CN207349432U - A kind of sealing device for rotary shaft - Google Patents
A kind of sealing device for rotary shaft Download PDFInfo
- Publication number
- CN207349432U CN207349432U CN201721101386.0U CN201721101386U CN207349432U CN 207349432 U CN207349432 U CN 207349432U CN 201721101386 U CN201721101386 U CN 201721101386U CN 207349432 U CN207349432 U CN 207349432U
- Authority
- CN
- China
- Prior art keywords
- seal
- rotation axis
- housing
- sealing device
- rotary shaft
- 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
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- Sealing Devices (AREA)
Abstract
A kind of sealing device for rotary shaft, including housing and rotation axis, one end installation of the rotation axis is inside housings, seal is equipped between the rotation axis and housing, and seal is zigzag shape between rotation axis and housing, the helix hand of spiral of the seal is opposite with the direction of rotation of rotation axis.Advantage is：It is cheap, long lifespan, and easily installation is replaced.
Description
Technical field
A kind of sealing device is the utility model is related to, relates in particular to a kind of sealing device for rotary shaft.
Background technology
The oil sealing that slewing outputs and inputs axis is unreliable, short life, is always insoluble one of the kind equipment
Problem.Particularly in a large amount of home equipments, because cost and original design problem, sealing structure is relatively easy, uses oil sealing
Sealed with felts, and oil sealing and felt are easy to wear（Particularly in the environment for having dust and debris）, also easily cause axis
The permanent damage in face, repair to shut down every time for a long time, and shaft end connector is removed, very troublesome.Existing labyrinth is close
Envelope and other combination sealings, cost is higher, design it is complex, and because of machining accuracy problem and when often result in seal failure.
Utility model content
The utility model lies in that it is directed to above-mentioned deficiency, there is provided a kind of rotation axis seal that can easily install replacement
Device.
In order to achieve the above object, the utility model is achieved through the following technical solutions：
A kind of sealing device for rotary shaft, including housing and rotation axis, one end of the rotation axis are installed inside housings,
Seal is equipped between the rotation axis and housing, and seal is zigzag shape between rotation axis and housing, it is described
The helix hand of spiral of seal is opposite with the direction of rotation of rotation axis.
Further, the seal is rubber seal.
Further, it is equipped with trip bolt outside the seal, trip bolt has multiple, and multiple trip bolts are equal
It is even to be distributed on housing.
Compared with prior art, the beneficial point of the utility model is：
1st, easily installation is replaced, and without removing shaft end component, fully achieves online replacement seal；
2nd, various environment are adapted to, no matter which kind of liquid is equipment cavity be or whether have pressure（Excess pressure does not apply to）, outside
Whether portion's environment has dust and material, or whether axial plane has damage, can accomplish reliably to seal；
3rd, long lifespan, using micro- contact rubber seal, if without particularly wearing, can accomplish making for ageing of rubber
Use the service life；
4th, cheap, seal uses common oil resistant rubber, and in the market can arbitrarily be bought；
Existing equipment transform especially advantageous, without big variation, the sealing of all rotation axis classes can transform.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
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 embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, any modification, equivalent replacement, improvement and so on, should be included in the utility model
Within protection domain.
In the description of the utility model, it is necessary to explanation, term " upside ", " downside ", " both sides ", " left side ",
The orientation or position relationship of the instruction such as " right side ", " vertical ", " level ", " interior ", " outer " are based on orientation shown in the drawings or position
Relation, is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must have
There is specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " the
One ", " second ", " the 3rd " are only used for description purpose, and it is not intended that instruction or hint relative importance.
A kind of sealing device for rotary shaft as shown in Figure 1, including housing 2 and rotation axis 1, one end of the rotation axis 1
Inside housing 2, seal 3 is equipped between the rotation axis 1 and housing 2, the seal 3 is rubber seal
Part, and seal 3 is zigzag shape between rotation axis 1 and housing 2, the helix hand of spiral of the seal 3 is with revolving
On the contrary, the outside of seal 3 is equipped with trip bolt 4, trip bolt 4 has multiple, and multiple fastenings for the direction of rotation of shaft 1
Screw 4 is evenly distributed on housing 2.
The operation principle of the present apparatus is to form helix together, rotation direction between housing 2 and rotation axis 1 using seal 3
Steering with rotation axis 1 is on the contrary, the viscosity all having using the liquid medium sealed, the meeting band when rotation axis 1 rotates at a high speed
Dynamic medium is to moving inside apparatus casing 2, and the rotating speed of rotation axis 1 is higher, and the trend that medium inwardly moves is more obvious, is formed
Static pressure it is also bigger, therefore also be adapted for the occasion for having certain pressure inside equipment.
Seal 3 uses rubber material, and abrasion resistance is excellent, and elasticity is good, and the contact with rotation axis is in boundary friction shape
State, so abrasion is smaller, even if axial plane is uneven, has groove or small pit-hole all not to have much affect to sealing effect.
Claims (3)
1. a kind of sealing device for rotary shaft, including housing and rotation axis, one end of the rotation axis is installed inside housings, its
It is characterized in that：Seal is equipped between the rotation axis and housing, and seal is helix between rotation axis and housing
Shape, the helix hand of spiral of the seal are opposite with the direction of rotation of rotation axis.
A kind of 2. sealing device for rotary shaft according to claim 1, it is characterised in that：The seal is rubber seal
Part.
A kind of 3. sealing device for rotary shaft according to claim 1, it is characterised in that：It is equipped with outside the seal tight
Gu screw, trip bolt have multiple, and multiple trip bolts are evenly distributed on housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721101386.0U CN207349432U (en) | 2017-08-31 | 2017-08-31 | A kind of sealing device for rotary shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721101386.0U CN207349432U (en) | 2017-08-31 | 2017-08-31 | A kind of sealing device for rotary shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207349432U true CN207349432U (en) | 2018-05-11 |
Family
ID=62413017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721101386.0U Expired - Fee Related CN207349432U (en) | 2017-08-31 | 2017-08-31 | A kind of sealing device for rotary shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207349432U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469714A (en) * | 2019-09-01 | 2019-11-19 | 永嘉企达知识产权咨询有限公司 | A kind of on-line maintenance gate valve |
-
2017
- 2017-08-31 CN CN201721101386.0U patent/CN207349432U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469714A (en) * | 2019-09-01 | 2019-11-19 | 永嘉企达知识产权咨询有限公司 | A kind of on-line maintenance gate valve |
| CN110469714B (en) * | 2019-09-01 | 2020-12-01 | 浙江慧博阀门科技有限公司 | Online maintenance gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |