CN2688579Y - Hydraulic dynamic steering apparatus - Google Patents
Hydraulic dynamic steering apparatus Download PDFInfo
- Publication number
- CN2688579Y CN2688579Y CN 200420039861 CN200420039861U CN2688579Y CN 2688579 Y CN2688579 Y CN 2688579Y CN 200420039861 CN200420039861 CN 200420039861 CN 200420039861 U CN200420039861 U CN 200420039861U CN 2688579 Y CN2688579 Y CN 2688579Y
- Authority
- CN
- China
- Prior art keywords
- oil
- hydraulic
- power steering
- fluid pressure
- storage tank
- 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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- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The utility model provides a hydraulic dynamic steering apparatus, comprising a power steering gear, a steering power-assisted pump with fluid pressure, an oil storage tank, a promoting control valve with fluid pressure, a booster hydraulic cylinder with fluid pressure and a connecting oil pipe. The oil inlet of the steering power-assisted pump with fluid pressure connects with the oil storage tank by the oil pipe, and the oil outlet of the steering power-assisted pump is connected with one oil port of the promoting control valve with fluid pressure. One oil port of the promoting control valve with fluid pressure is connected with the oil inlet of the power steering gear by the oil pipe, and the return port of the power steering gear is connected with the return port of the oil storage tank by the oil pipe, and the inlet and outlet of oil of the booster hydraulic cylinder with fluid pressure connect with another two oil ports. The utility model introduces the promoting control valve with fluid pressure in the present hydraulic power steering apparatus, which provides power not only for diverting but also for rear supporting axle lifting. The utility model has the advantages of simple and practical structure and reduces cost, which contributes to the arrangement of the whole car.
Description
(1) technical field
The utility model relates to the hydraulic power steering system in the heavy-duty truck, belongs to heavy motor vehicle and turns to technical field.
(2) background technology
The hydraulic power steering apparatus of common heavy-duty truck is made up of power steering, hydraulic booster pump, petrol storage tank and oil pipe.Be connected together by oil pipe string between petrol storage tank, hydraulic booster pump and the power steering, form a complete loop.Low pressure fluid in the petrol storage tank enters the hydraulic booster pump through oil suction pipe and forms high-voltage oil liquid, and high-voltage oil liquid enters deflector through high pressure fuel pipe and realizes power steering, and fluid is got back to petrol storage tank through oil return pipe after the deflector off-load.
The heavy motor vehicle that rear trunnion can promote can be mentioned rear trunnion under unloaded and light load, both can reduce Tyte Wear, reduce oil consumption again, improved the ride comfort of car load simultaneously, increased drive axle ground-surface pressure is puted forth effort, improved wheel ground-surface adhesion value.For rear trunnion can be promoted, adopt Swing Arm Type Balanced Suspension at present, by promoting the hydraulic booster oil cylinder rear trunnion is mentioned.For realizing this function, need adopt independently that motor-drive pump is connected with storage battery as propulsion source, the pressure oil that motor-drive pump produces enters and promotes the hydraulic booster oil cylinder, realizes lifter motion.But the cost of kinetic pump is higher and need petrol storage tank be set separately, and it is big to take up room, and is unfavorable for the master layout of car load.
(3) summary of the invention
At the deficiencies in the prior art, the utility model provides a kind of novel hydraulic power steering gear that rear trunnion provides power that can be.
The utility model adopts following solution:
The novel hydraulic power steering gear is by power steering, the hydraulic booster pump, petrol storage tank, the hydraulic pressure lift control cock, hydraulic booster oil cylinder and connection oil pipe are formed, the oil inlet of hydraulic booster pump links to each other with the oil outlet of petrol storage tank by oil pipe, its oil outlet is connected with a hydraulic fluid port of hydraulic pressure lift control cock by oil pipe, a hydraulic fluid port of hydraulic pressure lift control cock links to each other with the oil inlet of power steering by oil pipe, the return opening of power steering links to each other with the return opening of petrol storage tank by oil pipe, and the oil inlet and outlet of hydraulic booster oil cylinder links to each other with two hydraulic fluid ports in addition of hydraulic pressure lift control cock.
The hydraulic pressure lift control cock is the hydraulic control three position four-way directional control valve.
The utility model has been introduced the hydraulic pressure lift control cock in the hydraulic circuit of existing hydraulic power steering apparatus, and with complete loop of hydraulic booster oil cylinder formation, promote control cock hydraulic booster pump by modulated pressure and not only provide power for turning to, also the lifting for rear trunnion provides power.Simple and practical, do not need to be provided with separately rear trunnion and promote required petrol storage tank and motor-drive pump, reduced cost, help the layout of car load.
(4) description of drawings
Fig. 1 is a structural principle scheme drawing of the present utility model.
Fig. 2 is the structural principle scheme drawing of hydraulic pressure lift control cock in the utility model.
Wherein: 1, power steering, 2,4,6,7, high pressure fuel pipe, 3, the hydraulic booster pump, 5, the hydraulic pressure lift control cock, 8, the hydraulic booster oil cylinder, 9, petrol storage tank, 10, oil suction pipe, 11, oil return pipe
(5) specific embodiment
Fig. 1 has provided structural principle scheme drawing of the present utility model.The oil inlet of hydraulic booster pump 3 links to each other with the oil outlet of petrol storage tank 9 by oil suction pipe 10 (low pressure), its oil outlet is connected with the P mouth of hydraulic pressure lift control cock 5 by high pressure fuel pipe 4, the T mouth of hydraulic pressure lift control cock 5 links to each other with the oil inlet of power steering 1 by high pressure fuel pipe 2, and the return opening of power steering 1 links to each other with the return opening that turns to petrol storage tank 9 by oil return pipe 11 (low pressure).Hydraulic pressure lift control cock 5 is actually a hydraulic control three position four-way directional control valve, and referring to Fig. 2, its A, B mouth link to each other with the oil inlet and outlet of hydraulic booster oil cylinder 8 respectively by high pressure fuel pipe 6,7, and the front of these two mouths respectively is provided with a hydraulic control one-way valve.
Hydraulic pressure lift control cock 5 has three control positions, i.e. lifting, meta, whereabouts.
When automobile normal running, the control position of hydraulic pressure lift control cock 5 is at meta, have only P mouth and T mouth to communicate this moment, the hydraulic oil of petrol storage tank 9 enters hydraulic booster pump 3 by oil suction pipe 10, high pressure oil links to each other with the oil inlet of power steering 1 by high pressure fuel pipe 4, the P of hydraulic pressure lift control cock 5, T mouth, high pressure fuel pipe 2, realizes power steering.Hydraulic oil flows back to from the return opening of power steering 1 and turns to petrol storage tank 9 after the off-load.This process also is the working process of the hydraulic power steering apparatus of common heavy-duty truck.Power steering in the utility model, hydraulic booster pump and hydraulic booster oil cylinder etc. are the same with existing parts also, so do not provide concrete structure figure in the accompanying drawing.
When lift location, the P of hydraulic pressure lift control cock 5, A mouth communicate, and T, B mouth communicate.The oil outlet of hydraulic booster pump 3 is connected with the P mouth of hydraulic pressure lift control cock 5 by high pressure fuel pipe 4, and pressure oil enters the epicoele of hydraulic booster oil cylinder 8, the lifting of promotion Swing Arm Type Balanced Suspension mechanism realization rear trunnion by P mouth, A mouth, high pressure fuel pipe 7.B, T mouth, high pressure fuel pipe 2, power steering 1, the oil return pipe 11 of the hydraulic oil of hydraulic booster oil cylinder 8 epicoeles by high pressure fuel pipe 6, hydraulic pressure lift control cock 5 flows back to and turns to petrol storage tank 9.
When the position, whereabouts, the P of hydraulic pressure lift control cock 5, B mouth communicate, and T, A mouth communicate, and the process by opposite when promoting realizes falling of rear trunnion.
The utility model for turn to power is provided in, realized the lifting of rear trunnion and fallen that the phase ratio device independently promotes propulsion source and reduced cost.And the lifting of rear trunnion and falling under dead ship condition is carried out, and has guaranteed the safety of power steering gear.
Claims (2)
1. novel hydraulic power steering gear, by power steering, the hydraulic booster pump, petrol storage tank, the hydraulic pressure lift control cock, hydraulic booster oil cylinder and connection oil pipe are formed, it is characterized in that: the oil inlet of hydraulic booster pump links to each other with the oil outlet of petrol storage tank by oil pipe, its oil outlet is connected with a hydraulic fluid port of hydraulic pressure lift control cock by oil pipe, a hydraulic fluid port of hydraulic pressure lift control cock links to each other with the oil inlet of power steering by oil pipe, the return opening of power steering links to each other with the return opening of petrol storage tank by oil pipe, and the oil inlet and outlet of hydraulic booster oil cylinder links to each other with two hydraulic fluid ports in addition of hydraulic pressure lift control cock.
2. novel hydraulic power steering gear according to claim 1 is characterized in that: described hydraulic pressure lift control cock is the hydraulic control three position four-way directional control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420039861 CN2688579Y (en) | 2004-04-22 | 2004-04-22 | Hydraulic dynamic steering apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420039861 CN2688579Y (en) | 2004-04-22 | 2004-04-22 | Hydraulic dynamic steering apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2688579Y true CN2688579Y (en) | 2005-03-30 |
Family
ID=34671318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420039861 Expired - Lifetime CN2688579Y (en) | 2004-04-22 | 2004-04-22 | Hydraulic dynamic steering apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2688579Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670246A (en) * | 2013-12-27 | 2014-03-26 | 淮南矿业(集团)有限责任公司 | Safety gate |
| WO2014056169A1 (en) * | 2012-10-11 | 2014-04-17 | 中联重科股份有限公司 | Hydraulic power-assisted steering system and chassis of engineering vehicle |
| CN103807227A (en) * | 2014-01-24 | 2014-05-21 | 大连液压件有限公司 | Heavy vehicle axle lifting hydraulic system |
| CN105315030A (en) * | 2014-11-18 | 2016-02-10 | 刘建忠 | Hydraulic crawler-type turner |
| CN105315018A (en) * | 2014-11-18 | 2016-02-10 | 刘建忠 | Rack of hydraulic crawler belt waking type turner |
-
2004
- 2004-04-22 CN CN 200420039861 patent/CN2688579Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014056169A1 (en) * | 2012-10-11 | 2014-04-17 | 中联重科股份有限公司 | Hydraulic power-assisted steering system and chassis of engineering vehicle |
| CN103670246A (en) * | 2013-12-27 | 2014-03-26 | 淮南矿业(集团)有限责任公司 | Safety gate |
| CN103670246B (en) * | 2013-12-27 | 2016-05-04 | 淮南矿业(集团)有限责任公司 | Safety gate |
| CN103807227A (en) * | 2014-01-24 | 2014-05-21 | 大连液压件有限公司 | Heavy vehicle axle lifting hydraulic system |
| CN105315030A (en) * | 2014-11-18 | 2016-02-10 | 刘建忠 | Hydraulic crawler-type turner |
| CN105315018A (en) * | 2014-11-18 | 2016-02-10 | 刘建忠 | Rack of hydraulic crawler belt waking type turner |
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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: 20140422 Granted publication date: 20050330 |