CN113426528A

CN113426528A - Drawing type reversible sand making machine

Info

Publication number: CN113426528A
Application number: CN202110990222.2A
Authority: CN
Inventors: 袁双峰; 王伟; 李知澄
Original assignee: Jiangsu Meister Heavy Industry Machinery Co ltd
Current assignee: Jiangsu Meister Heavy Industry Machinery Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2021-09-24
Anticipated expiration: 2041-08-26
Also published as: CN113426528B

Abstract

The invention relates to a pull-out type reversible sand making machine, which comprises a main machine shell, a rotor mechanism, a plurality of counterattack mechanisms and a plurality of tensioning mechanisms, wherein an access door capable of being opened and closed is arranged on the side surface of the main machine shell; the rotor mechanism can rotate forwards or backwards, and a plurality of plate hammers are arranged on the rotor mechanism at intervals along the circumferential direction; the plurality of counterattack mechanisms are distributed around the rotor mechanism and each counterattack mechanism comprises a counterattack frame and a plurality of counterattack blocks; the impact block can be inserted on the impact frame or drawn out from the impact frame through the inserting part along the axial direction from the side surface of the main machine shell, and the inserting part can enable the impact block and the impact frame to be limited transversely; the impact frame is arranged in the main machine shell through a corresponding tensioning mechanism, and the tensioning mechanism can adjust the gap between the impact block and the plate hammer. The pull-type reversible sand making machine can adjust the discharging granularity according to the requirement, and the counterattack block is installed in a pull-type manner, so that the downtime for replacing wearing parts can be reduced, and the pull-type reversible sand making machine has high market popularization value.

Description

Drawing type reversible sand making machine

Technical Field

The invention relates to the technical field of sand making, in particular to a pull-type reversible sand making machine.

Background

In the building material industry, a sand making machine is important equipment for producing artificial sand, the sand making machine can produce artificial sand and can also shape aggregate, and the produced sand has excellent particle shape. The main function of the sand making machine is to crush stones and enable the crushed stones to form gravels, the existing sand making machine is generally an impact crusher, the existing sand making machine adopts the effective combination of high-speed rotating speed impact and a unique crushing cavity, the material granularity can reach the user requirement through repeated impact crushing, and the sand making machine is very important in the field of sand making. However, the existing sand making machine cannot adjust the granularity of discharged materials according to needs, and meanwhile, the service life of the impact block is short, so that production is easily delayed by frequently replacing the impact block.

Disclosure of Invention

Technical problem to be solved

In view of the defects and shortcomings of the prior art, the invention provides a pull-type reversible sand making machine, which aims to solve the problems that the existing sand making machine cannot adjust the discharging granularity according to requirements and the service life of a counterattack block is short.

(II) technical scheme

In order to achieve the above object, the present invention provides a pull-out type reversible sand making machine, comprising:

the side surface of the main machine shell is provided with an access door capable of being opened and closed;

the rotor mechanism is arranged in the main machine shell, the axial end part of the rotor mechanism is rotatably arranged on a base on the side surface of the main machine shell, and the access door can seal an opening between the base and the main machine shell; the rotor mechanism can rotate forwards or reversely, and a plurality of plate hammers are arranged on the rotor mechanism at intervals along the circumferential direction;

a plurality of impact mechanisms distributed around the rotor mechanism and each including an impact frame and a plurality of impact blocks; the impact block can be inserted into the impact frame or drawn out of the impact frame through an insertion part along the axial direction from the side surface of the main machine shell, and the insertion part can enable the impact block and the impact frame to be limited transversely;

the impact frame is installed in the main machine shell through the corresponding tensioning mechanism, and the tensioning mechanism can adjust the gap between the impact block and the plate hammer.

Preferably, the insertion part comprises slots and ribs matched with the slots, the counterattack frame is provided with a plurality of axially-through slots, the counterattack block is provided with the ribs, the slots can transversely limit the ribs, and the ribs can be axially inserted into or drawn out of the slots from the side face of the host shell in a one-to-one correspondence manner.

Preferably, the convex edge comprises a plurality of dovetail blocks distributed at intervals and a waist connecting block connecting two adjacent dovetail blocks, the width of each dovetail block is larger than that of the waist connecting block, and the shape of each dovetail block is matched with that of the slot.

Preferably, the tensioning mechanism comprises paired pull rods, a spring sleeved on the pull rods, a mounting seat and a telescopic cylinder, the first end of the pull rod is connected with the first end of the spring through a tensioning nut, the second end of the pull rod is hinged to the main machine shell, and the mounting seat is sleeved on the paired pull rods and is positioned between the second end of the spring and the second end of the pull rod; the cylinder body fixed mounting of telescoping cylinder in on the mount pad, just the telescopic link of telescoping cylinder passes the tensioning hole of host computer casing with tensioning round pin axle on the counterattack frame is articulated.

Preferably, the tensioning mechanism further comprises a limit screw inserted into a limit hole of the main machine housing, and an axis of the limit hole is parallel to an axis of the tensioning hole; the first end of the limit screw is installed outside the main machine shell through a limit nut, the second end of the limit screw is provided with a limit ring, and the axis of the limit screw is perpendicular to the axis of the limit ring;

the impact frame is provided with limiting pin shafts which are coaxial with the tensioning pin shafts and distributed at intervals, and the limiting pin shafts can swing in the limiting rings.

Preferably, the impact mechanism located at the upper part of the main machine shell is an upper impact mechanism, the upper end of the upper impact mechanism is hinged to the main machine shell, and the lower end of the upper impact mechanism is hinged to the corresponding telescopic rod of the tensioning mechanism.

Preferably, the impact mechanism located at the lower part of the main machine shell is a lower impact mechanism, and the upper end and the lower end of the lower impact mechanism are respectively installed on the main machine shell through the tensioning mechanism;

the pull-type reversible sand making machine further comprises a rotary arm, the lower end of the rotary arm is hinged to the main machine shell, and the upper end of the rotary arm is hinged to a tensioning pin shaft at the upper end of the lower counterattack mechanism.

Preferably, the pull-out reversible sand making machine further comprises a driving mechanism, and the driving mechanism can drive the swing arm to swing.

Preferably, the pull-out reversible sand making machine further comprises a control system, wherein the control system is connected with the driving mechanism, so that the gap between the lower end of the lower impact mechanism and the plate hammer can be adjusted according to the throughput of sand grains.

Preferably, the upper end of the main machine shell is provided with a feeding hole, and the lower end of the main machine shell is provided with a discharging hole; wear-resistant lining plates are arranged on the feed inlet and the inner sides of the access door;

and/or a resistance heating coil is arranged in the main machine shell.

(III) advantageous effects

The invention has the beneficial effects that: the plate hammer in the pull-type reversible sand making machine disclosed by the invention can be used for changing the edge by controlling the rotor mechanism to work reversely through the reversing switch after the plate hammer is worn on one side, so that the shutdown operation when the plate hammer needs to be turned over for adjustment is omitted, the production is not delayed, and the service life of the plate hammer is greatly prolonged. The plate hammer and the counterattack block are uniformly abraded, the frequency of replacing quick-wear parts when the machine is stopped is reduced, and the uniformity of the discharging granularity is also ensured. Moreover, the tensioning mechanism can quickly adjust the gap between the counterattack block and the plate hammer, so that the aim of changing the discharge granularity and the discharge shape can be fulfilled.

Moreover, the counterattack block is installed in a brand-new drawing mode, and by combining the design of the side door, the counterattack block can be inserted and installed on the counterattack frame from the side face of the main machine shell along the direction parallel to the axis of the rotor mechanism, the access doors on the two opposite side faces of the main machine shell can also play an axial limiting role on the counterattack block, the counterattack block can be pulled out by opening the access doors along the axial direction after the counterattack block is worn, the disassembly and the assembly are convenient and rapid, and the downtime for replacing the wearing parts can be further reduced. Moreover, the inserting part can enable the counterattack block and the counterattack frame to be limited transversely, and the counterattack block can be prevented from falling off from the counterattack frame by the transverse limitation in the sand making process, so that the safety of the equipment in the sand making process is ensured.

In addition, the angle adjustment is carried out on the lower impact mechanism through the matching of the spiral arm and the two telescopic rods, so that the size required by sand making can be quickly adjusted by the discharge gap between the plate hammer and the impact block on the two premise that the plate hammer and the impact block are prevented from colliding with each other and the lower impact mechanism has enough supporting strength.

The mine management system can count the throughput of sand grains, control the rotation angle and the rotation direction of the driving mechanism according to the throughput, and control the swing direction and the swing angle of the swing arm by the driving mechanism so as to realize the adjustment of the discharge gap. For example, when the throughput of sand particles is smaller than the preset throughput, the upper end of the swing arm can be close to the rotor mechanism through the driving mechanism, and the two telescopic rods are matched with the swing arm to act at the same time, so that the discharge gap between the lower end of the lower counterattack mechanism and the plate hammer is enlarged, and the throughput of sand particles is increased. In the process of adjusting the clearance, the manual intervention is not needed, and the production efficiency and the safety performance of the equipment are improved.

In conclusion, the pull-type reversible sand making machine can adjust the discharging granularity according to the requirement, and the counterattack block is installed in a pull-type manner, so that the downtime for replacing wearing parts can be reduced, and the market popularization value is high.

Drawings

FIG. 1 is a schematic overall structure diagram of a drawing type reversible sand making machine of the invention;

FIG. 2 is a schematic structural diagram of the drawing type reversible sand making machine in FIG. 1 after an access door and the like are removed;

FIG. 3 is a front view of FIG. 2;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is a bottom view of the pull-out reversible sand making machine of the present invention;

FIG. 6 is a left side view of the drawing type reversible sand making machine provided with a limit screw;

FIG. 7 is a front view of a counterattack block in the present invention;

fig. 8 is a left side view of fig. 7.

[ description of reference ]

10: a main housing; 11: an access door; 12: a base; 13: a feed inlet; 14: a discharge port;

20: a rotor mechanism; 21: a plate hammer;

30: a counterattack mechanism; 31: a counterattack frame; 311: a slot; 312: tensioning the pin shaft; 32: a counterattack block; 321: a rib; 3211: a dovetail block; 3212: a waist connecting block;

40: a tensioning mechanism; 41: a pull rod; 411: tensioning the nut; 42: a spring; 43: a mounting seat; 44: a telescopic cylinder;

50: a swing arm;

60: a limit screw; 61: a limit nut;

70: wear-resistant lining plate.

Detailed Description

For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings. As used herein, the terms "upper", "lower", and the like are used with reference to the orientation of FIG. 3.

The invention provides a pull-out type reversible sand making machine, which comprises a main machine shell 10, a rotor mechanism 20, a plurality of counterattack mechanisms 30 and a plurality of tensioning mechanisms 40, as shown in figures 1 to 3. An access door 11 that can be opened and closed is provided on a side surface of the main body case 10. The rotor mechanism 20 is arranged in the main machine housing 10, and the axial end of the rotor mechanism 20 is rotatably mounted on the base 12 on the side surface of the main machine housing 10, and the access door 11 can seal the opening between the base 12 and the main machine housing 10; the rotor mechanism 20 can rotate in the normal direction or the reverse direction, and a plurality of plate hammers 21 are provided on the rotor mechanism 20 at intervals in the circumferential direction. The plurality of impact mechanisms 30 are distributed around the rotor mechanism 20 and each of the impact mechanisms 30 includes an impact frame 31 and a plurality of impact blocks 32; the impact block 32 can be inserted into the impact frame 31 or can be pulled out of the impact frame 31 from the side of the main machine housing 10 in the axial direction through the insertion portion, and the insertion portion can limit the impact block 32 and the impact frame 31 in the transverse direction. The impact frame 31 is mounted in the main body housing 10 by the corresponding tensioning mechanism 40, and the tensioning mechanism 40 can adjust the gap between the impact block 32 and the plate hammer 21.

When the pull-out type reversible sand making machine works, a power mechanism (such as a motor) drives the rotor mechanism 20 and the plate hammer 21 fixedly arranged on the rotor mechanism 20 to rotate through the transmission of a transmission mechanism (such as a belt, a belt wheel and the like). When the material enters the plate hammer action zone from the upper part of the main machine housing 10, the material is crushed by the high-speed impact of the plate hammer 21, is thrown to the impact block 32 arranged around the rotor mechanism 20 to be crushed again, and then rebounds from the impact block 32 to the plate hammer action zone to be crushed again. This process is repeated until the material is crushed to a desired particle size and discharged from the bottom of the main housing 10. Wherein, the axial end of the rotor mechanism 20 is mounted on the base 12 through a bearing, and a labyrinth is formed between the axial end of the rotor mechanism 20 and the base 12 to prevent oil leakage from the bearing cartridge. The belt wheel is installed on the axial end of the rotor mechanism 20 in a mode of no key connection (for example, an expansion sleeve and the like), so that the main shaft and the internal parts of the rotor mechanism 20 can be effectively protected during overload, and the rotor mechanism is convenient to disassemble and overhaul.

The pull-out reversible sand making machine is suitable for materials such as limestone, cobblestone, quartz stone, granite, iron ore, marble, perlite, coal gangue and the like, can make both materials dry and wet, has high sand making ratio on superhard materials (cobblestone, quartz stone and the like), solves the problem of machine blockage caused by overlarge water content of cobblestone and cobblestone, and has low electric energy consumption, large throughput and about 70 percent of one-time finished product rate. The plate hammer 21 can be made of high manganese steel, and has high wear resistance, one side of the plate hammer 21 can be reversely operated through the reversing switch control rotor mechanism 20 after being worn, the plate hammer 21 is used while being changed, the shutdown operation of the plate hammer 21 when the turnover adjustment is needed is omitted, the production cannot be delayed, and the service life of the plate hammer 21 is greatly prolonged. The plate hammer 21 and the counterattack block 32 are uniformly worn, the frequency of machine halt for replacing wearing parts is reduced, and the uniformity of the discharging granularity is also ensured. Moreover, the tensioning mechanism 40 can quickly adjust the gap between the impact block 32 and the plate hammer 21, so as to achieve the purpose of changing the discharge granularity and the discharge shape.

Most importantly, the counterattack block 32 is installed in a brand-new drawing mode, and by combining the side door design, the counterattack block 32 can be inserted and installed on the counterattack frame 31 from the side face of the main machine shell 10 along the direction parallel to the axis of the rotor mechanism 20, the access doors 11 on the two opposite side faces of the main machine shell 10 can also play a role in axially limiting the counterattack block 32, the counterattack block 32 can be pulled out along the axial direction by opening the access doors 11 after the counterattack block 32 is worn, the disassembly and the assembly are convenient and rapid, and the downtime for replacing wearing parts can be further reduced. Moreover, the connection part can enable the impact block 32 and the impact frame 31 to be limited transversely, wherein the transverse direction is any direction perpendicular to the axial direction, and the transverse limitation can prevent the impact block 32 from falling off the impact frame 31 in the sand making process so as to ensure the safety of the equipment in the sand making process. Meanwhile, in a preferred embodiment, the plate hammer 21 may be installed in a drawing manner and then locked and fixed by a fastener.

Referring to fig. 3, 4, 7 and 8, in a preferred embodiment, the insertion portion includes a slot 311 and a rib 321 adapted to the slot 311, the impact frame 31 is provided with a plurality of axially penetrating slots 311, the impact block 32 is provided with the rib 321, the slot 311 can laterally limit the rib 321, and the ribs 321 can be axially inserted into the slot 311 or pulled out of the slot 311 in a one-to-one correspondence from the side of the main housing 10. The slot 311 and the rib 321 are easy to manufacture and can be quickly inserted and matched. In other embodiments of the present invention, the positions of the slot 311 and the rib 321 may be changed according to requirements.

Further, referring to fig. 7 and 8 again, the rib 321 includes a plurality of dovetail blocks 3211 distributed at intervals and a waist block 3212 connecting two adjacent dovetail blocks 3211, the width of the dovetail blocks 3211 is greater than that of the waist block 3212, and the shape of the dovetail blocks 3211 is matched with that of the slot 311. Correspondingly, the slot 311 is a dovetail groove, and it can be seen in fig. 4 that the cross-sectional profiles of the slot 311 and the dovetail block 3211 are overlapped, and the notch of the dovetail groove is a reduced notch, which can laterally limit the dovetail block 3211 and prevent the dovetail block 3211 from falling off from the dovetail groove. The waist-connecting block 3212 is a waist part with a gradually reduced size between the two dovetail blocks 3211, so that the weight of the convex rib 321 can be reduced, and meanwhile, a gap is formed between the waist-connecting block 3212 and the slot 311, and the gap can be used as an acting point during disassembly and assembly, so that the disassembly and assembly are convenient. In other embodiments of the present invention, the slot 311 may be a T-shaped slot, and the slot 311 having a different shape that can be axially inserted and laterally limited is within the scope of the present invention.

In a more preferred embodiment, as shown in fig. 3 to 6, the tensioning mechanism 40 includes a pair of pull rods 41, a spring 42 sleeved on the pull rod 41, a mounting seat 43 and a telescopic cylinder 44, a first end of the pull rod 41 is connected with a first end of the spring 42 through a tensioning nut 411, a second end of the pull rod 41 is hinged on the main machine housing 10, and the mounting seat 43 is sleeved on the pair of pull rods 41 and is located between the second end of the spring 42 and the second end of the pull rod 41; the cylinder body of the telescopic cylinder 44 is fixedly installed on the installation base 43 and located between the pair of pull rods 41 to ensure the stability of installation, and the telescopic rod of the telescopic cylinder 44 passes through the tensioning hole of the main machine housing 10 and is hinged with the tensioning pin 312 on the counterattack frame 31. The mounting seat 43 is elastically mounted on the main machine shell 10 through the spring 42, then the cylinder body of the telescopic cylinder 44 is fixedly mounted on the mounting seat 43, the spring 42 supports and tensions the telescopic cylinder 44, and further supports and tensions the counterattack frame 31 hinged with the telescopic rod of the telescopic cylinder 44, so that a sand making effect is ensured, and meanwhile, the spring 42 can also play a role in shock absorption, so that the reliability and the service life of each part on the main machine shell 10 are improved. Further, since the tension nut 411 is screwed to the tension rod 41, the tension nut 411 can move a predetermined distance on the tension rod 41 to adjust the tension of the spring 42. Moreover, since the second end of the pull rod 41 is hinged to the main machine housing 10, it means that the whole of the tensioning mechanism 40 (including the telescopic rod) can be deflected at an angle relative to the main machine housing 10 to accommodate the angular adjustment of the impact frame 31, wherein the axis where the pull rod 41 is hinged to the main machine housing 10 is parallel to the axis where the telescopic rod is hinged to the impact frame 31. The telescopic rod of the telescopic cylinder 44 can be extended or contracted, and the free end of the telescopic rod is hinged on the tensioning pin shaft 312, so that the impact frame 31 can be driven to move, the impact frame 31 is close to or far away from the plate hammer 21, and the gap between the impact block 32 and the plate hammer 21 can be adjusted. The telescopic cylinder 44 may be a hydraulic cylinder, an air cylinder, or the like, and a hydraulic cylinder is preferably used for reliably supporting and tensioning the reaction frame 31.

In addition, in order to adjust the gap between the impact block 32 and the board hammer 21 and prevent the impact block 32 from colliding with the board hammer 21 to cause damage, referring to fig. 6 again, the tensioning mechanism 40 further includes a limit screw 60 inserted into a limit hole of the main housing 10, the axis of the limit hole being parallel to the axis of the tensioning hole, so that the limit screw 60 is substantially parallel to the axial direction of the telescopic rod to avoid mutual interference. A first end of the limit screw 60 is installed outside the main machine housing 10 through a limit nut 61, a second end of the limit screw 60 is provided with a limit ring (not shown), and an axis of the limit screw 60 is perpendicular to an axis of the limit ring. The limit nut 61 is in threaded connection with the limit screw 60, and the limit nut 61 can move on the limit screw 60 for a certain distance, so that the length of the limit screw 60 inserted into the host casing 10 can be adjusted, and the position of the limit ring can be adjusted. The impact frame 31 is provided with limit pins (not shown) which are coaxial with the tensioning pin 312 and are axially distributed at intervals, the limit pins can swing in the limit rings but cannot exceed the swing range limited by the limit rings, that is, the swing range of the impact frame 31 is limited by the limit rings, the limit rings limit the maximum distance of the impact frame 31 moving towards the plate hammer 21, and the minimum gap between the impact block 32 and the plate hammer 21 can be limited. The clearance between the plate hammer 21 and the impact block 32 when the plate hammer 21 rotates in the sand making process is not less than the minimum clearance, so that the plate hammer 21 and the impact block 32 can be prevented from colliding with each other.

Further, referring to fig. 3 again, the impact mechanism 30 at the upper portion of the main housing 10 is an upper impact mechanism, the upper end of the upper impact mechanism is hinged to the main housing 10, and the lower end of the upper impact mechanism is hinged to the corresponding telescopic rod of the tensioning mechanism 40. Fig. 3 shows that the upper impact mechanisms are symmetrically arranged in pairs in the main machine housing 10, the axis of the hinge joint of the upper impact mechanisms and the main machine housing 10 is parallel to the axis of the rotor mechanism 20, the rotor mechanism 20 is located between the paired upper impact mechanisms and close to the lower end of the upper impact mechanism, and the lower end of the upper impact mechanism can swing around the hinge joint of the upper end of the upper impact mechanism under the push of the tensioning mechanism 40, so that the mounting position of the upper impact mechanism can be conveniently and quickly adjusted, and the tensioning mechanism 40 can also keep the upper impact mechanism in a tensioning state in the sand making process and buffer the impact force of materials impacting the upper impact mechanism.

In addition, as shown in fig. 3 and 4, the impact mechanism 30 located at the lower portion of the main machine housing 10 is a lower impact mechanism, and the upper end and the lower end of the lower impact mechanism are respectively installed on the main machine housing 10 through the tensioning mechanisms 40, that is, the tensioning pin shafts 312 located at the upper end and the lower end of the lower impact mechanism are respectively hinged to the corresponding telescopic rods of the tensioning mechanisms 40 in a one-to-one correspondence manner, so that the lower impact mechanism can swing based on the hinged position of the upper end or the lower end, and thus the gap between the upper end of the lower impact mechanism and the plate hammer 21 and the gap between the lower end of the lower impact mechanism and the plate hammer 21 can be adjusted. Specifically, fig. 3 shows that the lower impact mechanisms are symmetrically arranged in pairs in the main machine housing 10, the axis of the joint of the lower impact mechanisms and the telescopic rod is parallel to the axis of the rotor mechanism 20, and the rotor mechanism 20 rotates between the lower impact mechanisms in pairs. The upper end and the lower end of the lower counterattack mechanism are hinged through the tensioning mechanism 40, the mounting position of the lower counterattack mechanism can be conveniently and quickly adjusted through the expansion and contraction of the telescopic rod and the angle deflection of the telescopic rod relative to the main machine shell 10, and the tensioning mechanism 40 can also enable the lower counterattack mechanism to keep a tensioning state in the sand making process and buffer the impact force of materials impacting the lower counterattack mechanism. In a more preferred embodiment, the pull-type reversible sander further comprises a swing arm 50, a lower end of the swing arm 50 is hinged to the main machine housing 10, and an upper end of the swing arm 50 is hinged to a tension pin 312 at an upper end of the lower impact mechanism. The swing arm 50 can support the installation of the lower impact mechanism to increase the installation strength and ensure that the impact block 32 and the plate hammer 21 can apply enough impact force to materials in the sand making process.

Moreover, since the telescopic rods hinged to the upper end and the lower end of the lower impact mechanism can be respectively extended and retracted, the upper end of the swing arm 50 can also swing around the hinged position of the swing arm 50 and the main machine housing 10, so as to adjust the installation angle of the lower impact mechanism. If the tensioning mechanism 40 for mounting the lower impact mechanism further has the above-mentioned limit screw 60, it is only necessary to ensure that the limit ring on the limit screw 60 has a sufficiently large size so that the upper end and the lower end of the lower impact mechanism have sufficient adjustment ranges, that is, the lower impact mechanism can be angularly adjusted in the interval defined by the limit ring by the cooperation of the rotating arm 50 and the two telescopic rods. The arrangement can rapidly adjust the gap between the plate hammer 21 and the impact block 32 to the size required for sand making on the two premises that the plate hammer 21 and the impact block 32 are prevented from colliding with each other and the lower impact mechanism has enough supporting strength.

Further, the pull-out type reversible sand maker further includes a driving mechanism (not shown) capable of driving the swing arm 50 to swing. The driving mechanism may be a hydraulic motor, a servo motor, or the like, as long as it can provide a rotational power to the swing arm 50, and the swing direction and the swing angle of the swing arm 50 can be controlled by the driving mechanism. Moreover, in order to improve the automation degree of the pull-type reversible sand making machine, the pull-type reversible sand making machine can further comprise a control system, and the control system is connected with the driving mechanism, so that the discharging gap between the lower end of the lower impact mechanism and the plate hammer 21 can be adjusted according to the throughput of sand grains. The control system can be a mine management system, the mine management system can count the throughput of sand grains, and control the rotation angle and the rotation direction of the driving mechanism according to the throughput, and the driving mechanism controls the swing direction and the swing angle of the swing arm 50, so that the adjustment of the discharge gap is realized. For example, when the throughput of sand particles is smaller than the predetermined throughput, the upper end of the swing arm 50 can be moved closer to the rotor mechanism 20 by the driving mechanism, and the two telescopic rods can be moved in cooperation with the swing arm 50, so that the discharge gap between the lower end of the lower impact mechanism and the plate hammer 21 is increased, and the throughput of sand particles is increased. In the process of adjusting the clearance, the manual intervention is not needed, and the production efficiency and the safety performance of the equipment are improved.

In addition, referring to fig. 2 and 3 again, the upper end of the main housing 10 is opened with a feed port 13, and the lower end of the main housing 10 is opened with a discharge port 14. The feed inlet 13 and the inner side of the access door 11 are both provided with wear-resistant lining plates 70. The large-sized material enters the main machine housing 10 from the feeding hole 13, which may cause a large impact to the main machine housing 10 and easily damage the main machine housing 10, and the increase of the wear-resistant lining plate 70 may improve the service life of the vulnerable parts.

In addition, in a more preferred embodiment, a resistance heating coil (not shown) is provided in the main machine housing 10, and the resistance heating coil can be turned on as required to heat the material with high humidity, so as to prevent the material from being blocked, thereby improving the sand making efficiency.

In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.

In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present invention.

Claims

1. The utility model provides a reversible system sand machine of pull formula, its characterized in that, the reversible system sand machine of pull formula includes:

the portable computer comprises a main machine shell (10), wherein an access door (11) capable of being opened and closed is arranged on the side surface of the main machine shell (10);

the rotor mechanism (20) is arranged in the main machine shell (10), the axial end part of the rotor mechanism (20) is rotatably installed on a base (12) on the side surface of the main machine shell (10), and the access door (11) can seal an opening between the base (12) and the main machine shell (10); the rotor mechanism (20) can rotate forwards or backwards, and a plurality of plate hammers (21) distributed at intervals along the circumferential direction are arranged on the rotor mechanism (20);

a plurality of counterattack mechanisms (30), a plurality of said counterattack mechanisms (30) being distributed around said rotor mechanism (20) and said counterattack mechanisms (30) each comprising a counterattack carrier (31) and a plurality of counterattack blocks (32); the impact block (32) can be inserted on the impact frame (31) or can be pulled out of the impact frame (31) from the side surface of the main machine shell (10) along the axial direction through an insertion part, and the insertion part can enable the impact block (32) and the impact frame (31) to be limited transversely;

a plurality of tensioning mechanisms (40), wherein the impact frame (31) is installed in the main machine shell (10) through the corresponding tensioning mechanisms (40), and the tensioning mechanisms (40) can adjust the gap between the impact block (32) and the plate hammer (21);

the inserting part comprises a slot (311) and a rib (321) matched with the slot (311), the counterattack frame (31) is provided with a plurality of axially through slots (311), the counterattack block (32) is provided with the rib (321), the slot (311) can transversely limit the rib (321), and the rib (321) can be axially inserted into the slot (311) or pulled out of the slot (311) in a one-to-one correspondence manner from the side surface of the main machine shell (10);

the convex rib (321) comprises a plurality of dovetail blocks (3211) distributed at intervals and a waist connecting block (3212) connecting two adjacent dovetail blocks (3211), the width of each dovetail block (3211) is larger than that of each waist connecting block (3212), and the shape of each dovetail block (3211) is matched with that of the slot (311).

2. The pull-type reversible sand making machine according to claim 1, wherein the tensioning mechanism (40) comprises a pair of pull rods (41), a spring (42) sleeved on the pull rods (41), a mounting seat (43) and a telescopic cylinder (44), a first end of each pull rod (41) is connected with a first end of the spring (42) through a tensioning nut (411), a second end of each pull rod (41) is hinged on the main machine shell (10), and the mounting seat (43) is sleeved on the pair of pull rods (41) and is located between a second end of the spring (42) and a second end of each pull rod (41); the cylinder body of the telescopic cylinder (44) is fixedly arranged on the mounting seat (43), and the telescopic rod of the telescopic cylinder (44) penetrates through the tensioning hole of the main machine shell (10) to be hinged with a tensioning pin shaft (312) on the counterattack frame (31).

3. A pull-type reversible sanding machine according to claim 2, characterized in that the tensioning mechanism (40) further comprises a limit screw (60) inserted into a limit hole of the main machine housing (10), the axis of the limit hole being parallel to the axis of the tensioning hole; the first end of the limiting screw rod (60) is installed outside the host machine shell (10) through a limiting nut (61), the second end of the limiting screw rod (60) is provided with a limiting ring, and the axis of the limiting screw rod (60) is perpendicular to the axis of the limiting ring;

the impact frame (31) is provided with limiting pin shafts which are coaxial with the tensioning pin shaft (312) and are distributed at intervals, and the limiting pin shafts can swing in the limiting rings.

4. A drawer-type reversible sanding machine according to claim 2, characterized in that the counterattack mechanism (30) located in the upper part of the main machine housing (10) is an upper counterattack mechanism, the upper end of which is hinged to the main machine housing (10) and the lower end of which is hinged to the telescopic rod of the corresponding tensioning mechanism (40).

5. A pull-type reversible sand making machine according to claim 2, wherein the counterattack mechanism (30) located at the lower part of the main machine housing (10) is a lower counterattack mechanism, and the upper end and the lower end of the lower counterattack mechanism are respectively mounted on the main machine housing (10) through the tensioning mechanism (40);

the pull-type reversible sand making machine further comprises a rotary arm (50), the lower end of the rotary arm (50) is hinged to the main machine shell (10), and the upper end of the rotary arm (50) is hinged to a tensioning pin shaft (312) at the upper end of the lower counterattack mechanism.

6. A pull-type reversible sand making machine according to claim 5, further comprising a driving mechanism capable of driving the swing arm (50) to swing.

7. A pull-type reversible sanding machine according to claim 6, characterized in that it further comprises a control system connected to the drive mechanism so as to be able to adjust the gap between the lower end of the lower impact mechanism and the plate hammer (21) according to the throughput of sand.

8. A pull-out type reversible sand making machine according to claim 1, wherein the upper end of the main machine shell (10) is provided with a feed port (13), and the lower end of the main machine shell (10) is provided with a discharge port (14); wear-resistant lining plates (70) are arranged on the inner sides of the feed port (13) and the access door (11);

and/or a resistance heating coil is arranged in the main machine shell (10).