CN106015655B - A kind of automatic Regulation multipath hydraulic change-over valve and its operating method - Google Patents
A kind of automatic Regulation multipath hydraulic change-over valve and its operating method Download PDFInfo
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- CN106015655B CN106015655B CN201610545228.8A CN201610545228A CN106015655B CN 106015655 B CN106015655 B CN 106015655B CN 201610545228 A CN201610545228 A CN 201610545228A CN 106015655 B CN106015655 B CN 106015655B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/24—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an electromagnetically-operated valve, e.g. for washing machines
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Abstract
The present invention is a kind of hydraulicdirectional control valve, in particular to a kind of automatic Regulation multipath hydraulic change-over valve and its operating method.Direct solenoid check valve component, accumulation of energy core assembly, combined pressure regulating valve component, range pressure interlocking valve module and control valve board assembly are equipped with including valve body, in the valve body.A kind of automatic Regulation multipath hydraulic change-over valve and its operating method are compact-sized, functional diversities, improve reliability, promote whole service performance.
Description
Technical field
The present invention is a kind of hydraulicdirectional control valve, in particular to a kind of automatic Regulation multipath hydraulic change-over valve and its operation side
Method.
Background technique
Existing field of road engineering machinery vehicle, starting, gear shift and commutation when, to reach vehicle stability, be all using
The all-hydraulic transmission that hydraulic motor drives or the mechanical gear kind of drive with fluid torque-converter.The machinery of the above-mentioned kind of drive
System of vehicle transmission low efficiency, the considerable part energy of engine are converted to thermal energy volatilization, and need big cooling system heat dissipation.
Using the vehicle of full mechanical driving speed changing box, transmission efficiency is improved.To realize transmission stability, need starting
Manually-operated clutch is set between machine and gearbox, and the stationarity of vehicle depends on the qualification of operation clutch, people
Work operation clutch increases the labor intensity of operator, and vehicle stability has differences, and easily leads to transmission system impact, influences
Construction quality and vehicle service life.
Summary of the invention
The present invention mainly solves the deficiencies in the prior art, compact-sized, makes inside full mechanical driving speed changing box
Wet clutch have buffering binding function, according to wet clutch transmit torque variation, reversal valve can be with Auto-matching
Corresponding system pressure, reflection is on vehicle, with the variation of vehicular load, the pressure of reversal valve adjust automatically hydraulic system,
A kind of automatic Regulation multipath hydraulic change-over valve and its operating method of power drive system held stationary transmission.
Above-mentioned technical problem of the invention is mainly to be addressed by following technical proposals:
A kind of automatic Regulation multipath hydraulic change-over valve, including valve body are equipped with direct solenoid check valve group in the valve body
Part, accumulation of energy core assembly, combined pressure regulating valve component, range pressure interlocking valve module and control valve board assembly；
The direct solenoid check valve component includes gear spool I, gear spool II, gear spool III and gear spool
IV, reset spring, gear valve are respectively equipped in the gear spool I, gear spool II, gear spool III and gear spool IV
Core I is controlled by direct solenoid check valve M1, and gear spool II is controlled by direct solenoid check valve M2, and gear spool III is by direct current
Magnetic check valve M3 control, gear spool IV are controlled by direct solenoid check valve M4；
It is equipped with A output oil duct, B output oil duct and C in the gear spool I and exports oil duct, the gear spool IV
In be equipped with D output oil duct, E output oil duct and F and export oil duct, the described A output oil duct, B output oil duct and C output oil duct are formed
Upper control unit, the D output oil duct, E output oil duct and F output oil duct form lower control unit, the upper control list
Member is controlled by gear spool I and gear spool II, and the lower control unit is controlled by gear spool III and gear spool IV；
The control valve board assembly includes control valve plate, is equipped with oil inlet passage, the control in the control valve plate
It is equipped in valve plate processed and passes through control valve sheet reset spring with the oil inlet passage non-return valve that mutually activity blocks, the non-return valve
Carry out elastic connection；
The accumulation of energy core assembly includes accumulation of energy spool, and energy-storaging spring, the storage are equipped in the accumulation of energy spool
Energy-storage pressure chamber can be formed between spool and control valve plate；
The combined pressure regulating valve component includes system pressure control valve core and delay pressure valve core, the system
Pressure spring, the gap between the system pressure control valve core and valve body are equipped between pressure-control valve core and delay pressure valve core
System pressure chamber is formed, the gap between the delay pressure valve core and valve body forms delay pressure chamber；
The system pressure chamber, energy-storage pressure chamber are respectively communicated with the oil back chamber of drainback passage in control valve plate, described
It controls the oil outlet chamber in valve plate, delay pressure chamber, energy-storage pressure chamber and oil back chamber and forms circulation loop；
The range pressure interlocking valve module includes interlocking spool I and interlocking spool II, and the interlocking spool I enters
Mouth connects A output oil duct and B output oil duct, the entrance connection C output oil duct of the interlocking spool II and going out for interlocking spool I
Mouthful, oil inlet passage is connected in the outlet of the interlocking spool II.
Preferably, the gear spool I, gear spool II, gear spool III and gear spool IV are in from bottom to top
And column distribution；The interlocking spool I and interlocking spool II are in distribution side by side up and down.
The operating method of automatic Regulation multipath hydraulic change-over valve is carried out by step:
(1), it assembles:
According to require in valve body install direct solenoid check valve component, accumulation of energy core assembly, combined pressure regulating valve group
Part, range pressure interlocking valve module and control valve board assembly, and test pressure regulation is carried out to oil duct each in valve body, it is ensured that normal fortune
Row；
(2), whole control analysis processing:
Direct solenoid check valve M1 controls gear spool I, and direct solenoid check valve M2 controls gear spool II, direct solenoid
Check valve M3 controls gear spool III, and direct solenoid check valve M4 controls gear spool IV；
Gear spool I and the combination control tri- output oil ducts of D, E, F of gear spool II I, gear spool III and gear spool
IV combination control tri- output oil ducts of A, B, C；
Each gear valve core inside is respectively equipped with reset spring, when direct solenoid check valve M1, M2, M3 and M4 are powered off,
Gear spool I, II, III and IV is in home position under the elastic force effect of respective reset spring；
Pressure oil from oil pump acts on pressure-control valve core and pressure-control valve core is pushed to move to the right, opens oil return
Channel, the elastic force and system pressure of pressure spring keep balance, and collective effect is in pressure-control valve core, the position of pressure-control valve core
The size of control drainback passage is set, pressure spring realizes overflow by pressure-control valve core；
When the output of gear valve no pressure, accumulator valve is armed state；
Pressure oil from A output oil duct enters control valve plate oil input channel through interlocking spool I and interlocking spool II, comes from B
The pressure oil for exporting oil duct enters control valve plate oil input channel through interlocking spool I and interlocking spool II, the pressure from C output oil duct
Oil enters control valve plate oil input channel through interlocking spool II；Under the collective effect for interlocking spool I and interlocking spool II, in A, B, C tri-
In a output oil duct, there can only be a road binders therein to enter control valve plate oil input channel, and any road binders enters control valve plate oil inlet
When road, in addition two road binders connect drainback passage；
When the output of gear valve no pressure, the oil inlet passage for controlling valve plate connects drainback passage, and non-return valve is in spring
It is in close state under elastic force effect；
(3), each direct solenoid check valve Operations Analyst:
When direct solenoid check valve M1 is powered: system pressure oil enters gear spool I after direct solenoid check valve M1
Left side oil pocket pushes gear spool I that the elastic force of reset spring is overcome to move to the right, and system pressure oil enters A output oil duct, and
Enter control valve plate oil input channel by interlocking spool I and interlocking spool II, the oil into control valve plate enters by damping oil duct
Be delayed pressure chamber and energy-storage pressure chamber, and the oil for the pressure chamber that is delayed pushes delay pressure valve core to move to the left, energy-storage pressure chamber
Oil pushes accumulation of energy spool to move to the left, and system pressure enters boost phase, A export oil duct pressure it is synchronous with system pressure on
It rises；
Direct solenoid check valve M4 is powered, and it is left that system pressure oil enters gear spool III after direct solenoid check valve M4
Side oil pocket pushes gear spool III that the elastic force of reset spring is overcome to move to the right, and system pressure oil enters D output oil duct, and D is defeated
The pressure of oil road is synchronous with system pressure to be risen；
When direct solenoid check valve M2 is powered: system pressure oil enters gear spool II after direct solenoid check valve M2
Left side oil pocket pushes gear spool II that the elastic force of reset spring is overcome to move to the right, and system pressure oil enters C output oil duct,
And by interlocking spool I and interlocking spool II enter control valve plate oil input channel, into control valve plate oil by damping oil duct into
Enter to be delayed pressure chamber and energy-storage pressure chamber, and the oil for the pressure chamber that is delayed pushes delay pressure valve core to move to the left, energy-storage pressure chamber
Oil push accumulation of energy spool to move to the left, system pressure enters boost phase, and the pressure that C exports oil duct is synchronous with system pressure
Rise；
When direct solenoid check valve M3 is powered: system pressure oil enters gear spool III after direct solenoid check valve M3
Left side oil pocket pushes gear spool III that the elastic force of reset spring is overcome to move to the right, and system pressure oil enters F output oil duct, F
Export the pressure rising synchronous with system pressure of oil duct；
Direct solenoid check valve M1 and M2 are powered: system pressure oil enters gear after direct solenoid check valve M1 and M2
II left side oil pocket of spool I and gear spool pushes gear spool I and gear spool II to overcome the elastic force of reset spring sidesway to the right
Dynamic, system pressure oil enters B output oil duct, and enters control valve plate oil input channel by interlocking spool I and interlocking spool II, enters
The oil of control valve plate enters delay pressure chamber and energy-storage pressure chamber by damping oil duct, and the oil for the pressure chamber that is delayed pushes delay pressure
Spool moves to the left, and the oil of energy-storage pressure chamber pushes accumulation of energy spool to move to the left, and system pressure enters boost phase, and B is defeated
The pressure of oil road is synchronous with system pressure to be risen；
Direct solenoid check valve M3 and M4 are powered, and system pressure oil enters gear after direct solenoid check valve M3 and M4
IV left side oil pocket of spool III and gear spool pushes gear spool III and gear spool IV to overcome the elastic force of reset spring to the right
Mobile, system pressure oil enters E output oil duct, and E exports the pressure rising synchronous with system pressure of oil duct.
When A exports oil duct and D output oil duct pressure plateau, direct solenoid check valve M1 and direct solenoid check valve
M4 is powered, and gear spool I and gear spool IV are moved to right side operating position, and delay pressure valve core and accumulation of energy spool are moved to a left side
Side operating position, system pressure are constant；
(4), when working:
Pressure oil from oil pump acts on pressure-control valve core and pressure-control valve core is pushed to move to the right, opens oil return
Channel, the elastic force and system pressure of pressure spring keep balance, and collective effect is in pressure-control valve core, the position of pressure-control valve core
The size of control drainback passage is set, pressure spring realizes overflow by pressure-control valve core, realizes original oil pressure；
Pressure oil from gear valve acts on delay pressure valve core and delay pressure valve core is pushed to move to the left, delay pressure
The movement speed of power spool is passed through pressure spring by the elastic effect of system pressure and pressure spring, the movement for the pressure valve core that is delayed
11 promotion control valve cores move to the left, turn down drainback passage, change spillway discharge, regulating system pressure value, the variation of spillway discharge
The speed controlled movement speed in pressure-control valve core, the movement speed of pressure-control valve core be controlled by pressure spring elastic force and
The movement speed of delay pressure valve core, the liquid that the movement speed for the pressure valve core that is delayed is controlled by delay pressure chamber are increased speed,
The liquid of delay pressure chamber, which is increased speed, is controlled by the speed of rising progressively of system pressure；Pressure oil from gear valve acts on simultaneously
Accumulation of energy spool pushes accumulation of energy spool to move to the left, and energy-storaging spring constantly compresses, and the movement speed of accumulation of energy spool is controlled by accumulation of energy
The liquid of pressure chamber is increased speed, and the liquid of energy-storage pressure chamber, which is increased speed, is controlled by the speed of rising progressively of system pressure, accumulator valve
The movement speed of core and the movement speed of delay pressure valve core influence each other, and are changed back by pressure spring and pressure-control valve core
Oily channel sized realizes dynamic overflow variation, reaches automatic Regulation effect；
(6), when boosting work:
The interlocking spool I belonging to the range pressure interlock valve and the pressure oil for interlocking spool II enter the oil of control valve plate
Enter delay pressure chamber and energy-storage pressure chamber by damping oil duct, the oil for the pressure chamber that is delayed pushes delay pressure valve core sidesway to the left
Dynamic, the oil of energy-storage pressure chamber pushes accumulation of energy spool to move to the left, and system pressure enters boost phase；Pressure release phase, control
The oil inlet passage of valve plate processed connects drainback passage, is delayed pressure chamber and the intracavitary pressure oil of energy-storage pressure opens non-return valve, pressure
Power oil quick release, delay pressure valve core and accumulation of energy spool move on to the rightmost side, and non-return valve is closed under the elastic force effect of spring
Drain path, system pressure return to initial pressure state.
Two groups of adjacent gear spools constitute a control unit, and a control unit can control three kinds of oil circuits, a control
Three kinds of oil circuits in unit processed have interlocked relationship；Every group of gear spool side is provided with electromagnet, and electromagnet guides when being powered
Pilot pressure oil pushes gear spool mobile, and gear spool resets under the effect of reset spring elastic force when electromagnet powers off.
There are three kinds of armed states, delay working state and constant pressure working condition states for system pressure chamber.It awaits orders shape
When state, system pressure chamber is sufficiently connect with oil back chamber, and be delayed pressure chamber constant volume, and system pressure cavity volume is with fluid flow
Variation generates corresponding micro variation to maintain system pressure stable state；In delay working state, be delayed pressure chamber volume line
Property increase, pressure spring elastic force and dynamic system pressure interaction, system pressure cavity volume occur nonlinear change, system
To the channel of oil back chamber corresponding variation occurs for pressure chamber, and overflow port size is caused to change, and system pressure generates dynamic change；?
Constant pressure working condition, be delayed pressure chamber constant volume, and system pressure cavity volume generates corresponding with the variation of fluid flow
Micro variation, system pressure maintain steady state.
There are blank states, delay three kinds of states of energy accumulating state and energy storage state for energy-storage pressure chamber.When blank state, accumulation of energy
Pressure chamber is sufficiently connect with oil back chamber, and accumulation of energy spool is placed in initial position under energy-storaging spring resilient force；In delay accumulation of energy
State, energy-storage pressure cavity volume is linearly increasing, and energy-storaging spring elastic force increases continuously, energy-storage pressure intracavitary liquid volume and pressure
Gradually increase, forms energy storage；In energy storage state, energy-storage pressure cavity volume is constant, system pressure chamber and energy-storage pressure chamber pressure
Dynamic balance, the size of stored energy depend on the volume and pressure of energy-storage pressure intracavity liquid.
Valve body is equipped with control valve board assembly, controls valve board assembly and valve body is bolted connection.Control valve board assembly
Oil inlet passage connection multipath hydraulic change-over valve work shelves oil duct, control valve board assembly drainback passage connection oil back chamber, control
The oil outlet chamber and delay pressure chamber, energy-storage pressure chamber and oil back chamber of valve board assembly processed form circulation loop.
Valve body is equipped with range pressure interlock valve, each range pressure chamber of range pressure interlock valve connection, the pressure for the shelves that work
Chamber is connected through range pressure interlock valve with the oil inlet passage inside control valve board assembly, range pressure interlock valve partition control valve plate
The oil inlet passage of component and the pressure chamber and oil back chamber of inoperative shelves.
The multipath hydraulic change-over valve has automatic Regulation function, realizes freely converting between nine gears.
The multipath hydraulic change-over valve is arranged in juxtaposition four spools, is set as two control units, two control units
Different combination oil circuits is controlled respectively, and each combination oil circuit includes three output oil ducts with interlocked relationship.
The multipath hydraulic change-over valve is provided with system pressure control valve core and delay pressure valve core, system pressure control
Spool correspondence system pressure chamber, the corresponding delay pressure chamber of delay pressure valve core, system pressure chamber be connected to the master of hydraulicdirectional control valve into
Oil circuit, delay pressure chamber selectively connection output oil duct, system pressure control valve core and delay pressure valve core realize system pressure
Auto-changing.
The multipath hydraulic change-over valve is provided with accumulation of energy spool, and accumulation of energy spool corresponds to energy-storage pressure chamber, energy-storage pressure chamber
Connection delay pressure chamber, energy-storage pressure intracavity liquid pressure realize at the uniform velocity promotion and quick release by energy-storaging spring.
The multipath hydraulic change-over valve is provided with Multi-oil circuit interlocking spool, and Multi-oil circuit interlocking spool freely moves in valve opening
It is dynamic, it is arranged in parallel on the right side of valve body with delay pressure valve core and accumulation of energy spool.
The multipath hydraulic change-over valve is provided with control valve board assembly, controls valve board assembly and valve body is bolted connection
It connects, control valve board assembly is internally provided with the oil duct of connection delay pressure chamber and energy-storage pressure chamber, damping oil inlet passage and unidirectional
Ball valve is provided with compression spring, non-return valve control delay pressure chamber and the release of energy-storage pressure cavity pressure liquid on non-return valve
Speed.
The multipath hydraulic change-over valve is provided with four groups of DC electromagnetic valves, every group of DC electromagnetic valve and the gear controlled
Valve dislocation arrangement, every group of DC electromagnet is provided with independent control circuit and independent guide inputs oil circuit.
Therefore, a kind of automatic Regulation multipath hydraulic change-over valve provided by the invention and its operating method, compact-sized, function
Diversification improves reliability, promotes whole service performance.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is A output oil duct and D output oil duct pressure uphill process spool position schematic diagram of the present invention；
Fig. 3 is C output oil duct and F output oil duct pressure uphill process spool position schematic diagram of the present invention；
Fig. 4 is B output oil duct and E output oil duct pressure uphill process spool position schematic diagram of the present invention；
Spool position schematic diagram when Fig. 5 is A output oil duct and D output oil duct pressure plateau of the present invention；
Fig. 6 is hydraulic principle figure of the invention；
Fig. 7 is the independent pressure curve graph of combined pressure regulating valve of the invention；
Fig. 8 is accumulator valve independent pressure curve graph of the invention；
Fig. 9 is the system pressure build-up curve figure that the present invention is formed under the collective effect of pressure-regulating valve and accumulator valve.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment: shown in as shown in Figure 1, Figure 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Fig. 9, a kind of automatic Regulation multichannel liquid
Reversal valve, including valve body 1 are pressed, is equipped with direct solenoid check valve component, accumulation of energy core assembly, combination pressure in the valve body 1
Valve assembly, range pressure interlocking valve module and control valve board assembly；
The direct solenoid check valve component includes gear spool I 2, gear spool II 3, gear spool III 4 and gear
Spool IV 5 is respectively equipped with reset bullet in the gear spool I 2, gear spool II 3, gear spool III 4 and gear spool IV 5
Spring 6, gear spool I 2 are controlled by direct solenoid check valve M1 7, and gear spool II 3 is controlled by direct solenoid check valve M2 8, shelves
Position spool III 4 is controlled by direct solenoid check valve M3 9, and gear spool IV 5 is controlled by direct solenoid check valve M410；
It is equipped with A output oil duct 11, B output oil duct 12 and C in the gear spool I 2 and exports oil duct 13, the gear
It is equipped with D output oil duct 14, E output oil duct 15 and F in spool IV 5 and exports oil duct 16, the A output oil duct 11, B export oil duct
12 and C exports oil duct 13 and forms upper control unit, the D output oil duct 14, E output oil duct 15 and the F output formation of oil duct 16
Lower control unit, the upper control unit are controlled by gear spool I 2 and gear spool II 3, and the lower control unit is by shelves
Position spool III 4 and gear spool IV 5 control；
The control valve board assembly includes control valve plate 17, is equipped with oil inlet passage 18, institute in the control valve plate 17
The non-return valve 19 blocked with 18 phase activity of oil inlet passage is equipped in the control valve plate 17 stated, the non-return valve 19 passes through control
Valve plate reset spring 20 processed carries out elastic connection；
The accumulation of energy core assembly includes accumulation of energy spool 21, and energy-storaging spring 22, institute are equipped in the accumulation of energy spool 21
Energy-storage pressure chamber 23 is formed between the accumulation of energy spool 21 stated and control valve plate 17；
The combined pressure regulating valve component include system pressure control valve core 24 and delay pressure valve core 25, it is described
System pressure control valve core 24 and delay pressure valve core 25 between be equipped with pressure spring 26, the system pressure control valve core 24 with
Gap between valve body 1 forms system pressure chamber 27, and the gap between the delay pressure valve core 25 and valve body 1 forms delay pressure
Chamber 28；
The system pressure chamber 27, energy-storage pressure chamber 23 are respectively communicated with the oil back chamber of drainback passage in control valve plate 17,
Oil outlet chamber, delay pressure chamber 28, energy-storage pressure chamber 23 and oil back chamber in the control valve plate 17 form circulation loop；
The range pressure interlocking valve module includes interlocking spool I 29 and interlocking spool II 30, the interlocking spool I
29 entrance connects A output oil duct 11 and B exports oil duct 12, and the entrance of the interlocking spool II 30 connects C and exports oil duct 13
Oil inlet passage 18 is connected in outlet with the outlet of interlocking spool I 29, the interlocking spool II 30.
Gear spool I 2, gear spool II 3, gear spool III 4 and the gear spool IV 5 is in arranged side by side point from bottom to top
Cloth；The interlocking spool I 29 and interlocking spool II 30 are in distribution side by side up and down.
The operating method of automatic Regulation multipath hydraulic change-over valve is carried out by step:
(1), it assembles:
According to require in valve body install direct solenoid check valve component, accumulation of energy core assembly, combined pressure regulating valve group
Part, range pressure interlocking valve module and control valve board assembly, and test pressure regulation is carried out to oil duct each in valve body, it is ensured that normal fortune
Row；
(2), whole control analysis processing:
Direct solenoid check valve M1 controls gear spool I, and direct solenoid check valve M2 controls gear spool II, direct solenoid
Check valve M3 controls gear spool III, and direct solenoid check valve M4 controls gear spool IV；
Gear spool I and the combination control tri- output oil ducts of D, E, F of gear spool II I, gear spool III and gear spool
IV combination control tri- output oil ducts of A, B, C；
Each gear valve core inside is respectively equipped with reset spring, when direct solenoid check valve M1, M2, M3 and M4 are powered off,
Gear spool I, II, III and IV is in home position under the elastic force effect of respective reset spring；
Pressure oil from oil pump acts on pressure-control valve core and pressure-control valve core is pushed to move to the right, opens oil return
Channel, the elastic force and system pressure of pressure spring keep balance, and collective effect is in pressure-control valve core, the position of pressure-control valve core
The size of control drainback passage is set, pressure spring realizes overflow by pressure-control valve core；
When the output of gear valve no pressure, accumulator valve is armed state；
Pressure oil from A output oil duct enters control valve plate oil input channel through interlocking spool I and interlocking spool II, comes from B
The pressure oil for exporting oil duct enters control valve plate oil input channel through interlocking spool I and interlocking spool II, the pressure from C output oil duct
Oil enters control valve plate oil input channel through interlocking spool II；Under the collective effect for interlocking spool I and interlocking spool II, in A, B, C tri-
In a output oil duct, there can only be a road binders therein to enter control valve plate oil input channel, and any road binders enters control valve plate oil inlet
When road, in addition two road binders connect drainback passage；
When the output of gear valve no pressure, the oil inlet passage for controlling valve plate connects drainback passage, and non-return valve is in spring
It is in close state under elastic force effect；
(3), each direct solenoid check valve Operations Analyst:
When direct solenoid check valve M1 is powered: system pressure oil enters gear spool I after direct solenoid check valve M1
Left side oil pocket pushes gear spool I that the elastic force of reset spring is overcome to move to the right, and system pressure oil enters A output oil duct, and
Enter control valve plate oil input channel by interlocking spool I and interlocking spool II, the oil into control valve plate enters by damping oil duct
Be delayed pressure chamber and energy-storage pressure chamber, and the oil for the pressure chamber that is delayed pushes delay pressure valve core to move to the left, energy-storage pressure chamber
Oil pushes accumulation of energy spool to move to the left, and system pressure enters boost phase, A export oil duct pressure it is synchronous with system pressure on
It rises；
Direct solenoid check valve M4 is powered, and it is left that system pressure oil enters gear spool III after direct solenoid check valve M4
Side oil pocket pushes gear spool III that the elastic force of reset spring is overcome to move to the right, and system pressure oil enters D output oil duct, and D is defeated
The pressure of oil road is synchronous with system pressure to be risen；
When direct solenoid check valve M2 is powered: system pressure oil enters gear spool II after direct solenoid check valve M2
Left side oil pocket pushes gear spool II that the elastic force of reset spring is overcome to move to the right, and system pressure oil enters C output oil duct,
And by interlocking spool I and interlocking spool II enter control valve plate oil input channel, into control valve plate oil by damping oil duct into
Enter to be delayed pressure chamber and energy-storage pressure chamber, and the oil for the pressure chamber that is delayed pushes delay pressure valve core to move to the left, energy-storage pressure chamber
Oil push accumulation of energy spool to move to the left, system pressure enters boost phase, and the pressure that C exports oil duct is synchronous with system pressure
Rise；
When direct solenoid check valve M3 is powered: system pressure oil enters gear spool III after direct solenoid check valve M3
Left side oil pocket pushes gear spool III that the elastic force of reset spring is overcome to move to the right, and system pressure oil enters F output oil duct, F
Export the pressure rising synchronous with system pressure of oil duct；
Direct solenoid check valve M1 and M2 are powered: system pressure oil enters gear after direct solenoid check valve M1 and M2
II left side oil pocket of spool I and gear spool pushes gear spool I and gear spool II to overcome the elastic force of reset spring sidesway to the right
Dynamic, system pressure oil enters B output oil duct, and enters control valve plate oil input channel by interlocking spool I and interlocking spool II, enters
The oil of control valve plate enters delay pressure chamber and energy-storage pressure chamber by damping oil duct, and the oil for the pressure chamber that is delayed pushes delay pressure
Spool moves to the left, and the oil of energy-storage pressure chamber pushes accumulation of energy spool to move to the left, and system pressure enters boost phase, and B is defeated
The pressure of oil road is synchronous with system pressure to be risen；
Direct solenoid check valve M3 and M4 are powered, and system pressure oil enters gear after direct solenoid check valve M3 and M4
IV left side oil pocket of spool III and gear spool pushes gear spool III and gear spool IV to overcome the elastic force of reset spring to the right
Mobile, system pressure oil enters E output oil duct, and E exports the pressure rising synchronous with system pressure of oil duct.
When A exports oil duct and D output oil duct pressure plateau, direct solenoid check valve M1 and direct solenoid check valve
M4 is powered, and gear spool I and gear spool IV are moved to right side operating position, and delay pressure valve core and accumulation of energy spool are moved to a left side
Side operating position, system pressure are constant；
(4), when working:
Pressure oil from oil pump acts on pressure-control valve core and pressure-control valve core is pushed to move to the right, opens oil return
Channel, the elastic force and system pressure of pressure spring keep balance, and collective effect is in pressure-control valve core, the position of pressure-control valve core
The size of control drainback passage is set, pressure spring realizes overflow by pressure-control valve core, realizes original oil pressure；
Pressure oil from gear valve acts on delay pressure valve core and delay pressure valve core is pushed to move to the left, delay pressure
The movement speed of power spool is passed through pressure spring by the elastic effect of system pressure and pressure spring, the movement for the pressure valve core that is delayed
11 promotion control valve cores move to the left, turn down drainback passage, change spillway discharge, regulating system pressure value, the variation of spillway discharge
The speed controlled movement speed in pressure-control valve core, the movement speed of pressure-control valve core be controlled by pressure spring elastic force and
The movement speed of delay pressure valve core, the liquid that the movement speed for the pressure valve core that is delayed is controlled by delay pressure chamber are increased speed,
The liquid of delay pressure chamber, which is increased speed, is controlled by the speed of rising progressively of system pressure；Pressure oil from gear valve acts on simultaneously
Accumulation of energy spool pushes accumulation of energy spool to move to the left, and energy-storaging spring constantly compresses, and the movement speed of accumulation of energy spool is controlled by accumulation of energy
The liquid of pressure chamber is increased speed, and the liquid of energy-storage pressure chamber, which is increased speed, is controlled by the speed of rising progressively of system pressure, accumulator valve
The movement speed of core and the movement speed of delay pressure valve core influence each other, and are changed back by pressure spring and pressure-control valve core
Oily channel sized realizes dynamic overflow variation, reaches automatic Regulation effect；
(5), when boosting work:
The interlocking spool I belonging to the range pressure interlock valve and the pressure oil for interlocking spool II enter the oil of control valve plate
Enter delay pressure chamber and energy-storage pressure chamber by damping oil duct, the oil for the pressure chamber that is delayed pushes delay pressure valve core sidesway to the left
Dynamic, the oil of energy-storage pressure chamber pushes accumulation of energy spool to move to the left, and system pressure enters boost phase；Pressure release phase, control
The oil inlet passage of valve plate processed connects drainback passage, is delayed pressure chamber and the intracavitary pressure oil of energy-storage pressure opens non-return valve, pressure
Power oil quick release, delay pressure valve core and accumulation of energy spool move on to the rightmost side, and non-return valve is closed under the elastic force effect of spring
Drain path, system pressure return to initial pressure state.
Claims (2)
1. a kind of automatic Regulation multipath hydraulic change-over valve, it is characterised in that: including valve body (1), be equipped in the valve body (1) straight
Galvanic electricity magnetic check valve assembly, accumulation of energy core assembly, combined pressure regulating valve component, range pressure interlocking valve module and control valve plate
Component；
The direct solenoid check valve component includes gear spool I (2), gear spool II (3), gear spool III (4) and shelves
Position spool IV (5) divides in the gear spool I (2), gear spool II (3), gear spool III (4) and gear spool IV (5)
Not She You reset spring (6), gear spool I (2) by direct solenoid check valve M1 (7) control, gear spool II (3) is by direct current
Magnetic check valve M2 (8) control, gear spool III (4) are controlled by direct solenoid check valve M3 (9), and gear spool IV (5) is by direct current
Electromagnetism check valve M4 (10) control；
A output oil duct (11), B output oil duct (12) and C output oil duct (13) are equipped in the gear spool I (2), it is described
D output oil duct (14), E output oil duct (15) and F output oil duct (16) are equipped in gear spool IV (5), the A exports oil duct
(11), B exports control unit in oil duct (12) and C output oil duct (13) formation, and D output oil duct (14), E export oil duct
(15) and F output oil duct (16) forms lower control unit, and the upper control unit is by gear spool I (2) and gear spool II
(3) it controls, the lower control unit is controlled by gear spool III (4) and gear spool IV (5)；
The control valve board assembly includes control valve plate (17), is equipped with oil inlet passage (18) in the control valve plate (17),
It is equipped in the control valve plate (17) and oil inlet passage (18) non-return valve (19) that mutually activity blocks, the non-return valve
(19) elastic connection is carried out by control valve sheet reset spring (20)；
The accumulation of energy core assembly includes accumulation of energy spool (21), is equipped with energy-storaging spring (22) in the accumulation of energy spool (21),
Energy-storage pressure chamber (23) are formed between the accumulation of energy spool (21) and control valve plate (17)；
The combined pressure regulating valve component includes system pressure control valve core (24) and is delayed pressure valve core (25), described
Pressure spring (26) are equipped between system pressure control valve core (24) and delay pressure valve core (25), the system pressure control valve
Gap between core (24) and valve body (1) forms system pressure chamber (27), between the delay pressure valve core (25) and valve body (1)
Gap forms delay pressure chamber (28)；
The system pressure chamber (27), energy-storage pressure chamber (23) are respectively communicated with the oil return of drainback passage in control valve plate (17)
Chamber, oil outlet chamber, delay pressure chamber (28), energy-storage pressure chamber (23) and oil back chamber in the control valve plate (17) are formed and are recycled
Circuit；
The range pressure interlocking valve module includes interlocking spool I (29) and interlocking spool II (30), the interlocking spool I
(29) entrance connects A output oil duct (11) and B output oil duct (12), and it is defeated that the entrance of the interlocking spool II (30) connects C
Oil inlet passage (18) are connected in the outlet of oil road (13) and the outlet for interlocking spool I (29), the interlocking spool II (30).
2. a kind of automatic Regulation multipath hydraulic change-over valve according to claim 1, it is characterised in that: the gear spool
I (2), gear spool II (3), gear spool III (4) and gear spool IV (5) are in from bottom to top and column distribution；The interlock valve
Core I (29) and interlocking spool II (30) are in distribution side by side up and down.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610545228.8A CN106015655B (en) | 2016-07-12 | 2016-07-12 | A kind of automatic Regulation multipath hydraulic change-over valve and its operating method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610545228.8A CN106015655B (en) | 2016-07-12 | 2016-07-12 | A kind of automatic Regulation multipath hydraulic change-over valve and its operating method |
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| Publication Number | Publication Date |
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| CN106015655A CN106015655A (en) | 2016-10-12 |
| CN106015655B true CN106015655B (en) | 2019-03-05 |
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|---|---|---|---|---|
| US5481872A (en) * | 1991-11-25 | 1996-01-09 | Kabushiki Kaisha Komatsu Seisakusho | Hydraulic circuit for operating plural actuators and its pressure compensating valve and maximum load pressure detector |
| CN202510442U (en) * | 2012-03-27 | 2012-10-31 | 杭州萧山叉车配件有限公司 | Novel engineering machinery electrohydraulic control variable speed control valve |
| CN103075509A (en) * | 2013-01-30 | 2013-05-01 | 江苏柳工机械有限公司 | Power gear shift speed change operating valve with independent buffer for gears |
| CN105134677A (en) * | 2015-01-27 | 2015-12-09 | 四川大学 | Fast hydraulic gear shifting system |
| CN205841870U (en) * | 2016-07-12 | 2016-12-28 | 杭州普微液压技术有限公司 | A kind of automatic Regulation multipath hydraulic change-over valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5389461B2 (en) * | 2008-03-05 | 2014-01-15 | ナブテスコ株式会社 | Hydraulic motor |
-
2016
- 2016-07-12 CN CN201610545228.8A patent/CN106015655B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5481872A (en) * | 1991-11-25 | 1996-01-09 | Kabushiki Kaisha Komatsu Seisakusho | Hydraulic circuit for operating plural actuators and its pressure compensating valve and maximum load pressure detector |
| CN202510442U (en) * | 2012-03-27 | 2012-10-31 | 杭州萧山叉车配件有限公司 | Novel engineering machinery electrohydraulic control variable speed control valve |
| CN103075509A (en) * | 2013-01-30 | 2013-05-01 | 江苏柳工机械有限公司 | Power gear shift speed change operating valve with independent buffer for gears |
| CN105134677A (en) * | 2015-01-27 | 2015-12-09 | 四川大学 | Fast hydraulic gear shifting system |
| CN205841870U (en) * | 2016-07-12 | 2016-12-28 | 杭州普微液压技术有限公司 | A kind of automatic Regulation multipath hydraulic change-over valve |
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|---|---|
| CN106015655A (en) | 2016-10-12 |
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Effective date of registration: 20190115 Address after: 311251 Xinhe Village, Linpu Town, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant after: Hangzhou Fada Gearbox Co., Ltd. Address before: 311200 Jinshan Village, Suoqian Town, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant before: Hangzhou Universal Hydraulic Technology Co., Ltd. |
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