CN209084111U - A kind of valve stem spacing anti-rotational structure - Google Patents
A kind of valve stem spacing anti-rotational structure Download PDFInfo
- Publication number
- CN209084111U CN209084111U CN201821903173.4U CN201821903173U CN209084111U CN 209084111 U CN209084111 U CN 209084111U CN 201821903173 U CN201821903173 U CN 201821903173U CN 209084111 U CN209084111 U CN 209084111U
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- China
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- valve rod
- limiting slot
- valve
- limited block
- deep gouge
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Abstract
The utility model announces a kind of valve stem spacing anti-rotational structure, belongs to hydraulic valve technology.Including valve body and the valve rod being mounted on valve body；The valve rod outer end is covered with an end cap；Multistage limiting slot is provided on the periphery of valve rod outer end, multistage limiting slot direction is axially parallel with valve rod；The adjusting screw opposite with multistage limiting slot is installed on the end cap, the inner end for adjusting screw is fixedly connected with limited block；The limited block is slidably mounted in multistage limiting slot.By adjusting the adjustable limited block position of screw in the utility model, the limited block deep gouge cooperation different from valve stem end multistage limiting slot limits the axial position range of valve rod, plays the role of limited flow rate adjustable extent.The symmetric design of multistage limiting slot can carry out valve rod bidirectionally limited.The utility model structure is simple, at low cost, not only can convenient regulating valve stem moving range, while can prevent valve rod during the work time because of rotation caused by hydraulic coupling.
Description
Technical field
The utility model relates to hydraulic valve technology, specifically a kind of valve stem spacing anti-rotational structure.
Background technique
Valve rod is the important component of hydraulic valve, is cooperated with the spool bore of valve body, by adjusting valve rod in spool bore
The uninterrupted for adjusting hydraulic valve difference hydraulic path is realized in position, finally controls different executing agency's realization movements, especially
It is engineering machinery large-tonnage, super-tonnage hydraulic system and high flow capacity industrial hydraulic system, stability and flow essence to liquid stream
Degree has higher requirement.But high pressure, the liquid stream of big flow hydraulic power generated are to position of the valve rod in spool bore and valve
The stability of bar state can all generate unfavorable factor.
Because of high pressure, the influence of big flow hydraulic power, lead to the unstable of position and state of the valve rod in spool bore, thus
So that the area of valve rod opening throttling channel is changed, and then causes the liquid stream for crossing pasta product by throttling channel with the variation of valve rod
Variation.
Summary of the invention
In order to solve the above technical problems, the utility model provides a kind of valve stem spacing anti-rotational structure, which is suitable for
High pressure, high-volume hydraulic valve carry out limited flow rate adjustable range by the axial position range of regulating valve stem.
The utility model is achieved through the following technical solutions: a kind of valve stem spacing anti-rotational structure, including valve body and installation
Valve rod on valve body；The valve rod outer end is covered with an end cap；Multistage limiting slot is provided on the periphery of valve rod outer end, it is multistage
Limiting slot direction is axially parallel with valve rod；The adjusting screw opposite with multistage limiting slot is installed on the end cap, adjusts spiral shell
The inner end of nail is fixedly connected with limited block；The limited block is slidably mounted in multistage limiting slot.
It is further: the multistage limiting slot includes first order deep gouge, and it is heavy to be provided with the second level in first order deep gouge bottom
Slot；The second level deep gouge and first order deep gouge are wide, and second level deep gouge length is less than first order deep gouge.
The end cap includes a cylindrical section, and the right end of cylinder is fixedly connected with ring flange, and the left end of cylinder is fixedly connected with half
Spherical shell；The threaded hole opposite with multistage limiting slot is provided on the cylinder, the adjusting screw is mounted on the screw thread
Kong Zhong；The ring flange is fixedly connected on valve body.
There are gaps between the valve rod and cylinder.
The limited block is in the form of annular discs, and limited block center is provided with tapped blind hole, and the inner end for adjusting screw is mounted on limit
In the tapped blind hole at position block center.
By adjusting the adjustable limited block position of screw, limited block and valve stem end multistage limiting slot in the utility model
Middle different deep gouge cooperation, limits the axial position range of valve rod, plays the role of limited flow rate adjustable extent.Multistage limit
The symmetric design of slot, can be bidirectionally limited to valve rod progress, since every grade of deep gouge is all the rectangle structure of both ends circular arc, limited block
Cooperation with limiting slot can prevent the rotation of valve rod at work simultaneously.
Compared with prior art, the utility model has the beneficial effects that structure is simple, and it is at low cost, not only can easily it adjust
The moving range of valve rod is saved, while can prevent valve rod during the work time because of rotation caused by hydraulic coupling.
Detailed description of the invention
Fig. 1 is the utility model structure diagram；
In figure: 1, valve rod；1-1, multistage limiting slot；2, end cap；2-1, hemispherical shell；2-2, cylinder；2-3, ring flange；
3, screw is adjusted；4, limited block.
Specific embodiment
It is a specific embodiment of the utility model below, the utility model is described further now in conjunction with attached drawing.
As shown in connection with fig. 1, a kind of valve stem spacing anti-rotational structure, including valve body and the valve rod 1 being mounted on valve body.Valve rod
1 outer end is covered with an end cap 2；End cap 2 includes a cylindrical section 2-2, and the right end of cylinder 2-2 is fixedly connected with ring flange 2-3, cylinder
The left end of 2-2 is fixedly connected with hemispherical shell 2-1；Ring flange 2-3 is fixedly connected on valve body.It is stayed between valve rod 1 and cylinder 2-2
There is gap.
Multistage limiting slot 1-1 is provided on the periphery of 1 outer end of valve rod, the direction multistage limiting slot 1-1 and valve rod 1 are axial flat
Row.Multistage limiting slot 1-1 uses two-stage, including first order deep gouge in the present embodiment, is provided with the second level in first order deep gouge bottom
Deep gouge；Second level deep gouge and first order deep gouge are wide, and second level deep gouge length is less than first order deep gouge.
It is provided with the threaded hole opposite with multistage limiting slot 1-1 on cylinder 2-2, adjusts screw 3 and is mounted in threaded hole.Limit
Position block 4 is in the form of annular discs, and 4 center of limited block is provided with tapped blind hole, and the inner end for adjusting screw 3 is mounted on the screw thread at 4 center of limited block
In blind hole.Limited block 4 is slidably mounted in multistage limiting slot 1-1 in first order deep gouge or second level deep gouge.
When assembly:
Screw will be adjusted to be mounted on end cap, then limited block is tightened on to the inner end for adjusting screw；
By end cap cover in valve rod outer end, and it is located at limited block in the multistage limiting slot of valve stem end；Limit the axis of valve rod
While to moving range, the rotation of valve rod can also be limited；
Then, end cap is fixedly connected on valve by ring flange；
Finally, adjusting limited block in first order deep gouge in multistage limiting slot or second level deep gouge by adjusting screw；
Cooperate deep gouge not at the same level in limited block and multistage limiting slot, thus it is possible to vary the shaft orientation moving range of valve rod.
It is simple that above-described embodiment can be seen that the utility model structure, at low cost, has the function of classification adjustment, not only
Can convenient regulating valve stem moving range, while can prevent valve rod during the work time because of rotation caused by hydraulic coupling.
Claims (5)
1. a kind of valve stem spacing anti-rotational structure, including valve body and the valve rod (1) being mounted on valve body；It is characterized by: described
Valve rod (1) outer end is covered with an end cap (2)；It is provided with multistage limiting slot (1-1) on the periphery of valve rod (1) outer end, multistage limit
The slot direction (1-1) is axial parallel with valve rod (1)；The adjusting opposite with multistage limiting slot (1-1) is installed on the end cap (2)
Screw (3), the inner end for adjusting screw (3) are fixedly connected with limited block (4)；The limited block (4) is slidably mounted on multistage limit
In slot (1-1).
2. a kind of valve stem spacing anti-rotational structure according to claim 1, it is characterised in that: the multistage limiting slot (1-
1) include first order deep gouge, be provided with second level deep gouge in first order deep gouge bottom；The second level deep gouge and first order deep gouge etc.
Width, second level deep gouge length are less than first order deep gouge.
3. a kind of valve stem spacing anti-rotational structure according to claim 1, it is characterised in that: the end cap (2) includes one
Cylindrical section (2-2), the right end of cylinder (2-2) are fixedly connected with ring flange (2-3), and the left end of cylinder (2-2) is fixedly connected with hemisphere
Shape shell (2-1)；The threaded hole opposite with multistage limiting slot (1-1), the adjusting screw are provided on the cylinder (2-2)
(3) it is mounted in the threaded hole；The ring flange (2-3) is fixedly connected on valve body.
4. a kind of valve stem spacing anti-rotational structure according to claim 3, it is characterised in that: the valve rod (1) and cylinder
There are gaps between (2-2).
5. a kind of valve stem spacing anti-rotational structure according to claim 1, it is characterised in that: the limited block (4) is in circle
Plate-like, limited block (4) center are provided with tapped blind hole, and the inner end for adjusting screw (3) is mounted on the screw thread at limited block (4) center
In blind hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821903173.4U CN209084111U (en) | 2018-11-19 | 2018-11-19 | A kind of valve stem spacing anti-rotational structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821903173.4U CN209084111U (en) | 2018-11-19 | 2018-11-19 | A kind of valve stem spacing anti-rotational structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209084111U true CN209084111U (en) | 2019-07-09 |
Family
ID=67124601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821903173.4U Active CN209084111U (en) | 2018-11-19 | 2018-11-19 | A kind of valve stem spacing anti-rotational structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209084111U (en) |
-
2018
- 2018-11-19 CN CN201821903173.4U patent/CN209084111U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210428 Address after: 221004 No. 18, Peach Road, Xuzhou economic and Technological Development Zone, Jiangsu, Xuzhou Patentee after: Xuzhou Amakai Hydraulic Technology Co.,Ltd. Address before: 221004 No. 18, Peach Road, Jinshan Development Zone, Xuzhou, Jiangsu Patentee before: XCMG XUZHOU XUGONG HYDRAULIC PARTS Co.,Ltd. |
|
| TR01 | Transfer of patent right |