CN203528592U - Automobile hydraulic circulating ball-type power steering gear - Google Patents
Automobile hydraulic circulating ball-type power steering gear Download PDFInfo
- Publication number
- CN203528592U CN203528592U CN201320651218.4U CN201320651218U CN203528592U CN 203528592 U CN203528592 U CN 203528592U CN 201320651218 U CN201320651218 U CN 201320651218U CN 203528592 U CN203528592 U CN 203528592U
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- China
- Prior art keywords
- piston
- assembly
- rack
- rocker shaft
- rod
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- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 238000005516 engineering process Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- Transmission Devices (AREA)
Abstract
The utility model relates to an automobile hydraulic circulating ball-type power steering gear which comprises a shell. A control valve assembly, a rack piston assembly and a rockshaft assembly are arranged in the shell, wherein the rack piston assembly comprises a screw rod, multiple steel balls and a nut with a rack. The top end of the rack piston assembly is fixedly connected with an oil plug, wherein the steel balls are placed in a closed circulating pipeline between a piston and the screw rod. The rockshaft assembly comprises a rockshaft and a sector gear integrated with the rockshaft, and the sector gear of the rockshaft is meshed with the rack on the piston. The power steering gear is characterized in that compared with the structure that an end cap of the shell at the other end of the control valve assembly is provided with an adjustable rack piston stroke limiting device, the device comprises the nut installed on the end cap through a sealing part and the adjustable screw rod matched with the nut. The power steering gear can limit largest axial moving strokes of the rack piston differently, and accordingly a steering swing angle can be adjusted, the structure is simple and adjustment is facilitated.
Description
Technical field
The utility model relates to automobile hydraulic power-driven steering gear field, especially a kind of hydraulic circulation.
Background technology
In prior art, hydraulic circulation comprises housing, in this housing, be provided with control cock assembly, rack piston assembly, rocker shaft assembly, rack piston assembly comprises screw rod, a plurality of steel ball, with the piston of tooth bar, it is stifled that rack piston assembly top is fixedly connected with oil, wherein, above-mentioned steel ball is placed in the sealing and circulating pipeline between piston and screw rod; rocker shaft assembly comprise rocker shaft and with rocker shaft all-in-one-piece processed fan tooth, the tooth bar of fanning on tooth and piston by rocker shaft meshes.When control cock assembly drive screw turns, screw rod promotes piston movement, thereby piston turns to meshing to drive pitman arm back and forth to shake to realize by gear, in this process, and the rolling that steel ball moves in circles in the pipeline of sealing and circulating.
In actual use, there is the user demand to turning to pivot angle to adjust, in prior art, cannot meet the demand, need to be improved.
Summary of the invention
The utility model aim to provide a kind of can be to the hydraulic circulation that turns to pivot angle to adjust.
Technical solution of the present utility model is as follows:
Hydraulic circulation comprises housing, in this housing, be provided with control cock assembly, rack piston assembly, rocker shaft assembly, rack piston assembly comprises screw rod, a plurality of steel balls, piston with tooth bar, it is stifled that rack piston assembly top is fixedly connected with oil, wherein, above-mentioned steel ball is placed in the sealing and circulating pipeline between piston and screw rod, rocker shaft assembly comprises rocker shaft and fans tooth with rocker shaft all-in-one-piece processed, tooth bar engagement on rocker shaft fan tooth and piston, it is characterized in that: the housing end plug place with respect to the control cock assembly other end is provided with adjustable rack piston distance caging device.
As required, adjust above-mentioned distance caging device in good time, can carry out different restrictions to the maximum axial shift motion of rack piston, thereby can adapt to the demand of deflection angle under different situations, reduce the wearing and tearing frequency of tire.
Further technical scheme is:
Described adjustable rack piston distance caging device is comprised of the adjusting screw(rod) that is installed on the nut of end caps by sealing member and coordinate with this nut, and one end of adjusting screw(rod) is positioned at hull outside, and the other end of adjusting screw(rod) is positioned at housing inner side.
This technical scheme is simple in structure, convenient adjustment.
Further technical scheme is:
Described adjusting screw(rod) with the piston of tooth bar on same axis.
Accompanying drawing explanation
Below with reference to drawings and Examples, the utility model is described in further details.
Accompanying drawing 1 is the structural representation of the utility model embodiment.
In accompanying drawing, each sequence number is respectively: 1, adjusting screw(rod); 2, sealing nut; 3, sealing member; 4, oil is stifled; 5, housing; 6, control cock assembly; 7, rocker shaft assembly; 8, rack piston assembly.
The specific embodiment
Referring to accompanying drawing 1, hydraulic circulation shown in the utility model embodiment comprises housing 5, in this housing, be provided with control cock assembly 6, rack piston assembly 8, rocker shaft assembly 7, wherein, rack piston assembly comprises screw rod, a plurality of steel balls, piston with tooth bar, rack piston assembly top is fixedly connected with oil stifled 4, above-mentioned steel ball is placed in the sealing and circulating pipeline between piston and screw rod, rocker shaft assembly 7 comprises rocker shaft and fans tooth with rocker shaft all-in-one-piece processed, tooth bar engagement on rocker shaft fan tooth and piston, it is characterized in that: the housing end plug place with respect to the control cock assembly other end is provided with adjustable rack piston distance caging device, the trip inhibiting device is comprised of the adjusting screw(rod) 1 that is installed on the sealing nut 2 of end caps by sealing member 3 and coordinate with sealing nut 2.One end of this adjusting screw(rod) 1 is positioned at hull outside, and the other end is positioned at housing inner side and is positioned at a side of oil stifled 4.Adjusting screw(rod) 1 outer end is outer-hexagonal shape, and sealing nut 2 is outer-hexagonal, facilitates instrument adjustment.
Above-mentioned drawings and Examples only, for the utility model is described, do not constitute any limitation protection domain of the present utility model.
The utility model that above-mentioned structure like this forms all has many saving graces for technical personnel of the same trade now, and the progressive that really possesses skills.
Claims (3)
1. hydraulic circulation, comprise housing, in this housing, be provided with control cock assembly, rack piston assembly, rocker shaft assembly, rack piston assembly comprises screw rod, a plurality of steel balls, piston with tooth bar, it is stifled that rack piston assembly top is fixedly connected with oil, wherein, above-mentioned steel ball is placed in the sealing and circulating pipeline between piston and screw rod, rocker shaft assembly comprises rocker shaft and fans tooth with rocker shaft all-in-one-piece processed, tooth bar engagement on rocker shaft fan tooth and piston, it is characterized in that: the housing end plug place with respect to the control cock assembly other end is provided with adjustable rack piston distance caging device.
2. hydraulic circulation according to claim 1, it is characterized in that: described adjustable rack piston distance caging device is comprised of the adjusting screw(rod) that is installed on the nut of end caps by sealing member and coordinate with this nut, one end of adjusting screw(rod) is positioned at hull outside, and the other end of adjusting screw(rod) is positioned at housing inner side.
3. hydraulic circulation according to claim 2, is characterized in that: described adjusting screw(rod) with the piston with tooth bar on same axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320651218.4U CN203528592U (en) | 2013-10-22 | 2013-10-22 | Automobile hydraulic circulating ball-type power steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320651218.4U CN203528592U (en) | 2013-10-22 | 2013-10-22 | Automobile hydraulic circulating ball-type power steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203528592U true CN203528592U (en) | 2014-04-09 |
Family
ID=50414837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320651218.4U Expired - Lifetime CN203528592U (en) | 2013-10-22 | 2013-10-22 | Automobile hydraulic circulating ball-type power steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203528592U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453536A (en) * | 2017-08-24 | 2017-12-08 | 北京动力机械研究所 | High efficiency motor mechanism transmission mechanism |
| CN110439984A (en) * | 2019-08-23 | 2019-11-12 | 江苏神通阀门股份有限公司 | A kind of limit of hydraulically operated equipment and fine tuning structure |
| CN113184045A (en) * | 2021-06-08 | 2021-07-30 | 衢州职业技术学院 | Electric power steering system and clearance adjusting method thereof |
| CN113184041A (en) * | 2021-06-08 | 2021-07-30 | 衢州职业技术学院 | Electric power steering system with clearance compensation mechanism |
-
2013
- 2013-10-22 CN CN201320651218.4U patent/CN203528592U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453536A (en) * | 2017-08-24 | 2017-12-08 | 北京动力机械研究所 | High efficiency motor mechanism transmission mechanism |
| CN110439984A (en) * | 2019-08-23 | 2019-11-12 | 江苏神通阀门股份有限公司 | A kind of limit of hydraulically operated equipment and fine tuning structure |
| CN113184045A (en) * | 2021-06-08 | 2021-07-30 | 衢州职业技术学院 | Electric power steering system and clearance adjusting method thereof |
| CN113184041A (en) * | 2021-06-08 | 2021-07-30 | 衢州职业技术学院 | Electric power steering system with clearance compensation mechanism |
| CN113184045B (en) * | 2021-06-08 | 2022-10-21 | 衢州职业技术学院 | Electric power steering system and clearance adjusting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |