Coal crusher

Abstract

The utility model discloses a coal crusher, and particularly relates to the technical field of crushed coal processing equipment, which is mainly characterized in that a sleeving bracket is positioned on the outer wall of a feed hopper and is welded with the feed hopper, and an extrusion mechanism is arranged above the sleeving bracket; wherein the extrusion mechanism is mounted on a lower piezoelectric cylinder above the sleeving bracket; a downward-moving supporting plate used for pressing coal downwards is installed in the sleeving support, and a downward-moving column is fixedly connected between the output end of the downward-moving electric cylinder and the downward-moving supporting plate. By arranging the extrusion mechanism, the pushing end of the lower piezoelectric cylinder is started to carry the lower moving column to slide downwards along the interior of the sleeving support, the lower moving support plate enables the extrusion strip plate to extrude the coal downwards, the pushing end of the side piezoelectric cylinder is started to enable the side pressing plate to extrude the coal downwards along the interior of the lower moving support plate, and the coal is extruded and crushed from the two sides and the middle in the vertical direction; and the coal is quickly moved downwards to be crushed under the vertical multi-point force, so that the coal crushing efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal crushing processing equipment, and more specifically, to a coal crusher. Background Art

[0002] Coal crusher is suitable for crushing coal. After the coal is crushed by the coal crusher, it helps to prevent or reduce the blockage of the raw coal bin and coal feeder, and improve the drying effect and pulverizing capacity of the coal. Therefore, a coal crusher is needed to realize the processing operation.

[0003] In the existing public documents, the utility model patent with patent publication number CN207307943U discloses a high-efficiency coal crusher, which can crush the extruded coal raw materials through the "wave"-shaped screw stripes through the crusher, so that the coal raw materials can be further crushed, and a plurality of holes are provided, which are arranged in the funnel through the funnel, so that when the funnel is vibrating, the coal raw materials can leak through the holes onto the conveyor crawler, so that the coal raw materials can be crushed efficiently; the coal crusher also has the following defects;

[0004] When the coal crusher is crushing the coal, although the coal is placed in the crushing position, it does not realize vertical extrusion and limited crushing of the coal, which results in a large amount of coal slipping in the crushing process, and the speed of crushing the coal is greatly reduced, affecting the coal crushing efficiency. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a coal crusher.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal crusher comprises a feed hopper and a sleeve bracket, the sleeve bracket is located on the outer wall of the feed hopper and is welded, and a squeezing mechanism is installed above the sleeve bracket; the squeezing mechanism is installed on the lower pressure electric cylinder above the sleeve bracket; a downward moving support plate for pressing down the coal material is installed inside the sleeve bracket, and a downward moving column is fixedly connected between the output end of the lower pressure electric cylinder and the lower moving support plate; an extrusion strip plate with a vertical cross-section shape of a circular arc is welded on the bottom of the lower moving support plate; side pressure plates are installed on the inner wall of the lower moving support plate and on both sides of the lower moving column, and the two side pressure plates slide vertically along the inside of the lower moving support plate, and a side pressure electric cylinder is fixedly installed on the top of the side pressure plate, the lower moving column passes through the sleeve bracket and is vertically slidably connected, and the outer wall of the lower moving column and the inner wall of the sleeve bracket are polished and ground.

[0007] Preferably, the outer wall of the side piezoelectric cylinder is installed with a socket frame welded to the lower support plate, and guide slide rods sliding through the socket bracket are installed on both sides of the lower piezoelectric cylinder. The two guide slide rods are symmetrically arranged about the lower piezoelectric cylinder, and the bottom ends of the two guide slide rods are welded to the top of the lower support plate. The two guide plates for pouring materials are respectively located on both sides of the inner wall of the feed hopper and welded and fixed, and the two guide plates are symmetrically arranged.

[0008] According to the above technical scheme, the pushing end of the lower pressure electric cylinder is started to carry the lower column to slide downward along the inside of the sleeve bracket, the lower support plate causes the extrusion strip to squeeze downward on the coal, the guide slide rod slides vertically along the inner wall of the sleeve bracket, the lower support plate drives the sleeve frame to move the side pressure electric cylinder downward, and the pushing end of the side pressure electric cylinder is started to cause the side pressure plate to squeeze the coal downward along the inside of the lower support plate.

[0009] Preferably, a crushing box detachably connected by bolts is installed below the feed hopper; a crushing assembly is installed inside the crushing box; the crushing assembly includes a first crushing roller, a second crushing roller and a plurality of crushing racks, the first crushing roller is located inside the crushing box and rotates to crush the coal, and the second crushing roller is located on one side of the first crushing roller and is rotatably connected to the crushing box, and the plurality of crushing racks are equidistantly distributed in a circular ring and fixed on the outer wall of the first crushing roller and the outer wall of the second crushing roller; the first crushing roller and the second crushing roller are fixedly connected to a rotating shaft at opposite ends, and the second crushing roller is concentrically welded to the rotating shaft, and one end of the rotating shaft is coaxially connected to a crushing motor; a support seat, a support platform and a support frame are arranged in sequence below the crushing motor from top to bottom, a gap for discharging coal is provided between the first crushing roller and the second crushing roller, and the first crushing roller and the second crushing roller are both made of stainless steel, the support seat and the support frame are fixedly connected to the support platform, and the support seat is used to support the crushing motor and is fixedly connected by bolts.

[0010] According to the above technical solution, two crushing motors are started to drive the two rotating shafts to rotate respectively, and the rotating shafts drive the second crushing roller to rotate, and the first crushing roller can also rotate. The multiple crushing racks on the first crushing roller and the second crushing roller can contact the coal to achieve rotational crushing. When one of the crushing motors is damaged, another set of crushing motors can be used to provide driving force to switch the crushing power.

[0011] Technical effects and advantages of the utility model:

[0012] 1. By setting up the extrusion mechanism, the push end of the lower pressure electric cylinder is started to carry the lower column to slide downward along the inside of the sleeve bracket, and the lower support plate is moved downward to squeeze the extrusion strip plate downward on the coal. The push end of the side pressure electric cylinder is started to squeeze the coal downward along the inside of the lower support plate, and the coal is squeezed and crushed vertically on both sides and in the middle. The coal is subjected to vertical multi-point force to achieve rapid downward crushing, and the efficiency of coal crushing is effectively improved;

[0013] 2. Use the support seat to vertically support the crushing motor, start the two crushing motors to drive the two rotating shafts to rotate respectively, the second crushing roller rotates, and the first crushing roller can also rotate to crush the coal. When one of the crushing motors is damaged, another set of crushing motors can be used to provide driving force to sustainably crush the coal. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a coal crusher main perspective structural schematic diagram.

[0015] Figure 2 The utility model is a schematic diagram of the partial structure of the connection between the sleeve bracket and the lower pressure electric cylinder in a coal crusher.

[0016] Figure 3 The utility model is a schematic diagram of a coal crusher in a top view.

[0017] Figure 4 The utility model is a schematic diagram of the cross-sectional structure of a coal crusher.

[0018] The accompanying drawings are marked as follows: 1. Feed hopper; 2. Socket bracket; 3. Downward pressure electric cylinder; 4. Downward movement column; 5. Downward movement support plate; 6. Extrusion strip plate; 7. Side pressure plate; 8. Side pressure electric cylinder; 9. Socket frame; 10. Guide slide bar; 11. Guide plate; 12. Crushing box; 13. Support platform; 14. First crushing roller; 15. Second crushing roller; 16. Rotating shaft; 17. Crushing motor; 18. Support seat; 19. Support base frame; 20. Crushing rack. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] As attached Figure 1-4A coal crusher is shown, which is provided with an extrusion mechanism. The setting of the extrusion mechanism realizes the extrusion and crushing of coal on both sides and in the middle. The coal is subjected to vertical multi-point force to realize rapid downward crushing, and the efficiency of crushing coal is effectively improved. The specific structure of the extrusion mechanism is set as follows:

[0021] In this embodiment, as shown in the attached Figure 1-2 As shown, the extrusion mechanism is installed on the lower pressure electric cylinder 3 above the sleeve bracket 2;

[0022] A downward support plate 5 for pressing down the coal is installed inside the sleeve bracket 2, and a downward column 4 is fixedly connected between the output end of the downward pressure electric cylinder 3 and the downward support plate 5;

[0023] The bottom end of the downward support plate 5 is welded with an extruded strip plate 6 having a vertical cross-section in the shape of an arc;

[0024] Side pressure plates 7 are installed on the inner wall of the lower support plate 5 and at both sides of the lower column 4. The two side pressure plates 7 slide vertically along the inner side of the lower support plate 5. A side pressure electric cylinder 8 is fixedly installed on the top of the side pressure plate 7.

[0025] The operating principle of the coal crusher in this embodiment is as follows: first, the uncrushed coal is placed into the feed hopper 1, and the coal is guided into the crushing gap between the first crushing roller 14 and the second crushing roller 15 by two guide plates 11. The first crushing roller 14 and the second crushing roller 15 can rotate and crush the coal downward during crushing, and at the same time, the lower piezoelectric cylinder 3 is started to push the lower column 4 to slide downward along the inside of the sleeve bracket 2, and the lower support plate 5 makes the extrusion strip plate 6 squeeze downward on the coal. At the same time, the lower support plate 5 moves downward stably under the guiding force of the two guide slide bars 10, and the guide slide bar 10 slides vertically along the inner wall of the sleeve bracket 2, and the lower support plate 5 drives the sleeve frame 9 to move the side piezoelectric cylinder 8 downward, and the side piezoelectric cylinder 8 is started to push the side pressure plate 7 to squeeze the coal downward along the inside of the lower support plate 5. The coal can quickly enter the feed hopper 1 from both sides and the middle for crushing, and the extrusion and crushing on both sides and the middle are realized vertically.

[0026] In this embodiment, as shown in the attached Figure 1-2As shown, the outer wall of the side piezoelectric cylinder 8 is installed with a sleeve frame 9 welded to the downward support plate 5, and guide slide bars 10 that slide through the sleeve bracket 2 are installed on both sides of the lower piezoelectric cylinder 3. The two guide slide bars 10 are symmetrically arranged about the lower piezoelectric cylinder 3, and the bottom ends of the two guide slide bars 10 are welded to the top of the lower support plate 5. When working, the lower support plate 5 moves downward stably under the guiding force of the two guide slide bars 10, and the guide slide bar 10 slides vertically along the inner wall of the sleeve bracket 2, which can ensure that the lower support plate 5 is pressed downward stably, and the two guide plates 11 for pouring materials are respectively located on both sides of the inner wall of the feed hopper 1 and welded and fixed. The two guide plates 11 are symmetrically arranged. When working, the two guide plates 11 can guide the coal material, and the coal material is pressed down and crushed according to the specified position.

[0027] In this embodiment, as shown in the attached Figure 1-4 As shown, a crushing box 12 is installed below the feed hopper 1 and is detachably connected by bolts;

[0028] A crushing assembly is installed inside the crushing box 12;

[0029] The crushing assembly includes a first crushing roller 14, a second crushing roller 15 and a plurality of crushing racks 20. The first crushing roller 14 is located inside the crushing box 12 and rotates to crush the coal material. The second crushing roller 15 is located on one side of the first crushing roller 14 and is rotatably connected to the crushing box 12. The plurality of crushing racks 20 are equidistantly distributed in a circular ring and fixed on the outer wall of the first crushing roller 14 and the outer wall of the second crushing roller 15.

[0030] The first crushing roller 14 and the second crushing roller 15 are fixedly connected to the rotating shaft 16 at the opposite ends, and the second crushing roller 15 and the rotating shaft 16 are coaxially welded, and one end of the rotating shaft 16 is coaxially connected to the crushing motor 17, and a support seat 18, a support platform 13 and a support frame 19 are arranged below the crushing motor 17 from top to bottom. A gap for discharging coal is provided between the first crushing roller 14 and the second crushing roller 15. The first crushing roller 14 and the second crushing roller 15 are both made of stainless steel, and the support seat 18 and the support frame 19 are fixedly connected to the support platform 13, and the support seat 18 is used to support the crushing motor 17 and is fixedly connected by bolts.

[0031] According to the above technical solution, the support platform 13 is supported by the support frame 19, and the support platform 13 can provide vertical support force to the support seat 18, and the support seat 18 vertically supports the crushing motor 17. The two crushing motors 17 are started to drive the two rotating shafts 16 to rotate respectively, and the rotating shaft 16 drives the second crushing roller 15 to rotate, and the first crushing roller 14 can also rotate. The multiple crushing racks 20 on the first crushing roller 14 and the second crushing roller 15 can contact the coal to achieve rotational crushing. When one of the crushing motors 17 is damaged, another set of crushing motors 17 can be used to provide driving force, and the other crushing motor 17 can be switched to continue driving, so as to sustainably crush the coal.

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A coal crusher, comprising a feed hopper (1) and a sleeve bracket (2), wherein the sleeve bracket (2) is located on the outer wall of the feed hopper (1) and welded, and is characterized in that: An extrusion mechanism is installed above the sleeve bracket (2); The extrusion mechanism is mounted on a downward pressure electric cylinder (3) above the sleeve bracket (2); A downward support plate (5) for pressing down coal is installed inside the sleeve bracket (2), and a downward column (4) is fixedly connected between the output end of the downward pressure electric cylinder (3) and the downward support plate (5); An extruded strip plate (6) having a vertical cross-section in the shape of a circular arc is welded to the bottom end of the downward support plate (5); Side pressure plates (7) are installed on the inner wall of the downward support plate (5) and at the positions on both sides of the downward column (4). The two side pressure plates (7) slide vertically along the inside of the downward support plate (5), and a side pressure electric cylinder (8) is fixedly installed on the top of the side pressure plate (7).

2. A coal crusher according to claim 1, characterized in that: The downward column (4) passes through the sleeve bracket (2) and is vertically slidably connected, and the outer wall of the downward column (4) and the inner wall of the sleeve bracket (2) are both polished and ground.

3. A coal crusher according to claim 1, characterized in that: The outer wall of the side piezoelectric cylinder (8) is installed with a sleeve frame (9) welded to the lower support plate (5), and both sides of the lower piezoelectric cylinder (3) are installed with guide slides (10) that slide through the sleeve bracket (2), and the two guide slides (10) are symmetrically arranged with respect to the lower piezoelectric cylinder (3), and the bottom ends of the two guide slides (10) are welded to the top of the lower support plate (5).

4. A coal crusher according to claim 1, characterized in that: Two guide plates (11) are used for pouring materials. The two guide plates (11) are respectively located at two sides of the inner wall of the feed hopper (1) and are fixed by welding. The two guide plates (11) are symmetrically arranged.

5. A coal crusher according to claim 1, characterized in that: A crushing box (12) is installed below the feed hopper (1) and is detachably connected by bolts; A crushing assembly is installed inside the crushing box (12); The pulverizing assembly comprises a first pulverizing roller (14), a second pulverizing roller (15) and a plurality of pulverizing racks (20), wherein the first pulverizing roller (14) is located inside a pulverizing box (12) and rotates to pulverize coal, and the second pulverizing roller (15) is located on one side of the first pulverizing roller (14) and is rotatably connected to the pulverizing box (12), and the plurality of pulverizing racks (20) are equidistantly distributed in a circular ring and fixed on the outer wall of the first pulverizing roller (14) and the outer wall of the second pulverizing roller (15); The first crushing roller (14) and the second crushing roller (15) are fixedly connected to a rotating shaft (16) at opposite ends, and the second crushing roller (15) and the rotating shaft (16) are coaxially welded, and one end of the rotating shaft (16) is coaxially connected to a crushing motor (17); A support seat (18), a support platform (13) and a support base frame (19) are arranged in sequence from top to bottom below the pulverizing motor (17).

6. A coal crusher according to claim 5, characterized in that: A gap for discharging coal is provided between the first crushing roller (14) and the second crushing roller (15), and the first crushing roller (14) and the second crushing roller (15) are both made of stainless steel.

7. A coal crusher according to claim 5, characterized in that: The support seat (18) and the support base frame (19) are both fixedly connected to the support platform (13), and the support seat (18) is used to support the pulverizing motor (17) and is fixedly connected by bolts.

Images