CN101886640A - Manually adjustable low-pressure three-channel hydraulic drive system - Google Patents
Manually adjustable low-pressure three-channel hydraulic drive system Download PDFInfo
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- CN101886640A CN101886640A CN 201010215466 CN201010215466A CN101886640A CN 101886640 A CN101886640 A CN 101886640A CN 201010215466 CN201010215466 CN 201010215466 CN 201010215466 A CN201010215466 A CN 201010215466A CN 101886640 A CN101886640 A CN 101886640A
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Abstract
本发明提供的是一种手动可调式低压三通道液压驱动系统。包括三个双出杆液压缸；三个双出杆液压缸的油口分别并联电液伺服阀和手动换向阀的相应端口；在每个双出杆液压缸的油口油路上均安装有压力表和压力传感器，在靠近油口处还安装有截止阀；主压力回路同时连接三个电液伺服阀和三个手动换向阀的进油端；三个电液伺服阀和三个手动换向阀的回油端相互并联后连接回到油箱；主压力回路的供油端通过两路供油路与油箱相连，一路供油路由变量泵和异步电机构成、另一路由手摇泵构成。本发明可对每个通道进行独立控制，可对系统的运行状态进行实时监控，可以进行手动调试。
The invention provides a manually adjustable low-pressure three-channel hydraulic drive system. It includes three double-rod hydraulic cylinders; the oil ports of the three double-rod hydraulic cylinders are respectively connected in parallel with the corresponding ports of the electro-hydraulic servo valve and the manual reversing valve; Pressure gauge and pressure sensor, and a shut-off valve is installed near the oil port; the main pressure circuit is connected to the oil inlet of three electro-hydraulic servo valves and three manual reversing valves at the same time; three electro-hydraulic servo valves and three manual reversing valves The oil return ends of the reversing valve are connected in parallel and then connected back to the oil tank; the oil supply end of the main pressure circuit is connected to the oil tank through two oil supply lines, one oil supply route is composed of a variable pump and an asynchronous motor, and the other is composed of a hand pump . The invention can independently control each channel, can monitor the operating state of the system in real time, and can perform manual debugging.
Description
Technical field
The present invention relates to a kind of drive system, particularly a kind of hydraulic driving system.
Background technique
Hydraulic transmission is to use hydraulic oil as working medium, by power unit (oil pump), the mechanical energy of motor is transferred to the pressure energy of fluid, by pipeline, control original paper,, the pressure of fluid can be converted to mechanical energy by executive component, drive load, realize straight line or rotation motion.
In recent years, raising along with machine work precision, speed of response and automaticity, hydraulic control technology has been proposed more and more higher requirement, and hydraulic control technology also begins from applications such as traditional machinery, manipulation and power assisting devices to expand to fields such as Aero-Space, seabed operation and vehicle and engineering machinery (as analog loading device, motor fuel feeding control and rotating speed control, Vehicle Active Suspension device, wheel antilock braking system (ABS) and robot electrohydraulic servo system etc.).
Summary of the invention
The object of the present invention is to provide a kind ofly to have three autonomous channels, and the manual adjustable low-voltage three-way hydraulic drive system that can manually debug.
The object of the present invention is achieved like this: comprise three two rod oil hydraulic cylinders, the hydraulic fluid port difference electrohydraulic control in parallel of three two rod oil hydraulic cylinders and the corresponding port of hand-operated direction valve; On the hydraulic fluid port oil circuit of each two rod oil hydraulic cylinder, pressure gauge and pressure transducer are installed all, stop valve also are being installed near oil port; Main pressure loop connects the oil inlet end of three electrohydraulic controls and three hand-operated direction valves simultaneously; Three electrohydraulic controls are got back to fuel tank with being connected after the oil revolving end of three hand-operated direction valves is parallel with one another; The fuel feeding end of main pressure loop links to each other with fuel tank by two-way fuel feeding road, and one road fuel feeding route variable displacement pump and asynchronous motor constitute, another route manual pump constitutes.
The present invention can also comprise some features like this:
1, main pressure loop is provided with accumulator and relief valve.
2, each pressure spot in loop all has pressure gauge and pressure transducer.
3, air cooler and thick oil purifier are set on the oil revolving end of three electrohydraulic controls and three hand-operated direction valves and the oil circuit between the fuel tank.
Major advantage of the present invention is embodied in:
1, has three autonomous channels, can carry out independent control each passage;
2, each pressure spot in loop all has pressure gauge and pressure transducer, can monitor in real time the running state of system;
3, be equipped with manual pump and hand-operated direction valve, when the electrohydraulic control fault, can play emergencing action; Simultaneously, when being tested for the first time by the device of this system drive, available manual mode is carried out preliminary examination, avoids causing the damage to controlled device because the control strategy imperfection makes that this hydraulic system action is out of control.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
Embodiment
For example the present invention is done description in more detail below in conjunction with accompanying drawing:
In conjunction with the accompanying drawings, the composition of manual adjustable triple channel hydraulic system comprises: fuel tank 1, thick oil purifier 2, manual pump 3, asynchronous motor 4, variable displacement pump 5, one-way valve 6, relief valve 7, accumulator 8, stop valve 9, pressure gauge 10, electrohydraulic control 11, hand-operated direction valve 12, pressure transducer 13, displacement transducer 14, two rod oil hydraulic cylinder 15, air cooler 16, temperature transducer 17, smart oil purifier 18.
Motor 4 drives variable displacement pump 5 rotations, the filler opening of variable displacement pump 5 is equipped with thick oil purifier 2, the hydraulic oil that the thick oil purifier 2 of process that comes out from fuel tank 1 filters excessively is transported to main pressure loop by variable displacement pump 5, and the oil outlet of variable displacement pump 5 is equipped with one-way valve 6 and prevents that hydraulic oil from refluxing; The filler opening of manual pump 3 is equipped with thick oil purifier 2, and the hydraulic oil that the thick oil purifier 2 of process that comes out from fuel tank 1 filters excessively is transported to main pressure loop by manual pump 3, and the oil outlet of manual pump 3 is equipped with one-way valve 6 and prevents that hydraulic oil from refluxing; The filtration once more of the smart oil purifier 18 of process before the servovalve 11 of flowing through of the hydraulic oil in the main pressure loop; When system pressure surpassed setting pressure, the hydraulic oil in the main pressure loop was got back to fuel tank 1 through relief valve 7; Pressure instability in major loop regularly makes system stability by the accumulator 8 that directly is connected on the major loop, is connected by stop valve 9 between accumulator 8 and major loop; Pressure gauge 10 and pressure transducer also are installed on the main pressure loop; Main pressure loop connects the oil inlet end of three electrohydraulic controls 11 and three hand-operated direction valves 12 simultaneously; The oil revolving end of three electrohydraulic controls 11 and three hand-operated direction valves 12 is parallel with one another, and the no pressure hydraulic oil that returns is got back to fuel tank 1 after lowering the temperature by air cooler 16 again after thick oil purifier 2 filters; Each hydraulic fluid port difference electrohydraulic control 11 in parallel of oil hydraulic cylinder 15 and the corresponding port of hand-operated direction valve 12; On each hydraulic fluid port oil circuit of each oil cylinder 15, pressure gauge 10 and pressure transducer 13 are installed all, stop valve 9 also are installed at nearly oil port; On the piston rod of displacement transducer 14 installations and oil cylinder 15, be used to measure the displacement and the speed of piston; Temperature transducer 17 is installed on the sidewall of fuel tank 1, is used for measuring system oil temperature.
Working principle of the present invention is:
Asynchronous motor 4 drives variable displacement pump 5 rotations, and variable displacement pump 5 is drawn hydraulic oil by thick oil purifier 2 from fuel tank 1, and the hydraulic oil of being drawn is through being transported on the main pressure loop through smart oil purifier 18 through one-way valve 6 again; Manual pump 3 is drawn hydraulic oil by thick oil purifier 2 from fuel tank 1, and the hydraulic oil of being drawn is through being transported on the main pressure loop through smart oil purifier 18 through one-way valve 6 again; Accumulator 8 is used for stablizing major loop pressure, and relief valve 7 is used to control major loop pressure; Hydraulic oil on the main pressure loop can be controlled the motion of three two rod oil hydraulic cylinders 15 respectively by the control of electrohydraulic control 11 and hand-operated direction valve 12; Lower the temperature through air cooler 16 by the hydraulic oil that major loop discharges, after thick oil purifier 2 filters, get back to fuel tank again; Pressure gauge 10 is used to estimate the pressure of each node of pressure circuit; Pressure transducer 13 is used for the pressure of each node of measuring pressure loop; Temperature transducer 17 is used to monitor fuel tank oil temperature; Stop valve 9 can be closed each hydraulic channel respectively.
Main course of action of the present invention is as follows:
1, automatic mode
2, manual mode
Unclamp stop valve 9, make electrohydraulic control 11 get back to meta or make its outage, the oil pressure relief of relief valve 7 is set; Press manual pump 3, manual pump 3 is drawn hydraulic oil by thick oil purifier 2 from fuel tank 1, the hydraulic oil of being drawn is through being transported on the main pressure loop through smart oil purifier 18 through one-way valve 6 again, if the pressure of main pressure loop is greater than setting, then, make the system positioin setting pressure by relief valve 7 overflows; The opening direction of three hand-operated direction valves 12 of independent respectively control, the moving direction of three oil hydraulic cylinders 15 of control; Pressure gauge 10 and pressure transducer 13 are used for supervisory system pressure, and temperature transducer 17 is used for the monitoring system temperature.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010215466 CN101886640A (en) | 2010-07-02 | 2010-07-02 | Manually adjustable low-pressure three-channel hydraulic drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010215466 CN101886640A (en) | 2010-07-02 | 2010-07-02 | Manually adjustable low-pressure three-channel hydraulic drive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101886640A true CN101886640A (en) | 2010-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010215466 Pending CN101886640A (en) | 2010-07-02 | 2010-07-02 | Manually adjustable low-pressure three-channel hydraulic drive system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103650684A (en) * | 2012-08-28 | 2014-03-26 | 迪尔公司 | Implement with reduced hydraulic oil exchange |
| CN105673595A (en) * | 2016-03-28 | 2016-06-15 | 温岭市迪信勘察仪器有限公司 | Manual and electric integrated hydraulic control system for geotechnical engineering exploration |
| CN106351909A (en) * | 2016-08-30 | 2017-01-25 | 徐州重型机械有限公司 | Confluent switching system with multiple oil supply units |
| CN106884833A (en) * | 2017-04-17 | 2017-06-23 | 泸州市长江液压件装备有限公司 | A kind of hydraulic servo synchronization system |
| CN113309746A (en) * | 2021-06-09 | 2021-08-27 | 重庆零壹空间科技集团有限公司 | Rocket launching vehicle erecting hydraulic system with load adjusting function and adjusting method |
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| CN201288566Y (en) * | 2008-11-11 | 2009-08-12 | 浙江大学 | Energy-saving shield advance hydraulic system employing zone control |
| CN201320956Y (en) * | 2008-12-26 | 2009-10-07 | 山东交通学院 | Four-wheel fully-driven hydraulic hybrid power transmission device of bus |
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2010
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Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3913939A (en) * | 1973-07-02 | 1975-10-21 | Us Army | Variable height and variable spring rate suspension system |
| CN86107115A (en) * | 1986-03-31 | 1987-10-14 | 株式会社福岛制作所 | Hydraulic apparatus with constant pressure |
| CN2136730Y (en) * | 1991-09-18 | 1993-06-23 | 张林征 | Small size blending machine for mixing sand, mortar and concrete |
| US5335926A (en) * | 1992-03-18 | 1994-08-09 | Hoerbiger Ventilwerke Aktiengesellschaft | Hydraulic actuating apparatus for opening and closing a vehicle cover with auxiliary manual hydraulic pump |
| CN1139978A (en) * | 1994-12-08 | 1997-01-08 | 履带拖拉机股份有限公司 | Hydraulic flow priority system |
| CN1312741A (en) * | 1998-08-14 | 2001-09-12 | Sms舒路曼-斯玛公司 | Device for hydraulically adjusting rollers of strand guiding segments of continuous casting installation |
| CN1459534A (en) * | 2002-05-23 | 2003-12-03 | 株式会社小松制作所 | Hydraulic loop for working machine |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103650684A (en) * | 2012-08-28 | 2014-03-26 | 迪尔公司 | Implement with reduced hydraulic oil exchange |
| CN103650684B (en) * | 2012-08-28 | 2017-11-17 | 迪尔公司 | The instrument that hydraulic oil with reduction exchanges |
| CN105673595A (en) * | 2016-03-28 | 2016-06-15 | 温岭市迪信勘察仪器有限公司 | Manual and electric integrated hydraulic control system for geotechnical engineering exploration |
| CN106351909A (en) * | 2016-08-30 | 2017-01-25 | 徐州重型机械有限公司 | Confluent switching system with multiple oil supply units |
| CN106351909B (en) * | 2016-08-30 | 2018-08-21 | 徐州重型机械有限公司 | A kind of more oil supply unit interflow switching system |
| CN106884833A (en) * | 2017-04-17 | 2017-06-23 | 泸州市长江液压件装备有限公司 | A kind of hydraulic servo synchronization system |
| CN113309746A (en) * | 2021-06-09 | 2021-08-27 | 重庆零壹空间科技集团有限公司 | Rocket launching vehicle erecting hydraulic system with load adjusting function and adjusting method |
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Application publication date: 20101117 |