CN109139574A - A kind of pressure autonomous control hydraulic system - Google Patents
A kind of pressure autonomous control hydraulic system Download PDFInfo
- Publication number
- CN109139574A CN109139574A CN201811046101.7A CN201811046101A CN109139574A CN 109139574 A CN109139574 A CN 109139574A CN 201811046101 A CN201811046101 A CN 201811046101A CN 109139574 A CN109139574 A CN 109139574A
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- mouthfuls
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- pressure
- hydraulic
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- 239000012530 fluid Substances 0.000 claims abstract description 22
- 239000002828 fuel tank Substances 0.000 claims abstract description 12
- 230000008676 import Effects 0.000 claims abstract description 11
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 10
- 239000003921 oil Substances 0.000 claims description 50
- 239000007788 liquid Substances 0.000 description 36
- 238000010079 rubber tapping Methods 0.000 description 11
- 238000010248 power generation Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
-
- 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
-
- 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
- F15B21/14—Energy-recuperation means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of pressure autonomous control hydraulic systems, including the first check valve, accumulator group, automatically control part, second one-way valve and fuel tank, the import of first check valve connects hydraulic oil input terminal, and the outlet of the first check valve is sequentially connected P1 mouthfuls of accumulator group, automatically controls part；Automatically controlling part includes sequence valve, pilot operated directional control valve and hydraulic control one-way valve, and A1 mouthfuls of order of connection valve of P1 mouthfuls of accumulator group, B1 mouthfuls of sequence valve are connected with pilot operated directional control valve left position hydraulic fluid port, P2 mouthfuls, and A2 mouthfuls of pilot operated directional control valve are connected with X mouthfuls of hydraulic control one-way valve；P1 mouthfuls of accumulator group is also connected with B3 mouthfuls of hydraulic control one-way valve, and A3 mouthfuls of hydraulic control one-way valve are connected with second one-way valve import, and second one-way valve outlet is hydraulic oil output end；Y1 mouthfuls of sequence valve, T mouthfuls of pilot operated directional control valve, right position hydraulic fluid port and Y2 mouthfuls of hydraulic control one-way valve are connected to fuel tank.Pressure autonomous control hydraulic system of the present invention, pressure control are stablized, are not influenced by wave size.
Description
Technical field
The present invention relates to Fluid Transmission and Control technical fields, more particularly to a kind of pressure autonomous control hydraulic system.
Background technique
As national marine power strategy deepens continuously, as the navigational aids demands such as marine unattended floating lamp are more next
It is bigger.Because traditional larger by ocean adverse weather conditions using floating lamp of solar energy and wind power generation etc., and utilize wave
The equipment utilization that can be generated electricity is more and more wider.And the key technology in wave-energy power generation equipment is to control accumulation of energy using pressure controller
Device filling liquid and tapping.However existing frequently-used pressure controller has the disadvantage in that the pressure parameter that can not freely set start-stop,
Pressure control is unstable, influences generating efficiency vulnerable to wave size；Structure is complicated, and volume is larger.
Summary of the invention
In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of pressure autonomous control hydraulic system, pressure control
Stablize, is not influenced by wave size.
To achieve the above object, a kind of pressure autonomous control hydraulic system provided by the present invention, including the first check valve,
Accumulator group automatically controls part, second one-way valve and fuel tank, the import connection hydraulic oil input of first check valve
End, the outlet of first check valve are sequentially connected P1 mouthfuls of the accumulator group, automatically control part；
The automatic control part includes sequence valve, pilot operated directional control valve and hydraulic control one-way valve, P1 mouthfuls of companies of the accumulator group
Described sequence valve A1 mouthfuls are connect, described sequence valve B1 mouthfuls are connected with pilot operated directional control valve left position hydraulic fluid port, P2 mouthfuls, and the hydraulic control is changed
It is connected to A2 mouthfuls of valve with described hydraulic control one-way valve X mouthfuls；
P1 mouthfuls of the accumulator group is also connected with described hydraulic control one-way valve B3 mouthfuls, and described hydraulic control one-way valve A3 mouthfuls and described the
Two check valve inlets are connected, and the second one-way valve outlet is hydraulic oil output end；Described sequence valve Y1 mouthfuls, pilot operated directional control valve T
Mouth, right position hydraulic fluid port and Y2 mouthfuls of hydraulic control one-way valve are connected to fuel tank；The setting pressure of the accumulator group is less than the sequence
The setting pressure of the setting pressure of valve, the pilot operated directional control valve is less than described suitable slightly larger than the setting pressure of the accumulator group
The setting pressure of sequence valve.
It further, further include overflow valve, the overflow valve import is connected for P1 mouthfuls with the accumulator group, the overflow valve
Outlet is end of draining the oil.
Further, the automatic control part further includes adjustable damper valve, and the adjustable damper valve is arranged in the storage
On oil circuit between energy device group and the sequence valve.
Further, the first survey press oil port is provided on the oil circuit between first check valve and the accumulator group.
Further, the second survey pressure oil is provided on the oil circuit between the hydraulic control one-way valve and the second one-way valve
Mouthful.
Further, the accumulator group sets pressure as 2.8MPa, the pilot operated directional control valve set pressure as
3MPa, the sequence valve set pressure as 5MPa, and the overflow valve sets pressure as 6MPa.
A kind of pressure autonomous control hydraulic system of the present invention, by the accumulator group, sequence valve, liquid controlled reversing
Valve, hydraulic control one-way valve setting pressure set after, pressure value at P1 mouthfuls of the accumulator group is greater than the accumulator group
Setting pressure and when being less than the setting pressure of the sequence valve, the sequence valve is closed, and external oil liquid can only flow into the storage
In energy device group, the accumulator group is in filling liquid state at this time；Pressure value at P1 mouthfuls of the accumulator group is gradually increased directly
To more than the sequence valve setting pressure when, the sequence valve is opened, and oil liquid is from the sequence valve followed by the hydraulic control
At reversal valve left side hydraulic fluid port, hydraulic control one-way valve and the hydraulic control one-way valve unlatching is controlled, while oil liquid is followed by the hydraulic control
Check valve, second one-way valve to output end, the accumulator group is in tapping state at this time；At P1 mouthfuls of the accumulator group
When pressure value gradually decreases down the setting pressure lower than the pilot operated directional control valve with the tapping of the accumulator group, the liquid
It controls hydraulic fluid port on the left of reversal valve to close and the unlatching of right side hydraulic fluid port, in the oil circuit between the pilot operated directional control valve and the hydraulic control one-way valve
Oil liquid be back in fuel tank by hydraulic fluid port on the right side of the pilot operated directional control valve, the hydraulic control one-way valve is closed, the accumulator group
Again it is in filling liquid state；To realize hydraulic system pressure autonomous stabilisation control, without artificial regulatory, be not required to be powered,
It is not influenced by external wave size, and then effectively increases generating efficiency.
Detailed description of the invention
Fig. 1 is the filling liquid state principle figure of the pressure autonomous control hydraulic system of the embodiment of the present invention；
Fig. 2 is the tapping state principle figure of the pressure autonomous control hydraulic system of the embodiment of the present invention.
Wherein, the 1, first check valve, 2, accumulator group, 3, automatic control part, 31, sequence valve, 32, pilot operated directional control valve,
33, hydraulic control one-way valve, 34, adjustable damper valve, 4, second one-way valve, 5, fuel tank, 6, overflow valve, 7, first surveys press oil port, and 8, the
Two survey press oil port, 9, hydraulic oil input terminal, 10, hydraulic oil output end.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
As shown in Figures 1 and 2, pressure autonomous control hydraulic system described in the embodiment of the present invention comprising first is unidirectional
Valve 1, accumulator group 2 automatically control part 3, second one-way valve 4 and fuel tank 5, and the import of first check valve 1 connects liquid
Pressure oil input terminal 10, the outlet of first check valve 1 are sequentially connected the P1 mouth of the accumulator group 2, automatically control part 3；
The automatic control part 3 includes sequence valve 31, pilot operated directional control valve 32 and hydraulic control one-way valve 33, the accumulator group
2 P1 mouth connects the A1 mouth of the sequence valve 31, the left position hydraulic fluid port of the B1 mouth of the sequence valve 31 and the pilot operated directional control valve 32,
P2 mouthfuls are connected, and the A2 mouth of the pilot operated directional control valve 32 is connected with the X mouth of the hydraulic control one-way valve 33；
The P1 mouth of the accumulator group 2 is also connected with the B3 mouth of the hydraulic control one-way valve 33, the hydraulic control one-way valve 33
A3 mouthfuls are connected with the import of the second one-way valve 4, and the outlet of the second one-way valve 4 is hydraulic oil output end 11；It is described suitable
The Y1 mouth of sequence valve 31, the T mouth of pilot operated directional control valve 32, right position hydraulic fluid port and hydraulic control one-way valve 33 Y2 mouth be connected to fuel tank 5；Institute
The setting pressure for stating accumulator group 2 is less than the setting pressure of the sequence valve 31, and the setting pressure of the pilot operated directional control valve 32 is omited
Greater than the accumulator group 2 setting pressure and be less than the sequence valve 31 setting pressure；
A kind of pressure autonomous control hydraulic system of the present invention, by the accumulator group 2, sequence valve 31, hydraulic control
Reversal valve 32, hydraulic control one-way valve 33 setting pressure set after, pressure value at the P1 mouth of the accumulator group 2 is greater than institute
When stating the setting pressure of accumulator group 2 and being less than the setting pressure of the sequence valve 31, the sequence valve 31 is closed, external oil liquid
It can only flow into the accumulator group 2, the accumulator group 2 is in filling liquid state at this time；At the P1 mouth of the accumulator group 2
Pressure value be gradually increased until when being greater than the setting pressure of the sequence valve 31, the sequence valve 31 is opened, and oil liquid is from described
Sequence valve 31 is followed by the left side hydraulic fluid port of the pilot operated directional control valve 32, hydraulic control one-way valve 33 and controlling the hydraulic control one-way valve
33 open, while oil liquid is followed by the hydraulic control one-way valve 33, second one-way valve 4 to output end, at this time the accumulator group 2
In tapping state；Pressure value at the P1 mouth of the accumulator group 2 is gradually reduced with the tapping of the accumulator group 2
When being extremely lower than the setting pressure of the pilot operated directional control valve 32, the left side hydraulic fluid port of the pilot operated directional control valve 32 is closed and right side hydraulic fluid port is opened
It opens, the oil liquid in oil circuit between the pilot operated directional control valve 32 and the hydraulic control one-way valve 33 passes through the pilot operated directional control valve 32
Right side hydraulic fluid port is back in fuel tank 5, and the hydraulic control one-way valve 33 is closed, and the accumulator group 2 is in filling liquid state again；To
The pressure autonomous stabilisation control for realizing hydraulic system without artificial regulatory, is not required to energization, not by the shadow of external wave size
It rings, and then effectively increases generating efficiency.
In embodiments of the present invention, it is preferable that it further include overflow valve 6, the import of the overflow valve 6 and the accumulator group
2 P1 mouth is connected, and the outlet of the overflow valve 6 is end of draining the oil.By the way that overflow valve 6 is arranged at the P1 mouth of the accumulator group 2,
And the setting pressure of the overflow valve 6 is slightly larger than the setting pressure of the accumulator group 2, makees to play system pressure protection
With.
Preferably, the automatic control part 3 further includes adjustable damper valve 34, and the adjustable damper valve 34 is arranged described
On oil circuit between accumulator group 2 and the sequence valve 31.
Preferably, the first survey press oil port 7 is provided on the oil circuit between first check valve 1 and the accumulator group 2.
Preferably, the second survey pressure oil is provided on the oil circuit between the hydraulic control one-way valve 33 and the second one-way valve 4
Mouth 8.
In embodiments of the present invention, it is preferable that the accumulator group 2 sets pressure as 2.8MPa, the liquid controlled reversing
Valve 32 sets pressure as 3MPa, and the sequence valve 31 sets pressure as 5MPa, the overflow valve 6 set pressure as
6MPa.It should be noted that the setup pressure value of the pilot operated directional control valve 32, sequence valve 31 can be according to real work situation normal
Any setting (in 1~31.5MPa) under pressure rating is advised, herein not to the setting pressure of the pilot operated directional control valve 32, sequence valve 31
Force value is specifically limited.The sequence valve 32, pilot operated directional control valve 32, hydraulic control one-way valve 33, adjustable damper valve 34, second one-way valve
4, overflow valve 6 is all made of standard component, suitable mounting means can be selected according to demand is not had to, to improve the hydraulic pressure system
The applicability of system.Pressure autonomous control hydraulic system of the present invention can not only be gone back in the equipment of wave-energy power generation
It can be applied in other hydraulic systems for needing pressure autonomous control, be not specifically limited herein.
Below with reference to Fig. 1 and Fig. 2, the working principle of pressure autonomous control hydraulic system described in the embodiment of the present invention into
Row is described in detail:
(1) when using pressure autonomous control hydraulic system of the present invention, first, in accordance with equipment requirement, by each element
Setup pressure value be configured: the accumulator group 2 sets pressure as 2.8MPa, the setting pressure of the pilot operated directional control valve 32
Power is 3MPa, and the sequence valve 31 sets pressure as 5MPa, and the overflow valve 6 sets pressure as 6MPa；
(2) when oil liquid is flowed by input terminal 9, oil liquid flows into the accumulator group 2 by first check valve 1, when
When the pressure value that measures is less than 5Mpa at the first survey press oil port 7, the A1 mouth of the sequence valve 31 and B1 mouthfuls it is obstructed, it is described
The B3 mouth of hydraulic control one-way valve 33 and A3 mouthfuls it is obstructed, external oil liquid can only flow into the accumulator group 2, at this time the accumulator group
2 are in filling liquid state；
(3) as the pressure value measured at the first survey press oil port 7 constantly increases, when reaching 5Mpa, the sequence
The A1 mouth of valve 31 is connected to B1 mouthfuls, and oil liquid arrives the left side hydraulic fluid port of the pilot operated directional control valve 32 through B1 mouthfuls, pushes the liquid controlled reversing
32 spool of valve moves to right, and the P2 mouth of the pilot operated directional control valve 32 is connected to A2 mouthfuls at this time, P2 of the oil liquid through the pilot operated directional control valve 32
Mouthful, A2 mouthfuls flow to the X mouth of the hydraulic control one-way valve 33, and open the main valve plug of the hydraulic control one-way valve 33, make the hydraulic control
The B3 mouth of check valve 33 is connected to A3 mouthfuls, and the oil liquid in the accumulator group 2 flow to second list through P1 mouthfuls, B3 mouthfuls, A3 mouthfuls
Import to valve 4, then output end 10 is flowed out, the accumulator group 2 is in tapping state at this time；When the accumulator group 2 is in
When tapping state, the oil liquid of input terminal 9 is simultaneously in lasting input, but the influence because of the flow very little of input, to accumulator tapping
It is almost negligible to disregard；
(4) as time goes by, the hydraulic oil inside the accumulator group 2 is fewer and fewer, and described first surveys at press oil port 7
The pressure value measured also can be reduced constantly, while the A1 mouth of the sequence valve 31, the right position hydraulic fluid port of pilot operated directional control valve 32 and liquid
Controlling the pressure at the positions such as the X mouth of check valve 33 is also accordingly reducing, and when pressure is less than 3MPa, pilot operated directional control valve 32 exists at this time
Spool is moved to the left under the action of setting up spring force, the P2 mouth of the pilot operated directional control valve 32 and A2 mouthfuls of disconnections, A2 mouthfuls and T mouthfuls of companies
Logical, the oil liquid in oil circuit between the pilot operated directional control valve 32 and the hydraulic control one-way valve 33 flows back to oil through A2 mouthfuls, T mouthfuls, Y2 mouthfuls
Case 5, the pressure of the X mouth of the hydraulic control one-way valve 33 is less than the cracking pressure of hydraulic control one-way valve 33 at this time, hydraulic control one-way valve 33
Spool returns to original state, and the B3 mouth of the hydraulic control one-way valve 33 returns to accumulator group 2 again and fill with A3 mouthfuls of disconnections, hydraulic system
The working condition of liquid.
To sum up, a kind of pressure autonomous control hydraulic system provided by the embodiment of the present invention, by the accumulator group 2,
Sequence valve 31, pilot operated directional control valve 32, hydraulic control one-way valve 33 setting pressure set after, at the P1 mouth of the accumulator group 2
Pressure value be greater than the accumulator group 2 setting pressure and less than the sequence valve 31 setting pressure when, the sequence valve
31 close, and external oil liquid can only flow into the accumulator group 2, and the accumulator group 2 is in filling liquid state at this time；When the storage
When pressure value at the P1 mouth of energy device group 2 is gradually increased the setting pressure up to being greater than the sequence valve 31, the sequence valve 31
It opens, oil liquid from the left side hydraulic fluid port of the pilot operated directional control valve 32, hydraulic control one-way valve 33 and is controlled from the sequence valve 31
It makes the hydraulic control one-way valve 33 to open, while oil liquid is followed by the hydraulic control one-way valve 33, second one-way valve 4 to output end,
The accumulator group 2 is in tapping state at this time；Pressure value at the P1 mouth of the accumulator group 2 is with the accumulator group
2 tapping and when gradually decreasing down the setting pressure lower than the pilot operated directional control valve 32, the left side oil of the pilot operated directional control valve 32
Mouth is closed and right side hydraulic fluid port is opened, and the oil liquid in oil circuit between the pilot operated directional control valve 32 and the hydraulic control one-way valve 33 passes through
The right side hydraulic fluid port of the pilot operated directional control valve 32 is back in fuel tank 5, and the hydraulic control one-way valve 33 is closed, 2 weight of accumulator group
Newly it is in filling liquid state；To realize hydraulic system pressure autonomous stabilisation control, without artificial regulatory, be not required to be powered, no
It is influenced by external wave size, and then effectively increases generating efficiency.
It should be understood that various information are described in the present invention using term " first ", " second " etc., but these information
It should not necessarily be limited by these terms, these terms are only used to for same type of information being distinguished from each other out.For example, not departing from the present invention
In the case where range, " first " information can also be referred to as " second " information, and similar, " second " information can also be referred to as
" first " information.
The above is only the preferred embodiment of the present invention, it is noted that those skilled in the art are come
It says, without departing from the technical principles of the invention, several improvement and replacement can also be made, these are improved and replacement is also answered
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of pressure autonomous control hydraulic system, which is characterized in that including the first check valve, accumulator group, automatic control portion
Divide, second one-way valve and fuel tank, the import connection hydraulic oil input terminal of first check valve, first check valve go out
Mouth is sequentially connected P1 mouthfuls of the accumulator group, automatically controls part；
The automatic control part includes sequence valve, pilot operated directional control valve and hydraulic control one-way valve, P1 mouthfuls of connection institutes of the accumulator group
A1 mouthfuls of sequence valve are stated, described sequence valve B1 mouthfuls are connected with pilot operated directional control valve left position hydraulic fluid port, P2 mouthfuls, the pilot operated directional control valve
A2 mouthfuls are connected with described hydraulic control one-way valve X mouthfuls；
P1 mouthfuls of the accumulator group is also connected with described hydraulic control one-way valve B3 mouthfuls, and described hydraulic control one-way valve A3 mouthfuls single with described second
It is connected to valve import, the second one-way valve outlet is hydraulic oil output end；Described sequence valve Y1 mouthfuls, T mouthfuls of pilot operated directional control valve, the right side
Position hydraulic fluid port and Y2 mouthfuls of hydraulic control one-way valve be connected to fuel tank；The setting pressure of the accumulator group is less than setting for the sequence valve
Constant-pressure, the setting pressure of the pilot operated directional control valve are slightly larger than the setting pressure of the accumulator group and are less than the sequence valve
Set pressure.
2. pressure autonomous control hydraulic system as described in claim 1, which is characterized in that it further include overflow valve, the overflow
Valve import is connected for P1 mouthfuls with the accumulator group, and the overflow valve outlet is end of draining the oil.
3. pressure autonomous control hydraulic system as described in claim 1, which is characterized in that the automatic control part further includes
Adjustable damper valve, the adjustable damper valve are arranged on the oil circuit between the accumulator group and the sequence valve.
4. pressure autonomous control hydraulic system as described in claim 1, which is characterized in that first check valve and the storage
The first survey press oil port is provided on oil circuit between energy device group.
5. pressure autonomous control hydraulic system as described in claim 1, which is characterized in that the hydraulic control one-way valve and described the
The second survey press oil port is provided on oil circuit between two check valves.
6. pressure autonomous control hydraulic system as described in claim 1, which is characterized in that the setting pressure of the accumulator group
For 2.8MPa, the pilot operated directional control valve sets pressure as 3MPa, and the sequence valve sets pressure as 5MPa, the overflow valve
Set pressure as 6MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811046101.7A CN109139574B (en) | 2018-09-07 | Pressure autonomous control hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811046101.7A CN109139574B (en) | 2018-09-07 | Pressure autonomous control hydraulic system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109139574A true CN109139574A (en) | 2019-01-04 |
| CN109139574B CN109139574B (en) | 2024-11-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944834A (en) * | 2019-03-27 | 2019-06-28 | 山东大学 | A kind of floating body can automatic dive and floating wave energy generating set hydraulic control system and control method |
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