CN209340250U - A kind of outer zero setting structure of servo valve - Google Patents
A kind of outer zero setting structure of servo valve Download PDFInfo
- Publication number
- CN209340250U CN209340250U CN201822071192.1U CN201822071192U CN209340250U CN 209340250 U CN209340250 U CN 209340250U CN 201822071192 U CN201822071192 U CN 201822071192U CN 209340250 U CN209340250 U CN 209340250U
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- rod
- zero
- servo valve
- torque
- upper cover
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Abstract
The utility model belongs to technical field of hydraulic pressure, it is related to a kind of outer zero setting structure of servo valve, including adjusting zero rod (1), upper cover (2), elastic rod (3), torque-motor (4), it is characterized in that: adjusting zero rod (1) is threaded into upper cover (2), elastic rod (3) one end is fixed in torque-motor (4), and elastic rod (3) bead end is inserted into adjusting zero rod (1) annular groove.The utility model is structurally simple, economical, easy to use.
Description
Technical field
The utility model belongs to technical field of hydraulic pressure, is related to a kind of outer zero setting structure of servo valve.
Background technique
Servo valve is widely used in the industrial circles such as Aeronautics and Astronautics, petroleum, chemical industry, the overproof problem of the zero bias of servo valve
It is generally existing, it is the hard nut to crack of Hydraulic Industry, is sent out in particular with Hydraulic Field towards the direction of high temperature, high pressure, high speed
The armature component of exhibition, servo valve pressing or welding position loosens, built-in oily filter is contaminated object blocking, the nozzle of pressing loosens, spray
Mouth can all be caused the zero drift of electrohydraulic servo valve by dirt blocking etc., electrohydraulic servo valve can only be sent to factory repair at this time,
It is not only costly, have an effect on production.Therefore, it is necessary to a kind of outer zero setting structure of servo valve is provided, it can be light in use site
Adjusting servo valve zero bias, the deviation of servo valve is corrected, so that servo-system be made to meet requirement.
Summary of the invention
The purpose of this utility model: a kind of outer zero setting structure of servo valve is provided, can easily adjust and watch in use site
Valve zero bias are taken, the deviation of servo valve is corrected, so that servo-system be made to meet requirement.
The technical solution of the utility model includes: a kind of outer zero setting structure of servo valve, including upper cover 2, torque-motor 4, torque horse
Up to 4 inside upper cover 2, it is characterized in that: increase adjusting zero rod 1, in the torque in the upper surface of electrical connector hole of the upper cover 2
The upper end of motor 4 increases elastic rod 3, and 3 one end of elastic rod is inserted in the annular groove of 1 one end of adjusting zero rod, it is characterized in that: adjusting zero rod 1
It is equipped with screw thread, and is threaded into upper cover 2,3 other end of elastic rod is fixed in torque-motor 4,3 bead end of elastic rod
It is inserted into 1 annular groove of adjusting zero rod.
One end that the elastic rod 3 is inserted into the annular groove of adjusting zero rod 1 is small spherical structure.
The roughness of 1 annular groove of adjusting zero rod is
The other end of the adjusting zero rod 1 is provided with flat recess.
The utility model has the beneficial effects that increasing adjusting zero rod 1 in the upper surface of electrical connector hole of upper cover 2, in the torque
The upper end of motor 4 increases elastic rod 3, and 3 one end of elastic rod is inserted in the annular groove of 1 one end of adjusting zero rod, is inserted into and is returned to zero with screwdriver
Rotation adjusting zero rod 1 is adjusted in 1 flat recess of bar, adjusting zero rod 1 rotates in 2 threaded hole of upper cover, and helicitic texture is by the rotation of adjusting zero rod 1
Movement switchs to move along a straight line, and stirs the bead side-to-side movement of the elastic rod 3 of the annular groove of insertion adjusting zero rod 1, elastic rod 3 is caused to occur
Bending deformation provides external torque for torque-motor 4, so as to easily adjust the zero bias of servo valve.
Detailed description of the invention
Fig. 1 is the utility model structure diagram.
In figure: 1 being adjusting zero rod, 2 be upper cover, 3 be elastic rod, 4 be torque-motor.
Specific embodiment
The utility model is described in more detail with reference to the accompanying drawing, as follows referring to attached drawing 1:
A kind of outer zero setting structure of servo valve, including upper cover 2, torque-motor 4, torque-motor 4 are special inside upper cover 2
Sign are as follows: increase adjusting zero rod 1, in the upper end of the torque-motor 4 increase elastic rod in the upper surface of electrical connector hole of the upper cover 2
3,3 one end of elastic rod is inserted in the annular groove of 1 one end of adjusting zero rod, it is characterized in that: adjusting zero rod 1 is equipped with screw thread, and passes through screw thread
It is screwed into upper cover 2,3 other end of elastic rod is fixed in torque-motor 4, and 3 bead end of elastic rod is inserted into 1 annular groove of adjusting zero rod.
One end that the elastic rod 3 is inserted into the annular groove of adjusting zero rod 1 is small spherical structure.
The roughness of 1 annular groove of adjusting zero rod is
The other end of the adjusting zero rod 1 is provided with flat recess, it is therefore an objective to is inserted into 1 flat recess of adjusting zero rod and be adjusted with screwdriver
The zero bias of servo valve.
With rotation adjusting zero rod 1 is adjusted in screwdriver insertion 1 flat recess of adjusting zero rod, adjusting zero rod 1 is in 2 threaded hole inward turning of upper cover
Turn, the rotary motion of adjusting zero rod 1 is switched to move along a straight line by helicitic texture, stirs the small of the elastic rod 3 of the annular groove of insertion adjusting zero rod 1
Ball side-to-side movement causes elastic rod 3 to occur bending and deformation, and external torque is provided for torque-motor 4, so as to easily adjust
The zero bias of servo valve.
Claims (4)
1. a kind of outer zero setting structure of servo valve, including upper cover (2), torque-motor (4), torque-motor (4) is in upper cover (2)
Portion, it is characterized in that: increase adjusting zero rod (1), in the torque-motor (4) in the upper surface of electrical connector hole of the upper cover (2)
Upper end increases elastic rod (3), and elastic rod (3) one end is inserted in the annular groove of adjusting zero rod (1) one end, it is characterized in that: adjusting zero rod (1)
It is equipped with screw thread, and is threaded into upper cover (2), elastic rod (3) other end is fixed in torque-motor (4), elastic rod
(3) in bead end insertion adjusting zero rod (1) annular groove.
2. a kind of outer zero setting structure of servo valve according to claim 1, it is characterized in that: the elastic rod (3), which is inserted into, to be adjusted
One end of the annular groove of zero bar (1) is small spherical structure.
3. a kind of outer zero setting structure of servo valve according to claim 1, it is characterized in that: described adjusting zero rod (1) annular groove
Roughness be
4. a kind of outer zero setting structure of servo valve according to claim 1, it is characterized in that: the adjusting zero rod (1) it is another
End is provided with flat recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822071192.1U CN209340250U (en) | 2018-12-11 | 2018-12-11 | A kind of outer zero setting structure of servo valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822071192.1U CN209340250U (en) | 2018-12-11 | 2018-12-11 | A kind of outer zero setting structure of servo valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209340250U true CN209340250U (en) | 2019-09-03 |
Family
ID=67756536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822071192.1U Active CN209340250U (en) | 2018-12-11 | 2018-12-11 | A kind of outer zero setting structure of servo valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209340250U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156212A (en) * | 2019-12-24 | 2020-05-15 | 中航工业南京伺服控制系统有限公司 | Single-stage spraying gear external zero-setting cartridge servo valve |
-
2018
- 2018-12-11 CN CN201822071192.1U patent/CN209340250U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156212A (en) * | 2019-12-24 | 2020-05-15 | 中航工业南京伺服控制系统有限公司 | Single-stage spraying gear external zero-setting cartridge servo valve |
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| GR01 | Patent grant |