CN208966600U - A kind of multistage centrifugal mechanical sealing device used for pump - Google Patents
A kind of multistage centrifugal mechanical sealing device used for pump Download PDFInfo
- Publication number
- CN208966600U CN208966600U CN201821701303.6U CN201821701303U CN208966600U CN 208966600 U CN208966600 U CN 208966600U CN 201821701303 U CN201821701303 U CN 201821701303U CN 208966600 U CN208966600 U CN 208966600U
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- Prior art keywords
- ring
- gland
- rotating
- axle sleeve
- sealing device
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Abstract
The utility model discloses a kind of multistage centrifugal mechanical sealing device used for pump, including pump shaft, the axle sleeve being set on the outside of pump shaft, mutually matched static components and moving ring assembly, static components include gland, the stationary ring in gland and the gasket for stopping gland to deviate, moving ring assembly includes rotating ring, rotating seat, spring, check ring, one end of pump shaft is equipped with drive ring, and the end of gland is equipped with locating piece.The utility model compared with prior art the advantages of be: packaging type structure, installation is simple, conveniently, effectively overcomes leakage problem of the existing technology, improves sealing performance and service life；In addition, the spring for applying thrust to rotating ring uses multiple uniformly distributed springs, sealing surface stress can be made more evenly in this way, improve grinding effect；It can automatic tracking and compensating after end wear；Equipment generates axial float in starting, shutdown, and multiple uniformly distributed springs of big stroke can ensure that seal face fits closely always, and vertical with rotary shaft.
Description
Technical field
The utility model relates to centrifugal pump sealing device technical field, in particular to a kind of multistage centrifugal mechanical seal for pump
Device.
Background technique
The mechanical sealing technology of the prior art is starting, is stopping since axial force in multi-stage centrifugal pump is balanced by balancing frame
It is influenced when only by medium buckling, the axial float of equipment, vibration are larger.Single big spring mechanical seal spring stress is uneven
Even, spring is exposed periodically to be leaked frequent occurrence when medium is easy blocking, installation maintenance difficulty etc., equipment is caused to run.
Utility model content
The technical problems to be solved in the utility model is to overcome the defect of above-mentioned technology, provides a kind of centrifugal multistage pump multiple centrifugal pump machine
Tool sealing device reduces seal failure caused by axial float, vibration and damages, and improves sealing service performance；Simplify installation procedure,
It reduces maintenance difficulties, reduce Maintenance and Repair workload.
In order to solve the above technical problems, technical solution provided by the utility model are as follows: a kind of centrifugal multistage pump multiple centrifugal pump is mechanical close
Seal apparatus, including pump shaft, the axle sleeve being set on the outside of pump shaft, mutually matched static components and moving ring assembly, the stationary ring group
Part includes gland, the stationary ring in gland and the gasket for stopping gland to deviate, and the stationary ring is socketed in the outer of axle sleeve
On peripheral wall, the stationary ring is connect with gland slip, and the moving ring assembly includes rotating ring, rotating seat, spring, check ring, described
Rotating seat is socketed on the periphery wall of axle sleeve, and the rotating ring is arranged in rotating seat, one end of the rotating ring and the end face of stationary ring
Fitting, the other end holddown spring retaining ring and spring of the rotating ring, the spring is withstood between check ring and rotating seat, described
Gasket is arranged between rotating seat and gland, and one end of the pump shaft is equipped with drive ring, and the end of the gland is equipped with locating piece,
One end of the locating piece is fixed with drive ring, and the other end and the gland of the locating piece are fixed, and the drive ring passes through positioning
Block limits gland.
As an improvement, the drive ring, by driving screw to be fixed on axle sleeve, the rotating ring passes through rotating ring holding screw
It is fixed on axle sleeve, the locating piece is fixed on drive ring by hexagon socket cap head screw.
As an improvement, one end of the axle sleeve is equipped with annular groove, axle sleeve O-ring, the rotating ring are equipped in the annular groove
It is equipped with rotating ring O-ring between axle sleeve, stationary ring O-ring is equipped between the stationary ring and gland.
As an improvement, the spring is equipped with 9.
As an improvement, the locating piece is equipped with 3.
As an improvement, the gasket is anhydrous cotton paper pad.
The utility model compared with prior art the advantages of be: packaging type structure, installation is simple, conveniently, effectively overcomes
Leakage problem of the existing technology improves sealing performance and service life；In addition, the spring for applying thrust to rotating ring uses
Multiple uniformly distributed springs, can make sealing surface stress more evenly in this way, improve grinding effect；Benefit can be automatically tracked after end wear
It repays；Equipment generates axial float in starting, shutdown, and multiple uniformly distributed springs of big stroke can ensure that seal face closely pastes always
It closes, and vertical with rotary shaft.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of multistage centrifugal mechanical sealing device used for pump of the utility model.
Fig. 2 is a kind of top view of multistage centrifugal mechanical sealing device used for pump of the utility model.
1, drive ring, 2, hexagon socket cap head screw, 3, locating piece, 4, gland, 5, stationary ring O-ring, 6, gasket, 7, rotating ring
O-ring, 8, check ring, 9, spring, 10, rotating seat, 11, axle sleeve, 12, axle sleeve O-ring, 13, rotating ring holding screw, 14, dynamic
Ring, 15, stationary ring, 16, driving screw.
Specific embodiment
A kind of multistage centrifugal mechanical sealing device used for pump of the utility model is done further specifically with reference to the accompanying drawing
It is bright.
In conjunction with attached drawing, a kind of multistage centrifugal mechanical sealing device used for pump, including pump shaft, the axle sleeve being set on the outside of pump shaft
11, mutually matched static components and moving ring assembly, static components include gland 4, the stationary ring 15 in gland 4 and are used to
The gasket 6 for stopping gland 4 to deviate, stationary ring 15 are socketed on the periphery wall of axle sleeve 11, and stationary ring 15 is slidably connected with gland 4, rotating ring
Component includes rotating ring 14, rotating seat 10, spring 9, check ring 8, and rotating seat 10 is socketed on the periphery wall of axle sleeve 11, rotating ring 14
It is arranged in rotating seat 10, one end of rotating ring 14 is bonded with the end face of stationary ring 15,8 He of other end holddown spring retaining ring of rotating ring 14
Spring 9, spring 9 are withstood between check ring 8 and rotating seat 10, and gasket 6 is arranged between rotating seat 10 and gland 4, pump shaft
One end is equipped with drive ring 1, and the end of gland 4 is equipped with locating piece 3, and one end of locating piece 3 and drive ring 1 are fixed, locating piece 3 it is another
One end and gland 4 are fixed, and drive ring 1 limits gland 4 by locating piece 3, and drive ring 1 is by driving screw 16 to be fixed on
On axle sleeve 11, rotating ring 14 is fixed on axle sleeve 11 by rotating ring holding screw 13, and locating piece 3 passes through hexagon socket cap head screw 2
It is fixed on drive ring 1, one end of axle sleeve 11 is equipped with annular groove, is equipped with axle sleeve O-ring 12, rotating ring 14 and axle sleeve 11 in annular groove
Between be equipped with rotating ring O-ring 7, between stationary ring 15 and gland 4 be equipped with stationary ring O-ring 5, spring 9 be equipped with 9, locating piece 3 be equipped with 3
A, gasket 6 is anhydrous cotton paper pad.
The utility model in the specific implementation, stationary ring O-ring is placed in gland, stationary ring is put into gland, by bullet
Spring screws in rotating seat, and rotating ring O-ring is placed in rotating ring groove by check ring garter spring, and rotating ring is inserted into rotating seat, axis
In set insertion rotating seat, it is partially placed into assembled in gland, the front end of axle sleeve is fixed by locating piece and drive ring, rotating ring
It is in contact with stationary ring.By a pair perpendicular to rotation axis seal face under the action of Fluid pressure and compensation mechanism elastic force with
And keep fitting closely under the cooperation of auxiliary seal and slide relatively, prevent the medium sealed by leaking between sealing surface.
The utility model and embodiments thereof are described above, this description is no restricted, shown in attached drawing
Be also one of the embodiments of the present invention, actual structure is not limited to this.All in all if this field
Those of ordinary skill is enlightened by it, without deviating from the purpose of the present invention, not inventively design with
The similar frame mode of the technical solution and embodiment, all should belong to the protection range of the utility model.
Claims (6)
1. a kind of multistage centrifugal mechanical sealing device used for pump including pump shaft, the axle sleeve being set on the outside of pump shaft (11), cooperates
Static components and moving ring assembly, it is characterised in that: the static components include gland (4), the stationary ring in gland (4)
(15) and the gasket (6) for stopping gland (4) to deviate, the stationary ring (15) are socketed on the periphery wall of axle sleeve (11), institute
It states stationary ring (15) to be slidably connected with gland (4), the moving ring assembly includes rotating ring (14), rotating seat (10), spring (9), spring
Retaining ring (8), the rotating seat (10) are socketed on the periphery wall of axle sleeve (11), and the rotating ring (14) is arranged in rotating seat (10)
Interior, one end of the rotating ring (14) is bonded with the end face of stationary ring (15), the other end holddown spring retaining ring (8) of the rotating ring (14)
With spring (9), the spring (9) is withstood between check ring (8) and rotating seat (10), and the gasket (6) is arranged in rotating seat
(10) between gland (4), one end of the pump shaft is equipped with drive ring (1), and the end of the gland (4) is equipped with locating piece (3),
One end and drive ring (1) of the locating piece (3) are fixed, and the other end of the locating piece (3) and gland (4) are fixed, the drive
Rotating ring (1) limits gland (4) by locating piece (3).
2. a kind of multistage centrifugal mechanical sealing device used for pump according to claim 1, it is characterised in that: the drive ring
(1) by driving screw (16) to be fixed on axle sleeve (11), the rotating ring (14) is fixed on axis by rotating ring holding screw (13)
It covers on (11), the locating piece (3) is fixed on drive ring (1) by hexagon socket cap head screw (2).
3. a kind of multistage centrifugal mechanical sealing device used for pump according to claim 1, it is characterised in that: the axle sleeve (11)
One end be equipped with annular groove, be equipped with axle sleeve O-ring (12) in the annular groove, be equipped between the rotating ring (14) and axle sleeve (11)
Rotating ring O-ring (7) is equipped with stationary ring O-ring (5) between the stationary ring (15) and gland (4).
4. a kind of multistage centrifugal mechanical sealing device used for pump according to claim 1, it is characterised in that: the spring (9)
Equipped with 9.
5. a kind of multistage centrifugal mechanical sealing device used for pump according to claim 1, it is characterised in that: the locating piece
(3) 3 are equipped with.
6. a kind of multistage centrifugal mechanical sealing device used for pump according to claim 1, it is characterised in that: the gasket (6)
For anhydrous cotton paper pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821701303.6U CN208966600U (en) | 2018-10-19 | 2018-10-19 | A kind of multistage centrifugal mechanical sealing device used for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821701303.6U CN208966600U (en) | 2018-10-19 | 2018-10-19 | A kind of multistage centrifugal mechanical sealing device used for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208966600U true CN208966600U (en) | 2019-06-11 |
Family
ID=66759756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821701303.6U Active CN208966600U (en) | 2018-10-19 | 2018-10-19 | A kind of multistage centrifugal mechanical sealing device used for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208966600U (en) |
-
2018
- 2018-10-19 CN CN201821701303.6U patent/CN208966600U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 511400 No.1 South row, Youzhan Road, Longqi village, Shawan Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: Guangdong kaililai Electrical Machinery Co.,Ltd. Address before: 511400 No.1 South row, Youzhan Road, Longqi village, Shawan Town, Panyu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU KAILILAI ELECTRIC MACHINERY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |