CN208294865U - A kind of dual input servo valve - Google Patents
A kind of dual input servo valve Download PDFInfo
- Publication number
- CN208294865U CN208294865U CN201820590794.5U CN201820590794U CN208294865U CN 208294865 U CN208294865 U CN 208294865U CN 201820590794 U CN201820590794 U CN 201820590794U CN 208294865 U CN208294865 U CN 208294865U
- Authority
- CN
- China
- Prior art keywords
- end cap
- valve body
- right end
- torque
- motor
- 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.)
- Expired - Fee Related
Links
Landscapes
- Servomotors (AREA)
Abstract
The utility model discloses a kind of dual input servo valves, including valve body, torque-motor, the both ends of the valve body are provided with left end cap and right end cap, plug is provided in the left end cap and right end cap, dirt-proof boot is provided on the outside of the left end cap, core assembly is equipped in the valve body, the upper end of the valve body is connected with torque-motor, the outside of the torque-motor is equipped with the upper cover for protecting torque-motor, the right end of the upper cover is equipped with transition block, the transition block right end is equipped with connector assembly, recipient and jet nozzle are equipped between the valve body and torque-motor, the jet nozzle is located at the upper end of receiver, ball-head tension rod is connected on the outside of the right end cap.The utility model is scientific and reasonable for structure, the control precision and stability of servo valve are further improved by setting jet nozzle and recipient, while a ball-head tension rod is set on the outside of valve body right end cap, is avoided under unexpected power blackout situation, servo valve is unable to control, and improves the stability of product.
Description
Technical field
The utility model belongs to servo valve technology field, and in particular to a kind of dual input servo valve.
Background technique
Servo valve is the core control part of servo mechanism, for controlling hydraulic servo cylinder or servo motor with signal magnitude
Linear convergent rate, the stability of servo valve are the important leverages to product stability, and existing servo valve is all made of automatically controlled form, does not have
There is manually or mechanically operating mechanism, in the case where system cut-off, servo valve will be unable to control, and cause product stability poor.
Utility model content
The purpose of this utility model is to provide a kind of dual input servo valves, to solve skill mentioned above in the background art
Art problem.
In order to solve the above technical problems, the utility model provides the following technical solutions: a kind of dual input servo valve, including valve
Body, torque-motor, the both ends of the valve body are provided with left end cap and right end cap, are provided in the left end cap and right end cap stifled
Head is provided with protective shell on the outside of the left end cap, and core assembly is equipped in the valve body, and the upper end connection of the valve body is strong
Square motor, the outside of the torque-motor are equipped with the upper cover for protecting torque-motor, and the right end of the upper cover is equipped with transition block,
The transition block right end is equipped with connector assembly, and recipient and jet nozzle, the jet stream spray are equipped between the valve body and torque-motor
Mouth is located at the upper end of receiver, is connected with ball-head tension rod on the outside of the right end cap.
Preferably, the core assembly includes valve pocket, and the valve is set in valve body；Spool, the spool setting exist
Valve pocket type is intracavitary, and the two sides of the spool are provided with spring base, and centralizing spring is provided in the spring base, the spring base
Side is provided with thimble.
Preferably, mandril is provided in the right end cap.
Preferably, the ball-head tension rod is fixedly connected by bolt with valve body right end cap, the activity in the ball-head tension rod
Bar can be mobile with movable valve plug.
Preferably, the dirt-proof boot for protecting ball-head tension rod is provided on the outside of the ball-head tension rod.
Preferably, oil inlet and oil outlet are provided on the valve shell.
Preferably, the centralizing spring is two and about valve body central symmetry.
Compared with prior art, the utility model has the beneficial effects that the utility model is scientific and reasonable for structure, in torque horse
It up to being provided with jet nozzle and recipient between valve body, is displaced by baffle and changes control chamber pressure difference, slide valve is by control chamber pressure difference
It is changed into output control flow and pressure, improves precision and stability；In addition, the utility model is set in the right end cap of valve body
Be equipped with ball-head tension rod, in the case where system energization can the first outer active force of pilot force feedback and ball-head tension rod comprehensive function
Lower work can also depend merely on the outer active force work of ball-head tension rod, avoid system and break suddenly in the case where system powers off suddenly
The case where electricity, servo valve is unable to control, improves the stability of product.
Detailed description of the invention
Fig. 1 is dual input servo valve structural schematic diagram.
In figure: 1- shell；2- left end cap；3- plug；4- valve pocket；5- thimble；6- spring base；7- centralizing spring；8- receives
Device；9- jet nozzle；10- torque-motor；11- upper cover；12- spool；13- right end cap；14- transition block；15- mandril；16- bulb
Pull rod；17- dirt-proof boot.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, following examples provided by the utility model: a kind of dual input servo valve, including valve body, torque horse
Up to 10, the both ends of valve body are provided with the left end cap 2 and right end cap 13 to sealed valve body, are set in left end cap 2 and right end cap 13
Be equipped with plug 3, the outside of left end cap 2 is provided with the protective shell to protect valve body, be equipped with core assembly in valve body, valve body it is upper
End is connected with torque-motor 10, and to provide power for valve body, the outside of torque-motor 10 is equipped with for protecting torque-motor
Upper cover 11 is equipped with transition block 14 in the right end of upper cover 11, and 14 right end of transition block is equipped with connector assembly, is powered to connect power supply,
Recipient 8 and jet nozzle 9 are equipped between valve body and torque-motor 10, jet nozzle 9 is located at the upper end of receiver 8, can pass through power
Square motor 10 turn the current into jet nozzle 9 displacement, receiver 8 by 9 displacive transformation of jet nozzle at control chamber pressure difference, on the right side
The outside of end cap 13 is connected with ball-head tension rod 16, can generate an outer active force by ball-head tension rod 16, will be controlled by slide valve
Chamber pressure difference processed and the transformation of outer active force are enlarged into output control flow and pressure.
Further, core assembly includes valve pocket 4, and valve pocket 4 is arranged in valve body；Spool 12, spool 12 are arranged in valve pocket 4
Type is intracavitary, and spool 12 is connected by valve pocket 4 with valve body, and the two sides of spool 12 are provided with spring base 6, is provided in spring base 6 pair
Middle spring 7, the side of spring base 6 are provided with thimble 5.
Further, mandril 15 is provided in right end cap 13.
Further, ball-head tension rod 16 is fixedly connected by bolt with valve body right end cap 13, the activity in ball-head tension rod 16
Bar can be mobile with movable valve plug 12.
Further, the outside of ball-head tension rod 16 is provided with the dirt-proof boot 17 for protecting ball-head tension rod 16.
Further, oil inlet and oil outlet are provided on valve shell 1.
Further, centralizing spring 7 is two and about valve body central symmetry.
Working principle: being powered on by connector assembly first, and electric current is transformed into jet nozzle displacement by torque-motor,
The recipient being then within below jet nozzle, can be by jet nozzle displacive transformation at the pressure difference of control chamber, while ball-head tension rod
The valve body slide valve that can also be driven is moved, and the transformation of the outer active force of control chamber pressure difference and ball-head tension rod is enlarged into output by slide valve
Flow and pressure are controlled, the control flow and pressure and the current value of input of valve output are corresponding in direct ratio one by one；In system cut-off
Case of emergency under, the effect of ball-head tension rod can also be relied solely on, and then drive valve core movement, slide valve equally can be by ball-head tension rod
The transformation of outer active force zoom into output control flow and pressure, avoid system and power off suddenly, the uncontrollable feelings of servo valve
Condition improves the stability of product.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (7)
1. a kind of dual input servo valve, including valve body, torque-motor (10), the both ends of the valve body be provided with left end cap (2) and
It is provided with plug (3) in right end cap (13), the left end cap (2) and right end cap (13), is provided on the outside of the left end cap (2)
Protective shell, the valve body is interior to be equipped with core assembly, and the upper end of the valve body is connected with torque-motor (10), the torque-motor
(10) outside is equipped with the upper cover (11) for protecting torque-motor (10), and the right end of the upper cover (11) is equipped with transition block
(14), transition block (14) right end is equipped with connector assembly, it is characterised in that: is equipped with and receives between the valve body and torque-motor (10)
Device (8) and jet nozzle (9), the jet nozzle (9) are located at the upper end of receiver (8), connect on the outside of the right end cap (13)
It connects and is provided with ball-head tension rod (16).
2. a kind of dual input servo valve according to claim 1, it is characterised in that: the core assembly includes valve pocket (4),
The valve pocket (4) is arranged in valve body；, the spool (12) intracavitary in valve pocket (4) type is arranged in spool (12), the spool (12)
Two sides be provided with spring base (6), is provided with centralizing spring (7) in the spring base (6), the side of the spring base (6) is set
It is equipped with thimble (5).
3. a kind of dual input servo valve according to claim 1, it is characterised in that: be provided with top in the right end cap (13)
Bar (15).
4. a kind of dual input servo valve according to claim 1 or 2 or 3, it is characterised in that: the ball-head tension rod (16) is logical
It crosses bolt to be fixedly connected with valve body right end cap (13), the motion bar in the ball-head tension rod (16) can be mobile with movable valve plug (12).
5. a kind of dual input servo valve according to claim 1, it is characterised in that: set on the outside of the ball-head tension rod (16)
It is equipped with the dirt-proof boot (17) for protecting ball-head tension rod (16).
6. a kind of dual input servo valve according to claim 1, it is characterised in that: be provided on the valve shell (1)
Oil inlet and oil outlet.
7. a kind of dual input servo valve according to claim 2, it is characterised in that: the centralizing spring (7) be two and
About valve body central symmetry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820590794.5U CN208294865U (en) | 2018-04-24 | 2018-04-24 | A kind of dual input servo valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820590794.5U CN208294865U (en) | 2018-04-24 | 2018-04-24 | A kind of dual input servo valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208294865U true CN208294865U (en) | 2018-12-28 |
Family
ID=64725603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820590794.5U Expired - Fee Related CN208294865U (en) | 2018-04-24 | 2018-04-24 | A kind of dual input servo valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208294865U (en) |
Cited By (2)
| 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 |
| CN115306786A (en) * | 2022-09-29 | 2022-11-08 | 烟台中宇航空液压有限公司 | Electro-hydraulic servo valve |
-
2018
- 2018-04-24 CN CN201820590794.5U patent/CN208294865U/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| CN115306786A (en) * | 2022-09-29 | 2022-11-08 | 烟台中宇航空液压有限公司 | Electro-hydraulic servo valve |
| CN115306786B (en) * | 2022-09-29 | 2022-12-23 | 烟台中宇航空液压有限公司 | Electro-hydraulic servo valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208294865U (en) | A kind of dual input servo valve | |
| CN104712823B (en) | Electromagnetic actuator device for solenoid valve | |
| CN104197046B (en) | A kind of banked direction control valves of band off-load protection | |
| CN103032613B (en) | High-and-small flow classifying throttling mechanism capable of changing flow resistance within large range | |
| CN206503992U (en) | A kind of cut-off type two-position three-way valve | |
| CN206036363U (en) | Collection superpressure cut off with valve after voltage stabilizing function voltage regulator as an organic whole | |
| CN103775438B (en) | Overload protection valve and the overload valve containing overload protection valve | |
| CN202732523U (en) | Pilot valve for loading machine | |
| CN206582379U (en) | A kind of magnetic valve controlled based on Internet of Things | |
| CN205207817U (en) | Case steady voltage gas pressure regulator | |
| CN204083373U (en) | A kind of multi-way valve with off-load protection | |
| CN201823208U (en) | Novel fire water monitor nozzle | |
| CN204511834U (en) | A kind of glaze spraying machine diaphragm pump | |
| CN204127327U (en) | The hydraulic pressure large discharge high-speed figure valve that solenoid valve is mid- | |
| CN208294863U (en) | A kind of double feedback pressure valves | |
| CN107617519A (en) | Electromagnetism nozzle is used in the spraying of pulsed mould release | |
| CN209781317U (en) | Oil way of silica gel feeding hydraulic system | |
| CN206487923U (en) | Lever pressure difference safety regulating valve | |
| CN107363239B (en) | Quick injection stop mechanism of magnesium alloy cold chamber die casting machine | |
| CN106347136B (en) | A kind of pantograph control system | |
| CN203441716U (en) | Device applied in control of axial plunger pump negative flow and total power | |
| CN201504104U (en) | Parallel controllable reactor of ultra-high-voltage line | |
| CN205639143U (en) | Control hydraulic electro -hydraulic reversing valve | |
| CN203463762U (en) | Pilot electromagnetic head | |
| CN104061143A (en) | Negative flow and total power control system applied to axial piston pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181228 Termination date: 20200424 |