CN216895769U - Mechanical sealing device - Google Patents
Mechanical sealing device Download PDFInfo
- Publication number
- CN216895769U CN216895769U CN202220788345.8U CN202220788345U CN216895769U CN 216895769 U CN216895769 U CN 216895769U CN 202220788345 U CN202220788345 U CN 202220788345U CN 216895769 U CN216895769 U CN 216895769U
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- CN
- China
- Prior art keywords
- ring
- gland
- movable ring
- shaft sleeve
- movable
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 38
- 210000004907 gland Anatomy 0.000 claims abstract description 30
- 230000003068 static effect Effects 0.000 claims abstract description 12
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model relates to the technical field of sealing devices, in particular to a mechanical sealing device, which mainly comprises a main shaft and a shaft sleeve and is characterized in that: the main shaft is provided with a main shaft sealing ring, the main shaft is provided with a shaft sleeve, the shaft sleeve is provided with a movable ring seat in interference fit, a movable ring seat sealing ring is arranged on the movable ring seat, a groove is arranged on the movable ring seat, a boss is arranged on the shaft sleeve, the two sides of the boss and the two sides of the groove are not mutually contacted, the top surface of the boss is mutually closely matched with the bottom surface of the groove, the movable ring seat is provided with a movable ring sealing ring and a movable ring, the shaft sleeve is provided with a gland, one side of the gland is provided with a push ring, a static ring which is tightly attached to the movable ring is arranged on the push ring, a static ring sealing ring is arranged between the static ring and the gland, the shaft sleeve is provided with an oil seal, the oil seal is arranged between the shaft sleeve and the gland through a positioning block and an inner hexagon screw, the shaft sleeve is provided with a driving ring, and the driving ring is fixed with the main shaft through an inner hexagonal set screw. The utility model discloses a mechanical seal device that can enough increase positioning accuracy and also can reduce the volume of revealing simultaneously is provided.
Description
Technical Field
The utility model relates to the technical field of sealing devices, in particular to a mechanical sealing device.
Background
Mechanical seals are commonly referred to as mechanical seals. The mechanical seal is a shaft seal device used in rotating shaft equipment, the equipment which is originally radial seal is changed into shaft end seal by people, the leakage of the equipment is greatly reduced, and the mechanical seal is widely applied in the fields of aerospace, petrochemical industry and the like.
For the existing mechanical sealing equipment, the shaft sleeve and the movable ring seat are welded together, so that the leakage amount is small, but the positioning precision of the shaft sleeve and the movable ring seat on the mechanical seal is reduced.
Disclosure of Invention
In order to solve the phenomenon, the utility model provides a mechanical sealing device which can increase the positioning precision and reduce the leakage amount.
The technical scheme provided by the utility model is as follows: a mechanical sealing device mainly comprises a main shaft and a shaft sleeve, wherein a main shaft sealing ring is arranged on the main shaft, the shaft sleeve is arranged on the main shaft, a movable ring seat is arranged on the shaft sleeve through interference fit, a movable ring seat sealing ring is arranged on the movable ring seat, a groove is arranged on the movable ring seat, a boss is arranged on the shaft sleeve, two sides of the boss and two sides of the groove are not in mutual contact, the top surface of the boss and the bottom surface of the groove are in mutual close fit, a movable ring sealing ring and a movable ring are arranged on the movable ring seat, a gland is arranged on the shaft sleeve, a push ring is arranged on one side of the gland, a static ring which is in close fit with the movable ring is arranged on the push ring, a static ring sealing ring is arranged between the static ring and the gland, an oil seal is arranged on the shaft sleeve, the oil seal is arranged between the shaft sleeve and the gland through a positioning block and an inner hexagon screw, a driving ring is arranged on the shaft sleeve, the driving ring is fixed with the main shaft through a hexagon socket set screw.
Furthermore, the height of the boss and the depth of the groove are distributed in a step-shaped manner along the radial direction and gradually increase.
Furthermore, a gland sealing ring and an outer hexagon screw are arranged on the gland.
Further, a spring is arranged between the gland and the push ring.
Furthermore, a guide pin is arranged among the gland, the push ring and the stationary ring.
Furthermore, the movable ring is fixed on the movable ring seat through a positioning pin.
This utility model has the following beneficial effects:
this utility model has simple structure. This mechanical seal device has given up traditional welded connection mode in axle sleeve and rotating ring seat junction, adopt interference fit to connect the positioning accuracy who has increased mechanical seal, the rotating ring seat sealing washer has been seted up on the rotating ring seat, the recess has been seted up on the rotating ring seat, the boss has been seted up on the axle sleeve, the both sides of boss and the both sides of recess are all contactless each other, the top surface of boss pastes tight cooperation with the bottom surface of recess each other, the cooperation of boss and recess is equivalent to a miniature labyrinth seal, the existence of rotating ring seat sealing washer and miniature labyrinth seal can reduce mechanical seal's leakage volume greatly.
Drawings
FIG. 1 is a block diagram of a mechanical seal according to the present invention;
FIG. 2 is an enlarged view of section A of a mechanical seal of the present invention;
marking in the drawing: 1. the device comprises a driving ring, 2, an oil seal, 3, a spring, 4, a push ring, 5, a static ring sealing ring, 6, a static ring, 7, a moving ring, 8, a moving ring sealing ring, 9, a moving ring seat, 10, a moving ring seat sealing ring, 11, a shaft sleeve, 12, a main shaft sealing ring, 13, a positioning pin, 14, a guide pin, 15, a gland, 16, a gland sealing ring, 17, an outer hexagonal screw, 18, an inner hexagonal screw, 19, a positioning block, 20, a main shaft, 21, a boss, 22, a groove, 23 and an inner hexagonal set screw.
Detailed Description
The utility model will be further explained with reference to the drawings.
In order to solve the problem that can improve mechanical seal positioning accuracy, reduce the leakage simultaneously again, this utility model provides a mechanical seal device.
As shown in fig. 1 to 2, a mechanical sealing device mainly includes a main shaft and a shaft sleeve, a main shaft sealing ring is arranged on the main shaft 20, the main shaft 20 is provided with the shaft sleeve 11, the shaft sleeve 11 is provided with a movable ring seat 9 through interference fit, the movable ring seat 9 is provided with a movable ring seat sealing ring 12, the movable ring seat 9 is provided with a groove 22, the shaft sleeve 11 is provided with a boss 21, both sides of the boss 21 and both sides of the groove 22 are not in mutual contact, the top surface of the boss 21 and the bottom surface of the groove 22 are in mutual close fit, the movable ring seat 9 is provided with a movable ring sealing ring 8 and a movable ring 7, the shaft sleeve 11 is provided with a gland 15, one side of the gland 15 is provided with a push ring 4, the push ring 4 is provided with a stationary ring 6 tightly attached to the movable ring 7, a stationary ring sealing ring 5 is arranged between the stationary ring 6 and the gland 15, the shaft sleeve 11 is provided with an oil seal 2, the oil seal 2 is arranged between a shaft sleeve 11 and a gland 15 through a positioning block 19 and an inner hexagonal screw 18, a driving ring 1 is arranged on the shaft sleeve 11, and the driving ring 1 is fixed with a main shaft 20 through an inner hexagonal set screw 23.
Further, the heights of the bosses 21 and the depths of the grooves 22 are distributed in a stepped manner along the radial direction and gradually increase.
Further, a gland sealing ring 16 and an outer hexagon screw 17 are arranged on the gland 15.
Further, a spring 3 is arranged between the gland 15 and the push ring 4.
Further, a guide pin 14 is arranged among the gland 15, the push ring 4 and the stationary ring 6.
Further, the movable ring 7 is fixed on the movable ring seat 9 through a positioning pin 13.
This utility model has the following beneficial effects:
this utility model has simple structure. This mechanical seal device has given up traditional welded connection mode in axle sleeve 11 and rotating ring seat 9 junction, adopt interference fit to connect the positioning accuracy who has increased mechanical seal, rotating ring seat sealing washer 10 has been seted up on rotating ring seat 9, recess 22 has been seted up on rotating ring seat 9, boss 21 has been seted up on axle sleeve 11, the both sides of boss 21 and recess 22's both sides are all contactless each other, the top surface of boss 21 pastes tight cooperation each other with recess 22's bottom surface, boss 21 and recess 22's cooperation is equivalent to a miniature labyrinth seal, rotating ring seat sealing washer 10 and miniature labyrinth seal's existence can reduce mechanical seal's the volume of revealing greatly.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. The utility model provides a mechanical seal device, mainly includes main shaft, axle sleeve, its characterized in that: the improved spindle is characterized in that a spindle sealing ring is arranged on the spindle (20), a spindle sleeve (11) is arranged on the spindle (20), a movable ring seat (9) is arranged on the spindle sleeve (11) through interference fit, a movable ring seat sealing ring (12) is arranged on the movable ring seat (9), a groove (22) is formed in the movable ring seat (9), a boss (21) is formed in the spindle sleeve (11), the two sides of the boss (21) and the two sides of the groove (22) are not in mutual contact, the top surface of the boss (21) and the bottom surface of the groove (22) are mutually attached and tightly matched, a movable ring sealing ring (8) and a movable ring (7) are arranged on the movable ring seat (9), a gland (15) is arranged on the spindle sleeve (11), a push ring (4) is arranged on one side of the gland (15), a static ring (6) tightly attached to the movable ring (7) is arranged on the push ring (4), and a static ring sealing ring (5) is arranged between the static ring (6) and the gland (15), the oil seal structure is characterized in that an oil seal (2) is mounted on the shaft sleeve (11), the oil seal (2) is mounted between the shaft sleeve (11) and the gland (15) through a positioning block (19) and an inner hexagonal screw (18), a driving ring (1) is arranged on the shaft sleeve (11), and the driving ring (1) is fixed with a main shaft (20) through an inner hexagonal set screw (23).
2. A mechanical seal according to claim 1, wherein: the height of the boss (21) and the depth of the groove (22) are distributed in a stepped mode along the radial direction and gradually increase.
3. A mechanical seal according to claim 1, wherein: and a gland sealing ring (16) and an outer hexagonal screw (17) are arranged on the gland (15).
4. A mechanical seal according to claim 1, wherein: and a spring (3) is arranged between the gland (15) and the push ring (4).
5. A mechanical seal according to claim 1, wherein: and guide pins (14) are arranged among the gland (15), the push ring (4) and the static ring (6).
6. A mechanical seal according to claim 1, wherein: the movable ring (7) is fixed on the movable ring seat (9) through a positioning pin (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220788345.8U CN216895769U (en) | 2022-04-07 | 2022-04-07 | Mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220788345.8U CN216895769U (en) | 2022-04-07 | 2022-04-07 | Mechanical sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216895769U true CN216895769U (en) | 2022-07-05 |
Family
ID=82193327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220788345.8U Expired - Fee Related CN216895769U (en) | 2022-04-07 | 2022-04-07 | Mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216895769U (en) |
-
2022
- 2022-04-07 CN CN202220788345.8U patent/CN216895769U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220705 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |