Coal crushing equipment for coal mine machinery

Abstract

The utility model relates to the technical field of coal crushing, and discloses coal crushing equipment for coal mine machinery, which comprises an operation box, a feed port arranged at the top of the operation box, a feed hopper arranged at the top of the operation box, a primary crushing mechanism arranged in the operation box, a first screening plate fixedly connected to the inner wall of the operation box, and a second screening plate fixedly connected to the inner wall of the operation box, a guide plate is fixedly connected to the surface of one side of the first screening plate; according to the coal mine crushing device, preliminarily crushed coal mines can be conveyed to the supporting plate in batches, so that the coal mines can be prevented from being accumulated on the supporting plate in a large quantity, meanwhile, the position of the knocking plate can be adjusted while the coal mines are knocked and crushed, the coal mine crushing effect is improved, and the problem that when part of existing equipment is used, the coal mines cannot be crushed easily is solved. And a large amount of coal mines are easily accumulated on the crushing screen plate, and part of the coal mines are easily placed in gaps between the crushing plate and the crushing screen plate and are difficult to knock, so that the coal mine crushing effect is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of coal crushing, in particular to coal crushing equipment for coal mine machinery. Background Art

[0002] Coal mining machinery is machinery specially used for coal mining. Its professional characteristics are different from other mining machinery. Coal mining machinery can generally be divided into mining equipment and mineral processing equipment according to the operating process. In the processing of coal and coal powder, it is often necessary to crush the mined coal. Therefore, specific coal mining crushing equipment is needed to crush it. Coal mining crushing equipment is a type of mineral processing equipment.

[0003] After searching, for example, a Chinese patent document discloses a coal crushing device for coal mining machinery [application number: CN202021850321.8]. This coal crushing device for coal mining machinery includes a base, and a crushing box is fixedly installed on the upper surface of the base.

[0004] The equipment disclosed in this patent can crush coal and screen the crushed coal multiple times. In addition, when the equipment is in use, it can also knock and crush the coal that has been preliminarily screened. However, when the equipment is in use, a large amount of coal that has been preliminarily crushed will be directly transported from the first inclined filter plate to the crushing mesh plate. A large amount of coal is accumulated on the crushing mesh plate, which will affect the effect of crushing the coal. Moreover, the crushing plate used in the equipment to knock and crush the coal can only be raised and lowered. During this process, part of the coal will be placed in the gap between the crushing plate and the crushing mesh plate and will be difficult to be knocked. After long-term use, the effect of crushing the coal will be affected. Utility Model Content

[0005] The purpose of the utility model is to provide a coal crushing device for coal mine machinery to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: A coal crushing device for coal mine machinery, comprising a working box, a feed port opened on the top of the working box, a feed hopper installed on the top of the working box and a preliminary crushing mechanism installed inside the working box, and also comprising:

[0007] A first screening plate fixedly connected to the inner wall of the work box, a guide plate fixedly connected to the surface of one side of the first screening plate, an inclined plate with a vibrator installed at the bottom and a second screening plate fixedly connected to the lower sides of the inner wall of the work box, a partition plate fixedly connected to the lower side of the inner wall of the work box, and a first slot and a second slot opened to the lower sides of the surface of the work box;

[0008] A feeding mechanism is installed on the inner wall of a working box, an electric push rod is fixedly connected to the top of the inner wall of the working box, the bottom of the piston rod of the electric push rod is fixedly connected to a rectangular frame, a driving mechanism is installed inside the rectangular frame, a cross plate is fixedly connected to the bottom of the rectangular frame, a rack plate is slidably connected to the bottom of the cross plate, a knocking plate is fixedly connected to the bottom of the rack plate, a support plate is fixedly connected to the inner wall of the working box, a through groove is provided on the top of the support plate, and a crushing nail is fixedly connected to the top of the support plate.

[0009] Preferably, a baffle is fixedly connected to the top of the inner wall of the working box, and the bottom of the baffle is located above the guide plate.

[0010] Preferably, the loading mechanism includes a first motor fixedly connected to the surface of the working box, a connecting rod one end of which is rotatably connected to the inner wall of the working box, and a loading plate fixedly connected to the surface of the connecting rod, and the other end of the connecting rod rotates through the working box and is fixedly connected to the output shaft of the first motor.

[0011] Preferably, the driving mechanism includes a second motor fixedly connected to the inside of the rectangular frame, a rotating shaft with one end fixedly connected to the output shaft of the second motor, and a gear plate meshing with the rack plate, and the other end of the rotating shaft rotates through the rectangular frame and is fixedly connected to the top of the gear plate.

[0012] Preferably, a folding plate is fixedly connected to the inner wall of the work box, and the surface of the support plate is fixedly connected to the inner wall of the folding plate.

[0013] Preferably, a clamping plate is fixedly connected to the top of the knocking plate, a clamping groove is provided at the bottom of the horizontal plate, and a surface of the clamping plate is slidably connected to an inner wall of the clamping groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model can convey the coal after preliminary crushing to the support plate in batches through the setting of the feeding mechanism, thereby preventing the coal from piling up on the support plate in large quantities; at the same time, the device can adjust the position of the knocking plate while knocking and crushing the coal through the coordinated use of the driving mechanism, the rack plate and the knocking plate, so as to improve the crushing effect of the coal, thereby solving the problem that a large amount of coal is easily accumulated on the crushing mesh plate when some existing equipment is in use, and a part of the coal is easily placed in the gap between the crushing plate and the crushing mesh plate and is difficult to be knocked, which will affect the coal crushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2It is a schematic diagram of a partial three-dimensional cross-sectional structure of the utility model;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the feeding mechanism in the utility model;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the folding plate, the support plate and the crushing nails used in combination in the utility model;

[0020] Figure 5 It is a partial three-dimensional structural schematic diagram of the utility model;

[0021] Figure 6 It is a schematic diagram of a partial three-dimensional structure of the utility model.

[0022] In the figure: 1. working box; 2. feeding hopper; 3. preliminary crushing mechanism; 4. first screening plate; 5. guide plate; 6. inclined plate; 7. second screening plate; 8. partition; 9. first slot; 10. second slot; 11. baffle; 12. feeding mechanism; 121. first motor; 122. connecting rod; 123. feeding plate; 13. electric push rod; 14. rectangular frame; 15. driving mechanism; 151. second motor; 152. rotating shaft; 153. gear plate; 16. rack plate; 17. knocking plate; 18. horizontal plate; 19. slot; 20. card plate; 21. folding plate; 22. supporting plate; 23. crushing nail. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-6As shown, a coal crushing device for coal mining machinery includes a working box 1, a feed port opened at the top of the working box 1, a feed hopper 2 installed at the top of the working box 1, and a preliminary crushing mechanism 3 installed inside the working box 1. A first screening plate 4 is fixedly connected to the upper part of the inner wall of the working box 1, and the first screening plate 4 is located below the preliminary crushing mechanism 3. A guide plate 5 is fixedly connected to the surface of one side of the first screening plate 4. An inclined plate 6 and a second screening plate 7 are respectively fixedly connected to the lower parts of both sides of the inner wall of the working box 1. Vibrators are installed at the bottom of the inclined plate 6 and the second screening plate 7. A partition plate 8 is fixedly connected to the lower part of the inner wall of the working box 1. The surface of one side of the second screening plate 7 is fixedly connected to the surface of the partition plate 8. A first slot 9 and a second slot 10 are respectively opened at the lower parts of both sides of the surface of the working box 1. A baffle plate 11 is fixedly connected to the top of the inner wall of the working box 1, and the bottom of the baffle plate 11 is located at the guide plate 5, the baffle plate 11 can be used to shield the initially crushed coal ore to reduce the possibility of the coal ore hitting the electric push rod 13 and the rectangular frame 14. A feeding mechanism 12 is installed on the inner wall of the working box 1, and an electric push rod 13 is fixedly connected to one side of the top of the inner wall of the working box 1, and the bottom of the piston rod of the electric push rod 13 is fixedly connected to the rectangular frame 14, and a driving mechanism 15 is installed inside the rectangular frame 14. A cross plate 18 is fixedly connected to the bottom of the rectangular frame 14, and a rack plate 16 is slidably connected to the bottom of the cross plate 18. The rack plate 16 can be used in conjunction with the driving mechanism 15, and a knocking plate 17 is fixedly connected to the bottom of the rack plate 16. A support plate 22 is fixedly connected to the inner wall of the working box 1, and a through groove is opened on the top of the support plate 22. A crushing nail 23 is fixedly connected to the top of the support plate 22. The crushing nail 23 is conical in design, and the crushing nail 23 can cooperate with the knocking plate 17 to crush the coal ore blocks.

[0025] The preliminary crushing mechanism 3 can crush the coal ore. This is a mature technology and will not be described in detail here.

[0026] The feeding mechanism 12 includes a first motor 121, a connecting rod 122 and a feeding plate 123. The first motor 121 is fixedly connected to the surface of the working box 1. One end of the connecting rod 122 is rotatably connected to the inner wall of the working box 1. The other end of the connecting rod 122 rotates through the working box 1 and is fixedly connected to the output shaft of the first motor 121. There are several feeding plates 123, which are fixedly connected to the surface of the connecting rod 122. When the staff starts the first motor 121, the connecting rod 122 drives the feeding plate 123 to rotate, so that the coal that has been preliminarily crushed can be discharged in batches to reduce the amount of coal accumulated on the top of the support plate 22, thereby ensuring the effect of the knocking plate 17 on the coal crushing.

[0027] The driving mechanism 15 includes a second motor 151, a rotating shaft 152 and a gear plate 153. The second motor 151 is fixedly connected to the inside of the rectangular frame 14. One end of the rotating shaft 152 is fixedly connected to the output shaft of the second motor 151. The other end of the rotating shaft 152 rotates through the rectangular frame 14 and is fixedly connected to the top of the gear plate 153. The rack plate 16 is meshed with the gear plate 153. The staff starts the second motor 151, and the rotating shaft 152 reciprocates with the second motor 151. Based on this, the rotating shaft 152 reciprocates to drive the gear plate 153 to rotate, which can drive the rack plate 16 to move reciprocally. At this time, the knocking plate 17 can continuously adjust and suppress and crush the coal mine to improve the effect of crushing the coal mine.

[0028] The inner wall of the working box 1 is fixedly connected with a folding plate 21, and the surface of the supporting plate 22 is fixedly connected to the inner wall of the folding plate 21. Through the setting of the folding plate 21, it can receive part of the coal transported by the feeding mechanism 12, and transport the received coal to the top of the supporting plate 22, so as to increase the practicality of the device.

[0029] A card plate 20 is fixedly connected to the top of the knocking plate 17, and a card slot 19 is provided at the bottom of the cross plate 18. The surface of the card plate 20 is slidably connected to the inner wall of the card slot 19. The coordinated use of the card slot 19 and the card plate 20 can increase the stability of the knocking plate 17 when moving.

[0030] Working principle: the staff puts the coal into the working box 1 through the feed hopper 2 and the feed port and starts the preliminary crushing mechanism 3, the electric push rod 13, the first motor 121, the second motor 151 and the vibrator. The preliminary crushing mechanism 3 can perform preliminary crushing on the coal. The coal after preliminary crushing falls to the top of the first screening plate 4 for preliminary screening. The screened coal falls onto the inclined plate 6. The larger pieces of coal are transported to the feeding mechanism 12 by the guide plate 5. The feeding plate 123 rotates with the connecting rod 122 to transport the coal to the top of the supporting plate 22 in batches. At the same time, the electric push rod 13 drives the rectangular frame 14 to rise and fall back and forth, and in this process, the gear plate 153 rotates and passes The rack plate 16 drives the knocking plate 17 to move back and forth in parallel. Accordingly, the knocking plate 17 and the crushing nails 23 can be used together to knock and crush the coal on the support plate 22. The parallel movement of the knocking plate 17 can increase the crushing effect of the coal to avoid the problem that some coal is difficult to be crushed due to being placed in a certain gap. The crushed coal falls into the second screening plate 7 through the through groove. At this time, the inclined plate 6 and the second screening plate 7 can drive the coal to fall under the action of the vibrator. The second screening plate 7 can also screen the coal again. Finally, the screened coal falls to both sides of the lower part of the working box 1, and the staff can take out coal of different specifications through the first slot 9 and the second slot 10.

[0031] 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 elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] 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. A coal crushing device for coal mining machinery, comprising a working box (1), a feed port opened on the top of the working box (1), a feed hopper (2) installed on the top of the working box (1), and a preliminary crushing mechanism (3) installed inside the working box (1), characterized in that: Also includes: A first screening plate (4) is fixedly connected to the inner wall of the work box (1), a guide plate (5) is fixedly connected to the surface of one side of the first screening plate (4), an inclined plate (6) with a vibrator installed at the bottom and a second screening plate (7) are fixedly connected below the inner wall of the work box (1) on both sides, a partition plate (8) is fixedly connected below the inner wall of the work box (1), and a first slot (9) and a second slot (10) are respectively opened below the surface of the work box (1) on both sides; A feeding mechanism (12) is installed on the inner wall of an operation box (1), the top of the inner wall of the operation box (1) is fixedly connected to an electric push rod (13), the bottom of the piston rod of the electric push rod (13) is fixedly connected to a rectangular frame (14), a driving mechanism (15) is installed inside the rectangular frame (14), the bottom of the rectangular frame (14) is fixedly connected to a cross plate (18), the bottom of the cross plate (18) is slidably connected to a rack plate (16), the bottom of the rack plate (16) is fixedly connected to a knocking plate (17), the inner wall of the operation box (1) is fixedly connected to a support plate (22), the top of the support plate (22) is provided with a through groove, and the top of the support plate (22) is fixedly connected to a crushing nail (23).

2. The coal crushing equipment for coal mining machinery according to claim 1, characterized in that: A baffle (11) is fixedly connected to the top of the inner wall of the work box (1), and the bottom of the baffle (11) is located above the guide plate (5).

3. The coal crushing equipment for coal mining machinery according to claim 1, characterized in that: The loading mechanism (12) comprises a first motor (121) fixedly connected to the surface of the working box (1), a connecting rod (122) having one end rotatably connected to the inner wall of the working box (1), and a loading plate (123) fixedly connected to the surface of the connecting rod (122); the other end of the connecting rod (122) rotatably penetrates the working box (1) and is fixedly connected to the output shaft of the first motor (121).

4. The coal crushing equipment for coal mining machinery according to claim 1, characterized in that: The driving mechanism (15) comprises a second motor (151) fixedly connected to the inside of the rectangular frame (14), a rotating shaft (152) having one end fixedly connected to the output shaft of the second motor (151), and a gear plate (153) meshing with the rack plate (16); the other end of the rotating shaft (152) rotates through the rectangular frame (14) and is fixedly connected to the top of the gear plate (153).

5. The coal crushing equipment for coal mining machinery according to claim 1, characterized in that: The inner wall of the work box (1) is fixedly connected with a folding plate (21), and the surface of the support plate (22) is fixedly connected to the inner wall of the folding plate (21).

6. The coal crushing equipment for coal mining machinery according to claim 1, characterized in that: A clamping plate (20) is fixedly connected to the top of the knocking plate (17), a clamping groove (19) is provided at the bottom of the transverse plate (18), and the surface of the clamping plate (20) is slidably connected to the inner wall of the clamping groove (19).

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