CN212868451U - Split oil seal gland mechanical seal - Google Patents
Split oil seal gland mechanical seal Download PDFInfo
- Publication number
- CN212868451U CN212868451U CN202021425998.7U CN202021425998U CN212868451U CN 212868451 U CN212868451 U CN 212868451U CN 202021425998 U CN202021425998 U CN 202021425998U CN 212868451 U CN212868451 U CN 212868451U
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- Prior art keywords
- seal
- gland
- oil seal
- ring
- oil
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- 210000004907 gland Anatomy 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000003068 static effect Effects 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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- Mechanical Sealing (AREA)
Abstract
The utility model discloses a split type oil seal gland mechanical seal, which comprises a shaft sleeve fixedly sleeved on a main shaft, and a movable ring and a static ring which are mutually matched for sealing; the movable ring is fixed with the shaft sleeve through a movable ring seat, and the static ring is fixed on the circulating water sleeve; a compensation spring for compensation is arranged behind the static ring; an oil seal and a gland used for fixing the oil seal on the circulating water jacket are arranged behind the compensation spring; the oil seal is annular and is provided with a fracture; the gland is also formed by splicing a left part and a right part and is fastened by using bolts. The mechanical sealing device with the structure has the advantages that the oil seal and the oil seal gland are split, so that the leaked oil seal can be replaced on the premise of not disassembling the mechanical seal, the steps of replacing work are greatly reduced, the labor intensity of replacement is greatly reduced, the downtime is reduced, and the production efficiency is improved.
Description
Technical Field
The utility model relates to a mechanical seal device.
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. "
After the mechanical seal is installed on the pump, the gland or the like is exposed to the air. In the use process, once the oil seal leaks due to corrosion problems, the whole mechanical seal needs to be detached from the pump to replace the leaked oil seal. The whole process is very complicated, and time and labor are wasted.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a subdivision formula oil blanket gland mechanical seal need not to dismantle mechanical seal device from the pump and can carry out the change of oil blanket.
For solving the above technical problem, the technical scheme of the utility model is that: a split type oil seal mechanical gland comprises a shaft sleeve fixedly sleeved on a main shaft, and a movable ring and a stationary ring which are matched with each other for sealing; the movable ring is fixed with the shaft sleeve through a movable ring seat, and the static ring is fixed on the circulating water sleeve; a compensation spring for compensation is arranged behind the static ring; an oil seal and a gland used for fixing the oil seal on the circulating water jacket are arranged behind the compensation spring; the oil seal is annular and is provided with a fracture; the gland is also formed by splicing a left part and a right part and is fastened by using bolts.
As an improvement, the cross section of the gland is 7-shaped, and the oil seal is arranged in a cavity between the gland and the shaft sleeve.
As an improvement, the front end and the rear end of the compensating spring are provided with a front pushing ring and a rear pushing ring.
Preferably, an oil seal pressing plate is arranged between the push ring at the rear end of the compensating spring and the oil seal.
As an improvement, a gasket in a 7 shape is arranged at the junction of the gland and the circulating water jacket.
Preferably, the oil seal comprises an oil seal body and an elastic inner ring for pressing the oil seal body on the shaft sleeve.
The utility model discloses an useful part lies in: the mechanical sealing device with the structure has the advantages that the oil seal and the oil seal gland are split, so that the leaked oil seal can be replaced on the premise of not disassembling the mechanical seal, the steps of replacing work are greatly reduced, the labor intensity of replacing is greatly reduced, the downtime is reduced, and the production efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of an oil seal and an oil seal gland.
The labels in the figure are: the device comprises a shaft sleeve 1, a moving ring seat 2, a stationary ring seat 3, a push ring 4, a circulating water jacket 5, a compensating spring 6, a gasket 7, a push plate 8, an oil seal pressing plate 9, a pressing cover 10, an oil seal 11, a bolt 12, a stationary ring 13 and a moving ring 14.
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 and 2, the present invention comprises a shaft sleeve 1 fixedly sleeved on a main shaft, and a movable ring 14 and a stationary ring 13 which are mutually matched for sealing; the movable ring 14 is fixed with the shaft sleeve 1 through the movable ring seat 2, and the static ring 13 is fixed on the circulating water jacket 5; a compensation spring 6 for compensation is arranged behind the static ring 13; an oil seal 11 and a gland for fixing the oil seal 11 on the circulating water jacket 5 are arranged behind the compensating spring 6; the oil seal 11 is annular and is provided with a fracture; the gland 10 is also formed by splicing a left part and a right part and is fastened by bolts 12. The gland 10 is 7-shaped in section, and the oil seal 11 is arranged in a cavity between the gland 10 and the shaft sleeve 1. The oil seal 11 comprises an oil seal body and an elastic inner ring for pressing the oil seal body on the shaft sleeve 1.
The front end and the rear end of the compensating spring 6 are provided with a front pushing ring 4 and a rear pushing ring 8. An oil seal pressing plate 9 is arranged between the push ring 8 at the rear end of the compensating spring 6 and the oil seal 11. The interface of the gland 10 and the circulating water jacket 5 is provided with a gasket 7 in a shape of '7'.
During operation, the movable ring 14 and the static ring 13 are matched and sealed. When the oil seal 11 is corroded to generate leakage, the leaked oil seal 11 can be removed and replaced by only loosening the bolts 12 and removing the left and right parts of the gland 10 from the circulating water jacket 5. The new oil seal 11 is also provided with fractures, including the oil seal body and the elastic inner ring, and the fractures of the oil seal body and the elastic inner ring are staggered after installation. And (4) reassembling the gland 10 after the new oil seal 11 is assembled.
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 (6)
1. A split type oil seal mechanical gland comprises a shaft sleeve fixedly sleeved on a main shaft, and a movable ring and a stationary ring which are matched with each other for sealing; the movable ring is fixed with the shaft sleeve through a movable ring seat, and the static ring is fixed on the circulating water sleeve; a compensation spring for compensation is arranged behind the static ring; the method is characterized in that: an oil seal and a gland used for fixing the oil seal on the circulating water jacket are arranged behind the compensation spring; the oil seal is annular and is provided with a fracture; the gland is also formed by splicing a left part and a right part and is fastened by using bolts.
2. The split oil-seal mechanical gland seal of claim 1, wherein: the cross section of the gland is 7-shaped, and the oil seal is arranged in a cavity between the gland and the shaft sleeve.
3. The split oil-seal mechanical gland seal of claim 1, wherein: the front end and the rear end of the compensation spring are provided with a front pushing ring and a rear pushing ring.
4. A split oil-seal gland mechanical seal according to claim 3, wherein: an oil seal pressing plate is arranged between the push ring at the rear end of the compensating spring and the oil seal.
5. The split oil-seal mechanical gland seal of claim 1, wherein: and a 7-shaped gasket is arranged at the junction of the gland and the circulating water jacket.
6. The split oil-seal mechanical gland seal of claim 1, wherein: the oil seal comprises an oil seal body and an elastic inner ring used for pressing the oil seal body on the shaft sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021425998.7U CN212868451U (en) | 2020-07-20 | 2020-07-20 | Split oil seal gland mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021425998.7U CN212868451U (en) | 2020-07-20 | 2020-07-20 | Split oil seal gland mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212868451U true CN212868451U (en) | 2021-04-02 |
Family
ID=75215400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021425998.7U Active CN212868451U (en) | 2020-07-20 | 2020-07-20 | Split oil seal gland mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212868451U (en) |
-
2020
- 2020-07-20 CN CN202021425998.7U patent/CN212868451U/en active Active
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