CN205937279U - Gear engagement formula hydrovalve valve barrel locking structure - Google Patents
Gear engagement formula hydrovalve valve barrel locking structure Download PDFInfo
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- CN205937279U CN205937279U CN201620706053.XU CN201620706053U CN205937279U CN 205937279 U CN205937279 U CN 205937279U CN 201620706053 U CN201620706053 U CN 201620706053U CN 205937279 U CN205937279 U CN 205937279U
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- clamp ring
- valve body
- valve
- gear
- end cap
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Abstract
The utility model relates to a gear engagement formula hydrovalve valve barrel locking structure, including valve body, clamp ring and end cover, valve body both ends installation clamp ring and end cover, the clamp ring passes through the threaded connection valve body, the end cover passes through fastener and valve body fixed connection, through the position of inner gear and the outer gear interlock locking clamp ring, it is not hard up to prevent the clamp ring between clamp ring and the end cover. The mode of servovalve valve barrel locking can effectively be improved to this structure, prevents to become invalid because of valve body, the different lockings that lead to of valve barrel material swelling system to produce the clamp ring pine and move back the phenomenon under the vibration condition, improve the stability and the reliability of product.
Description
Technical field
This utility model is related to a kind of gear-engaged type hydraulic valve, especially a kind of gear-engaged type hydraulic valve valve pocket locking
Structure.
Background technology
The assembling structure of existing electrohydraulic servo valve power-amplifier stage, as shown in Figure 1.Mainly by valve body, valve pocket, acceptance
Device, left clamp ring, right clamp ring composition.Accepter is press-fitted on valve pocket, left clamp ring 3, the external screw thread of right clamp ring 4（See figure
2,3）Coordinated with the female thread of valve body 2, by and applying to screw thread in valve body 2 to left clamp ring 3, right clamp ring 4
Certain screw-down torque valve pocket-accepter is fixed, and by adjusting left clamp ring 3, the relative position of right clamp ring 4
Realize being accurately positioned of valve pocket 1 and accepter 8.
This structure has the disadvantage that：In Special use occasion, there is larger restriction to product weight and volume, valve body is general
Using aluminum alloy materials, valve pocket, accepter, left and right clamp ring adopt stainless steel material.Material expand coefficient due to aluminum and steel
Different, under the high temperature-vibration integrated environmental condition of high intensity, it is possible that screw-down torque reduces, clamp ring pine moves back
Phenomenon, the stability of impact servo valve zero-bit.
Content of the invention
This utility model is to provide a kind of gear-engaged type hydraulic valve valve pocket locking mechanism, and this structure can be effectively improved servo
The mode of valve valve pocket locking, prevents because of valve body, valve pocket material expand system is different and the locking that leads to was lost efficacy, and in vibration condition
Lower generation clamp ring pine moves back phenomenon, improves stability and the reliability of product.
For achieving the above object, the technical solution of the utility model is：A kind of gear-engaged type hydraulic valve valve pocket locking knot
Structure, including valve body, clamp ring and end cap, described valve body two ends installation locking circle and end cap, described clamp ring is threaded connection
Valve body, described end cap is fixedly connected with the valve body by securing member；Pass through internal-external gear occlusion lock between described clamp ring and end cap
The position of lock collar, prevents clamp ring and loosens.
Described clamp ring one end is cylindrical to be provided with external gear, and the other end is cylindrical to be provided with external screw thread.Described valve body two ends set
There is female thread.It is provided with internal gear, end face outside is provided with connecting hole in endoporus inside described end cap.
The beneficial effects of the utility model are：
Clamp ring structure is designed to the external gear that one end is that external screw thread, the other end are certain precision by this utility model；Valve
Body adopts female thread, matches with clamp ring one end external screw thread, by applying the carrying out valve pocket-accepter of certain screw-down torque
Fixing；End cap local adopts the internal gear of certain precision, matches with the external gear of clamp ring, and is installed using screw connecting mode
It is fixed on valve body, by the position of internal-external gear snap-lock clamp ring, prevent clamp ring and loosen.
This utility model carries out internal-external gear engagement system by clamp ring and end cap and carries out the locking further of clamp ring
Control, clamp ring under the high temperature-vibration integrated environment of high intensity for the effectively solving can loosen problem, expand hydraulic valve product
The scope of application, improves zero stability and reliability.Verification experimental verification on certain type servo valve, shows the examination in high temperature, vibration
Under the conditions of testing, using the servo valve of this clamp ring, its drift value is less than the servo valve without this structure clamp ring mostly, and it is zero inclined
Value, all within 2%, meets relevant criterion and the requirement of technical protocol.
Brief description
Fig. 1 is the assembling structure schematic diagram of existing electrohydraulic servo valve power-amplifier stage；
Fig. 2 is existing clamp ring structure sectional view；
Fig. 3 is the left view of Fig. 2；
Fig. 4 is gear-engaged type hydraulic valve valve pocket locking mechanism schematic diagram of the present utility model；
Fig. 5 is clamp ring structure sectional view of the present utility model；
Fig. 6 is the left view of Fig. 5；
Fig. 7 is end cover structure sectional view of the present utility model；
Fig. 8 is the left view of Fig. 7.
Specific embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
As shown in figure 4, a kind of gear-engaged type hydraulic valve valve pocket locking mechanism, including valve pocket 1, valve body 2, left and right locking
Circle 3,4, left and right end cap 5,6, accepter 8.
Valve pocket 1 is arranged in the main aperture of valve body 2, and valve body 2 two is machined with female thread, left clamp ring）Lead to right clamp ring 4
Cross and screw in valve body 2, both relative axial position realization being accurately positioned to valve pocket 1 with valve body 2 of adjustment, and apply
Certain screw-down torque is locked.By left and right end cap 5,6 by the inner gear structure of certain precision and left and right clamp ring 3,4
The external tooth wheel construction of upper corresponding precision carries out cooperation and installs, make left and right clamp ring 3,4 respectively with left and right end cap 5, pass through between 6
Internal-external gear occlusion locks the position of left and right clamp ring 3,4 respectively, prevents clamp ring and loosens.Will finally by screw 7
Left and right end cap 5,6 is fixed on valve body 2.
As Fig. 5, shown in 6, left and right clamp ring 3,4 one end is cylindrical to be provided with external gear 9, and the other end is cylindrical to be provided with outer spiral shell
Stricture of vagina 10.
As Fig. 7, shown in 8, it is provided with internal gear 11 in left and right end cap 5,6 inner side endoporus, end face outside is provided with connecting hole
12.
Claims (4)
1. a kind of gear-engaged type hydraulic valve valve pocket locking mechanism, including valve body（2）, clamp ring and end cap, described valve body（2）Two
End installation locking circle and end cap it is characterised in that：Described clamp ring is threaded connection valve body（2）, described end cap is by fastening
Part and valve body（2）It is fixedly connected；Pass through the position of internal-external gear snap-lock clamp ring between described clamp ring and end cap, prevent
Clamp ring is occurred to loosen.
2. gear-engaged type hydraulic valve valve pocket locking mechanism according to claim 1 it is characterised in that：Described clamp ring one
End is cylindrical to be provided with external gear（9）, the other end is cylindrical to be provided with external screw thread（10）.
3. gear-engaged type hydraulic valve valve pocket locking mechanism according to claim 1 it is characterised in that：Described valve body（2）
Two ends are provided with female thread.
4. gear-engaged type hydraulic valve valve pocket locking mechanism according to claim 1 it is characterised in that：Inside described end cap
It is provided with internal gear in endoporus（11）, end face outside is provided with connecting hole（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620706053.XU CN205937279U (en) | 2016-07-06 | 2016-07-06 | Gear engagement formula hydrovalve valve barrel locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620706053.XU CN205937279U (en) | 2016-07-06 | 2016-07-06 | Gear engagement formula hydrovalve valve barrel locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205937279U true CN205937279U (en) | 2017-02-08 |
Family
ID=57928353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620706053.XU Active CN205937279U (en) | 2016-07-06 | 2016-07-06 | Gear engagement formula hydrovalve valve barrel locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205937279U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927607A (en) * | 2016-07-06 | 2016-09-07 | 上海衡拓液压控制技术有限公司 | Gear engagement type hydraulic valve pocket locking structure |
-
2016
- 2016-07-06 CN CN201620706053.XU patent/CN205937279U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927607A (en) * | 2016-07-06 | 2016-09-07 | 上海衡拓液压控制技术有限公司 | Gear engagement type hydraulic valve pocket locking structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |