High-strength heading machine cutting pick

Abstract

The utility model provides a high-strength heading machine cutting pick, which relates to the technical field of heading machine parts and comprises a cutting pick assembly, a cutting pick head replacement assembly is arranged at the top of the cutting pick assembly, a cutting pick mounting assembly is arranged at the bottom of the cutting pick assembly, and the cutting pick assembly comprises a high-strength cutting pick head. And a butt joint block is installed at the bottom of the high-strength cutting pick head, a laser cladding suite is arranged on the outer side of the butt joint block, and a butt joint groove is formed in the laser cladding suite. The high-strength cutting pick head is installed in the butt joint groove, then the clamping ring and the clamping piece are clamped, the stability of the high-strength cutting pick head can be further guaranteed, then the limiting plate is installed in the limiting groove, the moving piece is pulled to slide in the sliding rail groove, and the high-strength cutting pick head can be fixed. And the high-strength cutting pick head can be conveniently maintained and replaced, the operation is convenient and fast, the shutdown waiting time is shortened, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of roadheader components, in particular to a high-strength roadheader pick. Background Art

[0002] Roadheaders are a general term for underground tunnel excavation equipment, such as coal mining machines used in coal mines, tunnel boring machines, and shield machines used in subway construction. They all use picks embedded in a rotating disk to perform excavation operations. When in use, the pick equipment directly cuts underground rocks, coal, and soil.

[0003] In the prior art, for example, the "high-strength wear-resistant pick" with publication number CN213627575U includes a pick body, an inner cavity is provided at the center of the pick body head, an alloy head is wrapped in the inner cavity, and the pick body head is provided with a carburized layer and a wear-resistant layer in sequence from the inside to the outside. Compared with the prior art, the beneficial effect of the present invention is that the present invention performs repeated carburizing treatment on the pick head, i.e., the body part that wraps the alloy part, to form a carburized layer with a thickness of more than 3.5 mm and a width of 25 mm-30 mm on the part, so that the body part has high hardness and wear resistance, which can significantly extend the wear life of the body, thereby effectively delaying or even preventing the alloy head from falling off prematurely, thereby improving the overall service life of the pick, reducing pick loss, reducing the frequency of pick replacement, saving manpower and material resources, and achieving the purpose of reducing coal mining costs.

[0004] Existing picks are easily damaged under high-intensity work and need to be replaced and maintained. However, during work, the pick heads of existing picks are usually in contact with rocks and other materials for a long time. Therefore, maintenance and replacement of the entire pick easily lead to increased costs and cause unnecessary economic waste. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that maintenance and replacement of the entire cutting tooth easily leads to increased costs and causes unnecessary economic waste, and to propose a high-strength roadheader cutting tooth.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a high-strength tunnel boring machine pick, comprising a pick assembly, a pick head replacement assembly is provided on the top of the pick assembly, a pick mounting assembly is provided on the bottom of the pick assembly, the pick assembly comprises a high-strength pick head, a docking block is installed at the bottom of the high-strength pick head, a laser cladding kit is provided on the outside of the docking block, a docking groove is provided inside the laser cladding kit, the outside of the docking block is connected to the internal thread of the docking groove, a fixing ring is installed on the outside of the docking block, a clamping ring is installed on the bottom of the fixing ring, a clamping part is installed on the outside of the clamping ring, the clamping part is provided inside the laser cladding kit, a limiting plate is symmetrically provided on the outside of the docking block, a limiting groove is provided inside the laser cladding kit, and the limiting plate is provided inside the limiting groove.

[0007] Preferably, the pick assembly further comprises a shank, a plurality of guide bars are distributed on the outer side of the shank, a positioning slot is installed on the outer side of the guide bar, and a gear sleeve is installed on the outer side of the positioning slot.

[0008] Preferably, a rubber strip is provided on the side of the limiting plate, and a sliding rail groove is provided on the top of the laser cladding kit.

[0009] Preferably, a moving part is movably provided inside the sliding rail groove, and a limiting block is installed at the bottom of the moving part.

[0010] Preferably, the bottom of the limiting block is connected to the top of the rubber strip, and one end of the limiting block moves inside the limiting groove.

[0011] Preferably, a plurality of springs are distributed on the outside of the shank, and one end of the spring is connected to a sphere.

[0012] Preferably, the inner wall of the gear sleeve is provided with a plurality of through grooves, and the spheres are arranged inside the through grooves.

[0013] Preferably, a locking ring is symmetrically provided on the top of the gear sleeve, and fastening bolts are provided passing through the interior of the locking ring.

[0014] Preferably, a plurality of protrusions are distributed on the outer side of the laser cladding kit, and a mounting piece is provided on the outer bottom of the shank.

[0015] Preferably, a tooth body is installed at the bottom of the laser cladding kit, and the bottom of the tooth body is connected to the top of the tooth shank.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are:

[0017] 1. In the present invention, the high-strength pick head is installed in the interior of the docking groove, and then the outer side of the docking block is connected to the inner wall thread of the docking groove. When the docking block and the inner installation of the docking groove are completed, the clamping ring is clamped with the clamping part, which is conducive to further ensuring the stability of the high-strength pick head. Then the limit plate is installed in the interior of the limit groove, and the moving part is pulled to slide in the interior of the sliding rail groove, which is conducive to driving the limit block to limit the limit plate. The bottom of the limit block is connected with the top of the rubber strip, which is conducive to further ensuring the stability of the limit plate, avoiding the limit plate from shifting, further providing effective limit for the limit plate, facilitating the maintenance and replacement of the high-strength pick head, and the operation is convenient and fast, reducing downtime and waiting time, improving work efficiency, and at the same time reducing the cost of replacing the entire pick assembly. Replacing only the worn high-strength pick head can effectively save costs.

[0018] 2. In the utility model, the tooth shank is installed inside the tooth sleeve, the guide strip on the outside of the tooth shank is clamped with the positioning groove on the inner wall of the tooth sleeve, and then the elasticity of the spring is used to set the ball inside the through groove, which is conducive to limiting. Subsequently, the locking ring is pushed closer to the middle by rotating the fastening bolt, which is conducive to further ensuring the stability of the installation of the pick assembly, thereby facilitating the installation and disassembly of the pick assembly, facilitating the rapid installation and disassembly of the pick assembly, reducing working time, and facilitating the timely replacement of damaged pick assemblies, ensuring the continuity of the tunneling machine operation, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model provides a three-dimensional structural diagram of a high-strength roadheader pick;

[0020] Figure 2 This is a schematic diagram of another angle structure of a high-strength roadheader pick proposed by the utility model;

[0021] Figure 3 The utility model provides a schematic diagram of the expanded structure of a high-strength roadheader pick;

[0022] Figure 4 The utility model provides a schematic structural diagram of a pick head assembly for a high-strength roadheader pick;

[0023] Figure 5 This is a schematic diagram of the structure of a pick head mounting assembly for a high-strength roadheader pick proposed in the utility model;

[0024] Figure 6 The utility model provides a schematic cross-sectional structure diagram of a pick mounting assembly for a high-strength roadheader pick;

[0025] Figure 7This is a schematic diagram of the enlarged structure of the A position of a high-strength roadheader pick proposed in the utility model;

[0026] Figure 8 The utility model provides a schematic diagram of the enlarged structure of position B of a high-strength roadheader pick.

[0027] Legend: 1. Pick assembly; 101. Tooth body; 102. Laser cladding kit; 103. Bump; 104. High-strength pick head; 105. Tooth shank; 106. Docking block; 107. Mounting part; 2. Pick head replacement assembly; 201. Fixed ring; 202. Clamping ring; 203. Limit plate; 204. Clamping part; 205. Sliding rail groove; 206. Moving part; 207. Limit block; 208. Docking groove; 209. Limit groove; 210. Rubber strip; 3. Pick installation assembly; 301. Tooth sleeve; 302. Locking ring; 303. Fastening bolt; 304. Positioning slide; 305. Through groove; 306. Guide strip; 307. Ball; 308. Spring. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. Example

[0030] like Figures 1-8As shown, the utility model provides a technical solution: a high-strength tunnel boring machine pick, including a pick assembly 1, a pick head replacement assembly 2 is provided on the top of the pick assembly 1, a pick mounting assembly 3 is provided on the bottom of the pick assembly 1, the pick assembly 1 includes a high-strength pick head 104, a docking block 106 is installed at the bottom of the high-strength pick head 104, a laser cladding kit 102 is provided on the outside of the docking block 106, a docking groove 208 is opened inside the laser cladding kit 102, the outside of the docking block 106 is connected to the internal thread of the docking groove 208, a fixing ring 201 is installed on the outside of the docking block 106, a clamping ring 202 is installed on the bottom of the fixing ring 201, and the clamping ring 20 2 is installed on the outside of the clamping part 204, and the clamping part 204 is arranged inside the laser cladding kit 102. A limit plate 203 is symmetrically arranged on the outside of the docking block 106. A limit groove 209 is provided inside the laser cladding kit 102, and the limit plate 203 is provided inside the limit groove 209. A rubber strip 210 is provided on the side of the limit plate 203. A sliding rail groove 205 is provided on the top of the laser cladding kit 102, and a moving part 206 is movably provided inside the sliding rail groove 205. A limit block 207 is installed at the bottom of the moving part 206. The bottom of the limit block 207 is connected to the top of the rubber strip 210, and one end of the limit block 207 moves inside the limit groove 209.

[0031] In this embodiment, the high-strength pick head 104 is installed in the interior of the docking groove 208, and then the outer side of the docking block 106 is connected to the inner wall thread of the docking groove 208. After the docking block 106 and the interior of the docking groove 208 are installed, the clamping ring 202 is clamped with the clamping member 204, which is conducive to further ensuring the stability of the high-strength pick head 104. Then, the limit plate 203 is installed in the interior of the limit groove 209, and the moving member 206 is pulled to slide in the interior of the sliding rail groove 205, which is conducive to driving the limit plate 203 to move forward. Block 207 limits the limit plate 203, and the bottom of the limit block 207 is connected to the top of the rubber strip 210, which is beneficial to further ensure the stability of the limit plate 203, avoid the limit plate 203 from shifting, and further provide effective limitation for the limit plate 203, which facilitates the maintenance and replacement of the high-strength pick head 104. The operation is convenient and fast, reduces downtime waiting time, improves work efficiency, and reduces the cost of replacing the entire pick assembly 1. Replacing only the worn high-strength pick head 104 can effectively save costs. Example

[0032] like Figures 1-8As shown, the pick assembly 1 also includes a shank 105, and a plurality of guide bars 306 are distributed on the outside of the shank 105. A positioning groove 304 is installed on the outside of the guide bar 306, and a gear sleeve 301 is installed on the outside of the positioning groove 304. A plurality of springs 308 are distributed on the outside of the shank 105, and one end of the spring 308 is connected to a ball 307. A plurality of through grooves 305 are opened on the inner wall of the gear sleeve 301, and the ball 307 is arranged inside the through groove 305. A locking ring 302 is symmetrically arranged on the top of the gear sleeve 301, and a fastening bolt 303 is penetrated inside the locking ring 302. A plurality of protrusions 103 are distributed on the outside of the laser cladding kit 102, and a mounting part 107 is provided on the bottom of the outer side of the shank 105. The bottom of the laser cladding kit 102 is installed with a tooth body 101, and the bottom of the tooth body 101 is connected to the top of the shank 105.

[0033] The cam 306 is actuated to move the guide bar 306 in the direction of the left and right sides of the toothed section 301 so that the toothed section 302 is moved in a direction of rotation so that the cam 306 can move in a direction of rotation so that the cam 306 can move in a direction of rotation so that the cam 306 can move in a direction of rotation so that the cam 306 can move in a direction of rotation so that the cam 306 can move in a direction of rotation so that the cam 306 can move in a direction of rotation so that the cam 306 can move in a direction of rotation so that the cam 306 can move in a direction of rotation so that the cam 306 can move in a direction of rotation so that the cam 306 can move in a direction of rotation so that the cam 306 can move in a direction of rotation so that the cam 306 can move in a direction of rotation so that the cam 306 can move in a direction of rotation so that the cam 306 can move in a direction of rotation so that the cam

[0034] The working principle of this embodiment is as follows: when in use, first install the tooth handle 105 inside the tooth sleeve 301, and the guide strip 306 on the outside of the tooth handle 105 is clamped with the positioning slot 304 on the inner wall of the tooth sleeve 301. Then, the elasticity of the spring 308 is used to set the ball 307 inside the through slot 305, which is conducive to limiting the position. Subsequently, the locking ring 302 is pushed closer to the middle by rotating the fastening bolt 303, which is conducive to further ensuring the stability of the installation of the pick assembly 1, thereby facilitating the installation of the pick assembly 1. When the high-strength pick head 104 is damaged and needs maintenance and replacement, the high-strength pick head 104 is installed in the inside of the docking groove 208, and then the outer side of the docking block 106 is aligned with the docking groove 208. The inner wall threads are connected. When the internal installation of the docking block 106 and the docking groove 208 is completed, the clamping ring 202 is clamped with the clamping part 204, which is beneficial to further ensure the stability of the high-strength pick head 104. Then the limit plate 203 is installed inside the limit groove 209, and the moving part 206 is pulled to slide inside the sliding rail groove 205, which is beneficial to drive the limit block 207 to limit the limit plate 203. The bottom of the limit block 207 is connected to the top of the rubber strip 210, which is beneficial to further ensure the stability of the limit plate 203, avoid the limit plate 203 from shifting, further provide effective limitation for the limit plate 203, and facilitate maintenance and replacement of the high-strength pick head 104.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A high-strength roadheader pick, comprising a pick assembly (1), characterized in that: The top of the pick assembly (1) is provided with a pick head replacement assembly (2), the bottom of the pick assembly (1) is provided with a pick mounting assembly (3), the pick assembly (1) comprises a high-strength pick head (104), a docking block (106) is installed at the bottom of the high-strength pick head (104), a laser cladding kit (102) is provided on the outside of the docking block (106), a docking groove (208) is provided inside the laser cladding kit (102), and the outside of the docking block (106) is threadedly connected to the inside of the docking groove (208). The docking block (106) is connected with a fixing ring (201) on its outer side, a clamping ring (202) is installed on the bottom of the fixing ring (201), a clamping member (204) is installed on the outer side of the clamping ring (202), the clamping member (204) is arranged inside the laser cladding kit (102), a limiting plate (203) is symmetrically arranged on the outer side of the docking block (106), a limiting groove (209) is provided inside the laser cladding kit (102), and the limiting plate (203) is arranged inside the limiting groove (209).

2. The high-strength roadheader pick according to claim 1, characterized in that: The pick assembly (1) further comprises a tooth shank (105), a plurality of guide strips (306) are distributed on the outer side of the tooth shank (105), a positioning slide groove (304) is installed on the outer side of the guide strip (306), and a tooth sleeve (301) is installed on the outer side of the positioning slide groove (304).

3. The high-strength roadheader pick according to claim 1, characterized in that: A rubber strip (210) is provided on the side of the limiting plate (203), and a sliding rail groove (205) is provided on the top of the laser cladding kit (102).

4. The high-strength roadheader pick according to claim 3, characterized in that: A moving member (206) is movably provided inside the sliding rail groove (205), and a limiting block (207) is installed at the bottom of the moving member (206).

5. The high-strength roadheader pick according to claim 4, characterized in that: The bottom of the limiting block (207) is connected to the top of the rubber strip (210), and one end of the limiting block (207) moves inside the limiting groove (209).

6. The high-strength roadheader pick according to claim 2, characterized in that: A plurality of springs (308) are distributed on the outer side of the tooth handle (105), and one end of the spring (308) is connected to a ball (307).

7. The high-strength roadheader pick according to claim 6, characterized in that: The inner wall of the gear sleeve (301) is provided with a plurality of through slots (305), and the spheres (307) are arranged inside the through slots (305).

8. The high-strength roadheader pick according to claim 2, characterized in that: A locking ring (302) is symmetrically arranged on the top of the gear sleeve (301), and a fastening bolt (303) is penetrated through the interior of the locking ring (302).

9. The high-strength roadheader pick according to claim 2, characterized in that: A plurality of protrusions (103) are distributed on the outer side of the laser cladding kit (102), and a mounting piece (107) is provided on the outer bottom of the tooth shank (105).

10. The high-strength roadheader pick according to claim 1, characterized in that: A tooth body (101) is installed at the bottom of the laser cladding kit (102), and the bottom of the tooth body (101) is connected to the top of the tooth shank (105).

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