CN115959444A - Frozen coal cleaning equipment for hopper bin grate of car dumper - Google Patents

Abstract

The invention relates to frozen coal cleaning equipment for a hopper bin grate of a tipper, which is characterized in that: the flexible movable shovel unit comprises steel rails, a flexible movable shovel unit and an elastic crushing unit, wherein the steel rails are symmetrically arranged on the left side and the right side of a bin grate, the elastic crushing unit is installed at the front end of the bin grate, and the flexible movable shovel unit which is installed on the steel rails in a sliding mode is arranged at the rear end of the bin grate. The invention can effectively avoid the problem of climbing of large frozen coal piles, can assist the car dumper to work efficiently, and meets the requirements of safe and efficient coal transfer.

Description

Frozen coal cleaning equipment for hopper bin grate of car dumper

Technical Field

The invention relates to the technical field of frozen coal cleaning, in particular to frozen coal cleaning equipment for a hopper bin grate of a tipper.

Background

Raw coal forms the finished product coal after carrying out the coal washing, in the work that the finished product coal was transported, the uninstallation is indispensable step, because the coal cinder itself volume differs, in addition cold winter, the coal cinder has certain humidity, lead to the coal to freeze the piece more, in remote transportation jolts, the frozen coal piece that lies in the carriage and leans on can be along with jolting further compaction, the volume of freezing the coal further increases, a large amount of frozen coals are by the tipper after unloading to the grate net, can block up the net grate mouth, cause main coal unloading point to block up, accumulate gradually can lead to the net grate thoroughly to become invalid.

The traditional method for solving the problem that the frozen coal blocks are blocked at the mesh grate opening is to stop working and clean blocking points, because the density of the frozen coal is higher, the workload is increased, time and labor are wasted, the crushing effect is not ideal, the treatment method cannot fundamentally improve the coal unloading efficiency, and the working efficiency of a coal railway system is influenced.

Current clear grate breaker when meetting the frozen coal condition of complicacy, can influence frozen coal clearance effect, for example equipment when meetting great frozen coal heap, self shake is serious, and the noise is big, and the equilibrium is poor, finally leads to the reliability poor, and outage rate and maintenance rate are high, clear up frozen coal inefficiency. Particularly, the phenomenon that the grate cleaning crusher slips in winter can occur, and even the crusher is blocked or climbs up due to overlarge frozen coal piles.

Most common grate cleaning crushers are large in size and large in occupied space, cannot be installed below a hopper bin of a tipper, and do not belong to special grate cleaning devices for grates of the hopper bin of the tipper. Aiming at the problems that a crusher is stuck or climbs due to overlarge frozen coal pile, equipment shakes seriously, noise is large, reliability is poor and the like, the frozen coal cleaning equipment for the hopper grate of the tipper is developed, and the cleaning device is arranged below the tipper and is used for matching with a coal unloading process of the tipper to perform subsequent coal block screening work.

Disclosure of Invention

Aiming at the problem that the frozen coal blocks cannot fall into a coal bunker at a mesh grate opening to cause blockage, the invention provides a frozen coal cleaning device of a hopper grate of a tipper, which can clean a large-size frozen coal pile or frozen coal blocks, has ideal grate cleaning effect, drives a traction bracket to move up and down through the extension and retraction of a hydraulic cylinder in a flexible moving shovel unit, thereby driving a moving shovel connected with a shock absorber to work, shoveling the frozen coal blocks clamped at the mesh grate opening, simultaneously driving the moving shovel to shovel the large-size frozen coal blocks to an elastic crushing unit by using a driving trolley assembly, and eliminating and reducing the vibration force transmitted to the flexible moving shovel unit and the vibration transmitted to the moving shovel by the flexible moving shovel unit in the coal shoveling process by the shock absorber; through using shock mount in elasticity crushing unit, increase the shock insulation layer, offset the most energy that the breaker during operation produced to play absorbing effect, better protection equipment body structure improves the work efficiency of tipper.

The invention provides frozen coal cleaning equipment for a hopper bin grate of a tipper, which is characterized in that: the flexible movable shovel unit comprises steel rails, a flexible movable shovel unit and an elastic crushing unit, wherein the steel rails are symmetrically arranged on the left side and the right side of a bin grate, the elastic crushing unit is installed at the front end of the bin grate, and the flexible movable shovel unit which is installed on the steel rails in a sliding mode is arranged at the rear end of the bin grate.

The flexible moving shovel unit comprises a driving trolley assembly and a retracting assembly positioned between the two driving trolley assemblies, the driving trolley assembly comprises a cleaning shovel, a cover plate, a driving chassis, a hydraulic motor, driving wheels and a sliding block, the driving chassis is arranged in the cover plate, the sliding block is arranged in the middle of the driving chassis, the driving wheels are arranged on the driving chassis on the front side and the rear side of the sliding block, the driving wheels are driven by the hydraulic motor, an opening is formed in the inner side of the top of the cover plate, two ends of the body penetrate through the opening and are connected to the tops of the sliding blocks on the two sides, and the cleaning shovel is arranged at the front end of the cover plate;

receive and release the subassembly and include body, pneumatic cylinder, pull the support, remove the shovel shock absorber and remove the shovel, install the body respectively and pull the support between two sliders about, should pull the support and go up and down by the pneumatic cylinder drive of installing on the body, the bottom interval equipartition of body has the removal shovel, removes the installation of shovel and body hinge, installs on removing the shovel and pulls the removal shovel shock absorber that the leg joint was connected.

And one side of the bottom of the sliding block is provided with a steel rail groove which slides on a steel rail, the middle of the bottom surface of the sliding block is provided with an M-shaped groove, the top of the sliding block is provided with a supporting groove, the inner side surface of the sliding block is provided with a vertical groove, the bottom surface of the body is installed in the supporting groove, the middle of the driving chassis is connected with the M-shaped groove, and a traction support is arranged in the vertical groove in a sliding manner.

And, it is equipped with top U type fork mouth to remove the shovel top, the middle part of removing the shovel is equipped with middle part U type fork mouth, the top U type fork mouth that removes the shovel articulates on the body, the middle part U type fork mouth that removes the shovel is connected with the one end of shock absorber, the shock absorber other end with the leg joint that pulls.

And the elastic crushing unit comprises a damping support, a bearing seat, a moving roller, a small head hammer, a coupler, a motor, a speed reducer damping support, a limiting block and a big head hammer, wherein the two steel rails are respectively provided with the damping support and the speed reducer damping support, the damping support is provided with the bearing seat, the speed reducer driven by the motor is arranged on the speed reducer damping support, an output shaft of the speed reducer is connected with one end of the moving roller through the coupler, the other end of the moving roller is connected onto the bearing seat, and the roller body of the moving roller is respectively provided with the small head hammer and the big head hammer.

And the elastic crushing unit also comprises a protective cover assembly, the protective cover assembly comprises a top inclined plate, a side steel plate, a rear counterattack iron block and a side counterattack plate, the side steel plate is arranged on the outer sides of the two steel rails, the side counterattack plate is arranged on the inner side surface of the side steel plate, the rear side steel plate is arranged at the rear part of the two side steel plates, the rear counterattack iron block is arranged on the rear side steel plate, and the top inclined plate covers the top ends of the two side steel plates.

And the shock absorber comprises a left end pull ring, a shock absorbing spring, a damper and a right end pull ring, the damper is arranged in the shock absorbing spring in a penetrating manner, and two ends of the damper are respectively connected with the left end pull ring and the right end pull ring which are arranged outside the shock absorbing spring.

And the damping support comprises an upper pressure plate, a damping spring and a fixed support, the upper pressure plate is connected with the fixed support in a sliding mode in the longitudinal direction, and the damping spring is arranged between the upper pressure plate and the fixed support.

And the small head hammers and the large head hammers are respectively arranged on the movable roller in rows at intervals.

Compared with the prior art, the invention has the following advantages:

1. according to the invention, the frozen coal blocks clamped at the mesh grate opening are shoveled by the movable shovels, and the frozen coal stacked on the mesh grate is paved, so that the phenomenon of climbing or stopping when large frozen coal is stacked is avoided, and the frozen coal blocks with larger volume are shoveled to the elastic crushing unit for crushing.

2. The movable shovel shock absorber eliminates and reduces the vibration force transmitted to the flexible movable shovel unit or the vibration transmitted to the movable shovel by the flexible movable shovel unit in the coal shoveling process, increases the freedom of movement of the movable shovel, effectively avoids the movable shovel from being blocked, stabilizes the gravity center of the flexible movable shovel unit, enables the flexible movable shovel unit to operate more stably and efficiently in the working process, and avoids the fault of climbing or stopping equipment.

3. When the flexible movable shovel unit meets a frozen coal pile, when the excitation frequency is lower than the natural frequency of the movable shovel shock absorber, the movable shovel shock absorber does not play a role in vibration isolation, and plays a role in supporting the movable shovel, the movable shovel is assisted to shovel and clean frozen coal, and the movable shovel shock absorber assists the movable shovel to shovel the frozen coal; when meetting frozen coal pile volume too big removal shovel can't be eradicated or shovel away with it, the spring that removes in the shovel shock absorber will be compressed, makes the removal shovel through the frozen coal pile of unable clearance, and the shake of reduction equipment when unable passing through the barrier obtains good vibration isolation effect, reduces the problem that the breaker was shut down or was climbed.

4. The damping support of the elastic crushing unit offsets most of energy generated by the crusher during working, plays a role in damping, better protects equipment and prolongs the service life of the equipment; the slide block is a medium for connecting the driving trolley assembly, the steel rail and the flexible moving shovel unit, and the number of parts of the whole machine is greatly reduced.

5. The flexible moving shovel unit in the invention has small volume in the vertical direction, and after the tippler pours the coal pile into the hopper bin, the upper part of the tippler hardly has any frozen coal, and the tippler can not influence the work when unloading, can continuously work, and can greatly improve the work efficiency of the tippler.

6. According to the invention, the small-head hammers and the large-head hammers on the movable roller are alternately arranged to form the mixing hammer head, so that frozen coal blocks with different sizes are crushed, the crushing efficiency is improved, and the energy consumption is reduced.

7. The driving trolley assembly is driven by a hydraulic motor, has high power density and strong power, directly drives the roller and has quick power response; the rollers enable the driving trolley assembly to be more stable in the running process, and the stress of the steel rail is more balanced; the driving trolley assembly is compact in overall structure, and under the action of the groove in the bottom of the sliding block, the driving trolley assembly is matched with the steel rail, so that the degree of freedom in the vertical direction of the driving trolley assembly is limited, and the problem that the flexible moving shovel unit stops or climbs is effectively solved.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic structural view of the flexible mobile shovel unit of the present invention;

FIG. 3base:Sub>A isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;

FIG. 3b is an isometric view of the drive carriage assembly of the present invention;

FIG. 4 is a schematic structural view of the drive carriage assembly of the present invention with the slide block omitted;

FIG. 5 is a schematic view of the construction of the elastic crushing unit of the present invention;

FIG. 6 is a schematic view of the structure of the mobile shovel of the present invention;

FIG. 7 is a schematic structural view of the shock mount of the present invention;

FIG. 8 is a schematic view of the structure of the shock absorber for a mobile shovel of the present invention;

FIG. 9 is a schematic view of the slider of the present invention;

fig. 10 is a schematic structural view of the shield assembly of the present invention.

Description of reference numerals:

the flexible movable shovel unit 1, the driving trolley assembly 101, the cleaning shovel 1011, the cover plate 1012, the body 1013, the driving chassis 1014, the driving wheels 1015, the slider 1016, the steel rail groove 10161, the m-shaped groove 10162, the supporting groove 10163, the vertical groove 10164, the bolt hole 10165, the retraction assembly 102, the hydraulic cylinder 1021, the traction bracket 1022, the hydraulic motor 1023, the movable shovel shock absorber 1024, the left end pull ring 10241, the shock absorbing spring 10242, the damper 10243, the right end pull ring 10244, the movable shovel 1025, the top U-shaped fork 10251, the middle U-shaped fork 10252, the elastic crushing unit 2, the shock absorbing support 201, the upper pressure plate 2011, the shock absorbing spring, the fixed support 2013, the bearing support 202, the movable roller 203, the small head hammer 204, the hammer head frame 205, the coupler 206, the motor 207, the speed reducer 208, the shock absorbing support 209, the limiting block 210, the large head hammer 211, the net grate 3, the shield assembly 4, the top sloping plate 401, the side steel plate 402, the rear steel plate 403, the rear counterattack iron block 404, the side counterattack plate 405, the steel rail 5.

Detailed Description

The technical contents, structural features, attained objects and effects of the present invention are explained in detail below with reference to the accompanying drawings.

A frozen coal cleaning equipment for tipper hopper storehouse grate is exclusively used in the position below the tipper hopper, uses with the tipper is supporting, and cleaning equipment volume is less, arranges below the coal-unloading system, on coal bunker or conveyer belt, is used for accomplishing the broken work to freezing coal cinder. As shown in figure 1, the flexible movable shovel unit comprises a flexible movable shovel unit 1, an elastic crushing unit 2, net grates 3, a protective cover assembly 4 and steel rails 5, wherein the elastic crushing unit 2 is located inside the protective cover assembly 4, the steel rails 5 are symmetrically arranged on two sides of the net grates 3, the flexible movable shovel unit 1 and the elastic crushing unit 2 are respectively connected with a first mounting end and a second mounting end of the steel rails 5, and the net grates 3 are arranged at the bottoms of the steel rails 5.

The flexible mobile shovel unit 1, as shown in fig. 2, includes two driving trolley assemblies 101 and a retracting assembly 102, and specifically, the two driving trolley assemblies 101 are symmetrically distributed on two sides of the retracting assembly 102.

The driving trolley assembly 101, as shown in fig. 3 a-3 b, comprises a cleaning shovel 1011, a cover plate 1012, a body 1013, a driving chassis 1014, a hydraulic motor 1023, driving wheels 1015 and a slide block 1016, wherein the cover plate 1012 can resist the falling coal, the cleaning shovel 1011 is located at the inner side of the connecting rail 5 and is used for cleaning the coal slag remained on the rail 5, and shoveling the coal slag into the middle of the mesh grate 3 to ensure that the driving trolley assembly 101 slides smoothly on the rail 5. As shown in fig. 8, a rail groove 10161 is formed in one side of the bottom of the slider 1016, the rail groove 10161 maintains the degree of freedom of the slider 1016 in the front-back direction, and the slider 1016 does not move in the vertical direction, so that the whole flexible moving shovel unit 1 is stable when meeting a large coal pile in the advancing process, does not shake violently, and can solve the problem that the existing equipment climbs up when meeting the large frozen coal pile or the frozen coal block; the bottom of the sliding block 1016 is provided with an M-shaped groove 10162, the top of the sliding block 1016 is provided with a supporting groove 10163, bolt holes 10165 are respectively arranged on two sides of the supporting groove 10163, and the body 1013 and the sliding block 1016 are fixed by bolts; one side of the slider 1016 is provided with a vertical groove 10164.

The cleaning shovel 1011 is positioned in front of the driving chassis 1014, the front end of the cover plate 1012 is connected with the cleaning shovel 1011, the inner side of the cover plate 1012 is provided with an opening for inserting the body 1013, the bottom of the body 1013 is connected with the supporting groove 10163 and is reinforced by angle steel on the contact surface, the driving chassis 1014 is positioned inside the cover plate 1012, the middle part of the driving chassis 1014 is connected with the M-shaped groove 10162, the driving wheels 1015 are symmetrically arranged at the two ends of the driving chassis 1014, the output end of the hydraulic motor 1023 is connected with the driving end of the driving wheel 1015, the hydraulic motor 1023 is positioned outside the driving trolley assembly 101, and a hydraulic station provides power for the hydraulic motor 1023 to drive the driving chassis 1014 so as to prevent the machine from overtravel and derailment; the rail groove 10161 is connected to the rail 5.

The retraction assembly 102 comprises a hydraulic cylinder 1021, a traction support 1022, a movable shovel shock absorber 1024 and a movable shovel 1025, the traction support 1022 is more accurate and efficient in the process of retracting the movable shovel 1025 through the movable shovel shock absorber 1024, the structure of the whole retraction assembly 102 is more compact, the gravity center of the whole retraction assembly is more stable, and the movable shovel 1025 can be retracted accurately and efficiently in an assisting mode. Remove shovel shock absorber 1024, increase the degree of freedom that removes shovel 1025 on the one hand, effectively avoid removing shovel 1025 and block and die, on the other hand reduces the vibrations that flexible removal shovel unit 1, stabilizes flexible removal shovel unit 1's focus, makes flexible removal shovel unit 1 operate more steadily high-efficient.

As shown in fig. 5, a top U-shaped fork 10251 is arranged at the top of the moving shovel 1025, a middle U-shaped fork 10252 is arranged at the middle of the moving shovel 1025, two ends of a traction bracket 1022 are connected with a vertical groove 10164, the top U-shaped fork 10251 of the moving shovel 1025 is connected with the bottom of the body 1013 through a pin, the middle U-shaped fork 10252 of the moving shovel 1025 is connected with one end of a moving shovel shock absorber 1024 through a pin, the other end of the moving shovel shock absorber 1024 is connected with the traction bracket 1022 through a pin, the traction bracket 1022 is driven to lift by a hydraulic cylinder 1021 arranged on the body 1013, the left and right ends of the traction bracket 1022 are matched with the vertical groove 10164 of the sliding block 1016, the moving shovel 1025 is driven to complete the retracting and releasing actions by the expansion of a cylinder rod of the hydraulic cylinder 1021, the cylinder rod of the hydraulic cylinder 1021 drives the traction bracket 1022 to move, the moving shovel shock absorber 1024 jacks up the moving shovel 1025, and the retracting flow of the moving shovel 1025 is completed.

The elastic crushing unit 2, as shown in fig. 4, comprises a damping support 201, a bearing pedestal 202, a movable roller 203, a small-head hammer 204, a hammer head frame 205, a coupler 206, a motor 207, a speed reducer 208, a speed reducer damping support 209, a limit block 210 and a large-head hammer 211, wherein a shock insulation layer is respectively added between the speed reducer 208 and the steel rail 5 and between the bearing pedestal 202 and the steel rail 5 and between the speed reducer damping support 209 and the damping support 201, the shock insulation layer is in flexible connection with the steel rail 5, most energy generated when the crusher works can be offset, so that a shock absorption effect is achieved, the structure of the equipment body 1013 is better protected, the service life of the equipment is prolonged, and power of the elastic crushing unit 2 is provided by the motor 207 and the speed reducer 208.

The damping support 201 is located below the bearing seat 202, the speed reducer damper 209 is located below the speed reducer 208, the damping support 201 and the speed reducer damping support 209 are respectively installed on the steel rail 5 located on two sides of the mesh grate 3, the upper end of the speed reducer damping support 209 is connected with the shell of the speed reducer 208, the output shaft of the motor 207 is connected with one end of the moving roller 203 through the speed reducer 208 and the coupler 206 in a driving mode, the other end of the moving roller 203 is installed on the damping support 201 through the bearing seat 202, the roller body of the moving roller 203 is connected with the small-head hammer 204 and the large-head hammer 211 through the hammer head frame 205, the limiting block 210 is connected with the end of the steel rail 5, and the limiting block 210 prevents the machine from being out of track in an over-range mode and ensures the safe operation of equipment. Preferably, the rotating roller 203, the small hammers 204, the hammer head frame 205 and the large hammers 211 form a rotating body assembly, the hammer head frame is arranged on the roller body of the rotating roller 203, eight rows of small hammers 204 and six rows of large hammers 211 are all mounted on the rotating roller through the hammer head frame to form a mixed hammer head, and the small hammers 204 and the large hammers 211 are arranged in rows in an alternating manner.

The protective cover assembly 4 is formed by splicing steel plates and is arranged above the working area of the movable roller 203 in the elastic crushing unit 2 to prevent the crushed coal from splashing and fully cover the working area of the movable roller, as shown in fig. 9, the protective cover assembly comprises a top inclined plate 401, a side steel plate 402, a rear steel plate 403, a rear impact iron block 404 and a side impact plate 405, the top inclined plate 401 of the protective cover assembly 4 slides the frozen coal pile in the tipper to the area of the mesh grate 3, the side impact plate 405 blocks the splashed frozen coal blocks, and the rear impact iron block 404 secondarily crushes the coal blocks ejected by the crusher to enable the size of the coal blocks to be more in line with the size of mesh grate holes in the mesh grate 3 and smoothly leak down. Side steel plates 402 are provided on the outer sides of both rails 5, side reaction plates 405 are provided on the inner sides of the side steel plates 402, a rear steel plate 403 is provided at the rear portion between the side steel plates 402, rear reaction iron blocks 404 are provided on the inner surface of the rear steel plate 403, and top inclined plates 401 are provided on the top portions of the side steel plates 402.

In a preferred embodiment of the present invention, the moving blade damper 1024, as shown in fig. 7, includes a left end pull ring 10241, a damper spring 10242, a damper 10243 and a right end pull ring 10244, wherein the damper spring 10242 is located outside the damper 10243, two ends of the damper 10243 are respectively connected to an inner end of the left end pull ring 10241 and an inner end of the right end pull ring 10244, an outer end of the left end pull ring 10241 is connected to a middle U-shaped fork 10252 of the moving blade 1025, and an outer end of the right end pull ring 10244 is connected to the towing bracket 1022.

In a preferred embodiment of the present invention, the damping support 201, as shown in fig. 6, includes an upper pressing plate 2011, a damping spring 2012 and a fixing support 2013, and the fixing support 2013 plays an integral supporting role to prevent the damping spring 2012 from being crushed and also plays a limiting role; two ends of the damping spring 2012 are respectively connected with the upper pressure plate 2011 and the mounting end of the fixed support 2013, and the sliding end of the upper pressure plate 2011 is connected with the sliding end of the fixed support 2013.

Specifically, a hydraulic station is installed behind the home position of the flexible moving blade unit 1, and the hydraulic cylinder 1021 and the hydraulic motor 1023 in the flexible moving blade unit 1 are powered by the hydraulic station.

Compared with the traditional equipment, the device adopts a plurality of working procedures to thoroughly crush huge frozen coal piles or frozen coal blocks in the process, and the grate cleaning effect is ideal; structurally, the flexible movable shovel unit and the elastic crusher assembly are adopted to adapt to complicated and changeable working conditions, and the problem that the frozen coal blocks cannot fall into a coal bunker at the mesh grate opening to cause blockage is solved. This device trafficability characteristic is strong, and stability is high, has effectively avoided the device to meet the problem that the big frozen coal pile climbed, supplementary tipper system high efficiency work to satisfy the safe efficient demand of coal transportation.

The frozen coal cleaning equipment for the hopper grate of the tipper of the invention is further described by combining the following embodiments:

the specific working process of the frozen coal cleaning equipment for the hopper bin grate of the tipper provided by the invention is as follows:

firstly, coal is poured into a hopper by a coal conveying carriage under the action of a tipper, frozen coal falls onto a net grate 3 through the hopper, then a flexible moving shovel unit 1 is started, the flexible moving shovel unit 1 firstly shovels the frozen coal piled on the net grate 3 flat, broken coal particles and coal blocks with the size smaller than that of the net grate holes can leak down, and the coal blocks with the size larger than or equal to that of the net grate holes can be clamped in the net grate holes or piled on the net grate 3;

then, the movable shovel 1025 in the flexible movable shovel unit 1 shovels the frozen coal blocks blocked in the mesh grid holes, and when the coal blocks blocked at the mesh grid opening have overlarge volume, the movable shovel shock absorber 1024 connected with the U-shaped fork 10252 in the middle of the movable shovel 1025 plays a role in buffering, so that the device is effectively prevented from being blocked and can smoothly pass through obstacles, meanwhile, the movable shovel shock absorber 1024 reduces the vibration of the flexible movable shovel unit 1, the gravity center of the flexible movable shovel unit 1 is stabilized, and the flexible movable shovel unit 1 can run more stably and efficiently;

for frozen coal blocks with overlarge volumes, the movable shovel 1025 can drive the frozen coal blocks with overlarge volumes to a working area of the elastic crushing unit 2 under the driving of the driving trolley assemblies 101 symmetrically distributed on two sides of the retraction assembly 102 and under the auxiliary action of the cleaning shovel 1011, and in order to prevent the machine from over-travel derailing, the two ends of the steel rail 5 are respectively provided with a limiting block 210 besides stroke control to prevent the machine from exceeding the range, so that the running safety of the equipment is ensured;

after the flexible moving shovel unit 1 finishes corresponding work, the moving shovel 1025 is retracted under the action of a hydraulic cylinder 1021 connected with a traction bracket 1022, and the flexible moving shovel unit 1 returns quickly under the action of a driving wheel 1015 in a hydraulic motor 1023-driven driving trolley assembly 101, so that the screening efficiency of the coal grate is greatly improved;

and finally, starting the elastic crushing unit 2, wherein the elastic crushing unit 2 crushes the frozen coal blocks with overlarge volumes shoveled by the movable shovel 1025, the size of the frozen coal blocks is different, the volume difference is large, the crushing working conditions are complicated and changeable, the small-headed hammers 204 and the large-headed hammers 211 which are distributed on the movable roller 203 in a double-row alternating mode can efficiently crush the overlarge frozen coal blocks, and the vibration is large in the crushing process, so that the vibration of the speed reducer damping support 209 below the speed reducer 208 and the vibration damping support 201 below the bearing seat 202 can be effectively reduced, the parts of the device are prevented from being loosened and damaged, the noise can be reduced to a certain extent, the overlarge frozen coal blocks are smaller than mesh grid holes, and the frozen coal blocks can be conveniently leaked below the mesh grid 3.

The technological process of the device is different from that of the traditional crusher, a multi-pass process is adopted for crushing, the frozen coal blocks poured on the mesh grate 3 by the tipper are crushed thoroughly, the work load of the device is greatly reduced, and the purpose of crushing the frozen coal efficiently is realized.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims (9)

1. The utility model provides a frozen coal clean-up equipment for tipper hopper storehouse grate which characterized in that: the flexible movable shovel unit comprises steel rails, a flexible movable shovel unit and an elastic crushing unit, wherein the steel rails are symmetrically arranged on the left side and the right side of a bin grate, the elastic crushing unit is installed at the front end of the bin grate, and the flexible movable shovel unit which is installed on the steel rails in a sliding mode is arranged at the rear end of the bin grate.

2. The apparatus for removing frozen coal from a hopper grate of a tipper as claimed in claim 1, wherein: the flexible moving shovel unit comprises a driving trolley assembly and a retracting assembly positioned between the two driving trolley assemblies, the driving trolley assembly comprises a cleaning shovel, a cover plate, a driving chassis, a hydraulic motor, driving wheels and a sliding block, the driving chassis is arranged inside the cover plate, the sliding block is arranged in the middle of the driving chassis, the driving wheels are arranged on the driving chassis on the front side and the rear side of the sliding block, the driving wheels are driven by the hydraulic motor, an opening is formed in the inner side of the top of the cover plate, two ends of the body penetrate through the opening and are connected to the tops of the sliding blocks on the two sides, and the cleaning shovel is arranged at the front end of the cover plate;

receive and release the subassembly and include body, pneumatic cylinder, pull the support, remove the shovel shock absorber and remove the shovel, install the body respectively and pull the support between two sliders about, should pull the support and go up and down by the pneumatic cylinder drive of installing on the body, the bottom interval equipartition of body has the removal shovel, removes the installation of shovel and body hinge, installs on removing the shovel and pulls the removal shovel shock absorber that the leg joint was connected.

3. The apparatus for removing frozen coal from a hopper grate of a tipper as claimed in claim 1, wherein: the steel rail traction device is characterized in that a steel rail groove sliding on a steel rail is formed in one side of the bottom of the sliding block, an M-shaped groove is formed in the middle of the bottom surface of the sliding block, a supporting groove is formed in the top of the sliding block, a vertical groove is formed in the inner side surface of the sliding block, the bottom surface of the body is installed in the supporting groove, the middle of the driving chassis is connected with the M-shaped groove, and a traction support is installed in the vertical groove in a sliding mode.

4. The apparatus for removing frozen coal from a hopper grate of a car dumper according to claim 1, wherein: the top of the movable shovel is provided with a top U-shaped fork opening, the middle of the movable shovel is provided with a middle U-shaped fork opening, the top U-shaped fork opening of the movable shovel is hinged to the body, the middle U-shaped fork opening of the movable shovel is connected with one end of the shock absorber, and the other end of the shock absorber is connected with the traction support.

5. The apparatus for removing frozen coal from a hopper grate of a tipper as claimed in claim 1, wherein: the elastic crushing unit comprises a damping support, a bearing seat, a moving roller, a small head hammer, a coupler, a motor, a speed reducer damping support, a limiting block and a big head hammer, wherein the two steel rails are respectively provided with the damping support and the speed reducer damping support, the damping support is provided with the bearing seat, the speed reducer driven by the motor is arranged on the speed reducer damping support, an output shaft of the speed reducer is connected with one end of the moving roller through the coupler, the other end of the moving roller is connected onto the bearing seat, and the small head hammer and the big head hammer are respectively arranged on a roller body of the moving roller.

6. The apparatus for removing frozen coal from a hopper grate of a car dumper according to claim 1, wherein: the elastic crushing unit further comprises a protective cover assembly, the protective cover assembly comprises a top inclined plate, a side steel plate, a rear counterattack iron block and a side counterattack plate, the side steel plate is arranged on the outer sides of the two steel rails, the side counterattack plate is arranged on the inner side face of the side steel plate, the rear side steel plate is arranged at the rear part of the two side steel plates, the rear counterattack iron block is arranged on the rear side steel plate, and the top inclined plate covers the top ends of the two side steel plates.

7. The apparatus for removing frozen coal from a hopper grate of a tipper as claimed in claim 1, wherein: the shock absorber comprises a left end pull ring, a shock absorbing spring, a damper and a right end pull ring, the damper is arranged in the shock absorbing spring in a penetrating mode, and two ends of the damper are connected with the left end pull ring and the right end pull ring which are arranged on the outer side of the shock absorbing spring respectively.

8. The apparatus for removing frozen coal from a hopper grate of a car dumper according to claim 1, wherein: the damping support comprises an upper pressure plate, a damping spring and a fixed support, the upper pressure plate is connected with the fixed support in a sliding mode in the longitudinal direction, and the damping spring is arranged between the upper pressure plate and the fixed support.

9. The apparatus for removing frozen coal from a hopper grate of a tipper as claimed in claim 5, wherein: the small-head hammers and the big-head hammers are respectively arranged on the movable roller in rows at intervals.

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