CN210372011U - Extendable and rotatable mechanical seal - Google Patents
Extendable and rotatable mechanical seal Download PDFInfo
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- CN210372011U CN210372011U CN201920856526.8U CN201920856526U CN210372011U CN 210372011 U CN210372011 U CN 210372011U CN 201920856526 U CN201920856526 U CN 201920856526U CN 210372011 U CN210372011 U CN 210372011U
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Abstract
The utility model discloses an extensible and rotatory mechanical seal device, include: the shaft sleeve is a hollow shaft sleeve, the shaft sleeve is fixed on a main shaft, the shaft sleeve is installed in the shaft sleeve transmission sleeve, the movable ring transmission sleeve is arranged on the shaft sleeve transmission sleeve, the movable ring transmission sleeve is fixed on the movable ring, the movable ring is movably installed on the stationary ring, the stationary ring is fixed on the sealing box body, and the sealing box body is arranged outside the stationary ring. The utility model discloses can guarantee that the axle sleeve can effectual slip and can guarantee sealing performance in the axle sleeve driving sleeve, avoid because the sealed bad that produces after the axle sleeve drunkenness, in the use, in case the axle sleeve damages, can directly change, and need not dismantle whole set sealed, effectual reduction maintenance duration and cost improve production efficiency.
Description
Technical Field
The utility model relates to a machinery technical field, concretely relates to mechanical seal device of extensible and rotation.
Background
The mechanical seal is a shaft seal device of a rotating machine. Such as centrifugal pumps, centrifuges, reaction kettles, compressors, and the like. Since the drive shaft runs through the device in and out, so that a circumferential gap exists between the shaft and the device, through which gap the medium in the device leaks outwards, a leakage-preventing shaft seal is necessary.
During the operation of the mechanical sealing device, the sealing performance of the sealing device needs to be improved due to the stroke of the shaft.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an extensible and rotatory mechanical seal device can guarantee that the axle sleeve can effectual slip and can guarantee sealing performance in the axle sleeve driving sleeve, avoids because the sealed harmfully that produces behind the axle sleeve drunkenness.
In order to realize the purpose, the utility model discloses a technical scheme be:
an extendable and rotatable mechanical seal device comprising: the shaft sleeve is a hollow shaft sleeve, the shaft sleeve is fixed on a main shaft, the shaft sleeve is installed in the shaft sleeve transmission sleeve, the movable ring transmission sleeve is arranged on the shaft sleeve transmission sleeve, the movable ring transmission sleeve is fixed on the movable ring, the movable ring is movably installed on the stationary ring, the stationary ring is fixed on the sealing box body, and the sealing box body is arranged outside the stationary ring.
Furthermore, the shaft sleeve is fixed on the main shaft through a shaft sleeve locking nut and a half fixing ring.
Furthermore, the shaft sleeve is provided with a plurality of spline grooves, the shaft sleeve transmission sleeve is provided with a plurality of buckles which are consistent with the spline grooves in quantity and are matched with the spline grooves, and the shaft sleeve transmission sleeve are connected through the spline grooves and the buckles.
Furthermore, a movable ring transmission sleeve is fixed on the upper end face of the shaft sleeve transmission sleeve through a first set screw, and a movable ring transmission sleeve is fixed on the lower end face of the shaft sleeve through a second set screw.
Further, the number of the spline grooves and the number of the buckles are in direct proportion to the shaft diameter of the main shaft, and the number of the spline grooves is 4-12.
Further, a first sealing ring is arranged between the shaft sleeve and the shaft sleeve transmission sleeve.
Furthermore, a second sealing ring is arranged between the movable ring and the movable ring transmission sleeve.
Further, the sealed box body includes: the medium end sealing box body is used for being arranged in a medium, and the atmosphere end sealing box body is used for being arranged in air.
Further, a bearing is arranged between the shaft sleeve transmission sleeve and the atmosphere sealing box body.
Further, a spring seat is arranged on the static ring, a spring is arranged in the spring seat, and the spring is arranged between the static ring and the movable ring.
Since the technical scheme is used, the beneficial effects of the utility model are that:
the utility model discloses can guarantee that the axle sleeve can effectual slip and can guarantee sealing performance in the axle sleeve driving sleeve, avoid because the sealed bad that produces after the axle sleeve drunkenness, in the use, in case the axle sleeve damages, can directly change, and need not dismantle whole set sealed, effectual reduction maintenance duration and cost improve production efficiency.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the shaft sleeve structure of the present invention.
Fig. 3 is a schematic view of the structure of the shaft sleeve transmission sleeve of the present invention.
The corresponding part names indicated by the numbers and letters in the drawings:
1. a shaft sleeve; 2. a shaft sleeve transmission sleeve; 3. a movable ring transmission sleeve; 4. a moving ring; 5. a stationary ring; 6. the medium end is sealed with the box body; 7. the atmosphere end is sealed with the box body; 8. a first seal ring; 9. a second seal ring; 10. a third seal ring; 11. a fourth seal ring; 12. a deep groove ball bearing; 13. a tapered roller bearing; 14. a spring seat; 15. a spring.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The utility model provides an extensible and rotatory mechanical seal device guarantees that the axle sleeve can effectual slip and can guarantee sealing performance in the axle sleeve driving sleeve, avoids because the sealed harmfully that produces after the axle sleeve drunkenness, in the use, in case the axle sleeve damages, can directly change, and need not dismantle whole set sealed, effectual reduction maintenance duration and cost improve production efficiency.
The present invention will be described in further detail with reference to examples and embodiments.
As shown in fig. 1: an extendable and rotatable mechanical seal device comprising: the shaft sleeve comprises a shaft sleeve 1, a shaft sleeve transmission sleeve 2, a movable ring transmission sleeve 3, at least one movable ring 4, a static ring 5 and a sealing box body, wherein the static ring 5 and the sealing box body are the same in quantity with the movable ring 4, the shaft sleeve 1 is a hollow shaft sleeve 1, the shaft sleeve 1 is fixed on a main shaft, the shaft sleeve 1 is installed in the shaft sleeve transmission sleeve 2, the movable ring transmission sleeve 3 is sleeved on the shaft sleeve transmission sleeve 2, the movable ring transmission sleeve 3 is fixed on the movable ring 4, the movable ring 4 is movably installed on the static ring 5, the static ring 5 is fixed on the sealing box body, and the sealing box body is arranged outside the static ring 5.
Compared with the prior art, the utility model discloses a rotating ring 4 and quiet ring 5 make axle sleeve 1 can be in 2 effectual removals of axle sleeve transmission, and the effectual sealing performance of having guaranteed moreover avoids because the sealed harmfulness that produces behind the 1 drunkenness of axle sleeve.
Wherein, three rotating ring 4 and three quiet ring 5 have been set up in this embodiment, wherein two sets of rotating rings 4, quiet ring 5 sets up in medium end seal box 6, another set of rotating ring 4, quiet ring 5 sets up in atmosphere end seal box 7, the bottom of medium end seal box 6 is provided with medium end quiet ring seat, quiet ring 5 is fixed with medium end quiet ring seat through hexagon socket head cap screw, be provided with quiet ring O type circle between quiet ring 5 and the medium end quiet ring seat, be provided with atmosphere end quiet ring seat on the atmosphere end seal box 7, quiet ring 5 is fixed with atmosphere end quiet ring seat through hexagon socket head cap screw, be provided with quiet ring O type circle between quiet ring 5 and the atmosphere end quiet ring seat.
The shaft sleeve 1 is fixed on the main shaft through a locking nut and a half fixing ring of the shaft sleeve 1.
Compared with the prior art, the shaft sleeve 1 is detachably arranged in the shaft sleeve transmission sleeve 2, and in the using process, once the shaft sleeve 1 is damaged, the shaft sleeve can be directly replaced without disassembling the whole set of seal, so that the maintenance time and cost are effectively reduced, and the production efficiency is improved.
The novel movable ring transmission sleeve is characterized in that a plurality of spline grooves are formed in the shaft sleeve 1, a plurality of buckles matched with the spline grooves in the same number are arranged on the shaft sleeve transmission sleeve 2, the shaft sleeve 1 and the shaft sleeve transmission sleeve 2 are connected through the spline grooves and the buckles, and the spline grooves are favorable for installation of assemblies such as the movable ring transmission sleeve 3.
The upper end face of the shaft sleeve transmission sleeve 2 is fixed with a movable ring transmission sleeve 3 through a first set screw, and the lower end face of the shaft sleeve 1 is fixed with a movable ring transmission sleeve 3 through a second set screw.
The number of the spline grooves and the number of the buckles are in direct proportion to the shaft diameter of the main shaft, and the number of the spline grooves is 4-12.
A first sealing ring 8 is arranged between the shaft sleeve 1 and the shaft sleeve transmission sleeve 2.
And a second sealing ring 9 is arranged between the movable ring 4 and the movable ring transmission sleeve 3.
Wherein, sealed box includes: the medium end sealing box body 6 and the atmosphere end sealing box body 7 are arranged, a third sealing ring 10 is arranged between the medium end sealing box body 6 and the static ring 5, a fourth sealing ring 11 is arranged between the atmosphere end sealing box body 7 and the static ring 5, the medium end sealing box body 6 is used for being arranged in a medium, and the atmosphere end sealing box body 7 is used for being arranged in air.
And a bearing is arranged between the shaft sleeve transmission sleeve 2 and the atmosphere sealing box body, the bearing comprises a deep groove ball bearing 12 and a tapered roller bearing 13, the deep groove ball bearing 12 and the tapered roller bearing 13 are arranged above the atmosphere end static ring 5 seat, and a positioning clamping piece is arranged at the top of the atmosphere end sealing box body 7.
The fixed ring 5 is provided with a spring seat 14, a spring 15 is arranged in the spring seat 14, and the spring 15 is arranged between the fixed ring 5 and the movable ring 4.
The medium end sealing box body 6 is provided with a sealing liquid inlet and a sealing liquid outlet, the atmosphere end sealing box body 7 is also provided with a sealing liquid inlet and a sealing liquid outlet, and the atmosphere end sealing box body is also provided with an oil injection port and a leakage port.
The utility model discloses can set up the length of medium end seal box 6 and the length of atmosphere end seal box 7 according to the length of axle, set up multiunit rotating ring 4 and quiet ring 5 simultaneously, the extension of being convenient for.
Since the technical scheme is used, the beneficial effects of the utility model are that:
the utility model discloses can guarantee that axle sleeve 1 can effectual slip and can guarantee sealing performance in axle sleeve driving sleeve 2, avoid because the sealed harmfully that produces after the 1 drunkenness of axle sleeve, in the use, in case axle sleeve 1 damages, can directly change, and need not dismantle whole set sealed, effectual reduction maintenance duration and cost improve production efficiency.
The above description is only the preferred embodiment of the extendable and rotatable mechanical seal device disclosed in the present invention, and it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the inventive concept of the present invention, and all of them belong to the protection scope of the present invention.
Claims (10)
1. An extendable and rotatable mechanical seal, comprising: the shaft sleeve is a hollow shaft sleeve, the shaft sleeve is fixed on a main shaft, the shaft sleeve is installed in the shaft sleeve transmission sleeve, the movable ring transmission sleeve is arranged on the shaft sleeve transmission sleeve, the movable ring transmission sleeve is fixed on the movable ring, the movable ring is movably installed on the stationary ring, the stationary ring is fixed on the sealing box body, and the sealing box body is arranged outside the stationary ring.
2. The extendable and rotatable mechanical seal of claim 1, wherein said hub is secured to the main shaft by a hub lock nut and a split retaining ring.
3. The extendable and rotatable mechanical seal of claim 2, wherein the sleeve has a plurality of spline grooves, the sleeve driving sleeve has a plurality of fasteners matching the spline grooves, and the sleeve driving sleeve are connected by the spline grooves and the fasteners.
4. The extendable and rotatable mechanical seal of claim 3, wherein a movable ring driving sleeve is fixed to the upper end surface of the sleeve driving sleeve by a first set screw, and a movable ring driving sleeve is fixed to the lower end surface of the sleeve by a second set screw.
5. The extendable and rotatable mechanical seal of claim 3, wherein the number of spline grooves and snaps is in direct proportion to the shaft diameter of the main shaft, and the number of spline grooves is 4-12.
6. The extendable and rotatable mechanical seal of claim 1, wherein a first seal is disposed between the sleeve and the sleeve drive sleeve.
7. The extendable and rotatable mechanical seal of claim 1, wherein a second seal is disposed between the rotating ring and the rotating ring drive sleeve.
8. The extendable and rotatable mechanical seal of claim 1, wherein said seal housing comprises: the medium end sealing box body is used for being arranged in a medium, and the atmosphere end sealing box body is used for being arranged in air.
9. An extendable and rotatable mechanical seal as claimed in claim 8, wherein a bearing is provided between the sleeve drive sleeve and the atmospheric sealed enclosure.
10. The extendable and rotatable mechanical seal of claim 1, wherein a spring seat is provided on the stationary ring, a spring is provided in the spring seat, and the spring is provided between the stationary ring and the rotating ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920856526.8U CN210372011U (en) | 2019-06-06 | 2019-06-06 | Extendable and rotatable mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920856526.8U CN210372011U (en) | 2019-06-06 | 2019-06-06 | Extendable and rotatable mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210372011U true CN210372011U (en) | 2020-04-21 |
Family
ID=70263759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920856526.8U Active CN210372011U (en) | 2019-06-06 | 2019-06-06 | Extendable and rotatable mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210372011U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259950A (en) * | 2019-06-06 | 2019-09-20 | 密友集团有限公司 | Extensible and rotation mechanically-sealing apparatus |
-
2019
- 2019-06-06 CN CN201920856526.8U patent/CN210372011U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259950A (en) * | 2019-06-06 | 2019-09-20 | 密友集团有限公司 | Extensible and rotation mechanically-sealing apparatus |
| CN110259950B (en) * | 2019-06-06 | 2024-05-17 | 密友集团有限公司 | Extendable and rotatable mechanical seal device |
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