CN108730245A - A kind of hydraulic system - Google Patents
A kind of hydraulic system Download PDFInfo
- Publication number
- CN108730245A CN108730245A CN201810705436.9A CN201810705436A CN108730245A CN 108730245 A CN108730245 A CN 108730245A CN 201810705436 A CN201810705436 A CN 201810705436A CN 108730245 A CN108730245 A CN 108730245A
- Authority
- CN
- China
- Prior art keywords
- circulation line
- subsidiary conduit
- oil
- hydraulic system
- oil pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/16—Special measures for feedback, e.g. by a follow-up device
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
- F15B21/087—Control strategy, e.g. with block diagram
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The claimed hydraulic system of the present invention, including fuel tank, valve platform, circulation line and executing agency, valve platform is for pumping the oil in fuel tank to circulation line；Reversal valve is provided on the valve platform, and available reversal valve controls the oil in circulation line；Oil pressure testing agency is provided in executing agency, oil pressure testing agency is used to be detected the both sides oil pressure for driving piston to be moved back and forth in the executing agency respectively；Hydraulic system further includes controller, and controller is used to receive the feedback signal of the oil pressure testing agency, and corresponds to the control for controlling oil circuit in the reversal valve cut-out circulation line according to feedback signal.The present invention is at work, once circulation line leaks, the oil in circulation line can be cut off in time with reversal valve, the automation of the timely leak stopping of the hydraulic system is realized with this, this addresses the problem the corresponding problems for occurring to cause due to leakage because of circulation line.
Description
Technical field
The invention belongs to the relevant technical fields of hydraulic test, are specifically related to a kind of hydraulic system.
Background technology
It is appreciated that in large-scale preparation workshop, it is often necessary to fluid pressure drive device is used, with according to the demand used
To provide corresponding power output.
Fluid pressure drive device specifically includes fuel tank, circulation line, and for fuel tank to be pumped to the valve to circulation line
Platform, and the executing agency on circulation line, wherein executing agency can be specially oil cylinder or hydraulic motor, and valve platform
Oil pump is inside specifically included, is pumped to circulation line in the form of high oil pressure by by the oil in fuel tank so that executing agency utilizes
Oil pressure pushes the piston in it to be moved back and forth, and finally realizes external effect, according to the demand used, can recycle
Multiple executing agencies are set on pipeline.
Wherein, circulation line is usually and is made of oil pipe and oil connection, and specifically available multiple-tubing string passes through oil connection
Mode be attached, according to the demand used, the length of the circulation line on fluid pressure drive device could be provided as
Very long, this requires circulation line to need stronger sealing performance.Because the oil flowed in circulation line has the property of high oil pressure
Can so that fluid pressure drive device when in use, junction between oil connection and oil pipe or oil pipe in circulation line from
Body once leaks, and can make the oil in the fuel tank that can quickly have been leaked, and the hydraulic-driven on the one hand can be made to fill in this way
The function of losing to executing agency's hydraulic-driven is set, the pollution of external environment on the other hand can be also generated because of the leakage of oil, no
The use demand of enterprise can be met well.
Invention content
Based on this, it is necessary to for the technical problems in the prior art, provide a kind of hydraulic system.
Specifically：A kind of hydraulic system, including fuel tank, valve platform, circulation line, and used on the circulation line
In the executing agency of power output, the valve platform is for pumping the oil in fuel tank to the circulation line, and the cycle
Oil in pipeline has certain oil pressure, to drive the piston in the executing agency to be moved back and forth in executing agency；Its
It is characterized in that：Reversal valve is provided on the valve platform, and available reversal valve controls the oil in circulation line；The execution
Oil pressure testing agency is provided in mechanism, the oil pressure testing agency is used for driving piston to carry out back and forth in the executing agency
Mobile both sides oil pressure is detected respectively；The hydraulic system further includes controller, and the controller is for receiving institute
The feedback signal of oil pressure testing agency is stated, and is cut off in the circulation line according to feedback signal to correspond to the control reversal valve
The control of oil circuit.
As the preferred embodiment of the present invention, the controller includes receiving module, judgment module and control module, described to connect
Module is received for the signal transmitted by oil pressure testing agency described in real-time reception, the judgment module is for judging the oil pressure inspection
The standard whether signal transmitted by mechanism meets the circulation line oil pressure leakage is surveyed, the control module is according to judging result
To reversal valve cut off the control of oil circuit in the circulation line.
As the present invention preferred embodiment, the oil pressure testing agency include set on the executing agency both sides and with it is described
Two connecting tubes of executing agency's connection, wherein being respectively set in every connecting tube, there are one fluid control pressure table, two liquid
Governor pressure table carries out signal with controller respectively and connect, and the fuel injection pressure signal measured by it is sent to controller.
As the present invention preferred embodiment, the oil pressure testing agency include set on the executing agency both sides and with it is described
Two conduits of executing agency's connection, and respectively two touching switchs that signal is connect are carried out with the controller；Two institutes
It states to be provided between conduit and touches component, the component that touches can touch one of touching switch or be touched out with two
Guan Jun is not touched.
As the preferred embodiment of the present invention, the component that touches includes the piston that both ends part stretches to two conduits
Bar, and it is fixed in the gag lever post on the piston rod and between two touching switchs, the gag lever post is vertically arranged
It is set on the part on the outside of two conduits, and can be respectively touched with two conduits in the piston rod.
As the preferred embodiment of the present invention, two conduits are set as closing away from one end of the executing agency
It holds, is connected separately with a subsidiary conduit on two conduits, is respectively defined as the first subsidiary conduit and the second subsidiary conduit, institute
It states the first subsidiary conduit to be oppositely arranged with second subsidiary conduit, and the both ends of the piston rod are respectively protruding into the first auxiliary
In conduit and the second subsidiary conduit, and it is slidably connected relative to first subsidiary conduit and the second subsidiary conduit.
As the preferred embodiment of the present invention, the piston rod is stretching to first subsidiary conduit and the second subsidiary conduit
Both side ends be socketed with a sealing ring respectively, to be sealed to the first subsidiary conduit and the second subsidiary conduit.
As the preferred embodiment of the present invention, it is connected with the first trepanning gasket in first subsidiary conduit, described first opens
One end that hole gasket is stretched to the piston rod in first subsidiary conduit is attached with the first spring；Described second is auxiliary
The second trepanning gasket is connected in assistant director of a film or play's pipe, the second trepanning gasket stretches to second subsidiary conduit with the piston rod
Interior one end is attached with second spring.
As the preferred embodiment of the present invention, one is respectively arranged on first subsidiary conduit and second subsidiary conduit
Hydralic pressure gauge.
As the preferred embodiment of the present invention, the reversal valve is solenoid directional control valve.
Due to the application of the above technical scheme, the present invention has following advantages compared with prior art：
Hydraulic system provided by the present invention passes through rational structure setting so that the hydraulic system is using
When, oil pressure in circulation line can in real time be monitored with oil pressure testing agency, and the fuel injection pressure signal surveyed is fed back into control
Device thereby realizes the hydraulic system and is working to realize the control of the switching oil circuit to reversal valve with controller
When, once circulation line leaks, the oil in circulation line can be cut off in time with reversal valve, this is realized with this
The automation of the timely leak stopping of hydraulic system, this addresses the problem the corresponding problem that causes due to circulation line occurs to leak,
Meet use demand of the enterprise for hydraulic system.
Description of the drawings
The structural schematic diagram for the hydraulic system that Fig. 1 is provided by first embodiment of the invention.
The structural schematic diagram for the hydraulic system that Fig. 2 is provided by second embodiment of the invention.
Fig. 3 is the structural schematic diagram of oil pressure testing agency in second embodiment of the invention.
Fig. 4 is the module frame chart of controller in the present invention.
Wherein, 10, fuel tank；20, valve platform；21, reversal valve；30, circulation line；40, executing agency；41, piston；51, it leads
Pipe；52, touching switch；53, component is touched；54, hydralic pressure gauge；60, controller；61, receiving module；62, judgment module；63, it controls
Molding block；501, connecting tube；502, fluid control pressure table；511, the first subsidiary conduit；512, the second subsidiary conduit；513, it first opens
Hole gasket；514, the first spring；515, the second trepanning gasket；516, second spring；531, piston rod；532, gag lever post；533,
Sealing ring.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is described in further details.
Please refer to Fig.1-Fig. 4, the claimed hydraulic system of the present invention, including fuel tank 10, valve platform 20, circulation line
30, and further include for the executing agency 40 of power output, hydraulic system of the invention on the circulation line 30
Oil pressure testing agency and controller 60 so that the hydraulic system at work, can when circulation line 30 leaks
The oil passage of circulation line 30 is cut off in time, achievees the purpose that leak stopping.
Wherein, the valve platform 20 be for pumping the oil in fuel tank 10 to circulation line 30, and provide oil recycling
The power of 30 internal circulation flow of pipeline.Specifically, the valve platform 20 will be pumped to the oil in circulation line 30 with certain
Oil pressure, and then realize the driving moved back and forth in executing agency 40 to the piston 41 in executing agency 40, that is to say, that
40 specific foreign work of executing agency, is using oil pressure as power source.
The valve platform 20 of the present embodiment is specifically provided on the fuel tank 10, and the valve platform 20 includes oil pump (figure
Do not show), to provide the oil extracted in fuel tank 10, so that the oil in circulation line 30 has high oil pressure.And the valve platform of the present embodiment
20 further include by reversal valve 21, and to commutate to the oil that oil pump is pumped to circulation line 30, and cut-out controls, this is because
What the both ends of circulation line 30 were connect with valve platform 20 respectively.It of courses according to the demand used, the valve platform 20 of the present embodiment may be used also
Including check valve, throttle valve, respective function is realized with corresponding.Wherein, the reversal valve 21 is solenoid directional control valve.
It is appreciated that hydraulic system during specifically used, may be provided with multiple circulation lines 30, wherein often
Multiple executing agencies 40 can also be set on a circulation line 30, and can be extracted out the oil in fuel tank 10 by an oil pump, and can
Accordingly it is connected with one of circulation line 30 by reversal valve 21 under Pipeline transport in parallel.
The oil pressure testing agency applies in the hydraulic system, is particularly used for being driven in the executing agency 40
The both sides oil pressure that piston 41 is moved back and forth is detected respectively, that is to say, that the oil pressure testing agency of the present embodiment is
For the input end oil pressure to executing agency 40, it is detected respectively with outlet end oil pressure.And the oil for detecting it
Pressure signal feeds back to controller 60.
In the first embodiment of the present invention, the oil pressure testing agency include set on 40 both sides of the executing agency and with institute
Two connecting tubes 501 of the connection of executing agency 40 are stated, there are one fluid control pressure tables wherein being respectively set in every connecting tube 501
502, two fluid control pressure tables 502 carry out signal with controller 60 respectively and connect, and the fuel injection pressure signal measured by it is sent to
Controller 60.Also that is, above-mentioned oil pressure testing agency passes through in the connection connection outward respectively of the position of 40 tested point of executing agency
Pipe 501, and the oil pressure to tested point is realized by fluid control pressure table 502.
In the second embodiment of the present invention, the oil pressure testing agency include set on 40 both sides of the executing agency and with institute
Two conduits 51 of the connection of executing agency 40 are stated, and carry out two touching switchs that signal is connect with the controller 60 respectively
52；It is provided between two conduits 51 and touches component 53, the component 53 that touches can touch one of touching switch
It 52 or is not touched with two touching switchs 52.
It is appreciated that in the present embodiment, when touching one of component 53 and two touching switch 52 touching switch
52 when touching, it is meant that two oil pressure in executing agency 40 at position to be measured are inconsistent, touch two and different touch
Switch 52 means that the height direction of two oil pressure at position to be measured in executing agency 40 is different, correspondingly, represents cycle
One of pipeline 30 pipeline is leaked；And do not touched with two touching switchs 52 when touching component 53, it means
Two oil pressure in executing agency 40 at position to be measured are equal.
The touching switch 52 is to be connect for carrying out signal with controller 60, and can ought touch component 53 and touch
Generated signal is sent to controller 60 when touching switch 52, so that controller 60 adjusts exchange according to the demand used to correspond to
Control to valve 21.
In the present embodiment, the component 53 that touches includes the piston rod that both ends part stretches to two conduits 51
531, and it is fixed in the gag lever post 532 on the piston rod 531 and between two touching switchs 52, the gag lever post
532 are vertically disposed at the piston rod 531 on the part in two 51 outsides of conduit, and can distinguish with two conduits 51
It touches.That is, piston rod 531 can be occurred by the different differential pressure action of two conduits 51 between two conduits 51
Move back and forth, and then the gag lever post 532 being fixed on piston rod 531 is driven to be moved back and forth, touching switch 52 to occur
It touches.
Specifically, two conduits 51 are being set as blind end away from one end of the executing agency 40, described in two
It is connected separately with a subsidiary conduit on conduit, is respectively defined as the first subsidiary conduit 511 and the second subsidiary conduit 512, described
One subsidiary conduit 511 is oppositely arranged with second subsidiary conduit 512, and the both ends of the piston rod 531 are respectively protruding into
In one subsidiary conduit 511 and the second subsidiary conduit 512, and relative to first subsidiary conduit, 511 and second subsidiary conduit 512
It is slidably connected.That is, piston rod 531 can move back and forth between the first subsidiary conduit 511 and the second subsidiary conduit 512.
Wherein, the piston rod 531 is in the both sides for stretching to first subsidiary conduit, 511 and second subsidiary conduit 512
End is respectively sleeved on a sealing ring 533, to be sealed to the first subsidiary conduit 511 and the second subsidiary conduit 512, so as to
Piston rod 531 occurs for the oil pressure in oil pressure and the second subsidiary conduit 512 in one subsidiary conduit 511 piston rod 531 to be pushed to move
Dynamic active force.
Further, the first trepanning gasket 513, the first trepanning gasket are connected in first subsidiary conduit 511
513 one end stretched in first subsidiary conduit 511 with the piston rod 531 are attached with the first spring 514；It is described
The second trepanning gasket 515 is connected in second subsidiary conduit 512, the second trepanning gasket 515 is stretched into the piston rod 531
One end second spring 516 in second subsidiary conduit 512 is attached.To be led in the first auxiliary to piston rod 531
Displacement distance in pipe 511 and the second subsidiary conduit 512 is limited, and prevents gag lever post 532 with the movement of piston rod 531,
Excessively touched with touching switch 52, and touching switch 52 damaged, of coursed, by above-mentioned first spring 514,
First trepanning gasket 513, the structure setting of second spring 516 and the second trepanning gasket 515, it is ensured that the both ends of piston rod 531
Always it limits in the first subsidiary conduit 511 and the second subsidiary conduit 512, piston rod 531 and the first subsidiary conduit is ensured with this
511 and the second connection sealing between subsidiary conduit 512.
As the preferred embodiment of the present embodiment, the present embodiment is in the first subsidiary conduit 511 and second subsidiary conduit 512
On be respectively arranged with a hydralic pressure gauge 54, intuitively read with the oil pressure to the first subsidiary conduit 511 and the second subsidiary conduit 512.
The controller 60 is applied in the hydraulic system, is the feedback letter for receiving the oil pressure testing agency
Number, and correspond to the control for controlling the reversal valve 21 and cutting off oil circuit in the circulation line 30 according to two fuel injection pressure signals.
According to the demand used, the controller 60 of the present embodiment has including receiving module 61, judgment module 62 and control
Module 63, the receiving module 61 is for the signal transmitted by oil pressure testing agency described in real-time reception, the judgment module 62
For judging whether the signal transmitted by the oil pressure testing agency meets the standard of oil leakage in circulation line 30, the control
Module 63 to reversal valve 21 cut off the control of oil circuit in the circulation line 30 according to judging result.
It is appreciated that in the first embodiment of the present invention, the oil pressure testing agency is sent to the signal of controller 60
For the fuel injection pressure signal of two branches on circulation line 30, and when the difference between two fuel injection pressure signals is larger, the controller
The oil that 60 judgment module 62 is judged as in the circulation line 30 is leaked, and correspondingly, just control commutates control module 63
Valve 21 cuts off the oil circuit in the circulation line 30.And in the second embodiment of the present invention, the oil pressure testing agency sends
To the signal that the signal of controller 60 generates for two touching switch 52 due to by gag lever post 532 respectively, controller 60 receives
The judgment module 62 of signal transmitted by any one touching switch 52, the controller 60 is judged as in the circulation line 30
Oil is leaked, and correspondingly, just control reversal valve 21 cuts off the oil circuit in the circulation line 30 to control module 63.
To sum up, hydraulic system provided by the present invention passes through rational structure setting so that the hydraulic system
When in use, oil pressure in circulation line can in real time be monitored with oil pressure testing agency, and the fuel injection pressure signal surveyed is fed back
To controller the hydraulic system is thereby realized to realize the control of the switching oil circuit to reversal valve with controller
At work, once circulation line leaks, the oil in circulation line can be cut off in time with reversal valve, with this reality
The automation for having showed the timely leak stopping of the hydraulic system, it is corresponding this addresses the problem causing because of circulation line generation leakage
Problem meets use demand of the enterprise for hydraulic system.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of hydraulic system, including fuel tank, valve platform, circulation line, and be set to defeated for power on the circulation line
The executing agency gone out, the valve platform are used to pump the oil in fuel tank to the circulation line, and in the circulation line
Oil has certain oil pressure, to drive the piston in the executing agency to be moved back and forth in executing agency；It is characterized in that：
Reversal valve is provided on the valve platform, and available reversal valve controls the oil in circulation line；It is set in the executing agency
Be equipped with oil pressure testing agency, the oil pressure testing agency be used for drive that piston moved back and forth in the executing agency two
Side oil pressure is detected respectively；The hydraulic system further includes controller, and the controller is for receiving the oil pressure inspection
The feedback signal of mechanism is surveyed, and the control for controlling the reversal valve and cutting off oil circuit in the circulation line is corresponded to according to feedback signal
System.
2. hydraulic system according to claim 1, it is characterised in that：The controller includes receiving module, judges
Module and control module, the receiving module is for the signal transmitted by oil pressure testing agency described in real-time reception, the judgement
Module is used to judge whether the signal transmitted by the oil pressure testing agency to meet the standard of the circulation line oil pressure leakage, institute
State the control that control module to reversal valve cut off oil circuit in the circulation line according to judging result.
3. hydraulic system according to claim 1, it is characterised in that：The oil pressure testing agency includes set on described
Executing agency both sides and two connecting tubes being connected to the executing agency, wherein being respectively set in every connecting tube, there are one liquid
Governor pressure table, two fluid control pressure tables carry out signal with controller respectively and connect, the fuel injection pressure signal measured by it is sent out
Give controller.
4. hydraulic system according to claim 1, it is characterised in that：The oil pressure testing agency includes set on described
Executing agency both sides and two conduits being connected to the executing agency, and carry out what signal was connect with the controller respectively
Two touching switchs；Be provided between two conduits and touch component, it is described touch component and can touch one of them touch
Switch does not touch with two touching switchs.
5. hydraulic system according to claim 4, it is characterised in that：The component that touches includes that both ends part is stretched into
To the piston rod of two conduits, and it is fixed in the gag lever post on the piston rod and between two touching switchs,
The gag lever post is vertically disposed at the piston rod on the part on the outside of two conduits, and can distinguish with two conduits
It touches.
6. hydraulic system according to claim 5, it is characterised in that：Two conduits are away from the execution machine
One end of structure is set as blind end, and a subsidiary conduit is connected separately on two conduits, is respectively defined as the first auxiliary and leads
Pipe and the second subsidiary conduit, first subsidiary conduit is oppositely arranged with second subsidiary conduit, and the two of the piston rod
End is respectively protruding into the first subsidiary conduit and the second subsidiary conduit, and is led relative to first subsidiary conduit and the second auxiliary
Pipe is slidably connected.
7. hydraulic system according to claim 6, it is characterised in that：The piston rod is to stretch to described first auxiliary
The assistant director of a film or play manages and the both side ends of the second subsidiary conduit are socketed with a sealing ring respectively, to be led to the first subsidiary conduit and the second auxiliary
Pipe is sealed.
8. hydraulic system according to claim 7, it is characterised in that：It is connected with first in first subsidiary conduit
Trepanning gasket, the first trepanning gasket stretch to the first spring of one end in first subsidiary conduit with the piston rod
It is attached；The second trepanning gasket is connected in second subsidiary conduit, the second trepanning gasket is stretched with the piston rod
Enter to one end in second subsidiary conduit and is attached with second spring.
9. hydraulic system according to claim 8, it is characterised in that：First subsidiary conduit and described second auxiliary
A hydralic pressure gauge is respectively arranged on assistant director of a film or play's pipe.
10. hydraulic system according to claim 1, it is characterised in that：The reversal valve is solenoid directional control valve.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810705436.9A CN108730245A (en) | 2018-07-02 | 2018-07-02 | A kind of hydraulic system |
| PCT/CN2019/092379 WO2020007208A1 (en) | 2018-07-02 | 2019-06-21 | Hydraulic circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810705436.9A CN108730245A (en) | 2018-07-02 | 2018-07-02 | A kind of hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108730245A true CN108730245A (en) | 2018-11-02 |
Family
ID=63925572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810705436.9A Pending CN108730245A (en) | 2018-07-02 | 2018-07-02 | A kind of hydraulic system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108730245A (en) |
| WO (1) | WO2020007208A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020007208A1 (en) * | 2018-07-02 | 2020-01-09 | 尹财富 | Hydraulic circulation system |
| CN111298508A (en) * | 2019-12-12 | 2020-06-19 | 陈小林 | Self-cleaning type petroleum suction filtering equipment |
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| WO2020007208A1 (en) * | 2018-07-02 | 2020-01-09 | 尹财富 | Hydraulic circulation system |
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| CN111298508B (en) * | 2019-12-12 | 2021-11-09 | 宁夏宝众帮化工有限公司 | Self-cleaning type petroleum suction filtering equipment |
Also Published As
| Publication number | Publication date |
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| WO2020007208A1 (en) | 2020-01-09 |
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Application publication date: 20181102 |