CN202345757U - Steering control valve of recirculating ball power steering gear - Google Patents
Steering control valve of recirculating ball power steering gear Download PDFInfo
- Publication number
- CN202345757U CN202345757U CN2011204845174U CN201120484517U CN202345757U CN 202345757 U CN202345757 U CN 202345757U CN 2011204845174 U CN2011204845174 U CN 2011204845174U CN 201120484517 U CN201120484517 U CN 201120484517U CN 202345757 U CN202345757 U CN 202345757U
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- CN
- China
- Prior art keywords
- input shaft
- steering
- control valve
- needle bearing
- torsion bar
- 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 steering control valve of a circulating ball power steering gear and belongs to the technical field of steering gears of automobiles. The steering control valve comprises a steering screw rod, a damping ring, an input shaft and a torque rod; the input shaft is mounted in an inner hole of the steering screw rod through a needle bearing A and a needle bearing B; the torque rod is arranged in a through hole at the center of the input shaft; and one end of the torque rod is connected with the steering screw rod through a cylindrical pin A, and the other end of the torque rod is connected with the input shaft through a cylindrical pin B. According to the utility model, a valve housing and the input shaft form an integral part, so that compared with the traditional control valve, the steering control valve has the advantages that not only is an individual part of the valve housing canceled, but also a rigid connecting component between the valve housing and the input shaft is canceled, and technological complexity is avoided, further the manufacturing cost is saved; and the problems that the technology of the conventional control valves are complicated, the manufacturing cost is high, and the risk of the strength of the connecting part between the valve housing and the input shaft is required to be taken, are solved,. The probability that the steering gear has abnormal noise can be reduced by supporting the input shaft with the needle bearing, so that the service life of the steering control valve is prolonged.
Description
Technical field
The utility model relates to a kind of ball-and-nut power steering device steering control valve, belongs to the automobile steering device technology field.
Background technology
Traditional ball-and-nut power steering device steering control valve mainly is made up of steering screw, valve pocket, input shaft and torsion bar; The valve pocket of this structure and input shaft need carry out rigid connection through straight pin or spline, could assemble the back with steering screw, torsion bar then and form the rotary valve oil circuit.The input shaft two ends of this structure lean on two needle bearings to support, and a side bearing is inner at steering screw, and other end bearing is outside at steering screw.The mode of this rigid connection requires position degree, the fit dimension of pin-and-hole or keyway all to have relatively high expectations; And take Quenching Treatment to improve superficial hardness; Manufacturability is comparatively complicated undoubtedly, and manufacturing cost is higher, but also will bear the security risk that connects position intensity.
Summary of the invention
The purpose of the utility model is: provide a kind of technology simple, and low cost of manufacture, and connect position intensity failure-free ball-and-nut power steering device steering control valve.
The utility model is to realize above-mentioned purpose through following technical scheme:
A kind of ball-and-nut power steering device steering control valve; It is made up of steering screw, damping ring, input shaft and torsion bar; It is characterized in that: input shaft is installed in the endoporus of steering screw through needle bearing A and needle bearing B; Be provided with torsion bar in the through hole at input shaft center, an end of torsion bar is connected with steering screw through straight pin A, and the other end of torsion bar is connected with input shaft through straight pin B.
Input shaft between described needle bearing A and the needle bearing B is provided with damping ring.
Described torsion bar is provided with the torsion bar seal groove, and zero shape rubber seal is housed in the torsion bar seal groove.
The utility model advantage compared with prior art is:
This ball-and-nut power steering device steering control valve, its valve pocket and input shaft are one-piece parts, compare with traditional control cock; Both cancelled the valve pocket single part; Also cancel the rigid connection element between valve pocket and the input shaft, avoided the complexity of technology, thereby practiced thrift manufacturing cost; Adopt two needle bearings to support input shaft simultaneously, can avoid producing friction between input shaft hydraulic fluid port sword limit and the steering screw endoporus, reduce the probability that deflector produces abnormal sound, the service life of also having improved steering control valve simultaneously in steering screw inside; In addition, the straight pin fixed connection position of torsion bar and steering screw is at the steering screw middle part, and the length of having saved torsion bar has greatly played the effect of falling cost.
Description of drawings:
Accompanying drawing is the structural representation of ball-and-nut power steering device steering control valve.
Among the figure: 1, steering screw, 2, straight pin A, 3, needle bearing A, 4, damping ring, 5, needle bearing B, 6, input shaft, 7, zero shape rubber seal, 8, straight pin B, 9, torsion bar.
The specific embodiment:
This ball-and-nut power steering device steering control valve is made up of steering screw 1, straight pin A2, straight pin B8, needle bearing A3, damping ring 4, needle bearing B5, input shaft 6, torsion bar 9.Input shaft 6 is installed in the endoporus of steering screw 1 through needle bearing A3 and needle bearing B5, and the input shaft 6 between needle bearing A3 and the needle bearing B5 is provided with damping ring 4.Be provided with torsion bar 9 in the through hole at input shaft 6 centers, torsion bar 9 is provided with the torsion bar seal groove, and zero shape rubber seal 7 is housed in the torsion bar seal groove.One end of torsion bar 9 is connected with steering screw 1 through straight pin A2, and the other end of torsion bar 9 is connected with input shaft 6 through straight pin B8.It is spacing to lean on four tooth splines to carry out angle between input shaft 6 and the steering screw 1.
Between the steering screw 1 of this ball-and-nut power steering device steering control valve and the input shaft 6 is free-running fit; Needle bearing A3 that install at the oil groove two ends of input shaft 6 and needle bearing B5 are to 6 supporting roles of input shaft; To avoid producing friction between input shaft 6 and the steering screw 1; Make the unlatching that forms the rotary valve oil circuit between six blind grooves of six oil grooves and steering screw 1 of input shaft 6 with closed, and make between the interior four tooth splines of four tooth splines and steering screw 1 of input shaft 6 and have mechanical angle spacing.4 pairs of input shafts 6 of damping ring are with respect to the shock damping action that turned to of steering screw 1, and the effect of zero shape rubber seal 7 is to prevent that deflector from producing external leakage.
This steering control valve, its valve pocket and input shaft 6 are one-piece parts, compare with traditional control cock, have both cancelled the valve pocket single part, have also cancelled the rigid connection element between valve pocket and the input shaft 6, have avoided the complexity of technology, thereby have practiced thrift manufacturing cost.Simultaneously, adopt needle bearing A3 and needle bearing B5, can reduce the probability that deflector produces abnormal sound supporting input shaft 6, and then the service life of having improved steering control valve; In addition, the length of torsion bar 9 has been saved greatly at steering screw 1 middle part in the fixed connection position of torsion bar 9 and steering screw 1, has played the effect of falling cost.
Claims (3)
1. ball-and-nut power steering device steering control valve; It is made up of steering screw (1), damping ring (4), input shaft (6) and torsion bar (9); It is characterized in that: input shaft (6) is installed in the endoporus of steering screw (1) through needle bearing A (3) and needle bearing B (5); Be provided with torsion bar (9) in the through hole at input shaft (6) center; One end of torsion bar (9) is connected with steering screw (1) through straight pin A (2), and the other end of torsion bar (9) is connected with input shaft (6) through straight pin B (8).
2. ball-and-nut power steering device steering control valve according to claim 1 is characterized in that: the input shaft (6) between described needle bearing A (3) and the needle bearing B (5) is provided with damping ring (4).
3. ball-and-nut power steering device steering control valve according to claim 1 is characterized in that: described torsion bar (9) is provided with the torsion bar seal groove, and zero shape rubber seal (7) is housed in the torsion bar seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204845174U CN202345757U (en) | 2011-11-29 | 2011-11-29 | Steering control valve of recirculating ball power steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204845174U CN202345757U (en) | 2011-11-29 | 2011-11-29 | Steering control valve of recirculating ball power steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202345757U true CN202345757U (en) | 2012-07-25 |
Family
ID=46534781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204845174U Expired - Fee Related CN202345757U (en) | 2011-11-29 | 2011-11-29 | Steering control valve of recirculating ball power steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202345757U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085870A (en) * | 2013-02-25 | 2013-05-08 | 豫北转向系统股份有限公司 | Rotary valve for hydraulic steering gear |
| CN103863391A (en) * | 2014-04-10 | 2014-06-18 | 荆州恒隆汽车零部件制造有限公司 | Pinion-and-rack type power steering gear valve element assembly |
| CN105109548A (en) * | 2015-09-21 | 2015-12-02 | 杭州世宝汽车方向机有限公司 | Internal limiting structure rotary valve for circulating ball power steering gear |
| CN107336739A (en) * | 2017-06-22 | 2017-11-10 | 安徽德孚转向系统股份有限公司 | A kind of new automobile electric power-assisted steering apparatus spindle mounted structure |
| CN108791467A (en) * | 2018-07-04 | 2018-11-13 | 湖北三环汽车方向机有限公司 | A kind of New Cycle ball-type power steering gear screw axis-torsion bar assembly |
-
2011
- 2011-11-29 CN CN2011204845174U patent/CN202345757U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085870A (en) * | 2013-02-25 | 2013-05-08 | 豫北转向系统股份有限公司 | Rotary valve for hydraulic steering gear |
| CN103863391A (en) * | 2014-04-10 | 2014-06-18 | 荆州恒隆汽车零部件制造有限公司 | Pinion-and-rack type power steering gear valve element assembly |
| CN105109548A (en) * | 2015-09-21 | 2015-12-02 | 杭州世宝汽车方向机有限公司 | Internal limiting structure rotary valve for circulating ball power steering gear |
| CN107336739A (en) * | 2017-06-22 | 2017-11-10 | 安徽德孚转向系统股份有限公司 | A kind of new automobile electric power-assisted steering apparatus spindle mounted structure |
| CN108791467A (en) * | 2018-07-04 | 2018-11-13 | 湖北三环汽车方向机有限公司 | A kind of New Cycle ball-type power steering gear screw axis-torsion bar assembly |
| CN108791467B (en) * | 2018-07-04 | 2024-01-30 | 湖北三环汽车方向机有限公司 | Screw shaft-torsion bar assembly of recirculating ball type power steering gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20141129 |
|
| EXPY | Termination of patent right or utility model |