CN202040333U - Sealing structure of rotating shaft - Google Patents
Sealing structure of rotating shaft Download PDFInfo
- Publication number
- CN202040333U CN202040333U CN2011201030557U CN201120103055U CN202040333U CN 202040333 U CN202040333 U CN 202040333U CN 2011201030557 U CN2011201030557 U CN 2011201030557U CN 201120103055 U CN201120103055 U CN 201120103055U CN 202040333 U CN202040333 U CN 202040333U
- Authority
- CN
- China
- Prior art keywords
- sealing
- rotating shaft
- end cap
- sealing part
- sealing structure
- 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
Links
Images
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model discloses a sealing structure of a rotating shaft. An annular sealing part is sleeved between the rotating shaft and an inner bore of an end cap, the outer edge of the sealing part is in close fit with the inner bore of the end cap, and the inner edge of the sealing part is abutted to a cylindrical surface of the rotating shaft. The sealing structure is characterized in that the cross section of the sealing part is in the shape of 'K', one side of the flat surface of the 'K'-shaped cross section serves as the outer edge of the sealing part, and a pair of 'splay' inclined surface flanges on the other side of the 'K'-shaped cross section serves as the inner edge of the sealing part. The sealing structure has the automatic compensation function, is small in pressing force and abrasion since the pressing force forming sealing mainly comes from elasticity of the flanges and external pressure, and is capable of effectively reducing resistance when the rotating shaft rotates and decreasing replacing frequency of sealing parts.
Description
Technical field
The utility model relates to a kind of sealing configuration, the sealing configuration of a kind of rotating shaft of more specifically saying so.
Background technique
In the prior art, rotating shaft sealing structure is between rotating shaft and end cap endoporus seal ring to be set, seal ring is a Cylindrical object, it is the rubber seal that a center has metal frame, the inner edge and the outer rim of seal ring are planar surface, the outer rim of seal ring and end cap endoporus keep interference fit, intercept along air in this way and reveal along rotating shaft, reach the purpose of sealing.The existing problem of this sealing configuration is that sealed inner peripheral surface of rotating shaft tightly waled, and resistance is bigger during rotation, and the Sealing inner peripheral surface is easy to wear, can only guarantee the reliability that seals, its servicing operations complexity by changing Sealing in case form wearing and tearing.
The model utility content
The utility model is for avoiding above-mentioned existing in prior technology deficiency, rotating shaft sealing structure is provided, the resistance when reducing the rotating shaft rotation with its specific structural type, reliable with the compensation ability assurance sealing of himself, reduce the replacing of Sealing, simplify servicing operations.
The utility model adopts following technological scheme for the technical solution problem
The utility model rotating shaft sealing structure is to be sleeved between the endoporus of rotating shaft and end cap with annular seal, the inner hole wall drive fit of the outer rim of described Sealing and end cap, and the inner edge of described Sealing and the cylinder of rotating shaft are inconsistent; Its structural feature is that the transverse section that described Sealing is set is " K " shape, is the outer rim of Sealing with planar surface one side of described " K " shape transverse section, and a pair of inclined-plane flange that is " eight " word with opposite side on described " K " shape transverse section is the inner edge of Sealing.
The characteristics of the utility model rotating shaft sealing structure are that also described a pair of inclined-plane flange is that one is long and the other is short and is provided with, and are higher than the situation of the inner side pressure of end cap for the outside side pressure of end cap, with wherein long flange towards the outside of end cap one side; Be lower than the situation of the inner side pressure of end cap for the outside side pressure of end cap, with wherein long flange towards the inside of end cap one side.
Compared with the prior art, the utility model beneficial effect is embodied in:
1, the utility model is the Sealing that " K " shape is provided with and has automatic compensation function, can obviously reduce rotational resistance, to keep rotating shaft to rotate smooth and easy.
2, automatic compensation function of the present utility model greatly reduces the replacing frequency of Sealing, and is easy to maintenance, user cost is lower.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model Sealing schematic cross-sectional view;
Number in the figure: 1 Sealing; 2 rotating shafts; 3 end caps; 4 flanges; The inclined-plane flange that 4a is long; 5 bearings.
Embodiment
Referring to Fig. 1, rotating shaft sealing structure in the present embodiment is that annular seal 1 is sleeved between the endoporus of rotating shaft 2 and end cap 3, rotating shaft 2 is positioned in the endoporus of end cap 3 by bearing 5, the inner hole wall drive fit of the outer rim of Sealing 1 and end cap 3, the cylinder of the inner edge of Sealing 1 and rotating shaft 2 is inconsistent, to intercept air leak.
Fig. 1, shown in Figure 2, in the present embodiment, the transverse section that Sealing 1 is set is " K " shape, planar surface one side with " K " shape transverse section is the outer rim of Sealing 1, the a pair of inclined-plane flange 4 that opposite side is " eight " word on " K " shape transverse section is the inner edge of Sealing 1, is pressed on the cylinder of rotating shaft 2 with its a pair of inclined-plane flange 4 that is " eight " word.
A pair of inclined-plane flange 4 is that one is long and the other is short is provided with in concrete the enforcement, the situation that is higher than the inner side pressure of end cap for end cap 3 outside side pressure, with wherein long flange towards the outside of end cap 3 side, intake manifold presents negative pressure state when work, the long inclined-plane flange 4a that arranges towards the outside side of end cap in the Sealing 1 is pressed on rotating shaft 2 cylinders because of bearing external pressure, realizes sealing with this.
And be lower than the situation of the inner side pressure of end cap for outside one side pressure of end cap 3, with wherein long flange 4a towards the inside of end cap 3 side.The long inclined-plane flange 4a that arranges towards the inner side of end cap in the Sealing 1 is pressed on rotating shaft 2 cylinders because of bearing internal pressure, realizes sealing with this.
Because between the outer rim of Sealing 1 and the inner hole wall of end cap 3 is drive fit, therefore when rotating shaft 2 was rotated, Sealing 1 and end cap 3 relative fixed were along with rotating shaft 2 is rotated.
Claims (2)
1. rotating shaft sealing structure, be to be sleeved between the endoporus of rotating shaft (2) and end cap (3) with annular seal (1), the inner hole wall drive fit of the outer rim of described Sealing (1) and end cap (3), the cylinder of the inner edge of described Sealing (1) and rotating shaft (2) is inconsistent; It is characterized in that the transverse section that described Sealing (1) is set is " K " shape, is the outer rim of Sealing (1) with planar surface one side of described " K " shape transverse section; The a pair of inclined-plane flange (4) that is " eight " word with opposite side on described " K " shape transverse section is the inner edge of Sealing (1).
2. rotating shaft sealing structure according to claim 1, it is characterized in that described a pair of inclined-plane flange (4) is that one is long and the other is short and is provided with, be higher than the situation of the inner side pressure of end cap for the outside side pressure of end cap (3), with wherein long flange towards the outside of end cap (a 3) side; Be lower than the situation of the inner side pressure of end cap for the outside side pressure of end cap (3), with wherein long flange towards the inside of end cap (a 3) side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201030557U CN202040333U (en) | 2011-04-11 | 2011-04-11 | Sealing structure of rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201030557U CN202040333U (en) | 2011-04-11 | 2011-04-11 | Sealing structure of rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202040333U true CN202040333U (en) | 2011-11-16 |
Family
ID=44967776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201030557U Expired - Fee Related CN202040333U (en) | 2011-04-11 | 2011-04-11 | Sealing structure of rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202040333U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230538A (en) * | 2011-04-11 | 2011-11-02 | 合肥恒信汽车发动机部件制造有限公司 | Rotating shaft sealing structure |
-
2011
- 2011-04-11 CN CN2011201030557U patent/CN202040333U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230538A (en) * | 2011-04-11 | 2011-11-02 | 合肥恒信汽车发动机部件制造有限公司 | Rotating shaft sealing structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202040333U (en) | Sealing structure of rotating shaft | |
| CN201391553Y (en) | Sealed bearing block | |
| CN202707231U (en) | Self-locking type turbocharger sealing ring | |
| CN102230538A (en) | Rotating shaft sealing structure | |
| CN202291425U (en) | Micro-gap rotary sealing device | |
| CN205429931U (en) | Arrange water pump rotor seal cover | |
| CN201487211U (en) | Bearing combination oil seal | |
| CN204126894U (en) | A kind of electronic vacuum pump and impeller thereof | |
| CN203770382U (en) | Irregularly-shaped turntable bearing for sewage treatment | |
| CN201705938U (en) | Sealing element for thin wall | |
| CN209012254U (en) | A kind of quick detachable bearing | |
| CN205136383U (en) | Straightening machine is with sealed biserial cylindrical roller bearing | |
| CN202360440U (en) | Improved structure of vortex pump body supporting frame | |
| CN203146600U (en) | High-sealing low-torque combined type sealing ring | |
| CN201779147U (en) | Novel oil seal for hub bearing unit | |
| CN2795540Y (en) | One and sealed type punching external ring rolling needle bearing | |
| CN202901282U (en) | Centrifuge spindle transmission assembly | |
| CN202833627U (en) | Steering knuckle bearing | |
| CN219263021U (en) | Silt-proof sealing universal joint beneficial to processing | |
| CN201269269Y (en) | Press mounting and sealing combination for bearing | |
| CN201502448U (en) | Automobile engine cylinder head cover sealing gasket | |
| CN2878813Y (en) | Oil seal | |
| CN202599086U (en) | Rotary kiln body sealing mechanism | |
| CN201931987U (en) | Electromobile wheel | |
| CN203384361U (en) | Rotary skeleton anti-leakage sealing ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Rotating shaft sealing structure Effective date of registration: 20141118 Granted publication date: 20111116 Pledgee: Hefei SME financing Company limited by guarantee Pledgor: Hefei Hengxin Automotive Engine Component Manufacturing Co., Ltd. Registration number: 2014990000957 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20151123 Granted publication date: 20111116 Pledgee: Hefei SME financing Company limited by guarantee Pledgor: Hefei Hengxin Automotive Engine Component Manufacturing Co., Ltd. Registration number: 2014990000957 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| 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: 20111116 Termination date: 20160411 |