CN201454594U - Flat pin for hydraulic breaking hammer - Google Patents
Flat pin for hydraulic breaking hammer Download PDFInfo
- Publication number
- CN201454594U CN201454594U CN2009201172866U CN200920117286U CN201454594U CN 201454594 U CN201454594 U CN 201454594U CN 2009201172866 U CN2009201172866 U CN 2009201172866U CN 200920117286 U CN200920117286 U CN 200920117286U CN 201454594 U CN201454594 U CN 201454594U
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- overcoat
- plug
- breaking hammer
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Abstract
The utility model discloses a flat pin for a hydraulic breaking hammer, consisting of a core rod and a jacket, wherein the core rod is made of high-carbon alloy steel; the jacket is made of a high molecular material; and the core rod and the jacket have the same length and are fixedly connected into a whole through an interference fit. The utility model has the advantages of good abrasion resistance, toughness, stress cracking resistance and shock absorbing performance and great improvement of sound proof functions and can greatly improve the abrasion resistance of flat pins and prolong the service life of the flat pins in multiples, thus the use cost can be greatly reduced.
Description
Technical field
The utility model relates to a kind of cotter pilotage, especially relates to a kind of hydraulic breaking hammer cotter pilotage, belongs to the mining machinery field.
Background technology
Hydraulic breaking hammer is in recent years in the mine, railway, and highway, the breaking ores that industries such as urban construction are used is repaired the roads, and cuts into a mountain bridge demolition, the indispensable machinery of removing etc.According to statistics, national quartering hammer was sold about 8200 by June in 2007, at existing nearly 20,000 quartering hammers of China, and recent years demand in continuous increase.
Cotter pilotage is the important component part on the hydraulic breaking hammer, also is consumable accessory, and the cotter pilotage consumption is big, the expense height is the problem of users' headache.The use amount of annual China cotter pilotage is about 200,000.Because cotter pilotage is to use environment more abominable, so, be very high to the intensity of cotter pilotage and the requirement of toughness.At present, the cotter pilotage that adopts all adopts commaterial to make both at home and abroad, and its major defect is: (1) wears no resistance, serious wear.(2) toughness and anti-stress cracking are poor, are often fractureed the use cost height.(3) do not have impact mitigation measure, noise is big.These shortcomings have had a strong impact on the use of hydraulic breaking hammer, have caused very big waste.
The utility model content
The utility model mainly be solve that existing in prior technology wears no resistance, serious wear, noise height, technical problem that use cost is high, provide a kind of wearing and tearing little, use cost is low, the hydraulic breaking hammer cotter pilotage that noise is little.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: cotter pilotage is made up of plug and overcoat two parts, plug and overcoat equal in length, fixedly connected being integral between plug and the overcoat.
As preferably, be integral by interference fit is fixedly connected between plug and the overcoat.
As preferably, plug adopts high-carbon steel, and overcoat adopts macromolecular material.
As preferably, the section configuration of plug is that both sides are semicircle, and both sides are used with the tangent straight line of two semicircles and are connected in addition, form long flat shape; The section of overcoat is semicircle for both sides, the outside, and both sides are used with the tangent straight line of two semicircles and are connected in addition, form long flat shape, and the inboard of the section of described overcoat (2) is the long flat shape that the section with described plug (1) is complementary.
As preferably, described plug (1) section configuration is circular, and the section of described overcoat (2) is semicircle for both sides, the outside, and both sides are used with the tangent straight line of two semicircles and are connected in addition, form long flat shape, the inboard of the section of described overcoat (2) is the circle that the section with described plug (1) is complementary.
The utlity model has characteristic of reasonable structure, because cotter pilotage has been adopted inside and outside two-part structure, externally used macromolecular material, make the utility model solve the problem that prior art exists well, have following technique effect: (1) wearability, toughness and anti-stress cracking are good.(2) impact of suction function is arranged.(3) the noise control sound function is arranged.Improve the wearability of cotter pilotage effectively, reduced use cost, increase the service life of cotter pilotage.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is that A among Fig. 1 is to view;
Fig. 3 is an another kind of structural representation of the present utility model;
Fig. 4 is that B among Fig. 3 is to view.
The specific embodiment
Embodiment 1: as shown in Figure 1 and Figure 2, the utility model is made up of plug 1 and overcoat 2 two parts, and plug 1 adopts high-carbon alloy steel, and overcoat 2 adopts macromolecular material.Plug 1 and overcoat 2 equal in length, plug 1 and overcoat 2 are fixedlyed connected by interference fit and are integral, plug 1 section is that both sides are semicircle, both sides are used with the tangent straight line of two semicircles and are connected in addition, form long flat shape, overcoat 2 sections are semicircle for both sides, the outside, and both sides are used with the tangent straight line of two semicircles and are connected in addition, form long flat shape, the inboard of the section of overcoat 2 is long flat shapes that the section with plug 1 is complementary.
Owing to adopted inside and outside two-part cotter pilotage structure, externally used macromolecular material, make the utility model solve the problem that prior art exists well, have following technique effect: (1) wearability, toughness and anti-stress cracking are good.(2) impact of suction function is arranged.(3) the noise control sound function is arranged.Improve the wearability of cotter pilotage effectively, reduced use cost, increase the service life of cotter pilotage.
Embodiment 2: as shown in Figure 3, Figure 4, the utility model is made up of plug 1 and overcoat 2 two parts, plug 1 adopts high-carbon alloy steel, and overcoat 2 adopts macromolecular material, plug 1 and overcoat 2 equal in length, plug 1 is fixedlyed connected into a single integrated structure with overcoat 2 by interference fit, plug 1 section is circular, and overcoat 2 sections are semicircle for both sides, the outside, and both sides are used with the tangent straight line of two semicircles and are connected in addition, form long flat shape, the inboard of the section of overcoat 2 is circles that the section with plug 1 is complementary.
Owing to adopted inside and outside two-part cotter pilotage structure, externally used macromolecular material, so that the utility model has solved the problem that prior art exists well, have following technique effect: (1) wearability, toughness and anti-stress cracking are good. (2) impact of suction function is arranged. (3) the noise-proofing function is arranged. Effectively improve the wearability of cotter pilotage, reduced use cost, increase the service life of cotter pilotage.
Claims (7)
1. hydraulic breaking hammer cotter pilotage, it is characterized in that: described cotter pilotage is made up of plug (1) and overcoat (2) two parts, described plug (1) and described overcoat (2) equal in length, fixedly connected being integral between described plug (1) and the described overcoat (2).
2. a kind of hydraulic breaking hammer cotter pilotage according to claim 1 is characterized in that: be integral by interference fit is fixedly connected between described plug (1) and the described overcoat (2).
3. a kind of hydraulic breaking hammer cotter pilotage according to claim 1 and 2 is characterized in that: described plug (1) adopts high-carbon steel, and described overcoat (2) adopts macromolecular material.
4. a kind of hydraulic breaking hammer cotter pilotage according to claim 1 and 2, it is characterized in that: described plug (1) section configuration is that both sides are semicircle, both sides are used with the tangent straight line of two semicircles and are connected in addition, form long flat shape, the section of described overcoat (2) is semicircle for both sides, the outside, both sides are used with the tangent straight line of two semicircles and are connected in addition, form long flat shape, and the inboard of the section of described overcoat (2) is the long flat shape that the section with described plug (1) is complementary.
5. a kind of hydraulic breaking hammer cotter pilotage according to claim 1 and 2, it is characterized in that: described plug (1) section configuration is for circular, the section of described overcoat (2) is semicircle for both sides, the outside, both sides are used with the tangent straight line of two semicircles and are connected in addition, form long flat shape, the inboard of the section of described overcoat (2) is the circle that the section with described plug (1) is complementary.
6. a kind of hydraulic breaking hammer cotter pilotage according to claim 3, it is characterized in that: described plug (1) section configuration is that both sides are semicircle, both sides are used with the tangent straight line of two semicircles and are connected in addition, form long flat shape, the section of described overcoat (2) is semicircle for both sides, the outside, both sides are used with the tangent straight line of two semicircles and are connected in addition, form long flat shape, and the inboard of the section of described overcoat (2) is the long flat shape that the section with described plug (1) is complementary.
7. a kind of hydraulic breaking hammer cotter pilotage according to claim 3, it is characterized in that: described plug (1) section configuration is for circular, the section of described overcoat (2) is semicircle for both sides, the outside, both sides are used with the tangent straight line of two semicircles and are connected in addition, form long flat shape, the inboard of the section of described overcoat (2) is the circle that the section with described plug (1) is complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201172866U CN201454594U (en) | 2009-04-08 | 2009-04-08 | Flat pin for hydraulic breaking hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201172866U CN201454594U (en) | 2009-04-08 | 2009-04-08 | Flat pin for hydraulic breaking hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201454594U true CN201454594U (en) | 2010-05-12 |
Family
ID=42381941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201172866U Expired - Fee Related CN201454594U (en) | 2009-04-08 | 2009-04-08 | Flat pin for hydraulic breaking hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201454594U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629210A (en) * | 2013-11-25 | 2014-03-12 | 西安轨道交通装备有限责任公司 | Detachable hinge pin connecting structure for pipe connecting |
-
2009
- 2009-04-08 CN CN2009201172866U patent/CN201454594U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629210A (en) * | 2013-11-25 | 2014-03-12 | 西安轨道交通装备有限责任公司 | Detachable hinge pin connecting structure for pipe connecting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20160408 |