CN215672968U - Middle cylinder part of hydraulic breaking hammer - Google Patents
Middle cylinder part of hydraulic breaking hammer Download PDFInfo
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- CN215672968U CN215672968U CN202121840237.2U CN202121840237U CN215672968U CN 215672968 U CN215672968 U CN 215672968U CN 202121840237 U CN202121840237 U CN 202121840237U CN 215672968 U CN215672968 U CN 215672968U
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Abstract
The utility model provides a middle cylinder component of a hydraulic breaking hammer, and belongs to the technical field of breaking hammers. It has been solved current well cylinder body and has napped, technical problem such as life of cylinder body in the influence. The utility model provides a well cylinder part of hydraulic breaking hammer, includes well cylinder body and piston, and the one end that well cylinder body is close to piston striking portion has set gradually dustproof seal groove, main oil seal groove and buffering oil seal groove, and dustproof seal groove installs the dust seal, and main oil seal groove installs main oil blanket, and buffering oil seal groove installs the buffering oil blanket, is provided with the guidance tape groove between main oil seal groove and the buffering oil seal groove, and the guidance tape is installed to the guidance tape groove. The utility model can effectively prevent the piston and the middle cylinder body from galling.
Description
Technical Field
The utility model belongs to the technical field of breaking hammers, and particularly relates to a middle cylinder component of a hydraulic breaking hammer.
Background
The breaking hammer is usually installed on an excavator, a loader or a power station for use, has the advantages of large impact force, convenient use, good maneuverability, high efficiency and the like, and is mainly used for the work of breaking, dismantling, excavating hard layers and the like in building construction.
At present, an existing hydraulic breaking hammer generally comprises a front cylinder body, a middle cylinder body and a rear cylinder body, a drill rod is arranged in the front cylinder body, the middle cylinder body is connected with the front cylinder body, a piston is arranged in the middle cylinder body, the piston does reciprocating motion in the middle cylinder body, and the piston may deviate from a circle center in the reciprocating motion process, so that the middle cylinder body is roughened, and the service life of the middle cylinder body is influenced.
For example, the utility model discloses a middle cylinder body, a piston ring, a sealing element and a reversing valve of a hydraulic breaking hammer middle cylinder part with the patent number of 201910446304.3, wherein the sealing element is matched with a sealed surface to support the piston, so that the serious loss caused by pulling damage of the piston and an inner hole due to contact of the piston and the inner hole of the middle cylinder body is avoided, however, the sealing element is generally made of soft material, the sealing element is easy to deform after repeated reciprocating motion, the piston cannot be supported, the contact of the piston and the inner hole of the middle cylinder body can be caused, the middle cylinder body is pulled to be rough, and the service life of the middle cylinder body is influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide a middle cylinder component of a hydraulic breaking hammer.
The purpose of the utility model can be realized by the following technical scheme: the utility model provides a well cylinder part of hydraulic breaking hammer, includes well cylinder body and piston, and the one end that well cylinder body is close to piston striking portion has set gradually dustproof seal groove, main oil seal groove and buffering oil seal groove, and dustproof seal groove installs the dust seal, and main oil seal groove installs main oil blanket, and buffering oil seal groove installs the buffering oil blanket, is provided with the guidance tape groove between main oil seal groove and the buffering oil seal groove, and the guidance tape is installed to the guidance tape groove.
The dust seal prevents dust outside the middle cylinder body from entering the inside of the middle cylinder body; the main oil seal prevents hydraulic oil in the middle cylinder body from leaking to the outer part of the middle cylinder body; the buffer oil seal has better shock resistance, absorbs hydraulic impact of hydraulic oil, reduces hydraulic pressure intensity and prevents the hydraulic oil from entering the next layer of oil seal in a certain amount. The guide belt plays a role in guiding the reciprocating motion of the piston, improves the centering performance of the piston, and can effectively prevent the piston and the middle cylinder body from galling.
Furthermore, the outer diameter surface of the guide belt is abutted against the guide belt groove, and the inner diameter surface of the guide belt is abutted against the piston.
There is a certain amount of clearance between piston and the well cylinder body inner wall, and the outer diametral plane through the guidance tape is contradicted with the guidance tape groove, and the inner diametral plane of guidance tape is contradicted with the piston, and the guidance tape keeps a certain amount of clearance with piston and well cylinder body inner wall, makes the piston can not deviate the centre of a circle when reciprocating motion, can not lead to well cylinder body napping, the life of cylinder body in the extension.
Further, the guide belt is made of plastic alloy materials. The guide belt has the excellent characteristics of low friction, corrosion resistance, thermal stability and the like, and particularly when the guide belt is compounded into a plastic alloy, higher bearing capacity, thermal mechanical stability, wear resistance and the like can be obtained. The guide belt is made of PTFE (fluorocarbon resin), copper powder, phenolic cloth and arborvitae.
Compared with the prior art, the utility model has the technical effects that: the structure of the guide belt plays a role in guiding the reciprocating motion of the piston, improves the centering performance of the piston, can effectively prevent the piston and the middle cylinder body from galling, and prolongs the service life of the middle cylinder body.
Drawings
Fig. 1 is a half sectional view of the present invention.
Fig. 2 is an enlarged view of a-a in fig. 1.
Fig. 3 is a half-sectional perspective view of the middle cylinder block of the present invention.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
According to fig. 1 to 3, a middle cylinder component of a hydraulic breaking hammer comprises a middle cylinder body 1 and a piston 2, wherein the front end part of the piston 2 is a striking part, a dustproof sealing groove 3, a main oil sealing groove 4 and a buffer oil sealing groove 5 are sequentially arranged at one end, close to the striking part of the piston 2, of the middle cylinder body 1 from outside to inside, the dustproof sealing groove 3 is provided with a dustproof seal 6, the main oil sealing groove 4 is provided with a main oil seal 7, the buffer oil sealing groove 5 is provided with a buffer oil seal 8, a guide groove 9 is arranged between the main oil sealing groove 4 and the buffer oil sealing groove 5, a guide belt 10 is arranged on the guide groove 9, the outer diameter surface of the guide belt 10 is abutted against the guide groove 9, the inner diameter surface of the guide belt 10 is abutted against the piston 2, the guide belt is made of a plastic alloy material, and the guide belt is made of PTFE (fluorocarbon resin) + copper powder, phenolic cloth and wood cypress.
The guide belt 10 plays a role in guiding the reciprocating motion of the piston 1, and the guide belt 10 separates the middle cylinder body 1 from the piston 2, so that a certain gap exists between the middle cylinder body 1 and the piston 2, the centering performance of the piston 2 is improved, the phenomenon that the piston 2 and the middle cylinder body 1 are napped can be effectively prevented, and the service life of the middle cylinder body 1 is prolonged.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes in the structure, shape and principle of the utility model are intended to be covered by the protection scope of the utility model as defined in the appended claims.
Claims (3)
1. The utility model provides a well cylinder part of hydraulic breaking hammer, includes well cylinder body (1) and piston (2), the one end that well cylinder body (1) is close to piston (2) striking portion has set gradually dustproof seal groove (3), main oil blanket groove (4) and buffering oil blanket groove (5), dustproof seal groove (6) are installed in dustproof seal groove (3), main oil blanket (7) are installed in main oil blanket groove (4), buffering oil blanket (8), its characterized in that are installed in buffering oil blanket groove (5): be provided with direction trough of belt (9) between main oil seal groove (4) and buffering oil seal groove (5), guidance tape (10) are installed in direction trough of belt (9).
2. A medium cylinder part of a hydraulic breaking hammer as set forth in claim 1, characterized in that: the outer diameter surface of the guide belt (10) is abutted against the guide belt groove (9), and the inner diameter surface of the guide belt (10) is abutted against the piston (2).
3. A medium cylinder part of a hydraulic breaking hammer as set forth in claim 1, characterized in that: the guide belt (10) is made of plastic alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121840237.2U CN215672968U (en) | 2021-08-06 | 2021-08-06 | Middle cylinder part of hydraulic breaking hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121840237.2U CN215672968U (en) | 2021-08-06 | 2021-08-06 | Middle cylinder part of hydraulic breaking hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215672968U true CN215672968U (en) | 2022-01-28 |
Family
ID=79984145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121840237.2U Active CN215672968U (en) | 2021-08-06 | 2021-08-06 | Middle cylinder part of hydraulic breaking hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215672968U (en) |
-
2021
- 2021-08-06 CN CN202121840237.2U patent/CN215672968U/en active Active
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