CN210397714U - Rotating shaft sealing structure - Google Patents
Rotating shaft sealing structure Download PDFInfo
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- CN210397714U CN210397714U CN201921495036.6U CN201921495036U CN210397714U CN 210397714 U CN210397714 U CN 210397714U CN 201921495036 U CN201921495036 U CN 201921495036U CN 210397714 U CN210397714 U CN 210397714U
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- shaft
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Abstract
The utility model provides a rotary shaft sealing structure, which comprises a rotary shaft, a sealing component and a shell; the rotating shaft is arranged in the shaft hole of the shell, and a sealing assembly is arranged between the rotating shaft and the shaft hole of the shell; the first sealing shell and the second sealing shell are fixed at the outer end of the shell together through bolts, the first sealing shell is tightly attached to the shell, and a first O-shaped sealing ring is arranged between the first sealing shell and the shell; the sealing shell is arranged on the inner side of the second sealing shell through a first positioning pin and clamped between the second sealing shell and the protruding structure of the first sealing shell; grooves are formed in the two ends of the periphery of the sealing shell, and second O-shaped sealing rings are arranged in the grooves; the utility model provides high seal assembly's sealing performance, the effectual fluid that has prevented leaks.
Description
Technical Field
The utility model relates to a mechanical automation field especially relates to a rotation axis seal structure.
Background
With the continuous improvement of automation technology, the requirement on mechanical sealing performance is higher and higher, a rotating shaft is a common rotating part in automation technology, but sealing fluid leakage often occurs between the rotating shaft and a shell.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a rotation axis seal structure to prior art's defect and not enough, this rotation axis seal structure has improved seal assembly's sealing performance, the effectual fluid leakage that has prevented.
In order to achieve the above object, the utility model adopts the following technical scheme: a rotary shaft sealing structure comprises a rotary shaft, a sealing assembly and a shell; the rotating shaft is arranged in the shaft hole of the shell, and a sealing assembly is arranged between the rotating shaft and the shaft hole of the shell; the sealing assembly comprises a first sealing shell, a second sealing shell, a sealing shell, an L-shaped sealing ring, an annular sealing element, a side sealing ring, a shaft collar, a first O-shaped sealing ring, a second O-shaped sealing ring and a third O-shaped sealing ring; the first sealing shell and the second sealing shell are fixed at the outer end of the shell together through bolts, the first sealing shell is tightly attached to the shell, and a first O-shaped sealing ring is arranged between the first sealing shell and the shell; the sealing shell is arranged on the inner side of the second sealing shell through a first positioning pin and clamped between the second sealing shell and the protruding structure of the first sealing shell; grooves are formed in the two ends of the periphery of the sealing shell, and second O-shaped sealing rings are arranged in the grooves; a clamping groove, a concave part and an annular bulge are reserved on the inner side of the sealing shell; the annular sealing element is arranged in the clamping groove, and the contact surface of the annular sealing element and the clamping groove is a step-shaped arc inclined surface; the L-shaped sealing ring is arranged in the concave part; the annular bulge abuts against the outer side of the annular sealing piece in the assembling process and pushes towards the L-shaped sealing ring; the inner side of the L-shaped sealing ring is also provided with a joint groove, and a protruding pin is inserted into the joint groove; the protruding pin is integrally manufactured with the sealing shell; the side sealing ring is attached to the L-shaped sealing ring in the shell, the side sealing ring is fixed on the rotating shaft through a shaft collar, and a second positioning pin is arranged between the side sealing ring and the shaft collar for connection;
preferably, the outer end of the side seal ring is further fitted around the outer periphery of the collar, and third O-rings are provided between the inner and outer peripheries of the collar and the rotary shaft and between the inner and outer peripheries of the collar and the side seal rings, respectively.
The utility model has the advantages that: the rotary shaft sealing structure improves the sealing performance of the sealing assembly and effectively prevents fluid leakage.
Drawings
Fig. 1 is a schematic view of a rotary shaft sealing structure.
Wherein: the shaft seal comprises a rotating shaft 1, a seal assembly 2, a first seal housing 21, a second seal housing 22, a seal housing 23, a first positioning pin 231, a clamping groove 232, a concave portion 233, an annular protrusion 234, a protruding pin 235, an L-shaped seal ring 24, an engaging groove 241, an annular seal 25, a side seal 26, a collar 27, a second positioning pin 271, a first O-shaped seal ring 28, a second O-shaped seal ring 29, a third O-shaped seal ring 30, and a housing 3.
Detailed Description
The present invention will be described in further detail with reference to fig. 1.
As shown in fig. 1, a rotary shaft sealing structure comprises a rotary shaft 1, a sealing assembly 2 and a housing 3; the rotating shaft 1 is arranged in a shaft hole of the shell 3, and a sealing assembly 2 is arranged between the rotating shaft 1 and the shaft hole of the shell 3; the seal assembly 2 comprises a first seal housing 21, a second seal housing 22, a seal housing 23, an L-shaped seal ring 24, an annular seal member 25, a side seal ring 26, a collar 27, a first O-shaped seal ring 28, a second O-shaped seal ring 29 and a third O-shaped seal ring 30; the first sealing shell 21 and the second sealing shell 22 are fixed at the outer end of the shell 3 together through bolts (not shown), the first sealing shell 21 is tightly attached to the shell 3, and a first O-shaped sealing ring 28 is arranged between the first sealing shell 21 and the shell 3; the sealing housing 23 is mounted inside the second sealing housing 22 by the first positioning pin 231, and the sealing housing 23 is clamped between the second sealing housing 22 and the protruding structure of the first sealing housing 21; grooves are formed in the two ends of the periphery of the sealing shell 23, and second O-shaped sealing rings 29 are arranged in the grooves; a clamping groove 232, a concave part 233 and an annular bulge 234 are reserved on the inner side of the sealing shell 23; the annular sealing element 25 is arranged in the clamping groove 232, and the contact surface of the annular sealing element 25 and the clamping groove 232 is a step-shaped arc inclined surface; the L-shaped sealing ring 24 is arranged in the concave part 233; the annular projection bears against the outside of the annular seal 25 and is pushed towards the L-shaped sealing ring 24 during assembly; an engaging groove 241 is also left inside the L-shaped sealing ring 24, and a protruding pin 235 is inserted into the engaging groove 241; the protruding pin 235 is integrally formed with the seal housing 23; the side sealing ring 26 is stuck to the L-shaped sealing ring 24 in the housing 3, the side sealing ring 26 is fixed on the rotating shaft 1 through a collar 27, and a second positioning pin 271 is arranged between the side sealing ring 26 and the collar 27 for connection;
in a specific implementation, the outer end of the side sealing ring 26 is further sleeved on the outer periphery of the collar 27, and third O-ring seals 30 are respectively arranged between the inner periphery and the outer periphery of the collar 27 and the rotating shaft 1 and between the inner periphery and the side sealing ring 26.
The working principle is as follows: in the rotation process of the rotating shaft 1, the pressure of the fluid acts on the inner side surface of the annular sealing element 25, and the inner periphery and the outer periphery of the annular sealing element 25 are tilted to two sides under the action of the annular protrusion 234, so that the sealing performance of the sealing assembly 2 is improved, and the first O-shaped sealing ring 28, the second O-shaped sealing ring 29 and the third O-shaped sealing ring 30 are arranged, so that the fluid leakage is effectively prevented.
Claims (2)
1. A rotary shaft seal structure characterized in that: comprises a rotating shaft, a sealing component and a shell; the rotating shaft is arranged in the shaft hole of the shell, and a sealing assembly is arranged between the rotating shaft and the shaft hole of the shell; the sealing assembly comprises a first sealing shell, a second sealing shell, a sealing shell, an L-shaped sealing ring, an annular sealing element, a side sealing ring, a shaft collar, a first O-shaped sealing ring, a second O-shaped sealing ring and a third O-shaped sealing ring; the first sealing shell and the second sealing shell are fixed at the outer end of the shell together through bolts, the first sealing shell is tightly attached to the shell, and a first O-shaped sealing ring is arranged between the first sealing shell and the shell; the sealing shell is arranged on the inner side of the second sealing shell through a first positioning pin and clamped between the second sealing shell and the protruding structure of the first sealing shell; grooves are formed in the two ends of the periphery of the sealing shell, and second O-shaped sealing rings are arranged in the grooves; a clamping groove, a concave part and an annular bulge are reserved on the inner side of the sealing shell; the annular sealing element is arranged in the clamping groove, and the contact surface of the annular sealing element and the clamping groove is a step-shaped arc inclined surface; the L-shaped sealing ring is arranged in the concave part; the annular bulge abuts against the outer side of the annular sealing piece in the assembling process and pushes towards the L-shaped sealing ring; the inner side of the L-shaped sealing ring is also provided with a joint groove, and a protruding pin is inserted into the joint groove; the protruding pin is integrally manufactured with the sealing shell; the side sealing ring is attached to the L-shaped sealing ring in the shell and fixed on the rotating shaft through a shaft collar, and a second positioning pin is arranged between the side sealing ring and the shaft collar for connection.
2. A rotary shaft seal structure according to claim 1, wherein: the outer end of the side sealing ring is also sleeved on the periphery of the shaft collar, and third O-shaped sealing rings are arranged between the inner periphery and the outer periphery of the shaft collar and the rotating shaft and between the inner periphery and the outer periphery of the shaft collar and the side sealing ring respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921495036.6U CN210397714U (en) | 2019-09-09 | 2019-09-09 | Rotating shaft sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921495036.6U CN210397714U (en) | 2019-09-09 | 2019-09-09 | Rotating shaft sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210397714U true CN210397714U (en) | 2020-04-24 |
Family
ID=70341437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921495036.6U Active CN210397714U (en) | 2019-09-09 | 2019-09-09 | Rotating shaft sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210397714U (en) |
-
2019
- 2019-09-09 CN CN201921495036.6U patent/CN210397714U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 511462 2201, 2nd floor, building 1, no.6, Nanjiang 2nd Road, Zhujiang street, Nansha District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Yinghuixing Technology Co.,Ltd. Address before: 511462 2201, 2nd floor, building 1, no.6, Nanjiang 2nd Road, Zhujiang street, Nansha District, Guangzhou City, Guangdong Province Patentee before: Guangzhou Yinghuixing Technology Co.,Ltd. |