Underground coal briquette crusher

Abstract

The utility model relates to the technical field of crushers, in particular to an underground coal briquette crusher which comprises a shell, two crushing rollers are rotatably mounted in the shell, two ends of each crushing roller extend out of the shell and are respectively provided with a belt pulley, and a guide vibration mechanism is arranged at the upper part of the shell; the material guiding and vibrating mechanism comprises a plurality of movable rods rotationally installed on the two opposite inner walls in the shell, the movable rods are fixedly sleeved with material guiding plates, three grooves are formed in the side wall of the shell, vertically-arranged sliding rods are fixedly installed in the three grooves, lifting knocking blocks are slidably connected to the sliding rods in a sleeving mode, and the lifting knocking blocks are fixedly connected with the movable rods in a sleeving mode. The upper surface of the lifting knocking block is close to the inner wall of the upper portion of the groove, and the shell is provided with a driving extrusion assembly capable of enabling the multiple movable rods to rotate. According to the utility model, the coal mine falling from the same position can be guided, so that the coal mine falling from the same position can be flatly laid on the crushing roller.

Description

Technical Field

[0001] The utility model relates to the technical field of crushers, in particular to an underground coal block crusher. Background Art

[0002] In coal mining, crusher is an important part. Its function is to crush the raw coal mined from the working face into particle size that can meet the requirements of the belt conveyor coal bunker.

[0003] The patent with publication number CN212915812U in the prior art discloses an underground coal block crusher used in coal mining. The coal block crusher can buffer the feeding through an adjusting plate, a buffer plate, a crushing roller, a pulverizing roller and a crushing plate. At the same time, the coal block can be first crushed by the crushing roller and then pulverized by the pulverizing roller. However, in actual use, the coal block is generally poured vertically into the crusher at a fixed position for crushing. The vertical pouring at a fixed position is easy to accumulate on one side above the crushing roller. At this time, there is no coal block above other parts of the crushing roller, which can easily cause the crushing roller to be partially in an idling state, affecting the processing efficiency of the coal block. Utility Model Content

[0004] In order to solve the above problems, the utility model provides an underground coal block crusher to solve the problem that when loading coal at a fixed position, it is not easy to lay flat on the crushing roller, thereby affecting the processing efficiency of the coal mine.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0006] An underground coal crusher comprises a housing, two crushing rollers are rotatably mounted inside the housing, both ends of the two crushing rollers extend outside the housing and are respectively mounted with pulleys, and a material guide vibration mechanism is arranged on the upper part of the housing;

[0007] The material guide vibration mechanism includes a plurality of movable rods rotatably mounted on two opposite inner walls of the shell, a material guide plate is fixedly sleeved on the plurality of movable rods, three grooves are opened on the side wall of the shell, vertically arranged sliding rods are fixedly installed in the three grooves, and lifting and knocking blocks are slidably sleeved on the sliding rods, and the upper surface of the lifting and knocking blocks is close to the upper inner wall of the groove, and a driving extrusion assembly capable of rotating the plurality of movable rods is arranged on the shell;

[0008] The driving extrusion assembly includes a fixed box installed on the side wall of the shell, and multiple movable rods rotate and penetrate the side wall of the shell and the side wall of the fixed box. One ends of the multiple movable rods extend into the fixed box and are respectively installed with gears. A motor is installed outside the fixed box. A reciprocating threaded rod is rotatably installed in the fixed box, one end of the reciprocating threaded rod extends to the outside of the fixed box and is installed on the output shaft of the motor. A rack is threadedly sleeved on the reciprocating threaded rod, and a guide rod is fixedly installed inside the fixed box. The rack is slidably sleeved on the guide rod, and multiple gears are meshed with the rack. An elastic extrusion unit capable of moving the three lifting and knocking blocks downward is provided on the fixed box, and the elastic extrusion unit is installed in cooperation with the reciprocating threaded rod. Elastic elements are provided at the bottom of the three lifting and knocking blocks.

[0009] The elastic extrusion unit includes two fixed blocks installed at the bottom of the fixed box, and the sides of the two fixed blocks close to each other are jointly rotatably installed with a rotating rod, and the rotating rod is installed in cooperation with the reciprocating threaded rod through a transmission unit. Three annular blocks are fixedly sleeved on the rotating rod, and the outer walls of the circumferential sides of the three annular blocks are fixedly installed with extrusion blocks, and the extrusion blocks can drive the lifting and knocking blocks to descend.

[0010] The transmission unit comprises a first sprocket mounted on the end of the reciprocating threaded rod away from the motor, a second sprocket is mounted on the end of the rotating rod away from the motor, and a chain is mounted on the first sprocket and the second sprocket in a tensioned and meshed manner.

[0011] The elastic element comprises a spring installed at the bottom of the lifting and knocking block, and the other end of the spring is installed on the bottom inner wall of the groove.

[0012] Protective plates are installed on the top and bottom of the three lifting and striking blocks, and the protective plates can close the grooves.

[0013] One end of the three lifting and knocking blocks extending out of the groove is provided with a movable hole, and two rollers are rotatably installed in the movable holes.

[0014] The beneficial effects of the utility model are as follows:

[0015] The utility model can make the rack move back and forth through the motor, the reciprocating threaded rod and the guide rod. The reciprocating movement of the rack will make multiple gears rotate back and forth. The reciprocating rotation of multiple gears will make multiple movable rods rotate back and forth. The reciprocating rotation of multiple movable rods will make multiple guide plates swing back and forth. The reciprocating swing of the guide plates will make the lower outlet between the two guide plates move back and forth, thereby guiding the coal falling at the same position, so that the coal falling at the same position is spread flat on the crushing roller, avoiding the coal accumulation on one side above the crushing roller and causing other parts of the crushing roller to be in an idling state.

[0016] The utility model can make the reciprocating threaded rod drive the rotating rod to rotate through the first sprocket, the second sprocket and the chain. The rotation of the rotating rod will cause the extrusion block to squeeze the roller through the annular block, thereby causing the lifting and knocking block to move downward. When the extrusion block is not in contact with the roller, the roller is not subjected to force. At this time, the lifting and knocking block will quickly reset under the action of the spring and collide with the inner wall of the groove, thereby causing the shell to vibrate, thereby avoiding the coal from being stuck on the guide plate and allowing the crushed coal to fall better. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model from a first viewing angle;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model from a second viewing angle;

[0019] Figure 3 It is a partially cutaway three-dimensional structural schematic diagram of the utility model;

[0020] Figure 4 yes Figure 3 Enlarged structural diagram at A in the middle.

[0021] Figure numerals: 1. Shell; 2. Crushing roller; 3. Movable rod; 4. Guide plate; 5. Fixed box; 6. Gear; 7. Motor; 8. Reciprocating threaded rod; 9. Rack; 10. Fixed block; 11. Rotating rod; 12. First sprocket; 13. Second sprocket; 14. Chain; 15. Ring block; 16. Extrusion block; 17. Lifting and knocking block; 18. Spring; 19. Protective plate. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still fall within the scope of protection of the present application.

[0023] Figure 1~Figure 4 It is the best embodiment of the utility model, and the following Figure 1 ~Attached Figure 4 The utility model is further described.

[0024] An underground coal crusher comprises a housing 1, wherein two crushing rollers 2 are rotatably mounted inside the housing 1, both ends of the two crushing rollers 2 extend outside the housing 1 and are respectively mounted with pulleys, and a material guide vibration mechanism is arranged on the upper part of the housing 1

[0025] The material guiding vibration mechanism includes a plurality of movable rods 3 rotatably mounted on two opposite inner walls of the shell 1, a material guiding plate 4 is fixedly sleeved on the plurality of movable rods 3, three grooves are opened on the side wall of the shell 1, vertically arranged sliding rods are fixedly mounted in the three grooves, and a lifting and knocking block 17 is slidably sleeved on the sliding rod. Under normal conditions, the upper surface of the lifting and knocking block 17 is close to the upper inner wall of the groove, and a driving extrusion assembly capable of rotating the plurality of movable rods 3 is provided on the shell 1.

[0026] In this solution, by setting the movable rod 3 and the guide plate 4, it is convenient to guide the coal mines falling at the same position. By setting the lifting and knocking block 17, the shell 1 can be vibrated during the guiding process to prevent the coal mines from getting stuck on the guide plate 4, and at the same time, the crushed coal mines can fall better. Specifically, when in use, the movable rod 3 can be reciprocated by driving the extrusion assembly, and the reciprocating rotation of the movable rod 3 will cause the guide plate 4 to swing back and forth, thereby guiding the coal mines. At the same time, driving the extrusion assembly will cause the lifting and knocking block 17 to first drop, and then quickly reset, thereby colliding with the inner wall of the groove, thereby causing the shell 1 to vibrate, preventing the coal mines from getting stuck on the guide plate 4, and at the same time, allowing the crushed coal mines to fall better.

[0027] The driving extrusion assembly includes a fixed box 5 installed on the side wall of the shell 1, and multiple movable rods 3 rotate and penetrate the side wall of the shell 1 and the side wall of the fixed box 5. One ends of multiple movable rods 3 extend into the fixed box 5 and are respectively installed with gears 6. A motor 7 is installed on the outside of the fixed box 5. A reciprocating threaded rod 8 is rotatably installed in the fixed box 5. One end of the reciprocating threaded rod 8 extends to the outside of the fixed box 5 and is installed on the output shaft of the motor 7. A rack 9 is threadedly sleeved on the reciprocating threaded rod 8. A guide rod is fixedly installed inside the fixed box 5, and the rack 9 is slidably sleeved on the guide rod. Multiple gears 6 are meshed with the rack 9. An elastic extrusion unit capable of moving the three lifting and knocking blocks 17 downward is provided on the fixed box 5. The elastic extrusion unit is installed in cooperation with the reciprocating threaded rod 8, and elastic elements are provided at the bottom of the three lifting and knocking blocks 17.

[0028] In this solution, by setting a fixed box 5, a gear 6, a motor 7, a reciprocating threaded rod 8 and a rack 9, the movable rod 3 can be reciprocated. Specifically, the output of the motor 7 will cause the reciprocating threaded rod 8 to rotate, the rotation of the reciprocating threaded rod 8 will cause the rack 9 to move back and forth, the reciprocating movement of the rack 9 will cause the multiple gears 6 to reciprocate, the reciprocating rotation of the multiple gears 6 will cause the multiple movable rods 3 to reciprocate, the reciprocating rotation of the multiple movable rods 3 will cause the multiple guide plates 4 to swing back and forth, the reciprocating swing of the guide plates 4 will cause the lower outlet between the two guide plates 4 to move back and forth, and then guide the coal mines falling at the same position.

[0029] The elastic extrusion unit includes two fixed blocks 10 installed at the bottom of the fixed box 5, and the sides of the two fixed blocks 10 close to each other are jointly rotatably installed with a rotating rod 11, and the rotating rod 11 is installed in cooperation with the reciprocating threaded rod 8 through a transmission unit. Three annular blocks 15 are fixedly sleeved on the rotating rod 11, and the outer walls of the circumferential sides of the three annular blocks 15 are fixedly installed with extrusion blocks 16, which can drive the lifting and knocking blocks 17 to descend.

[0030] In this solution, by providing the fixed block 10, the rotating rod 11, the annular block 15 and the squeezing block 16, it is convenient to make the three lifting and knocking blocks 17 move downward at the same time. Specifically, the rotation of the rotating rod 11 will make the annular block 15 rotate, and the rotation of the annular block 15 will make the squeezing block 16 move in a circle. When the squeezing block 16 contacts the lifting and knocking block 17, the squeezing block 16 continues to move and squeezes the lifting and knocking block 17, so that the three lifting and knocking blocks 17 move downward at the same time. When the lifting and knocking blocks 17 are rotated and separated, the elastic element will quickly reset the lifting and knocking blocks 17.

[0031] The transmission unit includes a first sprocket 12 installed on the end of the reciprocating threaded rod 8 away from the motor 7, a second sprocket 13 is installed on the end of the rotating rod 11 away from the motor 7, and a chain 14 is installed on the first sprocket 12 and the second sprocket 13 in a tensioned and meshed manner.

[0032] Specifically, the rotation of the reciprocating threaded rod 8 causes the first sprocket 12 to rotate, the rotation of the first sprocket 12 causes the second sprocket 13 to rotate through the chain 14, and the rotation of the second sprocket 13 causes the rotating rod 11 to rotate, thereby causing the reciprocating threaded rod 8 to drive the rotating rod 11 to rotate.

[0033] The elastic element comprises a spring 18 mounted on the bottom of the lifting knocking block 17, and the other end of the spring 18 is mounted on the bottom inner wall of the groove. By arranging the spring 18, it is convenient to quickly reset the lifting knocking block 17.

[0034] The top and bottom of the three lifting knocking blocks 17 are all equipped with a protective plate 19, which can close the groove. By arranging the protective plate 19, a certain protective effect is played, and the external dust is reduced to enter the groove and affect the reset of the spring 18.

[0035] The ends of the three lifting knocking blocks 17 extending out of the groove are all provided with movable holes, and two rollers are rotatably installed in the movable holes. The setting of the rollers facilitates the separation of the extrusion block 16 from the lifting knocking block 17.

[0036] In summary, when the utility model is in use, the pulley on the crushing roller 2 is first driven to rotate by an external motor and a belt. The rotation of the pulley on the crushing roller 2 causes the crushing roller 2 to rotate. When the crushing roller 2 is running, coal blocks are loaded from above the shell 1. At this time, the coal blocks gradually fall down under the action of gravity and contact the guide plate 4. At the same time, the motor 7 is started. The output of the motor 7 causes the reciprocating threaded rod 8 to rotate. The rotation of the reciprocating threaded rod 8 under the guidance of the guide rod causes the rack 9 to reciprocate. The reciprocating movement of the rack 9 causes the multiple gears 6 to reciprocate. The reciprocating rotation of multiple gears 6 will cause multiple movable rods 3 to rotate reciprocatingly, and the reciprocating rotation of multiple movable rods 3 will cause multiple guide plates 4 to swing back and forth. The reciprocating swing of the guide plates 4 will cause the lower outlet between the two guide plates 4 to move back and forth, thereby guiding the coal falling at the same position, so that the coal falling at the same position is spread flat on the crushing roller 2, avoiding the accumulation of coal on one side above the crushing roller 2 and causing other parts of the crushing roller 2 to be in an idling state. When the guiding is completed, the coal blocks continue to fall and contact the crushing roller 2, thereby being crushed.

[0037] When guiding materials, the rotation of the reciprocating threaded rod 8 will cause the first sprocket 12 to rotate, and the rotation of the first sprocket 12 will cause the second sprocket 13 to rotate through the chain 14, and the rotation of the second sprocket 13 will cause the rotating rod 11 to rotate, and the rotation of the rotating rod 11 will cause the annular block 15 to rotate, and the rotation of the annular block 15 will cause the extrusion block 16 to move in a circle. When the extrusion block 16 contacts the roller of the lifting and knocking block 17, the extrusion block 16 continues to move to squeeze the roller and move the lifting and knocking block 17 downward. When the extrusion block 16 does not contact the roller, the roller is not subjected to force. At this time, the lifting and knocking block 17 will quickly reset under the action of the spring 18 and collide with the inner wall of the groove, thereby causing the shell 1 to vibrate, thereby avoiding the coal blocks from getting stuck on the guide plate 4 and allowing the crushed coal blocks to fall better.

Claims

1. An underground coal crusher, comprising a housing (1), characterized in that: Two crushing rollers (2) are rotatably mounted inside the shell (1), both ends of the two crushing rollers (2) extend outside the shell (1) and are respectively mounted with pulleys, and a material guide vibration mechanism is arranged on the upper part of the shell (1); The material guide vibration mechanism comprises a plurality of movable rods (3) rotatably mounted on two opposite inner walls of the shell (1), a material guide plate (4) being fixedly sleeved on the plurality of movable rods (3), three grooves being provided on the side wall of the shell (1), vertically arranged sliding rods being fixedly mounted in the three grooves, a lifting and knocking block (17) being slidably sleeved on the sliding rods, the upper surface of the lifting and knocking block (17) being close to the upper inner wall of the groove, and a driving extrusion assembly capable of rotating the plurality of movable rods (3) being provided on the shell (1); The driving extrusion assembly comprises a fixed box (5) mounted on the side wall of the shell (1), a plurality of movable rods (3) rotatably penetrate the side wall of the shell (1) and the side wall of the fixed box (5), one end of each of the movable rods (3) extends into the fixed box (5) and is respectively installed with a gear (6), a motor (7) is installed outside the fixed box (5), a reciprocating threaded rod (8) is rotatably installed inside the fixed box (5), one end of the reciprocating threaded rod (8) extends outside the fixed box (5) and is installed on the fixed box (5), and a plurality of movable rods (3) are installed on the fixed box (5) and the fixed box (5) are respectively installed with a gear (6). A rack (9) is threadedly sleeved on the reciprocating threaded rod (8) on the output shaft of the motor (7); a guide rod is fixedly installed inside the fixed box (5); the rack (9) is slidably sleeved on the guide rod; a plurality of gears (6) are meshed with the rack (9); an elastic extrusion unit capable of moving the three lifting and knocking blocks (17) downward is provided on the fixed box (5); the elastic extrusion unit is installed in cooperation with the reciprocating threaded rod (8); and elastic elements are provided at the bottoms of the three lifting and knocking blocks (17).

2. An underground coal crusher according to claim 1, characterized in that: The elastic extrusion unit comprises two fixed blocks (10) mounted on the bottom of the fixed box (5); the sides of the two fixed blocks (10) close to each other are rotatably mounted with a rotating rod (11); the rotating rod (11) is mounted in cooperation with the reciprocating threaded rod (8) through a transmission unit; three annular blocks (15) are fixedly sleeved on the rotating rod (11); the peripheral outer walls of the three annular blocks (15) are all fixedly mounted with extrusion blocks (16); the extrusion blocks (16) are capable of driving the lifting and knocking blocks (17) to descend.

3. An underground coal crusher according to claim 2, characterized in that: The transmission unit comprises a first sprocket (12) mounted on an end of the reciprocating threaded rod (8) away from the motor (7); a second sprocket (13) is mounted on an end of the rotating rod (11) away from the motor (7); and a chain (14) is mounted on the first sprocket (12) and the second sprocket (13) in a tensioned and meshed manner.

4. An underground coal crusher according to claim 2, characterized in that: The elastic element comprises a spring (18) mounted on the bottom of the lifting and striking block (17), and the other end of the spring (18) is mounted on the bottom inner wall of the groove.

5. An underground coal crusher according to claim 1, characterized in that: Protective plates (19) are installed on the top and bottom of the three lifting and striking blocks (17), and the protective plates (19) can close the grooves.

6. An underground coal crusher according to claim 1, characterized in that: One end of the three lifting and striking blocks (17) extending out of the groove is provided with a movable hole, and two rollers are rotatably mounted in the movable holes.

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