CN205841870U - A kind of automatic Regulation multipath hydraulic change-over valve - Google Patents
A kind of automatic Regulation multipath hydraulic change-over valve Download PDFInfo
- Publication number
- CN205841870U CN205841870U CN201620728675.2U CN201620728675U CN205841870U CN 205841870 U CN205841870 U CN 205841870U CN 201620728675 U CN201620728675 U CN 201620728675U CN 205841870 U CN205841870 U CN 205841870U
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- spool
- valve
- gear
- oil duct
- pressure
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Abstract
This utility model is a kind of hydraulicdirectional control valve, particularly to a kind of automatic Regulation multipath hydraulic change-over valve.Including valve body, described valve body is provided with direct solenoid check valve assembly, accumulator valve core assembly, combined pressure regulating valve assembly, range pressure interlock valve assembly and control valve board component.A kind of automatic Regulation multipath hydraulic change-over valve compact conformation, functional diversities, improves reliability, promotes overall serviceability.
Description
Technical field
This utility model is a kind of hydraulicdirectional control valve, particularly to a kind of automatic Regulation multipath hydraulic change-over valve.
Background technology
Existing field of road engineering machinery vehicle, when starting, gear shift and commutation, for reaching vehicle stability, is all to use
The all-hydraulic transmission of fluid motor-driven or the mechanical gear kind of drive of band fluid torque-converter.The machinery of the above-mentioned kind of drive
System of vehicle transmission efficiency is low, and the considerable part energy of electromotor is converted to heat energy volatilization, and needs big cooling system to dispel the heat.
Use the vehicle of full mechanical driving speed changing box, improve transmission efficiency.For realizing transmission stability, need starting
Arranging manually-operated clutch between machine and change speed gear box, the stationarity of vehicle depends on the proficiency level operating clutch, people
Work operation clutch adds the labor intensity of operator, and vehicle stability there are differences, and is easily caused drive system impact, impact
Construction quality and vehicle service life.
Utility model content
This utility model mainly solves the deficiencies in the prior art, compact conformation, makes full mechanical driving speed changing box
Internal wet clutch possesses buffering combined function, and according to the change of wet clutch transmission moment of torsion, reversal valve can be automatic
Mate corresponding system pressure, reflect that along with the change of vehicular load, reversal valve adjusts the pressure of hydraulic system automatically on vehicle
Power, a kind of automatic Regulation multipath hydraulic change-over valve of power drive system held stationary transmission.
Above-mentioned technical problem of the present utility model is mainly addressed by following technical proposals:
A kind of automatic Regulation multipath hydraulic change-over valve, including valve body, is provided with direct solenoid check valve group in described valve body
Part, accumulator valve core assembly, combined pressure regulating valve assembly, range pressure interlock valve assembly and control valve board component；
Described direct solenoid check valve assembly includes gear spool I, gear spool II, gear spool III and gear spool
IV, described gear spool I, gear spool II, gear spool III and gear spool IV is respectively equipped with back-moving spring, gear valve
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 unidirectional current
Magnetic check valve M3 controls, and gear spool IV is controlled by direct solenoid check valve M4；
Described gear spool I is provided with A output oil duct, B output oil duct and C and exports oil duct, described gear spool IV
In be provided with D output oil duct, E output oil duct and F and export oil duct, described A output oil duct, B output oil duct and C output oil duct are formed
Upper control unit, described D output oil duct, E output oil duct and F output oil duct forms lower control unit, described upper control list
Unit is controlled by gear spool I and gear spool II, and described lower control unit is controlled by gear spool III and gear spool IV；
Described control valve board component includes controlling valve plate, is provided with oil inlet passage, described control in described control valve plate
Being provided with in valve plate processed and the non-return valve of oil inlet passage movable blocking mutually, described non-return valve passes through control valve sheet reset spring
Carry out elastic connection；
Described accumulator valve core assembly includes accumulation of energy spool, is provided with energy-storaging spring, described storage in described accumulation of energy spool
Energy-storage pressure chamber can be formed between spool and control valve plate；
Described combined pressure regulating valve assembly includes that system pressure controls spool and time delay pressure valve core, described system
Being provided with pressure spring between Stress control spool and time delay pressure valve core, described system pressure controls the space between spool and valve body
Forming system pressure chamber, the space between described time delay pressure valve core and valve body forms time delay pressure chamber；
Described system pressure chamber, energy-storage pressure chamber are respectively communicated with and control the oil back chamber of drainback passage in valve plate, described
Go out oil pocket, time delay pressure chamber, energy-storage pressure chamber and the oil back chamber that control in valve plate form closed circuit；
Described range pressure interlock valve assembly includes interlocking spool I and interlocking spool II, entering of described interlocking spool I
Mouth connects A output oil duct and B exports oil duct, the entrance connection C output oil duct of described interlocking spool II and going out of interlocking spool I
Mouthful, oil inlet passage is connected in the outlet of described interlocking spool II.
As preferably, described gear spool I, gear spool II, gear spool III and gear spool IV are in from bottom to top
And column distribution；Described interlocking spool I and interlocking spool II are in being distributed the most side by side.
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；Often group gear spool side is provided with electric magnet, guides during electric magnet energising
Pilot pressure oil promotes gear spool to move, and during electric magnet power-off, gear spool resets under back-moving spring elastic force effect.
There are armed state, delay working state and three kinds of states of constant pressure duty in system pressure chamber.Await orders shape
During state, system pressure chamber is fully connected with oil back chamber, and time delay pressure chamber constant volume, system pressure cavity volume is with fluid flow
Change produces corresponding trace and changes to maintain system pressure steady statue；In delay working state, time delay pressure chamber volume line
Property increase, pressure spring elastic force and dynamic system pressure interact, system pressure cavity volume generation nonlinear change, system
There is corresponding change to the passage of oil back chamber in pressure chamber, causes overfall size to change, and system pressure produces dynamically change；?
Constant pressure duty, time delay pressure chamber constant volume, system pressure cavity volume produces corresponding with the change of fluid flow
Trace changes, and system pressure maintains steady state.
There are blank state, time delay energy accumulating state and three kinds of states of energy storage state in energy-storage pressure chamber.During blank state, accumulation of energy
Pressure chamber is fully connected with oil back chamber, and accumulation of energy spool is placed in initial position under energy-storaging spring resilient force；In time delay accumulation of energy
State, energy-storage pressure cavity volume is linearly increasing, and energy-storaging spring elastic force increases continuously, the liquid volume of energy-storage pressure intracavity and pressure
Gradually increase, form energy storage；At 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 depends on volume and the pressure of energy-storage pressure intracavity liquid.
Valve body is provided with control valve board component, and control valve board component and valve body are bolted connection.Control valve board component
Oil inlet passage connect multipath hydraulic change-over valve work shelves oil duct, control valve board component drainback passage connection oil back chamber, control
The oil pocket that goes out of valve board assembly processed forms closed circuit with time delay pressure chamber, energy-storage pressure chamber and oil back chamber.
Valve body is provided with range pressure interlock valve, range pressure interlock valve UNICOM each range pressure chamber, the pressure of work shelves
Chamber is connected with the oil inlet passage within control valve board component through range pressure interlock valve, and range pressure interlock valve cuts off control valve plate
The pressure chamber of the oil inlet passage of assembly and inoperative shelves and oil back chamber.
Described multipath hydraulic change-over valve possesses automatic Regulation function, it is achieved freely changing between nine gears.
Described multipath hydraulic change-over valve is arranged in juxtaposition four spools, is set to two control units, two control units
Controlling different combination oil circuits respectively, each combination oil circuit comprises three output oil ducts with interlocked relationship.
Described multipath hydraulic change-over valve is provided with system pressure and controls spool and time delay pressure valve core, and system pressure controls
Spool correspondence system pressure chamber, time delay pressure valve core correspondence time delay pressure chamber, the master of system pressure chamber connection hydraulicdirectional control valve enters
Oil circuit, time delay pressure chamber selectivity connection output oil duct, system pressure controls spool and time delay pressure valve core realizes system pressure
Auto-changing.
Described multipath hydraulic change-over valve is provided with accumulation of energy spool, accumulation of energy spool correspondence energy-storage pressure chamber, energy-storage pressure chamber
Connection time delay pressure chamber, energy-storage pressure intracavity liquid pressure realizes at the uniform velocity promoting by energy-storaging spring and quickly discharges.
Described multipath hydraulic change-over valve is provided with Multi-oil circuit interlocking spool, and Multi-oil circuit interlocking spool freely moves in valve opening
Dynamic, it is arranged in parallel on the right side of valve body with time delay pressure valve core and accumulation of energy spool.
Described multipath hydraulic change-over valve is provided with control valve board component, and control valve board component and valve body are bolted connection
Connecing, control valve board component is internally provided with connection time delay pressure chamber and the oil duct in energy-storage pressure chamber, damping oil inlet passage and unidirectional
Ball valve, non-return valve is provided with compression spring, and non-return valve controls time delay pressure chamber and the release of energy-storage pressure cavity pressure liquid
Speed.
Described multipath hydraulic change-over valve is provided with four groups of DC electromagnetic valves, often group DC electromagnetic valve and the gear controlled
Valve dislocation is arranged, often group 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 that this utility model provides, compact conformation, functional diversities,
Improve reliability, promote overall serviceability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is this utility model A output oil duct and D output oil duct pressure uphill process spool position schematic diagram；
Fig. 3 is this utility model C output oil duct and F output oil duct pressure uphill process spool position schematic diagram；
Fig. 4 is this utility model B output oil duct and E output oil duct pressure uphill process spool position schematic diagram；
Fig. 5 is spool position schematic diagram when this utility model A output oil duct and D output oil duct pressure plateau；
Fig. 6 is hydraulic principle figure of the present utility model.
Detailed description of the invention
Below by embodiment, and combine accompanying drawing, the technical solution of the utility model is described in further detail.
Embodiment: as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, a kind of automatic Regulation multipath hydraulic change-over valve, including
Valve body 1, is provided with direct solenoid check valve assembly, accumulator valve core assembly, combined pressure regulating valve assembly, shelves in described valve body 1
Position pressure interlock valve assembly and control valve board component；
Described direct solenoid check valve assembly 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 described gear spool I 2, gear spool II 3, gear spool III 4 and gear spool IV 5
Spring 6, gear spool I 2 is 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；
Be provided with A output oil duct 11 in described gear spool I 2, B output oil duct 12 and C exports oil duct 13, described gear
Be provided with D output oil duct 14 in spool IV 5, E output oil duct 15 and F exports oil duct 16, and described A output oil duct 11, B export oil duct
12 and C output oil ducts 13 form upper control unit, and described D output oil duct 14, E output oil duct 15 and F output oil duct 16 are formed
Lower control unit, described upper control unit is controlled by gear spool I 2 and gear spool II 3, and described lower control unit is by shelves
Position spool III 4 and gear spool IV 5 control；
Described control valve board component includes controlling valve plate 17, is provided with oil inlet passage 18, institute in described control valve plate 17
The non-return valve 19 controlling to be provided with in valve plate 17 and oil inlet passage 18 phase activity blocks stated, described non-return valve 19 is by control
Valve plate back-moving spring 20 processed carries out elastic connection；
Described accumulator valve core assembly includes accumulation of energy spool 21, is provided with energy-storaging spring 22, institute in described 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；
Described combined pressure regulating valve assembly includes that system pressure controls spool 24 and time delay pressure valve core 25, described
System pressure controls to be provided with between spool 24 and time delay pressure valve core 25 pressure spring 26, described system pressure control spool 24 with
Space between valve body 1 forms system pressure chamber 27, and the space between described time delay pressure valve core 25 and valve body 1 forms time delay pressure
Chamber 28；
Described system pressure chamber 27, energy-storage pressure chamber 23 are respectively communicated with and control the oil back chamber of drainback passage in valve plate 17,
Described go out oil pocket, time delay pressure chamber 28, energy-storage pressure chamber 23 and the oil back chamber that control in valve plate 17 form closed circuit；
Described range pressure interlock valve assembly includes interlocking spool I 29 and interlocking spool II 30, described interlocking spool I
The entrance of 29 is connected A output oil duct 11 and B and is exported oil duct 12, and the entrance of described interlocking spool II 30 is connected C and exported oil duct 13
With the outlet of interlocking spool I 29, oil inlet passage 18 is connected in the outlet of described interlocking spool II 30.
Described gear spool I 2, gear spool II 3, gear spool III 4 and gear spool IV 5 are in dividing the most side by side
Cloth；Described interlocking spool I 29 and interlocking spool II 30 are in being distributed the most side by side.
Claims (2)
1. an automatic Regulation multipath hydraulic change-over valve, it is characterised in that: include valve body (1), described valve body (1) is provided with straight
Stream electromagnetism check valve assembly, accumulator valve core assembly, combined pressure regulating valve assembly, range pressure interlock valve assembly and control valve plate
Assembly；
Described direct solenoid check valve assembly includes gear spool I (2), gear spool II (3), gear spool III (4) and shelves
Position spool IV (5), divides in described gear spool I (2), gear spool II (3), gear spool III (4) and gear spool IV (5)
Not being provided with back-moving spring (6), gear spool I (2) is by direct solenoid check valve M1(7) control, gear spool II (3) is by unidirectional current
Magnetic check valve M2(8) control, gear spool III (4) is by direct solenoid check valve M3(9) control, gear spool IV (5) is by direct current
Electromagnetism check valve M4(10) control；
Described gear spool I (2) is provided with A output oil duct (11), B output oil duct (12) and C output oil duct (13), described
Being provided with D output oil duct (14), E output oil duct (15) and F output oil duct (16) in gear spool IV (5), described A exports oil duct
(11), B exports oil duct (12) and C exports control unit in oil duct (13) formation, and described D output oil duct (14), E export oil duct
(15) exporting oil duct (16) form lower control unit with F, described upper control unit is by gear spool I (2) and gear spool II
(3) controlling, described lower control unit is controlled by gear spool III (4) and gear spool IV (5)；
Described control valve board component includes controlling valve plate (17), is provided with oil inlet passage (18) in described control valve plate (17),
Described control valve plate (17) is provided with and the non-return valve (19) of oil inlet passage (18) movable blocking mutually, described non-return valve
(19) elastic connection is carried out by control valve sheet reset spring (20)；
Described accumulator valve core assembly includes accumulation of energy spool (21), is provided with energy-storaging spring (22) in described accumulation of energy spool (21),
Energy-storage pressure chamber (23) is formed between described accumulation of energy spool (21) and control valve plate (17)；
Described combined pressure regulating valve assembly includes that system pressure controls spool (24) and time delay pressure valve core (25), described
System pressure controls to be provided with pressure spring (26), described system pressure control valve between spool (24) and time delay pressure valve core (25)
Space between core (24) and valve body (1) forms system pressure chamber (27), between described time delay pressure valve core (25) and valve body (1)
Space forms time delay pressure chamber (28)；
Described system pressure chamber (27), energy-storage pressure chamber (23) are respectively communicated with and control the oil return of drainback passage in valve plate (17)
Chamber, go out oil pocket, time delay pressure chamber (28), energy-storage pressure chamber (23) and oil back chamber in described control valve plate (17) form circulation
Loop；
Described range pressure interlock valve assembly includes interlocking spool I (29) and interlocking spool II (30), described 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 described interlocking spool II (30) connects C
Oil road (13) and the outlet of interlocking spool I (29), oil inlet passage (18) is connected in the outlet of described interlocking spool II (30).
A kind of automatic Regulation multipath hydraulic change-over valve the most according to claim 1, it is characterised in that: described 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；Described interlock valve
Core I (29) and interlocking spool II (30) are in being distributed the most side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620728675.2U CN205841870U (en) | 2016-07-12 | 2016-07-12 | A kind of automatic Regulation multipath hydraulic change-over valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620728675.2U CN205841870U (en) | 2016-07-12 | 2016-07-12 | A kind of automatic Regulation multipath hydraulic change-over valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205841870U true CN205841870U (en) | 2016-12-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620728675.2U Withdrawn - After Issue CN205841870U (en) | 2016-07-12 | 2016-07-12 | A kind of automatic Regulation multipath hydraulic change-over valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN205841870U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015655A (en) * | 2016-07-12 | 2016-10-12 | 杭州普微液压技术有限公司 | Automatic voltage adjustment multi-way hydraulic reverse valve and operation method thereof |
-
2016
- 2016-07-12 CN CN201620728675.2U patent/CN205841870U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015655A (en) * | 2016-07-12 | 2016-10-12 | 杭州普微液压技术有限公司 | Automatic voltage adjustment multi-way hydraulic reverse valve and operation method thereof |
| CN106015655B (en) * | 2016-07-12 | 2019-03-05 | 杭州发达齿轮箱集团有限公司 | A kind of automatic Regulation multipath hydraulic change-over valve and its operating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161228 Effective date of abandoning: 20190305 |
|
| AV01 | Patent right actively abandoned |