CN216198117U - Improved generation entry driving machine pick - Google Patents
Improved generation entry driving machine pick Download PDFInfo
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- CN216198117U CN216198117U CN202122564218.8U CN202122564218U CN216198117U CN 216198117 U CN216198117 U CN 216198117U CN 202122564218 U CN202122564218 U CN 202122564218U CN 216198117 U CN216198117 U CN 216198117U
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Abstract
The utility model relates to a drilling tool for coal mining and engineering rotary digging, in particular to an improved heading machine cutting pick. The alloy steel tooth handle is characterized by comprising an alloy steel tooth handle and an alloy steel tooth body, wherein the front end of the alloy steel tooth body is of a conical structure, a hard alloy tooth head is arranged at the top end of the conical structure, and the hard alloy tooth head is fixed at the top end of the alloy steel tooth body in a brazing mode; a plurality of slots are uniformly arranged on the front conical surface around the hard alloy tooth head, and each slot is internally provided with a hard alloy column; the hard alloy columns are fixed in the slots in a brazing mode. According to the utility model, the plurality of hard alloy columns with high hardness and good wear resistance are arranged in the alloy steel tooth body, so that the wear resistance of the alloy steel tooth body is greatly improved, and the service life of the cutting tooth is prolonged.
Description
Technical Field
The utility model relates to a drilling tool for coal mining and engineering rotary digging, in particular to an improved heading machine cutting pick.
Background
The heading machine is mainly used for heading coal roadways or semi-coal rock roadways and roadways of soft rock, and can also be used for tunnel construction of railways, highways, hydraulic engineering and the like, and the heading machine mainly uses cutting teeth for heading operation. The existing cutting pick mainly comprises an alloy steel pick body made of chromium-molybdenum alloy structural steel, wherein the front end of the alloy steel pick body is of a conical structure, and a hard alloy head is arranged at the top end of the conical structure. Because the alloy steel pick body is made of alloy structural steel, in the using process, the matrix around the hard alloy head is abraded, and the hard alloy head falls off, so that the pick is prematurely failed, and a new pick needs to be replaced, and waste is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an improved heading machine cutting pick, 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 entry driving machine cutting pick comprises an alloy steel tooth handle and an alloy steel tooth body, wherein the front end of the alloy steel tooth body is of a conical structure, a hard alloy tooth head is arranged at the top end of the conical structure, and the hard alloy tooth head is fixed at the top end of the alloy steel tooth body in a brazing mode; the method is characterized in that: a plurality of slots are uniformly arranged on the front conical surface around the hard alloy tooth head, and each slot is internally provided with a hard alloy column; the hard alloy columns are fixed in the slots in a brazing mode.
Preferably, the number of the slots and the hard alloy columns is 8, and the slots and the hard alloy columns are uniformly distributed on the front conical surface around the hard alloy tooth head.
Preferably, the top surface of the cemented carbide column is an oval chamfer surface matched with the front conical surface around the cemented carbide tooth head.
Has the advantages that: compared with the prior art, the utility model greatly improves the wear resistance of the alloy steel tooth body by arranging a plurality of hard alloy columns with high hardness and good wear resistance in the alloy steel tooth body, thereby prolonging the service life of the cutting tooth.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a cemented carbide post according to the present invention;
fig. 3 is a left side view of fig. 2.
Detailed Description
The utility model is further described with reference to the following figures and detailed description.
Referring to fig. 1, the improved heading machine cutting pick comprises an alloy steel tooth handle 1 and an alloy steel tooth body 2, wherein the front end of the alloy steel tooth body 2 is of a conical structure, a hard alloy tooth head 4 is arranged at the top end of the conical structure, and the hard alloy tooth head 4 is fixed at the top end of the alloy steel tooth body 2 in a brazing mode. The front conical surface around the hard alloy tooth head 4 is uniformly provided with 8 slots, each slot is internally provided with a hard alloy column 3, and the top surface 31 of each hard alloy column 3 is an oval oblique cutting surface matched with the front conical surface around the hard alloy tooth head 4. The hard alloy columns 3 are fixed in the slots in a brazing mode.
The hard alloy tooth head 4 and the hard alloy column 3 are made of 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 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 (2)
1. An improved heading machine cutting pick comprises an alloy steel tooth handle (1) and an alloy steel tooth body (2), wherein the front end of the alloy steel tooth body (2) is of a conical structure, a hard alloy tooth head (4) is arranged at the top end of the conical structure, and the hard alloy tooth head (4) is fixed at the top end of the alloy steel tooth body (2) in a brazing mode; the method is characterized in that: a plurality of slots are uniformly arranged on the front conical surface around the hard alloy tooth head (4), and each slot is internally provided with a hard alloy column (3); the hard alloy column (3) is fixed in the slot in a brazing mode; the top surface (31) of the hard alloy column (3) is an oval oblique cutting surface matched with the front conical surface around the hard alloy tooth head (4).
2. An improved roadheader pick as claimed in claim 1, wherein: the number of the slots and the hard alloy columns (3) is 8, and the slots and the hard alloy columns are uniformly distributed on the front conical surface around the hard alloy tooth head (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122564218.8U CN216198117U (en) | 2021-10-25 | 2021-10-25 | Improved generation entry driving machine pick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122564218.8U CN216198117U (en) | 2021-10-25 | 2021-10-25 | Improved generation entry driving machine pick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216198117U true CN216198117U (en) | 2022-04-05 |
Family
ID=80888405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122564218.8U Active CN216198117U (en) | 2021-10-25 | 2021-10-25 | Improved generation entry driving machine pick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216198117U (en) |
-
2021
- 2021-10-25 CN CN202122564218.8U patent/CN216198117U/en active Active
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