CN205639180U - Overflow valve overflow loss recovery and system of recycling - Google Patents
Overflow valve overflow loss recovery and system of recycling Download PDFInfo
- Publication number
- CN205639180U CN205639180U CN201620406226.6U CN201620406226U CN205639180U CN 205639180 U CN205639180 U CN 205639180U CN 201620406226 U CN201620406226 U CN 201620406226U CN 205639180 U CN205639180 U CN 205639180U
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- CN
- China
- Prior art keywords
- valve
- overflow
- oil
- reversal
- overflow valve
- Prior art date
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- Withdrawn - After Issue
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
- B30B15/163—Control arrangements for fluid-driven presses for accumulator-driven presses
-
- 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
-
- 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
- F15B1/027—Installations or systems with accumulators having accumulator charging devices
-
- 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
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
-
- 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
- F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
- F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
-
- 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/625—Accumulators
-
- 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
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/88—Control measures for saving energy
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses an overflow valve overflow loss recovery and system of recycling, including the main pump, the oil tank, the pneumatic cylinder, three check valve, three overflow valve, five switching -over valves and two hydraulic accumulator, through combining of above -mentioned spare part, the realization is to the storage and release integration function of overflow valve port overflow loss energy, furthermore, two energy storage wares have been set up, utilize the setting that the pressure rating of two energy storage wares can be different, it retrieves to realize the two -stage of overflow loss, the recovery pressure scope of overflow pressure loss has been enlarged, the impact to the system has been reduced when mending oil simultaneously again.
Description
Technical field
This utility model relates to a kind of overflow valve overflow loss recycle and reuse system.
Background technology
The general connected tank of outlet of ratio (conventional) overflow valve, overflow valve works, and its valve port loss pressure reduction is
The inlet pressure of overflow valve, oil pressure relief the biggest grade, and the loss of valve port pressure reduction is the biggest, and excess flow is with hydraulic pressure system
The system difference of type and different, along with the trend of hydraulic system grade high-pressure trend, it will be tighter that overflow is lost problem
Weight.Actual condition in the spill losses of overflow valve and the type of hydraulic system, work process and operator's
Mode of operation is relevant.By the function of overflow valve, overflow loss is largely divided into pressure-regulating overflow loss to damage with safety overflow
Consumption.In inlet throttle speed governing and outlet throttle timing loop, overflow valve plays overflow voltage regulation function, has portion all the time
Separatory force feed passes through overflow valve oil sump tank, and therefore overflow valve exists overflow loss all the time.Overflow valve plays relief valve and makees
Used time, although only under some operating mode, overflow valve just can work, but there is overflow loss too.At present
Such as traditional energy-conserving hydraulic drive system such as positive flow technology, minus flow technology, load-sensitive technology broadly falls into
Flux coupling assembly system, although hydraulic crawler excavator capacity usage ratio can be improved to a certain extent, but be more
Solve hydraulic system throttling loss problem, or mated by flow optimization, reduce as far as possible by overflow valve port
Flow, the most fundamentally solve overflow element self overflow loss problem；Current various Energy Recovery Technology
Mainly solve energy loss problem at restriction.Conventional overflow valve overflow pressure reduction loss can be passed through a storage
Recycle and reuse can be carried out by device, but the pressure recovery scope of an accumulator is little, and overflow at regulation relief valve
Flowing pressure is when high pressure reduces to low pressure, and accumulator has greater impact to working connection.
Utility model content
This utility model provides a kind of overflow valve overflow loss recycle and reuse system, which overcomes background skill
Overflow valve overflow loss deficiency existing for recovery system in art.
This utility model solves being the technical scheme is that of its technical problem
A kind of overflow valve overflow loss recycle and reuse system, including main pump, fuel tank, hydraulic cylinder, the first list
To valve, the second check valve, the 3rd check valve, the first overflow valve, the second overflow valve, the 3rd overflow valve, first
Reversal valve, the second reversal valve, the 3rd reversal valve, the 4th reversal valve, the 5th reversal valve, the first hydraulic accumulator
With the second hydraulic accumulator, hydraulic cylinder is divided into rod chamber and rodless cavity by piston；This main pump oil-in connected tank,
First check valve oil-in connects main pump oil-out, the first check valve oil-out connect the 4th reversal valve oil inlet P,
One overflow valve oil-in, the second check valve oil-out；4th reverse valve oil head A connects the rodless cavity of hydraulic cylinder,
4th reverse valve oil head B connects the rod chamber of hydraulic cylinder, the 4th reverse valve oil head T connected tank；This first overflow valve
Oil-out connects the first reversal valve oil inlet P, and the first overflow valve overfall takes back fuel tank；This first reverse valve oil head A
Connecing the 3rd check valve oil-in, the first reverse valve oil head B connected tank, the first reversal valve epicoele controls mouth K1 and the
One overflow valve oil-in, the second reversal valve control mouth K3 and the 3rd reversal valve controls mouth K4 and communicates, the first commutation
Valve cavity of resorption controls mouth K2 and the 3rd check valve oil-out communicates；3rd check valve oil-out and the second reversal valve enter
Hydraulic fluid port A, the 3rd reversal valve oil-in A, the 5th reverse valve oil head A communicate；This second reverse valve oil head B and
One hydraulic accumulator, the second overflow valve communicate；3rd reverse valve oil head B and the second hydraulic accumulator, the 3rd
Overflow valve communicates；This second overflow valve and the 3rd overflow valve oil-out all connected tanks；This second check valve oil-in
Meet the 5th reverse valve oil head B.
Among one embodiment: the 4th reversal valve is the first solenoid directional control valve, the 5th reversal valve is the second electromagnetism
Reversal valve.
Among one embodiment: also including driving motor, this driving motor coaxle is in transmission connection main pump.
Among one embodiment: this main pump is dosing pump or variable pump.
Among one embodiment: this first overflow valve is pilot operated compound relief valve, this overfall is guide's oil-out, should
Guide's oil-out individually leaks and takes back fuel tank.
Among one embodiment: this second overflow valve and the 3rd overflow valve use pilot operated compound relief valve or Direct Action Type overflow
Valve.
Among one embodiment: the automatically controlled and driving motor in synchrony of this second solenoid directional control valve, by driving motor to open
Move and make the second solenoid directional control valve upper work of energising.
Among one embodiment: this second overflow valve oil pressure relief and the second reversal valve spring pressure is equal and be S1,
3rd overflow valve oil pressure relief is S2, and the 3rd reversal valve spring pressure is S3, this S2 < S3 < S1.
The technical program is compared with background technology, and it has the advantage that
Overflow loss recycle and reuse system, including main pump, fuel tank, hydraulic cylinder, three check valves, three
Overflow valve, three reversal valves, two solenoid directional control valves and two hydraulic accumulators, having by above-mentioned parts
Machine combines, it is achieved storage and the release integrated function to overflow valve port overflow loss of energy, further, arranges
Two accumulators, utilize the setting that the pressure rating of two accumulators can be different, it is achieved the two-stage of overflow loss
Reclaim, expand the pressure recovery scope of oil pressure relief loss, during repairing, decrease again the impact to system simultaneously.
First overflow valve is pilot operated compound relief valve, can need to select different pressures grade (set pressure) according to operating mode,
Reduce the accumulator release oil circuit impact to working connection by the hydraulic accumulator of coupling relevant pressure grade, carry
The high stability of hydraulic system, expands the pressure recovery scope of overflow loss, improves energy regenerating and utilize
Rate.
4th reversal valve, the 5th reversal valve use solenoid directional control valve, control convenient, quick.
Accompanying drawing explanation
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is this utility model overflow valve based on hydraulic accumulator overflow loss secondary recovery and reutilization system
Structural representation；
Fig. 2 is the overflow set pressure of the first overflow valve energy regenerating when 30MPa and release schematic diagram；
Fig. 3 is that the first overflow set pressure drops to 20MPa energy regenerating and release schematic diagram from 30MPa；
Fig. 4 is that the first overflow set pressure drops to 10MPa energy regenerating and release schematic diagram from 20MPa；
Fig. 5 is that the first overflow set pressure is raised to 20MPa energy regenerating and release schematic diagram from 10MPa；
Fig. 6 is that the first overflow set pressure is raised to 30MPa energy regenerating and release schematic diagram from 20MPa；
Label declaration:
1-drives motor；2-main pump；4-the first check valve；5-the second solenoid directional control valve；6-fuel tank 11-second
Check valve；13-the first overflow valve；14-the first reversal valve；15-the 3rd check valve；18-the first solenoid directional control valve；
19-hydraulic cylinder；20-the second reversal valve；21-the 3rd reversal valve；22-the first accumulator；23-the second accumulator；
24-the second overflow valve；25-the 3rd overflow valve.
Detailed description of the invention
Overflow valve overflow based on hydraulic accumulator loss secondary recovery and reutilization system, as it is shown in figure 1, bag
Include driving motor 1, main pump 2, fuel tank 6, hydraulic cylinder the 19, first solenoid directional control valve the 18, second electromagnetic switch
Valve the 5, first check valve the 4, second check valve the 11, the 3rd check valve the 15, first overflow valve the 13, second overflow
Valve the 24, the 3rd overflow valve the 25, first reversal valve the 14, second reversal valve the 20, the 3rd reversal valve 21, first stores
Energy device the 22, second accumulator 23, is set piston in this hydraulic cylinder 19, is divided into hydraulic cylinder 19 without bar by piston
Chamber and rod chamber.
This coaxially connected main pump of driving motor 12 is can drive main pump 2 to realize fuel feeding, and main pump 2 oil-in connects oil
Case 6, main pump 2 oil-out connects the first check valve 4 oil-in, and the first check valve 4 oil-out and the first electromagnetism change
All communicate to valve 18 oil-in 18P, the first overflow valve 13 oil-in and the second check valve 11 oil-out, make oil
Oil in case 6 can be through the first check valve 4 to the first solenoid directional control valve 18 oil-in 18P or the first overflow valve 13
The fuel feeding such as oil-in.Main loop includes the first check valve 4 oil-out and the first solenoid directional control valve 18 oil-in
18P communicates loop.
This first solenoid directional control valve 18 oil-in 18P connects the first check valve 4 oil-out, the first solenoid directional control valve
18 hydraulic fluid port 18A connect hydraulic cylinder 19 rodless cavity, and the first solenoid directional control valve hydraulic fluid port 18B connects hydraulic cylinder rod chamber, the
One solenoid directional control valve 18 hydraulic fluid port 18T connected tank, movable by the first solenoid directional control valve 18 commutation control piston.
This first overflow valve 13 oil-in connects the first check valve 4 oil-out, and the first overflow valve 13 oil-out connects
One reversal valve 14 oil-in 14P, the first overflow valve 13 is pilot operated compound relief valve, and overfall is guide's oil-out,
Guide's oil-out individually leaks and takes back fuel tank 6.This first reversal valve 14 hydraulic fluid port 14A connects the 3rd check valve 15 and enters
Hydraulic fluid port, the first reversal valve 14 hydraulic fluid port 14B connected tank 6, the first reversal valve 14 epicoele controls mouth K1 and first and overflows
Flow valve 13 oil-in, the second reversal valve 20 controls mouth K3 and the 3rd reversal valve 21 controls mouth K4 and communicates, and first
Reversal valve 14 cavity of resorption controls mouth K2 and the 3rd check valve 15 oil-out communicates；3rd check valve 15 oil-out
With the second reversal valve 20 oil-in 20A, the 3rd reversal valve 21 oil-in 21A, the second solenoid directional control valve 5 hydraulic fluid port
5A communicates；This second reversal valve 20 hydraulic fluid port 20B and first hydraulic accumulator the 22, second overflow valve 24 communicate；
3rd reversal valve 21 hydraulic fluid port 21B and the second hydraulic accumulator the 23, the 3rd overflow valve 25 communicate；This second overflow
Stream valve 24 and the 3rd overflow valve 25 oil-out all connected tanks；This second check valve 11 oil-in connects the second electromagnetism and changes
To valve 5 hydraulic fluid port 5B.
This second solenoid directional control valve 5 uses Synchronization Control with driving motor 1, drives motor 1 to open, the second electricity
Magnetic reversal valve 5 commutates upper work, the Releasing loop connection of accumulator to working connection, the second solenoid directional control valve 5
Control the break-make of Releasing loop；Second overflow valve 24 oil pressure relief and the second reversal valve spring pressure are S1,
This S1 is as 28MPa, and the 3rd overflow valve 24 oil pressure relief is S2, and this S2 is as 18MPa, the 3rd reversal valve
Spring pressure is S3, and this S3 is as 22MPa, and four pressure suitably can be adjusted according to system pressure grade difference
Whole, when setting up the first overflow valve 13 oil pressure relief, it and the second overflow valve 24 or the 3rd overflow valve 25 overflow
Differing pressure 1-2MPa, so that the first reversal valve 14 can normally work.3rd overflow valve set pressure from
S5 to S4, this S5 are less than S2, as 10MPa, this S4 more than S1, as 30MPa.
This first hydraulic accumulator 22 can be one, multiple accumulator or the combination of multiple accumulator, the second liquid
Pressure accumulator 23 can be one, multiple accumulator or the combination of multiple accumulator.
The oil circuit that recycle and reuse system of the present utility model can be suitable for includes inlet throttle regulator circuit, outlet
These loops are produced by throttling speed control circuit, import and export linkage throttling speed control circuit and by-pass throttle speed governing etc.
Pressure-regulating overflow loss or safety overflow loss carry out energy regenerating and recycling, and it can be used for excavator, loader
Reclaim and recycling etc. the overflow valve overflow loss of energy of engineering machinery and other hydraulic test.
A kind of overflow valve overflow based on hydraulic accumulator of this utility model loss secondary recovery has with reutilization system
Body running principle is as follows:
When system does not work, the first solenoid directional control valve 18 in middle position, the second solenoid directional control valve 5 upper,
Second reversal valve 20 in right position, the 3rd reversal valve 21 in left position, the first accumulator 22 and the second accumulator 23
Initial pressure be all 0MPa.During work, whether overflow set pressure according to the first overflow valve 13 changes and is divided into
Set pressure raises and set pressure reduces by two kinds of operating modes.
1. the first overflow valve set pressure reduces
(1) as in figure 2 it is shown, after driving motor 1 to start, the second solenoid directional control valve 5 is operated in bottom, 5A
Connect with 5B.The initial set pressure of the first overflow valve 13 is S4, and this S4 is more than S1, and S4 is as 30MPa,
System working connection pressure is also 30MPa, and it is that 30MPa is more than spring force that the second reversal valve 20 controls mouth K3 pressure
28MPa, left position work 20A Yu 20B connect；It is that 30MPa is more than bullet that 3rd reversal valve 21 controls mouth K4 pressure
Spring force 22MPa, right position work 21A Yu 21B disconnects；First reversal valve 14 cavity of resorption controls mouth K2 pressure and is equal to
First accumulator 22 pressure is 0MPa, and it is that 30MPa is more than cavity of resorption control mouth K2 that its epicoele controls mouth K1 pressure
Pressure, is operated in upper 14P Yu 14A and connects；Now the first overflow valve 13 overfall and the first accumulator 22
Oil-in is connected.When system pressure is more than 30MPa, overflow fluid just pass sequentially through the first reversal valve 14,
Three check valve the 15, second reversal valves 20 arrive the first accumulator 22 and carry out oil-filled, when the first accumulator 22 fills
When oil completes, unnecessary fluid can pass through the first overflow valve 24 oil sump tank 6, and check valve 15 can prevent accumulator fluid
Flow back to the first overflow valve 13.When working connection pressure reduces, the first accumulator 22 can pass sequentially through second and change
To valve the 20, second solenoid directional control valve the 5, second check valve 11, working connection is carried out repairing.
(2) as it is shown on figure 3, when the set pressure of the first overflow valve 13 is transferred to 20MPa from 30MPa, second
The left chamber of reversal valve 20 controls mouth K3 pressure and becomes 20MPa less than spring force 28MPa, right position work 20A and 20B
Disconnect；It is that 20MPa is less than spring force 22MPa, left position work 21A that the 3rd right chamber of reversal valve controls mouth K4 pressure
Connect with 21B；First reversal valve controls mouth K2 pressure and is equal to the second accumulator 23 pressure 0MPa, and it controls mouth
K1 pressure is that 20MPa is more than the most upper work of K2, now the first overflow valve 13 overfall and the second accumulator
22 oil-ins are connected.When system pressure is more than 20MPa, overflow fluid just pass sequentially through the first reversal valve 14,
3rd check valve the 15, the 3rd reversal valve 21 arrives the second accumulator 23 and carries out oil-filled, when the second accumulator 23
Oil-filled when completing unnecessary fluid can pass through the 3rd overflow valve 25 oil sump tank 6.When working connection pressure reduces, second
Accumulator 22 can pass sequentially through the 3rd reversal valve the 21, second solenoid directional control valve the 5, second check valve 11 to main oil
Road repairing.
(3) as shown in Figure 4, when the set pressure of the first overflow valve 13 is transferred to 10MPa, the second reversal valve 20
Control mouth K3, the 3rd reversal valve 21 controls mouth K4 pressure and is all 10MPa and is both less than their each spring force,
Second reversal valve 20 disconnects, and the 3rd reversal valve 21 is still connected.When system pressure drops to 10MPa, K1 is
10MPa, K2 are 18MPa, and the first reversal valve 14 controls mouth pressure K1 less than K2, bottom work 14P and 14T
Connecting, overflow fluid can direct oil sump tank 6.
2. the first overflow valve set pressure raises
(1) as it is shown in figure 5, the first overflow valve 13 set pressure is raised to 20MPa, working connection pressure from 10MPa
Being raised to 20MPa, control mouth K1, K3 and K4 pressure and all become 20MPa, the second reversal valve 20 controls mouth K3
Pressure is less than spring force 28MPa, right position work 20B Yu 20A and disconnects, and the 3rd reversal valve 21 controls mouth K4 pressure
Power is less than spring force 22MPa, left position work 21B with 21A and connects；K2 is 10MPa, and the first reversal valve 14 is controlled
Donsole pressure K1 connects more than K2, upper work 14P Yu 14A.Now the first overflow valve 13 overfall and
Two accumulators 23 connect, and can complete the second accumulator 23 is oil-filled, and internal pressure oil is to working connection
Release repairing during low pressure.
(2) as shown in Figure 6, the first overflow valve 13 set pressure is raised to 30MPa, working connection pressure from 20MPa
Being raised to 30MPa, control mouth K1, K3 and K4 pressure and all become 30MPa, the second reversal valve 20 controls mouth K3
Pressure is more than spring force 28MPa, left position work 20B Yu 20A and connects, and the 3rd reversal valve 21 controls mouth K4 pressure
Power is more than spring force 22MPa, right position work 21B Yu 21A and disconnects；First reversal valve 14 controls mouth pressure K1
More than K2, the most upper work 14P Yu 14A connects.Now the first overflow valve 13 overfall and the first accumulation of energy
Device 22 connects, and can complete the first accumulator 22 is oil-filled, and internal pressure oil is when working connection low pressure
Release repairing.
The above, only this utility model preferred embodiment, therefore it is real to limit this utility model according to this
The scope executed, the equivalence change i.e. made according to this utility model the scope of the claims and description and modification, all should
Still belong in the range of this utility model contains.
Claims (8)
1. overflow valve overflow loss recycle and reuse system, it is characterised in that: include main pump, fuel tank,
Hydraulic cylinder, the first check valve, the second check valve, the 3rd check valve, the first overflow valve, the second overflow valve,
3rd overflow valve, the first reversal valve, the second reversal valve, the 3rd reversal valve, the 4th reversal valve, the 5th commutation
Valve, the first hydraulic accumulator and the second hydraulic accumulator, hydraulic cylinder is divided into rod chamber and rodless cavity by piston；
This main pump oil-in connected tank, the first check valve oil-in connects main pump oil-out, and the first check valve oil-out connects
4th reversal valve oil inlet P, the first overflow valve oil-in, the second check valve oil-out；4th reversal valve
Hydraulic fluid port A connects the rodless cavity of hydraulic cylinder, and the 4th reverse valve oil head B connects the rod chamber of hydraulic cylinder, the 4th reversal valve
Hydraulic fluid port T connected tank；This first overflow valve oil-out connects the first reversal valve oil inlet P, the first overflow valve overflow
Mouth takes back fuel tank；This first reverse valve oil head A connects the 3rd check valve oil-in, and the first reverse valve oil head B connects
Fuel tank, the first reversal valve epicoele controls mouth K1 and the first overflow valve oil-in, the second reversal valve control mouth K3
Controlling mouth K4 with the 3rd reversal valve to communicate, the first reversal valve cavity of resorption controls mouth K2 and the 3rd check valve oil-out
Communicate；3rd check valve oil-out and the second reversal valve oil-in A, the 3rd reversal valve oil-in A, the 5th
Reverse valve oil head A communicates；This second reverse valve oil head B and the first hydraulic accumulator, the second overflow valve communicate；
3rd reverse valve oil head B and the second hydraulic accumulator, the 3rd overflow valve communicate；This second overflow valve and
Three overflow valve oil-out all connected tanks；This second check valve oil-in meets the 5th reverse valve oil head B.
2. a kind of overflow valve overflow loss recycle and reuse system as claimed in claim 1, its feature exists
In: the 4th reversal valve is the first solenoid directional control valve, and the 5th reversal valve is the second solenoid directional control valve.
3. a kind of overflow valve overflow loss recycle and reuse system as claimed in claim 1, its feature exists
In: also including driving motor, this driving motor coaxle is in transmission connection main pump.
4. a kind of overflow valve overflow loss recycle and reuse system as claimed in claim 1, its feature exists
In: this main pump is dosing pump or variable pump.
5. a kind of overflow valve overflow loss recycle and reuse system as claimed in claim 1, its feature exists
In: this first overflow valve is pilot operated compound relief valve, and this overfall is guide's oil-out, this guide's oil-out list
Solely leak and take back fuel tank.
6. a kind of overflow valve overflow loss recycle and reuse system as claimed in claim 1, its feature exists
In: this second overflow valve and the 3rd overflow valve use pilot operated compound relief valve or direct-acting overflow valve.
7. a kind of overflow valve overflow loss recycle and reuse system as claimed in claim 2, its feature exists
In: the automatically controlled and driving motor in synchrony of this second solenoid directional control valve, by driving electric motor starting to make the second electromagnetism
The reversal valve upper work of energising.
8. a kind of overflow valve overflow as according to any one of claim 1 to 7 is lost recycle and reuse system
System, it is characterised in that: this second overflow valve oil pressure relief and the second reversal valve spring pressure is equal and be S1,
3rd overflow valve oil pressure relief is S2, and the 3rd reversal valve spring pressure is S3, this S2 < S3 < S1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620406226.6U CN205639180U (en) | 2016-05-06 | 2016-05-06 | Overflow valve overflow loss recovery and system of recycling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620406226.6U CN205639180U (en) | 2016-05-06 | 2016-05-06 | Overflow valve overflow loss recovery and system of recycling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205639180U true CN205639180U (en) | 2016-10-12 |
Family
ID=57049329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620406226.6U Withdrawn - After Issue CN205639180U (en) | 2016-05-06 | 2016-05-06 | Overflow valve overflow loss recovery and system of recycling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205639180U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805097A (en) * | 2016-05-06 | 2016-07-27 | 华侨大学 | Recycling and reusing system of overflow losses of overflow valves |
| CN108383039A (en) * | 2018-02-27 | 2018-08-10 | 王素均 | A kind of energy-saving stepping type lifter structure hydraulic control system |
-
2016
- 2016-05-06 CN CN201620406226.6U patent/CN205639180U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805097A (en) * | 2016-05-06 | 2016-07-27 | 华侨大学 | Recycling and reusing system of overflow losses of overflow valves |
| CN108383039A (en) * | 2018-02-27 | 2018-08-10 | 王素均 | A kind of energy-saving stepping type lifter structure hydraulic control system |
| CN108383039B (en) * | 2018-02-27 | 2019-08-13 | 王素均 | A kind of energy-saving stepping type lifter structure hydraulic control system |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20161012 Effective date of abandoning: 20170721 |