Cutting pick holder assembly capable of automatically adjusting height for coal mining machine

By designing an automatically height-adjustable cutting tooth holder assembly for coal mining machines, and utilizing structures such as mounting cylinders, chutes, and sliders, the cutting tooth body achieves uniform force and rotation, solving the problem of uneven cutting tooth wear, extending service life, and improving work efficiency.

CN223814045UActive Publication Date: 2026-01-20BOREK MINING EQUIP CO LTD
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Patent Information

Application Number
CN202520677131.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-01-20
Estimated Expiration
2035-04-11

AI Technical Summary

Technical Problem

During use, the existing cutting tooth holder assembly suffers from uneven wear of the cutting tooth body, resulting in a shortened service life, increased replacement frequency, reduced work efficiency, and unnecessary waste due to the inability to rotate.

Method used

An automatically height-adjustable cutting tooth holder assembly for coal mining machines was designed. Through the cooperation of structures such as mounting cylinder, slide groove, slider, support spring, push plate, turntable, and threaded rod, the cutting tooth body can achieve uniform force and rotation, extending its service life. Furthermore, through the cooperation of structures such as limit plate, positioning shaft, and fixing plate, convenient installation and rotation can be achieved.

Benefits of technology

This achieves uniform wear of the cutting tooth body during operation, extends its service life, reduces replacement frequency, improves work efficiency, and reduces unnecessary waste.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223814045U_ABST
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Abstract

The utility model relates to the technical field of cutting pick holder components, in particular to a cutting pick holder component capable of automatically adjusting height for a coal mining machine, which comprises a cutting pick body, an adjusting device is arranged on one side of the cutting pick body, the adjusting device comprises a mounting cylinder, a sliding chute is arranged in the mounting cylinder, a sliding block is arranged in the sliding chute, and a cutting pick holder is arranged in the sliding block. A supporting spring is arranged on one side of the sliding block, a push plate is arranged at the other end of the supporting spring, and a connecting cylinder is arranged on one side of the push plate. According to the cutting tooth holder assembly capable of automatically adjusting the height for the coal mining machine, the effect of facilitating sliding of the cutting tooth body is achieved through matched use of the mounting cylinder, the sliding groove and the sliding block, the effect of pushing the cutting tooth body to reset is achieved through matched use of the push plate and the supporting spring, and the effect of facilitating rotation of the threaded rod is achieved through matched use of the connecting cylinder and the rotating disc.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cutting tooth seat assembly, concretely to a cutting tooth seat assembly with automatic height adjustment for coal mining machine. BACKGROUND

[0002] The cutting tooth is divided into the cutting tooth of coal mining machine and the cutting tooth of heading machine, is the part on the mining heading machine, is used in mining and tunnel construction etc.

[0003] The existing cutting tooth seat assembly will appear the different degrees of abrasion of multiple cutting tooth bodies in the process of using, the service life is greatly shortened, further increases the replacement frequency of cutting tooth, reduces the work efficiency, and the cutting tooth cannot rotate in the process of working, will lead to uneven abrasion of single cutting tooth, thereby causes unnecessary waste, therefore the cutting tooth seat assembly with automatic height adjustment for coal mining machine is urgently needed to improve the above problems. SUMMARY

[0004] The utility model discloses at least one of the technical defects.

[0005] Therefore, one purpose of the utility model is to provide a cutting tooth seat assembly with automatic height adjustment for coal mining machine to solve the problems mentioned in the background art and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, one embodiment of the utility model provides a cutting tooth seat assembly with automatic height adjustment for coal mining machine, which comprises a cutting tooth body, an adjusting device is arranged on one side of the cutting tooth body, the adjusting device comprises a mounting cylinder, a sliding groove is formed in the inside of the mounting cylinder, a sliding block is arranged in the inside of the sliding groove, a supporting spring is arranged on one side of the sliding block, a push plate is arranged at the other end of the supporting spring, a connecting cylinder is arranged on one side of the push plate, a rotating disc is arranged in the inside of the connecting cylinder, a threaded rod is arranged on one side of the rotating disc, a threaded cylinder is arranged on the outside of the threaded rod, and a sealing cover is arranged on the outside of the threaded cylinder.

[0007] The utility model is further provided with the following arrangement: an internal thread is formed on the outside of the mounting cylinder, an external thread is arranged in the inside of the sealing cover, the internal thread is matched with the external thread, the threaded cylinder is fixedly connected with the sealing cover, and the rotating disc is rotatably connected in the inside of the connecting cylinder.

[0008] By adopting the above technical scheme, the internal thread is matched with the external thread, and the sealing cover is fixed.

[0009] The utility model is further provided with the following arrangement: the sliding block is slidably connected in the inside of the sliding groove, the push plate is slidably connected in the inside of the mounting cylinder, the supporting spring is movably connected in the inside of the mounting cylinder, and the cutting tooth body is fixedly connected with the sliding block.

[0010] By adopting the above technical scheme, the supporting spring is movably connected to the inside of the mounting cylinder, and plays a role of pushing the cutting tooth body.

[0011] The utility model further sets up: the outside of mounting cylinder is provided with connecting device, connecting device including limit board, the inside of limit board is provided with positioning hole, the inside of positioning hole is provided with positioning shaft, the outside of limit board is provided with limit ring and fixed plate, the inside of fixed plate is provided with screw hole, the inside of screw hole is provided with fixed screw, one side of fixed plate is provided with connecting block.

[0012] By adopting the above technical scheme, the inside of the screw hole is provided with the fixed screw, which plays a role of mounting the fixed plate.

[0013] The utility model further sets up: limit board rotation is connected to the outside of mounting cylinder, positioning shaft is connected in the inside of positioning hole, positioning shaft is fixedly connected with limit board, limit ring is fixedly connected to the outside of limit board.

[0014] By adopting the above technical scheme, the positioning shaft is fixedly connected with the limit board, which plays a role of facilitating the assembly of the limit board.

[0015] The utility model further sets up: the inside of connecting block is provided with screw hole, and the fixed plate and the connecting block are rotatably connected to the outside of the fixed plate, and the fixed screw is matched with the screw hole.

[0016] In summary, the beneficial technical effects of the utility model are:

[0017] 1. The cutting tooth seat assembly with automatic height adjustment for coal mining machine, through the cooperation of the mounting cylinder, the sliding groove and the sliding block, the cutting tooth body is facilitated to slide, through the cooperation of the push plate and the supporting spring, the cutting tooth body is facilitated to reset, through the cooperation of the connecting cylinder and the rotating disc, the threaded rod is facilitated to rotate, through the cooperation of the threaded rod, the threaded cylinder and the push plate, the supporting spring is compressed, through the cooperation of the external thread and the internal thread, the sealing cover is fixed, through the use of the above structure, the cutting tooth body can be more evenly stressed during work, the service life can be prolonged, the replacement frequency can be reduced, and the work efficiency can be ensured.

[0018] 2. The coal mining machine with automatically adjustable height pick tooth holder assembly, through the cooperation of positioning shaft and positioning hole, the function of facilitating the splicing of limiting plate is played, through the addition of limiting plate, the function of facilitating the installation of cylinder rotation is played, through the cooperation of limiting ring, fixed plate and fixed block, the function of facilitating the rotation of limiting plate is played, through the cooperation of screw hole and fixed screw, the function of quickly assembling connecting block and fixed plate is played, through the use of the above structure, the limiting plate and the installation cylinder can rotate in the working process, so that the pick tooth body can rotate in the working process, the pick tooth body can be worn more evenly, thereby reducing unnecessary waste.

[0019] Additional aspects and advantages of the present application will be set forth in part in the following description, and in part will become apparent to those skilled in the art upon examination of the following description, or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings, in which:

[0021] Figure 1 is a structural schematic diagram of the present application;

[0022] Figure 2 is a structural schematic diagram of the adjusting device of the present application;

[0023] Figure 3 is a structural schematic diagram of the pick tooth body of the present application;

[0024] Figure 4 is a structural schematic diagram of the connecting cylinder of the present application;

[0025] Figure 5 is a structural schematic diagram of the sealing cover of the present application;

[0026] Figure 6 is a structural schematic diagram of the connecting device of the present application;

[0027] Figure 7 is a structural schematic diagram of the limiting plate of the present application.

[0028] In the figure: 1, pick tooth body; 2, adjusting device; 3, installation cylinder; 4, sliding groove; 5, sliding block; 6, supporting spring; 7, push plate; 8, connecting cylinder; 9, rotating disc; 10, threaded rod; 11, threaded cylinder; 12, sealing cover; 13, internal thread; 14, external thread; 15, connecting device; 16, limiting plate; 17, positioning hole; 18, positioning shaft; 19, limiting ring; 20, fixed plate; 21, screw hole; 22, fixed screw; 23, connecting block. DETAILED DESCRIPTION

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] Reference Figures 1 to 5 This utility model discloses an automatically adjustable height cutting tooth holder assembly for a coal mining machine, comprising a cutting tooth body 1, an adjustment device 2 on one side of the cutting tooth body 1, the adjustment device 2 including an installation cylinder 3, a sliding groove 4 inside the installation cylinder 3, a slider 5 inside the sliding groove 4, a support spring 6 on one side of the slider 5, a push plate 7 at the other end of the support spring 6, a connecting cylinder 8 on one side of the push plate 7, a turntable 9 inside the connecting cylinder 8, a threaded rod 10 on one side of the turntable 9, a threaded cylinder 11 on the outside of the threaded rod 10, and a sealing cover 12 on the outside of the threaded cylinder 11. In this embodiment, the installation cylinder 3 serves as a limit, the sliding groove 4 facilitates the sliding of the slider 5, and the slider 5 prevents the cutting tooth body 1 from falling off.

[0032] Reference Figure 2 , Figure 3 and Figure 5 The outer side of the mounting cylinder 3 is provided with an internal thread 13, and the inside of the sealing cover 12 is provided with an external thread 14. The internal thread 13 and the external thread 14 are adapted to each other. The threaded cylinder 11 is fixedly connected to the sealing cover 12. The turntable 9 is rotatably connected to the inside of the connecting cylinder 8. In this embodiment, the internal thread 13 and the external thread 14 both serve to fix the sealing cover 12, and the sealing cover 12 serves to fix the threaded cylinder 11.

[0033] Reference Figure 2 and Figure 3 The slider 5 is slidably connected to the inside of the groove 4, the push plate 7 is slidably connected to the inside of the mounting cylinder 3, the support spring 6 is movably connected to the inside of the mounting cylinder 3, and the cutting tooth body 1 is fixedly connected to the slider 5. In this embodiment, the push plate 7 plays the role of compressing the support spring 6, and the support spring 6 plays the role of pushing the cutting tooth body 1 to move.

[0034] Reference Figure 1 , Figure 6 and Figure 7A connecting device 15 is provided on the outer side of the mounting cylinder 3. The connecting device 15 includes a limiting plate 16. A positioning hole 17 is provided inside the limiting plate 16. A positioning shaft 18 is provided inside the positioning hole 17. A limiting ring 19 and a fixing plate 20 are provided on the outer side of the limiting plate 16. A screw hole 21 is provided inside the fixing plate 20. A fixing screw 22 is provided inside the screw hole 21. A connecting block 23 is provided on one side of the fixing plate 20. In this embodiment, the limiting plate 16 facilitates the rotation of the mounting cylinder 3, the positioning hole 17 serves as a positioning function, and the positioning shaft 18 serves as a limiting function.

[0035] Reference Figure 1 , Figure 6 and Figure 7 The limiting plate 16 is rotatably connected to the outside of the mounting cylinder 3, the positioning shaft 18 is engaged inside the positioning hole 17, the positioning shaft 18 is fixedly connected to the limiting plate 16, and the limiting ring 19 is fixedly connected to the outside of the limiting plate 16. In this embodiment, the limiting ring 19 plays a limiting role, and the limiting plate 16 plays a role in engaging the mounting cylinder 3.

[0036] Reference Figure 6 and Figure 7 The connecting block 23 has a screw hole 21 inside. The fixing plate 20 and the connecting block 23 are rotatably connected to the outside of the fixing plate 20. The fixing screw 22 is adapted to the screw hole 21. In this embodiment, the connecting block 23 serves to facilitate the connection of the equipment, the screw hole 21 serves to install the fixing screw 22, and the fixing screw 22 serves to install the fixing plate 20.

[0037] The implementation principle of this embodiment is as follows:

[0038] In actual use, when the cutting tooth body 1 comes into contact with the mineral, it will slide inside the mounting cylinder 3, while the slider 5 will slide inside the slide groove 4, and the support spring 6 will be compressed. When the cutting tooth body 1 is subjected to different pressures, the degree of compression of the support spring 6 will also be different. When it is necessary to change the sliding stroke of the cutting tooth body 1, a tool is needed to rotate the threaded rod 10. During the rotation of the threaded rod 10, the position of the threaded cylinder 11 remains unchanged, which can cause the threaded rod 10 to drive the push plate 7 to slide inside the mounting cylinder 3, compressing the support spring 6 to different degrees, thereby changing the stroke of the cutting tooth body 1.

[0039] Since the threaded rod 10 is fixedly connected to the turntable 9, the turntable 9 will rotate inside the connecting cylinder 8 during the rotation of the threaded rod 10. The sealing cover 12 is firmly connected to one side of the mounting cylinder 3 through the cooperation of the internal thread 13 and the external thread 14, which serves as a limit.

[0040] During the process that the cutting tooth body 1 contacts with the mineral, the mounting cylinder 3 can slide in the interior of the limiting plate, and the limiting plate 16 can rotate in the interior of the connecting block 23 and the fixed base, which can help the cutting tooth body 1 rotate during the working process, so that the cutting tooth body 1 can be worn more evenly.

[0041] When the connecting device 15 is maintained, the fixed screw 22 needs to be separated from the interior of the screw hole 21 by using a tool, the fixed plate 20 is separated from the connecting block 23, after the fixed plate 20 is separated from the connecting block 23, the limiting plate 16 can be taken off to one side and can be divided into two parts, at the same time, the positioning shaft 18 is pulled out from the interior of the positioning hole 17, at this time, the mounting cylinder 3 can be pulled out from the interior of the connecting device 15, and then the internal structure is maintained, when the mounting cylinder 3 needs to be reset, the mounting cylinder 3 needs to be placed in the interior of the limiting plate 16, the positioning shaft 18 is inserted into the interior of the positioning hole 17, then the spliced limiting plate 16 is placed on one side of the connecting block 23, finally, the fixed plate 20 is installed on one side of the connecting block 23, and the fixed screw 22 is installed in the interior of the screw hole 21, the installation of the mounting cylinder 3 is completed, and the connecting block 23 can be connected.

[0042] Compared with the prior art, the utility model has the following beneficial effects relative to the prior art:

[0043] Through the cooperation of the mounting cylinder 3, the sliding groove 4 and the sliding block 5, the cutting tooth body 1 can slide conveniently, through the cooperation of the push plate 7 and the supporting spring 6, the cutting tooth body 1 can be reset, through the cooperation of the connecting cylinder 8 and the rotating disc 9, the threaded rod 10 can rotate conveniently, through the cooperation of the threaded rod 10, the threaded cylinder 11 and the push plate 7, the supporting spring 6 can be compressed, through the cooperation of the external thread 14 and the internal thread 13, the sealing cover 12 can be fixed, through the above structure, the cutting tooth body 1 can bear force more evenly during the working process, the service life can be prolonged, the replacement frequency can be reduced, the working efficiency can be ensured, through the cooperation of the positioning shaft 18 and the positioning hole 17, the limiting plate 16 can be spliced conveniently, through the addition of the limiting plate 16, the mounting cylinder 3 can rotate conveniently, through the cooperation of the limiting ring 19, the fixed plate 20 and the fixed block, the limiting plate 16 can rotate conveniently, through the cooperation of the screw hole 21 and the fixed screw 22, the connecting block 23 and the fixed plate 20 can be assembled quickly, through the above structure, the limiting plate 16 and the mounting cylinder 3 can rotate during the working process, the cutting tooth body 1 can rotate during the working process, the cutting tooth body 1 can be worn more evenly, and unnecessary waste can be reduced.

[0044] The embodiments of the present embodiment are the preferred embodiments of the present utility model, not limited to the protection scope of the present utility model, so: all equivalent changes made according to the structure, shape and principle of the present utility model should be covered in the protection scope of the present utility model.

Claims

1. A cutting tooth holder assembly for a coal mining machine with automatically adjustable height, characterized in that: The device includes a cutting tooth body (1), an adjustment device (2) is provided on one side of the cutting tooth body (1), the adjustment device (2) includes a mounting cylinder (3), a sliding groove (4) is provided inside the mounting cylinder (3), a slider (5) is provided inside the sliding groove (4), a support spring (6) is provided on one side of the slider (5), a push plate (7) is provided at the other end of the support spring (6), a connecting cylinder (8) is provided on one side of the push plate (7), a turntable (9) is provided inside the connecting cylinder (8), a threaded rod (10) is provided on one side of the turntable (9), a threaded cylinder (11) is provided on the outside of the threaded rod (10), and a sealing cover (12) is provided on the outside of the threaded cylinder (11).

2. The automatically height-adjustable cutting tooth holder assembly for a coal mining machine according to claim 1, characterized in that: The mounting cylinder (3) has an internal thread (13) on its outer side, and the sealing cover (12) has an external thread (14) inside. The internal thread (13) and the external thread (14) are matched. The threaded cylinder (11) is fixedly connected to the sealing cover (12), and the turntable (9) is rotatably connected to the inside of the connecting cylinder (8).

3. The automatically height-adjustable cutting tooth holder assembly for a coal mining machine according to claim 1, characterized in that: The slider (5) is slidably connected to the inside of the groove (4), the push plate (7) is slidably connected to the inside of the mounting cylinder (3), the support spring (6) is movably connected to the inside of the mounting cylinder (3), and the cutting tooth body (1) is fixedly connected to the slider (5).

4. The automatically height-adjustable cutting tooth holder assembly for a coal mining machine according to claim 1, characterized in that: A connecting device (15) is provided on the outside of the mounting cylinder (3). The connecting device (15) includes a limiting plate (16). A positioning hole (17) is provided inside the limiting plate (16). A positioning shaft (18) is provided inside the positioning hole (17). A limiting ring (19) and a fixing plate (20) are provided on the outside of the limiting plate (16). A screw hole (21) is provided inside the fixing plate (20). A fixing screw (22) is provided inside the screw hole (21). A connecting block (23) is provided on one side of the fixing plate (20).

5. A cutting tooth holder assembly for a coal mining machine with automatically adjustable height according to claim 4, characterized in that: The limiting plate (16) is rotatably connected to the outside of the mounting cylinder (3), the positioning shaft (18) is engaged inside the positioning hole (17), the positioning shaft (18) is fixedly connected to the limiting plate (16), and the limiting ring (19) is fixedly connected to the outside of the limiting plate (16).

6. The automatically height-adjustable cutting tooth holder assembly for a coal mining machine according to claim 4, characterized in that: The connecting block (23) has a screw hole (21) inside. The fixing plate (20) and the connecting block (23) are rotatably connected to the outside of the fixing plate (20). The fixing screw (22) is adapted to the screw hole (21).