CN209385128U - A kind of internal screw thread cold charge wear resistant cutting pick - Google Patents
A kind of internal screw thread cold charge wear resistant cutting pick Download PDFInfo
- Publication number
- CN209385128U CN209385128U CN201822017422.6U CN201822017422U CN209385128U CN 209385128 U CN209385128 U CN 209385128U CN 201822017422 U CN201822017422 U CN 201822017422U CN 209385128 U CN209385128 U CN 209385128U
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- China
- Prior art keywords
- matrix
- screw thread
- alloy head
- hard alloy
- wear resistant
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Abstract
The utility model relates to pick technical fields, and disclose a kind of internal screw thread cold charge wear resistant cutting pick, including matrix, the middle part of described matrix left side and its integrally formed with connecting rod, the middle part of described matrix right side laterally offers a matrix screw thread through-hole, the inner cavity of the matrix screw thread through-hole is fixedly connected with a hard alloy head, circumferentially with it integrally formed with alloy head threaded body on the body of rod of the hard alloy head.The internal screw thread cold charge wear resistant cutting pick, pass through the design of hard alloy head, alloy head threaded body and matrix screw thread through-hole, the design scheme has the advantages that technological precedence, production cost be low, easy to operate and high production efficiency, by the way that the connection type of hard alloy head and matrix is changed to threaded connection, hard alloy head can effectively be reduced and be heated and be brazed stress, to improve the service life of entire pick, while decreasing electric energy consumed by conventional brazing slow cooling.
Description
Technical field
The utility model relates to pick technical field, specially a kind of internal screw thread cold charge wear resistant cutting pick.
Background technique
Pick is that cutlery used in tunnelling machinery, the superiority and inferiority of pick quality directly affect in coal mining machine and mine
The efficiency of digger and the production cost of enterprise, the increase with people to the energy especially coal demand, in order to improve digging
The power of efficiency, coalcutter constantly increases, higher and higher to the quality requirement of pick, as coal winning machine cutting bit material, it is desirable that its
Intensity, hardness and wearability with higher, high bending strength and corrosion resistance, it is disconnected to prevent pick use process from generating
It splits, be bent, deforming and premature wear failure, the pick performance of domestic manufacturer's production at present cannot largely meet the requirements, cause
The units such as coal mining industry, tunnelling engineering, road maintenance mostly use greatly the pick of import, and import pick price is high,
Cost is high, in the case of especially present recessed market, how to meet to reduce underground mining cost and need to develop one kind and replace
There is critically important meaning for the high-quality pick of import.
The pick of generally conventional technique is combined by being brazed between hard alloy head and pick matrix, is brazed
It needs hard alloy head and matrix being heated to 900 DEG C or more in the process, hard alloy head overheat is easily caused to generate in this way
Micro-crack, and the stress for being brazed generation also generates certain side effect to hard alloy head, and we have proposed in one kind as a result,
Screw thread cold charge wear resistant cutting pick.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of internal screw thread cold charge wear resistant cutting pick, and it is resistance to have pick
The advantages of mill, long service life, solve the problems, such as that original pick service life is short.
(2) technical solution
To realize that above-mentioned pick is wear-resisting, purpose with long service life, the utility model is provided the following technical solutions: in one kind
Screw thread cold charge wear resistant cutting pick, including matrix, the middle part of described matrix left side and its integrally formed with connecting rod, described matrix is right
The middle part of side laterally offers a matrix screw thread through-hole, and the inner cavity of the matrix screw thread through-hole is fixedly connected with a hard alloy
Head, circumferentially with it integrally formed with alloy head threaded body on the body of rod of the hard alloy head.
It is preferably, on the body of rod of the connecting rod and fluted far from circumferentially laterally being opened up at the position on the left of matrix,
A circlip is socketed on the body of rod of the connecting rod and at the position in groove.
Preferably, the whole of the circlip is integrally formed using " manganese steel ", and the both ends of the circlip are a kind of reciprocal correspondence
Ladder meander-shaped.
Preferably, described matrix have passed through wear-resisting cladding processing, and the left side of the matrix is a kind of to top and bottom protrusion
Elliptical shape, be gradually reduced on the right side of the matrix and carry out transition at a kind of arc-shaped.
Preferably, the face view of the hard alloy head is a kind of " bullet " head shapes, and the hard alloy head passes through institute
Alloy head threaded body is stated to be threaded in the matrix screw thread through-hole of matrix.
(3) beneficial effect
Compared with prior art, the utility model provides a kind of internal screw thread cold charge wear resistant cutting pick, has following beneficial to effect
Fruit:
The internal screw thread cold charge wear resistant cutting pick, by the design of hard alloy head, alloy head threaded body and matrix screw thread through-hole,
The design scheme has the advantages that technological precedence, production cost be low, easy to operate and high production efficiency, by by hard alloy head
It is changed to threaded connection with the connection type of matrix, hard alloy head can be effectively reduced and be heated and be brazed stress, to mention
The service life of high entire pick, while electric energy consumed by conventional brazing slow cooling is decreased, the energy is saved, while also subtracting
The waste for having lacked material improves production efficiency, while by the design of circlip, can effectively play and prevent in connecting rod
The effect of part axial movement, ensure that the normal use of entire pick, pass through the appearance that these are designed, effective solution original
The short problem of some pick service life.
Detailed description of the invention
Fig. 1 is the utility model positive structure diagram；
Fig. 2 is the utility model matrix and matrix screw thread through-hole side structure schematic view；
Fig. 3 is the utility model hard alloy head and alloy head threaded body structural schematic diagram；
Fig. 4 is the utility model hard alloy head and alloy head threaded body side structure schematic view.
In figure: 1, matrix；2, connecting rod；3, groove；4, circlip；5, hard alloy head；6, alloy head threaded body；7, matrix
Tapped through hole.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1-4, a kind of internal screw thread cold charge wear resistant cutting pick, including matrix 1, the middle part of 1 left side of matrix and one
Body formed to have connecting rod 2, the middle part of 1 right side of matrix laterally offers a matrix screw thread through-hole 7, the matrix screw thread through-hole 7
Inner cavity is fixedly connected with a hard alloy head 5, circumferentially with it integrally formed with alloy head thread on the body of rod of hard alloy head 5
Body 6.
Fluted 3 are circumferentially laterally opened up on the body of rod of connecting rod 2 and at the position far from 1 left side of matrix, connecting rod 2
A circlip 4 is socketed on the body of rod and at the position in groove 3, the appearance of the design can effectively play prevention connection
The effect of part axial movement on bar 2.
The whole of circlip 4 is integrally formed using " manganese steel ", and the both ends of circlip 4 are a kind of mutual corresponding ladder indentation
Shape, the appearance of the design can effectively improve the service life of circlip 4.
Matrix 1 have passed through wear-resisting cladding processing, and the left side of the matrix 1 is a kind of ellipse to top and bottom protrusion
The right side of shape, the matrix 1, which is gradually reduced and carries out transition at a kind of arc-shaped, can be more convenient work by the appearance of the design
Make use of the personnel to matrix 1, while ensure that the service life of matrix 1.
The face view of hard alloy head 5 is a kind of " bullet " head shapes, and hard alloy head 5 passes through 6 spiral shell of alloy head threaded body
Line is connected in the matrix screw thread through-hole 7 of matrix 1, the appearance of the design, can more effectively make entire 5 screw thread of hard alloy head
It is connected to the right side of matrix 1, to more effectively carry out relevant process flow.
Working principle: by the way that hard alloy head 5 to be tightened in matrix screw thread through-hole 7, hard alloy head 5 and matrix are realized
1 fixation, then staff can carry out relevant operation to the pick.
In conclusion the internal screw thread cold charge wear resistant cutting pick, passes through hard alloy head 5, alloy head threaded body 6 and matrix screw thread
The design of through-hole 7, the design scheme have the advantages that technological precedence, production cost be low, easy to operate and high production efficiency, pass through
The connection type of hard alloy head 5 and matrix 1 is changed to threaded connection, can effectively reduce hard alloy head 5 it is heated and
It is brazed stress, to improve the service life of entire pick, while decreasing electric energy consumed by conventional brazing slow cooling, is saved
The energy, while the waste of material is decreased, production efficiency is improved, while passing through the design of circlip 4, can effectively risen
To the effect of the part axial movement prevented in connecting rod 2, the normal use of entire pick ensure that, pass through going out for these designs
It is existing, the effective solution short problem of original pick service life.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of internal screw thread cold charge wear resistant cutting pick, including matrix (1), it is characterised in that: the middle part of described matrix (1) left side with
It laterally offers a matrix screw thread through-hole (7), the base integrally formed with connecting rod (2), the middle part of described matrix (1) right side
The inner cavity of body tapped through hole (7) is fixedly connected with a hard alloy head (5), on the body of rod of the hard alloy head (5) circumferentially
With it integrally formed with alloy head threaded body (6).
2. a kind of internal screw thread cold charge wear resistant cutting pick according to claim 1, it is characterised in that: the bar of the connecting rod (2)
On body and far from circumferentially laterally being opened up fluted (3) at the position on the left of matrix (1), on the body of rod of the connecting rod (2) and
A circlip (4) are socketed at the position in groove (3).
3. a kind of internal screw thread cold charge wear resistant cutting pick according to claim 2, it is characterised in that: the entirety of the circlip (4)
It is integrally formed using " manganese steel ", the both ends of the circlip (4) are a kind of mutual corresponding ladder meander-shaped.
4. a kind of internal screw thread cold charge wear resistant cutting pick according to claim 1, it is characterised in that: described matrix (1) have passed through
Wear-resisting cladding processing, the left side of the matrix (1) are a kind of elliptical shape to top and bottom protrusion, the right side of the matrix (1)
It is gradually reduced and carries out transition at a kind of arc-shaped.
5. a kind of internal screw thread cold charge wear resistant cutting pick according to claim 1, it is characterised in that: the hard alloy head (5)
Face view be a kind of " bullet " head shapes, the hard alloy head (5) is threaded in by the alloy head threaded body (6)
In the matrix screw thread through-hole (7) of matrix (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822017422.6U CN209385128U (en) | 2018-12-04 | 2018-12-04 | A kind of internal screw thread cold charge wear resistant cutting pick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822017422.6U CN209385128U (en) | 2018-12-04 | 2018-12-04 | A kind of internal screw thread cold charge wear resistant cutting pick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209385128U true CN209385128U (en) | 2019-09-13 |
Family
ID=67870356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822017422.6U Expired - Fee Related CN209385128U (en) | 2018-12-04 | 2018-12-04 | A kind of internal screw thread cold charge wear resistant cutting pick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209385128U (en) |
-
2018
- 2018-12-04 CN CN201822017422.6U patent/CN209385128U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190913 Termination date: 20201204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |