CN2631894Y - Integral dynamic steering gear of vehicle rotary valve - Google Patents
Integral dynamic steering gear of vehicle rotary valve Download PDFInfo
- Publication number
- CN2631894Y CN2631894Y CN 02249816 CN02249816U CN2631894Y CN 2631894 Y CN2631894 Y CN 2631894Y CN 02249816 CN02249816 CN 02249816 CN 02249816 U CN02249816 U CN 02249816U CN 2631894 Y CN2631894 Y CN 2631894Y
- Authority
- CN
- China
- Prior art keywords
- steering gear
- oil
- cavity
- housing
- safety valve
- 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 - Lifetime
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Abstract
The utility model belongs to the field of monolithic vehicle rotary valve powering steering gear technology, relates to a monolithic vehicle rotary valve powering steering gear, including a steering control valve (10) and a steering gear (4), with which an oil inlet (3a) and an oil return tube (3b) are connected, wherein the steering gear includes a shell (4a), an input shaft (5) of the rack-nested piston (7) which runs through the shell, and a rocking shaft sector (9), which is jogged with the rack of the piston, wherein an oil return cavity is installed within the input shaft and is closely linked with the oil return tube; a safety valve (12) is inlayed within the shell where the oil inlet is joined up in the shell; an oil inlet channel (12a) is installed within the shell and is linked with the bottom of the safety valve. Thanks to the added safety valve on the steering gear, a further safe pressure relief is attained and thus protecting the steering gear and the rod and the arm of the steering system.
Description
Technical field: automobile rotary valve integral power steering gear of the present utility model relates to a kind of technical field of automobile rotary valve integral power steering gear.
Background technology: the structure of the automobile rotary valve integral power steering gear of using comprises steering control valve and deflector and oil inlet that links to each other with them and oil return pipe at present; this deflector comprises housing and runs through the input shaft of the piston that is with the band tooth bar of housing; and fan with piston-rack ingear rocker shaft tooth; the oil return cavity that communicates with oil return pipe is arranged in this input shaft; control by the Power Steering Pressure system drive in use; pass through oil tank; high pressure steering pump and oil pipe are connected with steering control valve and deflector; realize the control that turns to of deflector; though the high pressure steering pump of this kind structure has been equipped with safety valve; but the overflow weir diameter of this kind emergency valve seat is very little; only be 1 millimeter; cause obstruction easily; make piston malfunctioning, the bar and the arm of deflector and steering swivel system do not had due protective effect.
Summary of the invention: the purpose of this utility model is to provide a kind of automobile rotary valve integral power steering gear that the bar and the arm of deflector and steering swivel system are further played a protective role.
For achieving the above object, automobile rotary valve integral power steering gear of the present utility model comprises steering control valve and deflector and oil inlet that links to each other with them and oil return pipe, this deflector comprises housing and runs through the input shaft of the piston that is with the band tooth bar of housing, and fan with piston-rack ingear rocker shaft tooth, at housing inner carrier two ends epicoele and cavity of resorption are arranged respectively, the oil return cavity that communicates with oil return pipe is arranged in this input shaft, insert the housing place at oil inlet and also have a safety valve that is embedded in the housing, and in housing, be provided with the oil road that the oil return cavity of oil input channel that oil inlet communicates with the bottom of this safety valve and input shaft communicates with the sidewall of the bottom certain distance of this safety valve.
Described safety valve comprise the upper body and with the lower body of its interlocking, this upper body is the outer plug screw of an interior hexagonal, the cavity that one installation steel ball and spring are arranged in the lower body, this cavity also has a deflation hole near the place, upper body, and the cavity other end is provided with fuel feed hole and oil outlet in its end and sidewall respectively.
Described upper body is provided with ring groove, and the O RunddichtringO is housed on this groove.
The utility model is owing to increased a safety valve in deflector; this safety valve is connected in parallel between oil inlet and the oil return pipe; when high pressure steering pump charge oil pressure exceeds deflector design-calculated top pressure; pressure is delivered to steel ball and spring by the oil input channel that communicates with the bottom of this safety valve; the pressure that overcomes spring backs down steel ball; oil is entered from fuel feed hole again flow to oil return pipe through oil road from oil outlet; reduce pressure; after reaching equilibrium of pressure; steel ball sets back and clogs; and deflation hole is with the air venting in the safety valve pocket; be convenient to oil return; but this structure reaches safe unloading pressure, the purpose that the bar and the arm of deflector and steering swivel system further played a protective role.
Description of drawings: automobile rotary valve integral power steering gear of the present utility model is described in more detail below in conjunction with accompanying drawing.
Fig. 1 is the structure cutaway view of present used automobile rotary valve integral power steering gear.
Fig. 2 is the structure cutaway view of the utility model automobile rotary valve integral power steering gear.
Fig. 3 is the oil pressure control system schematic diagram of the utility model automobile rotary valve integral power steering gear.
Fig. 4 is the safety valve mounting structure cutaway view of the utility model automobile rotary valve integral power steering gear.
The enforcement of technical scheme: shown in Fig. 1～4, automobile rotary valve integral power steering gear of the present utility model comprises steering control valve 10 and deflector 4 and oil inlet 3a that links to each other with them and oil return pipe 3b, this deflector 4 comprises housing 4a and runs through the input shaft 5 of the piston 7 that is with the band tooth bar of housing, and with piston-rack ingear rocker shaft tooth fan 9, at housing inner carrier two ends epicoele 6 and cavity of resorption 8 are arranged respectively, the oil return cavity that communicates with oil return pipe 3b is arranged in this input shaft 5, insert housing 4a place at oil inlet 3a a safety valve 12 that is embedded in the housing is set, and in housing, be provided with the oil road 12b that the oil return cavity of oil input channel 12a that oil inlet 3a communicates with the bottom of this safety valve and input shaft 5 communicates with the sidewall of the bottom certain distance of this safety valve.
Described safety valve 12 comprise upper body 13 and with the lower body 15 of its interlocking, this upper body is the outer plug screw of an interior hexagonal, the cavity that one installation steel ball 17 and spring 16 are arranged in the lower body, this cavity also has a deflation hole 21 near the place, upper body, and the cavity other end is provided with fuel feed hole 19 and oil outlet 18 in its end and sidewall respectively.
Described upper body 13 is provided with ring groove, and O RunddichtringO 14 is housed on this groove.
Claims (3)
1. automobile rotary valve integral power steering gear, comprise steering control valve (10) and deflector (4) and oil inlet that links to each other with them (3a) and oil return pipe (3b), this deflector (4) comprises housing (4a) and runs through the input shaft (5) of the piston (7) that is with the band tooth bar of housing, and with piston-rack ingear rocker shaft tooth fan (9), epicoele (6) and cavity of resorption (8) are arranged respectively at housing inner carrier two ends, the oil return cavity that communicates with oil return pipe (3b) is arranged in this input shaft (5), it is characterized in that: insert housing (4a) at oil inlet (3a) and locate safety valve (12) that is embedded in the housing in addition, and in housing, be provided with the oil road (12b) that the oil return cavity of oil input channel (12a) that oil inlet (3a) communicates with the bottom of this safety valve and input shaft (5) communicates with the sidewall of the bottom certain distance of this safety valve.
2. automobile rotary valve integral power steering gear according to claim 1, it is characterized in that: described safety valve (12) comprise upper body (13) and with the lower body (15) of its interlocking, this upper body is the outer plug screw of an interior hexagonal, the cavity that one installation steel ball (17) and spring (16) are arranged in the lower body, this cavity also has a deflation hole (21) near the place, upper body, and the cavity other end is provided with fuel feed hole (19) and oil outlet (18) in its end and sidewall respectively.
3. automobile rotary valve integral power steering gear according to claim 2 is characterized in that: described upper body (13) are provided with ring groove, and O RunddichtringO (14) is housed on this groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02249816 CN2631894Y (en) | 2002-11-22 | 2002-11-22 | Integral dynamic steering gear of vehicle rotary valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02249816 CN2631894Y (en) | 2002-11-22 | 2002-11-22 | Integral dynamic steering gear of vehicle rotary valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2631894Y true CN2631894Y (en) | 2004-08-11 |
Family
ID=34280910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02249816 Expired - Lifetime CN2631894Y (en) | 2002-11-22 | 2002-11-22 | Integral dynamic steering gear of vehicle rotary valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2631894Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104228931A (en) * | 2014-09-06 | 2014-12-24 | 中国第一汽车股份有限公司 | Following steering gear assembly |
| CN109515516A (en) * | 2018-12-07 | 2019-03-26 | 安徽江淮汽车集团股份有限公司 | A kind of power steering system and its pipeline |
-
2002
- 2002-11-22 CN CN 02249816 patent/CN2631894Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104228931A (en) * | 2014-09-06 | 2014-12-24 | 中国第一汽车股份有限公司 | Following steering gear assembly |
| CN109515516A (en) * | 2018-12-07 | 2019-03-26 | 安徽江淮汽车集团股份有限公司 | A kind of power steering system and its pipeline |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121122 Granted publication date: 20040811 |