CN215334464U - Mechanical sealing device suitable for small radial dimension occasion - Google Patents
Mechanical sealing device suitable for small radial dimension occasion Download PDFInfo
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- CN215334464U CN215334464U CN202121031415.7U CN202121031415U CN215334464U CN 215334464 U CN215334464 U CN 215334464U CN 202121031415 U CN202121031415 U CN 202121031415U CN 215334464 U CN215334464 U CN 215334464U
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Abstract
The utility model relates to a mechanical sealing device suitable for occasions with small radial dimension, which comprises: the shaft, axle sleeve, first rotating ring, first quiet ring, first spring mechanism, clamp plate, gland, uide bushing, rotating ring seat, second rotating ring, second quiet ring, second spring mechanism and drive ring, form first sealed face between first rotating ring and the first quiet ring, first spring mechanism includes: the first spring seat is abutted with one end of the first spring, the other end of the first spring is abutted with the guide sleeve, the first spring seat is abutted with the first stationary ring, a second sealing surface is formed between the second movable ring and the second stationary ring, the second spring mechanism comprises a second push ring and a second spring, one end of the second spring is abutted with the gland, the other end of the second spring is abutted with the second push ring, and the second push ring is abutted with the second stationary ring, so that the second spring mechanism is applicable to small radial size occasions.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to the field of mechanical sealing, in particular to a mechanical sealing device suitable for occasions with small radial sizes.
[ background of the utility model ]
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 mechanical sealing device in the prior art is complex in structure, so that the radial size of the mechanical sealing device is large, and the mechanical sealing device is not suitable for occasions with small radial sizes.
Therefore, it is necessary to provide a mechanical seal device suitable for a small radial size occasion, which solves the above-mentioned technical problems.
[ Utility model ] content
In order to solve the above problems, an object of the present invention is to provide a mechanical seal device suitable for a small radial dimension.
In order to achieve the purpose, the utility model adopts the technical scheme that: a mechanical seal adapted for use in small radial dimension applications, comprising: the shaft sleeve is sleeved on the shaft, the first movable ring is installed in the shaft sleeve, a first sealing surface is formed between the first movable ring and the first stationary ring, and the first spring mechanism comprises: the first spring seat and the first spring, one end of the first spring is abutted against the first spring seat, the other end of the first spring is abutted against the guide sleeve, the first spring seat is abutted against the first stationary ring, the pressing plate is arranged on the outer side of the first stationary ring and the first spring mechanism, the movable ring seat is sleeved on the shaft sleeve, the second movable ring is arranged in the movable ring seat, a first push ring and a first snap ring are arranged between the second movable ring and the movable ring seat, a second sealing surface is formed between the second movable ring and the second stationary ring, the second spring mechanism comprises a second push ring and a second spring, one end of the second spring is abutted against the pressing cover, the other end of the second spring is abutted against the second push ring, the second push ring is abutted against the second stationary ring, the driving ring is arranged on one side of the second stationary ring, and the driving ring is connected with the shaft sleeve through a fixing member, and the gland is provided with a spacer fluid inlet channel and a spacer fluid outlet channel, and the spacer fluid inlet channel and the spacer fluid outlet channel are respectively communicated with the first sealing surface and the second sealing surface.
Preferably, a mechanical sealing device suitable for small radial dimension in the present invention is further configured as follows: the sealing device is characterized in that a shaft sleeve sealing ring is arranged between the shaft sleeve and the shaft, a first moving ring sealing ring is arranged between the first moving ring and the shaft sleeve, a first stationary ring sealing ring is arranged between the first stationary ring and the pressing plate, a pressing plate sealing ring is arranged between the pressing plate and the pressing cover, a moving ring seat sealing ring is arranged between the moving ring seat and the shaft sleeve, a second moving ring sealing ring is arranged between the second moving ring and the moving ring seat, and a second stationary ring sealing ring is arranged between the second stationary ring and the pressing cover.
Preferably, a mechanical sealing device suitable for small radial dimension in the present invention is further configured as follows: the shaft sleeve sealing ring, the first movable ring sealing ring, the first static ring sealing ring, the pressure plate sealing ring, the movable ring seat sealing ring, the second movable ring sealing ring and the second static ring sealing ring are all O-shaped rings.
Preferably, a mechanical sealing device suitable for small radial dimension in the present invention is further configured as follows: the fixing piece is an inner hexagonal socket head cap screw.
Preferably, a mechanical sealing device suitable for small radial dimension in the present invention is further configured as follows: and a second clamping ring is arranged between the pressing plate and the pressing cover.
Preferably, a mechanical sealing device suitable for small radial dimension in the present invention is further configured as follows: one side of the driving ring is provided with a mounting sheet, and the shaft sleeve is provided with a channel matched with the mounting sheet.
Compared with the prior art, the utility model has the following beneficial effects: the mechanical sealing device is simple in structure and convenient to install, is suitable for occasions with small radial sizes due to the small overall radial size, and is provided with two sets of static rings and moving rings, so that the sealing performance is greatly improved.
[ description of the drawings ]
Fig. 1 is a schematic sectional view of a mechanical seal device according to the present invention.
In fig. 1: 1. shaft, 2, shaft sleeve, 20, shaft sleeve seal ring, 21, channel, 3, first rotating ring, 30, first sealing surface, 31, first rotating ring seal ring, 4, first stationary ring, 40, first stationary ring seal ring, 5, first spring mechanism, 50, first spring seat, 51, first spring, 6, pressure plate, 60, pressure plate seal ring, 7, gland, 70, buffer fluid inlet channel, 8, guide sleeve, 9, rotating ring seat, 90, rotating ring seat seal ring, 10, second rotating ring, 100, second sealing surface, 101, second rotating ring seal ring, 11, second stationary ring, 110, second stationary ring seal ring, 12, second spring mechanism, 120, second push ring, 121, second spring, 13, drive ring, 130, stationary member, 14, first push ring, 15, first snap ring, 16, second snap ring, 17, mounting plate.
[ detailed description ] embodiments
A mechanical seal device suitable for small radial dimension applications according to the present invention is further described in detail with reference to the following embodiments.
Referring to fig. 1, a mechanical seal device suitable for small radial dimension applications includes: the shaft comprises a shaft 1, a shaft sleeve 2, a first movable ring 3, a first stationary ring 4, a first spring mechanism 5, a pressure plate 6, a gland 7, a guide sleeve 8, a movable ring seat 9, a second movable ring 10, a second stationary ring 11, a second spring mechanism 12 and a driving ring 13, wherein a mounting piece 17 is arranged on one side of the driving ring, and the shaft sleeve 2 is provided with a channel 21 matched with the mounting piece 17.
The shaft sleeve 2 is sleeved on the shaft 1, the first movable ring 3 is installed in the shaft sleeve 2, a first sealing surface 30 is formed between the first movable ring 3 and the first stationary ring 4, and the first spring mechanism 5 comprises: first spring holder 50 and first spring 51, the one end and the first spring holder 50 looks butt of first spring 51, the other end and the 8 looks butts of uide bushing of first spring 51, first spring holder 50 and first quiet ring 4 looks butt, clamp plate 6 sets up in the outside of first quiet ring 4 and first spring mechanism 5, axle sleeve 2 is located to the cover of rotating ring seat 9, the second rotating ring 10 sets up in rotating ring seat 9, be equipped with first throw-out collar 14 and first snap ring 15 between second rotating ring 10 and the rotating ring seat 9, be equipped with second snap ring 16 between clamp plate 6 and the gland 7. A second sealing surface 100 is formed between the second movable ring 10 and the second stationary ring 11, the second spring mechanism 12 includes a second push ring 120 and a second spring 121, one end of the second spring 121 abuts against the gland 7, the other end of the second spring 121 abuts against the second push ring 120, the second push ring 120 abuts against the second stationary ring 11, the driving ring 13 is disposed on one side of the second stationary ring 11, the driving ring 13 is connected to the shaft sleeve 2 through a fixing member 130, and in this embodiment, the fixing member 130 is an inner hexagonal socket head screw. The gland 7 is provided with a barrier fluid inlet channel 70 and a barrier fluid outlet channel (not shown), and the barrier fluid inlet channel 70 and the barrier fluid outlet channel are respectively communicated with the first sealing surface 30 and the second sealing surface 100.
Be equipped with axle sleeve sealing washer 20 between axle sleeve 2 and the axle 1, be equipped with first rotating ring sealing washer 31 between first rotating ring 3 and the axle sleeve 2, be equipped with first quiet ring sealing washer 40 between first quiet ring 4 and the clamp plate 6, be equipped with clamp plate sealing washer 60 between clamp plate 6 and the gland 7, be equipped with rotating ring seat sealing washer 90 between rotating ring seat 9 and the axle sleeve 2, be equipped with second rotating ring sealing washer 101 between second rotating ring 10 and the rotating ring seat 9, be equipped with second quiet ring sealing washer 110 between second quiet ring 11 and the gland 7, in this embodiment, axle sleeve sealing washer 20, first rotating ring sealing washer 31, first quiet ring sealing washer 40, clamp plate sealing washer 60, rotating ring seat sealing washer 90, second rotating ring sealing washer 101 and second quiet ring sealing washer 110 are O type circle.
The working principle of the mechanical sealing device is as follows: the driving ring 13 drives the shaft 1 and the shaft sleeve 2 to rotate, so as to drive the first movable ring 3, the movable ring seat 9 and the second movable ring 10 to rotate, the first stationary ring 4, the first spring mechanism 5, the second stationary ring 11, the second spring mechanism 12, the pressure plate 6, the gland 7 and the guide sleeve 8 are stationary members, a first sealing surface 30 is formed between the first movable ring 3 and the first stationary ring 4, a second sealing surface 100 is formed between the second movable ring 10 and the second stationary ring 11, the first spring mechanism 5 can compensate the first sealing surface 30, the second spring mechanism 12 can compensate the second sealing surface 100, the isolation liquid enters from the isolation liquid inlet channel 70 and exits from the isolation liquid outlet channel, and the isolation liquid can cool and flush the first sealing surface 30 and the second sealing surface 100.
In conclusion, the mechanical sealing device is simple in structure and convenient to install, is suitable for occasions with small radial sizes due to the small overall radial size, and is provided with two sets of static rings and dynamic rings, so that the sealing performance is greatly improved.
The above-mentioned embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be used, not restrictive; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.
Claims (6)
1. A mechanical seal device suitable for small radial dimension occasion which characterized in that: the method comprises the following steps: the shaft sleeve is sleeved on the shaft, the first movable ring is installed in the shaft sleeve, a first sealing surface is formed between the first movable ring and the first stationary ring, and the first spring mechanism comprises: the first spring seat and the first spring, one end of the first spring is abutted against the first spring seat, the other end of the first spring is abutted against the guide sleeve, the first spring seat is abutted against the first stationary ring, the pressing plate is arranged on the outer side of the first stationary ring and the first spring mechanism, the movable ring seat is sleeved on the shaft sleeve, the second movable ring is arranged in the movable ring seat, a first push ring and a first snap ring are arranged between the second movable ring and the movable ring seat, a second sealing surface is formed between the second movable ring and the second stationary ring, the second spring mechanism comprises a second push ring and a second spring, one end of the second spring is abutted against the pressing cover, the other end of the second spring is abutted against the second push ring, the second push ring is abutted against the second stationary ring, the driving ring is arranged on one side of the second stationary ring, and the driving ring is connected with the shaft sleeve through a fixing member, and the gland is provided with a spacer fluid inlet channel and a spacer fluid outlet channel, and the spacer fluid inlet channel and the spacer fluid outlet channel are respectively communicated with the first sealing surface and the second sealing surface.
2. A mechanical seal adapted for use in small radial dimension applications as claimed in claim 1 wherein: the sealing device is characterized in that a shaft sleeve sealing ring is arranged between the shaft sleeve and the shaft, a first moving ring sealing ring is arranged between the first moving ring and the shaft sleeve, a first stationary ring sealing ring is arranged between the first stationary ring and the pressing plate, a pressing plate sealing ring is arranged between the pressing plate and the pressing cover, a moving ring seat sealing ring is arranged between the moving ring seat and the shaft sleeve, a second moving ring sealing ring is arranged between the second moving ring and the moving ring seat, and a second stationary ring sealing ring is arranged between the second stationary ring and the pressing cover.
3. A mechanical seal adapted for use in small radial dimension applications as claimed in claim 2 wherein: the shaft sleeve sealing ring, the first movable ring sealing ring, the first static ring sealing ring, the pressure plate sealing ring, the movable ring seat sealing ring, the second movable ring sealing ring and the second static ring sealing ring are all O-shaped rings.
4. A mechanical seal adapted for use in small radial dimension applications as claimed in claim 1 wherein: the fixing piece is an inner hexagonal socket head cap screw.
5. A mechanical seal adapted for use in small radial dimension applications as claimed in claim 1 wherein: and a second clamping ring is arranged between the pressing plate and the pressing cover.
6. A mechanical seal adapted for use in small radial dimension applications as claimed in claim 1 wherein: one side of the driving ring is provided with a mounting sheet, and the shaft sleeve is provided with a channel matched with the mounting sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121031415.7U CN215334464U (en) | 2021-05-14 | 2021-05-14 | Mechanical sealing device suitable for small radial dimension occasion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121031415.7U CN215334464U (en) | 2021-05-14 | 2021-05-14 | Mechanical sealing device suitable for small radial dimension occasion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215334464U true CN215334464U (en) | 2021-12-28 |
Family
ID=79546053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121031415.7U Active CN215334464U (en) | 2021-05-14 | 2021-05-14 | Mechanical sealing device suitable for small radial dimension occasion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215334464U (en) |
-
2021
- 2021-05-14 CN CN202121031415.7U patent/CN215334464U/en active Active
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