CN201646846U - Hydraulic steering system for forward fork lift - Google Patents
Hydraulic steering system for forward fork lift Download PDFInfo
- Publication number
- CN201646846U CN201646846U CN201020195009XU CN201020195009U CN201646846U CN 201646846 U CN201646846 U CN 201646846U CN 201020195009X U CN201020195009X U CN 201020195009XU CN 201020195009 U CN201020195009 U CN 201020195009U CN 201646846 U CN201646846 U CN 201646846U
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- hydraulic
- steering
- oil
- communicated
- steering gear
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Abstract
The utility model relates to a hydraulic steering system for a forward fork lift. A steering oil pump of the system is arranged at the end of an output shaft of a steering motor. An oil inlet of the steering oil pump is communicated with a hydraulic oil tank by an oil absorption filter. An oil outlet of the steering oil pump is respectively communicated with an oil inlet and an overflow valve of a full-hydraulic steering gear. A return opening of the overflow valve is communicated with the hydraulic oil tank. Two working oil ports of the full-hydraulic steering gear are respectively connected with two working oil ports of a hydraulic motor. A return opening of the full-hydraulic steering gear is communicated with the hydraulic oil tank by a return filter. A rotating shaft of the full-hydraulic steering gear is connected with a spline housing of a steering wheel. The hydraulic steering system for the forward fork lift has the advantages of simple structure, convenient installation, compact profile, good manufacturability, low cost, capability of efficiently guaranteeing normal operation of the steering system, comfortable operation, improvement of working efficiency, reliable use and simple maintenance.
Description
Technical field
The utility model belongs to the fork-truck steering system, is specifically related to the steering swivel system of reach truck.
Background technology
Existing in the market reach truck steering swivel system generally adopts EPS electrical power steering or mechanical steering.The electrical power steering configuration is higher, and cost is higher relatively, thereby mainly is suitable for the middle and high end customer group.And the mechanical steering class of domestic other producer's configurations is lower, poor-performing, and handling maneuver moment is bigger, easily causes the navigating mate premature fatigue.
Summary of the invention
In order to solve the problem that above-mentioned existing reach truck steering swivel system exists, the utility model provides a kind of reach truck hydrostatic steering system.
Concrete technical solution is as follows:
The reach truck hydrostatic steering system comprises steer motor 7, power steerig pump 6, all-hydraulic steering gear 4 and HM Hydraulic Motor 2; Described power steerig pump 6 is located at the output axle head of steer motor 7, the oil inlet of power steerig pump 6 is being communicated with hydraulic reservoir 10 by oil suction filter 8, the oil outlet of power steerig pump 6 is being communicated with all-hydraulic steering gear 4 oil inlets and by pass valve 9 respectively, and the return opening of by pass valve 9 is being communicated with hydraulic reservoir 10; 2 two actuator ports of two actuator ports and HM Hydraulic Motor of all-hydraulic steering gear 4 are connected respectively, and the return opening of all-hydraulic steering gear 4 is being communicated with hydraulic reservoir 10 by return filter 5; The output shaft of HM Hydraulic Motor 2 is provided with output chain gear 1; The spline housing of the turning cylinder closure dish 3 of all-hydraulic steering gear 4.
The utility model has been compared following advantage with existing other steering swivel system:
1, simple in structure, easy for installation, the compact appearance of the utility model, good manufacturability, cost are low.
2, can efficiently guarantee the steering swivel system normal operation, operate comfortablely, increase work efficiency.
3, the reach truck hydrostatic steering system uses reliable, easy to maintenance.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment:
Referring to Fig. 1, the reach truck hydrostatic steering system comprises steer motor 7, power steerig pump 6, all-hydraulic steering gear 4 and HM Hydraulic Motor 2; Described power steerig pump 6 is installed on the output axle head of steer motor 7, the oil inlet of power steerig pump 6 is being communicated with hydraulic reservoir 10 by oil suction filter 8, the oil outlet of power steerig pump 6 is being communicated with the oil inlet of the by pass valve 9 in the multiway valve in all-hydraulic steering gear 4 oil inlets and the fork truck hydraulic efficiency pressure system respectively, and the return opening of by pass valve 9 is being communicated with hydraulic reservoir 10; Two actuator ports of all-hydraulic steering gear 4 are being communicated with 2 two actuator ports of HM Hydraulic Motor respectively, and the return opening of all-hydraulic steering gear 4 is being communicated with hydraulic reservoir 10 by return filter 5; Output chain gear 1 is installed on the output shaft of HM Hydraulic Motor 2, and HM Hydraulic Motor 2 is connecting the wheel flutter of fork truck by chain drive; The spline housing of the turning cylinder closure dish 3 of all-hydraulic steering gear 4.
During work, when operating personal direction of operating dish 3 rotated, all-hydraulic steering gear 4 was in control position, and the steering pressure sensor output signal that is installed in simultaneously on all-hydraulic steering gear 4 working lines arrives the steer motor controller, 7 actions of control steer motor.Steer motor 7 drives power steerig pump 6 rotations, the high-pressure and hydraulic oil of power steerig pump 6 outputs arrives HM Hydraulic Motor 2 through all-hydraulic steering gear, high pressure oil promotes HM Hydraulic Motor 2 rotations, and HM Hydraulic Motor 2 drives wheel flutter deflection by chain drive, realizes the handling maneuver of reach truck.The pressure of this hydrostatic steering system is set up by by pass valve 9, prevents overload, damages hydrostatic steering system, and guarantees the fluid-link steering normal operation.
Hydrostatic steering system is selected ultralow moment of torsion all-hydraulic steering gear 4 for use, and handling maneuver moment only is ≯ 1.4N.M, and is comparatively approaching with EPS electrical power steering operating torque; And select the low noise gear type pump for use, operating noise≤65 decibel.
Claims (1)
1. the reach truck hydrostatic steering system is characterized in that: comprise steer motor (7), power steerig pump (6), all-hydraulic steering gear (4) and HM Hydraulic Motor (2); Described power steerig pump (6) is located at the output axle head of steer motor (7), the oil inlet of power steerig pump (6) is being communicated with hydraulic reservoir (10) by oil suction filter (8), the oil outlet of power steerig pump (6) is being communicated with all-hydraulic steering gear (4) oil inlet and by pass valve (9) respectively, and the return opening of by pass valve (9) is being communicated with hydraulic reservoir (10); (2) two actuator ports of two actuator ports and HM Hydraulic Motor of all-hydraulic steering gear (4) are connected respectively, and the return opening of all-hydraulic steering gear (4) is being communicated with hydraulic reservoir (10) by return filter (5); The output shaft of HM Hydraulic Motor (2) is provided with output chain gear (1); The spline housing of the turning cylinder closure dish (3) of all-hydraulic steering gear (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020195009XU CN201646846U (en) | 2010-05-13 | 2010-05-13 | Hydraulic steering system for forward fork lift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020195009XU CN201646846U (en) | 2010-05-13 | 2010-05-13 | Hydraulic steering system for forward fork lift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201646846U true CN201646846U (en) | 2010-11-24 |
Family
ID=43112068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020195009XU Expired - Lifetime CN201646846U (en) | 2010-05-13 | 2010-05-13 | Hydraulic steering system for forward fork lift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201646846U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102229328A (en) * | 2011-05-05 | 2011-11-02 | 四川大学 | Vehicle mechanical energy-saving hydraulic system with multi-pump confluence |
| CN102556148A (en) * | 2010-12-08 | 2012-07-11 | 江苏罡阳动力转向器厂 | Vehicular electrically-controlled hydraulic power steering system |
| CN102963419A (en) * | 2012-11-14 | 2013-03-13 | 北京市政中燕工程机械制造有限公司 | Hydraulic steering technology-based wide-body mining vehicle |
| CN104742964A (en) * | 2013-12-26 | 2015-07-01 | 湖北万山宏业汽车零部件有限公司 | Emergent steering system for engineering machinery |
| CN105883675A (en) * | 2016-06-16 | 2016-08-24 | 苏州先锋物流装备科技有限公司 | Hydraulic power-assisted steering reach forklift |
-
2010
- 2010-05-13 CN CN201020195009XU patent/CN201646846U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556148A (en) * | 2010-12-08 | 2012-07-11 | 江苏罡阳动力转向器厂 | Vehicular electrically-controlled hydraulic power steering system |
| CN102229328A (en) * | 2011-05-05 | 2011-11-02 | 四川大学 | Vehicle mechanical energy-saving hydraulic system with multi-pump confluence |
| CN102229328B (en) * | 2011-05-05 | 2013-05-08 | 四川大学 | Vehicle mechanical energy-saving hydraulic system with multi-pump confluence |
| CN102963419A (en) * | 2012-11-14 | 2013-03-13 | 北京市政中燕工程机械制造有限公司 | Hydraulic steering technology-based wide-body mining vehicle |
| CN104742964A (en) * | 2013-12-26 | 2015-07-01 | 湖北万山宏业汽车零部件有限公司 | Emergent steering system for engineering machinery |
| CN105883675A (en) * | 2016-06-16 | 2016-08-24 | 苏州先锋物流装备科技有限公司 | Hydraulic power-assisted steering reach forklift |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |
|
| CX01 | Expiry of patent term |