CN207539079U - A kind of mechanical seal - Google Patents
A kind of mechanical seal Download PDFInfo
- Publication number
- CN207539079U CN207539079U CN201721521661.4U CN201721521661U CN207539079U CN 207539079 U CN207539079 U CN 207539079U CN 201721521661 U CN201721521661 U CN 201721521661U CN 207539079 U CN207539079 U CN 207539079U
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- Prior art keywords
- ring
- stationary
- rotating
- mechanical seal
- seat
- Prior art date
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- Mechanical Sealing (AREA)
Abstract
The utility model discloses a kind of mechanical seals, including moving ring assembly and static components, the moving ring assembly includes symmetrically arranged two rotating seats and two rotating rings, it is offered on the opposite end face of two rotating seats for the mounting groove for rotating ring insertion, the material of the rotating ring is aluminium oxide ceramics, the static components include symmetrically arranged two stationary rings, two stationary rings are located at the both ends of moving ring assembly respectively, the material of two stationary rings is carbon graphite, the end face of the rotating ring and the end face of stationary ring abut, its key points of the technical solution are that the service life of the mechanical seal is longer, better performances, it is not easy occur Seepage at mechanical seal using the water pump of the mechanical seal.
Description
Technical field
The utility model is related to water pump technical field of sealing technology, more particularly to a kind of mechanical seal.
Background technology
The equipment such as water pump, since transmission shaft is applied in inside and outside equipment, there are a circumferential clearance, equipment between axis and equipment
In medium leaked out by the gap, if pressure subatmospheric in equipment, air, therefore must to equipment internal leakage
There are one the gland seal devices for preventing leakage for palpus.Since mechanical seal has many advantages, such as that leakage rate is few and long lifespan, so mechanical close
Envelope is the most important sealing mode of these equipment.
Existing notification number is that the split type two-sided machinery that the Chinese patent of CN2709685Y is disclosed on a kind of immersible pump is close
Seal apparatus, including metallic support, rubber seal, dynamic grinding block, static grinding block, rubber seal and dynamic grinding block are mounted on metallic support
Groove in, metallic support, rubber seal, dynamic grinding block, static grinding block are sleeved on pump shaft, and dynamic grinding block is opposite with static grinding block
End face phase mutual friction and form sealing.
But the material of existing dynamic grinding block and static grinding block is usually rubber, the wearability of rubber is bad, then dynamic grinding block with
More easy to wear during static grinding block phase mutual friction, service life is shorter.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of mechanical seal, service life
It is longer.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of mechanical seal, packet
Moving ring assembly and static components are included, the moving ring assembly includes symmetrically arranged two rotating seats and two rotating rings, two rotating rings
It is offered on the opposite end face of seat for the mounting groove for rotating ring insertion, the material of the rotating ring is aluminium oxide ceramics, described
Static components include symmetrically arranged two stationary rings, and two stationary rings are located at the both ends of moving ring assembly respectively, and two described quiet
The material of ring is carbon graphite, and the end face of the rotating ring and the end face of stationary ring abut.
Through the above technical solutions, when the mechanical seal is mounted in the pump housing, rotating seat, rotating ring and stationary ring are sleeved on pump
On axis, and two stationary rings are packed on the pump housing in corresponding mounting hole, sealing are formed between pump shaft and rotating ring, pump shaft rotation can band
Dynamic rotating ring rotation, and stationary ring is fixedly mounted on the pump housing, then rotating ring and the opposite end face phase mutual friction of stationary ring and form sealing.Oxygen
Changing the rotating ring of aluminium ceramic material has a higher wear-resisting property, and the stationary ring of carbon graphite material has good corrosion resistance, low
Friction coefficient, and the self lubricity of graphite is good, can substantially reduce frictional resistance between the two, phase is not easy between rotating ring and stationary ring
Mutually abrasion, the service life of this mechanical seal are longer.
Preferably, be provided with auxiliary seal in the mounting groove, the auxiliary seal include positioned at rotating seat and rotating ring it
Between sealing and the mounting portion across rotating seat, the internal ring wall of the mounting portion be bonded with pump shaft, the auxiliary seal
Material is rubber.
Through the above technical solutions, the auxiliary seal of rubber material is flexibility, it can prevent water from passing through to a certain extent dynamic
Fit clearance between ring seat and rotating ring leaks out, and the internal ring wall of mounting portion is bonded with pump shaft, mounting portion and pump shaft it
Between form sealing, sealed instead of being formed between rotating ring and pump shaft, sealing effect is preferable.
Preferably, fixing groove is offered on the mounting portion, is embedded with fixed frame in the fixing groove, on the fixed frame
Several locating slots are offered, are provided with to be embedded into several locating pieces in locating slot on the rotating seat.
Through the above technical solutions, certain sizing can be played to the auxiliary seal of rubber material for fixed frame and protection is made
With extending the service life of auxiliary seal, the cooperation of locating piece and locating slot makes to be less prone to phase between fixed frame and rotating seat
To rotation, the stability of moving ring assembly in use is improved.
Preferably, spring is provided between two rotating seats, the spring is used to that rotating ring and stationary ring to be driven mutually to support
Tightly.
Through the above technical solutions, when the mechanical seal is mounted in the pump housing, static components and moving ring assembly are sleeved on
On pump shaft and spring is in compressive state, and the lower power generated of spring reset effect is applied on rotating seat, and be transferred on stationary ring,
Then the elastic force of spring is acted on stationary ring and rotating ring always, so that rotating ring and stationary ring keep abutting state, sealing effect is good.
Preferably, the static components further include symmetrically arranged two stationary seats, and the stationary seat is used to consolidate with the pump housing
It is fixed, the stationary ring slot for installing stationary ring is offered on the stationary seat, the material of the stationary seat is rubber.
Through the above technical solutions, when the mechanical seal is mounted in the pump housing, two stationary seats are packed into corresponding on the pump housing
In mounting hole, the stationary seat of rubber material is flexibility, can prevent water from passing through between stationary seat and mounting hole to a certain extent
Fit clearance leaks out, and sealing effect is preferable.
Preferably, integrally formed with sealing ring on the stationary seat lateral wall.
Through the above technical solutions, sealing ring enhances the sealing effect between stationary seat and the pump housing.
Preferably, the quantity of the sealing ring is two.
Through the above technical solutions, the quantity of sealing ring is two, further enhance close between stationary seat and the pump housing
Seal effect.
Preferably, the stationary seat is extended with flange close to one end of rotating ring to away from stationary seat direction.
Through the above technical solutions, when the mechanical seal be mounted on the pump housing in when, the inner wall of flange and the pump housing offset and incite somebody to action
Stationary seat limits so that stationary seat can be more smoothly mounted in the pump housing.
In conclusion the utility model having the beneficial effect that in contrast to the prior art：The service life of the mechanical seal compared with
Long, better performances, are not easy occur Seepage at mechanical seal using the water pump of the mechanical seal.
Description of the drawings
Fig. 1 is the structure diagram of mechanical seal in embodiment, the concrete structure of main prominent mechanical seal；
Fig. 2 is sectional views of the Fig. 1 along I-I lines, the internal structure of main prominent mechanical seal.
Reference numeral：1st, moving ring assembly；11st, rotating seat；111st, mounting groove；12nd, auxiliary seal；121st, sealing；122、
Mounting portion；13rd, rotating ring；14th, spring；2nd, static components；21st, stationary ring；22nd, stationary seat；3rd, fixing groove；4th, holding tank；5th, it is fixed
Frame；6th, locating slot；7th, locating piece；8th, stationary ring slot；9th, sealing ring；10th, flange.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
This specific embodiment is only explanation to the utility model, is not the limitation to the utility model, ability
Field technique personnel can as needed make the present embodiment the modification of no creative contribution after this specification is read, but
As long as it is all protected in the right of the utility model by Patent Law.
As illustrated in fig. 1 and 2, a kind of mechanical seal, including moving ring assembly 1 and static components 2, moving ring assembly 1 includes symmetrical
The rotating ring 13 of auxiliary seal 12, two of two rotating seats 11, two of setting and the spring being arranged between two rotating seats 11
14, static components 2 include symmetrically arranged two stationary rings 21 and two stationary seats 22, and stationary ring 21 is mounted on stationary seat 22, and two
A stationary ring 21 and two stationary seats 22 are divided to the both ends for being located at moving ring assembly 1 for two groups and respectively, the end face of rotating ring 13 and stationary ring 21
End face abut.
When the mechanical seal is mounted in the pump housing, rotating seat 11, auxiliary seal 12, rotating ring 13 are sleeved on pump shaft,
Rotating seat 11 is cylindrical shape and opening is towards stationary ring 21, and the hollow space of rotating seat 11 forms mounting groove 111.Auxiliary seal 12 is pacified
In rotating seat 11, the material of auxiliary seal 12 is rubber, and auxiliary seal 12 includes sealing 121 and mounting portion 122, sealing
Portion 121 is embedded into mounting groove 111 and is fitted close with mounting groove 111, and mounting portion 122 passes through rotating seat 11 and to away from installation
111 direction of slot extends, and the internal ring wall of mounting portion 122 is bonded with pump shaft, and then sealing is formed between mounting portion 122 and pump shaft, peace
Fixing groove 3 is offered on 122 lateral wall of dress portion, fixing groove 3 is circumferentially disposed along mounting portion 122.Sealing 121 deviates from mounting portion
The holding tank 4 for being embedded in for rotating ring 13 is offered on 122 end face, holding tank 4 is circle, and rotating ring 13 is close with holding tank 4
Cooperation, rotating ring 13 are annular shape, and the material of rotating ring 13 is aluminium oxide ceramics.
Fixed frame 5 is embedded in fixing groove 3, the section of fixed frame 5 is L-type, offers locating slot 6 on fixed frame 5, positions
The quantity of slot 6 is four and is equidistant circle distribution, and the locating piece 7 being embedded into locating slot 6 is provided on rotating seat 11, positioning
The quantity of block 7 is also for four and corresponding to 6 position of locating slot, and fixed frame 5 can play centainly the auxiliary seal 12 of rubber material
Sizing and protective effect, extend the service life of auxiliary seal 12, by the cooperation of locating piece 7 and locating slot 6, make fixed frame
Relative rotation is less prone between 5 and rotating seat 11, improves the stability of moving ring assembly 1 in use.
Spring 14 is also sleeved on pump shaft, and the both ends of spring 14 and two end faces of two rotating seats 11 towards spring 14 are supported
It connects, when which is mounted in the pump housing, spring 14 is in compressive state, and the power generated under 14 reset response of spring is applied to
On rotating seat 11, and being transferred on stationary ring 21, then the elastic force of spring 14 is acted on always on stationary ring 21 and rotating ring 13, so that
Rotating ring 13 and stationary ring 21 keep abutting state, and sealing effect is good.
When the mechanical seal is mounted in the pump housing, stationary ring 21 and stationary seat 22 are sleeved on pump shaft, and stationary seat 22 is
Cylindric and opening forms stationary ring slot 8 towards rotating ring 13, the hollow space of stationary seat 22, and the material of stationary seat 22 is rubber.It is quiet
Integrally formed with sealing ring 9 on 22 lateral wall of ring seat, the quantity of sealing ring 9 is two.Stationary seat 22 is close to one end of rotating ring 13
Flange 10 is extended with to away from 22 direction of stationary seat, flange 10 is integrally formed with stationary seat 22, and flange 10 is annular shape.Stationary ring 21
Lateral wall it is stepped to be sequentially reduced to 13 direction of rotating ring, stationary ring 21 is mounted in stationary ring slot 8 and closely matches with stationary ring slot 8
It closes, the material of stationary ring 21 is carbon graphite.
When the mechanical seal is mounted in the pump housing, two stationary seats 22 are packed on the pump housing in corresponding mounting hole, rubber
The stationary seat 22 of material is flexibility, can prevent water from being oozed by the fit clearance between stationary seat 22 and mounting hole to a certain extent
It leaks, the sealing ring 9 of setting enhances the sealing effect between stationary seat 22 and the pump housing, and the inner wall of flange 10 and the pump housing
It offsets and limits stationary seat 22 so that stationary seat 22 can be more smoothly mounted in the pump housing.
To sum up, when which is mounted in the pump housing, static components 2 and moving ring assembly 1 are sleeved on pump shaft, two
Stationary seat 22 is packed on the pump housing in corresponding mounting hole, and spring 14 be in compressive state, due to mounting portion 122 internal ring wall and
Pump shaft is bonded, and the material of mounting portion 122 is rubber, then sealing is formed between mounting portion 122 and pump shaft, and pump shaft rotation can drive
Moving ring assembly 1 rotates, and then rotating ring 13 also rotates with, and stationary ring 21 is fixedly mounted on by stationary seat 22 on the pump housing, rotating ring
13 and the opposite end face phase mutual friction of stationary ring 21 and form sealing, and the elastic force of spring 14 can abut against rotating ring 13 and stationary ring 21
Tightly, to ensure sealing effect.The rotating ring 13 of aluminium oxide ceramics material has higher wear-resisting property, the stationary ring 21 of carbon graphite material
Self lubricity with good corrosion resistance, low friction coefficient, and graphite is good, can substantially reduce friction resistance between the two
Power is not easy mutually to wear between rotating ring 13 and stationary ring 21, and the service life of this mechanical seal is longer.
The above is only the exemplary embodiment of the utility model, the protection model rather than limited the present invention
It encloses, the scope of protection of the utility model is determined by appended claim.
Claims (8)
1. a kind of mechanical seal, including moving ring assembly (1) and static components (2), it is characterized in that：The moving ring assembly (1) includes
Symmetrically arranged two rotating seats (11) and two rotating rings (13) offer on the opposite end face of two rotating seats (11) and are used for
For the embedded mounting groove (111) of rotating ring (13), the material of the rotating ring (13) is aluminium oxide ceramics, static components (2) packet
Symmetrically arranged two stationary rings (21) are included, two stationary rings (21) are located at the both ends of moving ring assembly (1) respectively, and two described quiet
The material of ring (21) is carbon graphite, and the end face of the rotating ring (13) and the end face of stationary ring (21) abut.
2. a kind of mechanical seal according to claim 1, it is characterized in that：It is close that auxiliary is provided in the mounting groove (111)
It seals (12), the auxiliary seal (12) is including the sealing (121) that is located between rotating seat (11) and rotating ring (13) and passes through
The mounting portion (122) of rotating seat (11), the internal ring wall of the mounting portion (122) are bonded with pump shaft, the auxiliary seal (12)
Material is rubber.
3. a kind of mechanical seal according to claim 2, it is characterized in that：Fixing groove is offered on the mounting portion (122)
(3), fixed frame (5) is embedded in the fixing groove (3), several locating slots (6) is offered on the fixed frame (5), it is described dynamic
It is provided with to be embedded into several locating pieces (7) in locating slot (6) in ring seat (11).
4. a kind of mechanical seal according to claim 3, it is characterized in that：Bullet is provided between two rotating seats (11)
Spring (14), the spring (14) is for driving rotating ring (13) and stationary ring (21) mutually to push against.
5. a kind of mechanical seal according to claim 4, it is characterized in that：The static components (2) further include arranged symmetrically
Two stationary seats (22), the stationary seat (22) offers to install for fixing with the pump housing on the stationary seat (22)
The stationary ring slot (8) of stationary ring (21), the material of the stationary seat (22) is rubber.
6. a kind of mechanical seal according to claim 5, it is characterized in that：It is integrally formed on stationary seat (22) lateral wall
There is sealing ring (9).
7. a kind of mechanical seal according to claim 6, it is characterized in that：The quantity of the sealing ring (9) is two.
8. a kind of mechanical seal according to claim 7, it is characterized in that：The stationary seat (22) is close to the one of rotating ring (13)
It holds to away from stationary seat (22) direction and is extended with flange (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721521661.4U CN207539079U (en) | 2017-11-14 | 2017-11-14 | A kind of mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721521661.4U CN207539079U (en) | 2017-11-14 | 2017-11-14 | A kind of mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207539079U true CN207539079U (en) | 2018-06-26 |
Family
ID=62613679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721521661.4U Expired - Fee Related CN207539079U (en) | 2017-11-14 | 2017-11-14 | A kind of mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207539079U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209985A (en) * | 2018-10-26 | 2019-01-15 | 扬中市华龙橡塑电器有限公司 | A kind of mechanical sealing member for centrifugal pump seal |
-
2017
- 2017-11-14 CN CN201721521661.4U patent/CN207539079U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209985A (en) * | 2018-10-26 | 2019-01-15 | 扬中市华龙橡塑电器有限公司 | A kind of mechanical sealing member for centrifugal pump seal |
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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: 20180626 Termination date: 20181114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |