CN104709345A - Hydraulic steering system - Google Patents

Hydraulic steering system Download PDF

Info

Publication number
CN104709345A
CN104709345A CN201310678105.8A CN201310678105A CN104709345A CN 104709345 A CN104709345 A CN 104709345A CN 201310678105 A CN201310678105 A CN 201310678105A CN 104709345 A CN104709345 A CN 104709345A
Authority
CN
China
Prior art keywords
circuit
prefill valve
hydraulic pump
oil cylinder
valve
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
Application number
CN201310678105.8A
Other languages
Chinese (zh)
Inventor
倪军
张正明
陈国康
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MINGGUANG HAOMIAO FIRE-FIGHTING TECHNOLOGY DEVELOPMENT Co Ltd
Original Assignee
MINGGUANG HAOMIAO FIRE-FIGHTING TECHNOLOGY DEVELOPMENT Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MINGGUANG HAOMIAO FIRE-FIGHTING TECHNOLOGY DEVELOPMENT Co Ltd filed Critical MINGGUANG HAOMIAO FIRE-FIGHTING TECHNOLOGY DEVELOPMENT Co Ltd
Priority to CN201310678105.8A priority Critical patent/CN104709345A/en
Publication of CN104709345A publication Critical patent/CN104709345A/en
Pending legal-status Critical Current

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
    • B62D5/08—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of steering valve used

Abstract

The invention discloses a hydraulic steering system, which is composed of an oil cylinder, an energy accumulator, a pressure switch, a load sensitive proportional valve bank, a prefill valve, a hydraulic pump and an oil tank. The energy accumulator is connected to the prefill valve through a circuit; the prefill valve is connected to the hydraulic pump through a circuit; the prefill valve is connected to the oil cylinder through another circuit; the oil tank is connected to the oil cylinder through a circuit, and to the hydraulic pump through another circuit; the load sensitive proportional valve bank is connected to the circuit between the energy accumulator and the prefill valve. The system has the beneficial effect that when all-wheel steering is needed, follow-up can be realized as a tractor performs steering, and automatic centering is only required when the tractor performs steering.

Description

A kind of hydrostatic steering system
Technical field
The invention belongs to mechanical electric control field, particularly relate to a kind of hydrostatic steering system.
Background technology
Electric powered steering directly provides power-assisted with electrical motor, the power steering system that power-assisted size is controlled by ECU (Electrical Control Unit) (ECU).Torque sensor and steering shaft link together, and when steering axes, working sensor, passes to ECU by signal, ECU, determine the power-assisted effect of electrical motor according to the speed of a motor vehicle, to ensure that automobile is driven when low speed light, reliable and stable during high speed.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the hydrostatic steering system of the automatic distribution that can realize flow during a kind of follow-up steering is provided.
The present invention takes following technical scheme to realize: a kind of hydrostatic steering system, it is by oil cylinder, energy storage, pressure switch, load-sensitive apportioning valve group, prefill valve, Hydraulic Pump and fuel tank composition, described energy storage is connected with prefill valve by a circuit, described prefill valve is connected with Hydraulic Pump by a circuit, described prefill valve is connected with oil cylinder by another circuit, described fuel tank is connected with oil cylinder by a circuit, be connected with Hydraulic Pump by another circuit, described load-sensitive apportioning valve group is connected on the circuit between energy storage and prefill valve by circuit.
The present invention has following beneficial effect in sum: this system can when needs four-wheel steering and tractor truck turn to realize servo-actuated, automatic centering when only needing tractor truck to turn to.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Detailed description of the invention
As shown in Figure 1, a kind of hydrostatic steering system, it is made up of oil cylinder, energy storage, pressure switch, load-sensitive apportioning valve group, prefill valve, Hydraulic Pump and fuel tank, described energy storage is connected with prefill valve by a circuit, described prefill valve is connected with Hydraulic Pump by a circuit, described prefill valve is connected with oil cylinder by another circuit, described fuel tank is connected with oil cylinder by a circuit, be connected with Hydraulic Pump by another circuit, described load-sensitive apportioning valve group is connected on the circuit between energy storage and prefill valve by circuit.
The above is embodiments of the invention, therefore all equivalences done according to structure, feature and the principle described in the present patent application scope change or modify, and are included in patent claim of the present invention.

Claims (1)

1. a hydrostatic steering system, it is made up of oil cylinder, energy storage, pressure switch, load-sensitive apportioning valve group, prefill valve, Hydraulic Pump and fuel tank, it is characterized in that: described energy storage is connected with prefill valve by a circuit, described prefill valve is connected with Hydraulic Pump by a circuit, described prefill valve is connected with oil cylinder by another circuit, described fuel tank is connected with oil cylinder by a circuit, be connected with Hydraulic Pump by another circuit, described load-sensitive apportioning valve group is connected on the circuit between energy storage and prefill valve by circuit.
CN201310678105.8A 2013-12-13 2013-12-13 Hydraulic steering system Pending CN104709345A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310678105.8A CN104709345A (en) 2013-12-13 2013-12-13 Hydraulic steering system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310678105.8A CN104709345A (en) 2013-12-13 2013-12-13 Hydraulic steering system

Publications (1)

Publication Number Publication Date
CN104709345A true CN104709345A (en) 2015-06-17

Family

ID=53409196

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310678105.8A Pending CN104709345A (en) 2013-12-13 2013-12-13 Hydraulic steering system

Country Status (1)

Country Link
CN (1) CN104709345A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105235739A (en) * 2015-10-22 2016-01-13 湖北三江航天万山特种车辆有限公司 Semitrailer braking system with servo steering axle control

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030127275A1 (en) * 2002-01-10 2003-07-10 Rogers Clayton R. High efficiency automotive hydraulic power steering system
CN1702007A (en) * 2005-05-26 2005-11-30 江苏大学 Separated steering device for vehicular four wheels and its control method
US20090139223A1 (en) * 2007-11-30 2009-06-04 Ford Global Technologies, Llc Fuel efficient hydraulic power steering
CN202624350U (en) * 2012-04-05 2012-12-26 昆山晋桦豹胶轮车制造有限公司 Control system for correcting vehicle head and removing brake by pumping oil through hand pump
CN202686463U (en) * 2012-07-06 2013-01-23 徐州重型机械有限公司 Wheeled crane and electronic control steering hydraulic control system thereof
CN203698403U (en) * 2013-12-13 2014-07-09 明光市浩淼消防科技发展有限公司 Hydraulic steering system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030127275A1 (en) * 2002-01-10 2003-07-10 Rogers Clayton R. High efficiency automotive hydraulic power steering system
CN1702007A (en) * 2005-05-26 2005-11-30 江苏大学 Separated steering device for vehicular four wheels and its control method
US20090139223A1 (en) * 2007-11-30 2009-06-04 Ford Global Technologies, Llc Fuel efficient hydraulic power steering
CN202624350U (en) * 2012-04-05 2012-12-26 昆山晋桦豹胶轮车制造有限公司 Control system for correcting vehicle head and removing brake by pumping oil through hand pump
CN202686463U (en) * 2012-07-06 2013-01-23 徐州重型机械有限公司 Wheeled crane and electronic control steering hydraulic control system thereof
CN203698403U (en) * 2013-12-13 2014-07-09 明光市浩淼消防科技发展有限公司 Hydraulic steering system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105235739A (en) * 2015-10-22 2016-01-13 湖北三江航天万山特种车辆有限公司 Semitrailer braking system with servo steering axle control
CN105235739B (en) * 2015-10-22 2018-05-11 湖北三江航天万山特种车辆有限公司 A kind of semitrailer brake system with following steering axle control

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Legal Events

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C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150617