CN210260421U

CN210260421U - Dustless conveying system for bulk materials

Info

Publication number: CN210260421U
Application number: CN201920802913.3U
Authority: CN
Inventors: 田庆喜; 马三伟; 张貌; 田庆忠; 祝晓红
Original assignee: Zhengzhou Nuanshu Industrial Co ltd
Current assignee: Zhengzhou Nuanshu Industrial Co ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-04-07
Anticipated expiration: 2029-05-30

Abstract

The utility model discloses a dustless conveying system of bulk cargo, this dustless conveying system of bulk cargo include loading attachment, defeated material route and discharge apparatus, and loading attachment sends the bulk cargo into feeding device, and the feeding device of front and back connection further carries discharge apparatus forward with the bulk cargo again, finally packs the bulk cargo into transportation equipment such as truck by discharge apparatus. The loading device, the conveying line and the unloading device are used for conveying materials in a closed mode, so that the materials are prevented from being exposed in the conveying process, dust is prevented from flying, and the loading device is particularly suitable for conveying and loading the construction site residue soil onto a truck; the telescopic material conveying device is arranged on the discharging device, so that materials can be flexibly loaded at different positions in the truck, and the whole discharging device does not need to be moved in the loading process; the material conveying path is formed by connecting a plurality of material conveying devices, and the number of the material conveying devices can be flexibly arranged according to the requirement on the length of the material conveying path during use, so that the dustless conveying system has wider applicability.

Description

Dustless conveying system for bulk materials

Technical Field

The utility model relates to a material conveying equipment technical field, concretely relates to dustless conveying system of bulk cargo.

Background

Green construction, prevention and control of dust pollution are important matters of attention in current engineering construction, and especially, the earthwork becomes a pain point of each construction enterprise.

For a large-scale construction site in a city, a plurality of heavy trucks are required to continuously drive in and out from the construction site to carry away excavated dregs, the road surface for vehicles to pass on the construction site is usually a dirt road surface, and in fine weather, a large amount of dust can be generated when the load-carrying truck drives in the road surface of the construction site due to dry dirt; in rainy weather, can carry a large amount of earth on load truck's the wheel, in order to prevent that earth from being carried to urban road surface and causing bigger raise dust, generally need dedicated cleaning equipment to wash the truck wheel, but generally be difficult to the sanitization, still have a small part earth to be carried to urban road surface, and, every truck is gone out the building site once and all needs to wash, extravagant manpower and materials, consume the water resource, and the truck washes and the process of waiting to wash in line can occupy some transit time, reduce the conveying efficiency.

For the above reasons, there is a need for a dust-free conveying system capable of effectively reducing the dust emission and improving the conveying efficiency.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a dustless conveying system of bulk cargo can produce the technical problem of a large amount of raise dusts when solving among the prior art ground transportation earthwork.

In order to solve the technical problem, the utility model discloses a following technical scheme:

designing a dustless bulk conveying system, which comprises a feeding device, a conveying route and a discharging device, wherein the feeding device comprises a first moving trolley and a first closed conveying long box, the lower surface of the rear part of the first closed conveying long box is hinged on the first moving trolley, and the lower surface of the front part of the first closed conveying long box is connected with a first lifting support; a first receiving hopper is arranged on the upper surface of the first closed type long material conveying box close to the rear end, the first receiving hopper is communicated with the first closed type long material conveying box, a screening and crushing device is arranged in the first receiving hopper, a first material discharging port is arranged on the lower surface of the first closed type long material conveying box close to the front end, a first material conveying platform is arranged inside the first closed type long material conveying box, the head end of the first material conveying platform is located below the first receiving hopper, and the tail end of the first material conveying platform is located above the first material discharging port; the material conveying route is formed by connecting a plurality of material conveying devices; the material conveying device comprises a second moving trolley and a second closed type long material conveying box, the lower surface of the rear part of the second closed type long material conveying box is hinged to the second moving trolley, and the lower surface of the front part of the second closed type long material conveying box is connected with a second lifting support; a second material receiving hopper is arranged on the upper surface of the second closed type long material conveying box close to the rear end, the second material receiving hopper is communicated with the second closed type long material conveying box, a second material discharging hole is formed in the lower surface of the second closed type long material conveying box close to the front end, a second material conveying platform is arranged inside the second closed type long material conveying box, the head end of the second material conveying platform is located below the second material receiving hopper, and the tail end of the second material conveying platform is located above the second material discharging hole; the discharging device comprises a third moving trolley and a third closed type long conveying box, the lower surface of the rear part of the third closed type long conveying box is hinged to the third moving trolley, and the lower surface of the front part of the third closed type long conveying box is connected with a third lifting support; the defeated material long box of third closed type is close to the rear end and is equipped with the third on the upper surface and connects the hopper, the third connect the hopper with the defeated material long box intercommunication of third closed type, the defeated material long box of third closed type is close to the front end and is equipped with the third discharge gate at the lower surface, the defeated material long box of third closed type is inside to be equipped with the defeated material platform of third, the defeated material platform head end of third is located the third connects the hopper below, and the end is located third discharge gate top.

Preferably, the first moving trolley, the second moving trolley and the third moving trolley are all tracked trolleys; the crawler type automatic steering device comprises a crawler trolley, a plurality of steering devices, a plurality of support platforms and a plurality of steering devices, wherein the crawler trolley is provided with the support platforms, the steering devices are arranged between the support platforms and the crawler trolley and comprise stand columns and disc bases which are fixed on the crawler trolley, the stand columns and the disc bases are coaxial, the middle parts of the support platforms are arranged on the tops of the stand columns, and the stand columns are matched with the support platforms through bearings; the periphery of disc base is equipped with annular guide way, supporting platform's lower surface is in the stand periphery is equipped with a plurality of L type support column, the vertical portion top of L type support column is fixed supporting platform's lower surface, the end of L type support column horizontal part install with the cylinder of annular guide way looks adaptation, the cylinder sets up in the annular guide way.

Preferably, two first hinge lug seats are arranged on the upper surface of the front end of each supporting platform at intervals transversely, and two second hinge lug seats are arranged on the upper surface of the rear end at intervals transversely; the corresponding parts of the lower surfaces of the middle parts of the first closed type long material conveying box, the second closed type long material conveying box or the third closed type long material conveying box are correspondingly connected to the first hinge lug seats through first hydraulic oil cylinders; the corresponding parts of the lower surfaces, close to the rear end, of the first closed material conveying long box, the second closed material conveying long box or the third closed material conveying long box are directly hinged to the second hinged lug seat.

Preferably, the first lifting support, the second lifting support and the third lifting support comprise two support legs which are transversely arranged at intervals, a cross beam is arranged between the two support legs, and third hinge lug seats are arranged on the rear side surfaces of the middle parts of the two support legs; the corresponding parts of the lower surfaces of the middle parts of the first closed type long material conveying box, the second closed type long material conveying box or the third closed type long material conveying box are correspondingly connected to the third hinged lug seat through a second hydraulic oil cylinder; the corresponding parts of the lower surfaces of the middle parts of the first closed type long material conveying box, the second closed type long material conveying box or the third closed type long material conveying box are directly hinged to the top ends of the two support legs.

Preferably, a rotary driving device is arranged on a supporting platform on the third moving trolley and comprises a first motor and a first speed reducer, the first speed reducer is fixed on the corresponding supporting platform, a driving gear is installed on an output shaft of the first speed reducer, the top end of an upright post in the steering device on the third moving trolley penetrates through the corresponding supporting platform and is provided with a driven gear, and the driving gear is meshed with the driven gear.

Preferably, the screening and crushing device comprises at least two cleaning rollers, the cleaning rollers are arranged in the first material receiving hopper side by side at intervals along the front-back direction, the front ends of the cleaning rollers are mounted on the front side surface of the first material receiving hopper through bearings, the rear ends of the cleaning rollers are mounted on the rear side surface of the first material receiving hopper through bearings, and the cleaning rollers are arranged in a manner of inclining from front to back; a large material discharge port is formed in the rear side surface of the first material receiving hopper; the first place ahead that connects the hopper is equipped with the broken drive arrangement of sieve filter, the broken drive arrangement of sieve filter passes through actuating mechanism drive the clearance running roller rotates.

Preferably, a telescopic material conveying device is arranged at the front end of the third closed material conveying long box and comprises a material conveying long box, a fourth material conveying platform is arranged in the material conveying long box, an opening is formed in the top of the material conveying long box, and a third material outlet is located in the top of the opening; a support frame is arranged at the bottom of the third closed type long material conveying box close to the front end, the long material conveying box and the support frame are fixed on the bottom surface of the third closed type long material conveying box together, guide rails are arranged on two sides inside the long material conveying box, longitudinal beams are arranged on two sides of the fourth material conveying platform, and guide grooves corresponding to the guide rails are arranged on the longitudinal beams; a rack is arranged on one side of the longitudinal beam, a telescopic driving device used for driving the fourth material conveying platform to move back and forth along the guide rail is correspondingly arranged on the side face of the supporting frame, and an output shaft of the telescopic driving device is provided with a driving gear which is meshed with the rack.

Preferably, the front part of the third closed type material conveying long box is a bent horizontal part, the part of the third closed type material conveying long box, which is positioned behind the bent horizontal part, is a downward inclined part, and the material conveying long box and the support frame are fixed on the lower surface of the bent horizontal part.

Preferably, the first material conveying platform, the second material conveying platform, the third material conveying platform and the fourth material conveying platform are belt conveyors.

Preferably, the tracked vehicle is an electric tracked vehicle.

The utility model has the advantages of:

1. the utility model provides a loading attachment, defeated material route and discharge apparatus among the dustless conveying system of bulk cargo are all through closed mode transmission material, avoid the material to expose in transmission process, avoid the raise dust, and specially adapted carries the building site dregs and loads on the truck.

2. The utility model provides a loading attachment among the dustless conveying system of bulk cargo is equipped with the sieve and strains breaker, can filter and break the material, prevents that the bold material from getting into to cause the jam.

3. The utility model provides an unloader among the dustless conveying system of bulk cargo is equipped with flexible biography material device, and different positions in the truck are loaded with the material in a flexible way, and the loading in-process need not to wholly move unloader.

4. The utility model provides a defeated material route among the dustless conveying system of bulk cargo is connected by a plurality of feeding device and is constituteed, can arrange feeding device's quantity in a flexible way to the demand of defeated material route length when using to make this dustless conveying system suitability more extensive.

Drawings

Fig. 1 is a perspective view of a bulk dust-free conveying system in embodiment 1 of the present invention;

fig. 2 is a perspective view of a feeding device in a bulk dust-free conveying system according to embodiment 1 of the present invention;

fig. 3 is a front view of a feeding device in a bulk dust-free conveying system according to embodiment 1 of the present invention;

fig. 4 is a schematic view of the connection between the supporting platform and the steering device in the bulk dust-free conveying system according to embodiment 1 of the present invention;

fig. 5 is a top view of a feeding device in a bulk dust-free conveying system according to embodiment 1 of the present invention;

FIG. 6 is a front view of a feeding device in a bulk dust-free conveying system according to embodiment 1 of the present invention;

fig. 7 is a front view of a discharging device in a bulk dust-free conveying system according to embodiment 1 of the present invention;

fig. 8 is a left side view of a fourth feeding platform in the discharging device of the bulk dust-free conveying system in embodiment 1 of the present invention;

fig. 9 is a schematic structural view of a belt conveyor in a bulk dust-free conveying system according to embodiment 1 of the present invention.

In the drawings, each reference numeral means: the device comprises a feeding device 10, a first moving trolley 11, a first closed type long material conveying box 12, a loading flat plate 110, a supporting platform 111, a steering device 112, an upright post 1121, a disc base 1122, an annular guide groove 1123, an L-shaped support pillar 1124, a roller 1125, a first hinged lug seat 1111, a transverse support frame 1112, a second hinged lug seat 1113, a first hydraulic oil cylinder 1114, a first lifting support 13, a support leg 131, a cross beam 132, a third hinged lug seat 133, a second hydraulic oil cylinder 134, a roller 135, a first material receiving hopper 14, a first material outlet 15, a first driving device 161, a first conveying belt 162, a cleaning roller 171, a screening and crushing driving motor 181, a screening and crushing reducer 182, a gear set 183, a material conveying device 20, a second moving trolley 21, a second closed type long material conveying box 22, a second lifting support 23, a second material receiving hopper 24, a second material outlet 25, a discharging device 30, a third moving trolley 31, a loading device 112, a loading device and a rotary table, A third closed long material conveying box 32, a third lifting bracket 33, a third material receiving hopper 34, a bent horizontal part 321, a downward inclined part 322, a support frame 351, a long material conveying box 352, a fourth material conveying platform 353, a longitudinal beam 3531, a rack 3532, a guide groove 3534, a telescopic driving device 354, a first motor 361, a first speed reducer 362, a longitudinal long bracket 41, a roller 42, a roller 43, a guide roller 44, a belt 45 and a belt driving motor 46.

Detailed Description

The following embodiments are only intended to illustrate the present invention in detail, and do not limit the scope of the present invention in any way.

Example 1:

please refer to fig. 1 to fig. 9.

As shown in fig. 1, the embodiment of the utility model provides a dustless conveying system of bulk cargo includes loading attachment 10, defeated material route and discharge apparatus 30, and defeated material route is connected by a plurality of material conveying device 20 and is constituteed, is equipped with four material conveying device 20 in this embodiment to two material conveying device 20 are arranged into a set ofly.

The loading device 10 feeds the bulk material into the feeding device 20, the feeding devices 20 connected in front and back further feed the bulk material forward, and then feed the bulk material to the unloading device 30, and finally the unloading device 30 loads the bulk material into transportation equipment such as a truck.

Specifically, as shown in fig. 2 to 4, the feeding device 10 includes a first moving trolley 11 and a first closed type long material conveying box 12, the first moving trolley 11 is an electric crawler (for example, an electric crawler chassis of DP-BJCZ-250 model manufactured by texas mechanical limited), a supporting platform 111 is disposed on a load plate 110 of the crawler, and a steering device 112 is disposed between the supporting platform 111 and the load plate 110 of the crawler.

The support platform 111 is rotatable circumferentially on the steering device 112.

As shown in fig. 4, the steering device 112 includes an upright post 1121 and a disc base 1122 fixed to the crawler, the upright post 1121 and the disc base 1122 are integrally formed or the upright post 1121 is directly fixed to the load-carrying plate 110, a plurality of circumferentially distributed bolts are screwed into the disc base 1122, and the lower ends of the screws are screwed into the load-carrying plate 110. The upright 1121 is coaxial with the disc base 1122, the middle portion of the supporting platform 111 is installed at the top of the upright 1121, and the upright 1121 is matched with the supporting platform 111 through a bearing, so that the supporting platform 111 rotates on the top of the upright 1121 along the circumferential direction.

The shape of the disc base 1122 is similar to a belt pulley, an annular guide groove 1123 is formed in the periphery of the disc base 1122, four L-shaped supporting columns 1124 are uniformly arranged on the lower surface of the supporting platform 111 along the periphery of the upright post 1121, the top ends of the vertical portions of the L-shaped supporting columns 1124 are fixed on the lower surface of the supporting platform 111, a roller 1125 matched with the annular guide groove 1123 is installed at the tail end of the horizontal portion of each L-shaped supporting column 1124, and the roller 1125 is arranged in the annular guide groove 1123. Through setting up annular guide groove 1123 at disc base 1122 edge to and at the terminal installation cylinder 1125 of L type support column 1124, when not interfering the rotation of support platform 111 along the circumference at the top of stand 1121, four L type support columns 1124 still can play the supporting role to support platform 111, prevent that support platform 111 from rocking or inclining at the top of stand 1121, whole support platform 111 is more firm under the load state.

As shown in fig. 4, two first hinge ear seats 1111 are transversely provided on the upper surface of the front end of the supporting platform 111 at intervals, a transverse supporting frame 1112 is provided on the upper surface of the rear end, and two second hinge ear seats 1113 are provided on the top end of the transverse supporting frame 1112 at intervals; the corresponding part of the lower surface of the middle part of the first closed type long material conveying box 12 is correspondingly connected to the first hinge lug seat 1111 through a first hydraulic oil cylinder 1114, one end of the first hydraulic oil cylinder 1114 is hinged with the lower surface of the middle part of the first closed type long material conveying box 12, and the other end of the first hydraulic oil cylinder 1114 is hinged with the first hinge lug seat 1111; the corresponding part of the lower surface of the first closed type material conveying long box 12 close to the rear end is directly hinged on the second hinged ear seat 1113. When the two first hydraulic cylinders 1114 extend, the front part of the first closed type long material conveying box 12 can be lifted, and when the two first hydraulic cylinders 1114 shorten, the height of the front part of the first closed type long material conveying box 12 can be reduced.

Further, the lower surface of the front part of the first closed type long material conveying box 12 is connected with a first lifting support 13, the first lifting support 13 comprises two support legs 131 which are transversely arranged at intervals, a cross beam 132 is arranged between the two support legs 131, third hinge lug seats 133 are arranged on the rear side surfaces of the middle parts of the two support legs 131, and the corresponding parts of the lower surface of the middle part of the first closed type long material conveying box 12 are correspondingly connected to the third hinge lug seats 133 through second hydraulic oil cylinders 134; the corresponding part of the lower surface of the middle part of the first closed type material conveying long box 12 is directly hinged at the top ends of the two supporting legs 131, and the bottom ends of the two supporting legs 131 are respectively provided with a roller 135. When the two second hydraulic cylinders 134 are extended, they can assist in supporting the front of the first closed feed length tank 12, and when the two second hydraulic cylinders 134 are shortened, the two legs 131 are folded and no longer support the front of the first closed feed length tank 12.

As shown in fig. 2, a first receiving hopper 14 is arranged on the upper surface of the first long closed type feeding box 12 near the rear end, the first receiving hopper 14 is communicated with the first long closed type feeding box 12, two first discharge ports 15 are arranged on the lower surface of the first long closed type feeding box 12 near the front end, a first feeding platform is arranged inside the first long closed type feeding box 12, a first driving device 161 is arranged on the side surface of the first long closed type feeding box 12 near the front end, the first driving device 161 comprises a motor and a speed reducer, the first feeding platform is a belt conveyor, and the first driving device 161 drives a roller of the belt conveyor to rotate; the head end of the first material conveying platform is located below the first material receiving hopper 14, the tail end of the first material conveying platform is located above the two first material outlet ports 15, materials enter the first closed type material conveying long box 12 from the first material receiving hopper 14 and then are conveyed to the first material outlet ports 15 through the first material conveying platform, the materials are located in the first closed type material conveying long box 12 all the time in the conveying process, and the phenomenon that the materials are blown by wind or shake on the first material conveying platform to generate dust is avoided.

Further, a screening and crushing device is arranged in the first receiving hopper 14, as shown in fig. 2 and 5, the screening and crushing device includes three cleaning rollers 171, the cleaning rollers 171 are arranged in the first receiving hopper 14 side by side at intervals in the front-back direction, a first conveying belt 162 on a first conveying platform is arranged below the three cleaning rollers 171, and materials can fall onto the first conveying belt 162 through gaps between the three cleaning rollers 171 and gaps between the cleaning rollers 171 and the side surface of the first receiving hopper 14; the front end of clearance running roller 171 passes through the bearing and installs on the first leading flank that connects hopper 14, the rear end passes through the bearing and installs on the first trailing flank that connects hopper 14, and the slope setting of high back low before clearance running roller 171, bold material discharge port 141 has been seted up at the first trailing flank that connects hopper 14, bold materials such as stone in the dregs can follow the clearance running roller 171 of slope and roll to first rear portion in connecing hopper 14, and discharge by bold material discharge port 141, so can filter the material.

In addition, be equipped with screening crushing drive arrangement in first place of receiving hopper 14, as shown in fig. 5, screening crushing drive arrangement is including screening crushing driving motor 181, screening crushing reduction gear 182 and gear train 183, screening crushing driving motor 181 is through screening crushing reduction gear 182 drive gear train 183 rotation, gear train 183 is including corresponding the gear of installing on clearance running roller 171 and drive clearance running roller 171 pivoted respectively, clearance running roller 171 adopts the steel cylinder, three clearance running roller 171 constantly rotates, can carry out the breakage to the bold soft soil.

As shown in fig. 6, the feeding device 20 includes a second movable carriage 21 and a second enclosed long feeding box 22, the second movable carriage 21 has the same structure as the first movable carriage 11, a supporting platform and a steering device having the same structure as the corresponding portion of the loading device 10 are provided on the second movable carriage 21, and the second enclosed long feeding box 22 is mounted on the supporting platform in the same manner as the first enclosed long feeding box 12 on the loading device 10.

The lower surface of the front part of the second closed type material conveying long box 22 is connected with a second lifting support 23, the second lifting support 23 and the first lifting support 13 are identical in structure, a second material receiving hopper 24 is arranged on the upper surface, close to the rear end, of the second closed type material conveying long box 22, the second material receiving hopper 24 is communicated with the second closed type material conveying long box 22, a second material discharging hole 25 is formed in the lower surface, close to the front end, of the second closed type material conveying long box 22, a second material conveying platform is arranged inside the second closed type material conveying long box 22, the second material conveying platform is a belt conveyor, the head end of the second material conveying platform is located below the second material receiving hopper 24, and the tail end of the second material conveying platform is located above the second material discharging hole.

As shown in fig. 1, for the material conveying devices 20 connected in the front and back, the material conveying devices 20 adjacent in the front and back can be connected in sequence by adjusting the second lifting brackets 23 corresponding to the material conveying devices 20, wherein the second discharge port 25 of the next material conveying device 20 is communicated with the second receiving hopper 24 of the previous material conveying device 20, and the materials are conveyed forward by the material conveying devices 20 connected with each other; in the case of the feeder 20 connected to the feeder 10, the first discharge port 15 of the feeder 10 is connected to the second receiving hopper 24 of the feeder 20 preceding it, thereby transferring the material through the feeder 10 to the adjacent feeder 20.

As shown in fig. 7, the discharging device 30 includes a third moving cart 31 and a third enclosed type long material conveying box 32, the third moving cart 31 has the same structure as the first moving cart 11, a supporting platform and a steering device having the same structure as the corresponding part of the loading device 10 are provided on the third moving cart 31, and the third enclosed type long material conveying box 32 is installed on the corresponding supporting platform in the same manner as the first enclosed type long material conveying box 12 on the loading device 10.

The lower surface of the front part of the third closed type material conveying long box 32 is connected with a third lifting support 33, the third lifting support 33 and the first lifting support 13 are identical in structure, the third closed type material conveying long box 32 is provided with a third material receiving hopper 34 close to the rear end on the upper surface, the third material receiving hopper 34 is communicated with the third closed type material conveying long box 32, the third closed type material conveying long box 32 is provided with a third material outlet on the lower surface close to the front end, a third material conveying platform is arranged inside the third closed type material conveying long box 32 and is a belt conveyor, the head end of the third material conveying platform is positioned below the third material receiving hopper 34, and the tail end of the third material conveying platform is positioned above the third material outlet.

As shown in fig. 1, in the case of the feeding device 20 connected to the discharging device 30, the second discharge port 25 of the feeding device 20 is connected to the third receiving hopper 34, so that the material is transferred to the discharging device 30 through the adjacent feeding device 20, and then the material is loaded on the truck by the discharging device.

Further, the anterior part of the defeated long case 32 of third closed type is the horizontal part 321 of buckling, the part that the defeated long case 32 of third closed type is located the horizontal part 321 rear of buckling is slope portion 322 downwards, the fixed surface is equipped with flexible material device that passes under the horizontal part 321 of buckling, flexible material device that passes includes the support frame 351, pass long case 352 of material, pass long case 352 and support frame 351 together to be fixed on the bottom surface of the defeated long case 32 of third closed type, it is equipped with the defeated material platform 353 of fourth in the long case 352 to pass, the defeated material platform 353 of fourth is band conveyer, the top of passing long case 352 is equipped with uncovered, the third discharge gate is located this uncovered top.

The two sides of the inner lower surface of the long material conveying box 352 are respectively provided with a guide rail consisting of a plurality of rollers, as shown in fig. 8, the two sides of the fourth material conveying platform 353 are provided with longitudinal beams 3531, the two longitudinal beams 3531 are connected in a plurality of transverse directions, a plurality of groups of roller groups are arranged on the two longitudinal beams 3531, each group of roller groups comprises three rollers 43, the three rollers 43 are arranged in a concave arc shape, and the middle part of the belt 45 is concave when being conveyed, so that the materials are prevented from falling; a guide groove 3534 corresponding to the guide rail is fixedly arranged at the lower part of the longitudinal beam 3531, and the guide groove 3534 is arranged on each roller of the guide rail.

A rack 3532 is arranged on one side of the longitudinal beam 3531, a telescopic driving device 354 for driving the fourth material conveying platform 353 to move back and forth along the guide rail is correspondingly arranged on the side surface of the support frame 351, a driving gear is arranged on an output shaft of the telescopic driving device 354, the telescopic driving device 354 comprises a motor and a speed reducer, the part, located outside the material conveying long box 352, of the rack 3532 is meshed with the driving gear, and the fourth material conveying platform 353 can move back and forth in the material conveying long box 352 under the driving of the telescopic driving device 354.

When the material is loaded into the truck, because the truck carriage is bigger, if the material is piled up in the carriage for a long time, the material is piled up here, and other parts in the carriage do not pile up the material, at this moment, the telescopic driving device 354 can be opened, the material is conveyed to different parts in the carriage through the fourth material conveying platform 353, and the discharging device 30 does not need to be moved integrally.

Further, a rotation driving device is arranged on a supporting platform on the third moving trolley 31, the rotation driving device comprises a first motor 361 and a first speed reducer 362, the first speed reducer 362 is fixed on the corresponding supporting platform, a driving gear is installed on an output shaft of the first speed reducer 362, the top end of an upright post in a steering device on the third moving trolley 31 penetrates through the corresponding supporting platform and is provided with a driven gear, the driving gear and the driven gear are both located in a box body of the first speed reducer 362, and the driving gear is meshed with the driven gear.

After a material conveying route is built by mutually connecting a plurality of material conveying devices 20, the material conveying device can be used for a long time, and the material feeding devices 10 and the material conveying devices 20 do not need to frequently turn, so that the front material feeding devices 10 and the front material conveying devices 20 are turned manually, and the manufacturing cost caused by the arrangement of a rotary driving device can be reduced.

Because the discharge apparatus 30 needs to load materials for different trucks, the discharge apparatus 30 generally needs to rotate in the process of turning from loading materials for one truck to loading materials for another truck, and therefore, an electric rotary driving device is installed on the discharge apparatus 30, so that the operation is convenient, and the labor amount brought by manual turning of the discharge apparatus 30 is reduced.

As for the structure of each belt conveyor above, as shown in fig. 9, the belt conveyor includes a longitudinal long support 41, a plurality of groups of roller groups are arranged on the longitudinal long support 41 at intervals, each group of roller groups includes three rollers 43, the three rollers 43 are arranged in a concave arc shape as shown in fig. 8, and the middle part of the belt 45 is concave when being conveyed, so as to prevent the material from falling; the lower part of the longitudinal long support 41 is provided with a plurality of guide rollers 44 at intervals, and the two ends are provided with rollers 42, wherein the roller 42 at the right end is driven to rotate by a belt driving motor 46 and a speed reducer, so that the belt 45 can circularly rotate along the circumferential direction of the longitudinal long support 41.

The lengths of the two ends of the first closed transporting long box 12, the second closed transporting long box 22 and the third closed transporting long box 32 are all about 7 meters, and the total length of the bulk material dust-free conveying system in the embodiment is about 28 meters. In other embodiments, can build the defeated material route of different length as required, the more the table number of feeding device 20, defeated material route is longer, and the length of defeated material route can satisfy most city building sites and use, and dry material, the material that has certain viscosity all can be carried.

The present invention has been described in detail with reference to the accompanying drawings and embodiments, but those skilled in the art will understand that various specific parameters in the above embodiments can be changed without departing from the spirit of the present invention to form a plurality of specific embodiments, which are the common variation ranges of the present invention and will not be described in detail herein.

Claims

1. A dustless bulk material conveying system comprises a feeding device, a material conveying route and a discharging device, and is characterized in that,

the feeding device comprises a first moving trolley and a first closed type long material conveying box, the lower surface of the rear part of the first closed type long material conveying box is hinged to the first moving trolley, and the lower surface of the front part of the first closed type long material conveying box is connected with a first lifting support; a first receiving hopper is arranged on the upper surface of the first closed type long material conveying box close to the rear end, the first receiving hopper is communicated with the first closed type long material conveying box, a screening and crushing device is arranged in the first receiving hopper, a first material discharging port is arranged on the lower surface of the first closed type long material conveying box close to the front end, a first material conveying platform is arranged inside the first closed type long material conveying box, the head end of the first material conveying platform is located below the first receiving hopper, and the tail end of the first material conveying platform is located above the first material discharging port;

the material conveying route is formed by connecting a plurality of material conveying devices; the material conveying device comprises a second moving trolley and a second closed type long material conveying box, the lower surface of the rear part of the second closed type long material conveying box is hinged to the second moving trolley, and the lower surface of the front part of the second closed type long material conveying box is connected with a second lifting support; a second material receiving hopper is arranged on the upper surface of the second closed type long material conveying box close to the rear end, the second material receiving hopper is communicated with the second closed type long material conveying box, a second material discharging hole is formed in the lower surface of the second closed type long material conveying box close to the front end, a second material conveying platform is arranged inside the second closed type long material conveying box, the head end of the second material conveying platform is located below the second material receiving hopper, and the tail end of the second material conveying platform is located above the second material discharging hole;

the discharging device comprises a third moving trolley and a third closed type long conveying box, the lower surface of the rear part of the third closed type long conveying box is hinged to the third moving trolley, and the lower surface of the front part of the third closed type long conveying box is connected with a third lifting support; the defeated material long box of third closed type is close to the rear end and is equipped with the third on the upper surface and connects the hopper, the third connect the hopper with the defeated material long box intercommunication of third closed type, the defeated material long box of third closed type is close to the front end and is equipped with the third discharge gate at the lower surface, the defeated material long box of third closed type is inside to be equipped with the defeated material platform of third, the defeated material platform head end of third is located the third connects the hopper below, and the end is located third discharge gate top.

2. The bulk dust-free conveying system of claim 1, wherein the first moving trolley, the second moving trolley and the third moving trolley are all crawler-track trolleys;

the crawler type automatic steering device comprises a crawler trolley, a plurality of steering devices, a plurality of support platforms and a plurality of steering devices, wherein the crawler trolley is provided with the support platforms, the steering devices are arranged between the support platforms and the crawler trolley and comprise stand columns and disc bases which are fixed on the crawler trolley, the stand columns and the disc bases are coaxial, the middle parts of the support platforms are arranged on the tops of the stand columns, and the stand columns are matched with the support platforms through bearings;

the periphery of disc base is equipped with annular guide way, supporting platform's lower surface is in the stand periphery is equipped with a plurality of L type support column, the vertical portion top of L type support column is fixed supporting platform's lower surface, the end of L type support column horizontal part install with the cylinder of annular guide way looks adaptation, the cylinder sets up in the annular guide way.

3. The system for conveying bulk materials in a dust-free mode according to claim 2, wherein two first hinged lug seats are arranged on the upper surface of the front end of each supporting platform at intervals in the transverse direction, and two second hinged lug seats are arranged on the upper surface of the rear end of each supporting platform at intervals in the transverse direction;

the corresponding parts of the lower surfaces, close to the rear end, of the first closed type long material conveying box, the second closed type long material conveying box or the third closed type long material conveying box are correspondingly connected to the first hinge lug seats through first hydraulic oil cylinders;

the corresponding parts of the lower surfaces of the middle parts of the first closed type material conveying long box, the second closed type material conveying long box or the third closed type material conveying long box are directly hinged on the second hinged lug seat.

4. The dustless bulk conveying system of claim 2, wherein the first lifting support, the second lifting support and the third lifting support each comprise two legs arranged at a spacing in the transverse direction, a cross beam is arranged between the two legs, and a third hinge lug is arranged on the rear side of the middle part of each of the two legs;

the corresponding parts of the lower surfaces of the middle parts of the first closed type long material conveying box, the second closed type long material conveying box or the third closed type long material conveying box are correspondingly connected to the third hinged lug seat through a second hydraulic oil cylinder;

the corresponding parts of the lower surfaces of the middle parts of the first closed type long material conveying box, the second closed type long material conveying box or the third closed type long material conveying box are directly hinged to the top ends of the two support legs.

5. The dustless bulk conveying system of claim 2, wherein a rotary driving device is disposed on the supporting platform of the third moving trolley, the rotary driving device comprises a first motor and a first speed reducer, the first speed reducer is fixed on the corresponding supporting platform, a driving gear is mounted on an output shaft of the first speed reducer, a top end of an upright post of the steering device of the third moving trolley passes through the corresponding supporting platform and is mounted with a driven gear, and the driving gear is engaged with the driven gear.

6. The bulk dust-free conveying system according to claim 1, wherein the screening and crushing device comprises at least two cleaning rollers, the cleaning rollers are arranged in the first receiving hopper at intervals side by side along the front-back direction, the front ends of the cleaning rollers are mounted on the front side surface of the first receiving hopper through bearings, the rear ends of the cleaning rollers are mounted on the rear side surface of the first receiving hopper through bearings, and the cleaning rollers are arranged in a manner that the front ends are higher than the rear ends of the cleaning rollers and the rear ends are lower than the front ends of the cleaning rollers;

a large material discharge port is formed in the rear side surface of the first material receiving hopper; the first place ahead that connects the hopper is equipped with the broken drive arrangement of sieve filter, the broken drive arrangement of sieve filter passes through actuating mechanism drive the clearance running roller rotates.

7. The system for dustless conveying of bulk cargo according to claim 1, wherein a telescopic material conveying device is provided at the front end of the third closed long material conveying box, the telescopic material conveying device comprises a long material conveying box, a fourth material conveying platform is provided in the long material conveying box, an opening is provided at the top of the long material conveying box, and the third material outlet is located at the top of the opening;

a support frame is arranged at the bottom of the third closed type long material conveying box close to the front end, the long material conveying box and the support frame are fixed on the bottom surface of the third closed type long material conveying box together, guide rails are arranged on two sides inside the long material conveying box, longitudinal beams are arranged on two sides of the fourth material conveying platform, and guide grooves corresponding to the guide rails are arranged on the longitudinal beams;

a rack is arranged on one side of the longitudinal beam, a telescopic driving device used for driving the fourth material conveying platform to move back and forth along the guide rail is correspondingly arranged on the side face of the supporting frame, and an output shaft of the telescopic driving device is provided with a driving gear which is meshed with the rack.

8. The system for conveying bulk cargo as claimed in claim 7, wherein the third closed type elongated delivery box has a bent horizontal portion at a front portion thereof, and a downwardly inclined portion at a rear portion thereof, and the elongated delivery box and the supporting frame are fixed to a lower surface of the bent horizontal portion.

9. The system for dust-free conveyance of bulk materials according to claim 7, wherein the first, second, third and fourth feeding platforms are belt conveyors.

10. The system for dust-free conveying of bulk materials according to claim 2, wherein the tracked vehicles are all electric tracked vehicles.