CN201357860Y - Rotary valve centering device used for improving high-speed running stability of automobile - Google Patents
Rotary valve centering device used for improving high-speed running stability of automobile Download PDFInfo
- Publication number
- CN201357860Y CN201357860Y CNU2009200842540U CN200920084254U CN201357860Y CN 201357860 Y CN201357860 Y CN 201357860Y CN U2009200842540 U CNU2009200842540 U CN U2009200842540U CN 200920084254 U CN200920084254 U CN 200920084254U CN 201357860 Y CN201357860 Y CN 201357860Y
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- China
- Prior art keywords
- steering
- rotary valve
- automobile
- valve seat
- centering device
- 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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Abstract
The utility model relates to a rotary valve centering device used for improving the high-speed running stability of an automobile, belonging to the field of the power steering gear of automobile parts. The rotary valve centering device consists of a sliding sleeve, a sliding post, a rolling post, a centering valve seat and a pre-tightening spring, wherein the sliding sleeve is fixedly pressed and arranged in a through hole opened on an input shaft; the pre-tightening spring and the sliding post are arranged in the sliding sleeve from inside to outside; the outer side of the sliding sleeve is provided with the centering valve seat fixed on a steering screw stem; the rolling post is arranged between the sliding post and the centering valve seat; and the rolling post is pressed towards the center position of the groove of the centering valve seat by the pre-tightening spring all the time. Therefore, when the automobile runs straightly, the running stability of the automobile can be effectively ensured; when in need of steering, a steering wheel needs to overcome the resisting moment generated by the pre-tightening spring, thereby eliminating the steering wheel 'floats' when the automobile runs at a high speed and improving the returnability performance when in steering. In addition, the rotary valve centering device solves the problem that a rotary valve is difficult to eliminate the conflict between the steering handiness and the steering stability.
Description
Technical field:
The utility model relates to a kind of rotary valve centering device that improves galloping stability, belongs to the power steering field of auto parts and components.
Background technology:
Automobile during low speed driving, is wished that the hand-power that turns to is little, and when running at high speed, is wished to have certain feel again in the process of moving, eliminates " unstable " of bearing circle.But existing common rotary valve is difficult to eliminate the contradiction between ease of steering and the stability, existing centering device, mostly be to be fixed on valve seat in fixed on the valve pocket or on the input shaft, by preloading spring roller or steel ball are pressed to input shaft, produce resisting moment, though these structures are effective, to some rotary valve structure and inapplicable.
Summary of the invention:
The purpose of this utility model is: provide a kind of automobile that makes running at high speed when turning to, utilize the predetermincd tension of centering device to increase feel and improve stability; And the predetermincd tension of this centering device is assemblied in the rotary valve centering device of the raising galloping stability on the rotary valve to turning to not influence of hand-power when low speed driving turns to.
The utility model is to realize above-mentioned purpose by following technical solution:
This rotary valve centering device that improves galloping stability is made up of sliding sleeve, traveller, roller, fixed middle valve seat and preloading spring, it is characterized in that: sliding sleeve is fitted in the through hole that has on the input shaft, preloading spring and traveller are housed in the sliding sleeve from the inside to the outside, there is a fixed middle valve seat that is fixed on the steering screw in the outside of sliding sleeve, between traveller and the fixed middle valve seat roller is housed.
The utility model beneficial effect compared with prior art is:
The roller of this rotary valve centering device when the automobile straight-line travelling, then can effectively guarantee the stability of running car owing to pressed to the center of middle valve seat groove surely by preloading spring by traveller all the time; When automobile need turn to, because steering wheel rotation must overcome the resisting moment that preloading spring produces, thus the sensation of bearing circle " unstable " when having eliminated galloping.When turn to finish after, valve seat raceway effect during the roller on the rotary valve centering device is subjected to surely, can make bearing circle faster, recenter the return performance when also having improved motor turning more accurately.
Description of drawings:
Fig. 1 is the main TV structure scheme drawing of the rotary valve centering device of raising galloping stability;
Fig. 2 is the plan structure scheme drawing of the rotary valve centering device of raising galloping stability.
Among the figure: 1, sliding sleeve, 2, traveller, 3, roller, 4, fixed in valve seat, 5, preloading spring, 6, fix screw, 7, input shaft, 8, torsion bar.
The specific embodiment:
This rotary valve centering device that improves galloping stability is made up of sliding sleeve 1, traveller 2, roller 3, fixed middle valve seat 4 and preloading spring 5, and fixed middle valve seat 4 is fixed on the steering screw (not drawing among the figure) by fix screw 6.Have through hole on the input shaft 7, two sliding sleeves 1 are assemblied in this through hole by the interference of through hole two ends, preloading spring 5 and traveller 2 are housed respectively in two sliding sleeves 1 from the inside to the outside, between valve seat 4 and the traveller 2, roller 3 was crushed on the center (referring to accompanying drawing 1-2) of middle valve seat 4 upper grooves surely by preloading spring 5 all the time by traveller 2 during roller 3 was contained in surely.
During installation, this rotary valve centering device is after steering screw assembly debugging assembling finishes, and sliding sleeve 1 is pressed in the through hole of input shaft 7, traveller 2 and preloading spring 5 is contained in the sliding sleeve 1 again.Then roller 3 is contained between middle surely valve seat 4 and the traveller 2.During the work of this rotary valve centering device, when the automobile straight line is run at high speed, the rotary valve centering device utilize the predetermincd tension of preloading spring 5 make roller 3 be stuck in traveller 2 with fixed in the groove between the valve seat 4, have stable well.After only the starting torque when bearing circle rotates surpasses the resisting moment that preloading spring produced, just can occur between input shaft and the steering screw relatively rotating, so just eliminated automobile in " unstable " phenomenon of running at high speed when turning to, solved common rotary valve and be difficult to eliminate contradiction between ease of steering and the stability.
Claims (1)
1, a kind of rotary valve centering device that improves galloping stability, it is made up of sliding sleeve (1), traveller (2), roller (3), fixed middle valve seat (4) and preloading spring (5), it is characterized in that: sliding sleeve (1) is fitted in the through hole that has on the input shaft (7), preloading spring (5) and traveller (2) are housed in the sliding sleeve (1) from the inside to the outside, there is a fixed middle valve seat (4) that is fixed on the steering screw in the outside of sliding sleeve (1), between traveller (2) and the fixed middle valve seat (4) roller (3) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200842540U CN201357860Y (en) | 2009-03-16 | 2009-03-16 | Rotary valve centering device used for improving high-speed running stability of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200842540U CN201357860Y (en) | 2009-03-16 | 2009-03-16 | Rotary valve centering device used for improving high-speed running stability of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201357860Y true CN201357860Y (en) | 2009-12-09 |
Family
ID=41423622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200842540U Expired - Fee Related CN201357860Y (en) | 2009-03-16 | 2009-03-16 | Rotary valve centering device used for improving high-speed running stability of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201357860Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103112488A (en) * | 2013-02-06 | 2013-05-22 | 浙江诺力机械股份有限公司 | Differential type power-assisted steering handle device for industrial vehicle |
| CN113247081A (en) * | 2021-07-14 | 2021-08-13 | 深圳天诚巨能科技有限公司 | Rotary valve aligning system for improving operation stability of automobile power steering gear |
-
2009
- 2009-03-16 CN CNU2009200842540U patent/CN201357860Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103112488A (en) * | 2013-02-06 | 2013-05-22 | 浙江诺力机械股份有限公司 | Differential type power-assisted steering handle device for industrial vehicle |
| CN103112488B (en) * | 2013-02-06 | 2015-04-15 | 浙江诺力机械股份有限公司 | Differential type power-assisted steering handle device for industrial vehicle |
| CN113247081A (en) * | 2021-07-14 | 2021-08-13 | 深圳天诚巨能科技有限公司 | Rotary valve aligning system for improving operation stability of automobile 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: 20091209 Termination date: 20130316 |