CN208885965U - A kind of Assembled sealer - Google Patents
A kind of Assembled sealer Download PDFInfo
- Publication number
- CN208885965U CN208885965U CN201821419963.5U CN201821419963U CN208885965U CN 208885965 U CN208885965 U CN 208885965U CN 201821419963 U CN201821419963 U CN 201821419963U CN 208885965 U CN208885965 U CN 208885965U
- Authority
- CN
- China
- Prior art keywords
- skeleton
- annular groove
- shaft
- ring body
- inner end
- 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
The utility model provides a kind of Assembled sealer, belongs to field of mechanical technique.This Assembled sealer includes covering outside shaft and the ring body made of elastic material, there is sealing annular in shape on ring body inner sidewall, sealing inner wall offsets with shaft side wall, the skeleton made of rigid material is fixed in ring body, skeleton is in vertical bar shape and backbone length radially extending along ring body, skeleton is at least evenly distributed with there are two and along the circumferential direction of ring body, skeleton inner end extends in ring body inner cavity, the annular groove with shaft coaxial arrangement is offered on shaft side wall, annular groove includes the two sidewalls being axially distributed along shaft, it inserts in a ring groove skeleton inner end, annular groove two sidewalls are resisted against on skeleton.This Assembled sealer has the advantages that transmission accuracy can be reinforced.
Description
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of sealing element, especially a kind of Assembled sealer.
Background technique
Sealing element be prevent fluid or solia particle from leak and prevent between adjacent faying face introduced contaminants such as dust with
Moisture etc. invades the material or part of the components inside machinery equipment.
A kind of existing sealing element sealing element as disclosed in chinese patent library [application number: 200820006134.4], sealing
Part has centre bore, on one of self-sealing part axial end face, is also formed along direction axial direction and diameter far from one of sealing element end face
To the flange of extension.
Above-mentioned sealing element reaches extension by reducing the contact area between shaft, Lai Yanhuan sealing part abrasion speed
The purpose of seal life.But the sealing element still has a problem that: axis is more or less more at work to be existed centainly
Axial float aggravates the friction between flange and shaft, causes shaft by the stress on different directions, influences transmission essence
Degree.
Utility model content
The purpose of this utility model is the presence of the above problem in view of the prior art, proposes a kind of Assembled sealer,
The technical issues of solution is how to reinforce transmission accuracy.
The purpose of this utility model can be realized by the following technical scheme: a kind of Assembled sealer, including covers and turning
Axis is outer and the ring body made of elastic material, has sealing annular in shape, and sealing on the inner sidewall of ring body
Inner wall offsets with shaft side wall, which is characterized in that the skeleton made of rigid material, skeleton are fixed in the ring body
In the length of vertical bar shape and skeleton radially extending along ring body, the skeleton at least there are two and along the week of ring body
To being evenly distributed with, the inner end of skeleton is extended in ring body inner cavity, and the ring with shaft coaxial arrangement is offered on the side wall of shaft
Shape slot, annular groove include along the two sidewalls of shaft being axially distributed, and the inner end of the skeleton is inserted in a ring groove, and annular groove
Two sidewalls be resisted against on skeleton.
It is mobile to limit shaft in the axial direction under the cooperation of annular groove and skeleton, so that reducing shaft occurs axial alter
Dynamic probability, Lai Tigao transmission stability and precision.
In combinations of the above formula sealing element, the annular groove further includes bottom wall, and the bottom wall of annular groove is located at annular
Between the two sidewalls of slot, the section of the bottom wall of the annular groove is arc-shaped, and the section of the inner end tail portion of the skeleton is in
It is arc-shaped, and the inner end tail portion of skeleton and the bottom wall of annular groove offset.The annular groove bottom wall and skeleton being arc-shaped in section
Under the cooperation of inner end tail portion, in the axial direction more preferably under the premise of limitation shaft, and preferable guiding role is rotated to shaft, come
Further increase transmission stability and precision.
In combinations of the above formula sealing element, above-mentioned sealing is distributed there are two and along the axial direction of shaft, above-mentioned bone
Frame forms the envelope for storing lubricant grease between two sealings, and between shaft, ring body and two sealings
Closed chamber.Using above-mentioned design, sufficient lubrication is carried out to the contact position of sealing and skeleton and shaft, is extending seal life
While, and the resistance being subject to when shaft rotation is reduced, make to improve transmission stability and precision.
In combinations of the above formula sealing element, above-mentioned rigid material uses plastic material or stainless steel material.
Compared with prior art, this Assembled sealer has the advantage that
1, mobile to limit shaft in the axial direction under the cooperation of annular groove and skeleton, occur axially to reduce shaft
The probability of play, Lai Tigao transmission stability and precision.
2, the closing chamber for storing lubricant grease is formed between shaft, ring body and two sealings, to sealing
The contact position of portion and skeleton and shaft carries out sufficient lubrication, while extending seal life, and when reduction shaft rotation
The resistance being subject to makes to improve transmission stability and precision.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of this Assembled sealer.
Fig. 2 is the structural schematic diagram of shaft.
In figure, 1, shaft；1a, annular groove；2, ring body；2a, sealing；3, closing chamber；4, skeleton.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, this Assembled sealer includes covering and elastic material made of ring body 2 outer in shaft 1, it is excellent
Selecting elastic material is rubber material.On the inner sidewall of ring body 2 have sealing 2a annular in shape, and sealing 2a inner wall with
1 side wall of shaft offsets.It is preferred that sealing 2a is distributed there are two and along the axial of shaft 1, and shaft 1, ring body 2 and two sealings
The closing chamber 3 for storing lubricant grease is formed between portion 2a.
As depicted in figs. 1 and 2, be fixed with skeleton 4 made of rigid material in ring body 2, skeleton 4 in vertical bar shape and
The length of skeleton 4 is radially extended along ring body 2.As shown in Figure 1, skeleton 4 at least there are two and along the circumferential direction of ring body 2
Uniformly distributed, preferably the quantity of skeleton 4 is 2.The inner end of skeleton 4 extends in 2 inner cavity of ring body, and skeleton 4 is located at two sealings
Between portion 2a.The annular groove 1a with the shaft 1 coaxial arrangement is offered on the side wall of shaft 1, annular groove 1a includes along shaft 1
The two sidewalls being axially distributed, the inner end of skeleton 4 are inserted in annular groove 1a, and the two sidewalls of annular groove 1a are resisted against on skeleton 4.
Wherein, preferably rigid material uses plastic material or stainless steel material.
Further illustrate, annular groove 1a further includes bottom wall, and the bottom wall of annular groove 1a be located at annular groove 1a two sidewalls it
Between, the section of the bottom wall of annular groove 1a is arc-shaped, and the section of the inner end tail portion of skeleton 4 is arc-shaped, and the inner end tail of skeleton 4
Portion and the bottom wall of annular groove 1a offset.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (4)
1. a kind of Assembled sealer, including cover shaft (1) outside and the ring body made of elastic material (2), annular this
There is sealing (2a) annular in shape, and sealing (2a) inner wall offsets with shaft (1) side wall on the inner sidewall of body (2), it is special
Sign is, is fixed with the skeleton made of rigid material (4) in the ring body (2), and skeleton (4) is in vertical bar shape and skeleton
(4) length is radially extended along ring body (2), the skeleton (4) at least there are two and the circumferential direction along ring body (2)
Uniformly distributed, the inner end of skeleton (4) extends in ring body (2) inner cavity, offers on the side wall of shaft (1) same with the shaft (1)
Axis setting annular groove (1a), annular groove (1a) include along the two sidewalls of shaft (1) being axially distributed, the skeleton (4)
Inner end is inserted in annular groove (1a), and the two sidewalls of annular groove (1a) are resisted against on skeleton (4).
2. Assembled sealer according to claim 1, which is characterized in that the annular groove (1a) further includes bottom wall,
And the bottom wall of annular groove (1a) is located between the two sidewalls of annular groove (1a), the section of the bottom wall of the annular groove (1a) is in circle
The section of arc, the inner end tail portion of the skeleton (4) is arc-shaped, and the inner end tail portion of skeleton (4) and annular groove (1a)
Bottom wall offsets.
3. Assembled sealer according to claim 1 or 2, which is characterized in that above-mentioned sealing (2a) there are two and
Along shaft (1) axial direction distribution, above-mentioned skeleton (4) between two sealings (2a), and shaft (1), ring body (2) and
The closing chamber (3) for storing lubricant grease is formed between two sealings (2a) four.
4. Assembled sealer according to claim 1 or 2, which is characterized in that above-mentioned rigid material uses plastics material
Material or stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821419963.5U CN208885965U (en) | 2018-08-30 | 2018-08-30 | A kind of Assembled sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821419963.5U CN208885965U (en) | 2018-08-30 | 2018-08-30 | A kind of Assembled sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208885965U true CN208885965U (en) | 2019-05-21 |
Family
ID=66510748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821419963.5U Expired - Fee Related CN208885965U (en) | 2018-08-30 | 2018-08-30 | A kind of Assembled sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208885965U (en) |
-
2018
- 2018-08-30 CN CN201821419963.5U patent/CN208885965U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190521 Termination date: 20210830 |