CN207535975U - A kind of mine car all hydraulic pressure steering-gear - Google Patents

A kind of mine car all hydraulic pressure steering-gear Download PDF

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Publication number
CN207535975U
CN207535975U CN201721659064.8U CN201721659064U CN207535975U CN 207535975 U CN207535975 U CN 207535975U CN 201721659064 U CN201721659064 U CN 201721659064U CN 207535975 U CN207535975 U CN 207535975U
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China
Prior art keywords
steering
pressure
oil
mouthfuls
control valve
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Active
Application number
CN201721659064.8U
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Chinese (zh)
Inventor
王德红
薛德森
么鸣宇
侯钦河
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Lingong Group Jinan Heavy Machine Co Ltd
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Lingong Group Jinan Heavy Machine Co Ltd
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Priority to CN201721659064.8U priority Critical patent/CN207535975U/en
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Abstract

A kind of mine car all hydraulic pressure steering-gear, including the hydraulic steering mechanism being located on vehicle frame, the hydraulic steering mechanism includes hydraulic oil container, hydraulic oil container is connected by oil circuit with steering pump, steering pump is connected by oil circuit with pressure-gradient control valve, and pressure-gradient control valve is connected by oil circuit with steering gear, and steering gear is connected by oil circuit with left steering cylinder and right steering cylinder respectively, steering gear is also connected by oil circuit with an oil return block, and oil return block is connected by oil circuit with hydraulic oil container.The structure design of the utility model is reasonable, steering pump passes through oil circuit connection hydraulic oil container and pressure-gradient control valve, pressure-gradient control valve connects steering gear and oil return block by hydraulic circuit, when steering wheel rotation, preferential Vavle switching oil circuit is to steering gear, with the speed that steering wheel rotates, pressure-gradient control valve provides suitable flow to steering gear, ensures that steering procedure is light;This system realizes first Application of all hydraulic pressure steering-gear on wide dumper, solves the problems, such as the high failure rate of conventional hydraulic servo steering system.

Description

A kind of mine car all hydraulic pressure steering-gear
Technical field:
The utility model is related to a kind of mine car all hydraulic pressure steering-gears.
Background technology:
The steering of quarry tipper is very crucial for the use of mine car, the safety concerning complete machine operation.Traditional ore deposit The steering of road dump truck is used for reference with dumper steering, is hydraulic power-assist steering system;But the system is not Quarry tipper operating environment is considered compared with very severe for highway, and the complete machine load of quarry tipper is also larger, leads Traditional hydraulic power-assist steering system high failure rate is caused, can not meet harsh working environment.The prior art to this not There is the plan of solution.
Utility model content:
The utility model in order to make up for the deficiencies of the prior art, provides a kind of mine car all hydraulic pressure steering-gear, it is tied Structure reasonable design, failure rate is low, and reliability is high, solves problems of the prior art.
Used technical solution is the utility model to solve above-mentioned technical problem:
A kind of mine car all hydraulic pressure steering-gear, including the hydraulic steering mechanism being located on vehicle frame, the fluid-link steering machine Structure includes hydraulic oil container, and hydraulic oil container is connected by oil circuit with steering pump, and steering pump is connected by oil circuit with pressure-gradient control valve, pressure-gradient control valve It is connected by oil circuit with steering gear, steering gear is connected by oil circuit with left steering cylinder and right steering cylinder respectively, and steering gear passes through oil Road is also connected with an oil return block, and oil return block is connected by oil circuit with hydraulic oil container.
Preferably, the steering gear is equipped with P mouthfuls of steering gear, T mouthfuls of steering gear, L mouthfuls of steering gear, R mouthfuls of steering gear, steering gear LS mouthfuls, P mouthfuls of pressure-gradient control valve, T mouthfuls of pressure-gradient control valve, LS mouthfuls of pressure-gradient control valve, CF mouthfuls of pressure-gradient control valve, EF mouthfuls of pressure-gradient control valve are provided on the pressure-gradient control valve, Steering pump inlet port and steering pump oil outlet are provided on the steering pump, hydraulic oil container oil suction is provided on the hydraulic oil container Mouthful and hydraulic oil container oil return opening, be provided with big chamber hydraulic fluid port and small chamber hydraulic fluid port on the left steering cylinder, also set on the right steering cylinder It is equipped with big chamber hydraulic fluid port and small chamber hydraulic fluid port;The hydraulic oil container inlet port of the hydraulic oil container by oil circuit connection steering pump inlet port, Steering pump oil outlet connects P mouthfuls of pressure-gradient control valve, and T mouthfuls of pressure-gradient control valve connects back to oil clot, LS mouthfuls of LS mouthfuls of steering gears of connection of pressure-gradient control valve, pressure-gradient control valve EF mouthfuls connect back to oil clot, CF mouthfuls of P mouthfuls of steering gears of connection of pressure-gradient control valve, and T mouthfuls of steering gear connects back to oil clot, and R mouthfuls of connections of steering gear are turned left The small chamber hydraulic fluid port of big chamber hydraulic fluid port and right steering cylinder to cylinder, the small chamber hydraulic fluid port and right steering cylinder of L mouthfuls of connection left steering cylinders of steering gear Big chamber hydraulic fluid port, oil return block passes through oil circuit connection hydraulic oil container oil return opening.
The utility model is using the above scheme, reasonable in design, and steering pump is by oil circuit connection hydraulic oil container and preferentially Valve, pressure-gradient control valve connects steering gear and oil return block by hydraulic circuit, when steering wheel rotation, preferential Vavle switching oil circuit to steering Device, with the speed that steering wheel rotates, pressure-gradient control valve provides suitable flow to steering gear, ensures that steering procedure is light;Steering gear Left and right steering cylinder and oil return block are connected by hydraulic circuit, when steering wheel rotation, hydraulic oil that steering gear distributes pressure-gradient control valve Left steering cylinder, right steering cylinder are transmitted to, bridge turns to before oil cylinder pushing steeraxle joint arm is realized;This system realizes hydro-steering system Application of the system on wide dumper, solves the problems, such as the high failure rate of conventional hydraulic servo steering system.
Description of the drawings:
Fig. 1 is the hydraulic schematic diagram of the utility model.
Fig. 2 is the structure diagram of the utility model.
Fig. 3 is the structure diagram of the utility model steering gear.
Fig. 4 is the structure diagram of the utility model left steering cylinder, right steering cylinder.
Fig. 5 is the structure diagram of the utility model pressure-gradient control valve.
Fig. 6 is the structure diagram of the utility model steering pump.
Fig. 7 is the structure diagram of the utility model hydraulic oil container.
In figure, 1, steering gear, 2, pressure-gradient control valve, 3, steering pump, 4, oil return block, 5, left steering cylinder, 6, hydraulic oil container, 7, vehicle Frame, 8, right steering cylinder, 9, preceding bridge, 10, R mouthfuls of steering gear, 11, P mouthfuls of steering gear, 12, L mouthfuls of steering gear, 13, T mouthfuls of steering gear, 14, LS mouthfuls of steering gear, 15, small chamber hydraulic fluid port, 16, big chamber hydraulic fluid port, 17, P mouthfuls of pressure-gradient control valve, 18, T mouthfuls of pressure-gradient control valve, 19, LS mouthfuls of pressure-gradient control valve, 20th, pressure-gradient control valve EF mouthfuls, 21, CF mouthfuls of pressure-gradient control valve, 22, steering pump oil outlet, 23, steering pump inlet port, 24, hydraulic oil container oil return Mouthful, 25, hydraulic oil container inlet port.
Specific embodiment:
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this reality It is described in detail with novel.
As shown in figs. 1-7, a kind of mine car all hydraulic pressure steering-gear, including the hydraulic steering mechanism being located on vehicle frame 7, institute State hydraulic steering mechanism and include hydraulic oil container 6, hydraulic oil container 6 is connected by oil circuit with steering pump 3, steering pump 3 by oil circuit and Pressure-gradient control valve 2 be connected, pressure-gradient control valve 2 is connected by oil circuit with steering gear 1, steering gear 1 by oil circuit respectively with left steering cylinder 5 and right-hand rotation It is connected to cylinder 6, steering gear 1 is also connected by oil circuit with an oil return block 4, and oil return block 4 is connected by oil circuit with hydraulic oil container 6.
The steering gear is equipped with steering gear P mouths 11, steering gear T mouths 13, steering gear L mouths 12, steering gear R mouths 10, turns to Device LS mouths 14 are provided with pressure-gradient control valve P mouths 17, pressure-gradient control valve T mouths 1818, pressure-gradient control valve LS mouths 19, CF mouthfuls of pressure-gradient control valve on the pressure-gradient control valve 21st, pressure-gradient control valve EF mouths 20 are provided with steering pump inlet port 23 and steering pump oil outlet 22, the hydraulic oil container on the steering pump On be provided with hydraulic oil container inlet port 25 and hydraulic oil container oil return opening 24, big chamber hydraulic fluid port 16 and small is provided on the left steering cylinder Chamber hydraulic fluid port 15 is also equipped with big chamber hydraulic fluid port 16 and small chamber hydraulic fluid port 15 on the right steering cylinder;The hydraulic oil container of the hydraulic oil container Inlet port 25 connects pressure-gradient control valve P mouths 17, T mouthfuls of pressure-gradient control valve by oil circuit connection steering pump inlet port 23, steering pump oil outlet 22 1818 connect back to oil clot, and pressure-gradient control valve LS mouths 19 connect steering gear LS mouths 14, and pressure-gradient control valve EF mouths 20 connect back to oil clot, CF mouthfuls of pressure-gradient control valve 21 connection steering gear P mouths 11, steering gear T mouths 13 connect back to oil clot, and steering gear R mouths 10 connect big 16 He of chamber hydraulic fluid port of left steering cylinder The small chamber hydraulic fluid port 15 of right steering cylinder, steering gear L mouths 12 connect the small chamber hydraulic fluid port 15 of left steering cylinder and the big chamber hydraulic fluid port of right steering cylinder 16, oil return block passes through oil circuit connection hydraulic oil container oil return opening 24.
During right turn, fluid is diverted to be pumped out hydraulic fluid port 22 and reaches pressure-gradient control valve P mouths 17, according to the difference of turning velocity, preferentially Valve 2 can distribute corresponding hydraulic oil to steering gear P mouths 11 by pressure-gradient control valve CF mouths 21, and hydraulic oil is arrived using steering gear R mouths 10 Up to the big chamber hydraulic fluid port 16 of left steering cylinder 5 and the small chamber hydraulic fluid port 15 of right steering cylinder 8, the knuckle arm rotation of bridge 9, realizes and turns before promotion To, meanwhile, the small chamber fluid of left steering cylinder 5 passes through big chamber hydraulic fluid port 16 by the big chamber fluid of small chamber hydraulic fluid port 15 and right steering cylinder 8 Steering gear L mouths 12 are reached, oil return block 4 is reached using steering gear T mouths 13, is eventually returned to hydraulic oil container oil return opening 24;Left steering When, steering gear L mouths 12 are fuel-displaced, 10 oil return of steering gear R mouths, opposite with right-hand rotation;When not turning to, fluid is arrived by pressure-gradient control valve EF mouths 20 Oil return block 4 eventually arrives at hydraulic oil container oil return opening 24.
Above-mentioned specific embodiment cannot function as the limitation to scope of protection of the utility model, for the skill of the art For art personnel, any alternate modification or transformation made to the utility model embodiment all fall within the guarantor of the utility model In the range of shield.
Part is not described in detail for the utility model, is the known technology of those skilled in the art of the present technique.

Claims (2)

1. a kind of mine car all hydraulic pressure steering-gear, it is characterised in that:Including the hydraulic steering mechanism being located on vehicle frame, the liquid Steering mechanism is pressed to include hydraulic oil container, hydraulic oil container is connected by oil circuit with steering pump, and steering pump passes through oil circuit and pressure-gradient control valve phase Even, pressure-gradient control valve is connected by oil circuit with steering gear, and steering gear is connected by oil circuit with left steering cylinder and right steering cylinder respectively, is turned to Device is also connected by oil circuit with an oil return block, and oil return block is connected by oil circuit with hydraulic oil container.
2. a kind of mine car all hydraulic pressure steering-gear according to claim 1, it is characterised in that:The steering gear is equipped with P mouthfuls of steering gear, T mouthfuls of steering gear, L mouthfuls of steering gear, R mouthfuls of steering gear, LS mouthfuls of steering gear are provided with pressure-gradient control valve P on the pressure-gradient control valve Mouth, T mouthfuls of pressure-gradient control valve, LS mouthfuls of pressure-gradient control valve, CF mouthfuls of pressure-gradient control valve, EF mouthfuls of pressure-gradient control valve are provided with steering pump inlet port on the steering pump With steering pump oil outlet, hydraulic oil container inlet port and hydraulic oil container oil return opening, the left steering are provided on the hydraulic oil container Big chamber hydraulic fluid port and small chamber hydraulic fluid port are provided on cylinder, big chamber hydraulic fluid port and small chamber hydraulic fluid port are also equipped on the right steering cylinder;The liquid The hydraulic oil container inlet port of pressure oil case connects P mouthfuls of pressure-gradient control valve by oil circuit connection steering pump inlet port, steering pump oil outlet, preferentially T mouthfuls of valve connects back to oil clot, LS mouthfuls of LS mouthfuls of steering gears of connection of pressure-gradient control valve, and EF mouthfuls of pressure-gradient control valve connects back to oil clot, CF mouthfuls of connections of pressure-gradient control valve P mouthfuls of steering gear, T mouthfuls of steering gear connect back to oil clot, the big chamber hydraulic fluid port of R mouthfuls of connection left steering cylinders of steering gear and the small chamber of right steering cylinder Hydraulic fluid port, the small chamber hydraulic fluid port of L mouthfuls of connection left steering cylinders of steering gear and the big chamber hydraulic fluid port of right steering cylinder, oil return block pass through oil circuit connection liquid Pressure oil tank drainback mouth.
CN201721659064.8U 2017-12-01 2017-12-01 A kind of mine car all hydraulic pressure steering-gear Active CN207535975U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721659064.8U CN207535975U (en) 2017-12-01 2017-12-01 A kind of mine car all hydraulic pressure steering-gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721659064.8U CN207535975U (en) 2017-12-01 2017-12-01 A kind of mine car all hydraulic pressure steering-gear

Publications (1)

Publication Number Publication Date
CN207535975U true CN207535975U (en) 2018-06-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721659064.8U Active CN207535975U (en) 2017-12-01 2017-12-01 A kind of mine car all hydraulic pressure steering-gear

Country Status (1)

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CN (1) CN207535975U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111549851A (en) * 2020-05-15 2020-08-18 三一重机有限公司 Hydraulic safety system and tire type excavator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111549851A (en) * 2020-05-15 2020-08-18 三一重机有限公司 Hydraulic safety system and tire type excavator

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