CN2633703Y - Forklift hydraulic device for lifting and turning with one motor - Google Patents
Forklift hydraulic device for lifting and turning with one motor Download PDFInfo
- Publication number
- CN2633703Y CN2633703Y CN 03232699 CN03232699U CN2633703Y CN 2633703 Y CN2633703 Y CN 2633703Y CN 03232699 CN03232699 CN 03232699 CN 03232699 U CN03232699 U CN 03232699U CN 2633703 Y CN2633703 Y CN 2633703Y
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- CN
- China
- Prior art keywords
- oil
- motor
- hydraulic
- turning
- deflector
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Forklifts And Lifting Vehicles (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model relates to a forklift hydraulic device for lifting and turning with one motor. The technical problem to be solved is to provide a device which has a hydraulic lifting system and a hydraulic turning system share a motor and a pump, and has the advantages of good air tightness, low noise, low cost, and energy-saving effect. The technical proposal to solve the problem is that the steering device is integrated into a preference valve. An oil outlet EF for the preference valve is connected to a multiple unit valve which is used to lift and slant the oil tank. The turning device is also connected to a hydraulic switch, the switch transmit signals to the motor via a controller. An oil inlet P of the preference valve is connected to the oil outlet of the oil pump and another oil outlet is connected to the oil inlet G of the turning device. Two oil outlets L and R of the turning device are connected to the turning oil tank or hydraulic motor, an oil filling port T of the turning device is connected to the oil tank directly. The utility model can be used for cargo handling.
Description
Technical field
The utility model relates to a kind of hydraulic efficiency gear of storage battery forktruck, especially a kind of fork truck hydraulic efficiency gear that hoists, turns to a shared motor.Belong to the power transmission component on the portage instrument.
Background technology
Storage battery forktruck with its environmental protection and energy saving, low noise, be particularly suitable for advantages such as office operation, obtain users' approval just day by day, the shared market share is also increasing.At present, the storage battery forktruck of domestic production, its hoisting system generally adopts different hydraulic power systems respectively with steering swivel system.Thereby hoisting system need adopt different motors and oil pump with steering swivel system.Because that steer motor is used is frequent, running at a high speed, not only noise is bigger, and steer motor burns easily, power steerig pump weares and teares easily.In addition, because two cover hydraulic efficiency pressure systems are arranged, hydraulic tubing and joint are more, have reduced the sealing property of hydraulic efficiency pressure system.
Summary of the invention
Task of the present utility model is the deficiency that overcomes above-mentioned prior art, a kind of improvement of hydraulic efficiency gear is provided, the hydraulic lifting system of this device and hydrostatic steering system should a shared motor and oil pumps, and have good seal performance, noise is low, cost is low, advantage such as energy-conservation.
The technical scheme that the utility model adopted is: hoist, turn to the fork truck hydraulic efficiency gear of a shared motor, contain oil pump, motor, deflector, hoist, dump ram, turn to oil cylinder or HM Hydraulic Motor, it is characterized in that the integrated pressure-gradient control valve of described deflector, oil outlet EF of pressure-gradient control valve with hoist, the multiway valve of dump ram joins, deflector is interlock one hydraulic efficiency pressure switch also, transport to motor again behind the signal via controller of this switch output, the oil inlet P of described pressure-gradient control valve and the oil outlet of oil pump join, another oil outlet of pressure-gradient control valve and the oil inlet G of deflector join, two the oil outlet R and the L of deflector are connected to described oil cylinder or the described HM Hydraulic Motor of turning to, and the oil return inlet T of deflector directly communicates with fuel tank.
The utility model is by the combination of pressure-gradient control valve, hydraulic efficiency pressure switch and controller, steer motor and power steerig pump have not only been cancelled, fundamentally solved the noise of steer motor, easily burnt and the easy drawback of mill of power steerig pump, reached the purpose that hoists and turn to a shared motor, and energy-saving effect significantly, make driver's manipulation steering effort lighter, the racing speed of fork truck is very low causes noise obviously to descend; The utility model also deflector and the integrated cover parts of pressure-gradient control valve, has significantly reduced hydraulic tubing and joint, has improved the sealing property and the reliability of hydraulic efficiency pressure system; In addition, package unit of the present utility model is except that deflector and pressure-gradient control valve, and all the other are commercially available gauge member, help reducing production costs, and helps improving the complete machine performance of fork truck, helps environmental protection.
Description of drawings
Further specify below in conjunction with embodiment shown in the drawings.
Fig. 1 is a hydraulic system principle figure of the present utility model.
Fig. 2 is hydraulic tubing figure of the present utility model.
Fig. 3 is the front view of the utility model deflector and pressure-gradient control valve.
Fig. 4 is that A-A among Fig. 3 is to view.
Fig. 5 is the scheme drawing of the utility model HM Hydraulic Motor.
The specific embodiment
Referring to Fig. 1,2, this fork truck hydraulic efficiency gear, comprise oil pump 1, motor 2, pressure-gradient control valve 3, deflector 4, by pass valve 11, hoist, dump ram 16, turn to oil cylinder 6 or HM Hydraulic Motor 5, described deflector is interlock one hydraulic efficiency pressure switch 7 also, transport to motor again behind the signal via controller 8 of this switch output, the oil inlet P of described pressure-gradient control valve and the oil outlet of oil pump join; The oil outlet H of pressure-gradient control valve and the oil inlet G of deflector join, another oil outlet EF be communicated with hoist, multiway valve 15 oil inlets of dump ram join (still adopting prior art); Two oil outlet R, L of deflector are connected to described oil cylinder 6 or the described HM Hydraulic Motor 5 of turning to, and the oil return inlet T of deflector directly communicates with fuel tank 10.Also have among the figure: oil filter 9.
From Fig. 3, deflector shown in Figure 4 and pressure-gradient control valve as can be known: these cover parts only expose T, P, L, R and five oil-collecting holes of EF, and all the other pipelines and joint all seal in it, thereby have significantly improved the sealing property of system.In addition, Fig. 4 has also shown hydraulic efficiency pressure switch 7 positions, has shown that the rotation of bearing circle 18 can be oppressed hydraulic efficiency pressure switch generation signal, and concrete connection structure is a prior art.
Principle of work of the present utility model is as follows:
Open key switch, connect motor 2, this moment hydraulic efficiency pressure switch 7 access failures, motor is with lower rotation speed operation and start oil pump 1, oil pump is transformed into high pressure oil to the low pressure oil in the fuel tank 10, and oil is transported to the oil inlet P of pressure-gradient control valve 3, through oil outlet EF to multiway valve, oil return is got back to fuel tank by multiway valve, lays the first stone for turning to; When driver's steering wheel rotation, deflector 4 produces certain pressure at the hydraulic efficiency pressure switch place of institute's interlock, thereby connect hydraulic efficiency pressure switch and send signal, this signal passes to controller 8, controller control Oil pump electrical machinery rotates at a relatively high speed, pump output high flow turns to oil cylinder 6 (or HM Hydraulic Motor 5) by deflector and pressure-gradient control valve driving, realizes fork-truck steering; As driver not during steering wheel rotation, the hydraulic efficiency pressure switch signal disconnects, and motor slows down and also remains on than slow speed of revolution running down, turns to realizing next time.
Claims (1)
1, hoist, turn to the fork truck hydraulic efficiency gear of a shared motor, contain oil pump (1), motor (2), deflector (4), hoist, dump ram (16), turn to oil cylinder (6) or HM Hydraulic Motor (5), it is characterized in that: the integrated pressure-gradient control valve of described deflector (4) (3), an oil outlet (EF) of pressure-gradient control valve (3) with hoist, the multiway valve (15) of dump ram (16) joins, interlock one hydraulic efficiency pressure switch (7) is gone back in deflector (4), transport to motor (2) again behind the signal via controller (8) of this switch output, the oil inlet (P) of described pressure-gradient control valve (3) joins with the oil outlet of oil pump, the oil inlet (G) of another oil outlet of pressure-gradient control valve (3) and deflector (4) joins, two oil outlets (R) of deflector with (L) be connected to described oil cylinder (6) or the described HM Hydraulic Motor (5) of turning to, the return opening of deflector (T) directly communicates with fuel tank (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232699 CN2633703Y (en) | 2003-07-01 | 2003-07-01 | Forklift hydraulic device for lifting and turning with one motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232699 CN2633703Y (en) | 2003-07-01 | 2003-07-01 | Forklift hydraulic device for lifting and turning with one motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2633703Y true CN2633703Y (en) | 2004-08-18 |
Family
ID=34291549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03232699 Expired - Lifetime CN2633703Y (en) | 2003-07-01 | 2003-07-01 | Forklift hydraulic device for lifting and turning with one motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2633703Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1895991B (en) * | 2005-07-11 | 2010-08-25 | 容海因里希股份公司 | For wheel chassis for a floor conveyor |
| CN101489853B (en) * | 2006-12-21 | 2012-06-06 | 日立建机株式会社 | Steering system for working vehicle |
| CN103754258A (en) * | 2013-08-16 | 2014-04-30 | 杨鹏波 | Forklift steering axle |
| WO2015078421A1 (en) * | 2013-11-29 | 2015-06-04 | 比亚迪股份有限公司 | Remote control steering system for vehicle and vehicle having same |
| CN105257617A (en) * | 2015-11-25 | 2016-01-20 | 湘电重型装备有限公司 | Pressure-filling and unloading-controlling integrated system of large electric wheel dump truck |
| CN105329314A (en) * | 2015-12-04 | 2016-02-17 | 安徽合叉叉车有限公司 | Storage battery electric forklift integrating hydraulic pump and steering pump |
| CN106966339A (en) * | 2017-05-10 | 2017-07-21 | 安徽宇锋仓储设备有限公司 | A kind of electri forklift steering hydraulic system |
| CN113086002A (en) * | 2021-05-25 | 2021-07-09 | 杭叉集团股份有限公司 | Automatic industrial vehicle power unit of adjusting |
-
2003
- 2003-07-01 CN CN 03232699 patent/CN2633703Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1895991B (en) * | 2005-07-11 | 2010-08-25 | 容海因里希股份公司 | For wheel chassis for a floor conveyor |
| CN101489853B (en) * | 2006-12-21 | 2012-06-06 | 日立建机株式会社 | Steering system for working vehicle |
| CN103754258A (en) * | 2013-08-16 | 2014-04-30 | 杨鹏波 | Forklift steering axle |
| WO2015078421A1 (en) * | 2013-11-29 | 2015-06-04 | 比亚迪股份有限公司 | Remote control steering system for vehicle and vehicle having same |
| CN105257617A (en) * | 2015-11-25 | 2016-01-20 | 湘电重型装备有限公司 | Pressure-filling and unloading-controlling integrated system of large electric wheel dump truck |
| CN105329314A (en) * | 2015-12-04 | 2016-02-17 | 安徽合叉叉车有限公司 | Storage battery electric forklift integrating hydraulic pump and steering pump |
| CN106966339A (en) * | 2017-05-10 | 2017-07-21 | 安徽宇锋仓储设备有限公司 | A kind of electri forklift steering hydraulic system |
| CN113086002A (en) * | 2021-05-25 | 2021-07-09 | 杭叉集团股份有限公司 | Automatic industrial vehicle power unit of adjusting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGCHA GROUP CO., LTD. Free format text: FORMER OWNER: HANGYI MACHINERY ENGINEERING CO., LTD., ZHEJIANG PROV. Effective date: 20111102 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 310004 HANGZHOU, ZHEJIANG PROVINCE TO: 311305 HANGZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20111102 Address after: 311305 Ling'an Economic Development Zone, Zhejiang, East Ring Road, No. 88, No. Patentee after: Hangcha Group Co., Ltd. Address before: 310004 No. 12, Stadium Road, Hangzhou, Zhejiang Patentee before: Zhejiang Hangcha Engineering Machinery Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130701 Granted publication date: 20040818 |