CN102079331A - Hydraulic control device for multiple drive steering ways of wheel type vehicle - Google Patents
Hydraulic control device for multiple drive steering ways of wheel type vehicle Download PDFInfo
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- CN102079331A CN102079331A CN 201010607354 CN201010607354A CN102079331A CN 102079331 A CN102079331 A CN 102079331A CN 201010607354 CN201010607354 CN 201010607354 CN 201010607354 A CN201010607354 A CN 201010607354A CN 102079331 A CN102079331 A CN 102079331A
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Abstract
The invention provides a hydraulic control device for multiple drive steering ways of a wheel type vehicle, which comprises a pressure-gradient control valve, a steering device, a traveling direction control valve, a reverse drive steering mode control valve, a travel steering mode control valve, a front-wheel steering oil cylinder, a rear-wheel steering oil cylinder, and the like, wherein the front-wheel steering oil cylinder and the rear-wheel steering oil cylinder are connected with front and rear axle steering mechanisms of a vehicle; under the control of the traveling direction control valve, the reverse drive steering mode control valve and the travel steering mode control valve, the front-wheel steering oil cylinder and the rear-wheel steering oil cylinder drive the front and the rear axle steering mechanisms of a vehicle so as to realize the front wheel steering, reverse drive steering, two-wheel steering, four-wheel steering and inclined drive for the vehicle drive. The hydraulic control device has the advantages of simple, safe and reliable system structure.
Description
Technical field
The present invention relates to the wheeled car hydraulic technique field of travelling, relate in particular to the multiple steering mode hydraulic control device that travels of a kind of wheeled car.
Background technology
Wheeled cars such as present mining car, construction machinery and equipment can not be reversed end for end in the tunnel, during slype construction such as tunnel, dykes and dams, can only lean on the reversing mode to carry out when vehicle withdraws from; Shi Youxu is by nation (limit) operation, and vehicle is difficult to reach by nation (limit) by advance and retreat.Existing wheeled car has only one-way traffic operation control mostly, can have only the minority full size vehicle by bi-directional vehicle, and arranges two operator'ies compartment and two cover driver behavior control setups at vehicle two, but all can not realize vehicle diagonal operation control.
Summary of the invention
Technical matters solved by the invention is to provide a kind of wheeled car the multiple steering mode hydraulic control device that travels, to solve the shortcoming in the above-mentioned background technology.
Technical matters solved by the invention realizes by the following technical solutions:
The multiple steering mode hydraulic control device that travels of wheeled car, it turns to mode control valve, backward going to turn to mode control valve, front-wheel steering oil cylinder, rear-axle steering oil cylinder etc. to form by pressure-gradient control valve, deflector, direction of travel control cock, walking.Wherein deflector is load load sensing all-hydraulic steering gear, pressure-gradient control valve is installed on the vehicle frame, turning to oil cylinder is piston-type hydraulic cylinder, it is two position four way solenoid valves that direction of travel control cock, backward going turn to mode control valve, and it is 3-position 4-way M type meta function electromagnetic valve that walking turns to mode control valve.Deflector is installed on the operator's station, and direction of travel control cock, backward going turn to mode control valve, walking to turn to mode control valve to be installed in vehicle frame, by console switch or travel switch control (operator's station is an operator's station that can turn to).
The P hydraulic fluid port of pressure-gradient control valve is connected with the Hydraulic Pump oil outlet of vehicle configuration, and the CF hydraulic fluid port of pressure-gradient control valve is connected with deflector P hydraulic fluid port, and the LS hydraulic fluid port of pressure-gradient control valve is connected with the LS hydraulic fluid port of deflector; The T hydraulic fluid port of deflector is connected with fuel tank, the A hydraulic fluid port of deflector connects backward going and turns to mode control valve P hydraulic fluid port to connect, backward going turns to mode control valve A hydraulic fluid port to be connected with before turning to oil cylinder A hydraulic fluid port, before turn to oil cylinder B hydraulic fluid port and backward going to turn to mode control valve B hydraulic fluid port to be connected, backward going turns to mode control valve T hydraulic fluid port and walking to turn to mode control valve T hydraulic fluid port to be connected; The B hydraulic fluid port of deflector is connected with the T hydraulic fluid port of direction of travel control cock, the B hydraulic fluid port and the walking of direction of travel control cock turns to mode control valve P hydraulic fluid port to be connected, walking turns to mode control valve A hydraulic fluid port to be connected with the A hydraulic fluid port of rear-axle steering oil cylinder, and the B hydraulic fluid port of rear-axle steering oil cylinder is connected with the B hydraulic fluid port of direction of travel control cock.Front and back turn to oil cylinder to be connected with bridge steering hardware before and after the vehicle, turn to oil cylinder powered vehicle front and back bridge steering hardware by front and back, realize Vehicular turn.
Principle of work of the present invention: when deflector was failure to actuate, deflector A, B, LS, T mouth did not all have oil, and deflector is in off working state, turns to oil cylinder all to be failure to actuate.When pump fuel feed pressure reached certain value, pressure-gradient control valve switched, and the pressure oil of oil pump passes through the EF mouth to other working oil path fuel feeding.
When rotating deflector, the feedback oil of deflector feeds back to the LS mouth of pressure-gradient control valve through the LS of deflector mouth, thereby controls pressure-gradient control valve preferentially to deflector oil circuit fuel feeding.
Direction of travel control cock no power, the vehicle normal direction of rotation is travelled; When backward going, direction of travel control cock energising, the oil circuit direction is switched, make the wheel steering custom with move ahead identical.
Walking turns to the mode control valve no power, the vehicle front-wheel steering, and the energising of one electromagnet is the four-wheel steering pattern, another electromagnet energising is vehicle diagonal pattern.
Backward going turns to mode control valve to turn to or four-wheel steering with control backward going two-wheeled.
Beneficial effect: the present invention has characteristics such as system architecture is simple, safe and reliable, and a covering device can be realized the wheeled car two way, obliquely travels, two-wheeled turns to, four-wheel steering.
Description of drawings
Fig. 1 is the scheme drawing of preferred embodiment of the present invention
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Referring to the preferred embodiment of the multiple steering mode hydraulic control device that travels of the described wheeled car of Fig. 1, turn to mode control valve 6, walking to turn to mode control valve 8, front-wheel steering oil cylinder 7, rear-axle steering oil cylinder 9 to form by pressure-gradient control valve 3, deflector 4, direction of travel control cock 5, backward going.
Deflector 4 is load load sensing all-hydraulic steering gear, pressure-gradient control valve 3 is installed on the vehicle frame, front-wheel steering oil cylinder 7, trailing wheel 9 are piston-type hydraulic cylinder, it is two position four way solenoid valves that direction of travel control cock 5, backward going turn to mode control valve 6, and walking turns to mode control valve 8 to be 3-position 4-way M type meta function electromagnetic valve.Deflector 4 is installed on the operator's station, and direction of travel control cock 5, backward going turn to mode control valve 6, walking to turn to mode control valve 8 to be installed in by the frame sides, are controlled by console switch.
The P hydraulic fluid port of pressure-gradient control valve 3 is connected with Hydraulic Pump 2 oil outlets of vehicle configuration, and the CF hydraulic fluid port of pressure-gradient control valve 3 is connected with deflector 4P hydraulic fluid port, and the LS hydraulic fluid port of pressure-gradient control valve 2 is connected with the LS hydraulic fluid port of deflector 4; The T hydraulic fluid port of deflector 4 is connected with fuel tank, the P hydraulic fluid port that the A hydraulic fluid port of deflector 4 connects direction of travel control cock 5 connects, the A hydraulic fluid port and the backward going of direction of travel control cock 5 turns to the P oil hydraulic fluid port of mode control valve 5 to link to each other, backward going turns to the A oil hydraulic fluid port of mode control valve 5 to be connected with the A hydraulic fluid port that before turns to oil cylinder 7, before turn to the B hydraulic fluid port of oil cylinder 7 to turn to the B hydraulic fluid port of mode control valve 5 to be connected with backward going, the T hydraulic fluid port that backward going turns to mode control valve 5 turns to the T hydraulic fluid port of mode control valve 8 to be connected with walking; The B hydraulic fluid port of deflector 4 is connected with the T hydraulic fluid port of direction of travel control cock 5, the B hydraulic fluid port of direction of travel control cock 5 turns to the P hydraulic fluid port of mode control valve 8 to be connected with walking, walking turns to the A hydraulic fluid port of mode control valve 8 to be connected with the A hydraulic fluid port of rear-axle steering oil cylinder 9, and the B hydraulic fluid port of rear-axle steering oil cylinder 9 is connected with the B hydraulic fluid port of direction of travel control cock 8.Before turn to oil cylinder 7, after turn to oil cylinder 9 and vehicle before and after the bridge steering hardware be connected, turn to mode control valve 6, walking to turn under the control of mode control valve 8 at walking directional control valve 5, backward going, by preceding turn to oil cylinder 7, after turn to bridge steering hardware before and after oil cylinder 9 powered vehicle, realize that vehicle ' front-wheel steering, backward going turn to, two-wheeled turns to, four-wheel steering, oblique travelling.
More than show and described groundwork of the present invention, principal character and advantage of the present invention.The technical personnel of the industry should be understood; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (1)
1. the multiple steering mode hydraulic control device that travels of wheeled car, it is characterized in that, comprise that pressure-gradient control valve, deflector, direction of travel control cock, walking turn to mode control valve, backward going to turn to mode control valve, front-wheel steering oil cylinder, rear-axle steering oil cylinder, wherein deflector is load load sensing all-hydraulic steering gear, pressure-gradient control valve is installed on the vehicle frame, turning to oil cylinder is piston-type hydraulic cylinder, it is two position four way solenoid valves that direction of travel control cock, backward going turn to mode control valve, and it is 3-position 4-way M type meta function electromagnetic valve that walking turns to mode control valve.Deflector is installed on the operator's station, and direction of travel control cock, backward going turn to mode control valve, walking to turn to mode control valve to be installed in vehicle frame, by console switch or travel switch control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010607354 CN102079331A (en) | 2010-12-27 | 2010-12-27 | Hydraulic control device for multiple drive steering ways of wheel type vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010607354 CN102079331A (en) | 2010-12-27 | 2010-12-27 | Hydraulic control device for multiple drive steering ways of wheel type vehicle |
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| CN102079331A true CN102079331A (en) | 2011-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010607354 Pending CN102079331A (en) | 2010-12-27 | 2010-12-27 | Hydraulic control device for multiple drive steering ways of wheel type vehicle |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897212A (en) * | 2012-11-09 | 2013-01-30 | 临沂三禾永佳动力有限公司 | Steering device for self-propelled sprayer |
| WO2013091424A1 (en) * | 2011-12-21 | 2013-06-27 | 中联重科股份有限公司 | Engineering mechanical vehicle, and vehicle steering following control system and method |
| CN104058003A (en) * | 2014-06-17 | 2014-09-24 | 宁波如意股份有限公司 | Hydraulic system used for longitudinal and transverse running switching of four-wheel four-direction running vehicle |
| CN110294018A (en) * | 2018-03-23 | 2019-10-01 | 集瑞联合重工有限公司 | Special purpose vehicle and its all-wheel control system |
| CN110745183A (en) * | 2019-11-29 | 2020-02-04 | 山东路得威工程机械制造有限公司 | Multi-steering mode walking frame capable of ensuring synchronous steering |
| CN113386853A (en) * | 2021-06-11 | 2021-09-14 | 中铁工程装备集团隧道设备制造有限公司 | Bidirectional driving hydraulic steering system and bidirectional driving vehicle |
| CN115075330A (en) * | 2022-06-27 | 2022-09-20 | 徐州徐工挖掘机械有限公司 | Bidirectional driving steering control system and method and excavator |
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| CN201190788Y (en) * | 2008-05-09 | 2009-02-04 | 中国人民解放军总装备部军械技术研究所 | Explosion-proof, bidirectional driving, omnidirectional running side forklift hydraulic power transmission control system |
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2010
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| JPH0948361A (en) * | 1995-08-09 | 1997-02-18 | Iseki & Co Ltd | Full hydraulic type steering device of tractor |
| RU2157774C2 (en) * | 1998-09-07 | 2000-10-20 | Военный автомобильный институт | Wheeled vehicle steering gear |
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| CN1737383A (en) * | 2004-08-21 | 2006-02-22 | 山东临工工程机械有限公司 | Embedded failure diagnosis apparatus of loading machine steering hydraulic system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013091424A1 (en) * | 2011-12-21 | 2013-06-27 | 中联重科股份有限公司 | Engineering mechanical vehicle, and vehicle steering following control system and method |
| CN102897212A (en) * | 2012-11-09 | 2013-01-30 | 临沂三禾永佳动力有限公司 | Steering device for self-propelled sprayer |
| CN104058003A (en) * | 2014-06-17 | 2014-09-24 | 宁波如意股份有限公司 | Hydraulic system used for longitudinal and transverse running switching of four-wheel four-direction running vehicle |
| CN104058003B (en) * | 2014-06-17 | 2016-02-24 | 宁波如意股份有限公司 | A kind of hydraulic efficiency pressure system travelling switching for four-wheel four direction driving vehicle portraitlandscape |
| CN110294018A (en) * | 2018-03-23 | 2019-10-01 | 集瑞联合重工有限公司 | Special purpose vehicle and its all-wheel control system |
| CN110745183A (en) * | 2019-11-29 | 2020-02-04 | 山东路得威工程机械制造有限公司 | Multi-steering mode walking frame capable of ensuring synchronous steering |
| CN110745183B (en) * | 2019-11-29 | 2024-05-28 | 山东路得威工程机械制造有限公司 | Multi-steering mode walking frame capable of guaranteeing synchronous steering |
| CN113386853A (en) * | 2021-06-11 | 2021-09-14 | 中铁工程装备集团隧道设备制造有限公司 | Bidirectional driving hydraulic steering system and bidirectional driving vehicle |
| CN115075330A (en) * | 2022-06-27 | 2022-09-20 | 徐州徐工挖掘机械有限公司 | Bidirectional driving steering control system and method and excavator |
| CN115075330B (en) * | 2022-06-27 | 2024-02-27 | 徐州徐工挖掘机械有限公司 | Bidirectional driving steering control system and method and excavator |
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Application publication date: 20110601 |