CN103967860A - Hydraulic synchronous control system for non-rigid structures - Google Patents
Hydraulic synchronous control system for non-rigid structures Download PDFInfo
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- CN103967860A CN103967860A CN201410159428.0A CN201410159428A CN103967860A CN 103967860 A CN103967860 A CN 103967860A CN 201410159428 A CN201410159428 A CN 201410159428A CN 103967860 A CN103967860 A CN 103967860A
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- oil cylinder
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Abstract
A hydraulic synchronous control system for non-rigid structures comprises a three-position four-way valve, a first oil cylinder and a second oil cylinder, and the first oil cylinder and the second oil cylinder are connected in series and then are connected with the three-position four-way valve. The small cavity of the first oil cylinder is connected with the large cavity of the second oil cylinder, and the cavity cross sectional area S1 of the small cavity of the first oil cylinder is equal to the cavity cross sectional area S2 of the large cavity of the second oil cylinder. According to the hydraulic synchronous control system for the non-rigid structures, the two oil cylinders which are connected in series and are equal in volumes of the large cavity and the small cavity can be controlled through the three-position four-way reversing valve, and the operation speed of piston rods can be synchronous. According to the hydraulic synchronous control system for the non-rigid structures, hydraulic synchronous control of two non-rigid light load components is achieved with the simplest and fastest modes, and the system is made to be safer and more reliable.
Description
Technical field
The present invention relates to the hydraulic synchronous control system of a kind of hydraulic control system, particularly a kind of non-rigid structure.
Background technique
Engineering mechanical device often can adopt non-rigid structure in operation process, for example, shovel for the excrement that pushes away of pasture excrement of animals cleaning, is respectively provided with respectively one can synchronously opens or closed guide plate in shovel body both sides.But can be because of the unbalanced load difference that causes left and right guide plate to bear of material of left and right carrying in the time of practical operation, common oil cylinder is connected in parallel each other, because the load difference of bearing can cause two oil cylinders asynchronous.
Two traditional non-rigid underloading member hydraulic synchronous control systems are by two Proportional valves or servovalve+displacement transducer or the realization of angle transducer+controller control oil cylinder stroke, hydraulic system complexity, and cost is high.
Summary of the invention
Goal of the invention: the object of this invention is to provide a kind of hydraulic synchronous control system that just can realize the synchronous non-rigid structure of oil cylinder stroke by common valve.
Technological scheme: a kind of hydraulic synchronous control system of non-rigid structure, comprise three-position four-way valve, the first oil cylinder and the second oil cylinder, described the first oil cylinder is connected with three-position four-way valve with after the second oil cylinder series connection; The loculus of described the first oil cylinder is connected with the large chamber of the second oil cylinder, and described the first oil cylinder loculus cavity cross-section area S1 equates with the second large chamber of oil cylinder cavity cross-section area S2.When after the protruding LAP of piston rod of the first oil cylinder, fluid in the first oil cylinder loculus enters the large chamber of the second oil cylinder, because the mutual cross-section area of the large loculus cavity of two oil cylinders of series connection equates, therefore also protruding identical stroke of the piston rod of the second oil cylinder; When in like manner piston rod is retracted, stroke also equates.
Beneficial effect: two oil cylinders that the large loculus volume that the present invention can connect by three position four-way directional control valve control equates, make piston rod motion speed synchronous, the present invention has realized the control of two non-rigid underloading member hydraulic synchronizations in the mode of simple and fast, makes system more safe and reliable.
Brief description of the drawings
Fig. 1 is hydraulic schematic diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, a kind of hydraulic synchronous control system of non-rigid structure, comprises three-position four-way valve 1, the first oil cylinder 2 and the second oil cylinder 3, and described the first oil cylinder 2 is connected with three-position four-way valve 1 with after the second oil cylinder 3 series connection; The loculus of described the first oil cylinder 2 is connected with the large chamber of the second oil cylinder 3, and described the first oil cylinder 2 loculus cavity cross-section area S1 equate with the large chamber cavity cross-section area S2 of the second oil cylinder 3.When after the protruding LAP of piston rod of the first oil cylinder 2, fluid in the first oil cylinder 2 loculuses enters the large chamber of the second oil cylinder 3, because the mutual cross-section area of the large loculus cavity of two oil cylinders of series connection equates, therefore also protruding identical stroke of the piston rod of the second oil cylinder 3; When in like manner piston rod is retracted, stroke also equates.
Claims (1)
1. a hydraulic synchronous control system for non-rigid structure, comprises three-position four-way valve (1), the first oil cylinder (2) and the second oil cylinder (3), it is characterized in that: described the first oil cylinder (2) is connected with three-position four-way valve (1) with after the second oil cylinder (3) series connection; The loculus of described the first oil cylinder (2) is connected with the large chamber of the second oil cylinder (3), and described the first oil cylinder (2) loculus cavity cross-section area S1 equates with the large chamber cavity cross-section area S2 of the second oil cylinder (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410159428.0A CN103967860A (en) | 2014-04-21 | 2014-04-21 | Hydraulic synchronous control system for non-rigid structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410159428.0A CN103967860A (en) | 2014-04-21 | 2014-04-21 | Hydraulic synchronous control system for non-rigid structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103967860A true CN103967860A (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410159428.0A Pending CN103967860A (en) | 2014-04-21 | 2014-04-21 | Hydraulic synchronous control system for non-rigid structures |
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| CN (1) | CN103967860A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488122A (en) * | 2018-03-30 | 2018-09-04 | 江苏恒立液压科技有限公司 | Multi-cylinder synchronization hydraulic system |
| CN110371893A (en) * | 2018-07-27 | 2019-10-25 | 哈威阿尔滕斯塔特控股有限公司 | Unmanned transportation system |
| WO2021022825A1 (en) * | 2019-08-08 | 2021-02-11 | 英达热再生有限公司 | Novel slurry mixing grouting system |
| CN112938831A (en) * | 2021-04-12 | 2021-06-11 | 合肥搬易通科技发展有限公司 | Front wheel synchronous rotation hydraulic system and forklift thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0242201A (en) * | 1988-08-01 | 1990-02-13 | Iseki & Co Ltd | Hydraulic device |
| CN1078772A (en) * | 1992-03-30 | 1993-11-24 | S·梅耶 | Hydraulic pressure installation with synchronous jacks |
| JPH07248005A (en) * | 1994-03-10 | 1995-09-26 | Shinmeiwa Auto Eng Kk | Hydraulic cylinder synchronizing device |
| US6526879B1 (en) * | 1997-06-02 | 2003-03-04 | Pryda (Aust.) Pty Ltd | Press |
| CN101865169A (en) * | 2010-06-09 | 2010-10-20 | 北京市三一重机有限公司 | Synchronous drive control system and engineering machinery |
| CN203248430U (en) * | 2013-04-24 | 2013-10-23 | 浙江工商职业技术学院 | Fast series-connection synchronizing circuit system |
| CN203822731U (en) * | 2014-04-21 | 2014-09-10 | 江苏柳工机械有限公司 | Nonrigid-structure hydraulic synchronization control system |
-
2014
- 2014-04-21 CN CN201410159428.0A patent/CN103967860A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0242201A (en) * | 1988-08-01 | 1990-02-13 | Iseki & Co Ltd | Hydraulic device |
| CN1078772A (en) * | 1992-03-30 | 1993-11-24 | S·梅耶 | Hydraulic pressure installation with synchronous jacks |
| JPH07248005A (en) * | 1994-03-10 | 1995-09-26 | Shinmeiwa Auto Eng Kk | Hydraulic cylinder synchronizing device |
| US6526879B1 (en) * | 1997-06-02 | 2003-03-04 | Pryda (Aust.) Pty Ltd | Press |
| CN101865169A (en) * | 2010-06-09 | 2010-10-20 | 北京市三一重机有限公司 | Synchronous drive control system and engineering machinery |
| CN203248430U (en) * | 2013-04-24 | 2013-10-23 | 浙江工商职业技术学院 | Fast series-connection synchronizing circuit system |
| CN203822731U (en) * | 2014-04-21 | 2014-09-10 | 江苏柳工机械有限公司 | Nonrigid-structure hydraulic synchronization control system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488122A (en) * | 2018-03-30 | 2018-09-04 | 江苏恒立液压科技有限公司 | Multi-cylinder synchronization hydraulic system |
| CN110371893A (en) * | 2018-07-27 | 2019-10-25 | 哈威阿尔滕斯塔特控股有限公司 | Unmanned transportation system |
| WO2021022825A1 (en) * | 2019-08-08 | 2021-02-11 | 英达热再生有限公司 | Novel slurry mixing grouting system |
| CN112938831A (en) * | 2021-04-12 | 2021-06-11 | 合肥搬易通科技发展有限公司 | Front wheel synchronous rotation hydraulic system and forklift thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20140806 |