A coal cleaning device along the line for a mine belt conveyor

Abstract

This invention discloses a coal cleaning device along a mine belt conveyor, comprising: a suspended rail, arranged at the top of the roadway; a cleaning machine, arranged on the suspended rail and capable of moving along the rail direction, used to clean coal falling along both sides of the conveyor; the cleaning machine includes: a supporting frame, arranged below the suspended rail, with a traveling component at the top, and crossbeams fixed to the front and rear ends of the bottom of the supporting frame along the width of the roadway; and a collection and transfer mechanism, having two sets symmetrically arranged on the crossbeams on both sides of the supporting frame, used to collect the fallen coal and transfer it to the conveyor; the collection and transfer mechanism includes: a first transfer component, a second transfer component, and a rotating coal collecting component; the rotating coal collecting component can collect the fallen coal on both sides of the roadway, and the second transfer component and the first transfer component can transfer and transport the collected fallen coal. This invention improves the efficiency of coal cleaning in roadways, reduces labor costs, and improves the economic benefits of coal mines.

Description

Technical Field

[0001] This invention relates to the field of coal mining equipment technology, and more specifically to a coal cleaning device along a mining belt conveyor. Background Technology

[0002] Belt conveyors are an indispensable piece of equipment in coal mine production. A single mine may have several or even dozens of belt conveyors operating simultaneously, ranging in length from hundreds to thousands of meters. During coal transport, high coal moisture content or large volumes often result in large amounts of coal lumps scattering along the sides of the conveyor, wasting coal resources and obstructing pedestrian access. While existing tracked coal cleaners can clean wider conveyor roadways, they can only clean one side, not both simultaneously, and are unsuitable for narrower inner conveyor roadways. For narrower conveyor roadways, the current method involves manual shovel removal of fallen coal lumps onto the conveyor belt for transport to the external coal bunker. This manual method is labor-intensive, inefficient, and poses safety hazards.

[0003] In view of this, it is necessary to improve the existing coal cleaning devices to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to disclose a coal cleaning device along a mine belt conveyor to solve the above-mentioned technical problems. It can clean coal falling on both the inner and outer sides of the conveyor at the same time, and can also crush and clean large pieces of coal. It can clean coal falling in the roadway at any time through remote control, without the need for workers to go to the site or the conveyor to stop, which greatly improves work efficiency, reduces the labor intensity of workers, and improves the economic benefits of coal mines.

[0005] To achieve the above objectives, the present invention provides a coal cleaning device along a mining belt conveyor, comprising:

[0006] Suspended rails are installed at the top of the tunnel;

[0007] A cleaning machine, arranged on the overhead rail and capable of traveling along the rail, is used to clean up coal falling on both sides of the conveyor. The cleaning machine includes:

[0008] A support frame is arranged below the overhead rail, and a walking component for the cleaning machine to move is provided on the top. The bottom front and rear ends of the support frame are respectively fixed with crossbeams for support along the width direction of the alley.

[0009] The collection and transfer mechanism comprises two sets, symmetrically arranged on the crossbeam supports on both sides of the bearing frame, for collecting and transferring the fallen coal to the conveyor. The collection and transfer mechanism includes:

[0010] The first transfer component is horizontally fixed on the crossbeam support along the direction of the conveyor. A deflection frame is arranged above the front end of the first transfer component. The deflection frame has a U-shaped structure and is connected to the first transfer component through a hinge, so that the deflection frame can deflect relative to the first transfer component while the rotation center remains unchanged.

[0011] The second transfer component is arranged above the first transfer component, and its bottom part is housed in the deflection frame and forms a sliding connection with the deflection frame. The rear end of the second transfer component is connected to the first transfer component by a walking wheel. A gear and rack drive component is also provided between the deflection frame and the second transfer component for adjusting the relative position between the second transfer component and the deflection frame. A first telescopic component is also hinged between the first transfer component and the deflection frame for adjusting the deflection angle of the second transfer component.

[0012] A rotating coal collecting assembly is fixed at the front end of the second transfer assembly;

[0013] The cleaning machine can collect the fallen coal on both sides of the roadway through the rotating coal collecting component, and then transfer and transport the collected coal through the second transfer component and the first transfer component.

[0014] As a further improvement of the present invention, a cable hook is provided at the bottom end of the anchor bolt located at the top of the tunnel for hanging cables. A power station and a cable laying mechanism are also provided on the supporting frame. The power station transmits power and signals via cables. The cable laying mechanism includes:

[0015] A cable winding roller is arranged behind the power station, and a first drive unit is provided on its side end for winding and winding cables.

[0016] A cable draping assembly is arranged on the rear side of the support frame and is used to remove cables from cable hooks or hang cables on cable hooks.

[0017] As a further improvement of the present invention, the cable laying assembly includes:

[0018] The first slider is arranged on the rear side of the support frame and can slide horizontally along the width direction of the tunnel. The first slider and the support frame are driven by a lateral telescopic component.

[0019] A vertical telescopic component is fixedly mounted on the first slider;

[0020] A fork-shaped component is fixed to the top movable end of the vertical telescopic assembly and is used for picking up and putting down cables.

[0021] The first visual sensor is fixedly arranged on one side of the fork-shaped member.

[0022] As a further improvement of the present invention, the first transfer component includes a belt conveyor and a first baffle fixed on both sides of the belt conveyor. The rear end of the first baffle is fixedly provided with a first coal unloading guide plate for guiding the falling coal to the conveyor belt of the conveyor.

[0023] As a further improvement of the present invention, the second transfer assembly includes a belt conveyor and second baffles fixed on both sides of the belt conveyor;

[0024] The rear end of the second baffle is hinged to a second coal unloading guide plate, and a telescopic hydraulic cylinder is arranged between the second coal unloading guide plate and the second baffle to adjust the tilt angle of the second coal unloading guide plate.

[0025] As a further improvement of the present invention, the conveyor belt of the second transfer assembly is provided with a plurality of third baffles arranged parallel to each other along the length direction and along the width direction, and the rotating coal collecting assembly includes:

[0026] The bucket is fixed at the front end of the second transfer assembly. The bucket is U-shaped and is surrounded by a bottom plate and two side plates. The bottom plate is an arc shape with low sides and high middle, and the front end has a comb-tooth structure. The rear end is tangent to the movement trajectory of the third baffle.

[0027] A rotating shaft is arranged inside the bucket, and its two ends pass through the two side plates respectively and are fitted with a second drive unit outside the side plates. Mounting plates are fixedly sleeved at both ends of the rotating shaft and located inside the side plates.

[0028] Three sets of irregularly shaped blades are arranged symmetrically around the center line of the rotating shaft on the outside of the shaft. Each set of irregularly shaped blades includes:

[0029] The irregular blade has multiple blades arranged in a comb-like pattern and parallel to the axial direction of the rotating shaft. The two ends of the irregular blade are provided with connecting arms. The connecting arms are connected to the mounting plate by a pin and form a rotatable connection. During rotation, the irregular blade can intersect with the front comb teeth of the base plate.

[0030] As a further improvement of the present invention, the rotating coal collecting assembly further includes a buffer assembly arranged between the connecting arm and the rotating shaft, for providing limiting and buffering for the rotation of the shaped cutter, including:

[0031] A limiting stop is fixed on the rotating shaft;

[0032] A positioning pin is vertically fixed to the inner side of the connecting arm;

[0033] A limiting shaft is located between the limiting block and the positioning pin, with one end passing through the limiting block and having a limiting part at the end, and the other end being fixed with a bushing that rotatably engages with the positioning pin.

[0034] A buffer spring is sleeved on the limiting shaft, and its two ends abut against the limiting block and the bushing, respectively.

[0035] During the coal shoveling process, the irregularly shaped blade can rotate relative to the rotating shaft, the limiting shaft slides relative to the limiting block, and the buffer spring contracts under force.

[0036] As a further improvement of the present invention, the front end of the bearing frame is also provided with a crushing mechanism for crushing large pieces of coal falling on the ground on both sides of the roadway.

[0037] As a further improvement of the present invention, the crossbeam support includes a fixed section located in the center and fixedly connected to the bearing frame, an extension section located on both sides of the bearing frame and axially extending and retracting with the fixed section, and a second telescopic component connected to the same side of the fixed section and the extension section. The collection and transfer mechanism is fixed on the extension section, and the distance between the two sets of collection and transfer mechanisms is adjusted by the second telescopic component.

[0038] As a further improvement of the present invention, the front end of the second baffle is also provided with a bracket, and a second vision sensor is configured on the bracket for monitoring the quantity and size of coal falling on the roadway surface.

[0039] Compared with the prior art, the beneficial effects of the present invention are:

[0040] (1) A coal cleaning device along a mine belt conveyor, compared with the existing tracked coal cleaning device, achieves mobile cleaning by setting a rail on the top of the roadway, does not occupy the roadway floor space, has no requirements on the size of the roadway floor, and can achieve simultaneous cleaning of coal falling inside and outside the conveyor by setting collection and transfer mechanisms on both sides of the bearing frame; through the first transfer component, the second transfer component and the rotating coal collection component, the mechanized cleaning of coal falling on both sides of the roadway is realized, so as to collect the coal falling on the roadway ground onto the coal mine conveyor. Compared with manual coal cleaning, it has high cleaning efficiency, reduces manual labor intensity and labor costs, reduces safety hazards, and does not require crossing the conveyor to enter the inside of the roadway for coal cleaning;

[0041] (2) The present invention realizes the cable laying and cable hooking at the top of the roadway by the cooperation of the cable laying mechanism and the cable hook, which provides a continuous power supply for the cleaning machine, avoids the mess of cables in the roadway, and improves the safety and flexibility of roadway cleaning construction.

[0042] (3) This invention uses a rotating coal collecting assembly consisting of a bucket, a shaped cutter group, a rotating shaft, and a second drive unit, in conjunction with a conveyor belt equipped with a third baffle in the second transfer assembly, to clean coal falling from the roadway surface to the rear end of the bucket, and then the third baffle carries it to the first transfer assembly, thus cleaning the coal falling from the roadway surface. This cleaning method does not interfere with the operation of the mining belt conveyor, improving the production efficiency of the coal mine. At the same time, the rotating coal collecting assembly is also equipped with a buffer assembly, which allows the shaped cutter to rotate relative to the rotating shaft during the coal shoveling process. The limiting shaft and the limiting block slide relative to each other, and the buffer spring contracts under force, reducing the impact force on the shaped cutter during the coal shoveling process and protecting the rotating coal collecting assembly. In addition, this invention also includes a crusher set at the front end of the bearing frame, which can crush large pieces of coal, reducing the processing pressure of the rotating coal collecting assembly, ensuring the cleaning efficiency of coal falling from the roadway surface on both sides, and improving the economic benefits of the coal mine. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the structure of a coal cleaning device along a mine belt conveyor in various states in the roadway according to the present invention. Figure a is a schematic diagram of the cleaning machine in the non-working state, Figure b is a schematic diagram of the cleaning machine in the cleaning working state, and Figure c is a schematic diagram of the cleaning machine in the crushing and cleaning working state.

[0044] Figure 2 This is a schematic diagram of the cleaning machine in a coal-falling cleaning device along a mining belt conveyor according to the present invention;

[0045] Figure 3 For the present invention Figure 1 The side view of the cleaning machine shown in Figure C;

[0046] Figure 4 This is a schematic diagram of the collection and transfer mechanism in a coal-falling cleaning device along a mining belt conveyor according to the present invention.

[0047] Figure 5 This is a schematic diagram of the rotating coal collecting assembly in a coal cleaning device along a mining belt conveyor according to the present invention.

[0048] Figure 6 This is a schematic diagram of the cable laying assembly in a coal cleaning device along a mining belt conveyor according to the present invention.

[0049] In the diagram: 11. Bearing frame; 12. First transfer assembly; 13. Second transfer assembly; 14. Rotating coal collection assembly; 15. Power station; 17. Support; 18. Crushing mechanism; 111. Crossbeam support; 112. Traveling assembly; 120. First baffle; 121. Deflection frame; 122. Hinge; 130. Second baffle; 131. Traveling wheel; 132. First telescopic assembly; 141. Side plate; 142. Base plate; 143. Rotating shaft; 144. Mounting plate; 145. Irregularly shaped cutter; 161. Coil 162. Cable laying roller; 171. Second vision sensor; 1201. First coal unloading guide plate; 1301. Second coal unloading guide plate; 1302. Third baffle; 1303. Telescopic cylinder; 1421. Comb structure; 1451. Connecting arm; 1461. Limiting block; 1463. Positioning pin; 1464. Buffer spring; 1622. Vertical telescopic assembly; 1623. Fork-shaped component; 1624. First vision sensor; 14621. Limiting part; 14622. Bushing. Detailed Implementation

[0050] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent changes or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0051] Please refer to Figures 1 to 6 The present invention illustrates a specific embodiment of a coal cleaning device along a mining belt conveyor.

[0052] A coal-falling cleaning device along a mine belt conveyor includes: a suspended rail, arranged at the top of the roadway; a cleaning machine, arranged on the suspended rail and capable of moving along the rail direction, for cleaning coal falling on both sides of the conveyor; the cleaning machine includes: a supporting frame 11, arranged below the suspended rail, with a traveling assembly 112 on top for the cleaning machine to move; and crossbeam supports 111 fixed at the front and rear ends of the bottom of the supporting frame 11 along the width of the roadway; and a collection and transfer mechanism, having two sets symmetrically arranged on the crossbeam supports 111 on both sides of the supporting frame 11, for collecting and transferring the fallen coal. The cable is transferred to the conveyor. A cable hook is located at the bottom of the anchor bolt at the top of the roadway for hanging the cable. A power station 15 and a cable laying mechanism are also provided on the supporting frame 11. The power station 15 transmits power and signals via cable. The cable laying mechanism includes: a cable winding roller 161, located behind the power station 15, with a first drive unit (specifically a drive motor) on its side for winding and unwinding the cable; and a cable laying assembly 162, located behind the supporting frame 11, for removing the cable from the cable hook or hanging the cable on the cable hook. The cleaning device of this application can remotely control the cleaning of coal in the roadway without requiring workers to be present or the mining belt conveyor to be stopped.

[0053] The cable placement assembly 162 includes: a first slider, arranged on the rear side of the support frame 11, capable of horizontal sliding along the width of the aisle; the first slider and the support frame 11 are driven by a lateral telescopic assembly; a vertical telescopic assembly 1622, fixedly mounted on the first slider; a fork-shaped member 1623, fixedly mounted on the top movable end of the vertical telescopic assembly 1622, used for picking up and placing cables; and a first vision sensor 1624, fixedly arranged on one side of the fork-shaped member 1623. The first vision sensor 1624 monitors the position of the cable, providing a range of motion for the lateral telescopic assembly and the vertical telescopic assembly 1622, facilitating remote control of cable placement and removal. It should be understood that the telescopic assembly in this application can be a pneumatic cylinder or a hydraulic cylinder.

[0054] The collection and transfer mechanism includes: a first transfer component 12, horizontally fixed to the crossbeam support 111 along the direction of the conveyor; a deflection frame 121 is arranged above the front end of the first transfer component 12, the deflection frame 121 has a U-shaped structure and is connected to the first transfer component 12 via a hinge 122, so that the deflection frame 121 can deflect relative to the first transfer component 12 while the center of rotation remains unchanged; and a second transfer component 13, arranged above the first transfer component 12, with its bottom portion housed within the deflection frame 121, and connected to the deflection frame 121. 21 forms a sliding connection. The rear end of the second transfer component 13 is connected to the first transfer component 12 by a walking wheel 131. A gear and rack drive assembly is also provided between the deflection frame 121 and the second transfer component 13 to adjust the relative position between the second transfer component 13 and the deflection frame 121. The gear and rack drive assembly includes: a rack arranged outside the second transfer component 13, a gear arranged inside the deflection frame 121 and cooperating with the rack drive, and a drive motor of the drive gear arranged outside the deflection frame 121.

[0055] A first telescopic component 132 is also provided between the first transfer component 12 and the deflection frame 121 to adjust the deflection angle of the second transfer component 13. Specifically, both ends of the first telescopic component 132 are hinged to the first transfer component 12 and the deflection frame 121. A rotating coal collecting component 14 is fixed to the front end of the second transfer component 13. The cleaning machine can collect the coal falling on both sides of the roadway through the rotating coal collecting component 14, and transfer and transport the collected coal through the second transfer component 13 and the first transfer component 12.

[0056] The first transfer assembly 12 includes a belt conveyor and first baffles 120 fixed on both sides of the belt conveyor. A first coal unloading guide plate 1201 is fixedly provided at the rear end of the first baffle 120 for guiding the falling coal onto the conveyor belt of the conveyor. The second transfer assembly 13 includes a belt conveyor and second baffles 130 fixed on both sides of the belt conveyor. A second coal unloading guide plate 1301 is hinged to the rear end of the second baffle 130. A telescopic cylinder 1303 is arranged between the second coal unloading guide plate 1301 and the second baffle 130 for adjusting the tilt angle of the second coal unloading guide plate 1301.

[0057] The conveyor belt of the second transfer assembly 13 has several third baffles 1302 arranged parallel to each other along the length direction and along the width direction. The rotating coal collecting assembly 14 includes: a bucket, fixed to the front end of the second transfer assembly 13, the bucket being enclosed in a U-shape by a bottom plate 142 and two side plates 141, the bottom plate 142 being an arc shape with lower sides and higher middle, and the front end having a comb-tooth structure 1421, the rear end being tangent to the movement trajectory of the third baffles 1302; a rotating shaft 143, arranged inside the bucket, with both ends passing through the side plates 141 and a second drive unit connected to the outside of the side plates 141, the second drive unit being a drive motor, and mounting plates 144 fixedly fitted at both ends of the rotating shaft 143 and located inside the side plates 141; and three sets of irregularly shaped cutters 145 arranged on the rotating shaft 143. The outer side of 43 and symmetrically arranged with respect to the center line of the rotating shaft 143, each set of special-shaped cutters 145 includes: special-shaped cutter 145, having multiple cutters arranged in a comb-like pattern and arranged parallel to the axial direction of the rotating shaft 143. The two ends of the special-shaped cutter 145 are provided with connecting arms 1451. The connecting arms 1451 and the mounting plate 144 are connected by a pin and form a rotatable connection. During the rotation, the special-shaped cutter 145 can intersect with the front comb teeth of the bottom plate 142. The coal falling from the ground can be scooped into the bucket by the special-shaped cutter 145 and slide down the slope of the rear end of the bucket bottom plate 142 onto the third baffle 1302 of the second transfer component 13. Under the transmission of the conveyor belt, it is lifted through the second unloading guide plate 1301 and finally falls onto the conveyor belt of the first transfer component 12.

[0058] The rotating coal collecting assembly 14 also includes a buffer assembly arranged between the connecting arm 1451 and the rotating shaft 143, which is used to limit and buffer the rotation of the shaped cutter 145. The buffer assembly includes: a limiting block 1461, fixed on the rotating shaft 143; a positioning pin 1463, vertically fixed on the inner side of the connecting arm 1451; a limiting shaft, located between the limiting block 1461 and the positioning pin 1463, with one end passing through the limiting block 1461 and having a limiting part 14621 at the end, and a bushing 14622 fixed at the other end that rotatably engages with the positioning pin 1463; and a buffer spring 1464, sleeved on the limiting shaft, with both ends abutting against the limiting block 1461 and the bushing 14622 respectively. During the coal shoveling process, the shaped cutter 145 can rotate relative to the rotating shaft 143, the limiting shaft and the limiting block 1461 slide relative to each other, and the buffer spring 1464 contracts under force.

[0059] The front end of the supporting frame 11 is also equipped with a crushing mechanism 18, which is used to crush large pieces of coal falling on the ground on both sides of the roadway. The front end of the second baffle 130 is also equipped with a support 17, on which a second vision sensor 171 is configured to monitor the quantity and size of coal falling on the roadway ground.

[0060] The crossbeam support 111 includes a fixed section located in the center and fixedly connected to the bearing frame 11, an extension section located on both sides of the bearing frame 11 and axially extending and retracting with the fixed section, and a second telescopic assembly connected to the same side of the fixed section and the extension section. The collection and transfer mechanism is fixed on the extension section. The distance between the two sets of collection and transfer mechanisms is adjusted by the second telescopic assembly to adapt to different widths of mining conveyor belts, and to clean and collect the coal falling on both sides of the conveyor belt, thus expanding the applicability of the cleaning machine.

[0061] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A coal cleaning device along a mining belt conveyor, characterized in that, include: Suspended rails are installed at the top of the tunnel; A cleaning machine, arranged on the overhead rail and capable of traveling along the rail, is used to clean up coal falling on both sides of the conveyor. The cleaning machine includes: A support frame is arranged below the overhead rail, and a walking component for the cleaning machine to move is provided on the top. The bottom front and rear ends of the support frame are respectively fixed with crossbeams for support along the width direction of the alley. The collection and transfer mechanism comprises two sets, symmetrically arranged on the crossbeam supports on both sides of the supporting frame, for collecting and transferring the fallen coal to the conveyor. The collection and transfer mechanism includes: The first transfer component is horizontally fixed on the crossbeam support along the direction of the conveyor. A deflection frame is arranged above the front end of the first transfer component. The deflection frame has a U-shaped structure and is connected to the first transfer component through a hinge, so that the deflection frame can deflect relative to the first transfer component while the rotation center remains unchanged. The second transfer component is arranged above the first transfer component, and its bottom part is housed in the deflection frame and forms a sliding connection with the deflection frame. The rear end of the second transfer component is connected to the first transfer component by a walking wheel. A gear and rack drive component is also provided between the deflection frame and the second transfer component for adjusting the relative position between the second transfer component and the deflection frame. A first telescopic component is also provided between the first transfer component and the deflection frame for adjusting the deflection angle of the second transfer component. A rotating coal collecting assembly is fixed at the front end of the second transfer assembly; The cleaning machine can collect the fallen coal on both sides of the roadway through the rotating coal collecting component, and then transfer and transport the collected coal through the second transfer component and the first transfer component.

2. The coal cleaning device along a mining belt conveyor as described in claim 1, characterized in that, A cable hook is provided at the bottom end of the anchor bolt located at the top of the tunnel for suspending cables. A power station and a cable laying mechanism are also provided on the supporting frame. The power station transmits power and signals via cables. The cable laying mechanism includes: A cable winding roller is arranged behind the power station, and a first drive unit is provided on its side end for winding and winding cables. A cable draping assembly is arranged on the rear side of the support frame and is used to remove cables from cable hooks or hang cables on cable hooks.

3. A coal cleaning device along a mining belt conveyor as described in claim 2, characterized in that, The cable laying assembly includes: The first slider is arranged on the rear side of the support frame and can slide horizontally along the width direction of the tunnel. The first slider and the support frame are driven by a lateral telescopic component. A vertical telescopic component is fixedly mounted on the first slider; A fork-shaped component is fixed to the top movable end of the vertical telescopic assembly and is used for picking up and putting down cables. The first visual sensor is fixedly arranged on one side of the fork-shaped member.

4. A coal cleaning device along a mining belt conveyor as described in claim 1, characterized in that, The first transfer assembly includes a belt conveyor and a first baffle fixed on both sides of the belt conveyor. A first coal unloading guide plate is fixed at the rear end of the first baffle to guide the falling coal onto the conveyor belt of the conveyor.

5. A coal cleaning device along a mining belt conveyor as described in claim 4, characterized in that, The second transfer assembly includes a belt conveyor and second baffles fixed on both sides of the belt conveyor; The rear end of the second baffle is hinged to a second coal unloading guide plate, and a telescopic hydraulic cylinder is arranged between the second coal unloading guide plate and the second baffle to adjust the tilt angle of the second coal unloading guide plate.

6. A coal cleaning device along a mining belt conveyor as described in claim 5, characterized in that, The second transfer assembly has several third baffles arranged parallel to each other along its length and spaced apart along its width on its conveyor belt. The rotary coal collecting assembly includes: The bucket is fixed at the front end of the second transfer assembly. The bucket is U-shaped and is surrounded by a bottom plate and two side plates. The bottom plate is an arc shape with low sides and high middle, and the front end has a comb-tooth structure. The rear end is tangent to the movement trajectory of the third baffle. A rotating shaft is arranged inside the bucket, and its two ends pass through the two side plates respectively and are fitted with a second drive unit outside the side plates. Mounting plates are fixedly sleeved at both ends of the rotating shaft and located inside the side plates. Three sets of irregularly shaped blades are arranged symmetrically around the center line of the rotating shaft on the outside of the shaft. Each set of irregularly shaped blades includes: The irregular blade has multiple blades arranged in a comb-like pattern and parallel to the axial direction of the rotating shaft. The two ends of the irregular blade are provided with connecting arms. The connecting arms are connected to the mounting plate by a pin and form a rotatable connection. During rotation, the irregular blade can intersect with the front comb teeth of the base plate.

7. A coal cleaning device along a mining belt conveyor as described in claim 6, characterized in that, The rotating coal collecting assembly further includes a buffer assembly arranged between the connecting arm and the rotating shaft, used to limit and buffer the rotation of the shaped cutter, including: A limiting stop is fixed on the rotating shaft; A positioning pin is vertically fixed to the inner side of the connecting arm; A limiting shaft is located between the limiting block and the positioning pin, with one end passing through the limiting block and having a limiting part at the end, and the other end being fixed with a bushing that rotatably engages with the positioning pin. A buffer spring is sleeved on the limiting shaft, and its two ends abut against the limiting block and the bushing, respectively. During the coal shoveling process, the irregularly shaped blade can rotate relative to the rotating shaft, the limiting shaft slides relative to the limiting block, and the buffer spring contracts under force.

8. A coal cleaning device along a mining belt conveyor as described in claim 7, characterized in that, The front end of the supporting frame is also equipped with a crushing mechanism for crushing large pieces of coal falling on both sides of the roadway.

9. A coal cleaning device along a mining belt conveyor as described in claim 1, characterized in that, The crossbeam support includes a fixed section located in the center and fixedly connected to the bearing frame, an extension section located on both sides of the bearing frame and axially extending and retracting with the fixed section, and a second telescopic component connected to the same side of the fixed section and the extension section. The collection and transfer mechanism is fixed on the extension section, and the distance between the two sets of collection and transfer mechanisms is adjusted by the second telescopic component.

10. A coal cleaning device along a mining belt conveyor as described in claim 8, characterized in that, The front end of the second baffle is also provided with a bracket, on which a second vision sensor is configured to monitor the quantity and size of coal falling on the roadway surface.

Images