CN216305908U

CN216305908U - Improved generation coal-winning machine pick

Info

Publication number: CN216305908U
Application number: CN202122944186.4U
Authority: CN
Inventors: 刘爱民
Original assignee: Shandong Liaocheng Zhuoya Mechanical Equipment Co ltd
Current assignee: Shandong Liaocheng Zhuoya Mechanical Equipment Co ltd
Priority date: 2021-11-27
Filing date: 2021-11-27
Publication date: 2022-04-15
Anticipated expiration: 2031-11-27

Abstract

The utility model relates to a drilling tool for coal mining, in particular to an improved cutting pick of a coal mining machine. The tooth-shaped structure comprises a tooth handle, a tooth body and a tooth head, wherein the tooth body is in a conical structure, the tooth head is arranged at the top end of the tooth body, and the tooth head is fixed at the top end of the tooth body in a brazing mode; the method is characterized in that: a plurality of axial V-shaped grooves are uniformly formed in the whole body of the tooth body. The axial V-shaped grooves are uniformly formed in the whole body of the pick body, so that the self-rotation capability of the pick under the action of external force is promoted, the purpose that the pick can be uniformly worn when the left roller and the right roller of the coal cutter rotate clockwise and anticlockwise respectively is achieved, the service life of the pick is prolonged, and the coal mining efficiency is improved.

Description

Improved generation coal-winning machine pick

Technical Field

The utility model relates to a drilling tool for coal mining, in particular to an improved cutting pick of a coal mining machine.

Background

The cutting pick for coal cutter is a drill tool for cutting coal block in coal mine and includes mainly a tooth handle, a tooth body and a tooth head. In the prior art, the outer wall of a tooth body of a cutting tooth of a coal mining machine is of a smooth surface structure, the cutting tooth cannot rotate flexibly in the coal mining process, and the phenomena of partial abrasion of the cutting tooth and alloy falling generally exist, so that the cutting tooth is scrapped in advance, the service life is short, and the coal mining efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an improved cutting pick of a coal mining machine, and the technical problem is solved.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

an improved coal cutter cutting pick comprises a tooth handle, a tooth body and a tooth head, wherein the tooth body is of a conical structure, the tooth head is arranged at the top end of the tooth body, and the tooth head is fixed at the top end of the tooth body in a brazing mode; the method is characterized in that: a plurality of axial V-shaped grooves are uniformly formed in the whole body of the tooth body.

Preferably, the number of the V-shaped grooves is 8.

Preferably, an annular tool withdrawal groove is formed in a position where the bottom of the tooth body is connected with the tooth handle.

Has the advantages that: compared with the prior art, the axial V-shaped grooves are uniformly formed in the whole body of the pick body, so that the self-rotation capability of the cutting pick under the action of external force is promoted, the purpose that the cutting pick can be uniformly worn when the left roller and the right roller of the coal cutter rotate clockwise and anticlockwise respectively can be achieved, the service life of the cutting pick is prolonged, and the coal mining efficiency is improved.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a top view of fig. 1.

In the figure: 1-a gear handle; 2-tool withdrawal groove; 3-a tooth body; 31-V-shaped grooves; 4-tooth head.

Detailed Description

The utility model is further described with reference to the following figures and detailed description.

Example (b):

referring to fig. 1 and 2, the improved coal cutter pick of the embodiment includes a pick shank 1, a pick body 3 and a pick head 4, wherein the pick body 3 is in a conical structure, the tip of the pick body is provided with the pick head 4, and the pick head 4 is fixed at the tip of the pick body 3 in a brazing manner. The tooth body 3 is uniformly provided with a plurality of axial V-shaped grooves 31 around the body, and the V-shaped grooves 31 are of symmetrical V-shaped groove structures. In this embodiment, the number of the V-shaped grooves 31 is preferably 8. An annular tool withdrawal groove 2 is arranged at the position where the bottom of the tooth body 3 is connected with the tooth handle 1.

The materials for manufacturing the tooth handle 1, the tooth body 3 and the tool withdrawal groove 2 are chromium-molybdenum alloy structural steel. The manufacturing material of the tooth head 4 is tungsten-cobalt hard alloy. The W-Co hard alloy is a hard alloy composed of tungsten carbide and metal Co, has high bending strength and impact resistance, can be used for cutting cast iron, nonferrous metals and nonmetallic materials, and can also be used as wear-resistant tools such as drawing dies, cold-punching dies, nozzles, rollers, holding hammers, measuring tools, cutting tools and the like and mine tools.

The improved cutting tooth of the coal mining machine is characterized in that 8 axial V-shaped grooves 31 are uniformly formed in the whole body of a tooth body 3, so that the purpose that the cutting tooth can be uniformly worn when a left roller and a right roller of the coal mining machine respectively rotate clockwise and anticlockwise is achieved, the service life of the cutting tooth is prolonged, and the coal mining efficiency is improved. Meanwhile, the 8V-shaped grooves 31 are uniformly formed in the whole body of the pick body 3, the autorotation capacity of the cutting pick under the action of external force can be promoted, the V-shaped grooves 31 are of symmetrical V-shaped groove structures, the left and right rollers of the coal mining machine rotate clockwise and anticlockwise in the motion process of cutting coal blocks or gangue, and the cutting pick can rotate freely, so that the service life of the cutting pick is prolonged, and the coal mining efficiency is improved.

The foregoing shows and describes the fundamental principles, principal features and technical effects of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the claims and their equivalents.

Claims

1. An improved coal cutter cutting pick comprises a tooth handle (1), a tooth body (3) and a tooth head (4), wherein the tooth body (3) is of a conical structure, the tooth head (4) is arranged at the top end of the tooth body, and the tooth head (4) is fixed at the top end of the tooth body (3) in a brazing mode; the method is characterized in that: the tooth body (3) is uniformly provided with a plurality of axial V-shaped grooves (31) on the whole body, and the V-shaped grooves (31) are of symmetrical V-shaped groove structures.

2. The improved shearer pick of claim 1, wherein: the number of the V-shaped grooves (31) is 8.

3. An improved shearer pick as claimed in claim 1 or 2, wherein: an annular tool withdrawal groove (2) is arranged at the position where the bottom of the tooth body (3) is connected with the tooth handle (1).