CN205149967U - Two front axle are multiloop hydrostatic steering system for heavy -duty car - Google Patents
Two front axle are multiloop hydrostatic steering system for heavy -duty car Download PDFInfo
- Publication number
- CN205149967U CN205149967U CN201520985183.7U CN201520985183U CN205149967U CN 205149967 U CN205149967 U CN 205149967U CN 201520985183 U CN201520985183 U CN 201520985183U CN 205149967 U CN205149967 U CN 205149967U
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- hydraulic circuit
- servo cylinder
- pump
- heavy
- steering system
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- 230000002706 hydrostatic effect Effects 0.000 title claims abstract description 16
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 1
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- Power Steering Mechanism (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
The utility model provides a two front axle are multiloop hydrostatic steering system for heavy -duty car, includes first axle, second axle, first servo -cylinder, second servo -cylinder and third servo -cylinder, its improvement lies in: first servo -cylinder and third servo -cylinder correspond a hydraulic circuit, and the second servo -cylinder corresponds the 2nd hydraulic circuit, be provided with an auxiliary pump among the hydraulic circuit, a hydraulic circuit provides hydraulic pressure by the auxiliary pump, be provided with a main pump and a plunger pump among the 2nd hydraulic circuit, the 2nd hydraulic circuit one in by main pump and plunger pump provides hydraulic pressure. The utility model discloses an useful technological effect is: the utility model provides a two front axle are multiloop hydrostatic steering system for heavy -duty car, under the normal condition, this a steering system can provide powerful power -assisted steering for the heavy -duty car, guarantees the flexibility that turns to of heavy -duty car, when breaking down, still has partial function can bring into play the power -assisted steering effect among a steering system, guarantees driving safety.
Description
Technical field
The utility model relates to a kind of heavy motor vehicle hydrostatic steering system, particularly relates to a kind of heavy-duty automobile with the double front axle multiloop hydrostatic steering system.
Background technology
In prior art, the hydrostatic steering system on heavy motor vehicle generally adopts single hydraulic circuit to control; Problems existing is: the hydrostatic steering system that single hydraulic circuit controls, its power steering that can provide is less, the demand of the heavy-duty automobile with the double front axle of more than 10 tons loads can not be met, and owing to only having a hydraulic circuit, cause the less stable of hydrostatic steering system, once hydraulic circuit breaks down, will cause turning to malfunctioning, be unfavorable for traffic safety.
Utility model content
For the problem in background technology, the utility model proposes a kind of heavy-duty automobile with the double front axle multiloop hydrostatic steering system, comprise the first vehicle bridge, the second vehicle bridge, the first servo cylinder, the second servo cylinder and the 3rd servo cylinder, described first vehicle bridge is positioned on front side of car body, second vehicle bridge is positioned on rear side of car body, first servo cylinder is arranged in the first vehicle bridge, second servo cylinder and the 3rd servo cylinder are arranged in the second vehicle bridge, first servo cylinder and the second servo cylinder are all positioned at the left side of car body, and the 3rd servo cylinder is positioned at the right side of car body; Its improvement is: described first servo cylinder and the 3rd servo cylinder drive by the first hydraulic circuit, and the second servo cylinder drives by the second hydraulic circuit, the first hydraulic circuit and the second hydraulic circuit separate; Be provided with an auxiliary pump in described first hydraulic circuit, the first hydraulic circuit provides hydraulic pressure by auxiliary pump; Be provided with a main pump and a plunger pump in described second hydraulic circuit, the second hydraulic circuit provides hydraulic pressure by the one in main pump and plunger pump.
In the utility model, be provided with two hydraulic circuits, during nominal situation, main pump and auxiliary pump work simultaneously, drive three servo cylinders to work by two hydraulic circuits simultaneously, powerful power steering can be provided for steering swivel system, more than 10 tons load heavy motor vehicles can be made to obtain good steering flexibility; Owing to there are two hydraulic circuits in steering swivel system, when one in two hydraulic circuits breaks down, another one still can play a role, effectively can improve the safety of steering swivel system, and on this basis, in the utility model, also devise plunger pump for subsequent use for main pump, when main pump breaks down, take over main pump work by plunger pump, the safety of steering swivel system can be improved further.
Preferably, described main pump is directly from driving engine power taking, and described auxiliary pump is from the power taking of driving engine rear power takeoff, and described plunger pump is from power taking change speed gear box.
Preferably, described main pump is connected with all emergent with one change-over valve of the control part of plunger pump, and emergent change-over valve controls the switching of main pump and plunger pump.
Advantageous Effects of the present utility model is: provide a kind of heavy-duty automobile with the double front axle multiloop hydrostatic steering system, under normal circumstances, this steering swivel system can provide powerful power steering for heavy motor vehicle, ensure the steering flexibility of heavy motor vehicle, when breaking down, still have part function can play power steering effect in steering swivel system, ensure travel safety.
Accompanying drawing explanation
Fig. 1, principle schematic of the present utility model;
Fig. 2, using state schematic diagram of the present utility model;
In figure, each title corresponding to mark is respectively: the first servo cylinder 1, second servo cylinder 2, the 3rd servo cylinder 3, first hydraulic circuit 4, second hydraulic circuit 5, auxiliary pump 6, main pump 7, plunger pump 8, emergent change-over valve 9, first vehicle bridge A, the second vehicle bridge B.
Detailed description of the invention
A kind of heavy-duty automobile with the double front axle multiloop hydrostatic steering system, comprise the first vehicle bridge, the second vehicle bridge, the first servo cylinder 1, second servo cylinder 2 and the 3rd servo cylinder 3, described first vehicle bridge is positioned on front side of car body, second vehicle bridge is positioned on rear side of car body, first servo cylinder 1 is arranged in the first vehicle bridge, second servo cylinder 2 and the 3rd servo cylinder 3 are arranged in the second vehicle bridge, and the first servo cylinder 1 and the second servo cylinder 2 are all positioned at the left side of car body, and the 3rd servo cylinder 3 is positioned at the right side of car body; Its improvement is: described first servo cylinder 1 and the 3rd servo cylinder 3 drive by the first hydraulic circuit 4, and the second servo cylinder 2 drives by the second hydraulic circuit 5, the first hydraulic circuit 4 and the second hydraulic circuit 5 separate; Be provided with auxiliary pump 6, first hydraulic circuit 4 in described first hydraulic circuit 4 and provide hydraulic pressure by auxiliary pump 6; A main pump 7 is provided with and plunger pump 8, second hydraulic circuit 5 provides hydraulic pressure by the one in main pump 7 and plunger pump 8 in described second hydraulic circuit 5.
Further, described main pump 7 is directly from driving engine power taking, and described auxiliary pump 6 is from the power taking of driving engine rear power takeoff, and described plunger pump 8 is from power taking change speed gear box.
Further, described main pump 7 is connected with all emergent with one change-over valve 9 of the control part of plunger pump 8, and emergent change-over valve 9 controls the switching of main pump 7 and plunger pump 8.
Those skilled in the art should be clear, general knowledge based on this area is known, auxiliary pump 6 and main pump 7 are while providing hydraulic pressure for hydraulic circuit, also for deflector provides power, in addition, the device such as condenser, steering oil reservoir is also related in hydrostatic steering system, because they and improvement relevance of the present utility model are little, therefore repeat herein, if any part not to the utmost, those skilled in the art should understand the utility model in conjunction with corresponding means of the prior art.
Claims (3)
1. a heavy-duty automobile with the double front axle multiloop hydrostatic steering system, comprise the first vehicle bridge, the second vehicle bridge, the first servo cylinder (1), the second servo cylinder (2) and the 3rd servo cylinder (3), described first vehicle bridge is positioned on front side of car body, second vehicle bridge is positioned on rear side of car body, first servo cylinder (1) is arranged in the first vehicle bridge, second servo cylinder (2) and the 3rd servo cylinder (3) are arranged in the second vehicle bridge, first servo cylinder (1) and the second servo cylinder (2) are all positioned at the left side of car body, and the 3rd servo cylinder (3) is positioned at the right side of car body; It is characterized in that: described first servo cylinder (1) and the 3rd servo cylinder (3) drive by the first hydraulic circuit (4), the second servo cylinder (2) drives by the second hydraulic circuit (5), the first hydraulic circuit (4) and the second hydraulic circuit (5) separate; Be provided with an auxiliary pump (6) in described first hydraulic circuit (4), the first hydraulic circuit (4) provides hydraulic pressure by auxiliary pump (6); Be provided with a main pump (7) and a plunger pump (8) in described second hydraulic circuit (5), the second hydraulic circuit (5) provides hydraulic pressure by the one in main pump (7) and plunger pump (8).
2. heavy-duty automobile with the double front axle multiloop hydrostatic steering system according to claim 1, it is characterized in that: described main pump (7) is directly from driving engine power taking, described auxiliary pump (6) is from the power taking of driving engine rear power takeoff, and described plunger pump (8) is from power taking change speed gear box.
3. heavy-duty automobile with the double front axle multiloop hydrostatic steering system according to claim 1, it is characterized in that: described main pump (7) is connected with all emergent with one change-over valve (9) of the control part of plunger pump (8), and emergent change-over valve (9) controls the switching of main pump (7) and plunger pump (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520985183.7U CN205149967U (en) | 2015-12-02 | 2015-12-02 | Two front axle are multiloop hydrostatic steering system for heavy -duty car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520985183.7U CN205149967U (en) | 2015-12-02 | 2015-12-02 | Two front axle are multiloop hydrostatic steering system for heavy -duty car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205149967U true CN205149967U (en) | 2016-04-13 |
Family
ID=55685688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520985183.7U Expired - Fee Related CN205149967U (en) | 2015-12-02 | 2015-12-02 | Two front axle are multiloop hydrostatic steering system for heavy -duty car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205149967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113335377A (en) * | 2021-05-27 | 2021-09-03 | 重庆望江工业有限公司 | Tandem type double front axle steering power assisting device |
-
2015
- 2015-12-02 CN CN201520985183.7U patent/CN205149967U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113335377A (en) * | 2021-05-27 | 2021-09-03 | 重庆望江工业有限公司 | Tandem type double front axle steering power assisting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 |