the range of 100-10000 Bq/kg); setting and opening and closing a dust suppression system; setting and controlling a radioactive detector; the operation and operation control of the decontamination robot 31.

The real-time monitoring display of each system operating condition parameter includes: the mass flow of each discharging channel of the crushing and screening device 1; measuring and sorting the mass flow rate, material conveying speed, material thickness, detection distance, analysis result and energy spectrum of radioactive nuclide of sand, total activity of radioactivity, activity level of different nuclides, measuring the mass flow rate and accumulated total amount of the material on the conveyor belt 23, and the mass flow rate and accumulated total amount and share of various kinds of soil on the end conveyor belt; other auxiliary systems such as hydraulic pressure, barometric pressure and other pressure indications, abnormal alarms, generator operating parameter indications and the like (including monitoring and indication of parameters such as water temperature, engine oil pressure, rotating speed, power supply voltage, diesel oil level and the like); the water storage amount of the decontamination system water tank 311 and the operation state of the decontamination robot 31.

Video monitoring of each system operating condition, including: video monitoring of the crushing and screening device 1; video monitoring of the sorting apparatus 2 (mainly for measuring conveyor 23 feed position, detector position, sorting device 28 position); power system video monitoring (video monitoring of generators); the decontamination robot 31 is used for monitoring the working surface in a video mode.

Real-time monitoring and displaying of working environment parameters, comprising: dust concentration around each system, working environment temperature and humidity, working environment wind speed and wind power level; noise, pressure, temperature, dust concentration, etc. in the control room.

And the control system monitors the communication state of the control system and each system and gives an abnormal alarm. And analyzing abnormal conditions of each system, and automatically starting shutdown protection if necessary. And (5) storing, recording and exporting information such as parameter setting, monitoring data and the like. The generator distributes power to the vehicle-mounted distribution boxes of the other two trolleys through the vehicle-mounted 3 distribution box, and the vehicle-mounted control boxes of the trolleys transmit electric energy to different electricity utilization units.

In this specification, each embodiment is described in a progressive manner, and the same or similar parts of each embodiment are referred to each other, and each embodiment is mainly described as a difference from other embodiments.

The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the present application; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions.

Claims

1. The movable crushing, screening and sorting system is characterized by comprising crushing, screening equipment, sorting equipment and control equipment;

the crushing and screening equipment comprises a first low flat trailer, a screening device, a crushing device, a collecting hopper and a first folding conveyor belt device;

the screening device and the crushing device are arranged on the first low flat trailer, and a screen discharging outlet at the end part of the screening device and a discharging outlet of the crushing device are communicated with a top opening of the collecting hopper;

the first folding conveyor belt device is arranged on the first low flat trailer, and the input end of the first folding conveyor belt device is positioned below the bottom opening of the collecting hopper;

The sorting equipment comprises a second low flat trailer, a measuring conveyor belt, a feeder, a plastic scintillator detection device, a NaI detection device, a material distributing device and a second folding conveyor belt device;

the measuring conveyor belt is horizontally arranged on the second low flat trailer;

the feeder is arranged above the measuring conveyor belt, and a material receiving opening of the feeder is communicated with the output end of the first folding conveyor belt device;

the measuring conveyor belt is provided with the plastic scintillator detection device and the NaI detection device respectively along the self material conveying direction and at the upper part of the measuring conveyor belt;

the material distributing device is arranged above the input end of the folding conveyor belt device of the second folding conveyor belt device, and the feeding port of the material distributing device is positioned below the conveying tail end of the measuring conveyor belt;

the two folding conveyor belt devices are arranged on the second low flat trailer and are respectively positioned below the first discharging area and the second discharging area of the distributing device;

the control equipment receives and processes the material radioactivity measurement results detected by the plastic scintillator detection device and the NaI detection device, and controls the material distributing device to separate the materials conveyed by the measurement conveyor belt;

The first low flat trailer and the second low flat trailer have the same structure and comprise a trailer body and an even number of supporting mechanisms;

the even number of the supporting mechanisms are divided into two groups and are respectively arranged at two sides of the trailer body;

the supporting mechanism comprises supporting legs; the support leg comprises a connecting section and a support section;

the central axis of the connecting section and the central axis of the supporting section form a right angle or an obtuse angle, the connecting section is connected with the trailer body, and one end of the supporting section, which is away from the connecting section, is used for being supported on the ground;

the supporting section is connected with the control equipment, and the control equipment can regulate and control the length of the supporting section so as to realize the leveling of the low flat trailer;

the first folding conveyor belt device and the second folding conveyor belt device have the same structure and comprise a first conveying section, a second conveying section, a third conveying section, a first telescopic structure, a protective cover and a movable cover;

the first conveying section is arranged on the first low flat trailer or the second low flat trailer;

the second conveying section is connected with one end of the first conveying section, and the conveying surface of the second conveying section and the conveying surface of the first conveying section form an obtuse angle;

The third conveying section is hinged with one end of the second conveying section, which is away from the first conveying section;

the telescopic end of the first telescopic structure is connected with the third conveying section, and the fixed end of the first telescopic structure is connected with the second conveying section so as to drive the third conveying section to rotate around the hinge shaft;

the transmission sides of the first transmission section, the second transmission section and the third transmission section are sleeved with the protective covers;

the hinge joint of the second conveying section and the third conveying section is provided with a movable cover, and the movable cover can always shield a gap between the second conveying section and the third conveying section while the third conveying section rotates; and/or the hinge joint of the first conveying section and the second conveying section is provided with another movable cover, and the movable cover can always shield the gap between the first conveying section and the second conveying section while the second conveying section rotates;

the movable cover comprises telescopic cloth and at least two skeletons; the two ends of the framework are respectively connected with the two ends of the hinge shaft one by one, the first framework and the last framework are respectively fixed with the protective cover, and two adjacent frameworks are connected through the telescopic cloth.

2. The mobile crushing, screening and sorting system of claim 1, further comprising a push-pull mechanism;

the push-pull end of the push-pull mechanism is fixed with one end of the third conveying section, which is connected with the second conveying section, and is used for pushing and pulling the third conveying section.

3. The mobile crushing screening and sorting system of claim 1, wherein the support mechanism further comprises a fourth telescoping structure;

the connecting section of the supporting leg is hinged with the trailer body;

the telescopic end of the fourth telescopic structure is connected with the supporting leg, and the fixed end is connected with the trailer body and is connected with the control equipment.

4. The mobile crushing, screening and sorting system according to any one of claims 1-3, wherein the first low bed trailer and the second low bed trailer further comprise a container and an opening and closing mechanism;

the container is arranged on the upper surface of a flat plate of the trailer body of the first low flat trailer or the second low flat trailer;

the upper ends of the two side plates of the container are respectively hinged with the top edges of the two sides of the top plate, and the two sides are provided with opening and closing mechanisms; one end of the opening and closing mechanism is connected with a side edge of the container, and the other end of the opening and closing mechanism is connected with one surface of the side plate facing the inside of the container, so that the side plate can be driven to be opened or closed;

And/or the number of the groups of groups,

the upper end of the rear plate of the container is hinged with the top edge of the rear side of the top plate of the rear plate, an opening and closing mechanism is arranged at one end of the opening and closing mechanism is connected with the side edge of the container, and the other end of the opening and closing mechanism is connected with one surface of the rear plate facing into the container, so that the rear plate can be driven to be opened or closed.

5. The mobile crushing, screening and sorting system of claim 1, wherein the sorting apparatus further comprises a thickness adjustment device;

the thickness adjusting device is arranged on the measuring conveyor belt and is positioned between the feeder and the plastic scintillator detection device;

the thickness adjusting device comprises a bracket, a baffle and a lifting mechanism;

the support is in a door shape, and vertical plates at two sides of the support are fixed with two sides of the measuring conveyor belt;

the baffle comprises a fixed plate and a baffle plate; the fixed plate is parallel to the top plate of the bracket; the top surface of the baffle plate is connected with the fixed plate, and the surface of the baffle plate is perpendicular to the conveying direction of the measuring conveyor belt;

one end of the lifting mechanism is fixed with the top plate, and the other end of the lifting mechanism is fixed with the fixed plate, so that the lifting mechanism drives the baffle to lift.

6. The mobile crushing, screening and sorting system of claim 1, wherein the distributing device comprises a distributing hopper, a driving mechanism and a distributing mechanism;

The feeding port is arranged above the distributing hopper and used for receiving materials conveyed by the measuring conveyor belt, a first distributing plate and a second distributing plate are arranged inside the distributing hopper, the first distributing plate and the second distributing plate divide the internal space of the distributing hopper into a first discharging area and a second discharging area, and discharging ports are respectively arranged at the lower parts of the first discharging area and the second discharging area;

the material distributing mechanism is rotatably arranged in the material distributing hopper, can be communicated with the material inlet and the first material discharging area and can separate the second material discharging area, or can be communicated with the material inlet and the second material discharging area and can separate the first material discharging area;

the driving mechanism is arranged on the outer wall of the distributing hopper and connected with the distributing mechanism, and the driving mechanism can drive the distributing mechanism to rotate.

7. The mobile crushing screening and sorting system of claim 1, further comprising a decontamination robot;

the decontamination robot comprises a water tank, a chassis, a working arm and a spraying mechanism;

wheels are arranged on two sides of the chassis, and a driving mechanism is arranged in the chassis and drives the wheels to move;

The water tank is arranged above the chassis, a water pump is arranged in the water tank, and the water pump is connected with the spraying mechanism;

the working arm is arranged on the chassis, the spraying mechanism is arranged on the working arm, and the working arm moves to drive the spraying mechanism to spray the position to be decontaminated;

the working arm, the water pump and the driving mechanism are respectively and electrically connected with the control equipment.

8. The mobile crushing screening and sorting system of claim 7, further comprising an onboard vehicle, the decontamination robot being disposed on the onboard vehicle.