CN206054744U - Floating labyrinth ring - Google Patents
Floating labyrinth ring Download PDFInfo
- Publication number
- CN206054744U CN206054744U CN201621016876.6U CN201621016876U CN206054744U CN 206054744 U CN206054744 U CN 206054744U CN 201621016876 U CN201621016876 U CN 201621016876U CN 206054744 U CN206054744 U CN 206054744U
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- CN
- China
- Prior art keywords
- seal
- labyrinth ring
- floating labyrinth
- described body
- groove
- 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.)
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
This utility model provides a kind of floating labyrinth ring, including the annular body being made up of the first seal and the second seal, described body outer circumferential is provided with the elastic fastening component that can be tightly fastened the first seal and the second seal, helicitic texture is provided with the inside of described body, at least one is offered on described body and runs through body and the oil drain passage being connected with helicitic texture, described body is provided with the circumferential position limiting structure for preventing body from circumferentially rotating.This utility model has simple structure, the good advantage of sealing effectiveness.
Description
Technical field
This utility model belongs to mechanical seal structure technical field, more particularly, to a kind of floating labyrinth ring.
Background technology
Labyrinth seal is the sealing tooth group of the concave-convex annular with several little clearance being arranged in order between axle and housing
Close, between sealing tooth and axle, form a series of throttling clearance and expansion cavity, the lubricant of splashing, must often by sealing tooth together
Very big resistance will be run into, so as to produce throttle effect, the speed of lubricant is constantly weakened, the lubricant after decrease is along close
Then the inner side trickling of envelope tooth, is returned in bearing room by the spill port to toroidal cavity bottom, is reached to the bottom of toroidal cavity
To the effect for preventing lubricant from leaking outside.The inside of existing floating labyrinth ring is multiple grooves, and its sealing and blocking effect are poor.
Utility model content
The purpose of this utility model is for the problems referred to above, there is provided a kind of floating labyrinth ring, with simple structure, sealing effect
Really good advantage.
To reach above-mentioned purpose, this utility model employs following technical proposal：This floating labyrinth ring, including close by first
The annular body of envelope body and the second seal composition, described body outer circumferential is provided with can will be the first seal and second close
The elastic fastening component that envelope body is tightly fastened, is provided with helicitic texture, offers at least on described body on the inside of described body
One runs through body and the oil drain passage being connected with helicitic texture, and described body is provided with the week for preventing body from circumferentially rotating
To position limiting structure.
Preferably, described elastic fastening component includes at least one annular fastening for being arranged at body outer circumferential
Groove, is provided with the elastic component that can connect the first seal and the second seal in described binding groove.
Preferably, described binding groove is more than the size near body side away from the size of body side, it is described
Elastic component includes ring-spring, and the side that described binding groove is contacted with spring is loop concave.
Preferably, described circumferential position limiting structure includes that at least one is arranged at protruding block.
Preferably, described body is provided with sealing oil groove along any one end or two ends of central axial direction, institute
The sealing oil groove stated is connected with oil drain passage.
Compared with prior art, the utility model has the advantage of：By structure is threaded on the inside of body come
Replace traditional groove structure so that floating labyrinth ring has more excellent sealing effectiveness and the oily effect of gear.
Description of the drawings
Fig. 1 is the main view section of the floating labyrinth ring that this utility model is provided.
Fig. 2 is A portions amplification assumption diagram in Fig. 1.
Fig. 3 is the top view of the floating labyrinth ring that this utility model is provided.
In figure, the first seal 11, the second seal 12, body 1, helicitic texture 2, oil drain passage 3, circumferential position limiting structure
4th, binding groove 5, elastic component 51, sealing oil groove 6.
Specific embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, this programme includes the ring-type sheet being made up of the first seal 11 and the second seal 12
Body 1, it is characterised in that 1 outer circumferential of body is provided with the bullet that can be tightly fastened the first seal 11 and the second seal 12
Property fastening assembly, helicitic texture 2 is provided with the inside of body 1, offer on body at least one through body and with 2 phase of helicitic texture
The oil drain passage 3 of connection, body 1 are provided with the circumferential position limiting structure 4 for preventing body 1 from circumferentially rotating, and this programme is by body 1
Inner side be threaded 2 structures of knot replacing traditional groove structure so that floating labyrinth ring has more excellent sealing effectiveness
With the oily effect of gear.
Specifically, elastic fastening component includes at least one annular binding groove 5 for being arranged at 1 outer circumferential of body, tightly
Gu the elastic component 51 that the first seal 11 and the second seal 12 can be connected is provided with groove 5.
For more preferable fixed elastic component 51, binding groove 5 is more than near 1 side of body away from the size of 1 side of body
Size, elastic component 51 include ring-spring, and the side that binding groove 5 is contacted with spring is loop concave.
Specifically, circumferential position limiting structure 4 includes that at least one is arranged at protruding block.
Additionally, described body 1 is provided with sealing oil groove 6 along any one end or two ends of central axial direction, it is described
Sealing oil groove 6 be connected with oil drain passage 3.
Specific embodiment described herein is only explanation for example to this utility model spirit.This utility model institute
Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment
Mode substitute, but without departing from it is of the present utility model spirit or surmount scope defined in appended claims.
Although more having used the first seal 11, the second seal 12, body 1, helicitic texture 2, oil extraction to lead to herein
The terms such as road 3, circumferential position limiting structure 4, binding groove 5, elastic component 51, sealing oil groove 6, but be not precluded from using other terms can
Can property.Using these terms just for the sake of more easily describing and explaining essence of the present utility model, it is construed as appointing
A kind of what additional restriction is all contrary with this utility model spirit.
Claims (5)
1. a kind of floating labyrinth ring, including the annular body (1) being made up of the first seal (11) and the second seal (12), its
Be characterised by, described body (1) outer circumferential be provided with can the first seal (11) and the second seal (12) it is closely solid
Fixed elastic fastening component, is provided with helicitic texture (2) on the inside of described body (1), offers at least one on described body
The oil drain passage (3) being connected through body and with helicitic texture (2), described body (1) is provided with prevents body (1) circumferential
The circumferential position limiting structure (4) of rotation.
2. floating labyrinth ring according to claim 1, it is characterised in that：Described elastic fastening component includes at least one
The annular binding groove (5) of body (1) outer circumferential is arranged at, being provided with described binding groove (5) can be by the first seal
(11) elastic component (51) that and the second seal (12) connects.
3. floating labyrinth ring according to claim 2, it is characterised in that：Described binding groove (5) is away from body (1) side
Size more than near body (1) side size, described elastic component (51) is including ring-spring, described binding groove (5)
The side contacted with spring is loop concave.
4. floating labyrinth ring according to claim 1, it is characterised in that：Described circumferential position limiting structure (4) is including at least
One is arranged at protruding block.
5. floating labyrinth ring as claimed in any of claims 1 to 4, it is characterised in that：Described body (1) is in
Any one end of heart axis direction or two ends are provided with sealing oil groove (6), described sealing oil groove (6) and oil drain passage (3)
It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621016876.6U CN206054744U (en) | 2016-08-31 | 2016-08-31 | Floating labyrinth ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621016876.6U CN206054744U (en) | 2016-08-31 | 2016-08-31 | Floating labyrinth ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206054744U true CN206054744U (en) | 2017-03-29 |
Family
ID=58373903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621016876.6U Active CN206054744U (en) | 2016-08-31 | 2016-08-31 | Floating labyrinth ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206054744U (en) |
-
2016
- 2016-08-31 CN CN201621016876.6U patent/CN206054744U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |