CN109519431A - Deflecting plates jet servo valve based on increasing material manufacturing valve body structure - Google Patents

Deflecting plates jet servo valve based on increasing material manufacturing valve body structure Download PDF

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Publication number
CN109519431A
CN109519431A CN201811440120.8A CN201811440120A CN109519431A CN 109519431 A CN109519431 A CN 109519431A CN 201811440120 A CN201811440120 A CN 201811440120A CN 109519431 A CN109519431 A CN 109519431A
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CN
China
Prior art keywords
valve body
valve
material manufacturing
spool
deflecting plates
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
CN201811440120.8A
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Chinese (zh)
Inventor
任晓军
刘志会
吕登州
曹伟
李凌
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.)
Xian Flight Automatic Control Research Institute of AVIC
Original Assignee
Xian Flight Automatic Control Research Institute of AVIC
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 Xian Flight Automatic Control Research Institute of AVIC filed Critical Xian Flight Automatic Control Research Institute of AVIC
Priority to CN201811440120.8A priority Critical patent/CN109519431A/en
Publication of CN109519431A publication Critical patent/CN109519431A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F15B13/021Valves for interconnecting the fluid chambers of an actuator

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Servomotors (AREA)

Abstract

The invention belongs to Hydraulic Servo Control Technologies, more particularly to the deflecting plates jet servo valve based on increasing material manufacturing valve body structure, including valve body, valve pocket, spool, torque-motor component, fluidic module, valve inner installs valve pocket, spool is installed inside valve pocket, spool both ends installation valve core plug is limited, valve body left and right ends are connected by screw to end cap, torque-motor component is mounted on valve body upper surface by screw, for driving prestage to move, change spool pressure at both sides, driving valve core movement simultaneously forms feedback, sliding fit is installed inside upper housing in fluidic module and valve body, position finger setting, based on increases material manufacturing technology, by valve body and fluidic module upper housing, positioning pin design is integrated.Valve body that the structure present invention proposed by the present invention designs, upper housing, positioning pin integral structure, do not need to be pressed plug, reduce resetting difficulty, improve adjustment efficiency, avoid plug failure bring oil liquid leakage risk, improve product reliability.

Description

Deflecting plates jet servo valve based on increasing material manufacturing valve body structure
Technical field
The invention belongs to Hydraulic Servo Control Technologies, and in particular to the deflecting plates jet stream based on increasing material manufacturing valve body structure is watched Take valve.
Background technique
Electrohydraulic servo valve is the important composition of servo-control system as a kind of typical conversion, amplification and control element Part.Deflecting plates servo valve replaces Dual Injector Baffle hydraulic amplifier using deflected jet amplifier, compared to traditional spray Mouth-baffle-type electrohydraulic servo valve has the advantages such as high reliability, high-performance, small in size, light-weight, is widely used in flying greatly Many aerospace fields such as machine, carrier rocket.Since servo valve valve inner oil circuit is complicated, typical deflecting plates jet stream servo Valve body oil circuit is linked up, and is needed from valve outer wall cross borehole, and is beaten plug in valve outer wall and guaranteed sealing, and cumbersome block up is needed Head press fitting link, adjustment low efficiency, and have the risk of plug seal failure.Meanwhile typical deflecting plates jet servo valve valve Body is separated with upper housing and fluidic module positioning pin, and fluidic module and upper housing are sliding fits, and relative position is difficult to accurately Control is easy rotation, there is the risk for generating zero bias.
Summary of the invention
The technical problem to be solved in the present invention:
The present invention utilizes the advantage of increases material manufacturing technology free forming, solves valve body outside need and beats plug, adjustment effect The problems such as rate is low, there are plug seal failure risks, meanwhile, valve body and fluidic module upper housing, positioning pin design are integrated, Solve that upper and lower jet stream cover board positioning accuracy is low, is easy to produce the problems such as zero bias, to improve the reliable of electrohydraulic servo valve product Property.
Technical solution of the present invention:
Deflecting plates jet stream electrohydraulic servo valve proposed by the present invention based on increasing material manufacturing valve body structure, including valve body, valve pocket, Spool, torque-motor component, fluidic module, valve inner install valve pocket, spool are installed inside valve pocket, and spool is installed at spool both ends Plug is limited, and valve body left and right ends are connected by screw to end cap, and torque-motor component is mounted on valve body upper end by screw Face changes spool pressure at both sides, drives valve core movement and form feedback, fluidic module and valve body for driving prestage to move Sliding fit installation inside middle upper housing, and by positioning finger setting in valve body, it is characterised in that: it is based on increases material manufacturing technology, it will Valve body is integrated with fluidic module upper housing, positioning pin design.
Beneficial effects of the present invention:
Deflecting plates jet stream electrohydraulic servo valve proposed by the present invention based on increasing material manufacturing valve body structure, do not need to plug into Row press fitting, reduces resetting difficulty, improves adjustment efficiency, avoids plug failure bring oil liquid leakage risk, improves Product reliability;Valve body that the present invention designs, upper housing, positioning pin integral structure, do not need individually to assemble upper housing, improve Fluidic module positioning accuracy improves the zero stability of deflecting plates jet servo valve.
Detailed description of the invention
Fig. 1 is increasing material manufacturing valve body structure schematic diagram,
Fig. 2 is the deflecting plates jet stream electrohydraulic servo valve structural schematic diagram based on increasing material manufacturing valve body structure,
Fig. 3 is the deflecting plates jet stream electrohydraulic servo valve structural schematic diagram based on increasing material manufacturing valve body structure.
Number explanation: 1- outer cover, 2- torque-motor component, 3- fluidic module, 4- valve body, 5- valve pocket, 6- valve core plug, 7- Spool, 8- end cap, 9- protection board 10- oil filter component, 4-1- valve body, 4-2- upper housing, 4-3- positioning pin.
Specific embodiment
Deflecting plates jet stream electrohydraulic servo valve based on increasing material manufacturing valve body structure mainly includes valve body (4), valve pocket (5), valve Core (7), torque-motor component (2), fluidic module (3) part;Valve pocket (5) are installed inside valve body (4), are equipped with inside valve pocket (5) Spool (7), spool (7) both ends installation valve core plug (6) are limited, and valve body (4) left and right ends are connected by screw to end cap (8), torque-motor component (2) is installed on valve body (4) upper surface by screw, for driving prestage to move, changes spool two Lateral pressure drives valve core movement and forms feedback;Sliding fit is installed inside upper housing in fluidic module (3) and valve body (4), and is led to It crosses and positions finger setting in valve body (4);Outer cover (1) is installed on valve body (4), for protecting torque motor sub-assembly (2), valve body (4) Bottom surface is equipped with protection board (9), prevents from polluting;Oil filter component (10), which is connected through a screw thread, to be mounted on above valve body oil inlet, is used for Filtering enters the oil liquid of jet stream grade receiving cavity, improves oil cleanliness.
On the basis of above structure, outer cover is also equipped on valve body, for protecting torque motor sub-assembly.
On the basis of above structure, valve body bottom surface is equipped with protection board, prevents from polluting.
On the basis of above structure, oil filter component, which is connected through a screw thread, to be mounted on above valve body oil inlet, for filtering Into the oil liquid of jet stream grade receiving cavity, oil cleanliness is improved.
Deflecting plates jet servo valve proposed by the present invention based on increasing material manufacturing valve body structure, valve body utilize increasing material manufacturing skill The advantage of art, can break through the limitation that cross borehole mode designs oil circuit, oil circuit in valve inner free forming, regardless of Outside sealing avoids cumbersome plug press fitting link, reduces the resetting difficulty of deflecting plates jet servo valve, avoid plug Failure risk caused by failure.Meanwhile being integrated valve body and upper housing, the design of fluidic module positioning pin, improve jet stream up and down Cover board positioning accuracy reduces adjustment process, helps to improve the zero stability of deflecting plates jet servo valve, substantially increases partially Rotating plate jet servo valve reliability.

Claims (4)

1. the deflecting plates jet stream electrohydraulic servo valve based on increasing material manufacturing valve body structure, including valve body (4), valve pocket (5), spool (7), Torque-motor component (2), fluidic module (3), valve body (4) is internal to install valve pocket (5), installs spool (7) inside valve pocket (5), valve Core both ends installation valve core plug (6) is limited, and valve body left and right ends are connected by screw to end cap (8), torque-motor component (2) It is mounted on valve body (4) upper surface by screw, for driving prestage to move, changes spool pressure at both sides, drives valve core movement And feedback is formed, sliding fit is installed inside fluidic module (3) and valve body upper housing, and is positioned by positioning pin (4-3) in valve body, It is characterized by: being based on increases material manufacturing technology, valve body (4) and fluidic module upper housing, positioning pin (4-3) design are integrated.
2. the deflecting plates jet stream electrohydraulic servo valve according to claim 1 based on increasing material manufacturing valve body structure, feature exist In: valve body is also equipped with outer cover on (4).
3. the deflecting plates jet stream electrohydraulic servo valve according to claim 1 based on increasing material manufacturing valve body structure, feature exist In: valve body (4) bottom surface is equipped with protection board.
4. the deflecting plates jet stream electrohydraulic servo valve according to claim 1 based on increasing material manufacturing valve body structure, feature exist In: it is equipped with above the oil inlet of valve body (4) oil filter component (10).
CN201811440120.8A 2018-11-28 2018-11-28 Deflecting plates jet servo valve based on increasing material manufacturing valve body structure Pending CN109519431A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811440120.8A CN109519431A (en) 2018-11-28 2018-11-28 Deflecting plates jet servo valve based on increasing material manufacturing valve body structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811440120.8A CN109519431A (en) 2018-11-28 2018-11-28 Deflecting plates jet servo valve based on increasing material manufacturing valve body structure

Publications (1)

Publication Number Publication Date
CN109519431A true CN109519431A (en) 2019-03-26

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110905878A (en) * 2019-10-29 2020-03-24 中国航空工业集团公司西安飞行自动控制研究所 Pressure-mounting type front-stage deflection plate jet flow servo valve
CN111779724A (en) * 2020-07-09 2020-10-16 燕山大学 Hydraulic integrated valve block for aviation electro-hydrostatic actuating system
CN114007895A (en) * 2019-07-25 2022-02-01 Abb瑞士股份有限公司 Charging device for charging electric vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3234987A1 (en) * 1981-09-26 1983-04-14 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Adjustable restricting valve
CN101310932A (en) * 2007-05-22 2008-11-26 上海诺玛液压系统有限公司 Assembly fixture of armature assembly for electrohydraulic servo valve
CN205689512U (en) * 2015-11-06 2016-11-16 中国航空工业第六一八研究所 A kind of electricity reaction type deflecting plates jet electrohydraulic servo valve
CN107725519A (en) * 2017-11-01 2018-02-23 湖北航达科技有限公司 The board-like electrohydraulic servo valve of small size high frequency high linearity jet deflection and application method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3234987A1 (en) * 1981-09-26 1983-04-14 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Adjustable restricting valve
CN101310932A (en) * 2007-05-22 2008-11-26 上海诺玛液压系统有限公司 Assembly fixture of armature assembly for electrohydraulic servo valve
CN205689512U (en) * 2015-11-06 2016-11-16 中国航空工业第六一八研究所 A kind of electricity reaction type deflecting plates jet electrohydraulic servo valve
CN107725519A (en) * 2017-11-01 2018-02-23 湖北航达科技有限公司 The board-like electrohydraulic servo valve of small size high frequency high linearity jet deflection and application method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
施虎等: "现代液压传动技术的若干新特点及其发展趋势", 《机床与液压》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114007895A (en) * 2019-07-25 2022-02-01 Abb瑞士股份有限公司 Charging device for charging electric vehicle
CN114007895B (en) * 2019-07-25 2024-03-12 Abb电动汽车有限责任公司 Charging device for charging electric vehicle
CN110905878A (en) * 2019-10-29 2020-03-24 中国航空工业集团公司西安飞行自动控制研究所 Pressure-mounting type front-stage deflection plate jet flow servo valve
CN111779724A (en) * 2020-07-09 2020-10-16 燕山大学 Hydraulic integrated valve block for aviation electro-hydrostatic actuating system

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Inventor after: Ren Xiaojun

Inventor after: Liu Zhihui

Inventor after: Lv Dengzhou

Inventor after: Cao Wei

Inventor after: Li Ling

Inventor before: Ren Xiaojun

Inventor before: Liu Zhihui

Inventor before: Lv Dengzhou

Inventor before: Cao Wei

Inventor before: Li Ling

RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20190326