CN204553818U - Pressure-adjustable solenoid electric valve and adopt its speed governing bending moment transmission device hydraulic system - Google Patents
Pressure-adjustable solenoid electric valve and adopt its speed governing bending moment transmission device hydraulic system Download PDFInfo
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- CN204553818U CN204553818U CN201520187957.1U CN201520187957U CN204553818U CN 204553818 U CN204553818 U CN 204553818U CN 201520187957 U CN201520187957 U CN 201520187957U CN 204553818 U CN204553818 U CN 204553818U
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Abstract
The utility model discloses a kind of pressure-adjustable solenoid electric valve, comprise electromagnet, guide valve blocks, pilot valve, pilot valve spring, connect valve body, connect spool, main valve body, main valve plug and main spring.Adopt pressure-adjustable solenoid electric valve can realize engineering ship light-load mode or heavily loaded pattern, engineering ship hoisting operation control accuracy and handling can be improved.The invention also discloses the speed governing bending moment transmission device hydraulic system adopting above-mentioned pressure-adjustable solenoid electric valve, comprise control oil pump, multi-way valve, control valve, emergency valve, pressure-adjustable solenoid electric valve, delivery valve, centrifugal valve, the first pressure regulator valve, the second pressure regulator valve, the 3rd pressure regulator valve, feedback oil pipe, first than pressure valve, second than pressure valve and pressure controlled valve.Adopt speed governing bending moment transmission device hydraulic system of the present utility model, hydro-viscous speed governing clutch and the fluid torque converter characteristics match of speed governing bending moment transmission device can be made, high efficiency running under different operating mode.
Description
Technical field
The utility model relates to hydraulic system, particularly relates to the speed governing bending moment transmission device hydraulic system of a kind of pressure-adjustable solenoid electric valve and this solenoid valve of employing.
Background technique
What speed governing bending moment transmission device can make fluid torque converter can hold (i.e. the ability of absorbed power) stepless change, and this change is controlled.So it can ensure the perfect match of prime mover and fluid torque converter under any operating mode, namely go power and the moment of the prime mover desired by transmission with the operating mode of the fluid torque converter of specifying (i.e. rotating ratio).
Speed governing bending moment transmission device is mainly used on engineering ship, is that engineering ship master hoists one of the nucleus equipment of driving mechanism.The main hoisting mechanism of engineering ship has two kinds of mode of operations: light-load mode and heavily loaded pattern.Heavy duty pattern provides higher Driving Torque, for the usual operation of sling load lower than maximum load rating; Light-load mode provides lower Driving Torque, uses time quite light for sling load; The differentiation of two kinds of patterns improves control accuracy and the operating characteristics of engineering ship hoisting operation.Two kinds of patterns are realized by speed governing bending moment transmission device, and the control system of speed governing bending moment transmission device domestic is at present fairly simple, and without hydraulic pressure feedback function, handling is poor; Hydraulic valve piece without adjustable high-low pressure Electromagnetic Control realizes speed governing bending moment transmission device underloading, heavy duty work pattern; There are no the report of pressure-adjustable solenoid electric valve being applied to speed governing bending moment transmission device hydraulic system.
Summary of the invention
The purpose of this utility model is to provide a kind of hydro-viscous speed governing clutch and the fluid torque converter characteristics match that realize speed governing bending moment transmission device, the pressure-adjustable solenoid electric valve of high efficiency running under different operating mode and the speed governing bending moment transmission device hydraulic system of this pressure-adjustable solenoid electric valve of employing.
In order to achieve the above object, the utility model have employed following technological scheme: a kind of pressure-adjustable solenoid electric valve, comprises pilot valve, connection valve and main valve that order is connected;
Described pilot valve comprises electromagnet, guide valve blocks, pilot valve and pilot valve spring, the the first oil transportation duct A1 being provided with die cavity and being communicated with die cavity in guide valve blocks, second oil transportation duct P1 and the 3rd oil transportation duct A0, pilot valve spring is arranged on the cavity bottom of guide valve blocks, can move up and down under the effect of electromagnet in the die cavity that pilot valve is arranged on guide valve blocks, connect optionally to make the second oil transportation duct P1 and the 3rd oil transportation duct A0 or the first oil transportation duct A1, upper end and the electromagnet of pilot valve are fixedly linked, conflict with pilot valve spring and be connected in lower end,
Described connection valve comprises and connects valve body and be connected spool, the left end and the guide valve blocks that connect valve body are fixedly linked, the duct being provided with die cavity A2 and being communicated with the second oil transportation duct P1 of guide valve blocks in connection valve body, die cavity A2 is communicated with the 3rd oil transportation duct A0 of guide valve blocks, connect spool be arranged on connect valve body die cavity A2 in and can move left and right, be provided with endoporus A3 at the left end connecting spool, this endoporus A3 is communicated with the first oil transportation duct A1 of guide valve blocks;
Described main valve comprises main valve body, main valve plug and main spring, the left end of main valve body be connected valve body and be fixedly linked, the working oil being provided with die cavity and be communicated with the die cavity of main valve body in main valve body exports A, working oil entrance P and controls oil-in X1, working oil outlet A is by the die cavity of this main valve body and connect valve body and is communicated with the second oil transportation duct P1 of guide valve blocks, and main valve plug is arranged on that the die cavity of main valve body is interior also can be moved left and right; The die cavity of this main valve body comprises the main spring chamber Y1 and control chamber Y2 that lay respectively at the main valve plug left and right sides, and main spring is arranged in the Y1 of main spring chamber, and the right-hand member of main spring is pressed on the left end of main valve plug; Control oil-in X1 to be communicated with control chamber Y2, when controlling input control oil in the X1 of oil-in, main valve plug is moved to the left, and working oil outlet A is communicated with working oil entrance P; Spring positioning block is provided with being connected between valve body at main valve body, the right-hand member of described connection spool passes central through bore and the main spring of this spring positioning block, and can conflict with main valve plug when moving right and be connected, between this connection spool and central through bore of spring positioning block, there is gap; The left end of described main spring is pressed on spring positioning block.
Preferably, this pressure-adjustable solenoid electric valve also comprises manual tune assembly, this manual tune assembly comprises Regulation spring seat, Regulation spring and adjusting screw, the left end of Regulation spring is connected to the right-hand member of main valve plug, the right-hand member of Regulation spring is connected on Regulation spring seat, and adjusting screw is arranged on the right-hand member of main valve body and is pressed on Regulation spring seat.
Preferably, described pilot valve is provided with two slide blocks up and down mated with the die cavity of guide valve blocks, be provided with annular groove between two slide blocks, move up and down pilot valve and realize the second oil transportation duct P1, the 3rd oil transportation duct A0 connect or the first oil transportation duct A1, the second oil transportation duct P1 are connected by annular groove.
Adopt the speed governing bending moment transmission device hydraulic system of above-mentioned pressure-adjustable solenoid electric valve, described speed governing bending moment transmission device comprises hydro-viscous speed governing clutch, drives the driving oil cylinder of this hydro-viscous speed governing clutch action and fluid torque converter, and its feature is: described speed governing bending moment transmission device hydraulic system comprises control oil pump, multi-way valve, control valve, emergency valve, pressure-adjustable solenoid electric valve, delivery valve, centrifugal valve, the first pressure regulator valve, the second pressure regulator valve, the 3rd pressure regulator valve, feedback oil pipe, first than pressure valve, second than pressure valve and pressure controlled valve; Multiplex operation oil is become after the output oil of control oil pump outputs to multi-way valve, wherein, first via working oil is transported to described control valve, emergency valve, pressure-adjustable solenoid electric valve and the 3rd pressure regulator valve respectively, second road working oil is transported to described delivery valve, 3rd road working oil is transported to described feedback oil pipe, and the 4th road working oil is transported to described second pressure regulator valve; The output oil of control valve exports to described first than pressure valve after emergency valve, and does not output to described delivery valve and pressure-adjustable solenoid electric valve as control oil content; The output oil of delivery valve enters described driving oil cylinder after described centrifugal valve becomes working oil, promote to drive the piston of oil cylinder to make to produce frictional force between the friction element of described hydro-viscous speed governing clutch, thus make the input shaft of described hydro-viscous speed governing clutch drive output shaft to rotate; The output oil of pressure-adjustable solenoid electric valve enters described centrifugal valve after the first pressure regulator valve becomes control oil, controls the in-oil cylinder oil pressure of described driving; Described feedback oil pipe is provided with two-way and exports oil, outputs to the first pressure regulator valve and the second pressure regulator valve control oil as the first pressure regulator valve and the second pressure regulator valve respectively; The output oil of the second pressure regulator valve outputs to first and compares pressure valve, also output to the 3rd pressure regulator valve as control oil simultaneously, first is used for comparing the output oil oil pressure of the second pressure regulator valve and emergency valve than pressure valve, and one larger for oil pressure in the two is outputted to described second and compare pressure valve; The output oil of the 3rd pressure regulator valve outputs to second and compares pressure valve, second is used for comparing than the output oil oil pressure of pressure valve and the 3rd pressure regulator valve first than pressure valve, and one larger for oil pressure in the two is exported to described pressure controlled valve, control the oil pressure in described fluid torque converter by this pressure controlled valve.
Preferably, described speed governing bending moment transmission device hydraulic system also comprises lubricating pump, duplex pump and relief valve, the output oil of lubricating pump exports through duplex pump, it is that fluid torque converter is oil-filled that a part outputs to described fluid torque converter, another part outputs to described hydro-viscous speed governing clutch after relief valve pressure regulating, lubricates and cools the friction element of this hydro-viscous speed governing clutch.
Adopt the technical solution of the utility model, hydro-viscous speed governing clutch and the fluid torque converter characteristics match of speed governing bending moment transmission device can be made, high efficiency running under different operating mode.Pressure-adjustable solenoid electric valve achieves engineering ship light-load mode or heavily loaded pattern, improves engineering ship hoisting operation control accuracy and handling.In addition, pressure-adjustable solenoid electric valve can need to carry out manual tune to operating oil pressure according to hydraulic work system, and between high-low pressure, conversion fluctuation is little, controls simple and reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pressure-adjustable solenoid electric valve according to the utility model one embodiment.
Fig. 2 is the schematic diagram of the speed governing bending moment transmission device hydraulic system according to the utility model one embodiment.
Embodiment
See Fig. 1, the pressure-adjustable solenoid electric valve in the utility model, comprises pilot valve, connection valve, main valve and manual tune assembly that order is connected.
Pilot valve wherein comprises electromagnet 26, guide valve blocks 28, pilot valve 27 and pilot valve spring 29, the the first oil transportation duct A1 being provided with die cavity and be communicated with die cavity in guide valve blocks, the second oil transportation duct P1, the 3rd oil transportation duct A0 and oil return duct T0, pilot valve spring 29 is arranged on the cavity bottom of guide valve blocks 28, can move up and down under the effect of electromagnet 26 in the die cavity that pilot valve 27 is arranged on guide valve blocks, upper end and the electromagnet 26 of pilot valve 27 are fixedly linked, and conflict with pilot valve spring 29 and be connected in lower end.Pilot valve 27 in the utility model is provided with two slide blocks up and down mated with the die cavity of guide valve blocks, is provided with annular groove between two slide blocks, and the diameter of annular groove is less than the internal diameter of guide valve blocks die cavity.Move up and down pilot valve to realize the second oil transportation duct P1, the 3rd oil transportation duct A0 connect or the first oil transportation duct A1, the second oil transportation duct P1 are connected by annular groove.Wherein, during electromagnet 26 no electric circuit, the second oil transportation duct P1 and the 3rd oil transportation duct A0 connects by described annular groove; When electromagnet 26 is energized, pilot valve 27 moves down, and now the second oil transportation duct P1 and the first oil transportation duct A1 connects by this annular groove.Preferably, pilot valve 27 is provided with the intercommunicating pore 271 spring chamber be positioned at below pilot valve and oil return duct T0 can connected.This intercommunicating pore 271 is T-shaped hole, the vertical core comprising a horizontal through hole and be connected with this horizontal through hole, and the upper end of this vertical core is communicated with horizontal through hole, and the lower end of vertical core is communicated with the spring chamber of pilot valve 27 lower end.During electromagnet 26 no electric circuit, horizontal through hole and oil return duct T0 connect, and when electromagnet 26 is energized, this horizontal through hole and the 3rd oil transportation duct A0 connect.
Connection valve comprises and connects valve body 31 and be connected spool 32, the left end and the guide valve blocks 28 that connect valve body 31 are fixedly linked, the duct being provided with die cavity A2 and being communicated with the second oil transportation duct P1 of guide valve blocks in connection valve body 31, die cavity A2 is communicated with the 3rd oil transportation duct A0 of guide valve blocks 28, connect spool 32 be arranged on connect valve body 31 die cavity A2 in and can move left and right, be provided with endoporus A3 at the left end connecting spool 32, this endoporus A3 is communicated with the first oil transportation duct A1 of guide valve blocks.This connection spool 32 comprises an enlarged head 321 and little head 322, endoporus A3 is arranged on enlarged head 321, the left end of little head 322 is connected with enlarged head 321, when connecting spool 32 and moving right, the right-hand member of little head 322 with can be against on main valve plug 36 and main valve plug slided.The duct that the endoporus A3 of the connection spool in the utility model is communicated with the first oil transportation duct A1 of guide valve blocks is provided with is with throttle orifice plug screw 30a, and the duct that the connection die cavity A2 of valve body is communicated with the 3rd oil transportation duct A0 of guide valve blocks is provided with is with throttle orifice plug screw 30b.
Main valve comprises main valve body 37, main valve plug 36 and main spring 35, the left end of main valve body 37 be connected valve body 31 and be fixedly linked, the working oil being provided with die cavity and be communicated with the die cavity of main valve body in main valve body 37 exports A, working oil entrance P, oil transportation duct T and controls oil-in X1, working oil outlet A is by the die cavity of main valve body and connect valve body 31 and is communicated with the second oil transportation duct P1 of guide valve blocks 28, and main valve plug 36 is arranged on that the die cavity of main valve body is interior also can be moved left and right; The die cavity of main valve body comprises the main spring chamber Y1 and control chamber Y2 that lay respectively at the main valve plug left and right sides, and main spring 35 is arranged in the Y1 of main spring chamber, and its right-hand member is pressed on the left end of main valve plug 36; Control oil-in X1 to be communicated with control chamber Y2, when controlling input control oil in the X1 of oil-in, main valve plug is moved to the left, and working oil outlet A is communicated with working oil entrance P.Be provided with spring positioning block 33 at main valve body with being connected between valve body, the right-hand member connecting spool 32 through the central through bore of this spring positioning block 33 and main spring 35, and can be conflicted with main valve plug 36 when moving right and is connected; The left end of main spring 35 is pressed on spring positioning block 33 by pad 34.Particularly, the little head 322 connecting spool 32 passes central through bore and the main spring 35 of spring positioning block 33, has gap between little head 322 and the central through bore of spring positioning block.When connecting spool 32 and moving right, the right-hand member of little head 322 with can be against on main valve plug 36 and main valve plug slided, preferably, between the right-hand member of little head 322 and the end face of main valve plug 36, form point cantact.The two ends, left and right of main valve plug 36 are provided with two slide blocks 361,362 mated with the die cavity of main valve body 37, and two slide blocks 361,362 relative end faces are provided with chamfering, and be provided with annular groove between two slide blocks, the diameter of annular groove is less than the internal diameter of main valve body die cavity.
Manual tune assembly comprises Regulation spring seat 39, Regulation spring 38 and adjusting screw 40, the left end of Regulation spring 38 is connected to the right-hand member of main valve plug 36, the right-hand member of Regulation spring 38 is connected on Regulation spring seat 39, adjusting screw 40 is arranged on the right-hand member of main valve body 37 and is pressed on Regulation spring seat 39, can regulate the position of main valve plug 36.
Oil return duct T0 on the die cavity of main valve body and guide valve blocks connects by the throttle orifice 51 that the main valve body in the utility model, connection valve body and guide valve blocks are provided with sequential communication.The oil circuit with the design of throttle orifice 51, throttle orifice plug screw 30a and throttle orifice plug screw 30b makes to change between high and low pressure more steady.
Pressure-adjustable solenoid electric valve major function composition graphs 1 is described as follows:
Shown in Fig. 1 is schematic diagram under this pressure-adjustable solenoid electric valve is in non-working state, namely controls not control oil in the X1 of oil-in and enters, and working oil outlet A is only communicated with oil transportation duct T, and be not communicated with working oil entrance P, electromagnet 26 is not energized yet.And when pressure-adjustable solenoid electric valve is in running order, controlling oil can enter in control oil-in X1, main valve plug 36 can be moved to the left, now working oil outlet A, working oil entrance P and oil transportation duct T-phase intercommunicated, the effect of oil transportation duct T is more steady, sensitive when oil pressure can be made to change.Pressure-adjustable solenoid electric valve controls the position of pilot valve 27 by electromagnet 26, one end of the input hydraulic pressure of pressure-adjustable solenoid electric valve oil introducing connection spool 32 or main valve plug 36 can be made to have one end of main spring 35, change the stressed size that main valve plug 36 is provided with main spring 35 side, thus the output oil pressure of conversion outlet.Known X1 is for controlling oil-in, and A is working oil outlet, and P is working oil entrance.Main valve plug 36 liang of end cross-sectional areas are S
0the sectional area of the enlarged head 321 of (i.e. the sectional area of main valve plug slide block 361,362), connection spool 32 is S
1, to control the control oil pressure of oil-in X1 be P
0, electromagnet 26 no electric circuit time working oil outlet A output oil pressure be P
1, electromagnet 26 working oil outlet A when being energized output oil pressure be P
2, main valve plug 36 two ends spring force
, due to very little, negligible on amount of spring compression impact before and after delivery pressure conversion.
During electromagnet 26 no electric circuit, the working oil flowed into by working oil entrance P can flow into working oil and export in A, then flow into the 3rd oil transportation duct A0 successively through the second oil transportation duct P1 of guide valve blocks, connect the die cavity A2 of valve body, then the central through bore through spring positioning block 33 flows in the main spring chamber Y1 of main valve body with the gap be connected between spool microcephaly portion 322, because the oil pressure of working oil outlet A is P
1, the working oil in the Y1 of main spring chamber is also P to the pressure of main valve plug slide block 361
1.
When electromagnet 26 is energized, pilot valve 27 moves down, second oil transportation duct P1 and the first oil transportation duct A1 connects, horizontal through hole and the 3rd oil transportation duct A0 of intercommunicating pore 271 connect, the working oil being exported A inflow by working oil flows into the first oil transportation duct A1 successively through the second oil transportation duct P1 of guide valve blocks, connect the endoporus A3 of the left end of spool 32, promote to connect spool 32 to move right, the little head 322 connecting spool 32 props up the left end of main valve plug and drives main valve plug to move right, working oil is made to export the outlet of A(and main valve body) reduce with the opening of working oil entrance P connectivity part, the output oil pressure at main valve body outlet A place is P
2, the oil pressure connecting the endoporus A3 of spool 32 is P
2.In the process that connection spool 32 moves right, the hydraulic oil in die cavity A2 enters the horizontal through hole of connecting through hole 271, the spring chamber of guide valve blocks and oil return duct T0 by the 3rd oil transportation duct A0.
Known by main valve plug two ends stress balance:
Can obtain:
That is: when when controlling oil pressure and being constant, electromagnet 26 is energized, the output oil pressure of pressure-adjustable solenoid electric valve equals main valve plug 36 slide block sectional area and the ratio being connected spool 32 slide block maximum secting area with the ratio of pressure-adjustable solenoid electric valve output oil pressure during electromagnet 26 no electric circuit.
In another embodiment, oil transportation duct T also can not be set.Now, when controlling do not have input control oil in the X1 of oil-in, working oil outlet A is not communicated with mutually with working oil entrance P; When controlling input control oil in the X1 of oil-in, main valve plug is moved to the left, and working oil outlet A is communicated with working oil entrance P.
See Fig. 2, according to the speed governing bending moment transmission device hydraulic system of the pressure-adjustable solenoid electric valve of the utility model one embodiment, comprise control oil pump 14, multi-way valve 11, control valve 1, emergency valve 2, pressure-adjustable solenoid electric valve 3, delivery valve 9, centrifugal valve 5, first pressure regulator valve 4, second pressure regulator valve 24, the 3rd pressure regulator valve 25, feedback oil pipe 10, first than pressure valve 51, second than pressure valve 52, pressure controlled valve 21, fuel tank 16, filter 13,15,19,20.The output oil of control oil pump 14 becomes multiplex operation oil after filter 13,15 outputs to multi-way valve 11, first via working oil is transported to control valve 1, emergency valve 2, pressure-adjustable solenoid electric valve 3 and the 3rd pressure regulator valve 25 respectively, second road working oil is transported to delivery valve 9,3rd road working oil is transported to feedback oil pipe the 10, four road working oil and is transported to the second pressure regulator valve 24; The output oil of control valve 1 exports to first than pressure valve 51 after emergency valve 2, and outputs to delivery valve 9 and pressure-adjustable solenoid electric valve 3 as control oil; The output oil of delivery valve 9 enters and drives oil cylinder 6 to become working oil after centrifugal valve 5, promotes piston and makes to produce frictional force between the friction element 7 of hydro-viscous speed governing clutch 8, thus makes the input shaft of hydro-viscous speed governing clutch 8 drive output shaft to rotate; The output oil of pressure-adjustable solenoid electric valve 3 enters centrifugal valve 5 after the first pressure regulator valve 4 becomes control oil, controls to drive the oil pressure in oil cylinder 6; Feedback oil pipe 10 is provided with two-way and exports oil, outputs to the first pressure regulator valve 4 and the second pressure regulator valve 24 control oil as them respectively; The output oil of the second pressure regulator valve 24 outputs to first than pressure valve 51, also output to the 3rd pressure regulator valve 25 as control oil simultaneously, first than pressure valve 51 for comparing the output of the second pressure regulator valve and emergency valve oil oil pressure, and one larger for oil pressure in the two is outputted to second than pressure valve 52; The output oil of the 3rd pressure regulator valve 25 outputs to second than pressure valve 52, second than pressure valve 52 for comparing than the output oil oil pressure of pressure valve and the 3rd pressure regulator valve first, and one larger for oil pressure in the two is exported to pressure controlled valve 21 control, and then the oil pressure controlled in fluid torque converter meets work requirements.
Speed governing bending moment transmission device hydraulic system also comprises lubricating pump 17, lubricating oil path 12, duplex pump 18 and relief valve 23, the output oil of lubricating pump 17 exports through duplex pump 18, a part outputs to fluid torque converter 22 through filter 19,20, for fluid torque converter is oil-filled, another part outputs to hydro-viscous speed governing clutch 8 after filter 19, relief valve 23 pressure regulation, lubricates and the friction element 7 of cooling liquid viscosity speed regulation clutch 8.
Speed governing bending moment transmission device hydraulic system major function in the utility model 2 is described as follows by reference to the accompanying drawings:
The control oil pressure of the control valve of speed governing bending moment transmission device hydraulic system remains unchanged, and under hydro-viscous speed governing clutch 8 is in slippage drive state, be heavily loaded pattern during high low pressure solenoid electric valve 3 no electric circuit of adjustable pressure, export high oil pressure to regulate centrifugal valve 5 after the first proportional dump valve 4 regulates, oil pressure in oil cylinder 6 is raised, speed governing clutch friction element 7 compresses, and speed governing bending moment transmission device exports comparatively high pulling torque; Be light-load mode when otherwise pressure-adjustable solenoid electric valve 3 is energized, this valve exports comparatively low oil pressure and regulates centrifugal valve 5 after the first proportional dump valve 4, oil pressure in oil cylinder 6 is reduced, variable-speed clutch friction element 7 compresses degree to be reduced, and the fluid torque converter output terminal controlling speed governing bending moment transmission device exports less moment of torsion.Pressure-adjustable solenoid electric valve 3 is by controlling the mode being output into the high low oil pressure of ratio, control the larger or less moment of torsion being output into proportionate relationship, two kinds of output torque proportionate relationships determine the heavy duty of speed governing bending moment transmission device and underloading control performance preferably job area.Underloading makes control accuracy and operating characteristics bring up to a new height with the working method of heavy duty.
Speed governing bending moment transmission device hydraulic system in the utility model achieves the lubrication such as the control of hydro-viscous speed governing clutch 8 output speed, fluid torque converter 22 internal work oil pressure cntrol, bearing, gear, hydro-viscous speed governing clutch 8 friction plate lubrication, operating oil pressure in oil pressure and fluid torque converter in output speed feedback control hydro-viscous speed governing clutch oil cylinder, make hydro-viscous speed governing clutch and fluid torque converter characteristics match, high efficiency running under different operating mode.
Claims (10)
1. a pressure-adjustable solenoid electric valve, is characterized in that, comprises pilot valve, connection valve and main valve that order is connected;
Described pilot valve comprises electromagnet, guide valve blocks, pilot valve and pilot valve spring, the the first oil transportation duct (A1) being provided with die cavity and being communicated with die cavity in guide valve blocks, second oil transportation duct (P1) and the 3rd oil transportation duct (A0), pilot valve spring is arranged on the cavity bottom of guide valve blocks, can move up and down under the effect of electromagnet in the die cavity that pilot valve is arranged on guide valve blocks, connect with the 3rd oil transportation duct (A0) or the first oil transportation duct (A1) optionally to make the second oil transportation duct (P1), upper end and the electromagnet of pilot valve are fixedly linked, conflict with pilot valve spring and be connected in lower end,
Described connection valve comprises and connects valve body and be connected spool, the left end and the guide valve blocks that connect valve body are fixedly linked, the duct being provided with die cavity (A2) and being communicated with the second oil transportation duct (P1) of guide valve blocks in connection valve body, connect the die cavity (A2) of valve body to be communicated with the 3rd oil transportation duct (A0) of guide valve blocks, connect spool be arranged on connect valve body die cavity (A2) in and can move left and right, be provided with endoporus (A3) at the left end connecting spool, this endoporus (A3) is communicated with the first oil transportation duct (A1) of guide valve blocks;
Described main valve comprises main valve body, main valve plug and main spring, the left end of main valve body be connected valve body and be fixedly linked, the working oil being provided with die cavity and be communicated with the die cavity of main valve body in main valve body exports (A), working oil entrance (P) and controls oil-in (X1), working oil outlet (A) is by the die cavity of this main valve body and connect valve body and is communicated with the second oil transportation duct (P1) of guide valve blocks, and main valve plug is arranged on that the die cavity of main valve body is interior also can be moved left and right; The die cavity of this main valve body comprises the main spring chamber (Y1) and control chamber (Y2) that lay respectively at the main valve plug left and right sides, and main spring is arranged in main spring chamber (Y1), and the right-hand member of main spring is pressed on the left end of main valve plug; Control oil-in (X1) to be communicated with control chamber (Y2), when controlling input control oil in oil-in (X1), main valve plug is moved to the left, and working oil outlet (A) is communicated with working oil entrance (P); Spring positioning block is provided with being connected between valve body at main valve body, the right-hand member of described connection spool passes central through bore and the main spring of this spring positioning block, and can conflict with main valve plug when moving right and be connected, between this connection spool and central through bore of spring positioning block, there is gap; The left end of described main spring is pressed on spring positioning block.
2. pressure-adjustable solenoid electric valve as claimed in claim 1, it is characterized in that: also comprise manual tune assembly, this manual tune assembly comprises Regulation spring seat, Regulation spring and adjusting screw, the left end of Regulation spring is connected to the right-hand member of main valve plug, the right-hand member of Regulation spring is connected on Regulation spring seat, and adjusting screw is arranged on the right-hand member of main valve body and is pressed on Regulation spring seat.
3. pressure-adjustable solenoid electric valve as claimed in claim 1, it is characterized in that: described pilot valve is provided with two slide blocks up and down mated with the die cavity of guide valve blocks, be provided with annular groove between two slide blocks, move up and down pilot valve and realize the second oil transportation duct (P1), the 3rd oil transportation duct (A0) to connect or connected in the first oil transportation duct (A1), the second oil transportation duct (P1) by annular groove.
4. pressure-adjustable solenoid electric valve as claimed in claim 1, is characterized in that: the two ends, left and right of described main valve plug are provided with two slide blocks mated with the die cavity of main valve body, are provided with annular groove between two slide blocks, and the end face that two slide blocks are relative is provided with chamfering.
5. the pressure-adjustable solenoid electric valve as described in claim 1 or 4, is characterized in that: be also provided with the oil transportation duct (T) be communicated with the die cavity of main valve body in described main valve body;
When controlling non-input control oil in oil-in (X1), working oil outlet (A) is communicated with the oil transportation duct (T) of main valve body; When controlling input control oil in oil-in (X1), main valve plug is moved to the left, and the oil transportation duct (T) of working oil outlet (A), working oil entrance (P) and main valve body is interconnected.
6. pressure-adjustable solenoid electric valve as claimed in claim 1, it is characterized in that: the duct that the endoporus (A3) of described connection spool is communicated with the first oil transportation duct (A1) of guide valve blocks is provided with is with throttle orifice plug screw, the duct that the die cavity (A2) of described connection valve body is communicated with the 3rd oil transportation duct (A0) of guide valve blocks is provided with is with throttle orifice plug screw.
7. pressure-adjustable solenoid electric valve as claimed in claim 1, it is characterized in that: described guide valve blocks is provided with oil return duct (T0), described main valve body, connection valve body and guide valve blocks are provided with the throttle orifice of sequential communication, and the oil return duct (T0) on the die cavity of main valve body and guide valve blocks is connected by the throttle orifice of this sequential communication.
8. pressure-adjustable solenoid electric valve as claimed in claim 7, is characterized in that: described pilot valve is provided with the intercommunicating pore spring chamber be positioned at below pilot valve and described oil return duct (T0) can connected; This intercommunicating pore is T-shaped hole, the vertical core comprising a horizontal through hole and be connected with this horizontal through hole, and the upper end of this vertical core is communicated with horizontal through hole, and the lower end of vertical core is communicated with the spring chamber of pilot valve lower end;
During described electromagnet no electric circuit, horizontal through hole and oil return duct are connected, and during electromagnet energising, this horizontal through hole and the 3rd oil transportation duct (A0) are connected.
9. adopt the speed governing bending moment transmission device hydraulic system of pressure-adjustable solenoid electric valve described in any one in claim 1 to 8, described speed governing bending moment transmission device comprises hydro-viscous speed governing clutch, drive driving oil cylinder and the fluid torque converter of this hydro-viscous speed governing clutch action, it is characterized in that: described speed governing bending moment transmission device hydraulic system comprises control oil pump, multi-way valve, control valve, emergency valve, pressure-adjustable solenoid electric valve, delivery valve, centrifugal valve, first pressure regulator valve, second pressure regulator valve, 3rd pressure regulator valve, feedback oil pipe, first compares pressure valve, second than pressure valve and pressure controlled valve, multiplex operation oil is become after the output oil of control oil pump outputs to multi-way valve, wherein, first via working oil is transported to described control valve, emergency valve, pressure-adjustable solenoid electric valve and the 3rd pressure regulator valve respectively, second road working oil is transported to described delivery valve, 3rd road working oil is transported to described feedback oil pipe, and the 4th road working oil is transported to described second pressure regulator valve, the output oil of control valve exports to described first than pressure valve after emergency valve, and does not output to described delivery valve and pressure-adjustable solenoid electric valve as control oil content, the output oil of delivery valve enters described driving oil cylinder after described centrifugal valve becomes working oil, promote to drive the piston of oil cylinder to make to produce frictional force between the friction element of described hydro-viscous speed governing clutch, thus make the input shaft of described hydro-viscous speed governing clutch drive output shaft to rotate, the output oil of pressure-adjustable solenoid electric valve enters described centrifugal valve after the first pressure regulator valve becomes control oil, controls the in-oil cylinder oil pressure of described driving, described feedback oil pipe is provided with two-way and exports oil, outputs to the first pressure regulator valve and the second pressure regulator valve control oil as the first pressure regulator valve and the second pressure regulator valve respectively, the output oil of the second pressure regulator valve outputs to first and compares pressure valve, also output to the 3rd pressure regulator valve as control oil simultaneously, first is used for comparing the output oil oil pressure of the second pressure regulator valve and emergency valve than pressure valve, and one larger for oil pressure in the two is outputted to described second and compare pressure valve, the output oil of the 3rd pressure regulator valve outputs to second and compares pressure valve, second is used for comparing than the output oil oil pressure of pressure valve and the 3rd pressure regulator valve first than pressure valve, and one larger for oil pressure in the two is exported to described pressure controlled valve, control the oil pressure in described fluid torque converter by this pressure controlled valve.
10. speed governing bending moment transmission device hydraulic system as claimed in claim 9, it is characterized in that: described speed governing bending moment transmission device hydraulic system also comprises lubricating pump, duplex pump and relief valve, the output oil of described lubricating pump exports through described duplex pump, it is that fluid torque converter is oil-filled that a part outputs to described fluid torque converter, another part outputs to described hydro-viscous speed governing clutch after described relief valve pressure regulating, lubricates and cools the friction element of this hydro-viscous speed governing clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520187957.1U CN204553818U (en) | 2015-03-31 | 2015-03-31 | Pressure-adjustable solenoid electric valve and adopt its speed governing bending moment transmission device hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520187957.1U CN204553818U (en) | 2015-03-31 | 2015-03-31 | Pressure-adjustable solenoid electric valve and adopt its speed governing bending moment transmission device hydraulic system |
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| Publication Number | Publication Date |
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| CN204553818U true CN204553818U (en) | 2015-08-12 |
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|---|---|---|---|
| CN201520187957.1U Withdrawn - After Issue CN204553818U (en) | 2015-03-31 | 2015-03-31 | Pressure-adjustable solenoid electric valve and adopt its speed governing bending moment transmission device hydraulic system |
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| CN (1) | CN204553818U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728431A (en) * | 2015-03-31 | 2015-06-24 | 中国船舶重工集团公司第七一一研究所 | Electromagnetic control valve with adjustable voltage and speed adjusting variable torque transmission device hydraulic system adopting same |
| CN105971956A (en) * | 2016-05-31 | 2016-09-28 | 宁波文泽机电技术开发有限公司 | Pilot control valve |
| CN110552927A (en) * | 2018-06-04 | 2019-12-10 | 腓特烈斯港齿轮工厂股份公司 | Pressure regulating valve |
| CN117967565A (en) * | 2024-03-28 | 2024-05-03 | 新乡市振航机电有限公司 | Composite pilot valve of emulsion pump and use method |
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2015
- 2015-03-31 CN CN201520187957.1U patent/CN204553818U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728431A (en) * | 2015-03-31 | 2015-06-24 | 中国船舶重工集团公司第七一一研究所 | Electromagnetic control valve with adjustable voltage and speed adjusting variable torque transmission device hydraulic system adopting same |
| CN104728431B (en) * | 2015-03-31 | 2017-03-08 | 中国船舶重工集团公司第七一一研究所 | Pressure-adjustable solenoid electric valve and adopt its speed governing bending moment actuating device hydraulic system |
| CN105971956A (en) * | 2016-05-31 | 2016-09-28 | 宁波文泽机电技术开发有限公司 | Pilot control valve |
| CN105971956B (en) * | 2016-05-31 | 2017-11-10 | 盐城市锦瑞石油机械有限公司 | A kind of pilot-actuated valve |
| CN110552927A (en) * | 2018-06-04 | 2019-12-10 | 腓特烈斯港齿轮工厂股份公司 | Pressure regulating valve |
| CN117967565A (en) * | 2024-03-28 | 2024-05-03 | 新乡市振航机电有限公司 | Composite pilot valve of emulsion pump and use method |
| CN117967565B (en) * | 2024-03-28 | 2024-06-07 | 新乡市振航机电有限公司 | Composite pilot valve of emulsion pump and application method thereof |
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