CN103867507B - A kind of device of the tested hydraulic system offer load being oil cylinder for outfan - Google Patents

A kind of device of the tested hydraulic system offer load being oil cylinder for outfan Download PDF

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Publication number
CN103867507B
CN103867507B CN201410096217.7A CN201410096217A CN103867507B CN 103867507 B CN103867507 B CN 103867507B CN 201410096217 A CN201410096217 A CN 201410096217A CN 103867507 B CN103867507 B CN 103867507B
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valve
hydraulic
electromagnetic directional
fluid port
way electromagnetic
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CN103867507A (en
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陈阳
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Shanghai Electric Hydraulics and Pneumatics Co Ltd
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Shanghai Electric Hydraulics and Pneumatics Co Ltd
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Abstract

The device of a kind of tested hydraulic system offer load being oil cylinder for outfan of disclosure, provides mechanism including hydraulic power supply, load;Wherein, load provides mechanism to include the first three-position four-way electromagnetic directional valve, the second three-position four-way electromagnetic directional valve, the second overflow valve, the 3rd overflow valve, the 3rd choke valve, the 4th choke valve and loading cylinders;Described hydraulic power supply is connected to a hydraulic fluid port of described first three-position four-way electromagnetic directional valve;The c hydraulic fluid port of described first three-position four-way electromagnetic directional valve connects a hydraulic fluid port of the second three-position four-way electromagnetic directional valve, the c hydraulic fluid port of described second three-position four-way electromagnetic directional valve connects the import of the second overflow valve, the second hydraulic control one-way valve and the 3rd choke valve, and described 3rd choke valve connects the indentation side hydraulic fluid port of loading cylinders again.Present invention achieves the tested hydraulic system being oil cylinder for outfan when testing and load is provided, provide conveniently to the test of the tested hydraulic system that outfan is oil cylinder.

Description

A kind of device of the tested hydraulic system offer load being oil cylinder for outfan
Technical field
The present invention relates to a kind of hydraulic test bench, the device of a kind of tested hydraulic system offer load being oil cylinder for outfan is be provided.
Background technology
At present, hydraulic technique is widely used in every field.Hydraulic Elements, the equipment produced are required for testing, and such as hydraulic jack needs test, hydraulic motor to need test, is also required to test including some hydraulically powered wind-powered electricity generations.When to outfan being the tested hydraulic pressure system test of oil cylinder, need to provide load to tested hydraulic system, but current hydraulic test bench lacks the device of the tested hydraulic system offer load being oil cylinder for outfan, and the test of the tested hydraulic system causing outfan to be oil cylinder is very inconvenient.
Summary of the invention
The technical problem to be solved is to provide a kind of hydraulic jack test system, with the deficiency overcoming prior art to exist.
In order to solve above-mentioned technical problem, the present invention adopts the following technical scheme that:
A kind of device of the tested hydraulic system offer load being oil cylinder for outfan, it is characterised in that: include hydraulic power supply, load provides mechanism;
Wherein, load provides mechanism to include the first three-position four-way electromagnetic directional valve, the second three-position four-way electromagnetic directional valve, the second overflow valve, the 3rd overflow valve, the 3rd choke valve, the 4th choke valve and loading cylinders;
Described hydraulic power supply is connected to a hydraulic fluid port of described first three-position four-way electromagnetic directional valve;The c hydraulic fluid port of described first three-position four-way electromagnetic directional valve connects a hydraulic fluid port of the second three-position four-way electromagnetic directional valve, the c hydraulic fluid port of described second three-position four-way electromagnetic directional valve connects the import of the second overflow valve, the second hydraulic control one-way valve and the 3rd choke valve, and described 3rd choke valve connects the indentation side hydraulic fluid port of loading cylinders again;The b hydraulic fluid port of described first three-position four-way electromagnetic directional valve is communicated to fuel tank, the d hydraulic fluid port of described first three-position four-way electromagnetic directional valve connects the b hydraulic fluid port of described second three-position four-way electromagnetic directional valve, the d hydraulic fluid port connection import of the 3rd overflow valve of described second three-position four-way electromagnetic directional valve, the 4th check valve and the 4th choke valve, what the 4th choke valve connected oil cylinder again stretches out side hydraulic fluid port;Described second hydraulic control one-way valve connects C6 joint, and described 4th check valve connects C5 joint;The piston rod of described oil cylinder is connected to displacement transducer;
The outlet of described second overflow valve and the outlet of described 3rd overflow valve are communicated to fuel tank again.
Described hydraulic power supply includes the oil pump of motor-driven, the first check valve, second throttle and the 3rd check valve;The oil-in connection fuel tank of described oil pump, the oil-out of described oil pump is connected to the 3rd check valve through the first check valve, second throttle, and described 3rd check valve is connected to a hydraulic fluid port of described first three-position four-way electromagnetic directional valve;First throttle valve and first overflow valve of parallel connection it is also associated with between described first check valve and fuel tank.
Described hydraulic power supply includes oil pump, also includes the first hydraulic control one-way valve, X9 oil-out, oil return opening, cooler and filter;Described first check valve connects described first hydraulic control one-way valve, and described first hydraulic control one-way valve connection X9 oil-out, described oil return opening connects fuel tank through described cooler with filter successively.
Described hydraulic power supply also includes hand oil pump, the second check valve, described fuel tank through hand oil pump, the second check valve described first hydraulic control one-way valve of connection.
Described 3rd check valve is also communicated to accumulator.
Adopt technique scheme, present invention achieves the tested hydraulic system being oil cylinder for outfan when testing and load is provided, provide conveniently to the test of the tested hydraulic system that outfan is oil cylinder.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail:
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
As it is shown in figure 1, the hydraulic jack test system of the present invention includes hydraulic power supply 100, load provides mechanism 200.
Wherein, load provides mechanism 200 to include the first three-position four-way electromagnetic directional valve the 141, second three-position four-way electromagnetic directional valve the 140, second overflow valve the 110.2, the 3rd overflow valve the 110.3, the 3rd choke valve the 100.3, the 4th choke valve 100.4 and loading cylinders 170.
The c hydraulic fluid port of the first three-position four-way electromagnetic directional valve 141 connects a hydraulic fluid port of the second three-position four-way electromagnetic directional valve 140, and the c hydraulic fluid port of the second three-position four-way electromagnetic directional valve 140 connects the import of the second overflow valve 110.2, the second hydraulic control one-way valve 260.2 and the 3rd choke valve 100.3.3rd choke valve 100.3 connects the indentation side hydraulic fluid port of loading cylinders 170 again.
The cooled device 240 of b hydraulic fluid port of the first three-position four-way electromagnetic directional valve 141, filter 80 are communicated to fuel tank 10.
The d hydraulic fluid port of the first three-position four-way electromagnetic directional valve 141 connects the b hydraulic fluid port of the second three-position four-way electromagnetic directional valve 140, d hydraulic fluid port the connection import of the 3rd overflow valve 110.3, the 4th check valve 90.4 and the 4th choke valve 100.4 of the second three-position four-way electromagnetic directional valve 140, what the 4th choke valve 100.4 connected loading cylinders 170 again stretches out side hydraulic fluid port;The piston rod of loading cylinders 170 is connected to displacement transducer 180.
Second hydraulic control one-way valve 260.2 is communicated to C6 joint, and the 4th check valve 90.4 connects C5 joint.
The outlet of the second overflow valve 110.2 and the outlet of the 3rd overflow valve 110.3 are communicated to fuel tank 10 again.
Hydraulic power supply 100 includes oil pump the 70, first check valve 90.1, second throttle 100.2 and the 3rd check valve 90.3 that motor 80 drives.Wherein, the oil-in connection fuel tank 10 of oil pump 70, the oil-out of oil pump 70 is connected to the 3rd check valve 90.3 through the first check valve 90.1, second throttle 100.2.3rd check valve 90.3 is connected to a hydraulic fluid port of the first three-position four-way electromagnetic directional valve 141;First throttle valve 100.1 and first overflow valve 110.1 of parallel connection it is also associated with between outlet and the fuel tank 10 of the first check valve 90.1.The outlet of the first check valve 90.1 is also respectively connected to the first hydraulic control one-way valve the 260.1, the 9th check valve 90.9 and Pressure gauge 120, and this first hydraulic control one-way valve 260.1 is connected to X9 oil-out, and the 9th check valve 90.9 is connected to C7 joint.
Hydraulic power supply 100 also includes hand oil pump the 150, second check valve 90.2.Fuel tank 10 connects the first hydraulic control one-way valve 260.1 through hand oil pump the 150, second check valve 90.2.3rd check valve 90.3 is also communicated to accumulator 160.
The cooled device 240 of oil return opening 101, filter 80 connect fuel tank 10.
Being exactly more than the hydraulic jack test system of the present invention, its working method is as follows:
This equipment can provide load for the tested hydraulic system that outfan is oil cylinder, and choose suitable oil cylinder as required to provide constant thrust, can also measuring the real-time pressure situation of this tested oil cylinder in test process in time and stretch out the speed of piston rod in load conditions, concrete method is as follows:
The outfan oil cylinder 170 of hydraulic system to be tested is connected with displacement transducer 180, the second overflow valve 110.2 and the 3rd overflow valve 110.3 are adjusted to uniform pressure value, select suitable pressure transducer to be respectively connecting to C5 joint and C6 joint.Start motor, make on the right side of the second three-position four-way electromagnetic directional valve 140 electric, make on the right side of the first three-position four-way electromagnetic directional valve 141 simultaneously also electric, make oil cylinder have a constant power to eject to the right all the time.After experiment terminates, then make on the left of the second three-position four-way electromagnetic directional valve 140 electric, make on the right side of the first three-position four-way electromagnetic directional valve 141 simultaneously also electric, oil cylinder retracts.
Pass through foregoing detailed description, it can be seen that present invention achieves the tested hydraulic system being oil cylinder for outfan when testing and load is provided, provide conveniently to the test of the tested hydraulic system that outfan is oil cylinder.
But; those skilled in the art will recognize that; above-mentioned detailed description of the invention is illustrative of; it is to better make to skilled artisans appreciate that this patent; it is not to be construed as the restriction to this patent protection domain; as long as any equivalent change made according to the disclosed spirit of this patent or modification, each fall within the scope of this patent protection.

Claims (5)

1. the device of the tested hydraulic system offer load that a kind is oil cylinder for outfan, it is characterised in that: include hydraulic power supply, load provides mechanism;
Wherein, load provides mechanism to include the first three-position four-way electromagnetic directional valve, the second three-position four-way electromagnetic directional valve, the second overflow valve, the 3rd overflow valve, the 3rd choke valve, the 4th choke valve and loading cylinders;
Described hydraulic power supply is connected to a hydraulic fluid port of described first three-position four-way electromagnetic directional valve;The c hydraulic fluid port of described first three-position four-way electromagnetic directional valve connects a hydraulic fluid port of the second three-position four-way electromagnetic directional valve, the c hydraulic fluid port of described second three-position four-way electromagnetic directional valve connects the import of the second overflow valve, the second hydraulic control one-way valve and the 3rd choke valve, and described 3rd choke valve connects the indentation side hydraulic fluid port of loading cylinders again;The b hydraulic fluid port of described first three-position four-way electromagnetic directional valve is communicated to fuel tank, the d hydraulic fluid port of described first three-position four-way electromagnetic directional valve connects the b hydraulic fluid port of described second three-position four-way electromagnetic directional valve, the d hydraulic fluid port connection import of the 3rd overflow valve of described second three-position four-way electromagnetic directional valve, the 4th check valve and the 4th choke valve, what the 4th choke valve connected oil cylinder again stretches out side hydraulic fluid port;Described second hydraulic control one-way valve connects C6 joint, and described 4th check valve connects C5 joint;The piston rod of described oil cylinder is connected to displacement transducer;
The outlet of described second overflow valve and the outlet of described 3rd overflow valve are communicated to fuel tank again.
2. the device of the tested hydraulic system offer load being oil cylinder for outfan according to claim 1, it is characterised in that: described hydraulic power supply includes the oil pump of motor-driven, the first check valve, second throttle and the 3rd check valve;The oil-in connection fuel tank of described oil pump, the oil-out of described oil pump is connected to the 3rd check valve through the first check valve, second throttle, and described 3rd check valve is connected to a hydraulic fluid port of described first three-position four-way electromagnetic directional valve;First throttle valve and first overflow valve of parallel connection it is also associated with between described first check valve and fuel tank.
3. the device of the tested hydraulic system offer load being oil cylinder for outfan according to claim 2, it is characterised in that: described hydraulic power supply also includes the first hydraulic control one-way valve, X9 oil-out, oil return opening, cooler and filter;Described first check valve connects described first hydraulic control one-way valve, and described first hydraulic control one-way valve connection X9 oil-out, described oil return opening connects fuel tank through described cooler with filter successively.
4. the device of the tested hydraulic system offer load being oil cylinder for outfan according to claim 3, it is characterised in that: described hydraulic power supply also includes hand oil pump, the second check valve, described fuel tank through hand oil pump, the second check valve described first hydraulic control one-way valve of connection.
5. the device of the tested hydraulic system offer load being oil cylinder for outfan according to claim 4, it is characterised in that: described 3rd check valve is also communicated to accumulator.
CN201410096217.7A 2014-03-14 2014-03-14 A kind of device of the tested hydraulic system offer load being oil cylinder for outfan Active CN103867507B (en)

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* Cited by examiner, † Cited by third party
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DE102014226617A1 (en) * 2014-12-19 2016-06-23 Robert Bosch Gmbh Drive control device for an electro-hydraulic drive

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL159393B1 (en) * 1989-03-30 1992-12-31 Hydraulic system of the tedting stamd for servo-motors
DE19517305C1 (en) * 1995-05-02 1996-09-26 Schmidt & Co Gmbh Kranz Dynamic pulse testing device for fluid circuit component
CN2668906Y (en) * 2003-12-19 2005-01-05 中国铝业股份有限公司 Hydraulic equipment detecting-experiment bench
CN202174208U (en) * 2011-08-11 2012-03-28 浙江大学城市学院 Hydraulic circuit of rolling and riveting system
CN203348219U (en) * 2013-06-09 2013-12-18 上海汇益控制系统股份有限公司 Hydraulic cylinder testing device
CN203809385U (en) * 2014-03-14 2014-09-03 上海电气液压气动有限公司 Device for providing loads for tested hydraulic system with oil cylinder as output end

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL159393B1 (en) * 1989-03-30 1992-12-31 Hydraulic system of the tedting stamd for servo-motors
DE19517305C1 (en) * 1995-05-02 1996-09-26 Schmidt & Co Gmbh Kranz Dynamic pulse testing device for fluid circuit component
CN2668906Y (en) * 2003-12-19 2005-01-05 中国铝业股份有限公司 Hydraulic equipment detecting-experiment bench
CN202174208U (en) * 2011-08-11 2012-03-28 浙江大学城市学院 Hydraulic circuit of rolling and riveting system
CN203348219U (en) * 2013-06-09 2013-12-18 上海汇益控制系统股份有限公司 Hydraulic cylinder testing device
CN203809385U (en) * 2014-03-14 2014-09-03 上海电气液压气动有限公司 Device for providing loads for tested hydraulic system with oil cylinder as output end

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