CN2752551Y - Labyrinth type driving axle dustproof sealing device - Google Patents
Labyrinth type driving axle dustproof sealing device Download PDFInfo
- Publication number
- CN2752551Y CN2752551Y CNU2004200751271U CN200420075127U CN2752551Y CN 2752551 Y CN2752551 Y CN 2752551Y CN U2004200751271 U CNU2004200751271 U CN U2004200751271U CN 200420075127 U CN200420075127 U CN 200420075127U CN 2752551 Y CN2752551 Y CN 2752551Y
- Authority
- CN
- China
- Prior art keywords
- lip
- sealing device
- lip circle
- shaped ring
- utility
- 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
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Abstract
The utility model relates to a labyrinth type anti-dust sealing device which is suitable to be used for a mating spline of a non-constant-velocity driving axle for performing dust prevention. The utility model comprises a spline shaft, an inner spline sleeve, a protective casing tube of which one end is arranged on an outer spline shaft and an oil cup, wherein the other end of the protective casing tube is provided with a lip-shaped ring which is hooped on the external circle of the inner spline sleeve; the lip-shaped ring is a lip-shaped ring with double cutting edges; the other end of the protective casing tube is provided with a large opening end plane; the lip-shaped ring is arranged on the large opening end plane, and is formed into a whole with the protective casing tube. The utility model has the advantages of little material consumption, light weight, good sealing performance, long service life, strong adaptability and good compensability.
Description
Technical field:
The utility model relates to a kind of mazy type dust sealing device that non-constant speed splined driveshaft pair is prevented dust and used that is suitable for.
Background technique:
Be used to protect the secondary to-and-fro motion of splined driveshaft at present and not the Sealing of premature wear mostly be oil sealing; oil sealing has two kinds on oil resistant rubber and oil resistant felt; their common feature is to place the oil sealing blanking cover; reciprocating with spline, remove the micronic dust of splined surfaces, the oil sealing of this structure by its flank contact force; complex process; function singleness, and in the serious occasion of dust, just do not accommodate very much with transmission shaft as engineering machinery, rolling machinery.
Summary of the invention:
The purpose of this utility model be to overcome the deficiencies in the prior art and a kind of internal oil sealing applied widely is provided, to the mazy type dust sealing device of covering dirt.
The purpose of this utility model is achieved through the following technical solutions: comprise that male splined shaft, inner spline housing, an end are arranged on sheathed casing, the lubricating cup on the male splined shaft, the other end of sheathed casing is provided with the lip circle, lip circle hoop tightly is on the cylindrical of inner spline housing, and this lip circle lip circle that is a kind of double blade.The other end of sheathed casing has the big opening end face, and this lip circle is arranged on this big opening end face, and simultaneously, this lip circle is formed by the nitrile rubber sizing material mold pressing, is becoming one through vulcanizing treatment and sheathed casing.Described sheathed casing is through gold machining be stamped to form by tubing.
The utility model and common oil sealing relatively have following advantage:
1, the lip circle is the combination of the metalwork and the rubber parts of thin-walled, and its material expends seldom, its very light in weight;
2, good seal performance, long service life, because the lip circle is to be made by nitrile butadiene rubber, the off-centre that assembly error is caused all has certain adaptability and follows compensatory preferably to the spline housing cylindrical.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a sheathed casing structural representation of the present utility model.
Fig. 3 is the lip coil structures schematic representation of double blade of the present utility model.
Embodiment:
As shown in Figure 1, 2, 3, comprise that male splined shaft 1, inner spline housing 3, an end are arranged on sheathed casing 2, the lubricating cup 4 on the male splined shaft 1, the other end of sheathed casing 2 is provided with lip circle 5, lip circle 5 hoop tightly is on the cylindrical of inner spline housing 3, and this lip circle 5 lip circle that is a kind of double blade.The other end of sheathed casing 2 has the big opening end face mouth 6 greater than bore, and this lip circle 5 is arranged on this big opening end face mouth.The lip circle is formed by the nitrile rubber sizing material mold pressing, is becoming one through vulcanizing treatment and sheathed casing.
One end of sheathed casing 2 is welded on the male splined shaft 1, the other end then has double blade lip circle, lip circle hoop tightly is on the cylindrical of inner spline housing 3, when splined shaft 1 relative inner spline housing 3 is made axially reciprocating, the contact force of lip circle dependence procheilon scrapes off dust and the dirt on inner spline housing 3 cylindricals, prevent that the outside dust from entering in the spline pair, the lubricating grease of sealing in the lubricating cup 4 injection spline pairs does not leak, in order to avoid cause the premature wear of spline.
Claims (3)
1, a kind of mazy type transmission shaft dust sealing device, comprise that male splined shaft (1), inner spline housing (3), an end are arranged on sheathed casing (2), the lubricating cup (4) on the male splined shaft (1), it is characterized in that: the other end of sheathed casing (2) is provided with lip circle (5), lip circle (5) hoop is on the cylindrical of inner spline housing (3), and this lip circle (5) lip circle that is a kind of double blade.
2, a kind of mazy type transmission shaft dust sealing device according to claim 1, it is characterized in that: the other end of sheathed casing (2) has big opening end face mouth (6), and this lip circle (5) is arranged on this big opening end face mouth.
3, a kind of mazy type transmission shaft dust sealing device according to claim 1 and 2, it is characterized in that: the lip circle is formed by the nitrile rubber sizing material mold pressing, is becoming one through vulcanizing treatment and sheathed casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200751271U CN2752551Y (en) | 2004-11-15 | 2004-11-15 | Labyrinth type driving axle dustproof sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200751271U CN2752551Y (en) | 2004-11-15 | 2004-11-15 | Labyrinth type driving axle dustproof sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2752551Y true CN2752551Y (en) | 2006-01-18 |
Family
ID=35913961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200751271U Expired - Fee Related CN2752551Y (en) | 2004-11-15 | 2004-11-15 | Labyrinth type driving axle dustproof sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2752551Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143585A (en) * | 2017-05-18 | 2017-09-08 | 北京航天发射技术研究所 | A kind of breakaway-element Rzeppa shape wheel side power transmission shaft for heavy goods vehicles |
-
2004
- 2004-11-15 CN CNU2004200751271U patent/CN2752551Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143585A (en) * | 2017-05-18 | 2017-09-08 | 北京航天发射技术研究所 | A kind of breakaway-element Rzeppa shape wheel side power transmission shaft for heavy goods vehicles |
| CN107143585B (en) * | 2017-05-18 | 2020-06-02 | 北京航天发射技术研究所 | Disconnected ball cage type wheel-side transmission shaft for heavy-duty vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XUCHANG FAR EAST DRIVE SHAFT CO. Free format text: FORMER NAME OR ADDRESS: XUCHANG YUANDONG TRANSMISSION SHAFT CO.,LTD. |
|
| CP03 | Change of name, title or address |
Address after: Xuchang, Henan, Beijiao still Town, zip code: 461111 Patentee after: Xuchang Yuandong Drive Shaft Corp. Address before: Xuchang, Henan, Beijiao still Town, zip code: 461111 Patentee before: Xuchang Yuandong Transmission Shaft Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060118 Termination date: 20131115 |