CN105156370A - Hydraulic source for testing system - Google Patents
Hydraulic source for testing system Download PDFInfo
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- CN105156370A CN105156370A CN201510602562.8A CN201510602562A CN105156370A CN 105156370 A CN105156370 A CN 105156370A CN 201510602562 A CN201510602562 A CN 201510602562A CN 105156370 A CN105156370 A CN 105156370A
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- pipeline
- pump group
- hydraulic pump
- oil hydraulic
- oil
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Abstract
The invention relates to a hydraulic source for a testing system, which comprises a hydraulic unit, an energy storage unit, a controller and a servo valve for connecting with a hydraulic execution end, wherein the hydraulic unit and energy storage unit are combined to supply oil to the servo valve. The hydraulic source adopts modular design, and each module can work independently. When the hydraulic unit and energy storage unit are in the combined working state, the maximum flow demand for testing can be satisfied; and when the test demanded flow is lower, the oil can be supplied only by the hydraulic unit. The energy storage unit is provided with a plug-in pressure relief valve and a pressure sensor, and the controller can be utilized to control the release of the pressure and pressure energy in the energy storage unit. The hydraulic source can implement multiple working conditions.
Description
Technical field
The present invention relates to a kind of hydraulic pressure installation, be specifically related to a kind of hydraulic power for pilot system.
Background technique
Current domestic testing machine load capability is increasing, control device more and more, detecting method is more various, the requirement of testing machine hydraulic power is got more and more, because the energy is very in short supply, so want economical, effectively utilize hydraulic power, meanwhile, the impact that will cause surrounding environment is little as much as possible.Such as, some test needs testing machine to provide the burst of of short duration but more large discharge, and this has higher requirement to the performance index of hydraulic power.
Summary of the invention
The technical problem to be solved in the present invention is: propose a kind of needs that both can meet multifunction test system, the hydraulic power little again to surrounding environment influence.
The present invention is the technological scheme solving the problems of the technologies described above proposition: a kind of pilot system hydraulic power, comprise hydraulic unit, Storage Unit, controller and the servovalve for being connected hydraulic pressure actuating station, described hydraulic unit and Storage Unit associating fuel feeding are to described servovalve;
Described hydraulic unit comprises the first oil hydraulic pump group of the first pipeline for being connected to described servovalve and at least two groups, and the first oil hydraulic pump group of described at least two groups is connected in parallel on described first pipeline;
Described Storage Unit comprising the second pipeline, stop valve for being connected to described servovalve, organizing accumulator, the 3rd pipeline and the second oil hydraulic pump group more, described many group accumulators are connected in parallel on the 3rd pipeline, described second oil hydraulic pump group be connected to described 3rd pipeline for for described accumulator oil-filled, one end of described second pipeline is connected to the side of described stop valve, the other end of described second pipeline is connected to described servovalve, and the opposite side of described stop valve is connected to described 3rd pipeline;
Also comprise the pilot line be connected between described second oil hydraulic pump group and the pilot stage of described servovalve, described first oil hydraulic pump group, the second oil hydraulic pump group, accumulator and stop valve are all controlled by described controller.
Further, described first oil hydraulic pump group and described second oil hydraulic pump group include the motor of fuel tank, constant pressure variable displacement pump, the described constant pressure variable displacement pump of driving, described constant pressure variable displacement pump are connected with high pressure filter, silencing apparatus;
Described fuel tank is provided with liquid level relay, temperature transducer, air-strainer, described fuel tank is also connected with return filter and cooling unit;
Described high pressure filter and return filter are equipped with differential pressure pickup, and the signal transmission of described differential pressure pickup, liquid level relay, temperature transducer is to the signal input part of described controller, and described cooling unit is controlled by described controller.
Further, the joint often organizing accumulator and described 3rd pipeline is equipped with plug-in mounting reduction valve, described 3rd pipeline is provided with pressure transducer, cut-off valve is provided with between described second oil hydraulic pump group and described 3rd pipeline, the signal transmission of described pressure transducer is to the signal input part of described controller, and described plug-in mounting reduction valve and cut-off valve are controlled by described controller.
Further, described cooling unit is made up of coolant pump, water cooling heat exchanger and cooling motor, described water cooling heat exchanger is provided with electric butterfly valve, and described controller has cooling unit control module, and described cooling motor and electric butterfly valve are controlled by described cooling unit control module.
Further, described accumulator has inflatable chamber, and the inflatable chamber of described many group accumulators is communicated with by tracheae.
Further, described first pipeline comprises fuel supply line and return tube, and be provided with high-pressure ball valve between the oil outlet of described first oil hydraulic pump group and fuel supply line, be provided with butterfly valve between the return opening of the first oil hydraulic pump group and return tube, described butterfly valve is provided with position limit switch.
Further, described controller has fault detection module and display modular.
Further, many groups the first oil hydraulic pump group and described second oil hydraulic pump group are installed in anechoic chamber, and described motor bottom is provided with soundproof material.
The invention has the beneficial effects as follows:
Hydraulic power in the present invention adopts modular design, and each module all can work independently.The peak rate of flow demand of test can be met when hydraulic unit and Storage Unit joint work, when test needs to ask flow less, can only by hydraulic unit work fuel feeding.Storage Unit has plug-in mounting reduction valve and pressure transducer, can be controlled the release of pressure in Storage Unit and pressure energy by controller.Hydraulic power in the present invention can realize various working, wherein a kind of working condition requirement peak rate of flow 48000L/min, time 14s; Rest working conditions flow is not more than 2800L/min.
In addition, controller combined sensor cohort can realize automatically adjusting flow and autobalance each operation of oil pump time on demand.When system pressure is improper be reduced to below 70% rated pressure time, autostop, malfunction alarm.Controller is arranged according to the operating time reasonable arrangement of each pumping plant and is run.The functions such as real-time monitoring system working pressure, oil temperature, fuel head, the safety protection functions such as automatic alarm and oil liquid leakage autostop such as oil pressure, high oil temperature, pasta are too low, oil purifier blocking.The enough Controlled cooling system work of controller, automatically opens according to oil temperature change or closes cooling system, reaching the object of stable oil temperature.
Be provided with the high pressure filter of filter precision 3 μ, fuel tank is provided with the return filter of filter precision 10 μ, can ensure that contamination level of oil liquid grade is better than NASA6 level after circulation flushing.Filter is furnished with differential pressure pickup, sends oil purifier jam signal when pressure difference reaches 0.3MPa, controller sends warning message after obtaining this signal.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, pilot system hydraulic power of the present invention is described further.
Fig. 1 is the structural representation of pilot system hydraulic power in the present invention;
Fig. 2 is the structural representation of first, second oil hydraulic pump group;
Fig. 3 is the structured flowchart of pilot system hydraulic power in Fig. 1.
Embodiment
Embodiment
According to Fig. 1, the pilot system hydraulic power in the present invention, comprises hydraulic unit, Storage Unit, controller 99 and the servovalve for being connected hydraulic pressure actuating station.Hydraulic unit and Storage Unit associating fuel feeding are to servovalve.
Wherein, controller 99 also includes cooling unit control module, fault detection module and display modular.
Wherein, hydraulic unit comprises the first pipeline 1 and three group of first oil hydraulic pump group, 2, three group of first oil hydraulic pump group 2 is connected in parallel on the first pipeline 1, and the first pipeline 1 is for being connected to servovalve.Three group of first oil hydraulic pump group 2 exports high pressure liquid force feed, arrives hydraulic pressure actuating station by the first pipeline 1 and servovalve, promotes hydraulic pressure actuating station and does compulsory exercise.In varied situations, aforementioned three groups also can be two groups or four groups etc.
As shown in Figure 2, the first oil hydraulic pump group 2 comprises the motor 5 of fuel tank 3, constant pressure variable displacement pump 4, driving constant pressure variable displacement pump 4, constant pressure variable displacement pump 4 is connected with high pressure filter 6, silencing apparatus 7.Fuel tank 3 is provided with liquid level relay 8, temperature transducer 9, air-strainer 10, fuel tank 3 is also connected with return filter 11 and cooling unit.High pressure filter 6 and return filter 11 are equipped with differential pressure pickup.The signal transmission of differential pressure pickup, liquid level relay 8, temperature transducer 9 is to the signal input part of controller 99.Aforementioned cooling unit is made up of coolant pump 12, water cooling heat exchanger 13 and cooling motor 14, and water cooling heat exchanger 13 is provided with electric butterfly valve, and cooling motor 14 and electric butterfly valve are controlled by cooling unit control module.Cooling motor 14 drives coolant pump 12, and the hydraulic oil in fuel tank 3 is transported in water cooling heat exchanger 13 by coolant pump 12, and hydraulic oil cools by water cooling heat exchanger 13.
First pipeline 1 comprises fuel supply line and return tube, can be used as preferably: be provided with high-pressure ball valve between the oil outlet of the first oil hydraulic pump group 2 and fuel supply line, and be provided with butterfly valve between the return opening of the first oil hydraulic pump group 2 and return tube, butterfly valve is provided with position limit switch.When butterfly valve is not opened, the oil hydraulic pump group of its correspondence can not start, and can work independently or keep in repair to realize often organizing oil hydraulic pump group.
High pressure filter 6 is for the impurity in filtered fluid force feed; Position signal, for measuring the position of fuel tank 3 inner fluid, is fed back to controller 99 by liquid level relay 8; Fuel tank 3 is for storing hydraulic oil; Air-strainer 10 is for the impurity in filtered air; Return filter 11 is for the impurity in filtered fluid force feed.
Temperature transducer 9 for measuring the temperature of fuel tank 3 inner fluid, by signal feed back to controller 99.The temperature of hydraulic oil can be controlled between 38 DEG C ~ 50 DEG C by the start and stop of controlled cooling model motor 14 and the switch (cooling water break-make) of electric butterfly valve, shut down more than 54 DEG C of system alarms, to obtain the best hydraulic oil life-span, ensure system worked well.
Wherein, Storage Unit comprises the second pipeline 15, stop valve 16,48 groups of accumulators 17, the 3rd pipeline 18 and the second oil hydraulic pump group 19 for being connected to servovalve, 48 groups of accumulators 17 are connected in parallel on the 3rd pipeline 18, the second oil hydraulic pump group 19 by accumulator 17 oil feed line be connected to the 3rd pipeline 18 for for accumulator 17 oil-filled.The structure of the second oil hydraulic pump group 19 is identical with the structure of the first oil hydraulic pump group 2.In varied situations, aforementioned 48 groups also can be many groups of other numerical value.
One end of second pipeline 15 is connected to the side of stop valve 16, and the other end of the second pipeline 15 is connected to servovalve, and the opposite side of stop valve 16 is connected to the 3rd pipeline 18.Also comprise the pilot line 21 be connected between the second oil hydraulic pump group 19 and the pilot stage of servovalve, stop valve 16 is controlled by controller 99.
As shown in Figure 3, the joint often organizing accumulator 17 and the 3rd pipeline 18 is equipped with plug-in mounting reduction valve 20,3rd pipeline 18 is provided with pressure transducer 23, cut-off valve 22 is provided with between second oil hydraulic pump group 19 and the 3rd pipeline 18, the signal transmission of pressure transducer 23 is to the signal input part of controller 99, and plug-in mounting reduction valve 20 and cut-off valve 22 are controlled by controller 99.
Can be used as preferably: accumulator 17 has inflatable chamber, the inflatable chamber of aforementioned 48 groups of accumulators 17 is communicated with into a large inflatable chamber by tracheae.Just carry out oil-filled to part accumulator 17 when oil-filled, other accumulator 17 is then only used to store pressed gas.
In order to reduce noise level, can be used as preferably: many groups the first oil hydraulic pump group 2 and the second oil hydraulic pump group 19 are installed in anechoic chamber, are provided with soundproof material bottom motor 5.
Can be used as preferably: controller 99 is PLC.
Of the present inventionly be not limited to above-described embodiment, the technological scheme of each embodiment above-mentioned of the present invention combined crosswise can form new technological scheme each other, and all employings are equal to the technological scheme of replacing and being formed in addition, all drop in the protection domain of application claims.
Claims (10)
1. a pilot system hydraulic power, is characterized in that: comprise hydraulic unit, Storage Unit, controller and the servovalve for being connected hydraulic pressure actuating station, and described hydraulic unit and Storage Unit associating fuel feeding are to described servovalve;
Described hydraulic unit comprises the first oil hydraulic pump group of the first pipeline for being connected to described servovalve and at least two groups, and the first oil hydraulic pump group of described at least two groups is connected in parallel on described first pipeline;
Described Storage Unit comprising the second pipeline, stop valve for being connected to described servovalve, organizing accumulator, the 3rd pipeline and the second oil hydraulic pump group more, described many group accumulators are connected in parallel on the 3rd pipeline, described second oil hydraulic pump group be connected to described 3rd pipeline for for described accumulator oil-filled, one end of described second pipeline is connected to the side of described stop valve, the other end of described second pipeline is connected to described servovalve, and the opposite side of described stop valve is connected to described 3rd pipeline;
Also comprise the pilot line be connected between described second oil hydraulic pump group and the pilot stage of described servovalve, described first oil hydraulic pump group, the second oil hydraulic pump group, accumulator and stop valve are all controlled by described controller.
2. pilot system hydraulic power according to claim 1, it is characterized in that: described first oil hydraulic pump group and described second oil hydraulic pump group include the motor of fuel tank, constant pressure variable displacement pump, the described constant pressure variable displacement pump of driving, described constant pressure variable displacement pump are connected with high pressure filter, silencing apparatus;
Described fuel tank is provided with liquid level relay, temperature transducer, air-strainer, described fuel tank is also connected with return filter and cooling unit;
Described high pressure filter and return filter are equipped with differential pressure pickup, and the signal transmission of described differential pressure pickup, liquid level relay, temperature transducer is to the signal input part of described controller, and described cooling unit is controlled by described controller.
3. pilot system hydraulic power according to claim 1 or 2, it is characterized in that: the joint often organizing accumulator and described 3rd pipeline is equipped with plug-in mounting reduction valve, described 3rd pipeline is provided with pressure transducer, cut-off valve is provided with between described second oil hydraulic pump group and described 3rd pipeline, the signal transmission of described pressure transducer is to the signal input part of described controller, and described plug-in mounting reduction valve and cut-off valve are controlled by described controller.
4. pilot system hydraulic power according to claim 2, it is characterized in that: described cooling unit is made up of coolant pump, water cooling heat exchanger and cooling motor, described water cooling heat exchanger is provided with electric butterfly valve, described controller has cooling unit control module, and described cooling motor and electric butterfly valve are controlled by described cooling unit control module.
5. pilot system hydraulic power according to claim 1 or 2, is characterized in that: described accumulator has inflatable chamber, and the inflatable chamber of described many group accumulators is communicated with by tracheae.
6. pilot system hydraulic power according to claim 3, is characterized in that: described accumulator has inflatable chamber, and the inflatable chamber of described many group accumulators is communicated with by tracheae.
7. pilot system hydraulic power according to claim 1 or 2, it is characterized in that: described first pipeline comprises fuel supply line and return tube, high-pressure ball valve is provided with between the oil outlet of described first oil hydraulic pump group and fuel supply line, be provided with butterfly valve between the return opening of the first oil hydraulic pump group and return tube, described butterfly valve is provided with position limit switch.
8. pilot system hydraulic power according to claim 3, it is characterized in that: described first pipeline comprises fuel supply line and return tube, high-pressure ball valve is provided with between the oil outlet of described first oil hydraulic pump group and fuel supply line, be provided with butterfly valve between the return opening of the first oil hydraulic pump group and return tube, described butterfly valve is provided with position limit switch.
9. pilot system hydraulic power according to claim 2, is characterized in that: described controller has fault detection module and display modular.
10. pilot system hydraulic power according to claim 2, is characterized in that: many groups the first oil hydraulic pump group and described second oil hydraulic pump group are installed in anechoic chamber, and described motor bottom is provided with soundproof material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510602562.8A CN105156370B (en) | 2015-09-21 | 2015-09-21 | Hydraulic source for testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510602562.8A CN105156370B (en) | 2015-09-21 | 2015-09-21 | Hydraulic source for testing system |
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| Publication Number | Publication Date |
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| CN105156370A true CN105156370A (en) | 2015-12-16 |
| CN105156370B CN105156370B (en) | 2017-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510602562.8A Active CN105156370B (en) | 2015-09-21 | 2015-09-21 | Hydraulic source for testing system |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3730141B2 (en) * | 2001-07-04 | 2005-12-21 | 住友重機械工業株式会社 | Hydraulic circuit |
| JP3752163B2 (en) * | 2001-07-10 | 2006-03-08 | 住友重機械工業株式会社 | Hydraulic circuit |
| CN101852220A (en) * | 2010-05-04 | 2010-10-06 | 中煤北京煤矿机械有限责任公司 | Controllable high-pressure high-flow generating device and control method thereof |
| CN201828418U (en) * | 2010-09-29 | 2011-05-11 | 上海高压油泵厂有限公司 | Hydraulic test system for horizontal dual-cylinder hydraulic machine |
| CN102829028A (en) * | 2012-09-25 | 2012-12-19 | 莱芜钢铁集团有限公司 | Oil supply system of hydraulic pump station and oil interruption loop of oil supply system |
| CN103321974A (en) * | 2012-03-24 | 2013-09-25 | 何荣志 | Novel energy-saving hydraulic station |
| CN104421225A (en) * | 2013-08-21 | 2015-03-18 | 哈尔滨智晟天诚科技开发有限公司 | Marine steering gear hydraulic loading test apparatus |
-
2015
- 2015-09-21 CN CN201510602562.8A patent/CN105156370B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3730141B2 (en) * | 2001-07-04 | 2005-12-21 | 住友重機械工業株式会社 | Hydraulic circuit |
| JP3752163B2 (en) * | 2001-07-10 | 2006-03-08 | 住友重機械工業株式会社 | Hydraulic circuit |
| CN101852220A (en) * | 2010-05-04 | 2010-10-06 | 中煤北京煤矿机械有限责任公司 | Controllable high-pressure high-flow generating device and control method thereof |
| CN201828418U (en) * | 2010-09-29 | 2011-05-11 | 上海高压油泵厂有限公司 | Hydraulic test system for horizontal dual-cylinder hydraulic machine |
| CN103321974A (en) * | 2012-03-24 | 2013-09-25 | 何荣志 | Novel energy-saving hydraulic station |
| CN102829028A (en) * | 2012-09-25 | 2012-12-19 | 莱芜钢铁集团有限公司 | Oil supply system of hydraulic pump station and oil interruption loop of oil supply system |
| CN104421225A (en) * | 2013-08-21 | 2015-03-18 | 哈尔滨智晟天诚科技开发有限公司 | Marine steering gear hydraulic loading test apparatus |
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| CN105156370B (en) | 2017-02-01 |
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Address after: 100037 No. three Li River Road, Beijing, Haidian District, 15 Patentee after: CHINA STATE CONSTRUCTION ENGINEERING Corp.,Ltd. Patentee after: China Construction Engineering Industry Technology Research Institute Co.,Ltd. Address before: 100037 No. three Li River Road, Beijing, Haidian District, 15 Patentee before: CHINA STATE CONSTRUCTION ENGINEERING Corp.,Ltd. Patentee before: CHINA CONSTRUCTION-BAILI ENGINEERING TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Effective date of registration: 20221222 Address after: 101320 Building 1, No. 15, Linhe Street, Linhe Industrial Development Zone, Shunyi District, Beijing Patentee after: China Construction Engineering Testing (Beijing) Co.,Ltd. Patentee after: CHINA STATE CONSTRUCTION ENGINEERING Corp.,Ltd. Patentee after: China Construction Engineering Industry Technology Research Institute Co.,Ltd. Address before: 100037 No. three Li River Road, Beijing, Haidian District, 15 Patentee before: CHINA STATE CONSTRUCTION ENGINEERING Corp.,Ltd. Patentee before: China Construction Engineering Industry Technology Research Institute Co.,Ltd. |