CN203035530U - Structural-improved vehicle power-assisted steering oil cylinder - Google Patents
Structural-improved vehicle power-assisted steering oil cylinder Download PDFInfo
- Publication number
- CN203035530U CN203035530U CN 201220732854 CN201220732854U CN203035530U CN 203035530 U CN203035530 U CN 203035530U CN 201220732854 CN201220732854 CN 201220732854 CN 201220732854 U CN201220732854 U CN 201220732854U CN 203035530 U CN203035530 U CN 203035530U
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- CN
- China
- Prior art keywords
- piston rod
- piston
- ring
- protecgulum
- cylinder barrel
- 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.)
- Expired - Fee Related
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- Power Steering Mechanism (AREA)
- Sealing Devices (AREA)
Abstract
The utility model provides a structural-improved vehicle power-assisted steering oil cylinder. The technical scheme includes that position of a piston is axially limited by steps of a piston rod, and the piston is positioned on the piston rod through a stop ring and a clamp spring for a shaft; the sealing structure between the piston and a cylinder barrel is that one guide ring loaded with polytetrafluoroethylene materials and a wearing ring are sequentially arranged at the piston to form combined sealing; the sealing structure of a front cover and the piston rod is that a sealing ring and one guide ring loaded with polytetrafluoroethylene materials are sequentially arranged in an inner hole of the front cover to form combined sealing; and a stroke limiting stopping ring is connected with the piston rod through a bead ring. The sealing structure of the vehicle power-assisted steering oil cylinder is improved, so that leakage is avoided and service life is prolonged; the stroke limiting stopping ring is connected with the piston rod through the bead ring, so that the stroke can be changed by adjusting position of the stroke limiting stopping ring; and the connecting structure of the piston on the piston is improved, so that the oil cylinder is convenient to process and mount.
Description
Technical field
The utility model relates to the steering cylinder of the power steering system that is applied to all kinds of commercial car.
Background technique
The sealing system of the steering cylinder of present all kinds of heavy-duty commercial vehicles all adopts common rubber seal, and wear-resisting special processing is not adopted at the relative movement position.So product is short working life, in certain time limit leakage phenomenon takes place, thereby has influenced the working life of car load.
Summary of the invention
For fear of leakage phenomenon, improve working life, the utility model proposes the motor turning power-assisted oil cylinder that improves structure.
Be the technical solution problem, the utility model is by the following technical solutions: the motor turning power-assisted oil cylinder that improves structure, the bonnet, protecgulum and the piston rod that comprise cylinder barrel, piston, threaded connecting head, the bonnet of threaded connecting head is welded on an end of cylinder barrel, and first ball stud is fixedlyed connected with bonnet; Be welded with two oily joints of turnover on the wall of cylinder barrel; Protecgulum is threaded in the other end of cylinder barrel, is provided with seal ring between the junction plane of protecgulum and cylinder barrel, is connected with the stroke limit back-up ring on the piston rod; Piston rod stretches out from the pilot hole of protecgulum, fixedly connected with second ball stud in the outer end of piston rod, it is characterized in that: the inner of piston rod is provided with the connection axle journal, piston sleeve is contained on the connection axle journal of piston rod, piston is by the step axial limiting on the piston rod, piston is located at piston rod with jump ring by back-up ring, axle, is provided with seal ring between the junction plane of piston and piston rod; Sealing configuration between piston and the cylinder barrel is: guide ring, the wear ring of polytetrafluoroethylmaterial material are housed on the piston successively, constitute combination seal; The sealing configuration of protecgulum and piston rod is: the guide ring of seal ring, polytetrafluoroethylmaterial material is housed in the endoporus of protecgulum successively, constitutes combination seal; Described stroke limit back-up ring is connected on the piston rod by steel traveler.
Further restriction to technique scheme: the connecting part, outer end of piston rod and protecgulum is provided with dust ring.
Beneficial effect: the utility model is avoided leakage phenomenon by improving the sealing configuration of motor turning power-assisted oil cylinder, thereby improves working life; In addition, described stroke limit back-up ring is connected on the piston rod by steel traveler, as long as adjust the position of stroke limit back-up ring, just can realize the stroke adjustment; The linkage structure of piston on piston improved, and has to be convenient to the advantage of processing and being convenient to install.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, it is as follows to further describe the utility model: the motor turning power-assisted oil cylinder that improves structure, the bonnet 1, protecgulum 6 and the piston rod 5 that comprise cylinder barrel 4, piston 2, threaded connecting head, the bonnet 1 of threaded connecting head is welded on an end of cylinder barrel 4, and first ball stud 17 is fixedlyed connected with bonnet 1 by the threaded connector 1a of bonnet; Be welded with two oily joints 3 of turnover on the wall of cylinder barrel; Protecgulum 6 is threaded in the other end of cylinder barrel, is provided with seal ring between the junction plane of protecgulum 6 and cylinder barrel 4, and 5 are connected with stroke limit back-up ring 11 on the piston rod; Piston rod 5 stretches out from the pilot hole of protecgulum, fixedly connected with second ball stud 7 in the outer end of piston rod, the inner of piston rod 5 is provided with the connection axle journal, piston 2 is sleeved on the connection axle journal of piston rod, piston 2 is by the step axial limiting on the piston rod 5, piston is located at piston rod with jump ring 16 by back-up ring 15, axle, is provided with seal ring between the junction plane of piston 2 and piston rod; Sealing configuration between piston and the cylinder barrel is: guide ring 14, the wear ring 13 of polytetrafluoroethylmaterial material are housed on the piston successively, constitute combination seal; The sealing configuration of protecgulum and piston rod is: the guide ring 9 of seal ring 10, polytetrafluoroethylmaterial material is housed in the endoporus of protecgulum successively, constitutes combination seal; Described stroke limit back-up ring 11 is connected on the piston rod by steel traveler 12.
For dustproof, the connecting part, outer end of piston rod and protecgulum is provided with dust ring 8.
Stroke limit back-up ring 11 is connected structure on the piston rod by steel traveler 12, is convenient to realize the stroke adjustment, thereby adapt to different vehicles by adjusting the position of stroke limit back-up ring 11 on piston rod 5.
The structure of described first ball stud 17 and second ball stud 7 is symmetrical, the interlace angle of 90o of the connecting direction of the connecting direction of first ball stud 17 and second ball stud 7.
Claims (2)
1. improve the motor turning power-assisted oil cylinder of structure, comprise bonnet, protecgulum and the piston rod of cylinder barrel, piston, threaded connecting head, the bonnet of threaded connecting head is welded on an end of cylinder barrel, and first ball stud is fixedlyed connected with bonnet; Be welded with two oily joints of turnover on the wall of cylinder barrel; Protecgulum is threaded in the other end of cylinder barrel, is provided with seal ring between the junction plane of protecgulum and cylinder barrel, is connected with the stroke limit back-up ring on the piston rod; Piston rod stretches out from the pilot hole of protecgulum, fixedly connected with second ball stud in the outer end of piston rod, it is characterized in that: the inner of piston rod is provided with the connection axle journal, piston sleeve is contained on the connection axle journal of piston rod, piston is by the step axial limiting on the piston rod, piston is located at piston rod with jump ring by back-up ring, axle, is provided with seal ring between the junction plane of piston and piston rod; Sealing configuration between piston and the cylinder barrel is: guide ring, the wear ring of polytetrafluoroethylmaterial material are housed on the piston successively, constitute combination seal; The sealing configuration of protecgulum and piston rod is: the guide ring of seal ring, polytetrafluoroethylmaterial material is housed in the endoporus of protecgulum successively, constitutes combination seal; Described stroke limit back-up ring is connected on the piston rod by steel traveler.
2. the motor turning power-assisted oil cylinder of improvement structure according to claim 1, it is characterized in that: the connecting part, outer end of piston rod and protecgulum is provided with dust ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220732854 CN203035530U (en) | 2012-12-27 | 2012-12-27 | Structural-improved vehicle power-assisted steering oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220732854 CN203035530U (en) | 2012-12-27 | 2012-12-27 | Structural-improved vehicle power-assisted steering oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203035530U true CN203035530U (en) | 2013-07-03 |
Family
ID=48687660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220732854 Expired - Fee Related CN203035530U (en) | 2012-12-27 | 2012-12-27 | Structural-improved vehicle power-assisted steering oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203035530U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214167A (en) * | 2014-08-20 | 2014-12-17 | 安庆市天润工程机械有限责任公司 | Large hydraulic steering oil tank |
-
2012
- 2012-12-27 CN CN 201220732854 patent/CN203035530U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214167A (en) * | 2014-08-20 | 2014-12-17 | 安庆市天润工程机械有限责任公司 | Large hydraulic steering oil tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20131227 |