CN201677923U - Heavy steering preventing device for hydraulic power-assisted vehicle - Google Patents
Heavy steering preventing device for hydraulic power-assisted vehicle Download PDFInfo
- Publication number
- CN201677923U CN201677923U CN201020185806XU CN201020185806U CN201677923U CN 201677923 U CN201677923 U CN 201677923U CN 201020185806X U CN201020185806X U CN 201020185806XU CN 201020185806 U CN201020185806 U CN 201020185806U CN 201677923 U CN201677923 U CN 201677923U
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- steering
- power
- assisted
- hydraulic
- vehicle
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Abstract
A heavy steering preventing device for a hydraulic power-assisted vehicle relates to the technical field of using hydraulic pressure to control the moving vehicle steering. The heavy steering preventing device for a hydraulic power-assisted vehicle comprises a steering power-assisted hydraulic cylinder, a steering gear, a steering rack, and a steering distributing valve, the steering rack is inserted onto the steering power-assisted hydraulic cylinder, the rack which is exposed outside the steering power-assisted hydraulic cylinder is engaged with the steering gear, the steering power-assisted hydraulic cylinder is provided with two oil-ways, the two oil-ways are respectively connected with the steering distributing valve and are respectively connected with two four-way electromagnetic valves, and the two four-way electromagnetic valves are connected with a control button. The utility model realizes the purposes that the structure is simple, the steering resistance after the hydraulic power-assisted vehicle engine shuts off is reduced, the personal safety of the driver and passengers is ensured, and the service life of the vehicle is prolonged.
Description
Technical field
The utility model relates to the technical field of using the fluid control driving vehicle to turn to.
Background technology
The servo steering device of present a part of vehicle all is a fluid control.Power-steering propulsion source is a driving engine, can make hard steering behind engine off, meets emergency situation and also can't handle.The result that the flame-out neutral gear of hydraulic power-assisted steering vehicle slides is: no Jake brake, in a single day and lost servo-steering, can become heavy or malfunctioning during handling maneuver.If coasting speed is too fast, under the situation of break turn or emergency braking, moment is difficult to change travel direction, and generation unavoidably causes a traffic accident.The reason that hard steering produces is a lot, but main one is: power-assisted hydraulic oil deficiency, boost pump to the oil circuit of direction machine has gauffer, causes direction machine fuel feeding deficiency.
Summary of the invention
The utility model purpose provides a kind of simple in structure, reduces the cornering resistance of hydraulic power-assisted steering vehicle motor after flame-out, protection chaufeur and passenger's personal safety, prolong vehicle life span be applied to the hydraulic booster vehicle anti-ly turn to heavy device.
The utility model adopts following technical scheme for achieving the above object:
A kind of be applied to the hydraulic booster vehicle anti-turns to heavy device, comprise power steering hydraulic actuating cylinder, steering gear, steering rack, turn to distributing valve, steering rack is plugged on the power steering hydraulic actuating cylinder, be exposed at outward on the outer steering rack of power steering hydraulic actuating cylinder and mesh steering gear, the twice oil circuit is set on the power steering hydraulic actuating cylinder, the twice oil circuit is connected with turning to distributing valve respectively, connects two position four-way solenoid valves on the twice oil circuit respectively, and two position four-way solenoid valves are connected with control button.
The utility model by control button, two position four-way solenoid valves, servo-steering hydraulic actuating cylinder, steering gear, steering rack, turn to distributing valve to form.Control button connects two position four-way solenoid valves, controls the control position of two position four-way solenoid valves; Two four-ways are crossed electromagnetic valve and are connected the servo-steering hydraulic actuating cylinder, and control switching on and off of servo-steering hydraulic actuating cylinder two cavity oil road, the left and right sides; Turn to distributing valve to be connected with the servo-steering hydraulic actuating cylinder, control servo-steering hydraulic actuating cylinder produces the hydraulic booster of left and right directions; Steering gear and steering rack are meshing with each other, and realize that left and right vehicle wheel turns to; Steering rack also is the piston rod of servo-steering hydraulic actuating cylinder.
The utility model adopts technique scheme, compared with prior art has following advantage: after the hydraulic power-assisted steering vehicle motor is flame-out, as long as chaufeur is pressed control button, three position four-way electromagnetic valve is just connected two chambeies about the servo-steering hydraulic actuating cylinder, when chaufeur turns to, the hydraulic oil in two chambeies will take place to flow in two chambeies about the servo-steering hydraulic actuating cylinder, about after two chambeies connect, the resistance that two chamber hydraulic oil flow about having eliminated, thereby reduce cornering resistance greatly, make the effective control of chaufeur realization turning to.Have simple in structurely, reduce the cornering resistance of hydraulic power-assisted steering vehicle motor after flame-out, protection chaufeur and passenger's personal safety, the advantage that prolongs vehicle life span.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the technical solution of the utility model is elaborated:
As shown in Figure 1, a kind of be applied to the hydraulic booster vehicle anti-turns to heavy device, comprise power steering hydraulic actuating cylinder 3, steering gear 4, steering rack 5, turn to distributing valve 6, steering rack 5 is plugged on the power steering hydraulic actuating cylinder 3, be exposed at engagement steering gear 4 on the steering rack 5 outside the power steering hydraulic actuating cylinder 3 outward, the twice oil circuit is set on the power steering hydraulic actuating cylinder 3, the twice oil circuit is connected with turning to distributing valve 6 respectively, connecting two position four-way solenoid valves, 2, two position four-way solenoid valves 2 on the twice oil circuit respectively is connected with control button 1.
When hydraulic power-assisted steering vehicle engine off under steam; occur under the situation of hard steering; chaufeur is as long as in time press control button 1; three position four-way electromagnetic valve 2 right position work; two cavity oil road, servo-steering hydraulic actuating cylinder 3 left and right sides is switched on; the chaufeur steering wheel rotation makes steering gear 4 drive steering rack 5 sway; drive simultaneously and turn to distributing valve 6 rotations and change the control position that turns to distributing valve 6; the hydraulic oil in servo-steering hydraulic actuating cylinder about 3 two chambeies is by turning to distributing valve oil circuit resistance to flow very big; hinder the tooth bar sway; cause hard steering; at this moment; because the oil circuit in servo-steering hydraulic actuating cylinder about 3 two chambeies is connected by three four electromagnetic valves 2; make hydraulic oil about the resistance that flows of two chambeies reduce greatly, cornering resistance is reduced greatly, chaufeur just effectively control vehicle turn to; the generation that tries to forestall traffic accidents, protection personnel and vehicle safety.
Claims (1)
1. be applied to the hydraulic booster vehicle anti-turns to heavy device, comprise power steering hydraulic actuating cylinder (3), steering gear (4), steering rack (5), turn to distributing valve (6), steering rack (5) is plugged on the power steering hydraulic actuating cylinder (3), be exposed at the outer steering rack (5) of power steering hydraulic actuating cylinder (3) outward and go up engagement steering gear (4), the power steering hydraulic actuating cylinder is provided with the twice oil circuit on (3), the twice oil circuit is connected with turning to distributing valve (6) respectively, it is characterized in that connecting respectively on the twice oil circuit two position four-way solenoid valves (2), two position four-way solenoid valves (2) are connected with control button (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020185806XU CN201677923U (en) | 2010-05-11 | 2010-05-11 | Heavy steering preventing device for hydraulic power-assisted vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020185806XU CN201677923U (en) | 2010-05-11 | 2010-05-11 | Heavy steering preventing device for hydraulic power-assisted vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201677923U true CN201677923U (en) | 2010-12-22 |
Family
ID=43342978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020185806XU Expired - Fee Related CN201677923U (en) | 2010-05-11 | 2010-05-11 | Heavy steering preventing device for hydraulic power-assisted vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201677923U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105383553A (en) * | 2015-11-11 | 2016-03-09 | 淮安信息职业技术学院 | Electro-hydraulic power steering system of pure electric bus |
-
2010
- 2010-05-11 CN CN201020185806XU patent/CN201677923U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105383553A (en) * | 2015-11-11 | 2016-03-09 | 淮安信息职业技术学院 | Electro-hydraulic power steering system of pure electric bus |
| CN105383553B (en) * | 2015-11-11 | 2018-03-23 | 江苏大学 | A kind of pure electric coach electric hydraulic power-assisted steering system |
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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: 20101222 Termination date: 20110511 |