CN104196806A - Synchronizing circuit of flow distributing and collecting valve for two-column gantry lifter - Google Patents
Synchronizing circuit of flow distributing and collecting valve for two-column gantry lifter Download PDFInfo
- Publication number
- CN104196806A CN104196806A CN201410475863.4A CN201410475863A CN104196806A CN 104196806 A CN104196806 A CN 104196806A CN 201410475863 A CN201410475863 A CN 201410475863A CN 104196806 A CN104196806 A CN 104196806A
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- valve
- combiner
- flow divider
- oil
- selector valve
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Abstract
The invention discloses a synchronizing circuit of a flow distributing and collecting valve for a two-column gantry lifter and belongs to the field of hydraulic transmission. The two-column gantry lifter comprises an oil tank, a hydraulic pump, an overflow valve, a reversing valve, hydraulic cylinders, hydraulic control one-way valves and the flow distributing and collecting valve. An inlet oil pipe of the hydraulic pump is connected with the oil tank, an outlet oil pipe is respectively connected with the overflow valve and a reversing valve, an oil return pipe of the overflow valve and the reversing valve is connected with the oil tank, the flow distributing and collecting valve is connected with an oil port B of the reversing valve, the hydraulic control one-way valves are serially connected on connecting oilways of the hydraulic cylinders and the flow distributing and collecting valve, and control oilways of the hydraulic control one-way valves are connected on an oil port A of the reversing valve. The synchronizing circuit solves the problem that during operating of the two-column gantry lifter, ascending and descending speed and displacement are less synchronous of the hydraulic cylinders, and has the advantages of simple structure, reasonableness in design and manufacturability.
Description
Technical field
The invention belongs to hydraulic transmission field, more particularly, relate to a kind of synchronizing circuit of lifting machine hydraulic system.
Background technique
Along with the development of automobile industry, auto repair becomes an emerging industry gradually with maintenance.Wherein lifting machine, as the important tool in auto repair and servicing operations, has also obtained development faster.Lifting machine is mainly that automobile is brought up to another safe altitude from a safe altitude, so that manual operation and maintenance.Lifting machine has a lot of types at present, according to the kind of drive, can be divided into mechanical transmission and hydraulic transmission.Mechanical transmission structure is simple, low price, but lifting weight is restricted, and leading screw or work nut slide fastener easily occur, and has larger potential safety hazard.And hydraulic transmission lifting machine Safety performance good, operate steadily, easy to maintenance and working efficiency is high, is the main flow type that current lifting machine transmission is used.For the hydraulic system of two post gantry lifting machines, it requires the displacement of each oil hydraulic cylinder and the speed must be consistent in lifting process, so that lifting is steady.
Summary of the invention
For existing two post gantry lifting machines in the course of the work, speed, displacement that oil hydraulic cylinder rises and declines are difficult for synchronous problem, the invention provides a kind of two post gantry lifting machine flow divider-combiner synchronizing circuits, by adopting flow divider-combiner, and coordinate Pilot operated check valve, realize the synchronized movement of oil hydraulic cylinder.
For addressing the above problem, the present invention adopts following technological scheme.
A kind of two post gantry lifting machine flow divider-combiner synchronizing circuits, comprise fuel tank, oil hydraulic pump, relief valve, selector valve, oil hydraulic cylinder, Pilot operated check valve, flow divider-combiner, the import oil pipe of described oil hydraulic pump is connected with fuel tank, outlet oil pipe respectively with relief valve, selector valve is connected, described relief valve is connected fuel tank with the return tube of selector valve, described flow divider-combiner is connected with the B hydraulic fluid port of selector valve, described Pilot operated check valve is connected on being connected on oil circuit of oil hydraulic cylinder and flow divider-combiner, the oil circuit control of described Pilot operated check valve is connected on the A hydraulic fluid port of selector valve.
Described selector valve is 3-position 4-way solenoid directional control valve, and its Median Function is O type, and described flow divider-combiner is equivalent flow divider-combiner.
Than prior art, beneficial effect of the present invention is:
(1) the present invention adopts flow divider-combiner to realize synchronously, and when hydraulic cylinder piston rises, a minute flow throttle valve plays shunting action, and when hydraulic cylinder piston declines, a minute flow throttle valve plays afflux effect.Even if two oil hydraulic cylinders bear different loads, it still can realize speed synchronous with identical flow afflux or shunting, and centering capacity is strong.
(2) the present invention's Pilot operated check valve of connecting in loop, while preventing that hydraulic cylinder piston from stopping, making to alter oil by throttle orifice in flow divider-combiner because load is different, makes system more stable.
(3) the present invention is simple in structure, reasonable in design, is easy to manufacture.
Accompanying drawing explanation
Fig. 1 is hydraulic scheme of the present invention.
In figure: 1-fuel tank, 2-oil hydraulic pump, 3-relief valve, 4-selector valve, 5-oil hydraulic cylinder, 6-Pilot operated check valve, 7-flow divider-combiner.
Embodiment
Below in conjunction with accompanying drawing, describe the present invention.
As shown in Figure 1, two post gantry lifting machine flow divider-combiner synchronizing circuits comprise fuel tank 1, oil hydraulic pump 2, relief valve 3, selector valve 4, oil hydraulic cylinder 5, Pilot operated check valve 6, flow divider-combiner 7, the import oil pipe of described oil hydraulic pump 2 is connected with fuel tank 1, outlet oil pipe respectively with relief valve 3, selector valve 4 is connected, described relief valve 3 is connected fuel tank 1 with the return tube of selector valve 4, described flow divider-combiner 7 is connected with the B hydraulic fluid port of selector valve 4, described Pilot operated check valve 6 is connected on being connected on oil circuit of oil hydraulic cylinder 5 and flow divider-combiner 7, the oil circuit control of described Pilot operated check valve 6 is connected on the A hydraulic fluid port of selector valve 4.
Described selector valve 4 is 3-position 4-way solenoid directional control valve, and its Median Function is O type, and described flow divider-combiner 7 is equivalent flow divider-combiner.
embodiment 1
As shown in Figure 1, two post gantry lifting machine flow divider-combiner synchronizing circuits comprise fuel tank 1, oil hydraulic pump 2, relief valve 3, selector valve 4, oil hydraulic cylinder 5, Pilot operated check valve 6, flow divider-combiner 7, the import oil pipe of described oil hydraulic pump 2 is connected with fuel tank 1, outlet oil pipe respectively with relief valve 3, selector valve 4 is connected, described relief valve 3 is connected fuel tank 1 with the return tube of selector valve 4, described flow divider-combiner 7 is connected with the B hydraulic fluid port of selector valve 4, described Pilot operated check valve 6 is connected on being connected on oil circuit of oil hydraulic cylinder 5 and flow divider-combiner 7, the oil circuit control of described Pilot operated check valve 6 is connected on the A hydraulic fluid port of selector valve 4.
Described selector valve 4 is 3-position 4-way solenoid directional control valve, and its Median Function is O type, and described flow divider-combiner 7 is equivalent flow divider-combiner, and described oil hydraulic pump 2 adopts gear pump.
Claims (3)
1. a post gantry lifting machine flow divider-combiner synchronizing circuit, comprise fuel tank (1), oil hydraulic pump (2), relief valve (3), selector valve (4), oil hydraulic cylinder (5), Pilot operated check valve (6), flow divider-combiner (7), it is characterized in that, the import oil pipe of described oil hydraulic pump (2) is connected with fuel tank (1), outlet oil pipe respectively with relief valve (3), selector valve (4) is connected, the return tube of described relief valve (3) and selector valve (4) is connected fuel tank (1), described flow divider-combiner (7) is connected with the B hydraulic fluid port of selector valve (4), described Pilot operated check valve (6) is connected on being connected on oil circuit of oil hydraulic cylinder (5) and flow divider-combiner (7), the oil circuit control of described Pilot operated check valve (6) is connected on the A hydraulic fluid port of selector valve (4).
2. two post gantry lifting machine flow divider-combiner synchronizing circuits according to claim 1, is characterized in that, described selector valve (4) is 3-position 4-way solenoid directional control valve, and its Median Function is O type.
3. two post gantry lifting machine flow divider-combiner synchronizing circuits according to claim 1, is characterized in that, described flow divider-combiner (7) is equivalent flow divider-combiner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410475863.4A CN104196806A (en) | 2014-09-18 | 2014-09-18 | Synchronizing circuit of flow distributing and collecting valve for two-column gantry lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410475863.4A CN104196806A (en) | 2014-09-18 | 2014-09-18 | Synchronizing circuit of flow distributing and collecting valve for two-column gantry lifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104196806A true CN104196806A (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410475863.4A Pending CN104196806A (en) | 2014-09-18 | 2014-09-18 | Synchronizing circuit of flow distributing and collecting valve for two-column gantry lifter |
Country Status (1)
| Country | Link |
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| CN (1) | CN104196806A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947730A (en) * | 2015-07-20 | 2015-09-30 | 北华航天工业学院 | Excavator mechanical arm |
| CN104973143A (en) * | 2015-07-02 | 2015-10-14 | 江苏海鹏特种车辆有限公司 | Lift type movable top cover of trailer van |
| CN105967067A (en) * | 2016-07-26 | 2016-09-28 | 三汽车起重机械有限公司 | System for adjusting synchronous motion of oil cylinders, synchronous motion device and crane |
| CN107131164A (en) * | 2017-05-23 | 2017-09-05 | 上海应用技术大学 | The hydraulic control system and method for elevating mechanism |
| CN107191423A (en) * | 2017-05-19 | 2017-09-22 | 徐州工业职业技术学院 | A kind of hydraulic synchronization control loop |
| CN112196853A (en) * | 2020-11-05 | 2021-01-08 | 上海航天控制技术研究所 | Hydraulic energy control valve block |
| CN114162165A (en) * | 2020-09-10 | 2022-03-11 | 利勃海尔交通系统股份有限公司 | Active wheel set control device for railway vehicle |
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| JP2006300280A (en) * | 2005-04-25 | 2006-11-02 | Kobelco Cranes Co Ltd | Hydraulic cylinder circuit |
| CN201495049U (en) * | 2009-09-29 | 2010-06-02 | 四川建设机械（集团）股份有限公司 | Jacking actuating unit for stacker crane |
| CN202064326U (en) * | 2011-04-27 | 2011-12-07 | 扬州市飞龙气动液压设备有限公司 | Synchronous split hydraulic hoist |
| CN202402378U (en) * | 2011-12-27 | 2012-08-29 | 中国人民解放军63653部队 | Hydraulic circuit of hydraulic motor capable of automatically overcoming reactive torque |
| CN203247047U (en) * | 2013-05-09 | 2013-10-23 | 浙江工贸职业技术学院 | Hydraulic two-column lifting machine |
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2014
- 2014-09-18 CN CN201410475863.4A patent/CN104196806A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006300280A (en) * | 2005-04-25 | 2006-11-02 | Kobelco Cranes Co Ltd | Hydraulic cylinder circuit |
| CN201495049U (en) * | 2009-09-29 | 2010-06-02 | 四川建设机械（集团）股份有限公司 | Jacking actuating unit for stacker crane |
| CN202064326U (en) * | 2011-04-27 | 2011-12-07 | 扬州市飞龙气动液压设备有限公司 | Synchronous split hydraulic hoist |
| CN202402378U (en) * | 2011-12-27 | 2012-08-29 | 中国人民解放军63653部队 | Hydraulic circuit of hydraulic motor capable of automatically overcoming reactive torque |
| CN203247047U (en) * | 2013-05-09 | 2013-10-23 | 浙江工贸职业技术学院 | Hydraulic two-column lifting machine |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104973143A (en) * | 2015-07-02 | 2015-10-14 | 江苏海鹏特种车辆有限公司 | Lift type movable top cover of trailer van |
| CN104947730A (en) * | 2015-07-20 | 2015-09-30 | 北华航天工业学院 | Excavator mechanical arm |
| CN105967067A (en) * | 2016-07-26 | 2016-09-28 | 三汽车起重机械有限公司 | System for adjusting synchronous motion of oil cylinders, synchronous motion device and crane |
| CN107191423A (en) * | 2017-05-19 | 2017-09-22 | 徐州工业职业技术学院 | A kind of hydraulic synchronization control loop |
| CN107131164A (en) * | 2017-05-23 | 2017-09-05 | 上海应用技术大学 | The hydraulic control system and method for elevating mechanism |
| CN114162165A (en) * | 2020-09-10 | 2022-03-11 | 利勃海尔交通系统股份有限公司 | Active wheel set control device for railway vehicle |
| EP3967568B1 (en) | 2020-09-10 | 2022-12-21 | Liebherr-Transportation Systems GmbH & Co. KG | Active wheel set control for a railway vehicle |
| CN114162165B (en) * | 2020-09-10 | 2024-04-09 | 利勃海尔交通系统股份有限公司 | Active wheel set control device for rail vehicle |
| CN112196853A (en) * | 2020-11-05 | 2021-01-08 | 上海航天控制技术研究所 | Hydraulic energy control valve block |
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| PB01 | Publication | ||
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Application publication date: 20141210 |