CN101625002A - Hydraulic control system of lifting cylinders of mobile stage vehicle - Google Patents

Hydraulic control system of lifting cylinders of mobile stage vehicle Download PDF

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Publication number
CN101625002A
CN101625002A CN200810031771A CN200810031771A CN101625002A CN 101625002 A CN101625002 A CN 101625002A CN 200810031771 A CN200810031771 A CN 200810031771A CN 200810031771 A CN200810031771 A CN 200810031771A CN 101625002 A CN101625002 A CN 101625002A
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CN
China
Prior art keywords
valve
lifting cylinders
hydraulic control
links
self
Prior art date
Application number
CN200810031771A
Other languages
Chinese (zh)
Inventor
罗向君
Original Assignee
邵阳维克液压有限责任公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 邵阳维克液压有限责任公司 filed Critical 邵阳维克液压有限责任公司
Priority to CN200810031771A priority Critical patent/CN101625002A/en
Publication of CN101625002A publication Critical patent/CN101625002A/en

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Abstract

The invention relates to a hydraulic control system of lifting cylinders of a mobile stage vehicle, wherein a solenoid operated directional valve is connected with a one-way throttle valve, an big-small flow self-adjusting dividing and collecting valve, two small-flow self-adjusting dividing and collecting valves and a balance valve sequentially, wherein the balance valve is linked with the lifting cylinders. The hydraulic control system guarantees synchronous ascending and descending of the four lifting cylinders and high synchronous precision by using the self-adjusting dividing and collecting valves and ensures smooth operation and excellent pressure maintaining performance by using the balance valve.

Description

Hydraulic control system of lifting cylinders of mobile stage vehicle

Technical field

The present invention relates to a kind of hydraulic control system of lifting cylinders of mobile stage vehicle.

Background technique

The general synchronously employing current plate that four elevating rams of past mobile stage vehicle rise, descend adds series flow control valve to be controlled, and synchronization accuracy is lower, and regulates difficulty.Use the Pilot operated check valve pressurize, running stability was relatively poor when oil cylinder descended.

Summary of the invention

The purpose of this invention is to provide a kind of hydraulic control system of lifting cylinders of mobile stage vehicle that improves four elevating ram risings, decline synchronization accuracy and running stability.

Technological scheme of the present invention is achieved in that solenoid directional control valve of the present invention links to each other with one-way throttle valve, one-way throttle valve links to each other with big flow quantity self-adjusting formula flow divider-combiner, small flow autoregulating type distributing and collecting valve, the size combiner valve links to each other with equilibrium valve, and equilibrium valve links to each other with elevating ram.Pressure oil enters big flow quantity self-adjusting formula flow divider-combiner behind solenoid directional control valve, one-way throttle valve, fluid is equally divided into two groups and enters small flow self-regulated worker flow divider-combiner respectively, fluid is equally divided into four groups and enters elevating ram through equilibrium valve respectively, and four elevating rams are risen synchronously.Otherwise four elevating rams descend synchronously.

Advantage of the present invention is: realize that four elevating ram liftings are synchronous, and the synchronization accuracy height; Operate steadily; Equilibrium valve can make elevating ram steady lifting under the pressure oil effect also can be locked in the arbitrary position.

Description of drawings

Fig. 1 is a fundamental diagram of the present invention.

Embodiment

As shown in Figure 1, solenoid directional control valve 1a holds, pressure oil p enters big flow quantity self-adjusting formula flow divider-combiner 3 through solenoid directional control valve 1, one-way throttle valve 2, fluid is equally divided into two groups and enters small flow autoregulating type distributing and collecting valve 4 respectively, fluid is equally divided into four groups of rodless cavities that enter elevating ram 6 respectively through equilibrium valve 5, the rod chamber fluid of elevating ram 6 after solenoid directional control valve 1T flows back to fuel tank, rises four elevating rams 6 through one-way throttle valve 2 speed governing synchronously; Solenoid directional control valve 1b holds, pressure oil p enters the rod chamber of elevating ram 6 through solenoid directional control valve 1, one-way throttle valve 2, the rodless cavity fluid of elevating ram 6 after solenoid directional control valve 1T flows back to fuel tank, descends four elevating rams 6 through equilibrium valve 5, small flow autoregulating type distributing and collecting valve 4, big flow quantity self-adjusting formula flow divider-combiner 3, one-way throttle valve 2 speed governing synchronously.

Claims (1)

1, a kind of hydraulic control system of lifting cylinders of mobile stage vehicle, it is characterized in that: solenoid directional control valve (1) links to each other with one-way throttle valve (2), one-way throttle valve (2) links to each other with big flow quantity self-adjusting formula flow divider-combiner (3), big flow quantity self-adjusting formula flow divider-combiner (3) links to each other with small flow autoregulating type distributing and collecting valve (4), small flow autoregulating type distributing and collecting valve (4) links to each other with equilibrium valve (5), and equilibrium valve (5) links to each other with elevating ram (6).
CN200810031771A 2008-07-12 2008-07-12 Hydraulic control system of lifting cylinders of mobile stage vehicle CN101625002A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200810031771A CN101625002A (en) 2008-07-12 2008-07-12 Hydraulic control system of lifting cylinders of mobile stage vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200810031771A CN101625002A (en) 2008-07-12 2008-07-12 Hydraulic control system of lifting cylinders of mobile stage vehicle

Publications (1)

Publication Number Publication Date
CN101625002A true CN101625002A (en) 2010-01-13

Family

ID=41520949

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200810031771A CN101625002A (en) 2008-07-12 2008-07-12 Hydraulic control system of lifting cylinders of mobile stage vehicle

Country Status (1)

Country Link
CN (1) CN101625002A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102434512A (en) * 2011-12-14 2012-05-02 徐州重型机械有限公司 Hydraulic cylinder synchronization control loop and crane with same
CN102588365A (en) * 2012-03-13 2012-07-18 徐州重型机械有限公司 Double-cylinder synchronous control hydraulic system and engineering machinery
CN102581689A (en) * 2012-02-14 2012-07-18 上海三一精机有限公司 Elevating machine tool protection door and hydraulic control device thereof
CN102628459A (en) * 2012-04-12 2012-08-08 中联重科股份有限公司 Multi-oil-cylinder synchronous control system and engineering vehicle
CN102718110A (en) * 2012-06-29 2012-10-10 淄博瞳鸣机械有限公司 Novel building hoist
CN102767545A (en) * 2012-08-07 2012-11-07 安奥克斯汤姆逊(青岛)游艇有限公司 Four-cylinder synchronous hydraulic system
CN103539009A (en) * 2013-09-30 2014-01-29 华电郑州机械设计研究院有限公司 Special hanger
CN103601092A (en) * 2013-09-30 2014-02-26 郑州科润机电工程有限公司 Mechanical synchronizer of hydraulic winches
CN104314907A (en) * 2014-10-12 2015-01-28 郑州大学 Hydraulic system for jacking pipe
CN104925694A (en) * 2015-07-08 2015-09-23 安徽合力股份有限公司 Hydraulic lifting platform system capable of achieving synchronous oil cylinder lifting
CN105927604A (en) * 2016-06-17 2016-09-07 苏州青林自动化设备有限公司 Pneumatic circuit system used for large three-dimensional balance cylinder
CN103264132B (en) * 2013-05-17 2016-12-28 天津市天锻压力机有限公司 Mobile working platform hydraulic control system based on balanced valve
CN107165881A (en) * 2017-07-21 2017-09-15 徐州徐工液压件有限公司 A kind of function integrated-type large-tonnage tower crane jacking cylinder and control oil circuit
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

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102434512A (en) * 2011-12-14 2012-05-02 徐州重型机械有限公司 Hydraulic cylinder synchronization control loop and crane with same
CN102581689A (en) * 2012-02-14 2012-07-18 上海三一精机有限公司 Elevating machine tool protection door and hydraulic control device thereof
CN102581689B (en) * 2012-02-14 2015-04-15 上海三一精机有限公司 Elevating machine tool protection door and hydraulic control device thereof
CN102588365B (en) * 2012-03-13 2015-01-21 徐州重型机械有限公司 Double-cylinder synchronous control hydraulic system and engineering machinery
CN102588365A (en) * 2012-03-13 2012-07-18 徐州重型机械有限公司 Double-cylinder synchronous control hydraulic system and engineering machinery
CN102628459B (en) * 2012-04-12 2015-06-17 中联重科股份有限公司 Multi-oil-cylinder synchronous control system and engineering vehicle
CN102628459A (en) * 2012-04-12 2012-08-08 中联重科股份有限公司 Multi-oil-cylinder synchronous control system and engineering vehicle
CN102718110A (en) * 2012-06-29 2012-10-10 淄博瞳鸣机械有限公司 Novel building hoist
CN102767545A (en) * 2012-08-07 2012-11-07 安奥克斯汤姆逊(青岛)游艇有限公司 Four-cylinder synchronous hydraulic system
CN103264132B (en) * 2013-05-17 2016-12-28 天津市天锻压力机有限公司 Mobile working platform hydraulic control system based on balanced valve
CN103601092B (en) * 2013-09-30 2015-11-25 郑州科润机电工程有限公司 A kind of mechanical synchronizer of hydraulic wireline winch
CN103539009A (en) * 2013-09-30 2014-01-29 华电郑州机械设计研究院有限公司 Special hanger
CN103539009B (en) * 2013-09-30 2015-12-09 华电郑州机械设计研究院有限公司 A kind of special hanger of wind-powered electricity generation special hoisting equipment
CN103601092A (en) * 2013-09-30 2014-02-26 郑州科润机电工程有限公司 Mechanical synchronizer of hydraulic winches
CN104314907A (en) * 2014-10-12 2015-01-28 郑州大学 Hydraulic system for jacking pipe
CN104925694A (en) * 2015-07-08 2015-09-23 安徽合力股份有限公司 Hydraulic lifting platform system capable of achieving synchronous oil cylinder lifting
CN105927604A (en) * 2016-06-17 2016-09-07 苏州青林自动化设备有限公司 Pneumatic circuit system used for large three-dimensional balance cylinder
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
CN107165881A (en) * 2017-07-21 2017-09-15 徐州徐工液压件有限公司 A kind of function integrated-type large-tonnage tower crane jacking cylinder and control oil circuit
CN107165881B (en) * 2017-07-21 2019-03-15 徐州徐工液压件有限公司 A kind of function integrated-type large-tonnage tower crane jacking cylinder and control oil circuit

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Open date: 20100113

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