WO2022143430A1 - 油口单独控制的液压多路阀及其控制方法 - Google Patents
油口单独控制的液压多路阀及其控制方法 Download PDFInfo
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- WO2022143430A1 WO2022143430A1 PCT/CN2021/140996 CN2021140996W WO2022143430A1 WO 2022143430 A1 WO2022143430 A1 WO 2022143430A1 CN 2021140996 W CN2021140996 W CN 2021140996W WO 2022143430 A1 WO2022143430 A1 WO 2022143430A1
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- oil port
- way valve
- convex ring
- spool
- oil
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 claims description 23
- 230000033001 locomotion Effects 0.000 claims description 22
- 230000007935 neutral effect Effects 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000011324 bead Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005315 distribution function Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
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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
- F16K11/22—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 actuating member for each valve, e.g. interconnected to form multiple-way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
- F15B13/0433—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the pilot valves being pressure control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
- F15B13/0435—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the pilot valves being sliding valves
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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
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0712—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides comprising particular spool-valve sealing means
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/42—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor
- F16K31/423—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor the actuated members consisting of multiple way valves
- F16K31/426—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor the actuated members consisting of multiple way valves the actuated valves being cylindrical sliding valves
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B2013/0409—Position sensing or feedback of the valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B2013/0412—Valve members; Fluid interconnections therefor with three positions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
- F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
- F15B2211/3057—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve having two valves, one for each port of a double-acting output member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6306—Electronic controllers using input signals representing a pressure
- F15B2211/6313—Electronic controllers using input signals representing a pressure the pressure being a load pressure
Definitions
- the A pilot driver is installed on the valve body of the multi-way valve to control the movement of the A spool
- the B pilot driver is installed on the valve body of the multi-way valve to control the movement of the B spool.
- Fig. 1 is the hydraulic principle diagram of the hydraulic multi-way valve independently controlled by the oil port of the present application
- Figure 3 is a schematic diagram of the structure of the invented hydraulic multi-way valve with oil outlet A oil outlet and oil outlet B returning oil;
- FIG. 4 is a schematic structural diagram of the hydraulic multi-way valve with independent control of the oil ports of the invention when the oil port A returns oil, and the oil port B discharges oil.
- the A pilot driver 10 is installed on the multi-way valve body 1 to control the movement of the A spool 8
- the B pilot driver 11 is installed on the multi-way valve body 1 to control the movement of the B spool 9 .
- the opposite surfaces of the convex ring 83 are provided with A opening grooves 85.
- the A opening groove 85 on the second A convex ring 82 is communicated with the outer ring of the second A convex ring 82, and the A opening on the third A convex ring 83 is open.
- the groove 85 communicates with the outer ring of the third A convex ring 83 .
- the A open groove and the B open groove on the spool are used for oil.
- the A-opening slot 85 and the B-opening slot 95 may be of any suitable shape, such as a U-shape.
- the A-opening grooves 85 and B-opening grooves 95 are evenly arranged on the circumferences of the corresponding convex rings.
- the A-opening grooves 85 on the opposite surfaces of the second A convex ring 82 and the third A convex ring 83 are open oppositely.
- the openings of the B opening grooves 95 on the opposite surfaces of the convex ring 92 and the third B convex ring 93 are oppositely arranged.
- the A-type cavity 4 is in the shape of a column as a whole, the A-type mandrel 80 and the A-type cavity 4 are coaxially arranged, and the A-type cavity 4 is sequentially provided with the first A-ring groove 41 , the second A-ring groove 42 and the first A-ring groove 41 from front to back. Triple A annular groove 43 .
- the first A oil chamber is only communicated with the P high pressure oil port 6, and the second A convex A second A oil chamber is formed between the ring 82, the third A convex ring 83 and the second A annular groove 42.
- the second A oil chamber is only communicated with the A oil port 2, and the third A convex ring 83 is connected to the second A oil chamber.
- a third A oil cavity is formed between the four A convex rings 84 and the third A annular groove 43 , and the third A oil cavity is only communicated with the T high pressure oil port 7 .
- the outer rings of the first B convex ring 91 , the second B convex ring 92 , the third B convex ring 93 and the fourth B convex ring 94 are all in contact with the inner wall of the B-shaped cavity 5 , so that no oil can flow between the outer rings of the first B convex ring 91, the second B convex ring 92, the third B convex ring 93 and the fourth B convex ring 94 and the inner wall of the B-shaped cavity 5, the first B convex ring A first B oil chamber is formed between the convex ring 91 and the second B convex ring 92 and the first B annular groove 51.
- a displacement sensor for detecting the A spool 8 is mounted on the A pilot driver 10
- a displacement sensor for detecting the B spool 9 is mounted on each of the B pilot drivers 11 .
- the pilot control driver is equipped with a displacement sensor.
- the displacement sensor mainly detects the displacement change of the push rod on each pilot driver, which can accurately control the stroke of the main spool, form a closed-loop control, and ensure the accuracy and fretting of the output flow.
- the B opening groove 95 on the B convex ring 93 flows into the space between the third B convex ring 93 and the fourth B convex ring 94 , and the third B convex ring 93 and the fourth B convex ring 94 are connected with the third B annular groove.
- 53 is connected, the third B annular groove 53 is communicated with the T high pressure oil port 7, the B oil port 3 is communicated with the second B annular groove 52, so that the T high pressure oil port 7 and the B oil port 3 are communicated, and the B oil port 3. Oil return, at this time, the oil in the first B annular groove 51 cannot enter the second B annular groove 52 through the B opening groove 95 on the second B convex ring 93 .
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Multiple-Way Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Description
Claims (20)
- 一种油口单独控制的液压多路阀,包括:多路阀阀体(1),所述多路阀阀体(1)上设置有A油口(2)、B油口(3),所述多路阀阀体(1)内设置有相互独立的A型腔(4)和B型腔(5),所述A油口(2)、P高压油口(6)和T高压油口(7)均和所述A型腔(4)相连通,所述B油口(3)、P高压油口(6)和T高压油口(7)均和所述B型腔(5)相连通,A阀芯(8),设置于所述A型腔(4)内,所述A阀芯(8)在所述A型腔(4)内的往复运动能够控制所述A油口(2)的打开与关闭、所述P高压油口(6)与所述A阀芯(8)的连通和关闭和所述T高压油口(7)与所述A阀芯(8)的连通和关闭,B阀芯(9),设置于所述B型腔(5)内,所述B阀芯(9)在所述B型腔(5)内的往复运动能够控制所述B油口(3)的打开与关闭、所述P高压油口(6)与所述B阀芯(9)的连通和关闭和所述T高压油口(7)与所述B阀芯(9)的连通和关闭,A先导驱动器(10),安装在多路阀阀体(1)上,用于控制A阀芯(8)的运动,和B先导驱动器(11),安装在多路阀阀体(1)上,用于控制B阀芯(9)的运动。
- 如权利要求1所述的油口单独控制的液压多路阀,其中所述A先导驱动器(10)安装在所述多路阀阀体(1)的后端,具有电磁阀a和电磁阀b1,所述电磁阀a能够控制给所述A型腔(4)的后端内供油,所述电磁阀b1能够控制给所述B型腔(5)的后端内供油,和/或所述B先导驱动器(11)安装在所述多路阀阀体(1)的前端,具有电磁阀a1和电磁阀b,所述电磁阀a1能够控制给所述A型腔(4)的前端内供油,所述电磁阀b能够控制给所述B型腔(5)的前端内供油。
- 如权利要求1或2所述的油口单独控制的液压多路阀,其中所述A阀芯(8)包括A芯轴(80),其中A芯轴(80)从前往后依次固定套装有相互间隔设置的且与所述A型腔(4)的内壁贴合的第一A凸圈(81)、第二A凸圈(82)、第三A凸圈(83)和第四A凸圈(84),和/或所述B阀芯(9)包括B芯轴(90),其中B芯轴(90)从前往后依次固定套装有相互间隔设置的且与所述B型腔(5)的内壁贴合的第一B凸圈(91)、第二B凸圈(92)、第三B凸圈(93)和第四B凸圈(94)。
- 如权利要求3所述的油口单独控制的液压多路阀,其中所述第一A凸圈(81)、第二A凸圈(82)、第三A凸圈(83)和第四A凸圈(84)具有相同的外径,和/或所述第一 B凸圈(91)、第二B凸圈(92)、第三B凸圈(93)和第四B凸圈(94)具有相同的外径。
- 如权利要求3或4所述的油口单独控制的液压多路阀,其中所述第二A凸圈(82)和所述第三A凸圈(83)的相对面上均开设有A开口槽(85),所述第二A凸圈(82)上的A开口槽(85)与所述第二A凸圈(82)的外圈相连通,所述第三A凸圈(83)上的A开口槽(85)与所述第三A凸圈(83)的外圈相连通,和/或所述第二B凸圈(92)和所述第三B凸圈(93)的相对面上均开设有B开口槽(95),所述第二B凸圈(92)上的B开口槽(95)与所述第二B凸圈(92)的外圈相连通,所述第三B凸圈(93)上的B开口槽(95)与所述第三B凸圈(93)的外圈相连通。
- 如权利要求5所述的油口单独控制的液压多路阀,其中所述A开口槽(85)和/或所述B开口槽(95)为U形状,其中所述第二A凸圈(82)和第三A凸圈(83)的相对面上的A开口槽(85)开口相对设置和/或所述第二B凸圈(92)和第三B凸圈(93)的相对面上的B开口槽(95)开口相对设置。
- 如权利要求1-6中任一项所述的油口单独控制的液压多路阀,其中所述A型腔(4)内部从前往后依次环设有第一A环形凹槽(41)、第二A环形凹槽(42)和第三A环形凹槽(43),其中当所述A阀芯(8)处于中位状态时,所述第一A环形凹槽(41)、所述第二A环形凹槽(42)和所述第三A环形凹槽(43)各自封闭均不连通,所述A油口(2)与所述第二A环形凹槽(42)相连通,所述P高压油口(6)与所述第一A环形凹槽(41)相连通,所述T高压油口(7)与所述第三A环形凹槽(43)相连通。
- 如权利要求1-7中任一项所述的油口单独控制的液压多路阀,其中所述B型腔(5)内部从前往后依次环设有第一B环形凹槽(51)、第二B环形凹槽(52)和第三B环形凹槽(53),其中当所述B阀芯(9)处于中位状态时,所述第一B环形凹槽(51)、所述第二B环形凹槽(52)和所述第三B环形凹槽(53)各自封闭均不连通,所述B油口(3)与第二B环形凹槽(52)相连通,所述P高压油口(6)与所述第一B环形凹槽(51)相连通,所述T高压油口(7)与所述第三B环形凹槽(53)相连通。
- 如权利要求1-8中任一项所述的油口单独控制的液压多路阀,其中所述A型腔(4)整体呈柱状,和/或所述B型腔(5)整体呈柱状。
- 如权利要求1-9中任一项所述的油口单独控制的液压多路阀,其中所述A阀芯(8)和所述A型腔(4)同轴设置,和/或所述B阀芯(9)和所述B型腔(5)同轴设置。
- 如权利要求7所述的油口单独控制的液压多路阀,其中所述A型腔(4)的后部还设置有第四A环形凹槽(44),所述A阀芯(8)的后端固定连接有A限位螺钉(12),所述A限位螺钉(12)上还套装有A限位弹簧(13),所述A限位弹簧(13)位于所述第四A环形凹槽(44)内,且处于压缩状态,所述A限位弹簧(13)的两端还分别设置有A弹簧座(14),两个A弹簧座(14)分别抵靠在所述第四环形凹槽(44)内的前端面和后端面上。
- 如权利要求11所述的油口单独控制的液压多路阀,其中所述A先导驱动器(10)上设置有A推杆(19),所述A推杆(19)伸入所述A型腔(4)内且抵止在所述A限位螺钉(12)的后端。
- 如权利要求12所述的油口单独控制的液压多路阀,其中所述A推杆(19)和所述A先导驱动器(10)之间设有A复位弹簧(20)。
- 如权利要求8所述的油口单独控制的液压多路阀,其中所述B型腔(5)的后部还设置有第四B环形凹槽(54),所述B阀芯(9)的后端固定连接有B限位螺钉(15),所述B限位螺钉(15)上还套装有B限位弹簧(16),所述B限位弹簧(16)位于所述第四B环形凹槽(54)内,且处于压缩状态,所述B限位弹簧(16)的两端还分别设置有B弹簧座(17),两个B弹簧座(17)分别抵靠在所述第四B环形凹槽(54)内的前端面和后端面上。
- 如权利要求1-14中任一项所述的油口单独控制的液压多路阀,其中所述B先导驱动器(11)上设置有B推杆(18),所述B推杆(18)伸入所述B型腔(5)内且抵止在所述B阀芯(9)的前端。
- 如权利要求15所述的油口单独控制的液压多路阀,其中所述B推杆(18)和所述B先导驱动器(11)之间设有B复位弹簧(21)。
- 如权利要求1-16中任一项所述的油口单独控制的液压多路阀,其中所述A先导驱动器(10)上安装有用于检测A阀芯(8)的位移传感器,B先导驱动器(11)上安装有用于检测B阀芯(9)的位移传感器。
- 一种油口单独控制的液压多路阀的控制方法,采用如权利要求1-17任一项所述的油口单独控制的液压多路阀,所述液压多路阀连接有控制器,所述P高压油口(6)和所述T高压油口(7)和油箱连接,所述控制方法包括:当所述液压多路阀处于待工作状态时,所述A先导驱动器(10)和所述B先导驱动器(11)均不工作,所述电磁阀a、b、a1和b1均处于失电状态,所述A阀芯(8)和所述B阀芯(9)处于中位状态,所述A油口(2)和所述B油口(3)均处于封闭状态;当所述液压多路阀处于A油口(2)出油,B油口(3)回油的工作状态时,所述A先导 驱动器(10)的所述电磁阀a工作,所述A型腔(4)的后端内输入压力油,推动A阀芯(8)向前运动进行换向,使P高压油口(6)和A油口(2)油口连通,A油口(2)输出压力油;B先导驱动器(11)上的电磁阀b工作,B型腔(5)的前端内输入压力油,推动B阀芯(9)向后运动,B阀芯(9)进行换向,使T高压油口(7)和B油口(3)连通,B油口(3)回油;和当所述液压多路阀处于B油口(3)出油,A油口(2)回油的工作状态时,B先导驱动器(11)的电磁阀a1工作,A型腔(4)的前端内输入压力油,推动A阀芯(8)向后运动进行换向,使回油T高压油口(7)和A油口(2)连通,A油口(2)回油,A先导驱动器(10)的电磁阀b1工作,B型腔(5)的后端内输入压力油,推动B阀芯(9)向前运动进行换向,使P高压油口(6)和B油口(3)连通,B油口(3)输出压力油。
- 如权利要求18所述的油口单独控制的液压多路阀的控制方法,其中所述A阀芯(8)的运动能够使得A推杆(19)运动,检测A推杆(19)的位移传感器能够检测A推杆(19)的位移并反馈给控制器,B阀芯(9)的运动能够使得B推杆(18)运动,检测B推杆(18)的位移传感器能够检测B推杆(18)的位移并反馈给控制器。
- 如权利要求18或19所述的油口单独控制的液压多路阀的控制方法,其中所述液压多路阀具有温度传感器,用于检测环境温度变化并将温度数据传输到所述控制器,所述控制器根据环境温度的不同,进行温度补偿调节。
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CN113753011B (zh) * | 2021-09-14 | 2023-02-03 | 青岛纳惟信动力科技有限公司 | 一种液控并联双路液压动力制动阀 |
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