CN220566079U - Cutting pick with umbrella-shaped structure tooth shoe - Google Patents
Cutting pick with umbrella-shaped structure tooth shoe Download PDFInfo
- Publication number
- CN220566079U CN220566079U CN202320144402.3U CN202320144402U CN220566079U CN 220566079 U CN220566079 U CN 220566079U CN 202320144402 U CN202320144402 U CN 202320144402U CN 220566079 U CN220566079 U CN 220566079U
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- Prior art keywords
- tooth
- umbrella
- tooth holder
- pick
- holder
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- 230000006978 adaptation Effects 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 7
- 238000005299 abrasion Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000009991 scouring Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The utility model discloses a cutting pick with umbrella-shaped structure tooth shoes, which comprises a tooth holder and the tooth shoes, wherein the tooth holder is provided with a mounting hole, the tooth shoes comprise umbrella-shaped shoulders and cylindrical handle bodies, the cylindrical handle bodies are embedded in the mounting hole, the lower ends of the umbrella-shaped shoulders are provided with inner taper sleeve surfaces, the tooth holder is provided with an outer conical surface, the inner taper sleeve surfaces of the umbrella-shaped shoulders are sleeved on the outer conical surface of the tooth holder, and the cutting pick bodies are embedded in the tooth shoes. Compared with the prior art, the utility model has the advantages that: the application greatly reduces the situation of stress stretching deformation of the inner hole of the tooth holder; in the application, the outer wall of the tooth holder can be better protected in the use process, so that the scouring abrasion of coal flow to the tooth holder is greatly reduced; the umbrella-shaped structure tooth shoe in the application is in a non-rotating mode, and the situation that the inner hole of the tooth holder is excessively worn does not occur.
Description
Technical Field
The utility model relates to the technical field of mining machinery, in particular to a cutting pick with umbrella-shaped structure boots.
Background
The cutting system is used as a cutting structure of a spiral roller of the coal mining machine, a cutting pick body is used for cutting coal wall coal, a tooth shoe is used for protecting an inner hole of a tooth holder, and the tooth holder is used as a carrier for installation. In order to improve the cutting performance and the service life of the pick, the pick-shaped pick body is designed into a cylindrical structure and can automatically rotate in a tooth boot or a tooth seat hole. Except for the toothholder with smaller size, the rest toothholders adopt the boots to connect the transition cutting pick and the toothholder, so that the transition abrasion of the inner hole of the toothholder is reduced. The tooth holder is a mounting carrier of the cutting system, and the inner hole, the axial direction, the appearance and the like of the tooth holder are seriously worn or deformed, so that the whole cutting system can be invalid. At present, the tooth boots are divided into rotatable tooth boots and non-rotatable tooth boots, and the two tooth boot structures are composed of a cylindrical handle part and a mushroom head-shaped shoulder part, so that the upper end face of the tooth seat can be protected to a certain extent; however, under the condition that the cutting pick is stressed, the two types of tooth shoes can reversely stretch the inner hole of the tooth holder in the cutting direction, so that the inner hole of the tooth holder is stretched to an elliptic structure; meanwhile, the situation of transitional abrasion of the inner hole of the tooth holder can also occur in the use process of the rotatable tooth boot; thereby reducing the service life of the tooth holder and shortening the service cycle of the cutting system.
Disclosure of Invention
The utility model aims to overcome the technical defects and provide a cutting pick with umbrella-shaped structure boots.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the utility model provides a pick with umbrella-shaped structure tooth boots, includes toothholder and tooth boots, be equipped with the mounting hole on the toothholder, the tooth boots includes umbrella-shaped shoulder and cylinder handle body, the cylinder handle body inlays and establishes in the mounting hole, the lower extreme of umbrella-shaped shoulder is equipped with interior taper sleeve face, be equipped with the outer conical surface on the toothholder and the interior taper sleeve face cover of umbrella-shaped shoulder is established on the outer conical surface of toothholder, the inside embedding of tooth boots has the pick body.
As an improvement, the pick body comprises a pick head, a tooth handle is arranged at the lower end of the pick head, the tooth handle is embedded into a tooth boot, and a wear-resistant cutter head is arranged at the upper end of the pick head.
As an improvement, the umbrella-shaped shoulder is provided with an opening matched with the tooth holder.
As an improvement, the wear-resistant tool bit is made of hard alloy.
Compared with the prior art, the utility model has the advantages that: the umbrella-shaped structure tooth shoe can be arranged on the existing tooth seat model, the machined inner conical sleeve surface is matched with the tooth seat outer conical surface with rough surface, the structural locking condition can not be formed, and the tooth shoe can be replaced at any time; according to the umbrella-shaped structure tooth shoe, the mode of cutting the inner hole of the forced stretching tooth holder by the original cutting pick is improved to the mode of stretching the outer wall of the tooth holder, so that the condition of forced stretching deformation of the inner hole of the tooth holder is greatly reduced; in the tooth boot with the umbrella-shaped structure, the end face of the tooth seat is directly stressed, and the external wall of the tooth seat is stressed, so that the tooth boot is more tightly matched with the tooth seat in a stressed manner, and the occurrence of axial pressure deficiency of the tooth seat is greatly reduced; the umbrella-shaped shoulder part in the application is larger than the outline dimension of the tooth holder, so that the outer wall of the tooth holder can be better protected in the use process, and the scouring abrasion of coal flow to the tooth holder is greatly reduced; the umbrella-shaped structure tooth shoe in the application is in a non-rotating form and cannot excessively abrade the inner hole of the tooth holder.
Drawings
Fig. 1 is a schematic view of the exterior of a pick of the present utility model having an umbrella-shaped structured shoe.
Fig. 2 is a schematic front view of the internal structure of a pick with an umbrella-shaped structural shoe of the present utility model.
Fig. 3 is a schematic view of the construction of a tooth shoe in a pick having an umbrella-shaped construction of the tooth shoe of the present utility model.
As shown in the figure: 1. 2 parts of a tooth holder, 201 parts of a tooth boot, 201 parts of an umbrella-shaped shoulder, 202 parts of a cylindrical handle body, 203 parts of an inner cone sleeve surface, 3 parts of a cutting pick body, 301 parts of a cutting pick head, 302 parts of a tooth handle, 303 parts of a wear-resistant tool bit, 4 parts of an opening.
Detailed Description
Specific embodiments of the present utility model will be further described below with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals.
It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
In order to make the contents of the present utility model more clearly understood, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Referring to fig. 1-3, a cutting pick with umbrella-shaped structure tooth shoes comprises a tooth holder 1 and a tooth shoe 2, wherein a mounting hole is formed in the tooth holder 1, the tooth shoe 2 comprises an umbrella-shaped shoulder 201 and a cylindrical handle 202, the cylindrical handle 202 is embedded in the mounting hole, an inner taper sleeve surface 203 is arranged at the lower end of the umbrella-shaped shoulder 201, an outer conical surface is arranged on the tooth holder 1, the inner taper sleeve surface 203 of the umbrella-shaped shoulder 201 is sleeved on the outer conical surface of the tooth holder 1, the cutting pick body 3 is embedded in the tooth shoe 2, the inner taper sleeve surface 203 is matched with the outer conical surface of the tooth holder 1 with rough surfaces, the structural locking condition cannot be formed, the tooth shoe can be replaced at any time, the umbrella-shaped shoulder 201 can better protect the outer wall of the tooth holder 1, and the abrasion caused by coal flow to the tooth holder 1 is greatly reduced in the use process.
In one embodiment, the pick body 3 comprises a pick head 301, a handle 302 is arranged at the lower end of the pick head 301, the handle 302 is embedded in the tooth boot 2, and a wear-resistant tool bit 303 is arranged at the upper end of the pick head 301.
In one embodiment, the umbrella-shaped shoulder 201 is provided with an opening 4 adapted to the tooth holder 1.
In one embodiment, the wear-resistant bit 303 is made of cemented carbide, wherein the wear-resistant bit 303 is made of cemented carbide to improve the wear resistance of the entire wear-resistant bit 303, thereby improving the service life of the entire pick.
Working principle: the umbrella-shaped structure tooth shoe 2 in the application can be installed on the existing tooth holder 1 model, and the machined inner conical sleeve surface 203 and the outer conical surface of the tooth holder 1 with rough surfaces cannot form a structural locking condition, so that the tooth holder can be replaced at any time; according to the umbrella-shaped structure tooth shoe 2 in the application, the mode of cutting the inner hole of the stressed stretching tooth holder 1 by the original cutting pick is changed into the mode of stretching the outer wall of the tooth holder, so that the condition of stressed stretching deformation of the inner hole of the tooth holder 1 is greatly reduced; in the tooth boot 2 with the umbrella-shaped structure, the end face of the tooth seat 1 is directly stressed, and the stress of the outer wall of the tooth seat 1 is changed, so that the more the tooth boot 2 is in stress fit with the tooth seat 1, the more tightly the tooth boot is, and the occurrence of the axial pressure deficiency condition of the tooth seat 1 is greatly reduced; the umbrella-shaped shoulder 201 in the application is larger than the outline dimension of the tooth holder 1, so that the outer wall of the tooth holder 1 can be better protected in the use process, and the scouring abrasion of coal flow to the tooth holder 1 is greatly reduced; the umbrella-shaped structure tooth shoe 2 in the application is in a non-rotating form and cannot excessively abrade the inner hole of the tooth holder 1.
The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.
Claims (1)
1. The utility model provides a pick with umbrella-shaped structure tooth boots, includes toothholder (1) and tooth boots (2), its characterized in that, be equipped with the mounting hole on toothholder (1), tooth boots (2) include umbrella-shaped shoulder (201) and cylinder handle body (202), cylinder handle body (202) are inlayed and are established in the mounting hole, the lower extreme of umbrella-shaped shoulder (201) is equipped with interior taper sleeve face (203), be equipped with the interior taper sleeve face (203) cover of outer conical surface and umbrella-shaped shoulder (201) on toothholder (1) and establish on the outer conical surface of toothholder (1), the inside embedding of tooth boots (2) has pick body (3), be equipped with on umbrella-shaped shoulder (201) with opening (4) of toothholder (1) looks adaptation, pick body (3) are including pick head (301), the lower extreme of pick head (301) is equipped with tooth handle (302), in pick handle (302) embedding tooth boots (2), the upper end (301) is equipped with carbide tool bit (303), wear-resisting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320144402.3U CN220566079U (en) | 2023-02-07 | 2023-02-07 | Cutting pick with umbrella-shaped structure tooth shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320144402.3U CN220566079U (en) | 2023-02-07 | 2023-02-07 | Cutting pick with umbrella-shaped structure tooth shoe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220566079U true CN220566079U (en) | 2024-03-08 |
Family
ID=90090828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320144402.3U Active CN220566079U (en) | 2023-02-07 | 2023-02-07 | Cutting pick with umbrella-shaped structure tooth shoe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220566079U (en) |
-
2023
- 2023-02-07 CN CN202320144402.3U patent/CN220566079U/en active Active
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