CN201660015U - Energy-saving hydraulic system for storage battery forklifts - Google Patents
Energy-saving hydraulic system for storage battery forklifts Download PDFInfo
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- CN201660015U CN201660015U CN2010201481985U CN201020148198U CN201660015U CN 201660015 U CN201660015 U CN 201660015U CN 2010201481985 U CN2010201481985 U CN 2010201481985U CN 201020148198 U CN201020148198 U CN 201020148198U CN 201660015 U CN201660015 U CN 201660015U
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Abstract
The utility model relates to an energy-saving hydraulic system for storage battery forklifts, which aims to reduce energy consumption in steering and working process of the forklifts, improve work efficiency, prolong the working time of the storage battery forklifts. The technical scheme for solving the technical problem includes that a priority flow valve is integrated on a multi-way valve, the multi-way valve is connected with a full-hydraulic diverter by the aid of the priority flow valve, an LS port of the full-hydraulic diverter is connected with an LS port of the priority flow valve through an oil pipe (I), a P port of the full-hydraulic diverter is connected with a CF port of the priority flow valve through an oil pipe (II), a T port of the full-hydraulic diverter is connected with an oil box through an oil pipe (III), and a multi-way valve passage (IV) in the multi-way valve is connected with the oil box. The energy-saving hydraulic system is applicable to a 1-8 ton counter balanced four-fulcrum storage battery forklift, a 1-2 ton counter balanced three-fulcrum storage battery forklift or a 1-3 ton forward shifting storage battery forklift.
Description
Technical field
The utility model relates to a kind of storage battery forktruck energy-saving hydraulic system.Be applicable to 1～8 ton of balance weight type, four fulcrum storage battery forktrucks, 1～2 ton of balance weight type three fulcrum storage battery forktruck or 1～3 ton of reach formula storage battery forktruck.
Background technology
The hydraulic efficiency pressure system of storage battery forktruck mainly contains three kinds of patterns: a kind of is that hydrostatic steering system and hydraulic system are independent separately, carries out work by separately motor pump fuel feeding; Second kind is that the hydraulic system is only arranged, and turns to function to turn to technology to realize by other mode such as electricity; The third is that common pump or double pump interflow turn to preferential hydraulic efficiency pressure system.It is more that the first two plants system hardware, reach good energy-saving effect, and the complete machine cost is corresponding higher.And the third is the work of same set of motor pump fuel feeding, is guaranteed to turn to preferentially by pressure-gradient control valve.Pressure-gradient control valve can be connected in separately in the system oil-way, also can be combined on deflector and the oil pump.On the large-tonnage counterbalanced lift truck, pressure-gradient control valve usually is to be connected in the system oil-way pipeline complexity separately.And on the counterbalanced lift truck of little tonnage, pressure-gradient control valve usually is to be combined on deflector or the oil pump, as the patent No. is that the Chinese utility model patent of ZL03232688.8 discloses a kind of " hoisting; turn to the fork truck hydraulic efficiency gear of a shared motor ", this device is dynamic load sensing type hydraulic efficiency pressure system, key components is the deflector of combination priority valve, hydraulic efficiency pressure switch and multiway valve, when this system applies during in the large-tonnage fork truck, energy-saving effect is just not very good, major cause is to connect when hydraulic efficiency pressure switch, the running of controller control motor at high speed, then consume too much electric weight, and when turning down motor speed, bearing circle changes then motionless or shake.In addition, no matter hydraulic efficiency pressure switch is logical and obstructed, and pressure-gradient control valve all can't guarantee the flow that preferentially turns to.
Summary of the invention
The technical problems to be solved in the utility model is: at problems of the prior art, a kind of storage battery forktruck energy-saving hydraulic system is provided, be intended to reduce the energy consumption in fork-truck steering and the working process, increase work efficiency, prolong the work-hours of storage battery forktruck.
The technical scheme that the utility model adopted is: storage battery forktruck energy-saving hydraulic system comprises the controller, motor and the oil pump that link to each other successively; The load sensing type all-hydraulic steering gear that links to each other with steering hardware; The dynamic load sensing priority type multiway valve that is connected with one group of operating cylinder, it is characterized in that: an integrated preferential flow metered valve on the described multiway valve, and be connected with all-hydraulic steering gear by this preferential flow metered valve, wherein, the LS mouth of all-hydraulic steering gear connects the LS mouth of preferential flow metered valve through oil pipe I, the P mouth of all-hydraulic steering gear connects the CF mouth of preferential flow metered valve through oil pipe II, and the T mouth of all-hydraulic steering gear is through oil pipe III connected tank, and the multiway valve passage IV in the multiway valve links to each other with fuel tank.
Described steering hardware is steering motor or steering cylinder.
Described operating cylinder comprises the cylinder that hoists, inclined cylinder and sidesway cylinder.
The beneficial effects of the utility model are: 1) this hydraulic efficiency pressure system energy-saving effect is obvious, compares with original hydraulic system, is applied to 1～3 ton forklift and can lengthens working hours 1～1.5 hour; 2) can reduce the working oil temperature of hydraulic efficiency pressure system, prolong the service life of hydraulic efficiency pressure system components and parts; 3) obviously reduce the fork truck noise in when work, especially turn to, the sound in the driving process; 4) the hydraulic pressure components and parts dependable performance of this hydraulic efficiency pressure system employing, with low cost.
Description of drawings
Fig. 1 is the utility model hydraulic system principle figure.
The specific embodiment
As shown in Figure 1, present embodiment storage battery forktruck energy-saving hydraulic system has the controller 1, motor 2 and the oil pump 3 that link to each other successively; Another part is the load sensing type all-hydraulic steering gear 5 that links to each other with steering motor 8 or steering cylinder; Some be respectively with 3 cylinders 9 that hoist (by the A1 mouth of multiway valve), 2 inclined cylinders 10 (by A2, B2 mouth) and 1 sidesway cylinder 11 (by A3, B3 mouth) bonded assembly dynamic load sensing priority type multiway valve 7.These routine characteristics are integrated preferential flow metered valves 6 on multiway valve 7, and are made of one with multiway valve, are connected with all-hydraulic steering gear 5 by this preferential flow metered valve, preferentially guarantee handling maneuver.In the connection of pipeline, the LS mouth of all-hydraulic steering gear 5 is received the LS mouth of preferential flow metered valve 6 through oil pipe I, the P mouth of all-hydraulic steering gear 5 is received the CF mouth of preferential flow metered valve 6 through oil pipe II, the T mouth of all-hydraulic steering gear 5 is access to fuel tank 4 through oil pipe III, and the multiway valve passage IV in the multiway valve 7 also links to each other with fuel tank 4.
In said system, the A1 mouth in the multiway valve 7 and hoist and be connected to governor valve 12 between the cylinder 9.Between PT and T, be connected to main safety valve 13, between PT and preferential flow metered valve 6, be connected to and turn to by pass valve 14.No matter be that preferential flow metered valve 6 or each operating valve all are equipped with check valve 15 on chargine line.
Principle of work of the present utility model is: when steering wheel rotation, the steering load pressure signal is sent to preferential flow metered valve 6 through oil pipe I, the preferential flow metered valve is a fixed poor decompression member, no matter how the delivery quality of load pressure and pump changes, the all preferential distribution corresponding discharge that guarantees is supplied with all-hydraulic steering gear 5 by oil pipe II, the flow that distributes equals the product of bearing circle rotating speed and deflector discharge capacity all the time, when bearing circle does not change, has only very little flow in the deflector by the direct oil sump tank 4 of oil pipe III.The flow of oil pump 3 outputs, except that to the required flow of the preferential supply of deflector, remainder is supplied with the hydraulic oil circuit and is used, and when work system was not worked, remainder was then got back to fuel tank 4 by multiway valve passage IV.1 pair of direct current of controller or alternating current dynamo 2 carry out direct control, be provided with respectively turn to, joint operation, hoist separately, the motor speed during different operating state such as inclination, sidesway.Native system is set lower rotating speed, just can guarantee to turn to, the flow of inclination, sidesway, reaches purpose of energy saving.
Claims (3)
1. a storage battery forktruck energy-saving hydraulic system comprises the controller (1), motor (2) and the oil pump (3) that link to each other successively; The load sensing type all-hydraulic steering gear (5) that links to each other with steering hardware; The dynamic load sensing priority type multiway valve (7) that is connected with one group of operating cylinder, it is characterized in that: described multiway valve (7) is gone up an integrated preferential flow metered valve (6), and be connected with all-hydraulic steering gear (5) by this preferential flow metered valve, wherein, the LS mouth of all-hydraulic steering gear (5) connects the LS mouth of preferential flow metered valve (6) through oil pipe (I), the P mouth of all-hydraulic steering gear (5) connects the CF mouth of preferential flow metered valve (6) through oil pipe (II), the T mouth of all-hydraulic steering gear (5) is through oil pipe (III) connected tank (4), and the multiway valve passage (IV) in the multiway valve (7) links to each other with fuel tank.
2. storage battery forktruck energy-saving hydraulic according to claim 1 system, it is characterized in that: described steering hardware is steering motor (8) or steering cylinder.
3. storage battery forktruck energy-saving hydraulic according to claim 1 system, it is characterized in that: described operating cylinder comprises the cylinder that hoists (9), inclined cylinder (10) and sidesway cylinder (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201481985U CN201660015U (en) | 2010-03-29 | 2010-03-29 | Energy-saving hydraulic system for storage battery forklifts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201481985U CN201660015U (en) | 2010-03-29 | 2010-03-29 | Energy-saving hydraulic system for storage battery forklifts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201660015U true CN201660015U (en) | 2010-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201481985U Expired - Lifetime CN201660015U (en) | 2010-03-29 | 2010-03-29 | Energy-saving hydraulic system for storage battery forklifts |
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| Country | Link |
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| CN (1) | CN201660015U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134047A (en) * | 2011-02-15 | 2011-07-27 | 安徽合力股份有限公司 | Energy-saving hydraulic system of electric forklift |
| CN102134048A (en) * | 2011-02-15 | 2011-07-27 | 安徽合力股份有限公司 | Hydraulic system of hybrid power forklift |
| CN102530780A (en) * | 2012-03-01 | 2012-07-04 | 安徽合力股份有限公司 | Hydraulic pipeline system for forklift two-section full-free gantry |
| CN102616705A (en) * | 2012-03-27 | 2012-08-01 | 安徽合力股份有限公司 | Energy-saving forklift hydraulic system with energy recovery function |
| CN102633213A (en) * | 2012-04-28 | 2012-08-15 | 安徽合力股份有限公司 | Energy regeneration type forklift hydraulic system |
| CN110228774A (en) * | 2019-05-08 | 2019-09-13 | 杭叉集团股份有限公司 | A kind of fork truck and forklift door frame hydraulic system for lifting |
| US10457534B2 (en) * | 2015-10-29 | 2019-10-29 | Konecranes Global Corporation | Heavy-duty lift truck |
| CN113135223A (en) * | 2021-04-25 | 2021-07-20 | 徐工集团工程机械股份有限公司科技分公司 | Steering drive control system and engineering machinery |
-
2010
- 2010-03-29 CN CN2010201481985U patent/CN201660015U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134048B (en) * | 2011-02-15 | 2012-10-10 | 安徽合力股份有限公司 | Hydraulic system of hybrid power forklift |
| CN102134048A (en) * | 2011-02-15 | 2011-07-27 | 安徽合力股份有限公司 | Hydraulic system of hybrid power forklift |
| CN102134047A (en) * | 2011-02-15 | 2011-07-27 | 安徽合力股份有限公司 | Energy-saving hydraulic system of electric forklift |
| CN102530780A (en) * | 2012-03-01 | 2012-07-04 | 安徽合力股份有限公司 | Hydraulic pipeline system for forklift two-section full-free gantry |
| CN102616705A (en) * | 2012-03-27 | 2012-08-01 | 安徽合力股份有限公司 | Energy-saving forklift hydraulic system with energy recovery function |
| CN102633213B (en) * | 2012-04-28 | 2014-10-22 | 安徽合力股份有限公司 | Energy regeneration type forklift hydraulic system |
| CN102633213A (en) * | 2012-04-28 | 2012-08-15 | 安徽合力股份有限公司 | Energy regeneration type forklift hydraulic system |
| US9482248B2 (en) | 2012-04-28 | 2016-11-01 | Anhui Heli Co., Ltd | Energy regeneration type forklift hydraulic system |
| US10457534B2 (en) * | 2015-10-29 | 2019-10-29 | Konecranes Global Corporation | Heavy-duty lift truck |
| CN110228774A (en) * | 2019-05-08 | 2019-09-13 | 杭叉集团股份有限公司 | A kind of fork truck and forklift door frame hydraulic system for lifting |
| CN110228774B (en) * | 2019-05-08 | 2024-04-09 | 杭叉集团股份有限公司 | Fork truck and fork truck portal hydraulic system that goes up and down |
| CN113135223A (en) * | 2021-04-25 | 2021-07-20 | 徐工集团工程机械股份有限公司科技分公司 | Steering drive control system and engineering machinery |
| CN113135223B (en) * | 2021-04-25 | 2022-07-05 | 徐工集团工程机械股份有限公司科技分公司 | Steering drive control system and engineering machinery |
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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: ZHEJIANG HANGCHA IMP.+EXP.CO., LTD. Effective date: 20110623 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 310022 NO. 398, SHIQIAO ROAD, XIACHENG DISTRICT, HANGZHOU CITY, ZHEJIANG PROVINCE TO: 311305 NO. 88, EAST RING ROAD, LIN'AN ECONOMIC DEVELOPMENT ZONE, HANGZHOU CITY, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110623 Address after: 311305 Ling'an Economic Development Zone, Zhejiang, East Ring Road, No. 88, No. Patentee after: Hangcha Group Co., Ltd. Address before: 310022 No. 398 Shiqiao Road, Xiacheng District, Zhejiang, Hangzhou Patentee before: Zhejiang Hangcha Imp.&Exp.Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101201 |