CN207433625U - A kind of off-highway machine driving wide dumper all hydraulic pressure steering-gear - Google Patents
A kind of off-highway machine driving wide dumper all hydraulic pressure steering-gear Download PDFInfo
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- CN207433625U CN207433625U CN201820205622.1U CN201820205622U CN207433625U CN 207433625 U CN207433625 U CN 207433625U CN 201820205622 U CN201820205622 U CN 201820205622U CN 207433625 U CN207433625 U CN 207433625U
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Abstract
The utility model discloses a kind of off-highway machine driving wide dumper all hydraulic pressure steering-gear, including steering gear pump, turn to valve group, steering buffering valve group, steering accumulator, oil absorption filter, high pressure filter, steering gear, steering cylinder and hydraulic oil container, bridge is turned on T-shaped arm before left steering power-assisted oil cylinder, right turn power-assisted oil cylinder act on vehicle, and whole system is made to turn to the good controllable, portable and stable of power output；Uniform high speed steering can be realized by installing steering accumulator additional, and power source can be provided in the case where running out of steam, and realize emergency；Steering gear pump uses quantitative gear pump, can reduce integral vehicle cost.
Description
Technical field
The utility model belongs to the off-highway machine driving wide dumper steering technical field of engineering machinery, specifically
Say it is to be related to a kind of off-highway machine driving wide dumper all hydraulic pressure steering-gear.
Background technology
Due in mine development, removing the demand of transport improved efficiency, off-highway machine driving wide dumper
Develop to large-tonnage.It, will to entire steering while bringing the bearing capacity to improve but as car body lengthens, widens
The steering force for asking offer is increasing.And mine road is mostly to need frequently to turn in sinuous hill path heavy duty traveling, causes to turn
To each parts of system often in limit load or excess load job state, this results in each parts event of steering
Barrier rate greatly increases, and limits the normal use of vehicle.
Current off-highway machine driving wide dumper steering, it is most to use mechanical-hydraulic servo steering system,
But from the point of view of the development with reference to domestic steering gear technology, the ball-and-nut steering gear of current 130 cylinder diameter has been that institute can be mating
Maximum cylinder diameter steering gear, and big breakthrough may not be obtained in the short time, so being badly in need of finding a kind of new steering system
System improves the stability of full-vehicle steering system.
Utility model content
The purpose of this utility model is exactly for the above-mentioned market demand and technology requirement, provides a kind of off-highway machine driving
Wide dumper all hydraulic pressure steering-gear, this method promote full-vehicle steering system based on reduction driver's labor intensity is realized
Quality ensures the rate of attendance of vehicle.
The purpose of this utility model can be realized by following technique measures：
A kind of off-highway machine driving wide dumper all hydraulic pressure steering-gear, including steering gear pump, steering gear pump
Inlet port be connected to hydraulic oil container by oil absorption filter, the outlet of steering gear pump is connected to steering by high pressure filter
The P mouths of valve group, turn to the AC1 mouths of valve group, AC2 mouthfuls be connected respectively in the oil outlet of two steering accumulators, turn to valve group
T mouths return hydraulic oil container, turn to the P1 mouths of valve group, T1 mouthfuls be connected respectively the P mouths in steering gear, T mouthfuls, the R mouths of steering gear,
L mouthfuls respectively connection turn to buffering valve group R mouths, L mouthful, steering buffer valve group R1 mouths, L1 mouthfuls connect steering cylinder respectively
Oil inlet, oil return opening, turn to buffering valve group T mouths be connected to steering valve group 2 T2 mouths.
Steering cylinder includes left steering power-assisted oil cylinder and right turn power-assisted oil cylinder, and the R1 mouths for turning to buffering valve group separate
Two branches are simultaneously respectively connected to the rod chamber of left steering power-assisted oil cylinder and the rodless cavity of right turn power-assisted oil cylinder, turn to trimmer valve
The L1 mouths of group, which separate two branches and are respectively connected to the rodless cavity of left steering power-assisted oil cylinder and right turn power-assisted oil cylinder, bar
Chamber.
Left steering power-assisted oil cylinder and right turn power-assisted oil cylinder are arranged on before vehicle on the T-shaped arm of bridge.
The steering accumulator is capsule-type accumulator.
The steering gear is load-transducing type of priority steering gear.
The steering gear pump is quantitative gear pump.
It turns to valve group and turns to and be both provided with pressure tap in buffering valve group.
The beneficial effects of the utility model are as follows：A kind of off-highway machine driving wide dumper provided by the utility model
All hydraulic pressure steering-gear, bridge is turned on T-shaped arm before acting on vehicle by steering cylinder, and whole system is made to turn to power output
Good controllable, portable and stable, can reduce driver's labor intensity, ensure the rate of attendance of vehicle.Accumulator is turned to turn to be entire
The uniform and stable operation of system provides back-up power source, in power source catastrophic failure, serves as emergent steering power source and ensures vehicle
It can be with safety stop in roadside.
Description of the drawings
Fig. 1 is the schematic diagram of all hydraulic pressure steering-gear of the utility model.
In figure：1. steering gear pump, 2. turn to valve group, and 3. turn to buffering valve group, and 4. turn to accumulator, 5. oil suctions
Filter, 6. high pressure filters, 7. steering gears, 8. steering cylinders, 81. left steering power-assisted oil cylinders, 82. right turns
Power-assisted oil cylinder, 9. hydraulic oil containers.
Specific embodiment
The utility model is further described below with reference to embodiment：
As shown in Figure 1, a kind of off-highway machine driving wide dumper all hydraulic pressure steering-gear of the utility model, turns to
Gear pump 1, turn to valve group 2, turn to buffering valve group 3, turn to accumulator 4, oil absorption filter 5, high pressure filter 6, steering gear 7,
Steering cylinder 8 and hydraulic oil container 9, the inlet port of steering gear pump 1 are connected to hydraulic oil container 9 by oil absorption filter 5, turn
Outlet to gear pump 1 is connected to the P mouths for turning to valve group 2, the AC1 mouths of steering valve group 2, AC2 mouthfuls of difference by high pressure filter 6
It is correspondingly connected to the oil outlet of two steering accumulators 4, T mouths for turning to valve group 2 returns hydraulic oil container 9, the P1 mouths of steering valve group 2,
T1 mouthfuls be connected respectively the P mouths in steering gear 7, T mouthfuls, the R mouths of steering gear 7, L mouthfuls respectively connection turn to buffering valve group 3 R
Mouthful, L mouthful, turn to buffering valve group 3 R1 mouths, L1 mouthful respectively connection steering cylinder 8 oil inlet, oil return openings, steering buffer
The T mouths of valve group 3 are connected to the T2 mouths for turning to valve group 2, turn to the hydraulic oil of buffering valve group 3 and can return hydraulic oil by turning to valve group 2
Case.
It turns to accumulator 4 and provides back-up power source for the uniform and stable operation of entire steering, in power source event suddenly
During barrier, serve as emergent steering power source and ensure that vehicle can be with safety stop in roadside.Steering gear pump uses quantitative gear pump, can
Reduce integral vehicle cost.
It turns to and is also set up in valve group 2 there are three pressure tap, label is respectively M0, M1, M2.It turns to and is also set in buffering valve group 3
It puts there are two pressure tap, label is respectively M1, M2.Pressure tap is used to measuring the pressure of fluid pressure line, hydraulic port and pressure during pressure measurement
Power table connects.
The operation principle of the utility model is as follows：
When the engine starts, the hydraulic oil in hydraulic oil container 9 enters steering gear pump 1 after oil absorption filter 5, then
By high pressure filter 6 into the P mouths for turning to valve group 2, valve group 2 is turned at this time preferentially to two 4 filling liquids of steering accumulator, makes to turn
It is in accumulator 4 and fills energy state, when turning to accumulator 4 full of fluid, high pressure oil returns hydraulic pressure by turning to the T mouths of valve group 2
Fuel tank 9.
When driver's steering wheel rotation turns left and either turns right, steering gear 7 can be with left-hand rotation or right-hand rotation together, high-pressure oil passage
By oil absorption filter 5, steering gear pump 1, high pressure filter 6 into the P mouths for turning to valve group 2, then the P1 mouths from steering valve group 2
Into the P mouths of steering gear 7, the R mouths of diverted device 7 or L mouthfuls of entrance turn to buffering valve group 3, the steering trimmer valve eventually passed through
Group 3 R1 mouths or L1 mouthfuls be applied to steering cylinder 8 respectively.Specifically, when steering wheel turns left, hydraulic oil is by turning to
The R1 mouths of buffering valve group 3 are applied to the rod chamber of left steering power-assisted oil cylinder 81 and the rodless cavity of right turn power-assisted oil cylinder 82 respectively,
Realize left steering；When steering wheel is turned right, hydraulic oil is applied to left steering power-assisted oil cylinder respectively by turning to the L1 mouths of buffering valve group 3
81 rodless cavity and the rod chamber of right turn power-assisted oil cylinder 82 realize right turn.
When 1 failure of steering gear pump can not normal fuel injection when or its fluid provided can not meet suddenly increased turn
During to power, the fluid being stored in accumulator 4 can supplement fluid to whole system in time by turning to valve group, realize steering
Uniform high speed steering and emergency is realized in the case where running out of steam.
The utility model, using all hydraulic pressure steering-gear, substitutes now universal on off-highway machine driving wide dumper
The mechanical-hydraulic servo steering system used realizes light and flexible, uniform high speed steering；It is simple in structure, it is easy for installation, it can provide
Larger steering force than existing machinery hydraulic power-assist steering system, operates light, dependable performance, can be that large-tonnage is off-highway
Machine driving wide dumper is developed, and provides more preferably steering solution；The labor intensity of driver is greatly reduced, is carried
The stability of entire steering is risen, and then promotes the rate of attendance of vehicle.
Claims (7)
1. a kind of off-highway machine driving wide dumper all hydraulic pressure steering-gear, which is characterized in that including steering gear pump
（1）, steering gear pump（1）Inlet port pass through oil absorption filter（5）It is connected to hydraulic oil container（9）, steering gear pump（1）Go out
Mouth passes through high pressure filter（6）It is connected to steering valve group（2）P mouths, turn to valve group（2）AC1 mouths, AC2 mouthfuls corresponding respectively connect
It is connected to two steering accumulators（4）Oil outlet, turn to valve group（2）T mouths return hydraulic oil container（9）, turn to valve group（2）P1
Mouthful, T1 mouthfuls be connected respectively in steering gear（7）P mouths, T mouthfuls, steering gear（7）R mouths, L mouthfuls respectively connection turn to trimmer valve
Group（3）R mouths, L mouthfuls, turn to buffering valve group（3）R1 mouths, L1 mouthfuls connect steering cylinder respectively（8）Oil inlet, oil return
Mouthful, turn to buffering valve group（3）T mouths be connected to steering valve group（2）T2 mouths.
2. off-highway machine driving wide dumper all hydraulic pressure steering-gear according to claim 1, which is characterized in that turn
To power-assisted oil cylinder（8）Including left steering power-assisted oil cylinder（81）With right turn power-assisted oil cylinder（82）, turn to buffering valve group（3）R1 mouths
It separates two branches and is respectively connected to left steering power-assisted oil cylinder（81）Rod chamber and right turn power-assisted oil cylinder（82）Without bar
Chamber turns to buffering valve group（3）L1 mouths separate two branches and be respectively connected to left steering power-assisted oil cylinder（81）Rodless cavity and
Right turn power-assisted oil cylinder（82）Rod chamber.
3. off-highway machine driving wide dumper all hydraulic pressure steering-gear according to claim 2, which is characterized in that left
Steering cylinder（81）With right turn power-assisted oil cylinder（82）It is arranged on before vehicle on the T-shaped arm of bridge.
4. off-highway machine driving wide dumper all hydraulic pressure steering-gear according to claim 1, which is characterized in that institute
The steering accumulator stated（4）For capsule-type accumulator.
5. off-highway machine driving wide dumper all hydraulic pressure steering-gear according to claim 1, which is characterized in that institute
The steering gear stated（7）For load-transducing type of priority steering gear.
6. off-highway machine driving wide dumper all hydraulic pressure steering-gear according to claim 1, which is characterized in that institute
State steering gear pump（1）For quantitative gear pump.
7. off-highway machine driving wide dumper all hydraulic pressure steering-gear according to claim 1, which is characterized in that turn
To valve group（2）Valve group is buffered with turning to（3）On be both provided with pressure tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820205622.1U CN207433625U (en) | 2018-02-06 | 2018-02-06 | A kind of off-highway machine driving wide dumper all hydraulic pressure steering-gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820205622.1U CN207433625U (en) | 2018-02-06 | 2018-02-06 | A kind of off-highway machine driving wide dumper all hydraulic pressure steering-gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207433625U true CN207433625U (en) | 2018-06-01 |
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ID=62286169
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820205622.1U Active CN207433625U (en) | 2018-02-06 | 2018-02-06 | A kind of off-highway machine driving wide dumper all hydraulic pressure steering-gear |
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| CN (1) | CN207433625U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109334759A (en) * | 2018-11-02 | 2019-02-15 | 山东蓬翔汽车有限公司 | A kind of hydraulic system of wide dumper |
| WO2022262708A1 (en) * | 2021-06-17 | 2022-12-22 | 三一重型装备有限公司 | Steering device and wide-body vehicle |
| RU221062U1 (en) * | 2021-06-17 | 2023-10-17 | Сани Хэви Эквипмент Ко., Лтд | Steering device for wide body car |
-
2018
- 2018-02-06 CN CN201820205622.1U patent/CN207433625U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109334759A (en) * | 2018-11-02 | 2019-02-15 | 山东蓬翔汽车有限公司 | A kind of hydraulic system of wide dumper |
| CN109334759B (en) * | 2018-11-02 | 2024-04-05 | 山东蓬翔汽车有限公司 | Hydraulic system of wide dump truck |
| WO2022262708A1 (en) * | 2021-06-17 | 2022-12-22 | 三一重型装备有限公司 | Steering device and wide-body vehicle |
| RU221062U1 (en) * | 2021-06-17 | 2023-10-17 | Сани Хэви Эквипмент Ко., Лтд | Steering device for wide body car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 451482, three story, general office building, 88 oyu Road, Zhengzhou economic and Technological Development Zone, Henan. Patentee after: Yutong heavy equipment Co.,Ltd. Address before: 451482 No. 88, Yu Gong Road, Zhengzhou economic and Technological Development Zone, Henan Patentee before: ZHENGZHOU ZHENGYU HEAVY INDUSTRY Co.,Ltd. |
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| CP03 | Change of name, title or address |