CN210768756U - Large-scale mining pick - Google Patents
Large-scale mining pick Download PDFInfo
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- CN210768756U CN210768756U CN201921585878.0U CN201921585878U CN210768756U CN 210768756 U CN210768756 U CN 210768756U CN 201921585878 U CN201921585878 U CN 201921585878U CN 210768756 U CN210768756 U CN 210768756U
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Abstract
The utility model provides a large-scale mining pick, it includes tool bit body and sword tail body, be equipped with a circular connecting seat between tool bit body and the sword tail body, this connecting seat upper portion is equipped with the circular sword groove of unloading of an indent, still is equipped with the trapezoidal transition hypotenuse of round between unloading sword groove and connecting seat, the upper end in the sword groove of unloading is equipped with a work head end, and this work head end comprises working head base and the work head that sets up on unloading sword groove upper portion, the work head base is the round platform form to be equipped with the connecting groove limit in the side edge department in top, the work head is cylindrical, and its top is equipped with a toper tool bit point, and it has simple structure, reasonable, and convenient to use can increase the wearability on product surface, and intensity is big, the fastness is high, can improve characteristics such as product life.
Description
Technical Field
The invention relates to a mining cutting tooth, in particular to a mining cutting tooth which is arranged on a coal mining machine and used for cutting coal rocks, and belongs to the technical field of coal mining machine engineering.
Background
The mining cutting tooth is one of the vulnerable parts in coal mining and roadway tunneling machinery, is a main tool for coal falling and breaking, and has the performance that the performance of the cutting tooth directly influences the exertion of the production capacity of the coal mining machinery, the power consumption, the working stability and the service life of other related parts. The existing mining cutting pick mainly comprises a cutting pick body and a hard alloy tool bit, wherein the hard alloy tool bit is embedded in a concave hole at the end part of the cutting pick body and fixedly connected through brazing. The hard alloy tool bit at the head part of the mining cutting pick has a coal mining effect and good wear resistance, so that a certain wear-resistant mining effect can be achieved, and the service life of the cutting pick is prolonged; but as a cutting pick product for mining, the whole cutting pick extends into a coal mine layer in the specific excavating process, besides the function of forward rotation propelling of the head hard alloy cutter head, the whole pick body, particularly the front end part of the pick body close to and the hard alloy cutter head, is also subjected to more or less strong friction of an ore stratum, because the pick body is generally processed by quenching and tempering medium carbon high-strength alloy steel, the hardness and the strength of the cutting pick body are far lower than those of a hard alloy cutter head embedded in the head, so that the cutting pick body is worn in advance in the working process, thereby influencing the service life of the whole mining cutting pick, and because the cutting head is fixedly welded, the cutting head is very inconvenient to replace, the cutting head can be continuously used only by replacing the whole cutting head, which is very waste, taking to store after use is also a great problem because of the cylindrical body, which is very inconvenient to install and remove.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the mining cutting pick which is simple and reasonable in structure, convenient to use, large in strength, high in fastness and capable of improving the service life and the service efficiency of a product, and the wear resistance of the surface of the product can be improved. The purpose of the invention is achieved by the following technical scheme: a large-scale mining pick comprises a bit body and a tail body, a circular connecting seat is arranged between the bit body and the tail body, the upper part of the connecting seat is provided with an inwards concave circular cutter unloading groove, a circle of trapezoidal transitional oblique edge is arranged between the cutter unloading groove and the connecting seat, the upper end of the cutter unloading groove is provided with a working head end, the working head end consists of a working head base and a working head, the working head base is arranged at the upper part of the cutter unloading groove, the working head base is in a round table shape, a connecting groove edge is arranged at the side edge of the top part, the working head is in a cylindrical shape, the top of the cutter head is provided with a conical cutter head tip, the bottom of the cutter head is provided with a circular connecting edge, the connecting edge is sleeved outside the connecting groove edge and is welded and fixed, a plurality of connecting sheets with concave obliquely-arranged surfaces are arranged between the connecting edges and the working head, the connecting piece plays a role in reinforcing, and the connecting edge, the working head and the connecting tool bit tip are coated with hard alloy layers.
Preferably, the method comprises the following steps: the knife tail body is cylindrical, a supporting plate for connecting a circular connecting seat is arranged at the top of the knife tail body, a layer of snap ring with the perimeter larger than that of the knife tail body is coated outside the knife tail body and is fastened on the knife tail body through a gasket, a wavy connecting notch is formed in the joint of the snap ring, the length of the knife tail body is longer than that of the snap ring, and at least one positioning hole is formed in the snap ring.
Preferably, the method comprises the following steps: the tail part of the tool bit, the round connecting seat and the working head base are integrally formed.
The invention belongs to an improvement of the prior art, and has the characteristics of simple and reasonable structure, convenient use, high strength, high fastness, long service life, high use efficiency and the like, and can increase the wear resistance of the surface of a product.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of fig. 1 from direction a-a.
Detailed Description
The invention will be described in detail below with reference to the following figures: as described in FIGS. 1-2: a large-scale mining cutting pick comprises a cutting head body 1 and a cutting tail body 2, wherein a circular connecting seat 3 is arranged between the cutting head body 1 and the cutting tail body 2, an inwards concave circular cutter unloading groove 4 is arranged at the upper part of the connecting seat 3, a circle of trapezoidal transitional inclined edge 5 is also arranged between the cutter unloading groove 4 and the connecting seat 3, a working head end 6 is arranged at the upper end of the cutter unloading groove 4, the working head end 6 consists of a working head base 7 and a working head 8 which are arranged at the upper part of the cutter unloading groove, the working head base 7 is in a circular table shape, a connecting groove edge 9 is arranged at the side edge of the top part, the working head 8 is in a cylindrical shape, a conical cutting head tip 10 is arranged at the top part, a circular connecting edge 11 is arranged at the bottom part, the connecting edge 11 is sleeved outside the connecting groove 9 and is welded and fixed, a plurality of connecting sheets 12 with concave oblique arrangement surfaces, the connecting piece 12 plays a role in reinforcement, a hard alloy layer 18 is coated on the connecting edge 12, the working head 8 and the connecting tool bit tip 10, the tool bit tail body 2 is cylindrical, a supporting disc 13 for connecting a circular connecting seat is arranged at the top of the tool bit tail body, a layer of snap ring 14 with the circumference larger than that of the tool bit tail body 2 is coated outside the tool bit tail body 2, the snap ring 14 is fastened on the tool bit tail body 2 through a gasket 15, a wavy connecting notch 16 is arranged at the connecting position of the snap ring 14, the length of the tool bit tail body 2 is longer than that of the snap ring 14, at least one positioning hole 17 is formed in the snap ring 14, and the tool bit tail 2, the circular connecting seat 3 and the working head base 6.
According to the invention, the hard alloy layer is arranged at the front end taper angle head part of the tool bit body, the tool bit and the tool bit seat are in a sleeved connection mode, so that the tool bit is more convenient to replace, the connecting sheet is additionally arranged between the tool bit tip and the tool bit seat and is equivalent to a reinforcing rib, so that the tool bit can be more stable and durable, the wear resistance of a product is increased, and the service life of the product is prolonged; in addition, the wall surface of the cutter tail body is covered with the retaining ring, so that the cutter tail is more convenient to take.
Claims (3)
1. A large-scale mining cutting pick comprises a cutting head body and a cutting tail body, and is characterized in that a circular connecting seat is arranged between the cutting head body and the cutting tail body, an inwards concave circular cutter unloading groove is arranged at the upper part of the connecting seat, a trapezoidal transitional oblique edge is arranged between the cutter unloading groove and the connecting seat, a working head end is arranged at the upper end of the cutter unloading groove and consists of a working head base and a working head which are arranged at the upper part of the cutter unloading groove, the working head base is in a round platform shape, a connecting groove edge is arranged at the side edge of the top part of the working head, the working head is in a cylindrical shape, a conical cutting head tip is arranged at the top of the working head, a circular connecting edge is arranged at the bottom of the working head end, the connecting edge is sleeved outside the connecting groove edge and is welded and fixed, a plurality of connecting pieces with concave oblique arrangement surfaces are, and hard alloy layers are coated on the connecting edge, the working head and the connecting tool bit tip.
2. The large mining pick according to claim 1, wherein the body of the tail is cylindrical, the top of the body of the tail is provided with a support plate for connecting with a circular connecting seat, the body of the tail is wrapped with a retaining ring having a larger circumference than the body of the tail, and is fastened to the body of the tail by a washer, the joint of the retaining ring is provided with a wave-shaped connecting notch, the length of the body of the tail is longer than that of the retaining ring, and the retaining ring is provided with at least one positioning hole.
3. The large mining pick of claim 1, wherein the head tail, the circular connection seat and the head base are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921585878.0U CN210768756U (en) | 2019-09-23 | 2019-09-23 | Large-scale mining pick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921585878.0U CN210768756U (en) | 2019-09-23 | 2019-09-23 | Large-scale mining pick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210768756U true CN210768756U (en) | 2020-06-16 |
Family
ID=71037610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921585878.0U Active CN210768756U (en) | 2019-09-23 | 2019-09-23 | Large-scale mining pick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210768756U (en) |
-
2019
- 2019-09-23 CN CN201921585878.0U patent/CN210768756U/en active Active
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