CN209444812U - A kind of large-size machine bearing room combined type non-contact seals component - Google Patents
A kind of large-size machine bearing room combined type non-contact seals component Download PDFInfo
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- CN209444812U CN209444812U CN201920006695.2U CN201920006695U CN209444812U CN 209444812 U CN209444812 U CN 209444812U CN 201920006695 U CN201920006695 U CN 201920006695U CN 209444812 U CN209444812 U CN 209444812U
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- gland
- screw
- casing
- ring
- combined type
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- Sealing Of Bearings (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a kind of large-size machine bearing room combined type non-contact seals components, including sealing element, fastener, structural member.The utility model, which is taken, allows bearing chamber lubricating oil on leakage path, from more to less, finally in the way of reverse reflux, balances bidirection press, reaches zero leakage.First section sealing, maze trough is processed on screw-casing, using centrifugal force, the major part of lubricating oil will be leaked, throws away leakage path, flow back to grease-box.The lubricating oil of leakage is blocked using floating-ring seal, is back to fuel tank by the lubricating oil still along leakage path leakage on a small quantity.Finally, realizing zero leakage using the reverse thread balance leakage channel bidirection press on screw-casing.
Description
Technical field
The utility model belongs to non-contact seals technical field, and it is non-contact to be related to a kind of large-size machine bearing room combined type
Seal assembly.
Background technique
According to the actual situation, the pattern of use is various for sealed bearing housing.It is common to have labyrinth seal, outside framework oil seal, felt collar close
The patterns such as envelope, mechanical seal, labyrinth seal use are more universal.Practical application only has felt dust slinger, in operational process, occurs
Bearing oil enters the phenomenon that motor, influences the service life of motor.
Utility model content
The purpose of this utility model is to provide a kind of large-size machine bearing room combined type non-contact seals components, solve
Because of the negative-pressure adsorption effect that motor cooling fan generates, lead to motor bearing chamber oil leak problem.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of large-size machine bearing room combined type non-contact seals component, is made of sealing element, fastener, structural member；
The seal assembly includes three kinds of seal forms, is respectively as follows: labyrinth seal, floating-ring seal, helixseal；The sealing element includes O
Shape circle, floating ring, screw-casing, dust slinger, the fastener include hexagonal cylindrical head in the first hexagon socket cap head screw, second
Screw, interior hexagon concave-end locking screw；The structural member includes: gland, pipe fitting；Air pipe passway, pressure are equipped in the gland
Dust slinger is equipped between lid and rotary shaft, gland is fixed on the machine body by second hexagon socket cap head screw, and described the
One hexagon socket cap head screw is fixed on the rotary shaft by screw-casing, and the interior hexagon concave-end locking screw is fixed on the one of gland
End is successively arranged maze trough and reverse thread for blocking the air pipe passway in gland on the screw-casing, the O-ring and
Floating ring is located in gland between maze trough and reverse thread, and the pipe fitting is placed on gland.
The gland is equipped with return flow line, is equipped with air circulation hole at the gland and helixseal cooperation.
Screw-casing assembly seperated with gland.
The labyrinth seal is realized that the floating-ring seal is realized jointly by O-ring, floating ring by the maze trough on screw-casing；
The helixseal is realized by the reverse thread on screw-casing.
The labyrinth seal, floating-ring seal, rotary shaft, helixseal become one.
The utility model has the beneficial effects that
A kind of the utility model large-size machine bearing room is with combined type non-contact seals component by using multistage, Duo Zhongxing
Formula non-contact seals realize the zero leakage of bearing chamber lubricating oil；And amount of seal wear is small, long service life.
Detailed description of the invention
The utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is a kind of cross-section structure signal of large-size machine bearing of the utility model room combined type non-contact seals component
Figure.
Fig. 2 is a kind of section partial enlargement of large-size machine bearing of the utility model room combined type non-contact seals component
Structural schematic diagram；
Fig. 3 is the structural schematic diagram of screw-casing described in the utility model；
Fig. 4 is the structural schematic diagram of gland described in the utility model.
Specific embodiment
Fig. 1 combination following examples are please referred to be described in detail:
A kind of large-size machine bearing room combined type non-contact seals component, is made of sealing element, fastener, structural member；
The seal assembly includes three kinds of seal forms, is respectively as follows: labyrinth seal, floating-ring seal, helixseal；The sealing element includes O
Shape circle 4, floating ring 5, screw-casing 6, dust slinger 9, the fastener include hexagonal in the first hexagon socket cap head screw 1, second
Fillister head screw 2, interior hexagon concave-end locking screw 8；The structural member includes: gland 3, pipe fitting 7；It is equipped in the gland 3
Air pipe passway, is equipped with dust slinger 9 between gland 3 and rotary shaft, second hexagon socket cap head screw 2 is fixed by gland 3
On body, screw-casing 6 is fixed in rotary shaft 10 by first hexagon socket cap head screw 1, and the interior hexagonal female end is tight
Determine one end that screw 8 is fixed on gland 3, the air pipe passway for blocking in gland 3 is successively arranged maze trough on the screw-casing
And reverse thread, the O-ring 4 and floating ring 5 are located in gland 3, are placed between maze trough and reverse thread, the pipe fitting is set
In on gland.
The gland is equipped with return flow line, is equipped with air circulation hole at the gland 3 and helixseal cooperation.
The screw-casing 6 is seperated with gland 3 to be assembled.
The labyrinth seal is realized that the floating-ring seal is realized jointly by O-ring, floating ring by the maze trough on screw-casing 6；
The helixseal is realized by the reverse thread on screw-casing 6.
The labyrinth seal, floating-ring seal rotary shaft, helixseal become one.
The utility model, which is taken, allows bearing chamber lubricating oil on leakage path, from more to less, finally utilizes reverse reflux side
Formula balances bidirection press, reaches zero leakage.First section sealing, processes maze trough on screw-casing 6, using centrifugal force, will leak
The major part of lubricating oil, throws away leakage path, flows back to grease-box.On a small quantity still along the lubricating oil of leakage path leakage, using floating
Ring 5 seals, and the lubricating oil of leakage is blocked, fuel tank is back to.Finally, logical using the reverse thread balance leakage on screw-casing 6
Road bidirection press realizes zero leakage.
Above content is only to the utility model structure example and explanation, the technology people of affiliated the art
Member makes various modifications or additions to the described embodiments or is substituted in a similar manner, without departing from reality
With novel structure or beyond the scope defined by this claim, all should belong to the protection range of the utility model.
Claims (5)
1. a kind of large-size machine bearing room combined type non-contact seals component, which is characterized in that by sealing element, fastener, knot
Component composition；The seal assembly includes three kinds of seal forms, is respectively as follows: labyrinth seal, floating-ring seal, helixseal；It is described close
Sealing includes O-ring, floating ring, screw-casing, dust slinger, and the fastener is including in the first hexagon socket cap head screw, second
Hexagonal cylindrical head screw, interior hexagon concave-end locking screw；The structural member includes: gland, pipe fitting；Gas is equipped in the gland
Tube passage, is equipped with dust slinger between gland and rotary shaft, gland is fixed on body by second hexagon socket cap head screw
On, first hexagon socket cap head screw is fixed on the rotary shaft by screw-casing, and the interior hexagon concave-end locking screw is fixed
Maze trough and reverse thread, institute are successively arranged on the screw-casing for blocking the air pipe passway in gland in one end of gland
It states O-ring and floating ring is located in gland, be placed between maze trough and reverse thread, the pipe fitting is placed on gland.
2. a kind of large-size machine bearing room according to claim 1 combined type non-contact seals component, which is characterized in that
The gland is equipped with return flow line, is equipped with air circulation hole at the gland and helixseal cooperation.
3. a kind of large-size machine bearing room according to claim 1 combined type non-contact seals component, which is characterized in that
Screw-casing assembly seperated with gland.
4. a kind of large-size machine bearing room according to claim 1 combined type non-contact seals component, which is characterized in that
The labyrinth seal is realized that the floating-ring seal is realized jointly by O-ring, floating ring by the maze trough on screw-casing；The spiral
Sealing is realized by the reverse thread on screw-casing.
5. a kind of large-size machine bearing room according to claim 1 combined type non-contact seals component, which is characterized in that
The labyrinth seal, floating-ring seal, rotary shaft, helixseal become one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920006695.2U CN209444812U (en) | 2019-01-03 | 2019-01-03 | A kind of large-size machine bearing room combined type non-contact seals component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920006695.2U CN209444812U (en) | 2019-01-03 | 2019-01-03 | A kind of large-size machine bearing room combined type non-contact seals component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209444812U true CN209444812U (en) | 2019-09-27 |
Family
ID=68017357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920006695.2U Active CN209444812U (en) | 2019-01-03 | 2019-01-03 | A kind of large-size machine bearing room combined type non-contact seals component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209444812U (en) |
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2019
- 2019-01-03 CN CN201920006695.2U patent/CN209444812U/en active Active
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