CN201914311U - Automatic unloading structure used for steering power cylinder - Google Patents
Automatic unloading structure used for steering power cylinder Download PDFInfo
- Publication number
- CN201914311U CN201914311U CN2010206863863U CN201020686386U CN201914311U CN 201914311 U CN201914311 U CN 201914311U CN 2010206863863 U CN2010206863863 U CN 2010206863863U CN 201020686386 U CN201020686386 U CN 201020686386U CN 201914311 U CN201914311 U CN 201914311U
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- China
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- steel ball
- cylinder
- guide rod
- piston
- push rod
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- Expired - Fee Related
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Abstract
The utility model relates to an automatic unloading structure used for a steering power cylinder, which belongs to the field of an automobile power steering gear, and comprises a piston, a cylinder base, a cylinder cover, a top rod A, a top rod B, a support tube and the like, wherein both ends of the piston are respectively provided with the cylinder base and the cylinder cover, a guide rod A and a guide rod B are respectively arranged in the cylinder base and the cylinder cover, the guide rod A and the guide rod B are respectively provided with the top rod A and the top rod B, a pressure relief hole is arranged in the piston, the support tube is arranged in the pressure relief hole, both ends of the support tube are respectively provided with a steel ball A and a steel ball B through springs, and the steel ball A and the steel ball B are respectively movably connected with the top rod A and the top rod B through the pressure relief hole. In the unloading structure, two unloading valves arranged on the power steering gear are replaced by the power steering gear and the steering power cylinder for unloading respectively, so the two-path unloading requirement of a steering system can be met as long as one set of unloading valve is arranged in the power steering gear of the steering system, the structural design and the size of the steering gear are simplified, and the reliability of the power steering gear is improved.
Description
Technical field:
The utility model relates to a kind of automatic deloading structure that is used for power cylinder, belongs to the automobile power steering field.
Background technology:
Existing motor turning power cylinder all is not with unloader valve, the unloader valve decision that its off-load stroke is carried by power steering inside.When a steering swivel system need be equipped with the two-way Load Relief System, if still provide unloading function, will make the complicated design of power steering by deflector, also very inconvenient when on car load, arranging.
Summary of the invention:
The purpose of this utility model is: provide a kind of when steering swivel system need be equipped with the two-way unloader valve, bear respectively usually changing by power steering and power cylinder by two unloader valves of power steering configuration, promptly can simplify the structure design of power steering, can reduce the oad of power steering again, and the reliability of raising power steering, be convenient to the automatic deloading structure that is used for power cylinder that power steering is arranged on car load.
The utility model is to realize above-mentioned purpose by following technical solution:
A kind of automatic deloading structure that is used for power cylinder, it is by piston, the cylinder bottom seat, cylinder cap, guide rod A, guide rod B, push rod A, push rod B, support tube, steel ball A, steel ball B constitutes, it is characterized in that: the two ends of piston are respectively arranged with cylinder bottom seat and cylinder cap, by O-ring seals guide rod A and guide rod B are installed respectively in cylinder bottom seat and the cylinder cap, push rod A and push rod B are housed respectively on guide rod A and the guide rod B, internal piston is provided with relief hole, the port inboard of relief hole one end is provided with primary nut, support tube is housed in the relief hole, steel ball A and steel ball B are equipped with by spring respectively in the support tube two ends, described steel ball A and steel ball B by relief hole respectively with push rod A and push rod B active link.
The utility model beneficial effect compared with prior art is:
This off-load structure is made up of pressure release and push rod two parts, and wherein the pressure release part is made up of spring, steel ball, primary nut, support tube, and the push rod part is made up of push rod, guide rod and seal ring.Pressure release partly is installed on the piston, one cover push rod is installed respectively on cylinder cap and cylinder bottom seat, this off-load structure is will be usually to be changed by power steering and power cylinder by two unloader valves of power steering configuration to bear respectively, make the power steering in the steering swivel system need not design two cover unloader valves, as long as there is a cover unloader valve can satisfy the two-way off-load requirement of steering swivel system, the structure design of power steering and the oad of deflector have been simplified, improve the reliability of power steering, be convenient to the layout of power steering on car load simultaneously.
Description of drawings:
Accompanying drawing is the decomposing schematic representation that is used for the automatic deloading structure of power cylinder.
Among the figure: 1, cylinder bottom seat, 2, O-ring seals, 3, guide rod A, 4, push rod A, 5, primary nut, 6, steel ball A, 7, spring, 8, support tube, 9, piston, 10, cylinder cap, 11, guide rod B, 12, push rod B, 13, steel ball B, 14, relief hole.
The specific embodiment:
This automatic deloading structure that is used for power cylinder is made of piston 9, cylinder bottom seat 1, cylinder cap 10, guide rod A3, guide rod B11, push rod A4, push rod B12, support tube 8, steel ball A6, steel ball B19, the two ends of piston 9 are respectively arranged with cylinder bottom seat 1 and cylinder cap 10, by O-ring seals 2 guide rod A3 and guide rod B11 are installed respectively in cylinder bottom seat 1 and the cylinder cap 10, push rod A4 and push rod B12 are housed respectively on guide rod A3 and the guide rod B11.
Piston 9 inside are provided with relief hole 14, the port inboard of relief hole 14 1 ends is provided with primary nut 5, support tube 8 is housed in the relief hole 14, steel ball A6 and steel ball B13 are equipped with by spring 7 respectively in support tube 8 two ends, steel ball A6 and steel ball B13 by relief hole 14 respectively with push rod A4 and push rod B12 active link.
This is used for automatic deloading when assembling knot of power cylinder, and steel ball B13, spring 7 and support tube 8 and steel ball A6 are packed in the piston relief hole 14 successively, primary nut 5 is tightened again.Then push rod A4 and push rod B12 are pressed into respectively on guide rod A3 and the guide rod B11, compression distance is by designing requirement, after installing O-ring seals 2 on the guide rod, is assembled to respectively on power cylinder cylinder bottom seat 1 and the cylinder cap 10 again and gets final product.
This off-load structure is will be usually to be changed by power steering and power cylinder by two unloader valves of power steering configuration to bear respectively, make the power steering in the steering swivel system need not design two cover unloader valves, as long as there is a cover unloader valve can satisfy the two-way off-load requirement of steering swivel system, during work, piston 9 is moved to the left under the oil pressure effect, the right chamber of power cylinder this moment band is pressed, hydraulic oil is opened the steel ball B13 of piston 9 right-hand members, the steel ball A6 of left end seals hydraulic oil, the power cylinder normal operation, run to the stroke of appointment when piston 9 after, the push rod A4 on the left side backs down steel ball A6, chamber, the left and right sides fluid of power cylinder is communicated, thereby make power cylinder automatic deloading, vice versa.This off-load structure is applicable to the steering swivel system that needs the two-way unloader valve, after power cylinder carries unloader valve, can simplify the structure design of the deflector in the steering swivel system, be convenient to the layout of power steering on car load, also improve the reliability of steering swivel system simultaneously.
Claims (1)
1. automatic deloading structure that is used for power cylinder, it is by piston (9), cylinder bottom seat (1), cylinder cap (10), guide rod A (3), guide rod B (11), push rod A (4), push rod B (12), support tube (8), steel ball A (6), steel ball B (13) constitutes, it is characterized in that: the two ends of piston (9) are respectively arranged with cylinder bottom seat (1) and cylinder cap (10), by O-ring seals (2) guide rod A (3) and guide rod B (11) are installed respectively in cylinder bottom seat (1) and the cylinder cap (10), push rod A (4) and push rod B (12) are housed respectively on guide rod A (3) and the guide rod B (11), piston (9) inside is provided with relief hole (14), the port inboard of relief hole (14) one ends is provided with primary nut (5), support tube (8) is housed in the relief hole (14), steel ball A (6) and steel ball B (13) are equipped with by spring (7) respectively in support tube (8) two ends, described steel ball A (6) and steel ball B (13) by relief hole (14) respectively with push rod A (4) and push rod B (12) active link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206863863U CN201914311U (en) | 2010-12-25 | 2010-12-25 | Automatic unloading structure used for steering power cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206863863U CN201914311U (en) | 2010-12-25 | 2010-12-25 | Automatic unloading structure used for steering power cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201914311U true CN201914311U (en) | 2011-08-03 |
Family
ID=44414119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206863863U Expired - Fee Related CN201914311U (en) | 2010-12-25 | 2010-12-25 | Automatic unloading structure used for steering power cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201914311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110745181A (en) * | 2018-07-24 | 2020-02-04 | 博世汽车转向系统（济南）有限公司 | Hydraulic power steering gear |
-
2010
- 2010-12-25 CN CN2010206863863U patent/CN201914311U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110745181A (en) * | 2018-07-24 | 2020-02-04 | 博世汽车转向系统（济南）有限公司 | Hydraulic power steering gear |
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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: 20110803 Termination date: 20131225 |