CN108397445A - A kind of oil inlet oil return mechanism for hydraulic cylinder delivery test - Google Patents
A kind of oil inlet oil return mechanism for hydraulic cylinder delivery test Download PDFInfo
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- CN108397445A CN108397445A CN201810384653.2A CN201810384653A CN108397445A CN 108397445 A CN108397445 A CN 108397445A CN 201810384653 A CN201810384653 A CN 201810384653A CN 108397445 A CN108397445 A CN 108397445A
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- Prior art keywords
- oil
- oil inlet
- valve
- hydraulic cylinder
- pipe
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a kind of oil inlet oil return mechanisms for hydraulic cylinder delivery test, include oil inlet pipe and oil outlet pipe；Oil inlet pipe includes the reversal valve being connect with the oil outlet of fuel tank, the check valve that oil inlet is connect with reversal valve oil outlet, and the flowline being connected between the oil outlet of check valve and hydraulic cylinder；Oil outlet pipe includes the oil return pipe being connected between tank drainback mouth and hydraulic cylinder and the hydraulic control one-way valve that is set on oil return pipe.The present invention includes oil inlet pipe and oil return line so that the pipeline of oil inlet and oil return separates, and avoids the fluid of oil return from reentering hydraulic cylinder, improves the cleannes of test oil and reduce experiment oil temperature.
Description
Technical field
The present invention relates to hydraulic cylinder manufacturing field, specifically a kind of oil inlet oil return mechanism for hydraulic cylinder delivery test.
Background technology
Currently, hydraulic cylinder before manufacture, can carry out quality testing experiment, for the convenience and safety of experiment, often grasp
Make platform apart from hydraulic station farther out, causes oil pipe longer.And the fluid being discharged out of hydraulic cylinder will remain in these oil pipes, it is next
It remains fluid when secondary experiment to be filled with inside hydraulic cylinder repeatedly, one side fluid is dirtier, is unfavorable for ensureing the cleaning of hydraulic cylinder
Degree, on the other hand, oil pipe internal oil cannot cool down, and oil temperature is higher to be unfavorable for long run test, especially more to small-scale liquid cylinder pressure
It is apparent.
Invention content
The technical problem to be solved in the present invention is to provide a kind of oil inlet oil return mechanisms for hydraulic cylinder delivery test, including
There are oil inlet pipe and oil return line so that the pipeline of oil inlet and oil return separates, and avoids the fluid of oil return from reentering hydraulic cylinder, carries
The high cleannes of test oil simultaneously reduce experiment oil temperature.
The technical scheme is that：
A kind of oil inlet oil return mechanism for hydraulic cylinder delivery test includes oil inlet pipe and oil outlet pipe；Described
Oil inlet pipe includes the reversal valve being connect with the oil outlet of fuel tank, the check valve that oil inlet is connect with reversal valve oil outlet, with
And it is connected to the flowline between the oil outlet of check valve and hydraulic cylinder；The oil outlet pipe includes to be connected to tank drainback
Oil return pipe mouthful between hydraulic cylinder and the hydraulic control one-way valve that is set on oil return pipe.
The oil inlet pipe further includes having throttle valve, and the oil inlet of the throttle valve and the oil outlet of fuel tank connect,
First oil outlet of throttle valve is connect with reversal valve, and the second oil outlet of throttle valve and the oil inlet of check valve connect.
The oil inlet oil return mechanism includes that there are two oil inlet pipe and two oil outlet pipe, described two oil inlet pipes
Two check valves with one switching valve block connect to form combined non-return valve, the combined non-return valve be set to fuel tank and
Between two reversal valves of two oil inlet pipes, there are one the oil guiding hole of front and back perforation and two groups for setting in the switching valve block
Transfer hole, one end of the oil guiding hole and the oil outlet of fuel tank connect, and the oil inlet of two reversal valves is another with oil guiding hole
One end connects, and one group of transfer hole includes oil inlet transfer hole and fuel-displaced transfer hole, one end of each oil inlet transfer hole with it is corresponding
The reversal valve oil outlet connection of one oil inlet pipe, the list of the other end of each oil inlet transfer hole and a corresponding oil inlet pipe
It is connected to valve oil inlet, one end of each fuel-displaced transfer hole is connected with the check valve oil outlet of a corresponding oil inlet pipe, often
The other end of a fuel-displaced transfer hole is connected with the flowline of a corresponding oil inlet pipe.
Each oil inlet transfer hole is formed by being set to the first oil-feed tank and the second oil-feed tank in switching valve block, the
The inner end of the inner end of one oil-feed tank and the second oil-feed tank is interconnected, and fluid passes through the first oil-feed tank and the second oil inlet successively
Slot is subsequently into check valve；Each of described fuel-displaced transfer hole is to go out oil groove and second fuel-displaced by being set in switching valve block first
Slot form, first go out the inner end of oil groove with second go out oil groove inner end be interconnected, check valve flow out fluid pass through successively
It crosses second and goes out oil groove and first and go out to enter corresponding flowline after oil groove.
Two reversal valves of two oil inlet pipes select double reversal valve monolithic constructions；Two oil inlet pipes
Two throttle valves on road select twin throttle monolithic construction.
Advantages of the present invention：
The present invention is provided with oil inlet pipe and oil return line so that the pipeline of oil inlet and oil return separates, and avoids the oil of oil return
Liquid reenters hydraulic cylinder when testing again next time, to improve the cleannes of test oil and reduce experiment oil temperature；This
There are two experiment oil circuits for invention setting, and the oil inlet pipe of two experiment oil circuits is combined assembly, that is, are provided with combined type
One-way valve structures so that more compact structure, and convenient for the installation and removal of oil inlet oil return mechanism, and in the process of installation and removal
In will not damage existing equipment.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 is the front view of present invention switching valve block.
Fig. 3 is the A-A sectional views in Fig. 2.
Fig. 4 is the right view of present invention switching valve block.
Fig. 5 is the B-B sectional views in Fig. 4.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
See Fig. 1-Fig. 5, a kind of oil inlet oil return mechanism for hydraulic cylinder delivery test, including there are two oil inlet pipes and two
A oil outlet pipe；
Each oil inlet pipe includes throttle valve, reversal valve, check valve 3 and flowline 6, two of two oil inlet pipes
Throttle valve selects twin throttle monolithic construction 1, two reversal valves of two oil inlet pipes to select double reversal valve monolithic constructions
2, two check valves 3 of two oil inlet pipes connect to form combined non-return valve with a switching valve block 4, and combined non-return valve is set
It is placed between fuel tank 5 and twin throttle monolithic construction 1, it is front and back there are one settings in the switching valve block 4 of combined non-return valve to pass through
Logical oil guiding hole 41 and two groups of transfer hole, one end of oil guiding hole 41 are connect with the oil outlet of fuel tank 5, twin throttle monolithic construction
1 two oil inlets are connect with the other end of oil guiding hole 41, two the first oil outlets of twin throttle monolithic construction 1 with
2 corresponding reversal valve of double reversal valve monolithic constructions connects, and one group of transfer hole includes oil inlet transfer hole and fuel-displaced transfer hole, often
A oil inlet transfer hole is formed by being set to the first oil-feed tank 42 and the second oil-feed tank 43 in switching valve block 4, the first oil-feed tank 42
Inner end and the inner end of the second oil-feed tank 43 be interconnected, each fuel-displaced transfer hole is by being set in switching valve block 4 the
One, which goes out oil groove 44 and second, goes out the composition of oil groove 45, and first goes out the inner end of oil groove 44 and the inner end that second goes out oil groove 45 mutually interconnects
It is logical, outer end second oil outlet connection corresponding with twin throttle monolithic construction 1 of the first oil-feed tank 42, every second oil inlet
3 oil inlet of check valve of the outer end of slot 43 and a corresponding oil inlet pipe connects, second go out the outer end of oil groove 45 with it is corresponding
3 oil outlet of check valve of one oil inlet pipe connects, and first goes out the fuel-displaced of the outer end of oil groove 44 and a corresponding oil inlet pipe
Pipe 6 connects, and the oil outlet of two flowlines 6 is connect with hydraulic cylinder 7；
Two oil outlet pipe include the oil return pipe 8 being connected between 5 oil return opening of fuel tank and hydraulic cylinder 7 and are set to
Hydraulic control one-way valve 9 on oil return pipe 8.
The operation principle of the present invention one of oil inlet pipe and oil return line：
First the fluid of fuel tank 5 through transfer one of the oil guiding hole 41 of valve block 4, twin throttle monolithic construction 1 into
Hydraulic fluid port enters in throttle valve, then enters double reversal valve monoblock types by the first oil outlet of twin throttle monolithic construction 1
The correspondence reversal valve of structure 2 commutates, and the fluid after commutation is returned by the first oil outlet of twin throttle monolithic construction 1 again
To twin throttle monolithic construction 1, then the fluid of twin throttle monolithic construction 1 is successively through twin throttle monolithic construction 1
The second oil outlet, valve block 4 of transferring the first oil-feed tank 42 and the second oil-feed tank 43 enter check valve 3, what check valve 3 flowed out
Fluid again successively by second go out oil groove 45, first go out oil groove 44, flowline 6 after be flowed into hydraulic cylinder 7；When oil return, hydraulic control
Check valve 9 is opened, and the fluid of hydraulic cylinder 7 returns to fuel tank 5 through oil return pipe 8.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of oil inlet oil return mechanism for hydraulic cylinder delivery test, it is characterised in that：Include oil inlet pipe and flowline
Road；The oil inlet pipe includes the reversal valve being connect with the oil outlet of fuel tank, and oil inlet is connect with reversal valve oil outlet
Check valve, and the flowline that is connected between the oil outlet of check valve and hydraulic cylinder；The oil outlet pipe includes connection
Oil return pipe between tank drainback mouth and hydraulic cylinder and the hydraulic control one-way valve being set on oil return pipe.
2. a kind of oil inlet oil return mechanism for hydraulic cylinder delivery test according to claim 1, it is characterised in that：It is described
Oil inlet pipe further include having throttle valve, the oil outlet of the oil inlet of the throttle valve and fuel tank connects, the first of throttle valve
Oil outlet is connect with reversal valve, and the second oil outlet of throttle valve and the oil inlet of check valve connect.
3. a kind of oil inlet oil return mechanism for hydraulic cylinder delivery test according to claim 1, it is characterised in that：It is described
Oil inlet oil return mechanism include two check valves of described two oil inlet pipes there are two oil inlet pipe and two oil outlet pipe
It connect to form combined non-return valve with a switching valve block, the combined non-return valve is set to fuel tank and two oil inlet pipes
Two reversal valves between, in the switching valve block setting there are one front and back perforation oil guiding hole and two groups of transfer hole, it is described
One end of oil guiding hole and the oil outlet of fuel tank connect, the oil inlet of two reversal valves connect with the other end of oil guiding hole, one
Group transfer hole includes oil inlet transfer hole and fuel-displaced transfer hole, one end of each oil inlet transfer hole and a corresponding oil inlet pipe
The connection of reversal valve oil outlet, the check valve oil inlet company of the other end of each oil inlet transfer hole and a corresponding oil inlet pipe
It connects, one end of each fuel-displaced transfer hole is connected with the check valve oil outlet of a corresponding oil inlet pipe, each fuel-displaced transfer hole
The other end and a corresponding oil inlet pipe flowline connect.
4. a kind of oil inlet oil return mechanism for hydraulic cylinder delivery test according to claim 3, it is characterised in that：It is described
Each oil inlet transfer hole formed by being set to the first oil-feed tank and the second oil-feed tank in switching valve block, the first oil-feed tank it is interior
End and the inner end of the second oil-feed tank are interconnected, and fluid passes through the first oil-feed tank and the second oil-feed tank subsequently into list successively
To valve；Each of described fuel-displaced transfer hole goes out oil groove and second by being set in switching valve block first and goes out oil groove and form, and first
Go out oil groove inner end and second go out oil groove inner end be interconnected, check valve outflow fluid go out oil groove by second successively
Enter corresponding flowline after going out oil groove with first.
5. a kind of oil inlet oil return mechanism for hydraulic cylinder delivery test according to claim 3, it is characterised in that：It is described
Two reversal valves of two oil inlet pipes select double reversal valve monolithic constructions；Two throttlings of two oil inlet pipes
Valve selects twin throttle monolithic construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810384653.2A CN108397445A (en) | 2018-04-26 | 2018-04-26 | A kind of oil inlet oil return mechanism for hydraulic cylinder delivery test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810384653.2A CN108397445A (en) | 2018-04-26 | 2018-04-26 | A kind of oil inlet oil return mechanism for hydraulic cylinder delivery test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108397445A true CN108397445A (en) | 2018-08-14 |
Family
ID=63100530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810384653.2A Pending CN108397445A (en) | 2018-04-26 | 2018-04-26 | A kind of oil inlet oil return mechanism for hydraulic cylinder delivery test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108397445A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004068663A (en) * | 2002-08-05 | 2004-03-04 | Saginomiya Seisakusho Inc | Pressure generating device |
| CN202229980U (en) * | 2011-09-28 | 2012-05-23 | 北京索普液压机电有限公司 | Hydraulic pressurizing system of testing machine |
| CN202441673U (en) * | 2012-03-06 | 2012-09-19 | 三一重工股份有限公司 | Oil cylinder testing platform |
| JP2013035617A (en) * | 2011-08-03 | 2013-02-21 | Tadano Ltd | Constituting member lifting device of mobile crane |
| CN103644151A (en) * | 2013-12-05 | 2014-03-19 | 燕山大学 | Energy-conservation and low-impact hydraulic cylinder test testbed hydraulic control system |
| CN104074840A (en) * | 2014-07-16 | 2014-10-01 | 上海豪高机电科技有限公司 | Digital valve testing system |
| CN104533868A (en) * | 2014-12-15 | 2015-04-22 | 贵州枫阳液压有限责任公司 | Combined reversing valve |
| CN205423374U (en) * | 2016-02-26 | 2016-08-03 | 山东泰丰液压股份有限公司 | Cross bridge type multiple directional control valve |
| CN106286476A (en) * | 2016-08-08 | 2017-01-04 | 湖北航天技术研究院特种车辆技术中心 | A kind of integrated form relief valve group |
| CN208221242U (en) * | 2018-04-26 | 2018-12-11 | 蚌埠液力机械有限公司 | A kind of oil inlet oil return mechanism for hydraulic cylinder delivery test |
-
2018
- 2018-04-26 CN CN201810384653.2A patent/CN108397445A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004068663A (en) * | 2002-08-05 | 2004-03-04 | Saginomiya Seisakusho Inc | Pressure generating device |
| JP2013035617A (en) * | 2011-08-03 | 2013-02-21 | Tadano Ltd | Constituting member lifting device of mobile crane |
| CN202229980U (en) * | 2011-09-28 | 2012-05-23 | 北京索普液压机电有限公司 | Hydraulic pressurizing system of testing machine |
| CN202441673U (en) * | 2012-03-06 | 2012-09-19 | 三一重工股份有限公司 | Oil cylinder testing platform |
| CN103644151A (en) * | 2013-12-05 | 2014-03-19 | 燕山大学 | Energy-conservation and low-impact hydraulic cylinder test testbed hydraulic control system |
| CN104074840A (en) * | 2014-07-16 | 2014-10-01 | 上海豪高机电科技有限公司 | Digital valve testing system |
| CN104533868A (en) * | 2014-12-15 | 2015-04-22 | 贵州枫阳液压有限责任公司 | Combined reversing valve |
| CN205423374U (en) * | 2016-02-26 | 2016-08-03 | 山东泰丰液压股份有限公司 | Cross bridge type multiple directional control valve |
| CN106286476A (en) * | 2016-08-08 | 2017-01-04 | 湖北航天技术研究院特种车辆技术中心 | A kind of integrated form relief valve group |
| CN208221242U (en) * | 2018-04-26 | 2018-12-11 | 蚌埠液力机械有限公司 | A kind of oil inlet oil return mechanism for hydraulic cylinder delivery test |
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