CN109185500A - A kind of rotating hydraulic servo reversing valve and method for detecting position with position detection - Google Patents

A kind of rotating hydraulic servo reversing valve and method for detecting position with position detection Download PDF

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Publication number
CN109185500A
CN109185500A CN201811235852.3A CN201811235852A CN109185500A CN 109185500 A CN109185500 A CN 109185500A CN 201811235852 A CN201811235852 A CN 201811235852A CN 109185500 A CN109185500 A CN 109185500A
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CN
China
Prior art keywords
hole location
cavity
spool
position detection
hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811235852.3A
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Chinese (zh)
Inventor
李庆
苏展
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dalian Qianyi Aircraft Development Technology Co Ltd
Original Assignee
Dalian Qianyi Aircraft Development Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dalian Qianyi Aircraft Development Technology Co Ltd filed Critical Dalian Qianyi Aircraft Development Technology Co Ltd
Priority to CN201811235852.3A priority Critical patent/CN109185500A/en
Publication of CN109185500A publication Critical patent/CN109185500A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/08Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
    • F16K11/085Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/041Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/046Actuating devices; Operating means; Releasing devices electric; magnetic using a motor with electric means, e.g. electric switches, to control the motor or to control a clutch between the valve and the motor

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Servomotors (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Multiple-Way Valves (AREA)

Abstract

The invention discloses a kind of rotating hydraulic servo reversing valve and method for detecting position with position detection, including change valve device, position detecting device and driving device.The change valve device includes rear end cap, shell, pull rod, drive end bearing bracket and spool, and the change valve device includes rear end cap, shell, pull rod, drive end bearing bracket and spool, and the driving device includes shaft coupling, fixing seat, motor base (frame) and motor.A kind of rotating hydraulic servo reversing valve with position detection of the invention, it is long with the service life, noise is small, calorific value is small, commutation position is accurately controlled, it can be achieved that commutation position detects the characteristics of fluid flow big fast response time when commutation, fine motion hydraulic control can be achieved, overcome the deficiencies in the prior art.

Description

A kind of rotating hydraulic servo reversing valve and method for detecting position with position detection
Technical field
The invention belongs to machine tool fields, and in particular to a kind of rotating hydraulic servo reversing valve with position detection and position inspection Survey method.
Background technique
Vibrator used in lathe requires the vibration for making cutter carry out high-frequency thin tail sheep, and main implementation is at present Motor drives eccentric shaft to realize vibration.In addition to aforesaid way, there are also electromagnetic vibrators, vibration electricity for the vibrator industrially used The shortcomings that machine, pneumatic vibrator, existing equipment is that volume and weight is big, and power output is few, installs and uses inconvenience, maintenance is big, cost Height, transmission is unstable, and noise is big, can not realize thin tail sheep high-frequency vibration.In order to overcome the deficiencies in the prior art, this Invention proposes a kind of rotating hydraulic servo reversing valve with position detection.
Summary of the invention
The present invention grinds type and proposes a kind of rotating hydraulic servo reversing valve and method for detecting position with position detection, solves Above-mentioned technical problem.
The technological means that the present invention uses is as follows: a kind of rotating hydraulic servo reversing valve with position detection, including commutation Valve gear, position detecting device and driving device;
The change valve device includes rear end cap, shell, pull rod, drive end bearing bracket and spool, and shell is arranged in the housing sidewall Body through-hole, the spool face are arranged cavity, and the shell is placed on the valve core outer surface, the spool respectively with it is described after End cap is connected with the drive end bearing bracket shaft hole matching, the shell and the spool be set to the rear end cap and the drive end bearing bracket it Between, the rear end cap is fixedly connected with the drive end bearing bracket by the pull rod;
The position detecting device includes flange seat, optoelectronic switch base, optoelectronic switch and anti-dazzling screen, the optoelectronic switch base It is fixed on the flange seat, the optoelectronic switch is fixed in the optoelectronic switch base, and the anti-dazzling screen is placed on the valve On core;
The driving device includes shaft coupling, fixing seat, motor base (frame) and motor, and the motor base (frame) is fixed on described In fixing seat, the motor is fixed on the motor base (frame), the shaft coupling both ends respectively with the spool and the electricity The motor shaft of motivation is fixedly connected.
The shaft hole matching is connected as the spool both ends setting rotation axis, the center of the rear end cap and the drive end bearing bracket It is respectively provided with connecting hole, the both ends of the rotation axis are matched with the connecting hole of the rear end cap and the drive end bearing bracket respectively.
Four housing through-holes are respectively the first hole location P, the second hole location T, third hole location A and the 4th hole location B, and described One hole location P and the third hole location A are symmetrically arranged in the housing sidewall bottom, the second hole location T and the described 4th Hole location B is symmetrically arranged in the housing sidewall top.
The cavity be four hemispherical cavities, the cavity include the first cavity C, the second cavity D, third cavity E and 4th cavity F, the first cavity C, the second cavity D, the third cavity E and the 4th cavity F are uniformly arranged on The spool face.
The first cavity C is oppositely arranged and is interconnected with the second cavity D, the first cavity E and described the Two cavity F are oppositely arranged and are interconnected.
Further, in the above-mentioned technical solutions, the flange seat is fixed on the drive end bearing bracket, for connecting described change To valve gear and the position detecting device.
Further, in the above-mentioned technical solutions, the fixing seat is fixed on the flange seat, is used for the connection position Set detection device and the driving device.
A kind of method for detecting position of the rotating hydraulic servo reversing valve with position detection, including the band position detection Rotating hydraulic servo reversing valve, it is further comprising the steps of:
S1: the first hole location P is connect with the connection of hydraulic station oil outlet, the second hole location T is connect with hydraulic station oil return opening, third hole Position A and the 4th hole location B is connected with two interfaces of vibration executive device respectively;
S2: rotational valve core 15, adjustment the first cavity C, the second cavity D, tetra- cavitys of third cavity E and the 4th cavity F with First hole location P, the second hole location T, tetra- hole locations of third hole location A and the 4th hole location B different location corresponding relationship.
Further, in above-mentioned technical proposal, the S2 step further include:
S21: the first hole location P is communicated with third hole location A, and the second hole location T is communicated with the 4th hole location B, the first hole location P and third Direction valve position is 0 ° when hole location A is communicated, and optoelectronic switch 23 is by 24 shading of anti-dazzling screen;
S22: the rotation speed of control valve core 15 is controlled by adjusting 34 revolving speed of motor, and then controls the commutation of reversal valve Frequency, spool 15 rotate 45 °, and the second hole location T is communicated with third hole location A, and the first hole location P is communicated with the 4th hole location B, are in first Secondary commutation, reversal valve worked for 1/8th periods;
S23: the rotation speed of control valve core 15 is controlled by adjusting 34 revolving speed of motor, and then controls the commutation of reversal valve Frequency, spool 15 continue 45 ° of rotation, and the second hole location T is communicated with the 4th hole location B, and the first hole location P is communicated with third hole location A, is in Second of commutation, reversal valve have worked a quarter period;
S24: continuous circulation step S21 to S23, until spool 15 rotates a circle, complete 8 commutations, 8 commutating period phases Deng.
The invention has the benefit that
(1) the rotating hydraulic servo reversing valve with position detection of the invention and method for detecting position, utilization are hydraulic It realizes power transmitting, has power output big, the service life is long, and noise is small, the small feature of calorific value;
(2) the rotating hydraulic servo reversing valve and method for detecting position with position detection of the invention has commutation Position detecting function, can real-time detection reversal valve commutation position, accurately control commutation position;
(3) the rotating hydraulic servo reversing valve and method for detecting position with position detection of the invention, liquid when commutation The big fast response time of body flow is, it can be achieved that fine motion hydraulic control.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Change valve device described in Fig. 1 specific embodiment, position detecting device and driving device overall structure diagram;
Fig. 2 is change valve device structural schematic diagram described in specific embodiment;
Fig. 3 is change-over valve core structural schematic diagram described in specific embodiment;
Fig. 4 is change-over valve core described in specific embodiment and shell schematic cross-sectional view;
Fig. 5 is position detecting device structural schematic diagram described in specific embodiment;
Fig. 6 is driving device structure schematic diagram described in specific embodiment.
In figure: 1, change valve device, 2, position detecting device, 3, driving device, 11, rear end cap, 12, shell, 13, drawing Bar, 14, drive end bearing bracket, 15, spool, 21, flange seat, 22, optoelectronic switch base, 23, optoelectronic switch, 24, anti-dazzling screen, 31, shaft coupling, 32, fixing seat, 33, motor base (frame), 34, motor, A, third hole location, B, the 4th hole location, C, the first cavity, D, the second cavity, E, third cavity, F, the 4th cavity, P, the first hole location, T, the second hole location.
Specific embodiment
Technical solution of the present invention is purged with reference to the accompanying drawings and examples, is completely described, of the invention In description, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outside", etc. The orientation or positional relationship of instruction is orientation based on the figure or relationship, is merely for convenience of the description present invention and simplification is retouched State, rather than indicate or imply specific orientation that signified device or component must have, with specific orientation construction and Operation, therefore should not be understood as limitation of the invention.
Embodiment 1
As shown in Figures 1 to 6, a kind of rotating hydraulic servo reversing valve with position detection, including change valve device, position Detection device and driving device.
The change valve device 1 includes rear end cap 11, shell 12, pull rod 13, drive end bearing bracket 14 and spool 15, the shell 12 Housing through-hole is set on side wall, and cavity is arranged in 15 surface of spool, and the shell 12 is placed on 15 outer surface of spool, institute It states spool 15 to connect with the rear end cap 11 and 14 shaft hole matching of the drive end bearing bracket respectively, the shell 12 is set with the spool 15 It is placed between the rear end cap 11 and the drive end bearing bracket 14, the rear end cap 11 is solid by the pull rod 13 with the drive end bearing bracket 14 Fixed connection;
The position detecting device 2 includes flange seat 21, optoelectronic switch base 22, optoelectronic switch 23 and anti-dazzling screen 24, described Optoelectronic switch base 22 is fixed on the flange seat 21, and the optoelectronic switch 23 is fixed in the optoelectronic switch base 22, described Anti-dazzling screen 24 is placed on the spool 15;
The driving device 3 includes shaft coupling 31, fixing seat 32, motor base (frame) 33 and motor 34, the motor base (frame) 33 are fixed in the fixing seat 32, and the motor 34 is fixed on the motor base (frame) 33,31 both ends of shaft coupling point It is not fixedly connected with the motor shaft of the spool 15 and the motor 34.
The shaft hole matching is connected as 15 both ends of the spool setting rotation axis, the rear end cap 11 and the drive end bearing bracket 14 Center be respectively provided with connecting hole, the both ends of the rotation axis connecting hole phase with the rear end cap 11 and the drive end bearing bracket 14 respectively Cooperation.
Four housing through-holes are respectively the first hole location P, the second hole location T, third hole location A and the 4th hole location B, and described The one hole location P and third hole location A is symmetrically arranged in 12 sidewall bottom of shell, the second hole location T and described Four hole location B are symmetrically arranged in 12 side wall upper part of shell.
The cavity be four hemispherical cavities, the cavity include the first cavity C, the second cavity D, third cavity E and 4th cavity F, the first cavity C, the second cavity D, the third cavity E and the 4th cavity F are uniformly arranged on 15 surface of spool.
The first cavity C is oppositely arranged and is interconnected with the second cavity D, the first cavity E and described the Two cavity F are oppositely arranged and are interconnected.
Further, in the above-mentioned technical solutions, the flange seat 21 is fixed on the drive end bearing bracket 14, for connecting State change valve device 1 and the position detecting device 2.
Further, in the above-mentioned technical solutions, the fixing seat 32 is fixed on the flange seat 21, is used for the company Connect position detecting device 2 and the driving device 3.
In use, 12 4 through-holes of shell, i.e. the first hole location P, the second hole location T, third hole location A and the 4th hole location B difference Hydraulic station oil outlet, hydraulic station oil return opening and vibration two interfaces of executive device are connected, when spool 15 rotates, by adjusting first Cavity C, the second cavity D, tetra- cavitys of third cavity E and the 4th cavity F and the first hole location P, the second hole location T, third hole location A and The different location corresponding relationship of 4th hole location of hole location B tetra- realizes commutation.
For example, the hole location P of position first shown in Fig. 4 is communicated with third hole location A, the second hole location T is communicated with the 4th hole location B.The Direction valve position is 0 ° when one hole location P is communicated with third hole location A, at this point, optoelectronic switch 23 is by 24 shading of anti-dazzling screen.Spool 15 revolves Turn 45 °, the second hole location T is communicated with third hole location A at this time, and the first hole location P is communicated with the 4th hole location B, is commutated, is changed in for the first time It worked for 1/8th periods to valve.Spool 15 continues 45 ° of rotation, and the second hole location T is communicated with the 4th hole location B at this time, the first hole Position P is communicated with third hole location A, is commutated in second, and reversal valve has worked a quarter period, thus recycled, and spool 15 revolves It circles, just completes 8 commutations, 8 commutating periods are equal.It can control control valve core 15 by adjusting 34 revolving speed of motor Rotation speed, it can the commutating frequency of reversal valve is controlled, 34 revolving speed of motor is higher, and the commutating frequency of reversal valve is bigger, Otherwise it is smaller.
Embodiment 2
A kind of method for detecting position of the rotating hydraulic servo reversing valve with position detection, including the band position detection Rotating hydraulic servo reversing valve, it is further comprising the steps of:
S1: the first hole location P is connect with the connection of hydraulic station oil outlet, the second hole location T is connect with hydraulic station oil return opening, third hole Position A and the 4th hole location B is connected with two interfaces of vibration executive device respectively;
S2: rotational valve core 15, adjustment the first cavity C, the second cavity D, tetra- cavitys of third cavity E and the 4th cavity F with First hole location P, the second hole location T, tetra- hole locations of third hole location A and the 4th hole location B different location corresponding relationship.
Further, in above-mentioned technical proposal, the S2 step further include:
S21: the first hole location P is communicated with third hole location A, and the second hole location T is communicated with the 4th hole location B, the first hole location P and third Direction valve position is 0 ° when hole location A is communicated, and optoelectronic switch 23 is by 24 shading of anti-dazzling screen;
S22: the rotation speed of control valve core 15 is controlled by adjusting 34 revolving speed of motor, and then controls the commutation of reversal valve Frequency, spool 15 rotate 45 °, and the second hole location T is communicated with third hole location A, and the first hole location P is communicated with the 4th hole location B, are in first Secondary commutation, reversal valve worked for 1/8th periods;
S23: the rotation speed of control valve core 15 is controlled by adjusting 34 revolving speed of motor, and then controls the commutation of reversal valve Frequency, spool 15 continue 45 ° of rotation, and the second hole location T is communicated with the 4th hole location B, and the first hole location P is communicated with third hole location A, is in Second of commutation, reversal valve have worked a quarter period;
S24: continuous circulation step S21 to S23, until spool 15 rotates a circle, complete 8 commutations, 8 commutating period phases Deng.
A kind of rotating hydraulic servo reversing valve and method for detecting position with position detection of the invention has the service life Long, noise is small, and calorific value is small, can be accurate, it can be achieved that commutation position detects the characteristics of fluid flow big fast response time when commutation Commutation position is controlled, it can be achieved that fine motion hydraulic control, overcomes the deficiencies in the prior art.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention and without being limited thereto, appoint What those familiar with the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its sends out Bright design is subject to equivalent substitution or change, is all included within the scope of the present invention.

Claims (8)

1. a kind of rotating hydraulic servo reversing valve with position detection, it is characterised in that: filled including change valve device, position detection It sets and driving device;
The change valve device includes rear end cap, shell, pull rod, drive end bearing bracket and spool, and setting shell is logical in the housing sidewall Hole, the spool face are arranged cavity, and the shell is placed on the valve core outer surface, the spool respectively with the rear end cap It being connected with the drive end bearing bracket shaft hole matching, the shell and the spool are set between the rear end cap and the drive end bearing bracket, The rear end cap is fixedly connected with the drive end bearing bracket by the pull rod;
The position detecting device includes flange seat, optoelectronic switch base, optoelectronic switch and anti-dazzling screen, and the optoelectronic switch base is fixed In on the flange seat, the optoelectronic switch is fixed in the optoelectronic switch base, and the anti-dazzling screen is placed on the spool;
The driving device includes shaft coupling, fixing seat, motor base (frame) and motor, and the motor base (frame) is fixed on the fixation On seat, the motor is fixed on the motor base (frame), the shaft coupling both ends respectively with the spool and the motor Motor shaft be fixedly connected.
2. the rotating hydraulic servo reversing valve with position detection according to claim 1, it is characterised in that: the shaft hole matching It is connected as spool both ends setting rotation axis, the center of the rear end cap and the drive end bearing bracket is respectively provided with connecting hole, and described turn The both ends of moving axis are matched with the connecting hole of the rear end cap and the drive end bearing bracket respectively.
3. the rotating hydraulic servo reversing valve with position detection according to claim 1, it is characterised in that: the cavity is four A hemispherical cavity, the cavity include the first cavity C, the second cavity D, third cavity E and the 4th cavity F, first chamber Body C, the second cavity D, the third cavity E and the 4th cavity F are uniformly arranged on the spool face.
4. the rotating hydraulic servo reversing valve with position detection according to claim 1, it is characterised in that: first cavity C is oppositely arranged and is interconnected with the second cavity D, and the first cavity E and the second cavity F are oppositely arranged and mutually Connection.
5. the rotating hydraulic servo reversing valve with position detection according to claim 1, it is characterised in that: the flange seat is solid Due on the drive end bearing bracket, for connecting the change valve device and the position detecting device.
6. the rotating hydraulic servo reversing valve with position detection according to claim 1, it is characterised in that: the fixing seat is solid Due on the flange seat, it to be used for the link position detection device and the driving device.
7. a kind of method for detecting position of the rotating hydraulic servo reversing valve with position detection, it is characterised in that: including such as right It is required that the rotating hydraulic servo reversing valve described in 1 with position detection, further comprising the steps of:
S1: the first hole location P is connect with the connection of hydraulic station oil outlet, the second hole location T is connect with hydraulic station oil return opening, third hole location A It is connected respectively with two interfaces of vibration executive device with the 4th hole location B;
S2: rotational valve core 15 adjusts the first cavity C, the second cavity D, tetra- cavitys of third cavity E and the 4th cavity F and first Hole location P, the second hole location T, tetra- hole locations of third hole location A and the 4th hole location B different location corresponding relationship.
8. the method for detecting position of the rotating hydraulic servo reversing valve with position detection, feature exist according to claim 7 In: the S2 step further include:
S21: the first hole location P is communicated with third hole location A, and the second hole location T is communicated with the 4th hole location B, the first hole location P and third hole location Direction valve position is 0 ° when A is communicated, and optoelectronic switch 23 is by 24 shading of anti-dazzling screen;
S22: controlling the rotation speed of control valve core 15 by adjusting 34 revolving speed of motor, and then controls the commutation frequency of reversal valve Rate, spool 15 rotate 45 °, and the second hole location T is communicated with third hole location A, and the first hole location P is communicated with the 4th hole location B, in for the first time Commutation, reversal valve worked for 1/8th periods;
S23: controlling the rotation speed of control valve core 15 by adjusting 34 revolving speed of motor, and then controls the commutation frequency of reversal valve Rate, spool 15 continue 45 ° of rotation, and the second hole location T is communicated with the 4th hole location B, and the first hole location P is communicated with third hole location A, are in the Secondary commutation, reversal valve have worked a quarter period;
S24: continuous circulation step S21 to S23, until spool 15 rotates a circle, 8 commutations are completed, 8 commutating periods are equal.
CN201811235852.3A 2018-10-24 2018-10-24 A kind of rotating hydraulic servo reversing valve and method for detecting position with position detection Pending CN109185500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811235852.3A CN109185500A (en) 2018-10-24 2018-10-24 A kind of rotating hydraulic servo reversing valve and method for detecting position with position detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811235852.3A CN109185500A (en) 2018-10-24 2018-10-24 A kind of rotating hydraulic servo reversing valve and method for detecting position with position detection

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Publication Number Publication Date
CN109185500A true CN109185500A (en) 2019-01-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111379976A (en) * 2020-04-29 2020-07-07 青岛络英电子有限公司 Rotary gas commutator and control method
CN113932038A (en) * 2021-10-18 2022-01-14 杭州富阳恒通机电工程有限公司 Material distributing valve

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2907349A (en) * 1958-07-15 1959-10-06 Howard T White Balanced rotary four way valve
CN2578630Y (en) * 2002-10-25 2003-10-08 银川东方运输设备有限公司 Rotary four-way fluid switching valves
CN2637858Y (en) * 2003-08-18 2004-09-01 宁夏瑞赛尔商务有限公司 Multichannel distributing valve with detecting positioner
CN209041649U (en) * 2018-10-24 2019-06-28 大连乾宜航发科技有限公司 A kind of rotating hydraulic servo reversing valve with position detection

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2907349A (en) * 1958-07-15 1959-10-06 Howard T White Balanced rotary four way valve
CN2578630Y (en) * 2002-10-25 2003-10-08 银川东方运输设备有限公司 Rotary four-way fluid switching valves
CN2637858Y (en) * 2003-08-18 2004-09-01 宁夏瑞赛尔商务有限公司 Multichannel distributing valve with detecting positioner
CN209041649U (en) * 2018-10-24 2019-06-28 大连乾宜航发科技有限公司 A kind of rotating hydraulic servo reversing valve with position detection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111379976A (en) * 2020-04-29 2020-07-07 青岛络英电子有限公司 Rotary gas commutator and control method
CN113932038A (en) * 2021-10-18 2022-01-14 杭州富阳恒通机电工程有限公司 Material distributing valve

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Application publication date: 20190111

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