CN201170267Y - Seal cover - Google Patents
Seal cover Download PDFInfo
- Publication number
- CN201170267Y CN201170267Y CNU2008200850805U CN200820085080U CN201170267Y CN 201170267 Y CN201170267 Y CN 201170267Y CN U2008200850805 U CNU2008200850805 U CN U2008200850805U CN 200820085080 U CN200820085080 U CN 200820085080U CN 201170267 Y CN201170267 Y CN 201170267Y
- Authority
- CN
- China
- Prior art keywords
- constant velocity
- cover body
- cardan joint
- velocity cardan
- ball cage
- 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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- Sealing Devices (AREA)
Abstract
The utility model discloses a seal cover. A cover body (3) comprises a seal cavity, two opening ends and a longitudinal section which is of a spring shape and elastomer material; one end of the cover body closing to a constant velocity cardan joint (1) is fixed on the constant velocity cardan joint (1) by a constant velocity cardan joint lathe dog (2), while the other end is fixed on an intermediate shaft (5) by an intermediate shaft lathe dog (4); the inner wall of the cover body (3) axially closing to the constant velocity cardan joint lathe dog (2) has a plurality of radial inward ratchet-shaped prominences which are distributed evenly along a circumferential direction; and the distance between two adjacent ratchet-shaped prominences (3.1) is between 2 and 3 mm. The seal cover enables lubricant grease to smooth the constant velocity cardan joint constantly, thus to decrease the abrasion of an inner constant velocity cardan joint and an outer constant velocity cardan joint, and to extend the service life of the inner constant velocity cardan joint, the outer constant velocity cardan joint and a constant velocity cardan joint assembly.
Description
Technical field
The utility model relates to a kind of seal closure, specifically is a kind of seal closure that is used for automobile with the constant velocity universal joint assembly.
Background technique
Automobile with the constant velocity universal joint assembly be contained between automobile differential and the wheel or terminal reduction gear of gearbox and wheel between be used for the mechanical part of transmitting movement and moment of torsion, it is that internal spherical cage and ectosphere cage, jack shaft and other component form to equal 1 instantaneous angular velocity than the constant velocity universal joint of transmitting movement by output shaft and input shaft.It goes back the synchronous change operating angle and the slippage of stretching in transmitting movement and moment of torsion, and above function is mainly realized by internal spherical cage in the constant velocity universal joint assembly and ectosphere cage, objectively require to obtain in the internal spherical cage of constant velocity universal joint assembly and the ectosphere cage continuous lubrication of lubricant grease in actual applications, and lubricant grease mainly is stored in separately the seal closure, and enters in the ball cage through the junction of seal closure and ball cage.
The cover body of the seal closure of the internal spherical cage of prior art and ectosphere cage is that to have sealed cavity and both ends open and longitudinal section be the cover body of the elastic material of spring shape.Seal closure is enclosed within on the jack shaft, leans on an end of ball cage to be fixed on the ball cage by ball cage clip, and the other end is fixed on the jack shaft by the jack shaft clip.Sealing cover cover body is that the inwall in lubricant grease outlet port is a smooth surface by the inwall of ball cage clip axially.The seal closure of above structure exists a defective: because seal closure lubricant grease outlet port inwall is more smooth, the resistance that makes the interior lubricant grease of seal closure enter the ball cage is little, lubricant grease consumes too fast when internal spherical cage and the work of ectosphere cage, can't guarantee continuous lubrication to the ball cage, accelerate the wearing and tearing of internal spherical cage and ectosphere cage, reduced the working life of internal spherical cage and ectosphere cage and constant velocity universal joint assembly.
The model utility content
The technical problems to be solved in the utility model is, can make the wearing and tearing of internal spherical cage that lubricant grease continuous lubrication ball cage reduces and ectosphere cage and prolong internal spherical cage and the seal closure in ectosphere cage and constant velocity universal joint assembly working life thereby provide a kind of.
Technical solution of the present utility model is, a kind of seal closure with following structure is provided, its cover body is that to have sealed cavity and both ends open and longitudinal section be the cover body of the elastic material of spring shape, described cover body is fixed on the ball cage by ball cage clip by an end of ball cage, the other end is fixed on the jack shaft by the jack shaft clip, and described cover body is on the inwall in lubricant grease outlet port a plurality of radially inner ratchet-like projections to be arranged by the inwall of ball cage clip axially.
After adopting above structure, the utility model seal closure compared with prior art has the following advantages:
When live axle drives output shaft, when jack shaft and input shaft high speed rotating, lubricant grease is evenly distributed on the inwall of cover body owing to action of centrifugal force in the seal closure, and be that the inwall in lubricant grease outlet port enters internal spherical cage and ectosphere cage by the inwall of ball cage clip vertically gradually, because the cover body of sealing cover is on the inwall in lubricant grease outlet port a plurality of radially inner ratchet-like projections to be arranged by the inwall of ball cage clip, the groove of lubricant grease between adjacent dentation enters the ball cage, strengthened the frictional force of lubricant grease and seal closure cover body inwall, increased the resistance that lubricant grease enters the ball cage, make lubricant grease slowly enter the ball cage and consumption gradually, improved the service time of lubricant grease, reduce the wearing and tearing of internal spherical cage and ectosphere cage, ensured that lubricant grease to the continuous lubrication in the ball cage, has prolonged the working life of internal spherical cage and ectosphere cage and constant velocity universal joint assembly.
As improvement, described a plurality of radially inner ratchet-like projections axially circumferentially evenly distribute by the inwall upper edge of ball cage clip at cover body; Described even distribution refers to interval 2～3mm between cover body is axially by circumferential any two the adjacent ratchet-like projections in the inwall upper edge of ball cage clip.Like this, make the lubricant grease that enters the ball cage more even, more suitable, to the service time, the wearing and tearing that reduce internal spherical cage and ectosphere cage that improve lubricant grease, ensure lubricant grease to the continuous lubrication in the ball cage, prolong internal spherical cage and ectosphere cage and constant velocity universal joint assembly the advantage in working life more outstanding.
Description of drawings
Fig. 1 is the sectional structure schematic representation of the utility model seal closure when being installed in the constant velocity universal joint assembly.
Fig. 2 is the sectional structure schematic representation of the utility model seal closure.
Fig. 3 is the sectional structure schematic representation along A-A line among Fig. 2.
Shown in the figure 1, the ball cage, 2, ball cage clip, 3, cover body, 3.1, the ratchet-like projection, 4, jack shaft clip, 5, jack shaft.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, ball cage 1 refers to internal spherical cage and ectosphere cage, and the cover body 3 of the seal closure of internal spherical cage and ectosphere cage is the elastic material of spring shape such as the cover body of rubber for having sealed cavity and both ends open and longitudinal section.The cover body 3 of seal closure is enclosed within on the jack shaft 5, and the end by ball cage 1 of cover body 3 is fixed on the ball cage 1 by ball cage clip 2, and the other end of cover body 3 is fixed on the jack shaft 5 by jack shaft clip 4.It more than is the utility model technical characteristics same as the prior art.
As Fig. 2, shown in Figure 3, the characteristics of the utility model seal closure are on the inwall that described cover body 3 axial inwalls by ball cage clip 2 are the lubricant grease outlet port a plurality of radially inner ratchet-like projections 3.1 to be arranged.Described a plurality of radially inner ratchet-like projection 3.1 axially circumferentially evenly distributes by the inwall upper edge of ball cage clip 2 at cover body 3.Described even distribution refers to interval 2～3mm between cover body 3 is axially by circumferential any two the adjacent ratchet-like projections 3.1 in the inwall upper edge of ball cage clip 2.
Claims (3)
1, a kind of seal closure, its cover body (3) is the cover body of the elastic material of spring shape for having sealed cavity and both ends open and longitudinal section, described cover body (3) is fixed on the ball cage (1) by ball cage clip (2) by an end of ball cage (1), the other end is fixed on the jack shaft (5) by jack shaft clip (4), it is characterized in that: described cover body (3) axially has a plurality of radially inner ratchet-like projections (3.1) by on the inwall of ball cage clip (2).
2, seal closure according to claim 1 is characterized in that: described a plurality of radially inner ratchet-like projections (3.1) axially circumferentially evenly distribute by the inwall upper edge of ball cage clip (2) at cover body (3).
3, seal closure according to claim 2 is characterized in that: described even distribution refers to interval 2～3mm between cover body (3) is axially by circumferential any two the adjacent ratchet-like projections (3.1) in the inwall upper edge of ball cage clip (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200850805U CN201170267Y (en) | 2008-04-02 | 2008-04-02 | Seal cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200850805U CN201170267Y (en) | 2008-04-02 | 2008-04-02 | Seal cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201170267Y true CN201170267Y (en) | 2008-12-24 |
Family
ID=40209320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200850805U Expired - Fee Related CN201170267Y (en) | 2008-04-02 | 2008-04-02 | Seal cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201170267Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939489A (en) * | 2014-04-02 | 2014-07-23 | 宁波纬尚汽车零部件有限公司 | Matched modified structure of dustproof cover in inner spherical cage |
| CN105309094A (en) * | 2014-05-27 | 2016-02-10 | 株式会社久保田 | Working machine |
| CN111609047A (en) * | 2020-05-29 | 2020-09-01 | 中国电子科技集团公司第十四研究所 | Sheath suitable for large-angle conical swing universal joint and manufacturing method thereof |
-
2008
- 2008-04-02 CN CNU2008200850805U patent/CN201170267Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939489A (en) * | 2014-04-02 | 2014-07-23 | 宁波纬尚汽车零部件有限公司 | Matched modified structure of dustproof cover in inner spherical cage |
| CN105309094A (en) * | 2014-05-27 | 2016-02-10 | 株式会社久保田 | Working machine |
| CN105309094B (en) * | 2014-05-27 | 2020-05-01 | 株式会社久保田 | Working machine |
| CN111609047A (en) * | 2020-05-29 | 2020-09-01 | 中国电子科技集团公司第十四研究所 | Sheath suitable for large-angle conical swing universal joint and manufacturing method thereof |
| CN111609047B (en) * | 2020-05-29 | 2024-01-30 | 中国电子科技集团公司第十四研究所 | Sheath suitable for large-angle conical swing universal joint and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081224 Termination date: 20130402 |