Coal crusher

Abstract

The utility model discloses a coal crusher, which relates to the field of coal crushing, and comprises a crushing box and a crushing part, a crushing wheel I is connected to the inner wall of a chute arranged on the crushing box, a crushing wheel II is rotatably connected to the other side of the top of the inner cavity of the crushing box, two belts are symmetrically arranged on the two sides of the outer wall of the crushing box, and two tensioning parts are symmetrically arranged on the two sides of the crushing box. The screening part is installed on the inner wall of the crushing box, the transmission part drives the first crushing wheel and the second crushing wheel to rotate reversely, and the first crushing wheel can move towards the side away from the second crushing wheel along sliding grooves in the tops of the two sides of the crushing box and meanwhile drives the eccentric assembly to push one side of the bottom of the screening part in a reciprocating mode. According to the coal crusher, when the crushing wheel I is extruded by exceeding the limit torque, one side close to stones moves along the sliding chute of the crushing box, the working shape of the belt is changed, the buffer bracket is pushed by the belt to move along the axial direction of the belt, the belt is kept to be pressed by the pressing wheel, and after coal and minerals with high hardness are pushed out of the discharging area, the coal and the minerals are discharged into the discharging area. And the crushing wheel I automatically resets.

Description

Technical Field

[0001] The utility model relates to a coal crushing technology, in particular to a coal crusher. Background Art

[0002] Crushed coal has the following advantages:

[0003] Improve combustion efficiency: The crushed coal particles are smaller, the surface area is larger, and the contact with air is more complete during combustion, the combustion speed is faster, and the combustion efficiency is higher. Therefore, the crushed coal can improve the combustion efficiency and reduce the coal consumption.

[0004] Convenient for transportation and storage: The crushed coal particles are smaller and denser, making them easier to load, unload and transport. In addition, smaller particles are easier to stack and store, saving space.

[0005] Convenient for coal gasification and washing: Crushed coal can be used in the coal gasification process and converted into coal gas or other chemical raw materials through gasification reaction. In addition, the crushed coal can be washed by physical or chemical methods to remove impurities and improve the purity and utilization value of coal.

[0006] Improve coal quality utilization: Crushed coal can better adapt to different coal quality utilization needs, such as electricity, steel, chemical and other industries.

[0007] When the existing coal crusher is in use, a high-power motor is used on the roller crusher to squeeze and shear the coal fed into the equipment through two parallel rotating rollers to break the coal into smaller particles. However, the coal to be crushed often contains stones and gangue left over after washing and other non-combustible minerals with higher hardness, and these minerals are difficult to distinguish with the naked eye when mixed with coal. Under the existing technology, the roller crusher crushes the coal together with the stones and gangue left over after washing and other non-combustible minerals with higher hardness. These non-combustible minerals with higher hardness will increase the load of the crusher during crushing, affecting the service life of the crusher. At the same time, the crushed non-combustible minerals will absorb a large amount of heat during use, reducing the thermal efficiency of the coal, and there will be incomplete combustion during combustion, which will produce a large amount of toxic and harmful gases, causing harm to human health and pollution to the environment. Utility Model Content

[0008] The purpose of the utility model is to provide a coal crusher to solve the above-mentioned deficiencies in the prior art.

[0009] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal crusher, comprising a crushing box and a crushing piece, wherein the crushing piece is installed in the inner cavity of the crushing box, and a slide groove is opened on one side of the top of both sides of the crushing box, and through holes are opened on the top and bottom of the inner cavity, and also includes:

[0010] The crushing wheel one is movably connected to the inner wall of the chute provided in the crushing box, and both ends of the crushing wheel one penetrate and extend to the outer wall of the crushing box;

[0011] Crushing wheel 2 is rotatably connected to the other side of the top of the inner cavity of the crushing box, and both ends of the crushing wheel 2 penetrate and extend to the middle of the outer wall of the crushing box, and the gap between the crushing wheel 1 and the crushing wheel 2 forms a material discharge area;

[0012] A power source, which is installed on one side of the outer wall of the crushing box;

[0013] Two belts are symmetrically installed on one side of the outer wall of the crushing box, and the belts can drive the crushing wheel 1 and the crushing wheel 2 to rotate under the drive of the power source;

[0014] Two tensioners are symmetrically installed on both sides of the crushing box, and the tensioners can apply a constant pressing force to the belt;

[0015] A screening element, which is mounted on the inner wall of the crushing box and located at the bottom of the inner cavity of the crushing box;

[0016] Two transmission parts are symmetrically installed on both sides of the outer wall of the crushing box;

[0017] An eccentric assembly, which is installed on one side of the crushing box and located at the bottom of the transmission member;

[0018] The transmission part drives the crushing wheel 1 and the crushing wheel 2 to rotate in opposite directions. When subjected to a large extrusion pressure, the crushing wheel 1 moves along the slide grooves on the top of both sides of the crushing box to the side away from the crushing wheel 2. The tensioning part keeps the pressing force on the belt unchanged and drives the eccentric component to push the bottom side of the screening element back and forth.

[0019] Furthermore, the box includes:

[0020] The feed hopper is fixedly installed on the top of the crushing box and is located on the inner wall of the top of the crushing box through which a through hole is provided.

[0021] Furthermore, the transmission member comprises:

[0022] A driving wheel, which is fixedly connected to the output end of the power source through a transmission shaft connected by a coupling;

[0023] An auxiliary wheel is rotatably connected to the outer wall of the crushing box and is located on a side away from the driving wheel;

[0024] The fixed bracket is fixedly installed outside the crushing box, and a power source is fixedly installed inside the fixed bracket.

[0025] Furthermore, the screening element comprises:

[0026] The two sides of the screen plate are movably installed in two inclined grooves opened on the inner wall of the bottom of the crushing box;

[0027] A guard plate movably connected to the top of the screen plate;

[0028] The supporting legs are movably mounted on the bottom of the screen plate and are located at the bottom of the side away from the outer wall of the crushing box.

[0029] Furthermore, the crushing piece:

[0030] Two driven wheels 1 are respectively fixedly mounted on two sides of the crushing wheel 1 outside the chute;

[0031] The two driven wheels 2 are respectively meshed and connected to the toothed rings of the crushing wheel 2 and extend through the side wall of the crushing box.

[0032] Furthermore, the eccentric assembly comprises:

[0033] A transmission shaft, which passes through one side of the crushing box and is located at the bottom of the transmission member, and the outer side of the transmission shaft is rotatably connected to the point where the crushing box 11 passes through;

[0034] A driven wheel three is fixedly mounted on the transmission shaft at one end of the outer wall of the crushing box;

[0035] A transmission belt, which is respectively connected to the driving wheel and the driven wheel;

[0036] An eccentric wheel is fixedly mounted on the other end of the transmission shaft;

[0037] The slide rail is fixedly installed inside the crushing box and located on the top of the eccentric wheel;

[0038] A slider is slidably connected in a slideway provided in the slide rail;

[0039] A transmission rod has one end rotatably connected to a protrusion on one side of the eccentric wheel, and the other end rotatably connected to a protrusion on one side of the slider.

[0040] Furthermore, the tensioning member comprises:

[0041] A connecting bracket is fixedly installed on one side of the crushing box;

[0042] A buffer bracket, one end of which is slidably connected to a hole provided in the connecting bracket;

[0043] A spring, which is sleeved on one side of the buffer bracket cylinder, one end of which abuts against one side of the buffer bracket, and the other end of which abuts against the connecting bracket;

[0044] A plurality of connecting rods, one end of which is fixedly mounted on one side of the buffer bracket in a circumferential array, and the other end of which is slidably connected to the connecting bracket and penetrates and extends to the other side of the connecting bracket;

[0045] The clamping wheel is rotatably mounted in an arc groove provided on one side of the buffer bracket, and the outer side of the clamping wheel is connected to the belt transmission.

[0046] Compared with the prior art, the utility model provides a coal crusher, wherein the power source provides rotational power for the driven wheel 2 and the driven wheel 1, and the driven wheel 2 changes the output direction of the force through the internal structure, so that the crushing wheel 2 and the crushing wheel 1 rotate in opposite directions, and the tensioning member provides a constant lateral pressing force for the belt to ensure the transmission of power. When stones or gangue enter the crusher for crushing, the crushing wheel 1 is squeezed beyond the limited torque, and the side close to the stone or gangue moves along the crushing box slide slot, the working shape of the belt changes, the spring deforms, and the buffer bracket moves along its axial direction under the push of the belt to keep the pressing wheel pressing the belt tightly, and after the coal and minerals with high hardness are pushed out of the unloading area, the crushing wheel 1 automatically resets, and the part discharged from the unloading area falls onto the screen plate, and the eccentric component drives the screen plate to vibrate. The heights of the two ends of the screen plate are different, and the uncrushed minerals slide to the lowest end on the screen plate, which is convenient for sorting coal blocks, stones and gangue that are not crushed to the specified size. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0048] Figure 1 A first stereogram of the overall structure provided by an embodiment of the utility model;

[0049] Figure 2 A schematic diagram of a cross-sectional top view of a box provided in an embodiment of the utility model;

[0050] Figure 3 A schematic diagram of a cross-sectional structure of a box provided in an embodiment of the utility model;

[0051] Figure 4 A second stereoscopic diagram of the overall structure provided by an embodiment of the utility model;

[0052] Figure 5 The embodiment of the utility model provides Figure 1 A magnified view of middle;

[0053] Figure 6 A first stereoscopic view of the partial structure of the screen plate, crushing box and eccentric assembly provided in an embodiment of the utility model;

[0054] Figure 7 A second stereoscopic view of the partial structure of the screen plate, crushing box and eccentric assembly provided in the embodiment of the utility model;

[0055] Figure 8 The embodiment of the utility model provides Figure 7 Enlarged view of B.

[0056] Description of reference numerals:

[0057] 1. Box body; 2. Screening parts; 3. Transmission parts; 4. Crushing parts; 5. Eccentric components; 11. Crushing box; 12. Feed hopper; 21. Guard plate; 22. Screen plate; 23. Legs; 31. Power source; 32. Fixed bracket; 33. Driving wheel; 34. Belt; 35. Tensioner; 36. Auxiliary wheel; 351. Pressure wheel; 352. Buffer bracket; 353. Spring; 354. Connecting bracket; 355. Connecting rod; 41. Crushing wheel one; 42. Crushing wheel two; 411. Driven wheel one; 421. Driven wheel two; 51. Driven wheel three; 52. Transmission belt; 53. Transmission shaft; 54. Eccentric wheel; 55. Transmission rod; 56. Sliding block; 57. Slide rail. DETAILED DESCRIPTION

[0058] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0059] Embodiment 1:

[0060] See also Figure 1-8 A coal crusher includes a crushing box 11 and a crushing element 4, wherein the crushing element 4 is installed in the inner cavity of the crushing box 11, and a chute is opened on one side of the top of both sides of the crushing box 11, and through holes are opened on the top and bottom of the inner cavity, and also includes:

[0061] A crushing wheel 41 is movably connected to the inner wall of the chute provided in the crushing box 11, and both ends of the crushing wheel 41 penetrate and extend to the outer wall of the crushing box 11;

[0062] The second crushing wheel 42 is rotatably connected to the other side of the top of the inner cavity of the crushing box 11, and both ends of the second crushing wheel 42 penetrate and extend to the middle of the outer wall of the crushing box 11, and the gap between the first crushing wheel 41 and the second crushing wheel 42 forms a material discharge area;

[0063] A power source 31 is installed on one side of the outer wall of the crushing box 11;

[0064] Two belts 34 are symmetrically mounted on one side of the outer wall of the crushing box 11, and the belts 34 can drive the crushing wheel 1 41 and the crushing wheel 2 42 to rotate under the drive of the power source 31;

[0065] Two tensioning members 35 are symmetrically mounted on both sides of the crushing box 11, and the tensioning members 35 can apply a constant pressing force to the belt 34;

[0066] The screening element 2 is mounted on the inner wall of the crushing box 11 and is located at the bottom of the inner cavity of the crushing box 11;

[0067] Two transmission members 3 are symmetrically mounted on both sides of the outer wall of the crushing box 11;

[0068] An eccentric assembly 5, which is installed on one side of the crushing box 11 and located at the bottom of the transmission member 3;

[0069] The transmission member 3 drives the crushing wheel 1 41 and the crushing wheel 2 42 to rotate in opposite directions. When subjected to a large extrusion pressure, the crushing wheel 1 41 moves along the slide grooves on the top of both sides of the crushing box 11 to the side away from the crushing wheel 2 42. The tensioning member 35 maintains the pressing force on the belt 34 unchanged, and at the same time drives the eccentric component 5 to push the bottom side of the screening member 2 back and forth.

[0070] The specific implementation is as follows: a plurality of protrusions are installed on the surface of the crushing wheel 1 41 and the crushing wheel 2 42. When crushing, the protrusions on the surface are more conducive to the crushing of coal. The two tensioners 35 work separately. The power source 31 includes but is not limited to a driving motor. The driving motor is electrically connected to an external power supply and is also controlled by an external PLC programming program. The part of the crushing wheel 2 42 that penetrates into the side wall of the crushing box 11 has an external tooth ring.

[0071] Including box 1:

[0072] The feed hopper 12 is fixedly mounted on the top of the crushing box 11 and is located on the inner wall of the top of the crushing box 11 through which a through hole is formed.

[0073] The transmission member 3 comprises:

[0074] A driving wheel 33, which is fixedly connected to the output end of the power source 31 via a transmission shaft connected by a coupling;

[0075] An auxiliary wheel 36 is rotatably connected to the outer wall of the crushing box 11 and is located on a side away from the driving wheel 33;

[0076] The fixed bracket 32 ​​is fixedly mounted on the outer wall of the crushing box 11 , and the power source 31 is fixedly mounted inside the fixed bracket 32 ​​.

[0077] Filter 2 includes:

[0078] The screen plate 22 has two sides movably mounted in two inclined grooves provided on the inner wall of the bottom of the crushing box 11;

[0079] A guard plate 21, which is movably connected to the top of the screen plate 22;

[0080] The supporting legs 23 are movably mounted on the bottom of the screen plate 22 and are located at the bottom of a side away from the outer wall of the crushing box 11 .

[0081] The specific implementation is as follows: the upper opening size of the feed hopper 12 is larger than the lower opening size thereof, the driving wheel 33 comprises two groups of belt slots, one group close to the outer wall of the crushing box 11 provides power for the crushing element 4, and one group close to the end of the power source 31 provides power for the eccentric assembly 5, and the screen plate 22 is provided with a plurality of through holes.

[0082] Including broken pieces 4:

[0083] Two driven wheels 411, which are respectively fixedly mounted on two sides of the crushing wheel 41 outside the chute;

[0084] The two driven wheels 421 are respectively meshed and connected to the toothed rings of the crushing wheel 42 and extend through the side wall of the crushing box 11 .

[0085] The specific implementation is as follows: the two driven wheels 421 include an external wheel and a shaft with teeth, and the driven wheel 421 is meshed and connected with the end of the crushing wheel 42.

[0086] The eccentric assembly 5 comprises:

[0087] The transmission shaft 53 passes through one side of the crushing box 11 and is located at the bottom of the transmission member 3, and the outer side of the transmission shaft 53 is rotatably connected to the penetration point of the crushing box 11;

[0088] A driven wheel 3 51, which is fixedly mounted on a transmission shaft 53 and located at one end of the outer wall of the crushing box 11;

[0089] A transmission belt 52, which is respectively connected to the driving wheel 33 and the driven wheel 51;

[0090] An eccentric wheel 54 is fixedly mounted on the other end of the transmission shaft 53;

[0091] The slide rail 57 is fixedly mounted inside the crushing box 11 and is located on the top of the eccentric wheel 54;

[0092] A slider 56 is slidably connected in a slideway defined by a slide rail 57;

[0093] The transmission rod 55 has one end rotatably connected to a protrusion on one side of the eccentric wheel 54 , and the other end rotatably connected to a protrusion on one side of the slider 56 .

[0094] The tensioning member 35 comprises:

[0095] A connecting bracket 354, which is fixedly mounted on one side of the crushing box 11;

[0096] The buffer bracket 352 has one end slidably connected to the hole formed in the connecting bracket 354;

[0097] The spring 353 is sleeved on one side of the cylinder of the buffer bracket 352, one end of which abuts against one side of the buffer bracket 352, and the other end of which abuts against the connecting bracket 354;

[0098] A plurality of connecting rods 355, one end of which is fixedly mounted on one side of the buffer bracket 352 in a circumferential array, and the other end of which is slidably connected to the connecting bracket 354, and passes through and extends to the other side of the connecting bracket 354;

[0099] The clamping wheel 351 is rotatably mounted in an arc groove provided on one side of the buffer bracket 352 , and the outer side of the clamping wheel 351 is transmission-connected to the belt 34 .

[0100] Working principle: When in use, the staff starts the equipment, the power source 31 drives the driving wheel 33 to rotate, the driving wheel 33 drives the driven wheel 1 411 and the driven wheel 2 421 to rotate through the belt 34, the spring 353 pushes the buffer bracket 352 to press the pressing wheel 351 to the outside of the belt 34, and drives the crushing wheel 1 41 and the crushing wheel 2 42 to rotate. After the speed of the crushing wheel 1 41 and the crushing wheel 2 42 rotating in opposite directions is stable, the coal is poured into the inner cavity of the crushing box 11 through the feed hopper 12, and the crushing wheel 1 41 and the crushing wheel 2 42 rotate in opposite directions to squeeze the coal and crush it. If the minerals with high hardness such as stone or gangue are crushed, under the mutual squeezing of the crushing wheel 1 41 and the crushing wheel 2 42, the side of the driven wheel 1 41 close to the mineral is pushed by the mineral to move away from the crushing wheel 2 42 along the slide groove on the crushing box 11. The working shape of the belt 34 changes, the spring 353 is deformed, and the buffer bracket 352 moves along its axial direction under the push of the belt 34, keeping the pressure wheel 351 pressing the belt 34, and after the high hardness mineral is pushed out of the unloading area, the crushing wheel 41 automatically resets, and the buffer bracket 352 resets under the elastic force of the spring 353, and the uncrushed part discharged from the unloading area falls onto the screen plate 22. At the same time, the driving wheel 33 drives the transmission shaft 53 to rotate through the transmission belt 52, driving the eccentric wheel 54 at the other end to rotate, and the eccentric wheel 54 drives the transmission rod 55 to push the slider 56 to reciprocate along the internal slide of the slide rail 57, providing vibration for the screen plate 22. The two ends of the screen plate 22 are at different heights, and the uncrushed minerals slide to the lowest end on the screen plate 22, and the crushed coal falls to the ground through the holes opened on the screen plate 22.

[0101] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A coal crusher, comprising a crushing box (11) and a crushing element (4), wherein the crushing element (4) is installed in the inner cavity of the crushing box (11), and a slide groove is provided on one side of the top of both sides of the crushing box (11), and through holes are provided through the top and bottom of the inner cavity, characterized in that: Also includes: A crushing wheel (41) is movably connected to the inner wall of a chute provided in the crushing box (11), and both ends of the crushing wheel (41) penetrate and extend to the outer wall of the crushing box (11); The second crushing wheel (42) is rotatably connected to the other side of the top of the inner cavity of the crushing box (11), and the two ends of the second crushing wheel (42) penetrate and extend to the middle of the outer wall of the crushing box (11), and the gap between the first crushing wheel (41) and the second crushing wheel (42) forms a material discharge area; A power source (31) is installed on one side of the outer wall of the crushing box (11); Two belts (34) are symmetrically mounted on one side of the outer wall of the crushing box (11), and the belts (34) can drive the crushing wheel 1 (41) and the crushing wheel 2 (42) to rotate under the drive of the power source (31); Two tensioning members (35) are symmetrically mounted on both sides of the crushing box (11), and the tensioning members (35) can apply a constant pressing force to the belt (34); A screening element (2) is mounted on the inner wall of the crushing box (11) and is located at the bottom of the inner cavity of the crushing box (11); Two transmission members (3) are symmetrically mounted on both sides of the outer wall of the crushing box (11); An eccentric assembly (5) is installed on one side of the crushing box (11) and is located at the bottom of the transmission member (3); The transmission member (3) drives the crushing wheel 1 (41) and the crushing wheel 2 (42) to rotate in opposite directions. When subjected to a large extrusion pressure, the crushing wheel 1 (41) moves along the slide grooves at the top of both sides of the crushing box (11) to the side away from the crushing wheel 2 (42). The tensioning member (35) maintains the pressing force on the belt (34) unchanged, and at the same time drives the eccentric assembly (5) to reciprocate the bottom side of the screening member (2).

2. A coal crusher according to claim 1, characterized in that; It also includes a box (1): The feed hopper (12) is fixedly mounted on the top of the crushing box (11) and is located on the inner wall of the top of the crushing box (11) through which a through hole is formed.

3. A coal crusher according to claim 1, characterized in that: The transmission member (3) comprises: A driving wheel (33) is fixedly connected to the output end of the power source (31) via a transmission shaft connected by a coupling; An auxiliary wheel (36) is rotatably connected to the outer wall of the crushing box (11) and is located on a side away from the driving wheel (33); The fixed bracket (32) is fixedly installed outside the crushing box (11), and a power source (31) is fixedly installed inside the fixed bracket (32).

4. A coal crusher according to claim 1, characterized in that: The screening element (2) comprises: The two sides of the screen plate (22) are movably mounted in two inclined grooves provided on the inner wall of the bottom of the crushing box (11); A guard plate (21) movably connected to the top of the screen plate (22); The supporting legs (23) are movably mounted on the bottom of the screen plate (22) and are located at the bottom of a side away from the outer wall of the crushing box (11).

5. A coal crusher according to claim 1, characterized in that: Also includes broken parts (4): Two driven wheels 1 (411), which are respectively fixedly mounted on two sides of the crushing wheel 1 (41) outside the chute; The two driven wheels 2 (421) are respectively meshed and connected to the toothed rings of the crushing wheel 2 (42) and extend through the side wall of the crushing box (11).

6. A coal crusher according to claim 1, characterized in that: The eccentric component (5) comprises: A transmission shaft (53) passes through one side of the crushing box (11) and is located at the bottom of the transmission member (3), and the outer side of the transmission shaft (53) is rotatably connected to the point where the crushing box (11) passes through; A driven wheel (51) is fixedly mounted on a transmission shaft (53) and located at one end of the outer wall of the crushing box (11); A transmission belt (52) is respectively connected to the driving wheel (33) and the driven wheel (51); An eccentric wheel (54) is fixedly mounted on the other end of the transmission shaft (53); A slide rail (57) is fixedly mounted on the inner side of the crushing box (11) and is located on the top of the eccentric wheel (54); A slider (56) is slidably connected in a slideway provided in the slide rail (57); A transmission rod (55) has one end rotatably connected to a protrusion on one side of the eccentric wheel (54), and the other end rotatably connected to a protrusion on one side of the slider (56).

7. A coal crusher according to claim 1, characterized in that: The tensioning member (35) comprises: A connecting bracket (354) is fixedly mounted on one side of the crushing box (11); A buffer bracket (352), one end of which is slidably connected to a hole formed in the connecting bracket (354); A spring (353) is sleeved on one side of the cylinder of the buffer bracket (352), one end of which abuts against one side of the buffer bracket (352), and the other end of which abuts against the connecting bracket (354); A plurality of connecting rods (355), one end of which is fixedly mounted on one side of the buffer bracket (352) in a circumferential array, and the other end of which is slidably connected to the connecting bracket (354) and penetrates and extends to the other side of the connecting bracket (354); The clamping wheel (351) is rotatably mounted in an arc groove provided on one side of the buffer bracket (352), and the outer side of the clamping wheel (351) is transmission-connected to the belt (34).

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