CN205824184U - A kind of dynamic sealing device for bearing block - Google Patents
A kind of dynamic sealing device for bearing block Download PDFInfo
- Publication number
- CN205824184U CN205824184U CN201620536136.9U CN201620536136U CN205824184U CN 205824184 U CN205824184 U CN 205824184U CN 201620536136 U CN201620536136 U CN 201620536136U CN 205824184 U CN205824184 U CN 205824184U
- Authority
- CN
- China
- Prior art keywords
- lip seal
- single lip
- head end
- end cap
- axle head
- 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.)
- Expired - Fee Related
Links
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- Sealing With Elastic Sealing Lips (AREA)
- Sealing Of Bearings (AREA)
Abstract
This utility model provides a kind of dynamic sealing device for bearing block, described dynamic sealing device includes: the first single lip seal (1), second single lip seal (2), spacer ring (3), lubricant grease feeding pipe (4), axle head end cap (5) and sealing gland (6)；It is sequentially installed with described sealing gland (6), described second single lip seal (2), described spacer ring (3), described first single lip seal (1), described axle head end cap (5) the most from inside to outside；Described sealing gland (6) is by the second single lip seal (2) described in bolt presses, and be fixed on described axle head end cap (5), described axle head end cap (5) is connected with bearing block (9) by bolt, and be fixed on bearing block (9), described lubricant grease feeding pipe (3) is inserted from the top down by the silk hole on described axle head end cap (5) and the through hole on described spacer ring (3), and does not contacts with axle (7).
Description
Technical field
This utility model relates to mechanical equipment technical field, particularly to a kind of dynamic sealing device for bearing block.
Background technology
At present, in the installation process of bearing apparatus, often in order to protect bearing, make the lubricating condition that bearing holding is good
With normal working environment, need bearing, especially rolling bearing, seal, prevent the leakage of lubricant, and ash
The entrance of dirt, steam or other pollutant.Generally, axle is installed within the bearing, and bearing is arranged in bearing block, and needs at axle head
To seal between axle and bearing in end cap, general conventional sealing means includes: oil sealing, packing seal, mechanical seal etc..
But, in the equipment using bearing, such as roller-way, gear shaft, sprocket wheel, reel, transfer roller etc., outside it usually
Be in environment relatively severe under conditions of, the substantial amounts of inflow such as extraneous dust, steam and be deposited at sealing station, destroy axle
Holding the sealing between axle, cause seal failure, the service life of bearing reduces.
Summary of the invention
The purpose of this utility model is, poor to existing sealing device sealing effectiveness for solving, service life is short
Defect, and then a kind of dynamic sealing device for bearing block is provided, comprising: the first single lip seal, the second single lip seal, every
Ring, lubricant grease feeding pipe, axle head end cap and sealing gland；It is sequentially installed with described sealing the most from inside to outside
Gland, described second single lip seal, described spacer ring, described first single lip seal, described axle head end cap；Wherein, described sealing is pressed
Lid is by the second single lip seal described in bolt presses and is fixed on described axle head end cap, the height of described spacer ring distance axis and institute
The height stating the second single lip seal distance axis is identical with the height of described first single lip seal distance axis；Described axle head end cap passes through
Bolt is connected with bearing block and is fixed on bearing block, and described lubricant grease feeding pipe is by the silk hole of described axle head end cap and institute
State and insert from the top down at spacer ring, and do not contact with axle.
Described first single lip seal and described second single lip seal are equipped with the lip being C-shaped, and lip is towards axle head
End, and the internal diameter of the lip of the internal diameter of the lip of described first single lip seal and described second single lip seal with axle was respectively
It is full of cooperation.
It is matched in clearance between described sealing gland and described axle head end cap.
Through hole on described spacer ring is relative with the silk hole on described axle head end cap.
Described lubricant grease feeding pipe can also replace with oil-air lubrication pipeline, compressed air line or compressed nitrogen pipeline
Change.
After the described dynamic sealing device for bearing block is mounted on an axle, lubricant grease feedway is along described lubricating oil
Fat feeding pipe, by the first single lip seal described in lubricant grease cyclic injection with between described second single lip seal, produces oil
Pressure, and give described first single lip seal with radial pressure respectively, strengthen sealing；Give described second single lip seal with axially simultaneously
Expansionary force, owing to its internal pressure is more than external atmosphere pressure so that the steam of entrance, dust etc. impurity with parts of lubricating oil
Seborrhea goes out, and cleaning of described first single lip seal and described second single lip seal lip position.
The utility model has the advantage of: outside effectively the influence factor such as dust, steam being isolated in sealing device, greatly
Improve greatly service life and the sealing effectiveness of bearing, effectively cleaning of described first single lip seal and described second single lip simultaneously
Oil seal lip position, the life-span is long, it is not necessary to periodic replacement, substantially increases work efficiency and production efficiency.
Accompanying drawing explanation
Fig. 1 is a kind of schematic cross-section being mounted on an axle for the dynamic sealing device of bearing block of the present utility model；
1, first single lip seal the 2, second single lip seal
3, spacer ring 4, lubricant grease feeding pipe
5, axle head end cap 6, sealing gland
7, axle 8, bearing
9, bearing block
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As it is shown in figure 1, this utility model provides a kind of dynamic sealing device for bearing block, comprising: first single lip oil
Envelope 1, the second single lip seal 2, spacer ring 3, lubricant grease feeding pipe 4, axle head end cap 5 and sealing gland 6；In the axial direction by
Left-to-right it is sequentially installed with described sealing gland 6, described second single lip seal 2, described spacer ring 3, described first single lip seal 1,
Described axle head end cap 5；Wherein, described sealing gland 6 compresses to the right described second single lip seal 2 by bolt, and is fixed on institute
State on axle head end cap 5, the height of the height of described spacer ring 3 distance axis 7 and described second single lip seal 2 distance axis 7 and described the
The height of one single lip seal 1 distance axis 7 is identical；Described axle head end cap 5 is connected with bearing block 9 by bolt, and is fixed on bearing
On seat 9, described lubricant grease feeding pipe 3 by the silk hole on described axle head end cap 5 and the through hole on described spacer ring 3 to
Lower insertion, and do not contact with axle 7.
Described first single lip seal 1 and described second single lip seal 2 are equipped with the lip being C-shaped, and lip is towards axle
End end, and the internal diameter of the lip of the internal diameter of the lip of described first single lip seal 1 and described second single lip seal 2 respectively with axle
7 is interference fit.
It is matched in clearance between described sealing gland 6 and described axle head end cap 5.
Through hole on described spacer ring 3 is relative with the silk hole on described axle head end cap 5.
As it is shown in figure 1, after axle 7, bearing 8 and bearing block 9 will be installed, by the described dynamic sealing device peace being used for bearing block
Be contained on the right-hand member of axle 7, lubricant grease feedway along described lubricant grease feeding pipe 4 by lubricant grease cyclic injection
Between described first single lip seal 1 and described second single lip seal 2, produce oil pressure, and respectively give described first single lip seal 1 with
Radial pressure, strengthens sealing；Giving described second single lip seal 2 to axially expand power, the pressure internal due to it is more than simultaneously
External atmosphere pressure so that the steam of entrance, dust etc. impurity go out with parts of lubricating oil seborrhea, cleaning of described first single lip oil
Envelope 1 and the lip position of described second single lip seal 2.
In other specific embodiments, described lubricant grease feeding pipe 4 can also use oil-air lubrication pipeline, compressed air
Pipeline or compressed nitrogen pipeline are replaced.
In the case of the inner space of described axle head end cap 5 allows, described first single lip seal 1, described second single lip
The number of oil sealing 2 and described spacer ring 3 can accordingly increase according to practical situation, and accordingly increases the supply of described lubricant grease
The number of pipeline 4.
It is last it should be noted that the experiment figure described in detailed description of the invention is only used for skill of the present utility model is described
The feasibility of art scheme software algorithm and be not limited to this example, algorithm passes through lot of experimental data checking, is true and reliable
, collocation hardware just can realize the technical solution of the utility model.Although this utility model having been carried out in detail with reference to embodiment
Illustrate, it will be understood by those within the art that, the technical solution of the utility model is modified or equivalent,
Without departure from the spirit and scope of technical solutions of the utility model, it all should be contained ought at right of the present utility model
In.
Claims (5)
1. the dynamic sealing device for bearing block, it is characterised in that described dynamic sealing device includes: the first single lip seal
(1), the second single lip seal (2), spacer ring (3), lubricant grease feeding pipe (4), axle head end cap (5) and sealing gland (6)；At axle
Described sealing gland (6), described second single lip seal (2), described spacer ring (3), institute it is sequentially installed with from inside to outside on direction
State the first single lip seal (1), described axle head end cap (5)；Described sealing gland (6) is by the second single lip seal described in bolt presses
(2), and it is fixed on described axle head end cap (5), the height of described spacer ring (3) distance axis (7) and described second single lip seal (2)
The height of distance axis (7) is identical with the height of described first single lip seal (1) distance axis (7)；Described axle head end cap (5) passes through spiral shell
Bolt is connected with bearing block (9), and is fixed on bearing block (9), and described lubricant grease feeding pipe (4) is by described axle head end cap
(5) the silk hole on and the through hole on described spacer ring (3) insert from the top down, and do not contact with axle (7).
A kind of dynamic sealing device for bearing block the most according to claim 1, it is characterised in that described first single lip oil
Envelope (1) and described second single lip seal (2) are equipped with the lip being C-shaped, and this lip is towards axle head end, and described first
The internal diameter of the internal diameter of the lip of single lip seal (1) and the lip of described second single lip seal (2) is that interference is joined with axle (7) respectively
Close.
A kind of dynamic sealing device for bearing block the most according to claim 1, it is characterised in that described sealing gland
And be matched in clearance between described axle head end cap (5) (6).
A kind of dynamic sealing device for bearing block the most according to claim 1, it is characterised in that on described spacer ring (3)
Through hole relative with the silk hole on described axle head end cap (5).
A kind of dynamic sealing device for bearing block the most according to claim 1, it is characterised in that described lubricant grease supplies
It is replaced by oil-air lubrication pipeline, compressed air line or compressed nitrogen pipeline to pipeline (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620536136.9U CN205824184U (en) | 2016-06-02 | 2016-06-02 | A kind of dynamic sealing device for bearing block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620536136.9U CN205824184U (en) | 2016-06-02 | 2016-06-02 | A kind of dynamic sealing device for bearing block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205824184U true CN205824184U (en) | 2016-12-21 |
Family
ID=57569137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620536136.9U Expired - Fee Related CN205824184U (en) | 2016-06-02 | 2016-06-02 | A kind of dynamic sealing device for bearing block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205824184U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937626A (en) * | 2016-06-02 | 2016-09-14 | 山东钢铁股份有限公司 | Dynamic seal device for bearing seat |
-
2016
- 2016-06-02 CN CN201620536136.9U patent/CN205824184U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937626A (en) * | 2016-06-02 | 2016-09-14 | 山东钢铁股份有限公司 | Dynamic seal device for bearing seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20190602 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |