CN212264403U - Cutting tooth structure of heading machine - Google Patents
Cutting tooth structure of heading machine Download PDFInfo
- Publication number
- CN212264403U CN212264403U CN202021298523.6U CN202021298523U CN212264403U CN 212264403 U CN212264403 U CN 212264403U CN 202021298523 U CN202021298523 U CN 202021298523U CN 212264403 U CN212264403 U CN 212264403U
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- pick
- cutting
- connecting column
- tool bit
- cutting pick
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model provides a heading machine pick structure, the structure part intensity of brazing that the structure brought of brazing of alloy tool bit on the solution pick is low, and alloy tool bit drops the problem after the atress, and the pick structure is: the alloy cutter head is provided with a connecting column which is inserted and connected into a whole with a blind hole on the cutting pick body in an interference fit manner. The beneficial effects are that: the cutting pick has the advantages that the cutting pick is simple in structure, the alloy tool bit and the cutting pick body are firmly connected, the cutting pick is not prone to falling and separating when in use, the service life of the cutting pick is prolonged, the production process is simple, the production efficiency is high, and the manufacturing cost of the cutting pick is greatly reduced.
Description
Technical Field
The utility model relates to a heading machine pick part structure, especially a heading machine pick structure.
Background
The heading machine is a general name of underground roadway excavation equipment, such as a coal mining machine used in coal mines, a roadway heading machine, a shield machine used in subway construction and the like, excavation operation is carried out by cutting teeth embedded on a rotating disk, the cutting teeth are also embedded on a drill rod of the drilling machine, and an alloy cutter head on the cutting teeth (commonly called teeth) directly carries out cutting operation on underground rock, coal and soil when the equipment is used, so that the cutting teeth bear severe working conditions such as huge impact, abrasion and the like during working, therefore, the alloy cutter head on the cutting teeth is also a vulnerable part, and the performance of the cutting teeth and the service life of the alloy cutter head on the cutting teeth directly influence the working efficiency of the heading machine.
Among the prior art, alloy tool bit on the pick all adopts alloy tool bit and pick body braze welding structure, the structure of brazing among the prior art, the technology is complicated with high costs, the structure part intensity of brazing is less than alloy tool bit and pick body material itself greatly, the intensity that forms the position of brazing is weak, use the atress back, the position fracture alloy tool bit of brazing drops, a large amount of picks cause the pick to scrap and can't use owing to dropping of alloy tool bit, cause use cost to increase and need frequently change the greatly reduced that pick reduces the rate of utilization of equipment.
SUMMERY OF THE UTILITY MODEL
For overcoming the above-mentioned technique that current pick exists not enough, the utility model discloses a heading machine pick structure.
The utility model discloses the technical scheme who realizes that the purpose adopts is: a heading machine cutting pick structure comprises an alloy tool bit and a cutting pick body, wherein the alloy tool bit comprises: the cutting tool bit and the connecting column are of an integrated structure.
The pick body is provided with a blind hole with a size corresponding to the connecting column.
The connecting column on the alloy cutter head is inserted into the blind hole on the cutting pick body in an interference fit manner to form a whole.
The utility model has the advantages that: the cutting pick has the advantages that the cutting pick is simple in structure, the alloy tool bit and the cutting pick body are firmly connected, the cutting pick is not prone to falling and separating when in use, the service life of the cutting pick is prolonged, the production process is simple, the production efficiency is high, and the manufacturing cost of the cutting pick is greatly reduced.
The present invention will be described in detail with reference to the accompanying drawings.
Drawings
Figure 1 is the cutting pick structure schematic diagram of the utility model.
FIG. 2 is a schematic view of the heating of the blind hole on the cutting pick body in the process of the present invention.
FIG. 3 is a drawing illustrating the diameter reduction forging of the blind hole on the cutting pick body in the process of the present invention.
In the attached drawing, 1 alloy cutter head, 1-1 cutting cutter head, 1-2 connecting column, 1-21 annular groove, 2 cutting tooth body, 2-1 blind hole, 3 forging die and 4 high-frequency induction coil.
Detailed Description
Referring to fig. 1, a heading machine cutting pick structure comprises an alloy cutter head and a cutting pick body.
The alloy tool bit 1 comprises: the cutting tool comprises a cutting tool bit 1-1 and a connecting column 1-2, wherein the cutting tool bit 1-1 and the connecting column 1-2 are of an integrated structure.
The pick body 2 is provided with a blind hole 2-1 with the size corresponding to that of the connecting column 1-2.
The connecting column 1-2 on the alloy cutter head 1 and the blind hole 2-1 on the cutting pick body 2 are inserted into a whole in an interference fit mode.
When the alloy cutting pick is used, load borne by the cutting pick is transmitted to the cutting pick body 2 through the connecting column 1-2, and the alloy cutting pick 1 is not separated from the cutting pick body 2 through the interference fit of the connecting column 1-2 and the blind hole 2-1 on the cutting pick body 2.
In the embodiment of the utility model, a group of annular grooves 1-21 are arranged on the outer circle of the connecting column 1-2 of the alloy cutter head 1. The connecting column 1-2 is more firmly connected with the blind hole 2-1 on the cutting pick body 2 in an interference fit manner through a group of annular grooves 1-21.
In the embodiment of the utility model, the generating line of spliced pole 1-2 axial section of alloy tool bit 1 be the arc. The hot processing technology is convenient for installing the connecting column 1-2 and the blind hole 2-1 and forming interference fit between the connecting column 1-2 and the blind hole 2-1.
Referring to the attached figures 2 and 3, the cutting pick is produced by the following process method:
The connecting column 1-2 of the alloy cutter head 1 is arranged in the blind hole 2-1 of the cutting pick body 2.
And 3, reducing and forging the blind hole 2-1 part on the pick body 2 by using a forging die 3 to form interference fit of the connecting column 1-2 and the blind hole 2-1.
And 4, quenching the cutting pick body 2 by utilizing the waste heat of the cutting pick body 2 after the step 3.
In the embodiment of the present invention, in the step 2, the high frequency heating of the blind hole 2-1 on the pick body 2 to the forgeable temperature is performed by using the high frequency induction coil 4 to perform the high frequency heating of the blind hole 2-1.
Claims (3)
1. The utility model provides a heading machine pick structure, includes alloy tool bit and pick body, its characterized in that:
the alloy tool bit (1) comprises: the cutting tool comprises a cutting tool bit (1-1) and a connecting column (1-2), wherein the cutting tool bit (1-1) and the connecting column (1-2) are of an integral structure;
the cutting pick body (2) is provided with a blind hole (2-1) with the size corresponding to that of the connecting column (1-2);
the connecting column (1-2) on the alloy cutter head (1) is inserted into the blind hole (2-1) on the cutting pick body (2) in an interference fit manner to form a whole.
2. A heading machine pick construction according to claim 1, wherein: a group of annular grooves (1-21) are formed in the outer circle of the connecting column (1-2) of the alloy cutter head (1).
3. A heading machine pick construction according to claim 1 or claim 2, wherein: the generatrix of the axial section of the connecting column (1-2) of the alloy cutter head (1) is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021298523.6U CN212264403U (en) | 2020-07-06 | 2020-07-06 | Cutting tooth structure of heading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021298523.6U CN212264403U (en) | 2020-07-06 | 2020-07-06 | Cutting tooth structure of heading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212264403U true CN212264403U (en) | 2021-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021298523.6U Active CN212264403U (en) | 2020-07-06 | 2020-07-06 | Cutting tooth structure of heading machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212264403U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111842752A (en) * | 2020-07-06 | 2020-10-30 | 鹤岗市融鑫矿山机械制造有限责任公司 | Cutting tooth structure of heading machine and production process method |
-
2020
- 2020-07-06 CN CN202021298523.6U patent/CN212264403U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111842752A (en) * | 2020-07-06 | 2020-10-30 | 鹤岗市融鑫矿山机械制造有限责任公司 | Cutting tooth structure of heading machine and production process method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20221208 Address after: 264000 East of Wanggezhuang Village, Xinjia Street, Longkou City, Yantai City, Shandong Province Patentee after: Yantai Rongxin Xichi Mining Technology Co.,Ltd. Address before: 154100 room 101-2, group 12, 35 Committee, Liuhe community, Nanshan District, Hegang City, Heilongjiang Province Patentee before: Hegang Rongxin Mining Machinery Manufacturing Co.,Ltd. |