CN206049782U - A kind of anti-force type power steering gear system - Google Patents
A kind of anti-force type power steering gear system Download PDFInfo
- Publication number
- CN206049782U CN206049782U CN201620976302.7U CN201620976302U CN206049782U CN 206049782 U CN206049782 U CN 206049782U CN 201620976302 U CN201620976302 U CN 201620976302U CN 206049782 U CN206049782 U CN 206049782U
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- China
- Prior art keywords
- piston ring
- rotating shaft
- housing
- gear system
- type power
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 3
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
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- Power Steering Mechanism (AREA)
Abstract
The utility model discloses a kind of anti-force type power steering gear system, including booster housing, the hydraulic steering cylinder in housing, the rotating shaft for connecting hydraulic steering cylinder, being arranged with the rotating shaft can be along the axially movable piston ring of rotating shaft, the retainer being fixed on housing is provided with below the piston ring, multiple steel balls that can be rolled are provided between the piston ring and rotating shaft surface, the plunger shaft for piston ring movement is provided with the housing, the proportional solenoid of oil circuit control is connected with the plunger shaft, above the piston ring, back-moving spring is connected with.The pressure of this utility model passing ratio solenoid valve control piston intracavity, increase or decrease the frictional force between steel ball and rotating shaft, so as to increase or decrease steering force required during axis of rotation, play when automobile low cruise, can steering wheel rotation easily, during high-speed running automobile, the more steady technique effect of steering wheel rotation.
Description
Technical field
This utility model is related to a kind of accessory of automobile booster, and in particular to a kind of anti-force type power steering gear system.
Background technology
The Main Function of automobile booster is to aid in driver to mitigate the use force intensity for beating steering wheel, opens car more to obtain
The heart answers handss.Steering booster on automobile typically has two kinds of fluid pressure type and electrodynamic type at present, and fluid pressure type booster includes turning to
The switching valve of hydraulic cylinder and control hydraulic steering cylinder conduit under fluid pressure, the switching valve are connected with steering wheel by drive mechanism.When
During automobile low cruise, tire is larger with the frictional force on ground, driver need with larger power can steering wheel rotation, hold
Easily cause fatigue driving；When high-speed running automobile, tire is less with the frictional force on ground, and driver can rotation direction easily
Disk, it is too fast yet with speed, when steering wheel rotates larger, easily cause sideslip or overturn, with larger potential safety hazard.Cause
This, needs increase auxiliary device on booster, to reach easy steering wheel rotation during low speed, steering wheel rotation are difficult during high speed
Effect.
The content of the invention
In order to overcome the deficiencies in the prior art, this utility model provide it is a kind of it is rational in infrastructure, can provide for booster and help
The anti-force type power steering gear system of power.
This utility model solves the technical scheme adopted by its technical problem：
A kind of anti-force type power steering gear system, including booster housing, the hydraulic steering cylinder in housing, connection
The rotating shaft of hydraulic steering cylinder, being arranged with the rotating shaft can be along the axially movable piston ring of rotating shaft, the lower section of the piston ring
The retainer being fixed on housing is provided with, multiple steel balls that can be rolled between the piston ring and rotating shaft surface, are provided with, it is described
The plunger shaft for piston ring movement is provided with housing, the proportional solenoid of oil circuit control, the work in the plunger shaft, is connected with
Back-moving spring is connected with above plug ring.
In this utility model, in the plunger shaft, relief valve is also associated with.
In this utility model, between the piston ring and the inwall of housing, sealing ring is provided with.
The beneficial effects of the utility model are：The pressure of this utility model passing ratio solenoid valve control piston intracavity, increases
The frictional force added deduct between few steel ball and rotating shaft, so as to increase or decrease steering force required during axis of rotation, plays and works as vapour
During car low cruise, can steering wheel rotation easily, during high-speed running automobile, the more steady technique effect of steering wheel rotation.
Description of the drawings
This utility model is further illustrated with embodiment below in conjunction with the accompanying drawings：
Structural representations of the Fig. 1 for the present embodiment；
Right side cross-sectional views of the Fig. 2 for Fig. 1.
Specific embodiment
Referring to figs. 1 to Fig. 2, a kind of anti-force type power steering gear system that the present embodiment is provided, including booster housing
1st, in housing 1 hydraulic steering cylinder 2, the rotating shaft 3 of connection hydraulic steering cylinder 2, the hydraulic steering cylinder 2 are conventional power-assisted
The steering mechanism of device, will not be described here, and being arranged with the rotating shaft 3 can be along 3 axially movable piston ring 4 of rotating shaft, the shell
The plunger shaft 7 for the movement of piston ring 4 is provided with body 1, the lower section of the piston ring 4 is provided with the retainer 5 being fixed on housing 1,
Piston ring 4 is separated with hydraulic steering cylinder 2 by retainer 5, make piston ring 4 keep free movement, the piston ring 4 and housing
Sealing ring 11 is provided between 1 inwall, multiple steel balls 6 that can be rolled between 3 surface of the piston ring 4 and rotating shaft, are provided with, is turned
Axle 3 is provided with and 6 corresponding groove of steel ball, and steel ball 6 is placed in groove, and the ratio of oil circuit control is connected with the plunger shaft 7
Example electromagnetic valve 8, the control end of the proportional solenoid 8 are connected with automotive control system or velocity sensor, work as car speed
During change, the action of proportional solenoid 8 also and then changes, and causes the pressure change in plunger shaft 7 so that piston ring 4 is to steel ball 6
Extruding force also with change, finally change into the change in friction force between steel ball 6 and rotating shaft 3, reach control steering force mesh
, used as preferred embodiment, the piston ring 4 is connected with back-moving spring 9 above, when the pressure in plunger shaft 7 becomes hour,
Back-moving spring 9 drives piston ring 4 up to reset, and reduces pressure of the piston ring 4 to steel ball 6.
In the present embodiment, in order to prevent rotating shaft 3 from locking phenomenon occur, relief valve 10 in the plunger shaft 7, is also associated with,
The relief valve 10 is also connected with hydraulic steering cylinder 2.
Preferred embodiments of the present utility model are the foregoing is only, as long as this utility model is realized with essentially identical means
The technical scheme of purpose is belonged within protection domain of the present utility model.
Claims (3)
1. a kind of anti-force type power steering gear system, including booster housing（1）, installed in housing（1）Interior hydraulic steering cylinder
（2）, connection hydraulic steering cylinder（2）Rotating shaft（3）, it is characterised in that：The rotating shaft（3）On be arranged with can be along rotating shaft（3）Axle
To the piston ring of activity（4）, the piston ring（4）Lower section be provided with and be fixed on housing（1）On retainer（5）, the piston
Ring（4）With rotating shaft（3）Multiple steel balls that can be rolled are provided between surface（6）, the housing（1）Inside it is provided with and supplies piston ring（4）
Mobile plunger shaft（7）, the plunger shaft（7）On be connected with the proportional solenoid of oil circuit control（8）, the piston ring（4）On
Face is connected with back-moving spring（9）.
2. a kind of anti-force type power steering gear system according to claim 1, it is characterised in that：The plunger shaft（7）On
It is also associated with relief valve（10）.
3. a kind of anti-force type power steering gear system according to claim 1 and 2, it is characterised in that：The piston ring（4）
With housing（1）Inwall between be provided with sealing ring（11）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620976302.7U CN206049782U (en) | 2016-08-29 | 2016-08-29 | A kind of anti-force type power steering gear system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620976302.7U CN206049782U (en) | 2016-08-29 | 2016-08-29 | A kind of anti-force type power steering gear system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206049782U true CN206049782U (en) | 2017-03-29 |
Family
ID=58377469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620976302.7U Active CN206049782U (en) | 2016-08-29 | 2016-08-29 | A kind of anti-force type power steering gear system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206049782U (en) |
-
2016
- 2016-08-29 CN CN201620976302.7U patent/CN206049782U/en active Active
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| GR01 | Patent grant |