CN111287745A - Mining cutting tooth - Google Patents
Mining cutting tooth Download PDFInfo
- Publication number
- CN111287745A CN111287745A CN202010175472.6A CN202010175472A CN111287745A CN 111287745 A CN111287745 A CN 111287745A CN 202010175472 A CN202010175472 A CN 202010175472A CN 111287745 A CN111287745 A CN 111287745A
- Authority
- CN
- China
- Prior art keywords
- fixing ring
- groove
- tool bit
- truncated cone
- circular truncated
- 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.)
- Pending
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/19—Means for fixing picks or holders
- E21C35/193—Means for fixing picks or holders using bolts as main fixing elements
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/19—Means for fixing picks or holders
- E21C35/197—Means for fixing picks or holders using sleeves, rings or the like, as main fixing elements
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
A mining cutting pick mainly comprises a cutting pick tool tip, a tool bit handle and a middle part for connecting the cutting pick tool tip and the tool bit handle, wherein a fixed circular truncated cone is arranged at the upper end part of the tool bit handle, the middle part comprises an installation seat, a first fixing ring and a second fixing ring which are sequentially arranged from top to bottom, the shape and the size of an inner ring of the first fixing ring correspond to those of the fixed circular truncated cone and are sleeved on the outer wall of the fixed circular truncated cone, the top of the first fixing ring is higher than that of the fixed circular truncated cone after the first fixing ring is sleeved, and a circular groove for connecting the installation seat is formed by the height difference between the first fixing ring and the fixed circular truncated cone; the top of the mounting seat is provided with a fixing groove for fixing the cutting tooth tip; the bottom of the first fixing ring is provided with a connecting groove, and the second fixing ring is clamped in the connecting groove at the bottom of the first fixing ring through a connecting boss at the top and is connected with the first fixing ring; the novel air conditioner has the characteristics of simple structure, convenience in installation, long service life and the like.
Description
Technical Field
The invention belongs to the technical field of coal mine excavation mechanical engineering, and particularly relates to a mining cutting pick.
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 solve the technical problem of providing a mining cutting pick which has the advantages of simple and reasonable structure, convenient use, high strength and fastness, can increase the wear resistance of the surface of a product, and can improve the service life and the service efficiency of the product.
The invention aims to solve the technical scheme that the mining cutting pick mainly comprises a cutting pick tool tip, a tool bit handle and a middle part for connecting the cutting pick tool tip and the tool bit handle, wherein a fixed circular truncated cone is arranged at the upper end part of the tool bit handle, the middle part comprises an installation seat, a first fixing ring and a second fixing ring which are sequentially arranged from top to bottom, the shape and the size of an inner ring of the first fixing ring correspond to those of the fixed circular truncated cone and are sleeved on the outer wall of the fixed circular truncated cone, the top of the first fixing ring is higher than that of the fixed circular truncated cone after the first fixing ring is sleeved, and a circular groove for connecting the installation seat is formed by the height difference between the first fixing ring and the fixed circular truncated cone; the top of the mounting seat is provided with a fixing groove for fixing the cutting tooth tip; the bottom of the first fixing ring is provided with a connecting groove, and the second fixing ring is connected with the connecting boss at the top in the connecting groove at the bottom of the first fixing ring.
Furthermore, a groove is circumferentially formed in the outer wall of the tool bit handle part, a ring buckle matched with the outer surface of the groove is arranged on the groove, the tool bit handle part can rotate in the ring buckle through the ring buckle, a wavy connecting notch is axially formed in the ring buckle, and a gasket used for fastening the ring buckle and the tool bit handle part is radially arranged on the outer wall of the ring buckle; and the outer wall of the lower end part of the handle part of the tool bit is provided with an external thread, and a locking nut is arranged through the external thread.
Furthermore, the cutting pick tool tip comprises a diamond tool tip exposed outside the fixing groove of the mounting seat and a hard alloy tool bit arranged below the diamond tool tip, and the mounting seat and the first fixing ring are made of hard alloy materials.
Furthermore, the upper and lower outer surfaces of the mounting seat and the first fixing ring are in a streamline shape which gradually extends outwards from top to bottom.
Furthermore, the outer wall of the ring buckle is provided with at least two positioning holes, and the gasket comprises at least two first gaskets and at least two second gaskets which are arranged in parallel.
The invention has the beneficial technical effects that: simple and reasonable structure, convenient use, high strength, high fastness, long service life and high use efficiency, can increase the wear resistance of the surface of a product.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic sectional view A-A of FIG. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention is further described with reference to the accompanying drawings and examples.
As shown in fig. 1-2, the mining cutting pick mainly comprises a cutting pick tool tip 1, a tool bit handle 2 and an intermediate part 3 connecting the cutting pick tool tip 1 and the tool bit handle 2, wherein a fixed circular truncated cone 4 is arranged at the upper end part of the tool bit handle 1, the intermediate part 3 comprises an installation seat 5, a first fixing ring 6 and a second fixing ring 7 which are sequentially arranged from top to bottom, the shape and the size of an inner ring of the first fixing ring 6 correspond to the shape and the size of the fixed circular truncated cone 4 and are sleeved on the outer wall of the fixed circular truncated cone 4, the top of the first fixing ring 6 is higher than the top of the fixed circular truncated cone 4 after being sleeved, and a circular groove for connecting the installation seat 5 is formed by the height difference between the first fixing ring 6 and the fixed circular truncated cone 4; the top of the mounting seat 5 is provided with a fixing groove for fixing the cutting pick tool nose 1; the spread groove has been seted up to the bottom of first solid fixed ring 6, the solid fixed ring 7 of second is in through the connection boss joint at top in the spread groove of first solid fixed ring 6 bottom with first solid fixed ring 6 is connected.
Referring to fig. 1-2, a groove 8 is circumferentially formed in the outer wall of the tool bit shank 2, a buckle 9 matched with the outer surface of the groove 8 is arranged on the groove 8, the buckle 9 enables the tool bit shank 2 to rotate in the buckle 9, a wavy connecting notch 10 is axially formed in the buckle 9, and a gasket 11 for fastening the buckle 9 and the tool bit shank 2 is radially arranged on the outer wall of the buckle 9; an external thread 12 is arranged on the outer wall of the lower end part of the cutter head handle part 2, and a locking nut 13 is arranged through the external thread 12; at least two positioning holes 14 are formed in the outer wall of the ring buckle 9, and the gasket 11 comprises at least two first gaskets 15 and at least two second gaskets 16 which are arranged in parallel.
Referring to fig. 2, the upper and lower outer surfaces of the mounting seat 5 and the first fixing ring 6 are streamline shapes gradually extending outward from top to bottom; the cutting pick tool tip 1 comprises a diamond tool tip 17 exposed outside a fixing groove of the mounting base 5 and a hard alloy tool bit 18 arranged below the diamond tool tip 17, and the mounting base 5 and the first fixing ring 6 are made of hard alloy materials.
The invention 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.
The specific embodiments described herein are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. The utility model provides a mining pick, mainly includes pick knife tip, tool bit stalk portion and connects the intermediate part of pick knife tip and tool bit stalk portion, its characterized in that: the upper end part of the cutter head handle is provided with a fixed circular truncated cone, the middle part of the cutter head handle comprises an installation seat, a first fixing ring and a second fixing ring which are sequentially arranged from top to bottom, the shape and the size of an inner ring of the first fixing ring correspond to those of the fixed circular truncated cone and are sleeved on the outer wall of the fixed circular truncated cone, the top of the first fixing ring is higher than that of the fixed circular truncated cone after the first fixing ring is sleeved, and a circular groove for connecting the installation seat is formed by the height difference between the first fixing ring and the fixed circular truncated cone; the top of the mounting seat is provided with a fixing groove for fixing the cutting tooth tip; the bottom of the first fixing ring is provided with a connecting groove, and the second fixing ring is connected with the connecting boss at the top in the connecting groove at the bottom of the first fixing ring.
2. A mining pick according to claim 1, wherein: the outer wall of the tool bit handle is circumferentially provided with a groove, the groove is provided with a buckle matched with the outer surface of the groove, the buckle can enable the tool bit handle to rotate in the buckle, the buckle is axially provided with a wavy connecting notch, and the outer wall of the buckle is radially provided with a gasket for fastening the buckle and the tool bit handle; and the outer wall of the lower end part of the handle part of the tool bit is provided with an external thread, and a locking nut is arranged through the external thread.
3. A mining pick according to claim 1 or 2, wherein: the cutting pick tool tip comprises a diamond tool tip exposed outside the fixing groove of the mounting seat and a hard alloy tool bit arranged below the diamond tool tip, and the mounting seat and the first fixing ring are made of hard alloy materials.
4. A mining pick according to claim 1 or 2, wherein: the upper and lower outer surfaces of the mounting seat and the first fixing ring are in a streamline shape which gradually extends outwards from top to bottom.
5. A mining pick according to claim 2, wherein: the outer wall of the ring buckle is provided with at least two positioning holes, and the gasket comprises at least two first gaskets and at least two second gaskets which are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010175472.6A CN111287745A (en) | 2020-03-13 | 2020-03-13 | Mining cutting tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010175472.6A CN111287745A (en) | 2020-03-13 | 2020-03-13 | Mining cutting tooth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111287745A true CN111287745A (en) | 2020-06-16 |
Family
ID=71022509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010175472.6A Pending CN111287745A (en) | 2020-03-13 | 2020-03-13 | Mining cutting tooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111287745A (en) |
-
2020
- 2020-03-13 CN CN202010175472.6A patent/CN111287745A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |