Novel access door of pin roll crusher

Abstract

The utility model relates to the technical field of access doors, in particular to a novel access door of a tooth roller crusher, an access group comprises an access door, a first push-pull group and a second push-pull group, the access door is arranged on the side wall of a crusher box and can slide along the side wall of the crusher box in a reciprocating manner, and when the access door slides to the left end of the side wall of the crusher box, the first push-pull group and the second push-pull group are closed. The access door covers the door opening, when the access door slides to the right end of the side wall of the crusher box, the access door leaves the door opening, the first push-pull group is arranged at the upper end of the access door, the second push-pull group is arranged at the lower end of the access door, and the first push-pull group and the second push-pull group act together to push the access door to slide leftwards or rightwards; the access door is fixed outside the door opening through the limiting groove, so that the sealing performance of the door opening is enhanced, and materials are prevented from leaking from the door opening; the first power source and the second power source act together to push the access door open from the door opening or cover the access door back to the door opening, the access door does not need to be hoisted through hoisting equipment, operation is convenient, and meanwhile potential safety hazards are eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of inspection doors, in particular to a new inspection door for a toothed roller crusher. Background Art

[0002] A toothed roller crusher is a common mechanical crushing device primarily used for crushing various hard materials such as ore, stone, coal, and cement clinker. It achieves this through the relative motion of two toothed rollers. It is suitable for use in industries such as coal, metallurgy, mining, chemicals, and building materials, and is particularly well-suited for crushing raw coal (including gangue) in large coal mines or coal preparation plants. A toothed roller crusher primarily consists of a body, a transmission system, toothed rollers, and an adjustment mechanism. The body serves as the entire machine's supporting framework. The transmission system, driven by an electric or hydraulic motor, rotates the toothed rollers, which are equipped with a fixed number of carbide teeth to crush the material. The adjustment mechanism adjusts the distance between the two rollers to accommodate materials of varying sizes. The toothed roller crusher operates by crushing the material through the relative motion of two toothed rollers. Once the material enters the crushing chamber, it is impacted and squeezed by the rotating toothed rollers, creating internal cracks that gradually expand and ultimately crush the material. The optimized tooth profile of the toothed rollers ensures selective crushing through tensile and shear forces, resulting in high efficiency, low energy consumption, and uniform particle size output.

[0003] The inspection door of the traditional tooth roller crusher is connected to the machine body with bolts. Each inspection requires unscrewing the bolts and lifting the inspection door with lifting equipment, which is time-consuming and labor-intensive, and also poses a safety hazard. Utility Model Content

[0004] The main purpose of the utility model is to provide a new type of inspection door for a toothed roller crusher, so as to solve the problem in the related art that each inspection requires unscrewing the bolts and lifting the inspection door with a lifting device.

[0005] To achieve the above-mentioned object, according to one aspect of the present invention, a new type of inspection door for a toothed roller crusher is provided, comprising: a crushing group, the crushing group comprising a crushing box, a door opening, a limit group, and a guide group, the door opening being provided in a side wall of the crushing box, through which the crusher can be inspected, the limit group being provided on the left side of the door opening and fixedly connected to the crushing box, and the guide groups being two in total, both being located on the right side of the door opening and fixedly connected to the crushing box;

[0006] The maintenance group includes an maintenance door, a first push-pull group and a second push-pull group. The maintenance door is arranged on the side wall of the crushing box and can slide back and forth along the side wall of the crushing box. When the maintenance door slides to the left end of the side wall of the crushing box, the maintenance door covers the door opening. When the maintenance door slides to the right end of the side wall of the crushing box, the maintenance door leaves the door opening. The first push-pull group is arranged at the upper end of the maintenance door, and the second push-pull group is arranged at the lower end of the maintenance door. The first push-pull group and the second push-pull group work together to push the maintenance door to slide left or right.

[0007] Furthermore, the limiting group includes a limiting arc and a limiting groove. The limiting arc is fixed to the side wall of the crusher box and is located at the left edge of the door opening. The limiting groove is provided between the limiting arc and the side wall of the crusher box for accommodating the left edge of the inspection door.

[0008] Furthermore, the guide group includes a first groove rail and a second groove rail, both of which are fixedly connected to the side wall of the crusher box and are located on the right side of the door opening, and both the first groove rail and the second groove rail are fixedly provided with a block at their right ends.

[0009] Furthermore, the first push-pull group includes a first protrusion, a first power source and a first connecting block, the first protrusion is fixedly provided on the top of the inspection door, one end of the first power source is fixedly provided on the side wall of the crusher box, and the other end is fixedly connected to the first protrusion, the first connecting block is fixedly provided on the top inside the inspection door, and can slide back and forth in the second groove rail.

[0010] Furthermore, the second push-pull group includes a second protrusion, a second power source and a second connecting block, the second protrusion is fixedly provided at the bottom of the inspection door, one end of the second power source is fixedly provided at the side wall of the crusher box, and the other end is fixedly connected to the second protrusion, and the second connecting block is fixedly provided at the bottom inner side of the inspection door and can slide back and forth in the first groove rail.

[0011] Furthermore, the first connecting block and the second connecting block have the same structure.

[0012] Furthermore, the first connecting block includes a connecting horizontal block, a connecting vertical block and a plurality of ball bearings. One end of the connecting horizontal block is fixedly connected to the inner side of the inspection door, and the other end is fixedly connected to the front of the connecting vertical block. The ball bearings are rotatably arranged on the back of the connecting vertical block.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the first connecting block and the second connecting block limit the inspection door to the crusher box and move forward along the first groove rail and the second groove rail. When the first connecting block and the second connecting block respectively abut the stop blocks of the first groove rail and the second groove rail, the inspection door completely leaves the door opening; the inspection door moves backward until the inspection door abuts the limit arc, and the first power source and the second power source are closed. At this time, the inspection door completely covers the door opening, and the left edge of the inspection door is located in the limit groove. The limit groove fixes the inspection door outside the door opening, enhances the sealing of the door opening, and prevents material from leaking from the door opening; the first power source and the second power source work together to push the inspection door open from the door opening or cover the door opening. There is no need to use lifting equipment to lift the inspection door, which is convenient for operation and also eliminates safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the crushing group of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the maintenance group of the utility model;

[0017] Figure 4 This is a schematic diagram of the connecting block structure of the utility model.

[0018] Illustration:

[0019] 1. Crushing group; 11. Crushing box; 12. Door opening; 13. Limit arc; 14. Limit slot; 15. First slot rail; 16. Second slot rail; 17. Stop block;

[0020] 2. Maintenance group; 21. Maintenance door; 22. First protrusion; 23. Second protrusion; 24. First power source; 25. Second power source; 26. First connecting block; 27. Second connecting block; 261. Connecting horizontal block; 262. Connecting vertical block; 263. Ball bearing. DETAILED DESCRIPTION

[0021] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0022] See also Figures 1 to 4This embodiment provides a new type of inspection door for a toothed roller crusher, comprising: a crushing group 1, the crushing group 1 comprising a crushing box 11, a door opening 12, a limit group, and a guide group. The door opening 12 is provided on the side wall of the crushing box 11, through which the crusher can be inspected. The limit group is provided on the left side of the door opening 12 and is fixedly connected to the crushing box 11. There are two guide groups, both located on the right side of the door opening 12 and both fixedly connected to the crushing box 11.

[0023] Maintenance group 2, maintenance group 2 includes an maintenance door 21, a first push-pull group and a second push-pull group. The maintenance door 21 is arranged on the side wall of the crushing box 11 and can slide back and forth along the side wall of the crushing box 11. When the maintenance door 21 slides to the left end of the side wall of the crushing box 11, the maintenance door 21 covers the door opening 12, and the door opening 12 is closed to prevent the material in the crushing box 11 from leaking out. When the maintenance door 21 slides to the right end of the side wall of the crushing box 11, the maintenance door 21 leaves the door opening 12, and the door opening 12 is opened, and the crusher can be inspected through the door opening 12. The first push-pull group is arranged at the upper end of the maintenance door 21, and the second push-pull group is arranged at the lower end of the maintenance door 21. The first push-pull group and the second push-pull group work together to push the maintenance door 21 to slide left or right, so that it leaves or covers the door opening 12.

[0024] The limiting group includes a limiting arc 13 and a limiting groove 14. The limiting arc 13 is fixed to the side wall of the crusher box 11 and is located at the left edge of the door opening 12. The limiting groove 14 is provided between the limiting arc 13 and the side wall of the crusher box 11, and is used to accommodate the left edge of the inspection door 21, limiting the inspection door 21 to the outside of the door opening 12, and preventing the inspection door 21 from deviating, resulting in poor sealing of the door opening 12. When the inspection door 21 moves to the left and presses against the limiting arc 13, it just completely covers the door opening 12.

[0025] The guide group includes a first groove rail 15 and a second groove rail 16. The first groove rail 15 and the second groove rail 16 are fixedly connected to the side wall of the crusher box 11 and are located on the right side of the door opening 12. The first connecting block 26 slides in the first groove rail 15, and the second connecting block 27 slides in the second groove rail 16, so that the inspection door 21 can move smoothly left and right. The right ends of the first groove rail 15 and the second groove rail 16 are fixed with a stopper 17 to limit the maximum displacement of the inspection door 21 and prevent it from falling off the first groove rail 15 and the second groove rail 16.

[0026] The first push-pull group includes a first protrusion 22, a first power source 24 and a first connecting block 26. In this embodiment, a telescopic cylinder is preferably used as the first power source 24, which can push out or pull back the inspection door 21. The first protrusion 22 is fixedly provided at the top of the inspection door 21. One end of the first power source 24 is fixedly provided at the side wall of the crusher box 11, and the other end is fixedly connected to the first protrusion 22. The first connecting block 26 is fixedly provided at the top inside the inspection door 21 and can slide back and forth in the second groove rail 16.

[0027] The second push-pull group includes a second protrusion 23, a second power source 25 and a second connecting block 27. In this embodiment, a telescopic cylinder is preferably used as the second power source 25, which can push out or pull back the inspection door 21. The second protrusion 23 is fixed to the bottom of the inspection door 21. One end of the second power source 25 is fixed to the side wall of the crusher box 11, and the other end is fixedly connected to the second protrusion 23. The second connecting block 27 is fixed to the bottom inside the inspection door 21 and can slide back and forth in the first groove rail 15.

[0028] The first connecting block 26 and the second connecting block 27 have the same structure.

[0029] The first connecting block 26 includes a connecting horizontal block 261, a connecting vertical block 262 and a plurality of balls 263. One end of the connecting horizontal block 261 is fixedly connected to the inner side of the inspection door 21, and the other end is fixedly connected to the front of the connecting vertical block 262. The balls 263 can be rotatably arranged on the back side of the connecting vertical block 262 to reduce the friction between the connecting vertical block 262 and the first groove rail 15 and the second groove rail 16, thereby facilitating the movement of the inspection door 21.

[0030] When the crusher is to be repaired, the first power source 24 and the second power source 25 are turned on at the same time, and the first power source 24 and the second power source 25 begin to extend, respectively pushing the inspection door 21 forward through the first protrusion 22 and the second protrusion 23, and the first connecting block 26 and the second connecting block 27 restrict the inspection door 21 to the crusher box 11 and move forward along the first groove rail 15 and the second groove rail 16. When the first connecting block 26 and the second connecting block 27 respectively abut against the stopper 17 of the first groove rail 15 and the second groove rail 16, the inspection door 21 completely leaves the door opening 12, and the first power source 24 and the second power source 25 are turned off, and the inspection door 21 stops. The maintenance personnel can inspect the crusher from the opened door opening 12. After the inspection is completed, the first power source 24 and the second power source 25 are started again. The first power source 24 and the second power source 25 begin to shorten, and the inspection door 21 is pulled backward by the first protrusion 22 and the second protrusion 23 respectively until the inspection door 21 is against the limit arc 13. The first power source 24 and the second power source 25 are closed. At this time, the inspection door 21 completely covers the door opening 12, and the left edge of the inspection door 21 is located in the limit groove 14. The limit groove 14 fixes the inspection door 21 outside the door opening 12, thereby enhancing the sealing of the door opening 12 and preventing materials from leaking from the door opening 12.

[0031] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A new type of inspection door for a toothed roller crusher, characterized in that: include: A crushing group (1), the crushing group (1) comprising a crushing box (11), a door opening (12), a limit group and a guide group, the door opening (12) being provided on a side wall of the crushing box (11), the crusher being accessible for maintenance through the door opening (12), the limit group being provided on the left side of the door opening (12) and being fixedly connected to the crushing box (11), and the guide groups being two in total, both being provided on the right side of the door opening (12) and both being fixedly connected to the crushing box (11); An inspection group (2) includes an inspection door (21), a first push-pull group, and a second push-pull group. The inspection door (21) is provided on the side wall of the crushing box (11) and can slide back and forth along the side wall of the crushing box (11). When the inspection door (21) slides toward the left end of the side wall of the crushing box (11), the inspection door (21) covers the door opening (12). When the inspection door (21) slides toward the right end of the side wall of the crushing box (11), the inspection door (21) leaves the door opening (12). The first push-pull group is provided at the upper end of the inspection door (21), and the second push-pull group is provided at the lower end of the inspection door (21). The first push-pull group and the second push-pull group work together to push the inspection door (21) to slide leftward or rightward.

2. The new type inspection door for a toothed roller crusher according to claim 1 is characterized in that: The limiting group comprises a limiting arc (13) and a limiting groove (14); the limiting arc (13) is fixedly arranged on the side wall of the crusher box (11) and is located at the left edge of the door opening (12); the limiting groove (14) is arranged between the limiting arc (13) and the side wall of the crusher box (11) and is used to accommodate the left edge of the inspection door (21).

3. The new type inspection door for a toothed roller crusher according to claim 1 is characterized in that: The guide group comprises a first groove rail (15) and a second groove rail (16), the first groove rail (15) and the second groove rail (16) are both fixedly connected to the side wall of the crusher box (11) and are located on the right side of the door opening (12), and a stopper (17) is fixedly provided at the right end of the first groove rail (15) and the second groove rail (16).

4. The new type inspection door for a toothed roller crusher according to claim 3 is characterized in that: The first push-pull group includes a first protrusion (22), a first power source (24) and a first connecting block (26), wherein the first protrusion (22) is fixedly arranged on the top of the inspection door (21), one end of the first power source (24) is fixedly arranged on the side wall of the crusher box (11), and the other end is fixedly connected to the first protrusion (22), and the first connecting block (26) is fixedly arranged on the top inside the inspection door (21) and can slide back and forth in the second groove rail (16).

5. The new type inspection door for a toothed roller crusher according to claim 4, characterized in that: The second push-pull group includes a second protrusion (23), a second power source (25) and a second connecting block (27), wherein the second protrusion (23) is fixed to the bottom of the inspection door (21), one end of the second power source (25) is fixed to the side wall of the crusher box (11), and the other end is fixedly connected to the second protrusion (23), and the second connecting block (27) is fixed to the bottom inside the inspection door (21) and can slide back and forth in the first groove rail (15).

6. The new inspection door for a toothed roller crusher according to claim 5, characterized in that: The first connecting block (26) and the second connecting block (27) have the same structure.

7. A new type inspection door for a toothed roller crusher according to claim 6, characterized in that: The first connecting block (26) comprises a connecting transverse block (261), a connecting vertical block (262) and a plurality of balls (263). One end of the connecting transverse block (261) is fixedly connected to the inner side of the inspection door (21), and the other end is fixedly connected to the front side of the connecting vertical block (262). The balls (263) are rotatably arranged on the back side of the connecting vertical block (262).

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