CN208719356U - One kind is shut off the anti-beat sealing dust-proof device of type - Google Patents
One kind is shut off the anti-beat sealing dust-proof device of type Download PDFInfo
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- CN208719356U CN208719356U CN201821478720.9U CN201821478720U CN208719356U CN 208719356 U CN208719356 U CN 208719356U CN 201821478720 U CN201821478720 U CN 201821478720U CN 208719356 U CN208719356 U CN 208719356U
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- ring
- main
- main ring
- rotary shaft
- proof device
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model provides one kind and shuts off the anti-beat sealing dust-proof device of type, including at least rotary shaft, rotating ring and stationary ring, the stationary ring includes the first main ring and the second main ring being arranged radially along rotary shaft, and it is connected to the outer ring between the first main ring and the second main ring, outer ring is axially disposed, the section that first main ring, the second main ring and outer ring are collectively formed is in " door " font, and it is seal chamber that chamber is formed by between stationary ring and rotary shaft；The rotating ring includes the third main ring being arranged radially along rotary shaft and the flinger ring positioned at third main ring left and right ends；First main ring, the second main ring inner headed face on be provided with interior sealing lip and outer seal lip, the top margin of interior sealing lip and outer seal lip is in contact with rotary shaft.The sealing dust-proof device favorable sealing property, can be suitable for beat operating condition.
Description
Technical field
The utility model provides a kind of sealing device more particularly to a kind of suitable for rotation axis, there are the inclined of certain amplitude
The sealing device in operating condition is put, for being sealed to rotation axis.
Background technique
Labyrinth seal is that several belt sealing teeth being arranged successively are set around rotation axis, and a system is formed between tooth and tooth
Shut off gap and expansion cavity are arranged, sealed medium generates throttle effect when through the gap in tortuous labyrinth and reaches Drain Resistance
The device of purpose.Since there are gap, no solid contacts between the rotor and casing of labyrinth seal, and allow to have thermal expansion, therefore
Adapt to high temperature, high pressure, the occasion of high speed-frequency, this seal form be widely used in steam turbine, gas turbine, compressor,
The shaft end of air blower and it is at different levels between sealing.
In some scenarios, since the manufacture of rotation axis, installation are lack of standardization, or due to specific rotation mode, having can
Capable of leading to rotation axis, in radial direction, there are the beats of certain amplitude in rotary course, in this situation, traditional labyrinth seal
Device can not be carried out using not having the effect of sealing not only, but also be likely to result in the damage between rotating ring and stationary ring.Cause
This, provides that a kind of sealing performance is excellent, and the sealing device suitable for beat operating condition, and it is urgently to be resolved to become this field
Problem.
Summary of the invention
The utility model solves deficiency in the prior art, provides one kind and shuts off the anti-beat sealing dust-proof device of type,
The device favorable sealing property, can be suitable for beat operating condition.
Realize technical solution used by the utility model above-mentioned purpose are as follows:
One kind is shut off the anti-beat sealing dust-proof device of type, includes at least rotary shaft, rotating ring and stationary ring, moving ring sleeve is in rotary shaft
It above and with rotary shaft fixes, and is rotated together with rotary shaft, stationary ring is fixed on equipment end and covers, and stationary ring covers on rotating ring, institute
The stationary ring stated includes the first main ring and the second main ring being arranged radially along rotary shaft, and is connected to the first main ring and the second main ring
Between outer ring, outer ring is axially disposed, the section that the first main ring, the second main ring and outer ring are collectively formed be in " door " font, it is quiet
It is seal chamber that chamber is formed by between ring and rotary shaft；The rotating ring include the third main ring that is arranged radially along rotary shaft with
And the flinger ring positioned at third main ring left and right ends, third main ring is between the first main ring and the second main ring, described two gears
Pendular ring extends outwardly setting respectively along the direction with 30~45 ° of radial left and right deviation；First main ring, the second main ring it is interior
Be provided with interior sealing lip and outer seal lip on disc, the interior sealing lip and outer seal lip respectively along with radial left and right deviation
30~45 ° of direction is extended inwardly, and interior sealing lip and the top margin of outer seal lip are in contact with rotary shaft.
Isolation ring is provided on outer ring, the isolation ring is located on the inner headed face of outer ring, is disposed radially, and isolation ring position
Between two flinger rings in rotating ring.
The ring gear that shuts off is additionally provided on first main ring, the second main ring, the ring gear that shuts off is located at the first main ring and
Towards on the inner sidewall of seal chamber in two main rings, two ring gears that shut off are respectively along the direction with 30~45 ° of radial left and right deviation
Extend outwardly setting.
Third main ring is tied tight by hose clamp to be fixed in rotary shaft.
It is radially extended on first main ring or the second main ring and is provided with positioning step.
Compared with prior art, the utility model has the advantage that in sealing device provided in the application, stationary ring
On the first main ring, the second main ring inner headed face on be provided with interior sealing lip and outer seal lip, interior sealing lip and outer seal lip
Top margin be in contact with rotary shaft, dual-seal is realized with this.Since interior sealing lip and outer seal lip are flexible, and
The two and rotary shaft inclination contact, therefore even if rotary shaft produces radial beat it is also ensured that interior during rotation
Sealing lip and outer seal lip are fitted in rotary shaft and are sealed, this is one.If the lubricating grease that is sealed or the external world
Dirt has passed through interior sealing lip and outer seal lip enters in seal chamber, at this time due to two flinger rings set on rotating ring
In the presence of flinger ring is rotated with the rotation of rotary shaft, and lubricating grease or dirt can be got rid of outward by flinger ring under the influence of centrifugal force
On the inner wall of ring, the bottom of outer ring is then flowed under the effect of gravity.The inside of outer ring is provided with two in rotating ring again
Isolation ring between flinger ring can keep apart the lubricating grease for collecting in outer ring bottom and dirt, shut off to play
Effect, this be secondly.Therefore the anti-beat sealing dust-proof device of the type that shuts off provided by the utility model both can be suitably used for beat operating condition
In, lubricant grease is sealed, while dust-proof, waterproof effect can also be played.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the anti-beat sealing dust-proof device of the type provided by the utility model that shuts off；
In figure: 1- rotary shaft, the first main ring of 2-, the second main ring of 3-, 4- outer ring, 5- seal chamber, 6- third main ring, 7- keep off liquid
Ring, sealing lip in 8-, 9- outer seal lip, 10- isolation ring, 11- shut off ring gear, 12- hose clamp, 13- positioning step.
Specific embodiment
Detailed specific description is done to the utility model with reference to the accompanying drawing.
The overall structure of the anti-beat sealing dust-proof device of the type that shuts off provided by the utility model is as shown in Figure 1.The type that shuts off
Anti- beat sealing dust-proof device includes rotary shaft 1, rotating ring and stationary ring, and moving ring sleeve is fixed on the rotary shaft and with rotary shaft, and with
Rotary shaft rotates together with, and stationary ring is fixed on equipment end and covers, and stationary ring covers on rotating ring.
The stationary ring includes the first main ring 2 and the second main ring 3 being arranged radially along rotary shaft, and is connected to the first master
Outer ring 4 between ring and the second main ring, outer ring is axially disposed, the section that the first main ring, the second main ring and outer ring are collectively formed
In " door " font, it is seal chamber 5 that chamber is formed by between stationary ring and rotary shaft；The inner circle of first main ring, the second main ring
Be provided with interior sealing lip 8 and outer seal lip 9 on face, the interior sealing lip and outer seal lip respectively along with radial left and right deviation
30~45 ° of direction is extended inwardly, and interior sealing lip and the top margin of outer seal lip are in contact with rotary shaft.
The rotating ring includes the third main ring 6 being arranged radially along rotary shaft and the gear positioned at third main ring left and right ends
Pendular ring 7, third main ring between the first main ring and the second main ring, described two flinger rings respectively along with radial left and right deviation
30~45 ° of direction extends outwardly setting；Third main ring is tied tight by hose clamp 12 to be fixed in rotary shaft.
Isolation ring 10 is provided on outer ring, the isolation ring is located on the inner headed face of outer ring, is disposed radially, and isolation ring
Between two flinger rings in rotating ring.The ring gear 11 that shuts off is additionally provided on first main ring, the second main ring, it is described to shut off
Ring gear is located in the first main ring and the second main ring towards on the inner sidewall of seal chamber, two shut off ring gear respectively along with diameter to the left
Direction of the right avertence from 30~45 ° extends outwardly setting.It is radially extended on first main ring or the second main ring and is provided with positioning
Step 13, stationary ring between positioning step and equipment end cap by positioning and fixing.
Claims (5)
- The anti-beat sealing dust-proof device of type 1. one kind is shut off includes at least rotary shaft, rotating ring and stationary ring, and moving ring sleeve is on the rotary shaft And fixed with rotary shaft, and rotated together with rotary shaft, stationary ring is fixed on equipment end and covers, and stationary ring covers on rotating ring, special Sign is: the stationary ring includes the first main ring and the second main ring being arranged radially along rotary shaft, and is connected to the first main ring And the second outer ring between main ring, outer ring is axially disposed, and the section that the first main ring, the second main ring and outer ring are collectively formed is in " door " font, it is seal chamber that chamber is formed by between stationary ring and rotary shaft；The rotating ring includes being arranged radially along rotary shaft Third main ring and flinger ring positioned at third main ring left and right ends, third main ring be located at the first main ring and the second main ring it Between, described two flinger rings extend outwardly setting respectively along the direction with 30~45 ° of radial left and right deviation；Described first is main Ring, the second main ring inner headed face on be provided with interior sealing lip and outer seal lip, the interior sealing lip and outer seal lip edge respectively Be extended inwardly with 30~45 ° of radial left and right deviation of direction, and interior sealing lip and the top margin of outer seal lip with rotation Axis is in contact.
- 2. the anti-beat sealing dust-proof device of the type that shuts off according to claim 1, it is characterised in that: be provided with isolation on outer ring Ring, the isolation ring are located on the inner headed face of outer ring, are disposed radially, and isolation ring be located at two flinger rings in rotating ring it Between.
- 3. the anti-beat sealing dust-proof device of the type that shuts off according to claim 1, it is characterised in that: first main ring, The ring gear that shuts off is additionally provided on two main rings, the ring gear that shuts off is located in the first main ring and the second main ring towards the inside of seal chamber On wall, two ring gears that shut off extend outwardly setting respectively along the direction with 30~45 ° of radial left and right deviation.
- 4. the anti-beat sealing dust-proof device of the type that shuts off according to claim 1, it is characterised in that: third main ring passes through hose clamp It ties tight and is fixed in rotary shaft.
- 5. the anti-beat sealing dust-proof device of the type that shuts off according to claim 1, it is characterised in that: first main ring or It is radially extended on two main rings and is provided with positioning step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821478720.9U CN208719356U (en) | 2018-09-11 | 2018-09-11 | One kind is shut off the anti-beat sealing dust-proof device of type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821478720.9U CN208719356U (en) | 2018-09-11 | 2018-09-11 | One kind is shut off the anti-beat sealing dust-proof device of type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208719356U true CN208719356U (en) | 2019-04-09 |
Family
ID=65981591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821478720.9U Active CN208719356U (en) | 2018-09-11 | 2018-09-11 | One kind is shut off the anti-beat sealing dust-proof device of type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208719356U (en) |
-
2018
- 2018-09-11 CN CN201821478720.9U patent/CN208719356U/en active Active
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