CN109649482A - Vehicle hydraulic steering system - Google Patents
Vehicle hydraulic steering system Download PDFInfo
- Publication number
- CN109649482A CN109649482A CN201910069330.9A CN201910069330A CN109649482A CN 109649482 A CN109649482 A CN 109649482A CN 201910069330 A CN201910069330 A CN 201910069330A CN 109649482 A CN109649482 A CN 109649482A
- Authority
- CN
- China
- Prior art keywords
- hand
- steering
- operated direction
- direction valve
- actuator port
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/062—Details, component parts
Abstract
The invention discloses a kind of vehicle hydraulic steering systems, including steering wheel mechanism and steering cylinder, the input end of the steering wheel mechanism connects hydraulic power supply, two outlet ends of the steering wheel mechanism are connected to the left chamber of the steering cylinder and right chamber respectively, the vehicle hydraulic steering system further includes switch valve and hand-operated direction valve, the hand-operated direction valve has oil inlet, first actuator port and the second actuator port, the oil inlet of the hand-operated direction valve is connect by the switch valve with the hydraulic power supply, first actuator port and the second actuator port are connected to the left chamber of the steering cylinder and right chamber respectively；The piston rod of the steering cylinder is connect with the handle of the hand-operated direction valve.Using vehicle hydraulic steering system of the invention, wheel returns just easy to operate and guarantees back positive precision, reduces the manipulation strength of driver.
Description
Technical field
The present invention relates to a kind of wheel steering systems, in particular to a kind of that wheel can be made quickly to return positive vehicle hydraulic turn
To system.
Background technique
Fig. 1 is the schematic diagram of existing vehicle hydraulic steering system, as shown, including steering wheel mechanism 10 and steering oil
Cylinder 20, the input end of the steering wheel mechanism 10 connect hydraulic power supply, and oil revolving end connects oil return box, the steering wheel mechanism 10
Two outlet ends be connected to respectively with the left chamber 201 of the steering cylinder 20 and right chamber 202, by the steering
Input hydraulic pressure oil in the right chamber 202 of oil cylinder 20 or left chamber 201 moves the piston 21 of the steering cylinder 20 to the left or to the right
It is dynamic to deviate, it drives piston rod 22 to be moved to the left or right, realizes the leftward or rightward steering of the wheel of vehicle.
Using existing vehicle hydraulic steering system, when wheel needs back timing, that is, need steering cylinder 20
Piston 21 is moved in middle position, it usually needs driver, which passes through, to be observed and operate the steering wheel of steering wheel mechanism 10, handle etc.
Actively return just, this needs driver's operation adjustment repeatedly, and may also return positive inaccuracy, especially for speed it is lower and
The engineering machinery vehicle that front-wheel rear-wheel all turns to, observation operation increases the manipulation strength of driver repeatedly, and wheel returns positive operation
It is comparatively laborious and difficult.
Summary of the invention
To solve the above problems, the present invention provides a kind of vehicle hydraulic steering system, the wheel of vehicle can be made quickly to return
Just, the manipulation strength of driver is reduced.
To achieve the above object, vehicle hydraulic steering system of the invention, including steering wheel mechanism and steering cylinder, it is described
The input end of steering wheel mechanism connects hydraulic power supply, two outlet ends of the steering wheel mechanism respectively with the steering cylinder
Left chamber be connected to right chamber, the vehicle hydraulic steering system further includes switch valve and hand-operated direction valve, described to change manually
There is oil inlet, the first actuator port and the second actuator port to valve, the oil inlet of the hand-operated direction valve passes through the switch
Valve is connect with the hydraulic power supply, first actuator port and the second actuator port left chamber with the steering cylinder respectively
Room is connected to right chamber；The piston rod of the steering cylinder is connect with the handle of the hand-operated direction valve；When the steering cylinder
Piston when being in middle position, the oil inlet of the hand-operated direction valve and first actuator port and the second actuator port are equal
Disconnect；When the piston of the steering cylinder therefrom deviate to the left chamber by position, the piston rod of the steering cylinder is driven
The handle of the hand-operated direction valve connects the oil inlet of the hand-operated direction valve and first actuator port；Work as institute
When stating the piston of steering cylinder therefrom position being deviateed to the right chamber, the piston rod of the steering cylinder drives the manual reverse of direction
The handle of valve connects the oil inlet of the hand-operated direction valve and second actuator port.
Preferably, the piston rod of the steering cylinder is connect with the handle of the hand-operated direction valve by lever mechanism.
Preferably, the switch valve uses two position two-way valve.
Preferably, hand-operated direction valve uses three-position four-way valve.
Using vehicle hydraulic steering system of the invention, no matter wheel steering passes through Operation switch valve in which direction
Connection can realize that a key returns just, and wheel returns just easy to operate and guarantees back positive precision, and it is cumbersome and inaccurate to avoid driver
True operation reduces the manipulation strength of driver.
Detailed description of the invention
Fig. 1 is the schematic diagram of existing vehicle hydraulic steering system；
Fig. 2 is the schematic diagram of vehicle hydraulic steering system of the invention.
Specific embodiment
"left", "right" etc. in the present invention is only used for indicating relative positional relationship, when the absolute position for being described object changes
After change, then the relative positional relationship may also correspondingly change.
In order to keep the following explanation of the invention for disclosing embodiment to understand and simplicity, present invention omits known function and
Know the detailed description of component.Explain a specific embodiment of the invention in detail with reference to the accompanying drawings.
As shown in Fig. 2, vehicle hydraulic steering system of the invention, including steering wheel mechanism 10 and steering cylinder 20, it is described
The input end of steering wheel mechanism 10 connects hydraulic power supply, and the hydraulic power supply can be hydraulic pump, the steering wheel mechanism
10 two outlet ends are connected to the left chamber 201 of the steering cylinder 20 and right chamber 202 respectively, by described turn
The input hydraulic pressure oil into the right chamber 202 of oil cylinder 20 or left chamber 201 keeps the piston 21 of the steering cylinder 20 leftward or rightward
Movement deviates, and drives piston rod 22 to be moved to the left or right, realizes the leftward or rightward steering of the wheel of vehicle.When described
When the piston 21 of steering cylinder 20 is in middle position, the wheel of vehicle neither turns to the left nor to the right, that is to say, that described turn
The position for turning to wheel not is in middle position, usually by the work of the steering cylinder 20 to the piston 21 of oil cylinder 20
Middle part of the plug 21 in the steering cylinder 20 is middle position.
Vehicle hydraulic steering system of the invention further includes switch valve 30 and hand-operated direction valve 40, the hand-operated direction valve
40 have oil inlet P, the first actuator port A and the second actuator port B, and there are also oil return inlet T, oil return inlet T can be closed or be connect
Oil return box.The oil inlet P of the hand-operated direction valve 40 is connect by the switch valve 30 with the hydraulic power supply, and described first
Actuator port A and the second actuator port B are connected to the left chamber 201 of the steering cylinder 20 and right chamber 202 respectively；Described turn
It is connect to the piston rod 22 of oil cylinder 20 with the handle 41 of the hand-operated direction valve 40.
When the piston 21 of the steering cylinder 20 is in middle position, the oil inlet P of the hand-operated direction valve 40 and institute
It states the first actuator port A and the second actuator port B disconnects；When the steering cylinder 20 piston 21 therefrom position to the left side
When chamber 201 deviates, the piston rod 22 of the steering cylinder 20 drives the handle 41 of the hand-operated direction valve 40, makes described manual
The oil inlet P of reversal valve 40 and the first actuator port A are connected, at this moment, when the switch valve 30 is connected, the liquid
Pressure power source makes the piston 21 return to middle position to 201 fuel feeding of left chamber；When the steering cylinder 20 piston 21 therefrom
When position is deviateed to the right chamber 202, the piston rod 22 of the steering cylinder 20 drives the handle 41 of the hand-operated direction valve 40,
The oil inlet P and the second actuator port B for making the hand-operated direction valve 40 are connected, at this moment, when the switch valve 30 connects
When logical, the hydraulic power supply makes the piston 21 return to middle position to 202 fuel feeding of right chamber.When the switch valve 30 is disconnected
When opening, the hydraulic power supply will not be to 202 fuel feeding of the left chamber 201 and right chamber, therefore 20 attonity of steering cylinder.And
And when the switch valve 30 is connected, but the piston 21 of the steering cylinder 20 is in middle position, the institute of the hand-operated direction valve 40
It states oil inlet P to disconnect with the first actuator port A and the second actuator port B, therefore 20 attonity of steering cylinder.
Institute can be made when vehicle is turned to by steering wheel mechanism 10 using vehicle hydraulic steering system of the invention
Stating the piston 21 of steering cylinder 20, therefrom position is deviateed to the left chamber 201 and right chamber 202.If driver need by
Wheel returns timing, it is only necessary to Operation switch valve 30, so that it may return wheel just.
The switch valve 30 can be controlled using button, realize a key operation.The switch valve 30 is preferably using using two
Position two-port valve.The hand-operated direction valve 40 preferably uses three-position four-way valve.
The piston rod 22 of the steering cylinder 20 is connect with the handle 41 of the hand-operated direction valve 40 by lever mechanism 50.
The lever both ends of the lever mechanism 50 are hinged with the piston rod 22 and handle 41 respectively, by adjusting the lever mechanism 50
Position of the fulcrum, the stroke of the stroke of the piston 21 and the spool of the hand-operated direction valve 40 can be matched.
As described above, exemplary embodiments of the invention are described in detail referring to attached drawing.It should
Solution, the present invention, which is not intended to, makes these details constitute limiting the scope of the invention.Without departing substantially from according to this hair
In the case where bright spirit and scope, can the structure and features to exemplary embodiments carry out equivalent or similar change
Become, these changes will also be fallen in protection scope determined by claims appended hereto.
Claims (4)
1. the input end of a kind of vehicle hydraulic steering system, including steering wheel mechanism and steering cylinder, the steering wheel mechanism connects
Hydraulic power supply is connect, two outlet ends of the steering wheel mechanism connect with the left chamber of the steering cylinder and right chamber respectively
It is logical, which is characterized in that the vehicle hydraulic steering system further includes switch valve and hand-operated direction valve,
The hand-operated direction valve has oil inlet, the first actuator port and the second actuator port, the oil inlet of the hand-operated direction valve
Mouthful connect with the hydraulic power supply by the switch valve, first actuator port and the second actuator port respectively with it is described
The left chamber of steering cylinder is connected to right chamber；
The piston rod of the steering cylinder is connect with the handle of the hand-operated direction valve；
When the piston of the steering cylinder is in middle position, the oil inlet of the hand-operated direction valve and first working oil
Mouth and the second actuator port are disconnected；When the piston of the steering cylinder therefrom deviate to the left chamber by position, described turn
The handle that the hand-operated direction valve is driven to the piston rod of oil cylinder makes the oil inlet and described first of the hand-operated direction valve
Actuator port is connected；When the piston of the steering cylinder therefrom deviate to the right chamber by position, the piston of the steering cylinder
Bar drives the handle of the hand-operated direction valve, connects the oil inlet of the hand-operated direction valve with second actuator port
It is logical.
2. vehicle hydraulic steering system as described in claim 1, which is characterized in that the piston rod of the steering cylinder with it is described
The handle of hand-operated direction valve is connected by lever mechanism.
3. vehicle hydraulic steering system as described in claim 1, which is characterized in that the switch valve uses two position two-way valve.
4. vehicle hydraulic steering system as described in claim 1, which is characterized in that hand-operated direction valve uses three-position four-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910069330.9A CN109649482A (en) | 2019-01-24 | 2019-01-24 | Vehicle hydraulic steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910069330.9A CN109649482A (en) | 2019-01-24 | 2019-01-24 | Vehicle hydraulic steering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109649482A true CN109649482A (en) | 2019-04-19 |
Family
ID=66121400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910069330.9A Pending CN109649482A (en) | 2019-01-24 | 2019-01-24 | Vehicle hydraulic steering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109649482A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110371186A (en) * | 2019-08-27 | 2019-10-25 | 廊坊中博工程机械设备制造有限公司 | A kind of integral type chassis four-wheel steering assembly, working method and multifunction operation vehicle elevation |
| CN110861708A (en) * | 2019-12-17 | 2020-03-06 | 重庆达航工业有限公司 | Four-wheel steering system for aircraft tractor and steering control method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6317175A (en) * | 1986-07-10 | 1988-01-25 | Atsugi Motor Parts Co Ltd | Power steering device |
| JPH03220066A (en) * | 1990-01-26 | 1991-09-27 | Nissan Motor Co Ltd | Four-wheel steering device for vehicle |
| JPH06127400A (en) * | 1992-10-23 | 1994-05-10 | Mitsubishi Motors Corp | Totally hydraulic large steering angle antiphase four-wheel steering system |
| US5761627A (en) * | 1993-10-16 | 1998-06-02 | Trw Fahrewrksysteme Gmbh & Co. Kg | Power-assisted steering system |
| DE10344662A1 (en) * | 2003-09-25 | 2005-05-04 | Cuadro Diogenes Perez | Hydraulic steering system for motor vehicle has regulating pump for high frequency intermittent transport operation as hydraulic pressure source for operating servo motor in one or other direction |
| JP2010137782A (en) * | 2008-12-12 | 2010-06-24 | Nissan Motor Co Ltd | Electrohydraulic power steering device |
| CN202243640U (en) * | 2011-08-12 | 2012-05-30 | 天津市松正电动科技有限公司 | Energy-saving hydraulic power-assisted steering system |
| CN105539573A (en) * | 2015-12-07 | 2016-05-04 | 三一汽车起重机械有限公司 | Steering active returning system and method for all-terrain crane |
| CN108891481A (en) * | 2018-07-17 | 2018-11-27 | 四川川龙拖拉机制造有限公司 | 4-wheel Steering Control System, carriage and four-wheel tractor |
| CN209581613U (en) * | 2019-01-24 | 2019-11-05 | 安百拓（南京）建筑矿山设备有限公司 | Vehicle hydraulic steering system |
-
2019
- 2019-01-24 CN CN201910069330.9A patent/CN109649482A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6317175A (en) * | 1986-07-10 | 1988-01-25 | Atsugi Motor Parts Co Ltd | Power steering device |
| JPH03220066A (en) * | 1990-01-26 | 1991-09-27 | Nissan Motor Co Ltd | Four-wheel steering device for vehicle |
| JPH06127400A (en) * | 1992-10-23 | 1994-05-10 | Mitsubishi Motors Corp | Totally hydraulic large steering angle antiphase four-wheel steering system |
| US5761627A (en) * | 1993-10-16 | 1998-06-02 | Trw Fahrewrksysteme Gmbh & Co. Kg | Power-assisted steering system |
| DE10344662A1 (en) * | 2003-09-25 | 2005-05-04 | Cuadro Diogenes Perez | Hydraulic steering system for motor vehicle has regulating pump for high frequency intermittent transport operation as hydraulic pressure source for operating servo motor in one or other direction |
| JP2010137782A (en) * | 2008-12-12 | 2010-06-24 | Nissan Motor Co Ltd | Electrohydraulic power steering device |
| CN202243640U (en) * | 2011-08-12 | 2012-05-30 | 天津市松正电动科技有限公司 | Energy-saving hydraulic power-assisted steering system |
| CN105539573A (en) * | 2015-12-07 | 2016-05-04 | 三一汽车起重机械有限公司 | Steering active returning system and method for all-terrain crane |
| CN108891481A (en) * | 2018-07-17 | 2018-11-27 | 四川川龙拖拉机制造有限公司 | 4-wheel Steering Control System, carriage and four-wheel tractor |
| CN209581613U (en) * | 2019-01-24 | 2019-11-05 | 安百拓（南京）建筑矿山设备有限公司 | Vehicle hydraulic steering system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110371186A (en) * | 2019-08-27 | 2019-10-25 | 廊坊中博工程机械设备制造有限公司 | A kind of integral type chassis four-wheel steering assembly, working method and multifunction operation vehicle elevation |
| CN110371186B (en) * | 2019-08-27 | 2024-03-08 | 廊坊中博工程机械设备制造有限公司 | Integrated chassis four-wheel steering device, working method and multifunctional working vehicle |
| CN110861708A (en) * | 2019-12-17 | 2020-03-06 | 重庆达航工业有限公司 | Four-wheel steering system for aircraft tractor and steering control method |
| CN110861708B (en) * | 2019-12-17 | 2023-06-27 | 重庆达航工业有限公司 | Four-wheel steering system and steering control method for aircraft tractor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109649482A (en) | Vehicle hydraulic steering system | |
| CN203770272U (en) | Integrated hydraulic valve set, hydraulic drive system and concrete pump | |
| WO2007139838B1 (en) | Variable valve actuator with latch at one end | |
| US10323658B2 (en) | Hydraulic drive system for operation table | |
| CN209581613U (en) | Vehicle hydraulic steering system | |
| GB589359A (en) | Improvements in or relating to fluid pressure servo-motor systems | |
| CN209581612U (en) | Vehicle electric hydraulic steering system | |
| CN104421237A (en) | Hydraulic system for dumper lifting mechanism | |
| CN106015129A (en) | Single- and multi-control switching reciprocating type supercharger | |
| CN203670322U (en) | Loading machine hydraulic cylinder movement velocity electro-hydraulic proportional control system | |
| CN109649483A (en) | Vehicle electric hydraulic steering system | |
| CN108909695A (en) | The stop device of vehicle | |
| CN205013440U (en) | Hydraulic hoist machine hydraulic cylinder's locking device | |
| CN109307093B (en) | Accurate control system for opening of large ball valve | |
| US4627328A (en) | Hydraulic actuator-control arrangement for concrete pump | |
| SE523109C2 (en) | Device for power transmission of a working machine | |
| CN109973464A (en) | Hydraulic, manual double-driving moves cylinder and application method and self-locking method | |
| CN216865314U (en) | Loader control system | |
| CN217081525U (en) | Plate type manual proportional reversing valve | |
| CN205173103U (en) | Bull -dozer steering hydraulic system valve that commutates | |
| EP1516805A3 (en) | Simplified electro-hydraulic circuit for a motorcycle stand actuator | |
| CN106989076A (en) | Reciprocating booster is freely changed in control more than a kind of list | |
| CN104653537B (en) | Lockable reversing valve | |
| US1309076A (en) | paine | |
| GB860665A (en) | Hydraulic ram and selector mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |