CN210423723U - Shaft sleeve split type mechanical seal easy to disassemble - Google Patents
Shaft sleeve split type mechanical seal easy to disassemble Download PDFInfo
- Publication number
- CN210423723U CN210423723U CN201921146080.6U CN201921146080U CN210423723U CN 210423723 U CN210423723 U CN 210423723U CN 201921146080 U CN201921146080 U CN 201921146080U CN 210423723 U CN210423723 U CN 210423723U
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- shaft sleeve
- rear section
- section shaft
- mechanical seal
- ring
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Abstract
The utility model discloses a shaft sleeve split type mechanical seal easy to disassemble, the shaft sleeve is divided into a front section and a rear section, the movable ring is fixed on the front section shaft sleeve by a movable ring seat, the stationary ring is sleeved on the outer ring surface of the rear section shaft sleeve and is connected with a pump shell by utilizing flushing water; the rear section shaft sleeve is divided into a left part and a right part along the radial direction. The shaft sleeve of the mechanical seal with the structure is split into a front section and a rear section, and the rear section of the mechanical seal is further radially split. The problem that the shaft sleeve is difficult to detach from the shaft sleeve due to siltation caused by medium precipitation and crystallization is avoided, and the problem that a main shaft is damaged due to violent detachment of the shaft sleeve is also avoided.
Description
Technical Field
The utility model relates to a mechanical seal, especially a mechanical seal of split type axle sleeve.
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 extends through the inside and outside of the apparatus, there is a circumferential gap between the shaft and the apparatus through which the medium in the apparatus leaks out, and if the pressure in the apparatus is lower than atmospheric pressure, air leaks into the apparatus, so that a shaft seal device must be provided to prevent leakage. The shaft seal has many kinds, and the mechanical seal has the advantages of small leakage amount, long service life and the like, so the mechanical seal is the most important shaft sealing mode in the devices in the world. Mechanical seals, also called face seals, are defined in the relevant national standards as follows: "means for preventing fluid leakage, which is composed of at least one pair of end faces perpendicular to the rotation axis, and which are kept in fit and relatively slide under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and the cooperation of the auxiliary seal. "
In a medium with more particles and strong corrosivity, the shaft sleeve cannot be detached due to corrosion or particle deposition and the like often, other tools are used for forcibly knocking and detaching, other parts on the whole machine seal are easily damaged, or the pump shaft is damaged, so that the concentricity, the straightness and the like of the pump shaft are affected.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a quick detachable mechanical seal of axle sleeve subdivision formula which axle sleeve is the subdivision formula for whole mechanical seal is dismantled easily.
In order to solve the technical problem, the technical scheme of the utility model is to adopt a shaft sleeve split type easily detachable mechanical seal, which comprises a shaft sleeve fixedly sleeved on a main shaft, a movable ring and a static ring which are mutually matched and sealed, wherein the shaft sleeve is divided into a front section and a rear section, the movable ring is fixed on the front section shaft sleeve by a movable ring seat, and the static ring is sleeved on the outer ring surface of the rear section shaft sleeve and is sleeved on a pump shell by utilizing flushing water to be connected; the rear section shaft sleeve is divided into a left part and a right part along the radial direction; a sub-opening is formed in the rear end face of the front section shaft sleeve, and an annular table is arranged at the front end of the rear section shaft sleeve; the front section shaft sleeve and the rear section shaft sleeve are embedded in the sub-opening through the annular table to be connected; the rear end surface of the front section shaft sleeve and the front end surface of the rear section shaft sleeve are also provided with a transmission groove and a transmission key which are matched with each other for transmission; and a semi-dividing ring used for fixing the rear section shaft sleeve on the main shaft is arranged at the rear end of the rear section shaft sleeve.
As an improvement, the rear end of the flushing water jacket is provided with a sealing cover, and a water retaining ring is clamped on the sealing cover. The flushing water is sealed by a water retaining ring.
As a further improvement, a labyrinth groove is arranged on the inner ring surface of the water retaining ring. Further improving the ability to seal the flush water.
Preferably, the front section shaft sleeve is made of 904L steel material, and the rear section shaft sleeve is made of 316L steel material.
The utility model discloses an useful part lies in: the shaft sleeve of the mechanical seal with the structure is split into a front section and a rear section, and the rear section of the mechanical seal is further radially split. The problem that the shaft sleeve is difficult to detach from the shaft sleeve due to siltation caused by medium precipitation and crystallization is avoided, and the problem that a main shaft is damaged due to violent detachment of the shaft sleeve is also avoided.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the front-section shaft sleeve.
Fig. 3 is a schematic structural diagram of the rear-section bushing.
The labels in the figure are: 1 front section axle sleeve, 2 back end axle sleeves, 3 transmission grooves, 4 transmission keys, 5 minutes semi-ring, 6 rim of a mouth, 7 annular platforms, 8 rotating rings, 9 quiet rings, 10 wash water jacket, 11 manger plate rings.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the specific embodiments.
As shown in fig. 1, 2 and 3, the present invention comprises a shaft sleeve fixedly sleeved on a main shaft, and a movable ring 8 and a stationary ring 9 which are mutually matched and sealed, wherein the shaft sleeve is divided into a front section and a rear section, the movable ring 8 is fixed on the front section shaft sleeve 1 by a movable ring seat, and the stationary ring 9 is sleeved on the outer annular surface of the rear section shaft sleeve 2 and is connected with a pump shell by a flushing water jacket 10; the rear section shaft sleeve 2 is divided into a left part and a right part along the radial direction; a sub-opening 6 is formed in the rear end face of the front section shaft sleeve 1, and an annular table 7 is arranged at the front end of the rear section shaft sleeve 2; the front section shaft sleeve 1 and the rear section shaft sleeve 2 are embedded in the seam allowance 6 through an annular table 7 to be connected; the rear end surface of the front section shaft sleeve 1 and the front end surface of the rear section shaft sleeve 2 are also provided with a transmission groove 3 and a transmission key 4 which are matched with each other for transmission; and a semi-dividing ring 5 used for fixing the rear section shaft sleeve 2 on the main shaft is arranged at the rear end of the rear section shaft sleeve 2.
The rear end of the flushing water jacket 10 is provided with a sealing cover, and a water retaining ring 11 is clamped on the sealing cover. The inner ring surface of the water retaining ring 11 is provided with a labyrinth groove.
The front section shaft sleeve is made of 904L steel materials, and the rear section shaft sleeve is made of 316L steel materials. Different materials are adopted to adapt to different working conditions, and the cost is reduced.
When the device is installed, the left and right rear section shaft sleeves 2 are folded and then clamped in the seam allowance 6 of the front section shaft sleeve 1, and the rear ends of the left and right rear section shaft sleeves are fixed by the semi-parting rings 5, so that the two sections of shaft sleeves are combined into a whole. When the dismounting device is used for dismounting, the front section shaft sleeve 1 is firstly dismounted, and the accessories connected on the rear section shaft sleeve 2 are also easily dismounted. And finally, the rear section shaft sleeve 2 is split into a left part and a right part, so that the rear section shaft sleeve is very easy to peel off from the main shaft.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.
Claims (4)
1. The utility model provides a quick detachable mechanical seal of axle sleeve subdivision formula, includes fixed cover in main epaxial axle sleeve and the sealed rotating ring and the quiet ring of mutually supporting, its characterized in that: the shaft sleeve is divided into a front section and a rear section, the movable ring is fixed on the front section shaft sleeve by a movable ring seat, and the stationary ring is sleeved on the outer ring surface of the rear section shaft sleeve and is connected with the pump shell by flushing water; the rear section shaft sleeve is divided into a left part and a right part along the radial direction; a sub-opening is formed in the rear end face of the front section shaft sleeve, and an annular table is arranged at the front end of the rear section shaft sleeve; the front section shaft sleeve and the rear section shaft sleeve are embedded in the sub-opening through the annular table to be connected; the rear end surface of the front section shaft sleeve and the front end surface of the rear section shaft sleeve are also provided with a transmission groove and a transmission key which are matched with each other for transmission; and a semi-dividing ring used for fixing the rear section shaft sleeve on the main shaft is arranged at the rear end of the rear section shaft sleeve.
2. The split quick-release mechanical seal of a shaft sleeve according to claim 1, wherein: the rear end of the flushing water jacket is provided with a sealing cover, and a water retaining ring is clamped on the sealing cover.
3. The split quick-release mechanical seal of a shaft sleeve according to claim 2, wherein: and a labyrinth groove is formed in the inner annular surface of the water retaining ring.
4. The split quick-release mechanical seal of a shaft sleeve according to claim 1, wherein: the front section shaft sleeve is made of 904L steel materials, and the rear section shaft sleeve is made of 316L steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921146080.6U CN210423723U (en) | 2019-07-19 | 2019-07-19 | Shaft sleeve split type mechanical seal easy to disassemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921146080.6U CN210423723U (en) | 2019-07-19 | 2019-07-19 | Shaft sleeve split type mechanical seal easy to disassemble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210423723U true CN210423723U (en) | 2020-04-28 |
Family
ID=70381832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921146080.6U Active CN210423723U (en) | 2019-07-19 | 2019-07-19 | Shaft sleeve split type mechanical seal easy to disassemble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210423723U (en) |
-
2019
- 2019-07-19 CN CN201921146080.6U patent/CN210423723U/en active Active
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