CN210768760U - High-strength corrosion-resistant tooth sleeve of coal cutting tooth - Google Patents
High-strength corrosion-resistant tooth sleeve of coal cutting tooth Download PDFInfo
- Publication number
- CN210768760U CN210768760U CN201921785414.4U CN201921785414U CN210768760U CN 210768760 U CN210768760 U CN 210768760U CN 201921785414 U CN201921785414 U CN 201921785414U CN 210768760 U CN210768760 U CN 210768760U
- Authority
- CN
- China
- Prior art keywords
- tooth
- pick
- wear
- resistant
- annular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Crushing And Grinding (AREA)
Abstract
The utility model discloses a corrosion-resistant facing of high strength of coal pick relates to coal mine production equipment technical field, including the facing body, the head of facing body is equipped with the wear-resisting arch of annular, the wear-resisting arch of annular includes first rake, second rake and parallel portion, first rake is located the wear-resisting bellied head of annular, the second rake is located the wear-resisting bellied middle part of annular, the parallel portion is located the wear-resisting bellied afterbody of annular, the pick constant head tank has been seted up at the internal surface middle part of facing body, the fixed slot has been seted up to the surface afterbody of facing body. The utility model discloses a be provided with the wear-resisting arch of annular on the tooth cover body, can strengthen the intensity of tooth cover body, increase the wearability of tooth cover body, the life of extension tooth cover body has reduced the change frequency of tooth cover body, and reduce cost has improved work efficiency, and structural design is reasonable, and simple structure does benefit to and uses widely.
Description
Technical Field
The utility model relates to a coal mine production equipment technical field, in particular to corrosion-resistant tooth cover of high strength of coal pick.
Background
In the prior art, a cutting pick of a coal mining machine mainly comprises a cutting pick seat, a cutting pick sleeve, a cutting pick base body and a clamp spring, wherein a hard alloy pick head is arranged at the outer end part of the cutting pick base body, a clamp spring groove is formed in the periphery of the lower part of the cutting pick base body, the cutting pick base body is inserted into the cutting pick sleeve and is positioned through the clamp spring arranged in the clamp spring groove, and the cutting pick base body freely rotates in the cutting pick sleeve.
The failure modes of the cutting pick matrix and the cutting pick sleeve in the process of cutting rocks and coal beds mainly have two conditions: one is the abrasion of the cutting pick matrix and the hard alloy tooth head thereof, and as the hard alloy head is embedded on the outer end surface of the cutting pick matrix, the hard alloy tooth head can fall off in the process of rotating along with the cutting part, so that the excavating efficiency is obviously reduced; the other is that the pick block and pick sleeve wear and fail to provide effective support for the pick body, thereby resulting in a significant reduction in digging efficiency.
Most of existing coal cutting tooth sleeves are straight cylinder type, the strength of the head is low, the abrasion is easy, the service life is short, the replacement is needed frequently, the investment cost is increased, and the working efficiency is reduced.
Therefore, it is necessary to develop a high strength corrosion resistant sleeve for a coal cutting pick to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a corrosion-resistant facing of high strength of coal pick to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a high-strength corrosion-resistant tooth sleeve of a coal cutting pick comprises a tooth sleeve body, wherein an annular wear-resistant bulge is arranged at the head of the tooth sleeve body and comprises a first inclined part, a second inclined part and a parallel part, the first inclined part is positioned at the head of the annular wear-resistant bulge, the second inclined part is positioned in the middle of the annular wear-resistant bulge, and the parallel part is positioned at the tail of the annular wear-resistant bulge;
the middle part of the inner surface of the gear sleeve body is provided with a cutting tooth positioning groove, and the tail part of the outer surface of the gear sleeve body is provided with a fixing groove.
Optionally, the length of the gear sleeve body is 117.5mm, the outer diameter of the gear sleeve body is 45mm, and the inner diameter of the gear sleeve body is 30.2 mm.
Optionally, the inclination angle of the first inclined portion is 45 °, and the transverse length of the first inclined portion is 2.5 mm.
Optionally, the second inclined portion has an inclination angle of 22 °, and the transverse length of the second inclined portion is 16.1 mm.
Optionally, the parallel portion is parallel to the gear sleeve body, the length of the parallel portion is 9.4mm, and the outer diameter of the parallel portion is 75 mm.
Optionally, the distance between the pick positioning groove and the head of the pick sleeve body is 54.2mm, the transverse length of the pick positioning groove is 7mm, and the depth of the pick positioning groove is 2 mm.
Optionally, the distance between the fixing groove and the tail of the pick sleeve body is 6mm, the transverse length of the pick positioning groove is 3.2mm, and the depth of the fixing groove is 1.5 mm.
The utility model discloses a technological effect and advantage:
the utility model discloses a be provided with the wear-resisting arch of annular on the tooth cover body, can strengthen the intensity of tooth cover body, increase the wearability of tooth cover body, the life of extension tooth cover body has reduced the change frequency of tooth cover body, and reduce cost has improved work efficiency, and structural design is reasonable, and simple structure does benefit to and uses widely.
Drawings
Fig. 1 is a schematic cross-sectional view of the present invention.
In the figure: 1. a gear sleeve body; 2. an annular wear-resistant projection; 3. a first inclined portion; 4. a second inclined portion; 5. a parallel portion; 6. a cutting pick positioning groove; 7. and fixing the grooves.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
The utility model provides a high-strength corrosion-resistant tooth sleeve of a coal cutting pick as shown in figure 1, which comprises a tooth sleeve body 1, wherein the tooth sleeve body 1 is subjected to heat treatment HRC (42-46 degrees), the length of the tooth sleeve body 1 is 117.5mm, the outer diameter of the tooth sleeve body 1 is 45mm, the inner diameter of the tooth sleeve body 1 is 30.2mm, the head of the tooth sleeve body 1 is provided with an annular wear-resistant bulge 2, the tooth sleeve body 1 and the annular wear-resistant bulge 2 are integrally formed, the strength of the tooth sleeve body 1 can be enhanced, the wear resistance of the tooth sleeve body 1 is enhanced, the service life of the tooth sleeve body 1 is prolonged, the replacement frequency of the tooth sleeve body 1 is reduced, the cost is reduced, the working efficiency is improved, the annular wear-resistant bulge 2 comprises a first inclined part 3, a second inclined part 4 and a parallel part 5, the first inclined part 3 is positioned at the head of the annular wear-resistant bulge 2, the inclination angle of the first inclined part 3 is 45 degrees, the transverse length of, the second inclined part 4 is positioned in the middle of the annular wear-resistant protrusion 2, the inclination angle of the second inclined part 4 is 22 degrees, the transverse length of the second inclined part 4 is 16.1mm, the parallel part 5 is positioned at the tail part of the annular wear-resistant protrusion 2, the parallel part 5 is arranged in parallel with the gear sleeve body 1, the length of the parallel part 5 is 9.4mm, and the outer diameter of the parallel part 5 is 75 mm;
pick constant head tank 6 has been seted up at the internal surface middle part of facing body 1, and pick constant head tank 6 is 54.2mm with the distance of facing body 1 head, and the transverse length of pick constant head tank 6 is 7mm, and the degree of depth of pick constant head tank 6 is 2mm, and fixed slot 7 has been seted up to the surface afterbody of facing body 1, and the distance of fixed slot 7 and facing body 1 afterbody is 6mm, and the transverse length of pick constant head tank 6 is 3.2mm, and the degree of depth of fixed slot 7 is 1.5 mm.
This practical theory of operation:
the utility model discloses a be provided with wear-resisting arch 2 of annular on tooth cover body 1, can strengthen tooth cover body 1's intensity, increase tooth cover body 1's wearability, prolong tooth cover body 1's life has reduced tooth cover body 1's change frequency, and reduce cost has improved work efficiency.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (7)
1. The utility model provides a corrosion-resistant facing of high strength of coal pick, includes facing body (1), its characterized in that: the head of the gear sleeve body (1) is provided with an annular wear-resistant bulge (2), the annular wear-resistant bulge (2) comprises a first inclined part (3), a second inclined part (4) and a parallel part (5), the first inclined part (3) is located at the head of the annular wear-resistant bulge (2), the second inclined part (4) is located in the middle of the annular wear-resistant bulge (2), and the parallel part (5) is located at the tail of the annular wear-resistant bulge (2);
the middle part of the inner surface of the gear sleeve body (1) is provided with a cutting pick positioning groove (6), and the tail part of the outer surface of the gear sleeve body (1) is provided with a fixing groove (7).
2. The high strength corrosion resistant tooth sleeve of a coal cutting pick of claim 1, wherein:
the length of tooth cover body (1) is 117.5mm, the external diameter of tooth cover body (1) is 45mm, the internal diameter of tooth cover body (1) is 30.2 mm.
3. The high strength corrosion resistant tooth sleeve of a coal cutting pick of claim 1, wherein:
the inclination angle of the first inclined part (3) is 45 degrees, and the transverse length of the first inclined part (3) is 2.5 mm.
4. The high strength corrosion resistant tooth sleeve of a coal cutting pick of claim 1, wherein:
the inclination angle of the second inclined part (4) is 22 degrees, and the transverse length of the second inclined part (4) is 16.1 mm.
5. The high strength corrosion resistant tooth sleeve of a coal cutting pick of claim 1, wherein:
parallel portion (5) and tooth cover body (1) parallel arrangement, the length of parallel portion (5) is 9.4mm, the external diameter of parallel portion (5) is 75 mm.
6. The high strength corrosion resistant tooth sleeve of a coal cutting pick of claim 1, wherein:
the distance between the cutting pick positioning groove (6) and the head part of the cutting pick sleeve body (1) is 54.2mm, the transverse length of the cutting pick positioning groove (6) is 7mm, and the depth of the cutting pick positioning groove (6) is 2 mm.
7. The high strength corrosion resistant tooth sleeve of a coal cutting pick of claim 1, wherein:
the distance between the fixing groove (7) and the tail of the pick sleeve body (1) is 6mm, the transverse length of the pick positioning groove (6) is 3.2mm, and the depth of the fixing groove (7) is 1.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921785414.4U CN210768760U (en) | 2019-10-23 | 2019-10-23 | High-strength corrosion-resistant tooth sleeve of coal cutting tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921785414.4U CN210768760U (en) | 2019-10-23 | 2019-10-23 | High-strength corrosion-resistant tooth sleeve of coal cutting tooth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210768760U true CN210768760U (en) | 2020-06-16 |
Family
ID=71041946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921785414.4U Active CN210768760U (en) | 2019-10-23 | 2019-10-23 | High-strength corrosion-resistant tooth sleeve of coal cutting tooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210768760U (en) |
-
2019
- 2019-10-23 CN CN201921785414.4U patent/CN210768760U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1011995B (en) | Hard alloy cutter bit | |
| CN107916931B (en) | Heading machine cutting head for hard rock working condition and heading machine | |
| CN210768760U (en) | High-strength corrosion-resistant tooth sleeve of coal cutting tooth | |
| CN108044317B (en) | Machining process of high-abrasion-resistance shield machine hob ring | |
| CN103603663A (en) | Novel wear-resistant pickaxe-shaped cutting pick used for heading machine | |
| US20200024903A1 (en) | Matrix body pdc drill bit | |
| CN214331219U (en) | Sliding bearing structure capable of preventing rotation | |
| CN219012594U (en) | Toothholder, cutting pick assembly, roller and coal mining machine | |
| CN104314565A (en) | Powerful drum of coal cutter | |
| CN210768759U (en) | A tunnelling tooth for coal mine mining machine | |
| CN203441500U (en) | Rotatable tearing cutter for shield tunneling machine | |
| CN203978434U (en) | A kind of pick | |
| CN214944236U (en) | Embedded sharp pick | |
| CN207568604U (en) | A kind of cutting head of roadheader pick and toothholder assembly | |
| CN218062309U (en) | Novel cutting pick | |
| CN214886951U (en) | Synchronous formula junk mill of milling | |
| CN105507913A (en) | Hard-rock integral cutter | |
| CN211648148U (en) | Wear-resistant tooth holder for heavy drum of coal mining machine | |
| CN215907841U (en) | Spiral drum of ultra-thin coal seam coal mining machine | |
| CN219665074U (en) | Continuous casting roller sealing structure | |
| CN219972333U (en) | Corrugated sugarcane tearing machine cutter | |
| CN206468351U (en) | A kind of pick toothholder of excavator | |
| CN217421161U (en) | Novel coal cutter cutting tooth | |
| CN211950689U (en) | High-strength durable piston ring | |
| CN214221182U (en) | Pick-shaped cutting tooth for ore cutting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |