Underground coal mine automatic feeding system

Abstract

The invention relates to the technical field of coal mining, in particular to an underground coal mine automatic feeding system which comprises horizontal conveying mechanisms, inclined conveying mechanisms, a coal containing box and a loading mechanism, the inclined conveying mechanisms are obliquely arranged in a coal mine, the horizontal conveying mechanisms are arranged on the front side and the rear side of each inclined conveying mechanism, and the two horizontal conveying mechanisms are symmetrically arranged front and back; the two sides of the coal containing box are arranged on the two horizontal conveying mechanisms in a lap joint mode respectively, the left ends and the right ends of the two horizontal conveying mechanisms are connected through fixing plates, and a loading mechanism is arranged on the fixing plate on the right side. Stacked coal mines are automatically shoveled and boxed through the loading mechanism, the loading mechanism can gradually move along with gradual reduction of the quantity of the stacked coal mines, and scattered coal mines can be pushed and piled while moving, so that the loading mechanism intermittently and continuously shovels and boxed the coal mines, manual shoveling is not needed, and the loading efficiency is improved. And self-gravity limiting can be conducted on the coal containing box through the limiting assembly, and the stability in the conveying process is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mining, and specifically to an automatic feeding system for underground coal mines. Background Art

[0002] A coal mine refers to an underground mine used to mine coal resources. The working environment in a coal mine is usually very harsh, and workers need to work in dark, humid, and airless conditions. In order to reduce labor costs, improve work efficiency, and also reduce the exposure time of personnel in dangerous environments, coal is transported from the mining face to the ground by using conveyor belts, rail vehicles or other automated transportation tools.

[0003] Most of the existing automatic feeding systems require manual labor to pack the coal into boxes and then transport it out of the mine by the conveying mechanism. It is impossible to perform continuous work of automatic packing and transportation of the excavated and piled coal, which reduces work efficiency. In addition, the packed coal needs to be fixed manually before transportation, and it is impossible to automatically limit and fix the packed coal for transportation, which increases the complexity of operation. Summary of the invention

[0004] Technical problem to be solved: The automatic feeding system for underground coal mines provided by the present invention can solve the problems pointed out in the above background technology.

[0005] Technical solution: To achieve the above purpose, the present invention adopts the following technical solution: an automatic feeding system for an underground coal mine, comprising a horizontal transmission mechanism, an inclined transmission mechanism, a coal box and a loading mechanism, wherein the inclined transmission mechanism is arranged obliquely in the coal mine, and horizontal transmission mechanisms are arranged on both the front and rear sides of the inclined transmission mechanism, and the two horizontal transmission mechanisms are arranged symmetrically front and rear, and the two sides of the coal box are respectively placed on the two horizontal transmission mechanisms, and the left and right ends of the two horizontal transmission mechanisms are connected by a fixed plate, and a loading mechanism is arranged on the fixed plate on the right side;

[0006] The horizontal transmission mechanism includes a displacement component, a displacement component is installed on the fixed plate on the left side, and the fixed plates on the left and right sides are connected by rectangular baffles symmetrically arranged front and back, and the opposite surfaces of the rectangular baffles are each provided with a transmission belt component 1;

[0007] The inclined transmission mechanism includes a trapezoidal support plate, which is symmetrically arranged between the two horizontal transmission mechanisms, and the lower end surface of the trapezoidal support plate is fixedly installed on the ground in the coal mine, and waist-shaped baffles are installed on the inclined surface of the trapezoidal support plate, and a second transmission belt assembly is arranged between the two waist-shaped baffles;

[0008] The loading mechanism includes side plates, which are symmetrically installed on the front and rear sides of the right end face of the fixed plate, a mounting shaft is arranged between the two side plates close to the fixed plate, both ends of the mounting shaft are connected to the corresponding side plates, a shoveling assembly is provided on the rotating sleeve of the outer wall of the mounting shaft, and angle rotation assemblies are arranged on the opposite surfaces of the two side plates, and the front and rear sides of the shoveling assembly cooperate with the corresponding angle rotation assemblies, and a pushing block is arranged between the two side plates and below the shoveling assembly, and the pushing block is a trapezoidal structure and is arranged with an inclined surface toward the right.

[0009] Furthermore, the transmission belt component 1 includes a transmission shaft, and the transmission shafts are symmetrically installed on the opposite surfaces of the rectangular baffle for rotation. The outer walls of the transmission shafts are fixedly sleeved with pulleys, and the outer walls of the two pulleys are jointly sleeved with a transmission track. One end of one of the transmission shafts is connected to the output shaft of the transmission motor, and the fixed end of the transmission motor is installed on the rectangular baffle through the motor seat. The structure of the transmission belt component 2 is the same as that of the transmission belt component 1, and the two ends of the transmission shaft in the transmission belt component 2 are connected to the corresponding waist-shaped baffles.

[0010] Furthermore, a plurality of overhead grooves are evenly arranged on the outer wall of the transmission track in the transmission belt assembly 1, and the overhead grooves on the front and rear sides correspond to each other one by one, and the overhead grooves are U-shaped structures.

[0011] Furthermore, the outer wall of the transmission track in the second transmission belt assembly is evenly installed with limit assemblies, and the distance between two adjacent limit assemblies is the same as the distance between two adjacent overhead grooves opened on the transmission track.

[0012] Furthermore, the limit assembly includes a receiving plate, which is mounted on the outer wall of the transmission track in the transmission belt assembly 2, and a plurality of rectangular grooves are evenly provided on the upper surface of the receiving plate near the transmission track from front to back, and a restoring spring is vertically installed in the rectangular groove, and a trapezoidal pressure block is installed at one end of the restoring spring away from the rectangular groove, and the trapezoidal pressure block is slidably arranged in the rectangular groove, and a long groove is provided on the upper surface of the receiving plate away from the transmission track, and a limit plate is slidably installed in the long groove, and a plurality of extrusion springs are evenly installed on the lower end surface of the limit plate, and the lower end surface of the extrusion spring is connected to the lower end surface of the long groove, and circular through holes are provided at the bottom of the long groove corresponding to the extrusion spring and the bottom end of the rectangular groove, and the lower ends of the trapezoidal pressure blocks are connected to steel ropes, and the other ends of the steel ropes pass through the circular through holes and are connected to the limit plate, and the lower end surface of the receiving plate is rotatably installed with a roller shaft at the position of the circular through hole, and the steel rope is tightly attached to the outer wall of the roller shaft.

[0013] Furthermore, the displacement assembly includes a drive box, which is mounted on the left end surface of the fixed plate on the left side, a drive wheel is mounted on the lower end of the drive box, the drive box controls the rotation of the drive wheel, and a plurality of driven rollers are linearly arranged on the lower end of the rectangular baffle. Furthermore, the shoveling assembly includes a ring sleeve ear seat, the left part of the ring sleeve ear seat is rotatably sleeved on the outer wall of the mounting shaft, a multi-section telescopic rod is mounted on the right end of the ring sleeve ear seat, a sliding rod is rotatably installed from front to back on the outer wall of the multi-section telescopic rod near the telescopic end, a sleeve rod is fixedly sleeved on the outer wall of the sliding rod located on the front and rear sides of the multi-section telescopic rod, and the sleeve rod is installed on the end away from the multi-section telescopic rod, and a cover material part is installed on the upper ends of the two sleeve rods.

[0014] The cam is provided with a toothed groove which is arranged on the outer wall of the sliding rod and the toothed groove is provided with a toothed ring which is matched with the inner wall of the ratchet groove. A plurality of placement grooves are evenly arranged on the outer wall of the toothed ring. A toothed plate is obliquely installed in the placement groove through a pin shaft. The other side of the toothed plate is connected to the bottom of the placement groove through a limit spring. A magnetic block is installed at the lower end of the toothed plate. A magnetic block matching the magnetic block is installed at the corresponding position of the bottom of the placement groove and the magnetic block. A short rack is installed on the side plate on the left side of the inclined section and the vertical section of the guide groove. A long rack is installed on the opposite surface of the side plate below the horizontal section on the upper side of the guide groove. The short rack and the long rack have the same spacing as the guide groove. A gear is installed at the corresponding position of the outer wall of the sliding rod and the short rack and the long rack.

[0015] Furthermore, the cover material component includes a base plate, which is fixedly mounted on the upper ends of the two sleeve rods. The upper end of the base plate is evenly provided with multiple slide grooves from front to back, and an electric slider is slidably arranged in the slide groove. A push cover plate is commonly installed on the upper ends of the two electric sliders, and the push cover plate is a trapezoidal structure with a thickness gradually increasing from top to bottom.

[0016] Furthermore, a rotating plate is provided at a position where the vertical section groove in the guide groove communicates with the upper horizontal section, and the rotating plate is installed at a corner position of the right side plate of the vertical section through a torsion spring.

[0017] Beneficial effects:

[0018] 1. The loading mechanism automatically scoops up the accumulated coal and packs it into boxes. As the amount of accumulated coal gradually decreases, the displacement component drives the loading mechanism to gradually move toward the accumulated coal, so that the loading mechanism can always scoop up the coal. At the same time, the pushing block can push and pile up the scattered coal, which is convenient for shoveling again without manual shoveling. The limiting component can limit the coal box by its own gravity, which improves the stability during the transmission process.

[0019] 2. The sliding rod is driven to move in the guide groove by a multi-section telescopic rod. During the movement of the sliding rod, the gears are meshed with the short-segment rack and the long-segment rack on the right side in turn, so that the angle of the bucket gradually turns to horizontal when it moves from bottom to top. After the cover covers the bucket, it is turned over for loading. At the same time, the driving wheel cooperates with the driven roller to drive the loading mechanism to move gradually to the right intermittently, so that the bucket always maintains a specified distance from the coal mine, which is convenient for quick shoveling and intermittent continuous shoveling and loading without manual operation.

[0020] 3. When the coal box moves to the receiving plate, the trapezoidal pressure block is squeezed. Under the elastic force of the squeezing spring, the limit plate is driven to extend from the long groove to limit the right side of the coal box. At the same time, the waist-shaped baffle plate limits the front and rear sides of the coal box to ensure stability during transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention.

[0022] Figure 2 For the present invention Figure 1 A magnified view of.

[0023] Figure 3 It is a structural schematic diagram of the charging mechanism of the present invention.

[0024] Figure 4 The present invention is a schematic diagram of the structure of the multi-section telescopic rod, the sliding rod, the sleeve rod and the bucket.

[0025] Figure 5 It is a front cross-sectional view of the present invention.

[0026] Figure 6 For the present invention Figure 5 B is an enlarged view of .

[0027] Figure 7 For the present invention Figure 5 C magnified view.

[0028] Figure 8 For the present invention Figure 5 DD section view.

[0029] Fig. 9 It is a cross-sectional view of the sliding rod of the present invention cooperating with the limiting sliding block, the gear ring, the gear plate, the limiting spring, the magnetic block and the magnetic attraction block.

[0030] In the figure: 1. Horizontal transmission mechanism; 11. Displacement assembly; 111. Drive box; 112. Drive wheel; 113. Driven roller; 12. Rectangular baffle; 13. Transmission belt assembly 1; 131. Transmission shaft; 132. Pulley; 133. Transmission track; 134. Transmission motor; 14. Overhead slot; 2. Inclined transmission mechanism; 21. Trapezoidal support plate; 22. Waist-shaped baffle; 23. Transmission belt assembly 2; 24. Limiting assembly; 241. Receiver plate; 242. Restoring spring; 243. Trapezoidal pressure block; 244. Limiting plate; 245. Extrusion spring; 246. Steel rope; 3. Coal box; 4. Fixed plate ; 5. Loading mechanism; 51. Side plate; 52. Mounting shaft; 53. Shoveling assembly; 531. Ring sleeve ear seat; 532. Multi-section telescopic rod; 533. Sliding rod; 534. Sleeve rod; 535. Bucket; 54. Angle rotation assembly; 541. Guide groove; 542. Limiting slider; 543. Gear ring; 544. Gear plate; 545. Limiting spring; 546. Magnetic block; 547. Magnetic block; 548. Short section rack; 549. Long section rack; 5410. Gear; 5411. Rotating plate; 55. Pushing block; 56. Covering member; 561. Base plate; 562. Electric slider; 563. Pushing cover plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1 , Figure 5 , Figure 8 The present invention provides a technical solution: an automatic feeding system for an underground coal mine, comprising a horizontal transmission mechanism 1, an inclined transmission mechanism 2, a coal box 3 and a loading mechanism 5, wherein the inclined transmission mechanism 2 is arranged obliquely in the coal mine, and horizontal transmission mechanisms 1 are arranged on both sides of the inclined transmission mechanism 2, and the two horizontal transmission mechanisms 1 are arranged symmetrically front and back, and the two sides of the coal box 3 are respectively placed on the two horizontal transmission mechanisms 1, and the left and right ends of the two horizontal transmission mechanisms 1 are connected by a fixed plate 4, and a loading mechanism 5 is arranged on the fixed plate 4 on the right side; when working, the accumulated coal is shoveled up and sealed by the loading mechanism 5, and then the loaded coal is driven by the horizontal transmission mechanism 1 to move intermittently, and at the same time, the inclined transmission mechanism 2 moves intermittently to transport the coal out.

[0033] See also Figure 1The horizontal transmission mechanism 1 includes a displacement assembly 11, which is installed on the fixed plate 4 on the left side. The fixed plates 4 on the left and right sides are connected by rectangular baffles 12 symmetrically arranged in the front and rear directions. The opposite surfaces of the rectangular baffles 12 are provided with a transmission belt assembly 13; the displacement assembly 11 includes a drive box 111, which is installed on the left end surface of the fixed plate 4 on the left side. A driving wheel 112 is installed at the lower end of the drive box 111. The drive box 111 controls the rotation of the driving wheel 112. A plurality of driven rollers 113 are linearly arranged at the lower end of the rectangular baffles 12. During operation, as the accumulated coal is shoveled and loaded, the amount of accumulated coal gradually decreases. The external drive in the drive box 111 drives the driving wheel 112 to rotate, thereby driving the plurality of driven rollers 113 to rotate, so that the horizontal transmission mechanism 1 gradually drives the loading mechanism 5 to move to the right, which is convenient for shoveling and loading.

[0034] See also Figure 1 The inclined transmission mechanism 2 includes a trapezoidal support plate 21, which is symmetrically arranged between the two horizontal transmission mechanisms 1. The lower end surface of the trapezoidal support plate 21 is fixedly installed on the ground in the coal mine. The inclined surface of the trapezoidal support plate 21 is installed with a waist-shaped baffle plate 22, and a transmission belt assembly 23 is arranged between the two waist-shaped baffle plates 22; the transmission belt assembly 13 includes a transmission shaft 131, and the opposite surfaces of the rectangular baffle plates 12 are symmetrically rotated with the transmission shaft 131. The outer wall of the transmission shaft 131 is fixedly sleeved with a pulley 132, and the outer surface of the two pulleys 132 The wall is jointly sleeved with a transmission crawler 133, one end of a transmission shaft 131 is connected to the output shaft of a transmission motor 134, and the fixed end of the transmission motor 134 is installed on the rectangular baffle 12 through a motor seat. The structure of the transmission belt assembly 23 is the same as that of the transmission belt assembly 13, and the two ends of the transmission shaft 131 in the transmission belt assembly 23 are connected to the corresponding waist-shaped baffle 22. The outer wall of the transmission crawler 133 in the transmission belt assembly 13 is uniformly provided with a plurality of overhead grooves 14, and the overhead grooves 14 on the front and rear sides correspond to each other, and the overhead grooves 14 are U-shaped structures. The outer wall of the transmission crawler 133 in the transmission belt assembly 23 is uniformly installed with a limit assembly 24, and the spacing between two adjacent limit assemblies 24 is the same as the spacing between two adjacent overhead grooves 14 opened on the transmission crawler 133. The handles on both sides of the coal box 3 are placed on the overhead slot 14 for horizontal limit placement, and the transmission motor 134 in the conveyor belt assembly 13 is started. Through the transmission shaft 131 and the transmission crawler 133, the transmission motor 134 can drive the transmission crawler 133 to move intermittently, so that the horizontal transmission mechanism 1 drives the coal box 3 to move to the left. Similarly, when the transmission motor 134 in the conveyor belt assembly 23 is started, it drives the coal box 3 to move obliquely to the upper left to discharge the material.

[0035] See also Figure 1 , Figure 6In this embodiment, the limit assembly 24 includes a receiving plate 241, which is mounted on the outer wall of the transmission track 133 in the transmission belt assembly 23. A plurality of rectangular grooves are evenly formed from front to back at a position close to the transmission track 133 on the upper end surface of the receiving plate 241. Restoration springs 242 are vertically installed in the rectangular grooves. A trapezoidal pressure block 243 is installed at one end of the restoring spring 242 away from the rectangular groove. The trapezoidal pressure block 243 is slidably arranged in the rectangular groove. A long strip groove is formed at a position close to the transmission track 133 on the upper end surface of the receiving plate 241. A limit plate 244 is slidably installed in the long groove, and a plurality of extrusion springs 245 are evenly installed on the lower end surface of the limit plate 244. The lower end surface of the extrusion spring 245 is connected to the lower end surface of the long groove. Circular through holes are provided at the bottom of the long groove and the corresponding position of the extrusion spring 245 and the bottom end of the rectangular groove. The lower end of the trapezoidal pressure block 243 is connected to a steel rope 246, and the other end of the steel rope 246 passes through the circular through hole and is connected to the limit plate 244. The lower end surface of the receiving plate 241 is rotatably installed with a roller shaft at the position of the circular through hole, and the steel rope 246 is tightly attached to the outer wall of the roller shaft. During operation, the handles on both sides of the coal box 3 are placed on the overhead groove 14. As the transmission track 133 in the conveyor belt assembly 13 moves, the coal box 3 is driven to move horizontally. When it moves to the right side of the inclined transmission mechanism 2, the inclined transmission mechanism 2 moves intermittently, so that the coal box 3 moves to the left onto the receiving plate 241. The coal box 3 gradually moves toward the side of the conveyor belt assembly 23 on the receiving plate 241 and squeezes the trapezoidal pressure block 243 at the same time, so that the trapezoidal pressure block 243 presses the restoring spring 242 downward into the rectangular groove. At this time, the steel rope 246 loses its tensioning force, and under the elastic force of the squeezing spring 245, the limiting plate 244 is driven to extend out of the long groove to limit the right side of the coal box 3. At the same time, the waist-shaped baffle 22 limits the front and rear sides of the coal box 3 to ensure stability during transmission.

[0036] See also Figure 2 , Figure 3 , Figure 4 In this embodiment, the loading mechanism 5 includes a side plate 51, and the side plate 51 is symmetrically installed on the front and rear of the right end surface of the fixed plate 4. A mounting shaft 52 is arranged between the two side plates 51, close to the fixed plate 4. Both ends of the mounting shaft 52 are connected to the corresponding side plates 51. A shoveling assembly 53 is rotatably sleeved on the outer wall of the mounting shaft 52. An angle rotation assembly 54 is arranged on the opposite surfaces of the two side plates 51. The front and rear sides of the shoveling assembly 53 cooperate with the corresponding angle rotation assembly 54. A pushing block 55 is arranged between the two side plates 51 and below the shoveling assembly 53. The pushing block 55 is a trapezoidal structure and is arranged on the right side with an inclined surface. In the process of the displacement assembly 11 driving the horizontal transmission mechanism 1 to gradually move to the right, the remaining coal that is difficult to shovel can be pushed and piled up, which is convenient for shoveling next time.

[0037] See also Figure 3 The shoveling assembly 53 includes a ring-shaped ear seat 531, the left part of the ring-shaped ear seat 531 is rotatably sleeved on the outer wall of the mounting shaft 52, and a multi-section telescopic rod 532 is installed on the right end of the ring-shaped ear seat 531. The outer wall of the multi-section telescopic rod 532 near the telescopic end is rotatably penetrated from front to back by a sliding rod 533, and the outer walls of the sliding rod 533 on the front and rear sides of the multi-section telescopic rod 532 are fixedly sleeved with sleeve rods 534, and one end of the sleeve rod 534 away from the multi-section telescopic rod 532 is jointly installed on the bucket 535, and a covering member 56 is jointly installed on the upper ends of the two sleeve rods 534.

[0038] See also Figure 3 , Fig. 9 The angle rotation component 54 includes a guide groove 541. The opposite surfaces of the two side plates 51 are provided with a guide groove 541. The guide groove 541 is a horizontally placed "P"-shaped structure. A limit slider 542 is slidably arranged in the guide groove 541. The end surface of the limit slider 542 close to the sliding rod 533 is provided with a ratchet groove. The outer wall of the sliding rod 533 located in the ratchet groove is sleeved with a toothed ring 543. The outer wall of the toothed ring 543 cooperates with the inner wall of the ratchet groove. The outer wall of the toothed ring 543 is evenly provided with a plurality of placement grooves. A toothed plate 544 is obliquely installed in the placement groove through a pin shaft. The other side of the toothed plate 544 is connected with the limit spring 545. The bottom of the placement slot is connected, and the lower end of the tooth plate 544 is installed with a magnetic block 546. The position corresponding to the magnetic block 546 at the bottom of the placement slot is installed with a magnetic block 547 that matches the magnetic block 546. The side plate 51 on the left side of the inclined section and the vertical section of the guide slot 541 is installed with a short section rack 548. The opposite surface of the side plate 51 below the upper horizontal section of the guide slot 541 is installed with a long section rack 549. The short section rack 548 and the long section rack 549 are at the same distance from the guide slot 541. The outer wall of the sliding rod 533 and the corresponding positions of the short section rack 548 and the long section rack 549 are sleeved and installed with a gear 5410. A rotating plate 5411 is arranged at the position where the vertical section slot in the guide slot 541 communicates with the upper horizontal section. The rotating plate 5411 is installed at the corner position of the side plate 51 on the right side of the vertical section through a torsion spring.

[0039] When working, the initial state of the bucket 535 is tilted, and the sliding rod 533 is driven to move in the guide groove 541 by extending the multi-section telescopic rod 532. During the movement, the position of the bucket 535 gradually moves up to load the accumulated coal into the bucket 535. As the multi-section telescopic rod 532 is extended, the sliding rod 533 continues to slide in the guide groove 541. When it moves to the position of the short-segment rack 548 on the right, the gear 5410 meshes with the short-segment rack 548 on the right and rotates counterclockwise, and the sliding rod 533 drives the sleeve The rod 534 and the toothed ring 543 also rotate accordingly, so that the bucket 535 changes from an inclined state to a horizontal state. The sleeve rod 534 rotated at an angle is locked by the toothed plate 544, the spring and the ratchet groove, so that the bucket 535 always remains in a horizontal state. Then, the cover member 56 is covered on the bucket 535 for sealing. When the sliding rod 533 moves to the highest point of the guide groove 541, the multi-section telescopic rod 532 begins to shrink. During the shrinkage of the multi-section telescopic rod 532, the sliding rod 533 gradually moves to the left along the guide groove 541 During the movement, the rotating plate 5411 is pressed to rotate the left side of the rotating plate 5411 box, blocking the vertical section of the guide groove 541 to ensure the smooth horizontal movement of the sliding rod 533. Then the gear 5410 rotates in coordination with the long rack 549 again, and the sliding rod 533 drives the bucket 535 filled with coal to turn 180 degrees. Then the cover 56 opens the bucket 535, allowing the coal to fall into the coal box 3. At this time, the magnetic suction block 547 at the bottom of the placement slot is started by the external drive control, and the magnetic suction block 54 7. The magnetic block 546 is sucked and tightened to move the tooth plate 544 into the placement groove, and the clockwise rotation is no longer limited. After the coal mine is poured, the multi-section telescopic rod 532 is extended again to drive the sliding rod 533 to move to the right and rotate to a horizontal state. Due to the obstruction of the rotating plate 5411, the sliding rod 533 will move downward along the vertical section of the guide groove 541. During the movement, the gear 5410 engages and rotates with the short section of the rack 548 on the left, and the bucket 535 is rotated to restore it to its original inclined state, and then the above operation is repeated to fill the coal box 3.

[0040] See also Figure 7 The cover member 56 includes a base plate 561, which is fixedly mounted on the upper ends of the two sleeve rods 534. The upper end of the base plate 561 is evenly provided with a plurality of slide grooves from front to back, and an electric slider 562 is slidably arranged in the slide groove. A push cover plate 563 is installed on the upper ends of the two electric sliders 562. The push cover plate 563 is a trapezoidal structure with a gradually increasing thickness from top to bottom. When working, when the bucket 535 rotates to a horizontal state, the electric slider 562 drives the push cover plate 563 to gradually move to the right. Through the structure of the push cover plate 563, the excess coal can be scraped and pushed down in the process of sliding to cover the opening of the bucket 535.

[0041] During the specific operation, the handles on both sides of the coal box 3 are placed on the overhead slot 14. The initial state of the bucket 535 is tilted. The multi-section telescopic rod 532 is extended to drive the sliding rod 533 to move in the guide slot 541. During the movement, the position of the bucket 535 gradually moves up to load the accumulated coal into the bucket 535. As the multi-section telescopic rod 532 is extended, the sliding rod 533 continues to slide in the guide slot 541. When it moves to the position of the short-segment rack 548 on the right, the gear 5410 meshes with the short-segment rack 548 on the right and rotates counterclockwise, and the sliding rod 533 drives The movable sleeve rod 534 and the gear ring 543 also rotate accordingly, so that the bucket 535 changes from an inclined state to a horizontal state. The sleeve rod 534 after the angle rotation is locked by the tooth plate 544, the spring and the ratchet groove, so that the bucket 535 always maintains a horizontal state. Then the electric slider 562 drives the push cover plate 563 to gradually move to the right to cover the opening of the bucket 535. Through the structure of the push cover plate 563, the excess coal can be scraped and pushed down in the process of sliding to cover the opening of the bucket 535. When the sliding rod 533 moves to the highest point of the guide groove 541, the multi-section telescopic rod 532 The multi-section telescopic rod 532 begins to retract. During the retraction process, the sliding rod 533 gradually moves to the left along the guide groove 541. During the movement, the rotating plate 5411 is pressed, so that the rotating plate 5411 rotates to the left, and the vertical section of the guide groove 541 is blocked to ensure that the sliding rod 533 can move horizontally smoothly. Then the gear 5410 rotates in coordination with the long rack 549 again, and the bucket 535 filled with coal is driven by the sliding rod 533 to turn 180 degrees. Then the cover 56 opens the bucket 535, so that the coal falls into the coal box 3. At this time, the magnetic suction at the bottom of the slot is placed. Block 547 is started by external drive control, and magnetic block 547 sucks magnetic block 546 to move tooth plate 544 into the placement slot, and no longer limits the clockwise rotation. After the coal mine is poured, the multi-section telescopic rod 532 is extended again to drive the sliding rod 533 to move rightward and rotate to a horizontal state. Due to the obstruction of the rotating plate 5411, the sliding rod 533 will move downward along the vertical section of the guide slot 541. During the movement, the gear 5410 meshes and rotates with the short rack 548 on the left, rotating the bucket 535 to restore it to the original tilted state, and then repeat the above operation to fill the coal box 3;Then, the transmission motor 134 of the transmission belt assembly 13 is started, and the transmission shaft 131 cooperates with the transmission crawler 133, so that the transmission motor 134 can drive the transmission crawler 133 to move intermittently. As the transmission crawler 133 in the transmission belt assembly 13 moves, the coal box 3 is driven to move horizontally. When it moves to the right side of the inclined transmission mechanism 2, the transmission belt assembly 23 drives it to move intermittently, so that the coal box 3 moves to the left onto the receiving plate 241. The coal box 3 gradually moves to one side of the transmission belt assembly 23 on the receiving plate 241, and at the same time squeezes the trapezoidal pressure block 243, so that the trapezoidal pressure block 243 presses the restoring spring 242 downward into the rectangular groove. At this time, the steel rope 246 loses its tensioning force, and the spring 245 is squeezed. Under the action of force, the limiting plate 244 is driven to extend from the long groove to limit the right side of the coal box 3. At the same time, the waist-shaped baffle 22 limits the front and rear sides of the coal box 3 to ensure stability during the transmission process. The horizontal transmission mechanism 1 and the inclined transmission mechanism 2 cooperate with intermittent movement to transport the coal out; as the accumulated coal is shoveled and loaded, the amount of accumulated coal gradually decreases, and the external drive in the driving box 111 drives the driving wheel 112 to rotate, thereby driving multiple driven rollers 113 to rotate, so that the horizontal transmission mechanism 1 gradually drives the loading mechanism 5 to move to the right, which is convenient for shoveling and loading. In addition, during the gradual movement of the horizontal transmission mechanism 1 to the right through the pushing block 55, the remaining coal that is difficult to shovel can be pushed and piled up, which is convenient for shoveling next time. ;

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding system for underground coal mines, comprising a horizontal transmission mechanism (1), an inclined transmission mechanism (2), a coal storage box (3), a fixed plate (4) and a charging mechanism (5), characterized in that: The inclined transmission mechanism (2) is arranged obliquely in the coal mine, and horizontal transmission mechanisms (1) are arranged on both sides of the inclined transmission mechanism (2). The two horizontal transmission mechanisms (1) are arranged symmetrically in front and back. The two sides of the coal box (3) are respectively placed on the two horizontal transmission mechanisms (1). The left and right ends of the two horizontal transmission mechanisms (1) are connected by a fixing plate (4), and a loading mechanism (5) is arranged on the fixing plate (4) on the right side. The horizontal transmission mechanism (1) comprises a displacement assembly (11), the displacement assembly (11) is installed on the left fixed plate (4), the left and right fixed plates (4) are connected by rectangular baffles (12) symmetrically arranged front and back, and the opposite surfaces of the rectangular baffles (12) are each provided with a transmission belt assembly 1 (13); The inclined transmission mechanism (2) comprises a trapezoidal support plate (21), which is symmetrically arranged front and back between the two horizontal transmission mechanisms (1), the lower end surface of the trapezoidal support plate (21) is fixedly installed on the ground in the coal mine, waist-shaped baffles (22) are installed on the inclined surface of the trapezoidal support plate (21), and a second transmission belt assembly (23) is arranged between the two waist-shaped baffles (22); The loading mechanism (5) comprises a side plate (51), the side plate (51) being symmetrically mounted on the right end face of the fixed plate (4) in the front and rear directions, a mounting shaft (52) being arranged between the two side plates (51) and close to the fixed plate (4), the two ends of the mounting shaft (52) being connected to the corresponding side plates (51), a shoveling assembly (53) being rotatably sleeved on the outer wall of the mounting shaft (52), the opposite surfaces of the two side plates (51) being arranged with an angle rotation assembly (54), the front and rear sides of the shoveling assembly (53) being matched with the corresponding angle rotation assembly (54), a pushing block (55) being arranged between the two side plates (51) and below the shoveling assembly (53), the pushing block (55) being a trapezoidal structure and being arranged with an inclined surface facing the right side.

2. The automatic feeding system for underground coal mines according to claim 1, characterized in that: The transmission belt assembly 1 (13) comprises a transmission shaft (131), and the opposite surfaces of the rectangular baffle (12) are both symmetrically rotatably mounted with the transmission shaft (131), and the outer wall of the transmission shaft (131) is fixedly sleeved with a pulley (132), and the outer walls of the two pulleys (132) are jointly sleeved with a transmission crawler (133), one end of one of the transmission shafts (131) is connected to the output shaft of a transmission motor (134), and the fixed end of the transmission motor (134) is mounted on the rectangular baffle (12) through a motor seat. The structure of the transmission belt assembly 2 (23) is the same as that of the transmission belt assembly 1 (13), and the two ends of the transmission shaft (131) in the transmission belt assembly 2 (23) are connected to the corresponding waist-shaped baffle (22).

3. The automatic feeding system for underground coal mines according to claim 2, characterized in that: The outer wall of the transmission crawler belt (133) in the transmission belt assembly (13) is evenly provided with a plurality of overhead grooves (14), the overhead grooves (14) on the front and rear sides correspond to each other one by one, and the overhead grooves (14) are U-shaped structures.

4. The automatic feeding system for underground coal mines according to claim 2, characterized in that: The outer wall of the transmission crawler (133) in the second transmission belt assembly (23) is evenly installed with limit assemblies (24), and the distance between two adjacent limit assemblies (24) is the same as the distance between two adjacent overhead grooves (14) opened on the transmission crawler (133).

5. The automatic feeding system for underground coal mines according to claim 4, characterized in that: The limiting assembly (24) comprises a receiving plate (241), the receiving plate (241) being mounted on the outer wall of the transmission crawler (133) in the second transmission belt assembly (23), a plurality of rectangular grooves being evenly provided from front to back at a position close to the transmission crawler (133) on the upper end surface of the receiving plate (241), a restoring spring (242) being vertically installed in each of the rectangular grooves, a trapezoidal pressure block (243) being installed at one end of the restoring spring (242) away from the rectangular groove, the trapezoidal pressure block (243) being slidably arranged in the rectangular groove, a long strip groove being provided at a position close to the transmission crawler (133) on the upper end surface of the receiving plate (241), the long strip groove being provided at a position close to the transmission crawler (133) A limit plate (244) is slidably installed in the groove, and a plurality of extrusion springs (245) are evenly installed on the lower end surface of the limit plate (244). The lower end surface of the extrusion spring (245) is connected to the lower end surface of the long groove. The bottom of the long groove and the corresponding position of the extrusion spring (245) and the bottom end of the rectangular groove are both provided with round through holes. The lower end of the trapezoidal pressure block (243) is connected to a steel rope (246), and the other end of the steel rope (246) passes through the round through hole and is connected to the limit plate (244). The lower end surface of the receiving plate (241) is rotatably installed with a roller shaft at the position of the round through hole, and the steel rope (246) is tightly attached to the outer wall of the roller shaft.

6. The automatic feeding system for underground coal mines according to claim 1, characterized in that: The displacement assembly (11) comprises a drive box (111), the drive box (111) being mounted on the left end surface of the fixed plate (4) on the left side, a drive wheel (112) being mounted on the lower end of the drive box (111), the drive box (111) controlling the rotation of the drive wheel (112), and a plurality of driven rollers (113) being linearly arranged on the lower end of the rectangular baffle (12).

7. The automatic feeding system for underground coal mines according to claim 1, characterized in that: The shoveling assembly (53) comprises an annular sleeve ear seat (531), the left part of the annular sleeve ear seat (531) is rotatably sleeved on the outer wall of the mounting shaft (52), a multi-section telescopic rod (532) is installed on the right end of the annular sleeve ear seat (531), a sliding rod (533) is installed through the outer wall of the multi-section telescopic rod (532) near the telescopic end from front to back, and sleeve rods (534) are fixedly sleeved on the outer walls of the sliding rods (533) at the front and rear sides of the multi-section telescopic rod (532), and one end of the sleeve rod (534) away from the multi-section telescopic rod (532) is jointly installed on the shovel bucket (535), and a covering member (56) is jointly installed on the upper ends of the two sleeve rods (534).

8. The automatic feeding system for underground coal mines according to claim 7, characterized in that: The angle rotation assembly (54) comprises a guide groove (541), and the opposite surfaces of the two side plates (51) are provided with a guide groove (541), and the guide groove (541) is in a horizontal "P"-shaped structure. A limit slider (542) is slidably arranged in the guide groove (541), and the end surface of the limit slider (542) close to the sliding rod (533) is provided with a ratchet groove, and the outer wall of the sliding rod (533) located in the ratchet groove is sleeved with a toothed ring (543), and the outer wall of the toothed ring (543) matches the inner wall of the ratchet groove. The outer wall of the toothed ring (543) is evenly provided with a plurality of placement grooves, and a toothed plate (544) is obliquely installed in the placement groove through a pin shaft, and the other side of the toothed plate (544) is connected to the placement groove through a limit spring (545). The bottom of the groove is connected, the lower end of the tooth plate (544) is installed with a magnetic block (546), and a magnetic attraction block (547) matching with the magnetic block (546) is installed at the position corresponding to the magnetic block (546) at the bottom of the placement groove. A short-segment rack (548) is installed on the side plate (51) located on the left side of the inclined section and the vertical section of the guide groove (541), and a long-segment rack (549) is installed on the opposite surface of the side plate (51) below the upper horizontal section of the guide groove (541). The short-segment rack (548) and the long-segment rack (549) have the same spacing with the guide groove (541), and a gear (5410) is sleeved and installed at the outer wall of the sliding rod (533) and the corresponding position of the short-segment rack (548) and the long-segment rack (549).

9. The automatic feeding system for underground coal mines according to claim 7, characterized in that: The cover material member (56) comprises a base plate (561), the base plate (561) is fixedly mounted on the upper ends of the two sleeve rods (534), a plurality of slide grooves are evenly arranged on the upper end of the base plate (561) from front to back, an electric slider (562) is slidably arranged in the slide groove, a push cover plate (563) is commonly mounted on the upper ends of the two electric sliders (562), and the push cover plate (563) is a trapezoidal structure with a thickness gradually increasing from top to bottom.

10. The automatic feeding system for underground coal mines according to claim 8, characterized in that: A rotating plate (5411) is provided at a position where the vertical section groove and the upper horizontal section communicate with each other in the guide groove (541), and the rotating plate (5411) is installed at a corner position of the right side plate (51) of the vertical section through a torsion spring.

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