CN102363432A - Steering control device for electric wheel mining dump trucks - Google Patents
Steering control device for electric wheel mining dump trucks Download PDFInfo
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- CN102363432A CN102363432A CN2011101819098A CN201110181909A CN102363432A CN 102363432 A CN102363432 A CN 102363432A CN 2011101819098 A CN2011101819098 A CN 2011101819098A CN 201110181909 A CN201110181909 A CN 201110181909A CN 102363432 A CN102363432 A CN 102363432A
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- braking
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Abstract
The invention discloses a steering control device for electric wheel mining dump trucks, which belongs to the technical field of steering control system application. The steering control system comprises a steering control system body, which comprises a sucked oil filter, a constant-pressure variable plunger pump, a high-pressure filter, a return oil filter, an integrated steering brake block, steering energy accumulators, a small-displacement steering gear, a steering flow amplifier and double-acting steering cylinders, the constant-pressure variable plunger pump is respectively connected with an oil source and the integrated steering brake block through the sucked oil filter and the high-pressure filter, the return oil filter is directly connected with the integrated steering brake block, the integrated steering brake block is respectively connected with the steering energy accumulators, the small-displacement steering gear and the steering flow amplifier through oil passages, and the steering flow amplifier is connected with the double-acting steering cylinders through oil passages. The steering control system has the beneficial effects that: the structure is simple, the size is small, the weight is light, and the steering control system is quick and convenient to mount and repair and handy to control, is safe and reliable, and brings more convenience to driving.
Description
Technical field
The present invention relates to a kind of steering control system, specifically is a kind of electric drive wheel quarry tipper steering controlling device, belongs to the steering control system applied technical field.
Background technology
At present the electric power wheel self-discharging vehicle steering control system generally adopts fix-displacement pump and unloading overflow valve fuel feeding, and fix-displacement pump generally adopts gear type pump or blade-type pump, and price is lower, but degradation of energy is bigger during system unloaded, and the fault rate of unloading overflow valve is higher.The loop that also has the part quarry tipper to adopt load sensing convertible valve and pressure-gradient control valve to combine; Realized the function that steering flow is stable to a certain extent; Make turning efficiency more steadily reliable, but the pump that use in these loops is a fix-displacement pump, can not flow be provided according to the needs of load; Always there is the part flow to get back to fuel tank, the emergent power loss through the mode of overflow.
Because electric power wheel self-discharging vehicle belongs to transit vehicle, turn to very frequently, most of electric power wheel self-discharging vehicle adopts the deflector of big discharge capacity, and its volume and weight is bigger, mechanically installs inconveniently in walking, and actuating force is bigger, the chaufeur easy fatigue.
Summary of the invention
Problem to above-mentioned prior art existence; The present invention provides a kind of electric drive wheel quarry tipper steering controlling device; Specifically be a kind of electric power wheel self-discharging vehicle hydro-steering control system that is combined by constant-pressure variable plunger pump fuel feeding, the deflector of float amount and flux amplification valve, this system operation power is little, easy and flexible; Loss of pressure is little, steering control system main body flexible arrangement.
To achieve these goals; The present invention realizes through following technical scheme: a kind of electric drive wheel quarry tipper steering controlling device; Comprise the steering control system main body, the steering control system main body by oil suction filter, constant-pressure variable plunger pump, high pressure filter, return filter, braking in a turn integrated package, turn to energy storage, the deflector of float amount, steering flow amplifier and double acting to turn to oil cylinder to constitute; The constant-pressure variable plunger pump is connected return filter with oil sources through the oil suction filter respectively with high pressure filter and directly is connected with the braking in a turn integrated package with the braking in a turn integrated package; The braking in a turn integrated package is connected with the steering flow amplifier with turning to energy storage, the deflector of float amount respectively through oil circuit, and the steering flow amplifier turns to oil cylinder to be connected through oil circuit and double acting.
The braking in a turn integrated package is by braking in a turn valve piece, check valve I, safety valve, unloader valve, interflow valve, electromagnetic switch valve, solenoid directional control valve, check valve II and flow regulating valve is integrated forms; Valve member in the braking in a turn integrated package is screw-in cartridge valve; Be integrated on the valve piece; The steering flow amplifier is made up of load sensing pressure-gradient control valve, flux amplification valve, directional control valve and cushion valve; The hydraulic fluid port LS of the load sensing pressure-gradient control valve in the hydraulic fluid port LS in the deflector of float amount and the described steering flow amplifier is connected, and the hydraulic fluid port EF in the steering flow amplifier is connected with other oil circuits.
Principle of work of the present invention is: the constant-pressure variable plunger pump is steering control system main body, hoisting system and brake system fuel feeding through the braking in a turn integrated package; Utilize constant-pressure variable plunger pump fuel feeding; Make to turn to the fluctuation of pressure scope of energy storage little, help prolonging the service life that turns to energy storage.
Turn to energy storage to communicate with pressure oil all the time; Pressure oil links to each other with the steering control system main body of the steering flow amplifier of float amount deflector control simultaneously; The steering flow amplifier is made up of load sensing pressure-gradient control valve, flux amplification valve, directional control valve and cushion valve; The load sensing pressure-gradient control valve guarantees that the steering control system main body has stable flow rate; Guarantee that the flow of supply float amount deflector equals the product of bearing circle rotating speed and float amount deflector discharge capacity all the time; The steering flow amplifier guarantees that the flow through flow-controlling gate is the fixedly multiple of float amount deflector flow, thereby the velocity of rotation that realizes supplying with the flow that turns to oil cylinder and the deflector of float amount is proportional.
Pressure-gradient control valve has good pressure compensation to load variations, realizes turning to loop and other loops to be independent of each other, and preferential supply of main flow turns to the loop; When the steering control system main body is failure to actuate; Supply with the lifting loop with other pumps interflow, turn to the energy storage can also be as Emergency Power Supply, when the steering pump fault; Be steering control system main body fuel feeding, the safety that has improved steering control system.
The invention has the beneficial effects as follows: simple structure, volume is little, in light weight, and installation and maintenance are quick and easy, handle lightly, and safe and reliable being convenient to more driven.
Description of drawings
Fig. 1 is a systematic schematic diagram of the present invention;
Fig. 2 is a braking in a turn integrated package schematic diagram of the present invention.
Among the figure: 1, oil suction filter, 2, the constant-pressure variable plunger pump, 3, high pressure filter, 4, return filter, 5, the braking in a turn integrated package; 5.1, braking in a turn valve piece, 5.2, the check valve I, 5.3, safety valve, 5.4, unloader valve; 5.5, the interflow valve, 5.6, electromagnetic switch valve, 5.7, solenoid directional control valve, 5.8, the check valve II; 5.9, flow regulating valve, 6, turn to energy storage, 7, the deflector of float amount, 8, flow amplifier; 9, turn to oil cylinder, 10, hoisting system, 11, brake system, 12, the steering control system main body.
The specific embodiment
To combine accompanying drawing that the present invention is further specified below.
As depicted in figs. 1 and 2; A kind of electric drive wheel quarry tipper steering controlling device; Comprise steering control system main body 12, steering control system main body 12 by oil suction filter 1, constant-pressure variable plunger pump 2, high pressure filter 3, return filter 4, braking in a turn integrated package 5, turn to energy storage 6, float amount deflector 7, steering flow amplifier 8 and double acting to turn to oil cylinder 9 to constitute; Constant-pressure variable plunger pump 2 is connected with braking in a turn integrated package 5 with oil sources respectively with high pressure filter 3 through oil suction filter 1; Return filter 4 directly is connected with braking in a turn integrated package 5; Braking in a turn integrated package 5 is connected with steering flow amplifier 8 with turning to energy storage 6, float amount deflector 7 respectively through oil circuit, and steering flow amplifier 8 turns to oil cylinder 9 to be connected through oil circuit and double acting.
Braking in a turn integrated package 5 is by braking in a turn valve piece 5.1, check valve I 5.2, safety valve 5.3, unloader valve 5.4, interflow valve 5.5, electromagnetic switch valve 5.6, solenoid directional control valve 5.7, check valve II 5.8 and flow regulating valve 5.9 integrated forming; Valve member in the braking in a turn integrated package 5 is screw-in cartridge valve; Be integrated on the valve piece; Steering flow amplifier 8 is made up of load sensing pressure-gradient control valve, flux amplification valve, directional control valve and cushion valve; The hydraulic fluid port LS of the load sensing pressure-gradient control valve in the hydraulic fluid port LS in the float amount deflector 7 and the described steering flow amplifier 8 is connected, and the hydraulic fluid port EF in the steering flow amplifier 8 is connected with other oil circuits.
Working process of the present invention is: the oil suction of constant-pressure variable plunger pump 2 is communicated with oil suction filter 1; Oil outlet is connected through high pressure filter 3 and braking in a turn integrated package 5; Give braking in a turn system body 12 fuel feeding through check valve 5.2; Simultaneously for turning to energy storage 6 oil-filled, the effect of unloader valve 5.4 is for turning to the energy storage release, and 5.4 pairs of braking in a turn system bodies 12 of safety valve shield; Interflow valve 5.5, electromagnetic switch valve 5.6, solenoid directional control valve 5.7, check valve 5.8, flow regulating valve 5.9 are the relevant valve member of hoisting system 10 and brake system 11; Turn to energy storage 6 to can be used as Emergency Power Supply, when the steering pump fault, be steering control system main body 12 fuel feeding; Improved the safety of steering control system; Constant-pressure variable plunger pump 2 fuel feeding turn to the fluctuation of pressure scope of energy storage 6 little, help prolonging the service life that turns to energy storage 6.
Float amount deflector 7, steering flow amplifier 8, turn to oil cylinder 9 to constitute the control and the operating part of braking in a turn system bodies 12; The output of float amount deflector 7 control steering flow amplifiers 8; Realization turns to; Steering flow amplifier 8 is made up of load sensing pressure-gradient control valve, flux amplification valve, directional control valve and cushion valve; The load sensing pressure-gradient control valve guarantees that braking in a turn system body 12 has stable flow rate; Flow that guarantee to supply with float amount deflector 7 equals the product of bearing circle rotating speed and float amount deflector discharge capacity 7 all the time, and steering flow amplifier 8 guarantees that the flow through flow-controlling gate is the fixedly multiple of float amount deflector 7 flows, thereby realizes that supply turns to the velocity of rotation of flow and float amount deflector 7 of oil cylinder 9 proportional.Pressure-gradient control valve has good pressure compensation to load variations, realizes turning to loop and other loops to be independent of each other, and preferential supply of main flow turns to the loop, when braking in a turn system body 12 is failure to actuate, supplies with the lifting loop with other pump interflow.
Claims (3)
1. electric drive wheel quarry tipper steering controlling device; Comprise steering control system main body (12); It is characterized in that, steering control system main body (12) by oil suction filter (1), constant-pressure variable plunger pump (2), high pressure filter (3), return filter (4), braking in a turn integrated package (5), turn to energy storage (6), float amount deflector (7), steering flow amplifier (8) and double acting to turn to oil cylinder (9) to constitute; Constant-pressure variable plunger pump (2) is connected with braking in a turn integrated package (5) with oil sources respectively with high pressure filter (3) through oil suction filter (1); Return filter (4) directly is connected with braking in a turn integrated package (5); Braking in a turn integrated package (5) is connected with turning to energy storage (6), float amount deflector (7) and steering flow amplifier (8) respectively through oil circuit, and steering flow amplifier (8) turns to oil cylinder (9) to be connected through oil circuit and double acting.
2. a kind of electric drive wheel quarry tipper steering controlling device according to claim 1; It is characterized in that described braking in a turn integrated package (5) is by braking in a turn valve piece (5.1), check valve I (5.2), safety valve (5.3), unloader valve (5.4), interflow valve (5.5), electromagnetic switch valve (5.6), solenoid directional control valve (5.7), check valve II (5.8) and integrated the forming of flow regulating valve (5.9).
3. a kind of electric drive wheel quarry tipper steering controlling device according to claim 1 and 2 is characterized in that the valve member in the described braking in a turn integrated package (5) is screw-in cartridge valve, is integrated on the valve piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101819098A CN102363432A (en) | 2011-06-30 | 2011-06-30 | Steering control device for electric wheel mining dump trucks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101819098A CN102363432A (en) | 2011-06-30 | 2011-06-30 | Steering control device for electric wheel mining dump trucks |
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| CN102363432A true CN102363432A (en) | 2012-02-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101819098A Pending CN102363432A (en) | 2011-06-30 | 2011-06-30 | Steering control device for electric wheel mining dump trucks |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815335A (en) * | 2012-09-06 | 2012-12-12 | 三一矿机有限公司 | Steering and braking integrated control system and mineral dumper |
| CN103085865A (en) * | 2012-11-30 | 2013-05-08 | 广西柳工机械股份有限公司 | Load sensitive turning hydraulic system of loading machine |
| CN103144624A (en) * | 2013-03-11 | 2013-06-12 | 西安航空制动科技有限公司 | Brake control valve of airplane |
| CN103522929A (en) * | 2013-10-22 | 2014-01-22 | 广西柳工机械股份有限公司 | Fixed delivery and variable delivery hydraulic system of mining dump truck |
| CN103738396A (en) * | 2013-12-27 | 2014-04-23 | 三一汽车起重机械有限公司 | Constant flow steering system and engineering machinery |
| CN104015718A (en) * | 2014-01-23 | 2014-09-03 | 广西柳工机械股份有限公司 | Displacement compensator |
| CN104385966A (en) * | 2014-11-19 | 2015-03-04 | 赵永胜 | Hydraulic lifting control system of dumper |
| CN105691447A (en) * | 2016-02-01 | 2016-06-22 | 徐州徐工挖掘机械有限公司 | Full-hydraulic steering system for large-tonnage mining dump vehicle |
| CN106364552A (en) * | 2016-08-30 | 2017-02-01 | 广州电力机车有限公司 | Hydraulic system for six-wheel drive dumper |
| CN109253118A (en) * | 2018-10-29 | 2019-01-22 | 北京航天发射技术研究所 | A kind of automatic switchover constant pressure oil source device based on pressure judgement |
| CN106274605B (en) * | 2016-08-18 | 2019-02-19 | 广西柳工机械股份有限公司 | Quarry tipper load-sensitive combining hydraulic system |
| CN110816651A (en) * | 2019-11-07 | 2020-02-21 | 广州电力机车有限公司 | Control method of mining car electro-hydraulic system |
| CN111976830A (en) * | 2020-08-27 | 2020-11-24 | 中国煤炭科工集团太原研究院有限公司 | Preferentially steering double-loop braking quantitative open system for mining vehicle |
| CN113928413A (en) * | 2021-11-29 | 2022-01-14 | 广州电力机车有限公司 | 60T pure electric mine watering lorry hydraulic system |
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| CN201882141U (en) * | 2010-12-13 | 2011-06-29 | 湘电重型装备股份有限公司 | Steering hydraulic integrated system of electric-wheel dump car |
| CN202163483U (en) * | 2011-06-30 | 2012-03-14 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Steering control device for mining dumper with electric wheels |
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| JPH04173478A (en) * | 1990-11-08 | 1992-06-22 | Hitachi Constr Mach Co Ltd | Hydraulic drive unit for working vehicle |
| US5117935A (en) * | 1990-12-21 | 1992-06-02 | Caterpillar Inc. | Load sensing hydrostatic steering system |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815335A (en) * | 2012-09-06 | 2012-12-12 | 三一矿机有限公司 | Steering and braking integrated control system and mineral dumper |
| CN102815335B (en) * | 2012-09-06 | 2015-06-10 | 三一矿机有限公司 | Steering and braking integrated control system and mineral dumper |
| CN103085865A (en) * | 2012-11-30 | 2013-05-08 | 广西柳工机械股份有限公司 | Load sensitive turning hydraulic system of loading machine |
| CN103085865B (en) * | 2012-11-30 | 2016-05-25 | 广西柳工机械股份有限公司 | Loader load sensitization steering hydraulic system |
| CN103144624A (en) * | 2013-03-11 | 2013-06-12 | 西安航空制动科技有限公司 | Brake control valve of airplane |
| CN103144624B (en) * | 2013-03-11 | 2015-05-13 | 西安航空制动科技有限公司 | Brake control valve of airplane |
| CN103522929B (en) * | 2013-10-22 | 2016-04-06 | 广西柳工机械股份有限公司 | Quarry tipper determines variable delivery hydraulic system |
| CN103522929A (en) * | 2013-10-22 | 2014-01-22 | 广西柳工机械股份有限公司 | Fixed delivery and variable delivery hydraulic system of mining dump truck |
| CN103738396A (en) * | 2013-12-27 | 2014-04-23 | 三一汽车起重机械有限公司 | Constant flow steering system and engineering machinery |
| CN104015718B (en) * | 2014-01-23 | 2016-04-20 | 广西柳工机械股份有限公司 | Discharge capacity compensator |
| CN104015718A (en) * | 2014-01-23 | 2014-09-03 | 广西柳工机械股份有限公司 | Displacement compensator |
| CN104385966A (en) * | 2014-11-19 | 2015-03-04 | 赵永胜 | Hydraulic lifting control system of dumper |
| CN105691447A (en) * | 2016-02-01 | 2016-06-22 | 徐州徐工挖掘机械有限公司 | Full-hydraulic steering system for large-tonnage mining dump vehicle |
| CN105691447B (en) * | 2016-02-01 | 2017-11-28 | 徐州徐工挖掘机械有限公司 | A kind of large-tonnage quarry tipper all hydraulic pressure steering-gear |
| CN106274605B (en) * | 2016-08-18 | 2019-02-19 | 广西柳工机械股份有限公司 | Quarry tipper load-sensitive combining hydraulic system |
| CN106364552A (en) * | 2016-08-30 | 2017-02-01 | 广州电力机车有限公司 | Hydraulic system for six-wheel drive dumper |
| CN109253118A (en) * | 2018-10-29 | 2019-01-22 | 北京航天发射技术研究所 | A kind of automatic switchover constant pressure oil source device based on pressure judgement |
| CN110816651A (en) * | 2019-11-07 | 2020-02-21 | 广州电力机车有限公司 | Control method of mining car electro-hydraulic system |
| CN111976830A (en) * | 2020-08-27 | 2020-11-24 | 中国煤炭科工集团太原研究院有限公司 | Preferentially steering double-loop braking quantitative open system for mining vehicle |
| CN113928413A (en) * | 2021-11-29 | 2022-01-14 | 广州电力机车有限公司 | 60T pure electric mine watering lorry hydraulic system |
| CN113928413B (en) * | 2021-11-29 | 2023-06-09 | 广州电力机车有限公司 | 60T pure electric mine watering lorry hydraulic system |
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Application publication date: 20120229 |