CN2876425Y - Cardan joint having sealing structure - Google Patents
Cardan joint having sealing structure Download PDFInfo
- Publication number
- CN2876425Y CN2876425Y CN 200620101308 CN200620101308U CN2876425Y CN 2876425 Y CN2876425 Y CN 2876425Y CN 200620101308 CN200620101308 CN 200620101308 CN 200620101308 U CN200620101308 U CN 200620101308U CN 2876425 Y CN2876425 Y CN 2876425Y
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- China
- Prior art keywords
- universal joint
- bearing
- sealing
- axle sleeve
- dust
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- Expired - Fee Related
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Abstract
The utility model relates to a universal joint which is with good sealing structure, long use time, and whose dust boot is not easy to fall off. The utility model resolves the problem that the universal joint has bad sealing effect, leaks oil and short use time; the utility model includes a cross shaft (1), which is equipped with an inclined plane (11); a bearing (2), which is provided on the shaft head of the cross shaft (1); and a dust boot (4), which is provided at the end part of the bearing opening; a needle roller (6), a gasket (7) and a oil seal (3) are provided inside the bearing (2); a shaft cover (5) is provided outside the bearing (2) and used to match with the bearing (2); the utility model is characterized in that: a plurality of lips (32) and oil seal grooves (31) are provided on the said oil seal (3); a oil seal inclined plane (33) is provided inside the oil seal (3); the said lips (32) are respectively matched with the shaft covers (5) provided on the dust boot (4) and the bearing (2).
Description
Technical field
The utility model relates to a kind of universal joint, is a kind of good sealing effect specifically, the universal joint of not easy oil leakage and long service life.
Background technique
Existing universal joint generally all is made up of cross axle, bearing and oil nozzle, the dust sealing weak effect, silt etc. is invaded universal joint inside easily in the using process, thereby makes universal joint not have effect, though or dust-proof cover arranged on the cross axle, but when assembling, be easy to come off, oil sealing and axle sleeve etc. do not have auto-lock function, and assembling capacity is poor, and the end face of cross axle directly contacts with the bearing bottom, be easy to wearing and tearing, sintering, life of product is short.The applicant also once applied for the patent of relevant dust-proof sealing structure universal joint, as the universal joint (patent No.: 200420082640.3) with the self-locking dust-proof sealing structure, though the patent of the applicant application has constantly been improved existing shortcoming in the prior art, the aspect also has deficiency to prevent that at dust-proof sealing structure and when assembling dust-proof cover from coming off etc.
As mentioned above, there is following deficiency in prior art: the structure more complicated, sealing effect relatively poor or when assembling dust-proof cover come off easily, assembling capacity is poor, working life is short.
Summary of the invention
The utility model has solved the structure more complicated that prior art exists, sealing effect relatively poor or when assembling dust-proof cover come off easily, assembling capacity is poor, the problem that working life is short, provide a kind of energy dustproof and good sealing effect, the universal joint of dust-proof cover difficult drop-off.
Further, a plurality of lips are set on the oil sealing, make it have auto-lock function, solved the original problem that the skeleton Drop-proof is set on it, saved material, and simple in structure.
Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs: a kind of universal joint of sealing configuration, comprise the cross axle that is provided with the inclined-plane, the dust-proof cover of being located at the bearing on the cross axle spindle nose and being arranged at bearing mouth end, be provided with needle roller, pad and oil sealing in the described bearing, described bearing periphery is provided with the axle sleeve suitable with it, it is characterized in that described oil sealing is provided with is provided with the oil sealing inclined-plane on some lips, oil sealing recess and the inboard thereof, described lip respectively with dust-proof cover and bearing on the axle sleeve that is provided with suitable.Two ends, the inclined-plane root that is provided with on the cross axle respectively connects a big fillet smooth transition, has strengthened the intensity of cross axle on the universal joint, and this inclined-plane and the interference of oil sealing inclined-plane join, and has strengthened sealability; Cooperate with the self-locking axle sleeve by self-locking oil sealing, self-locking dust-proof cover, prevent coming off of dust-proof cover, improved the assembling capacity of product; Dust-proof cover is an elastomer, can be rubber material, and it has rebound elasticity preferably, contacts with cross axle, axle sleeve and oil tight skeleton flexibility, and compensate for wear has good seal action automatically; A plurality of lips that oil sealing is provided with adapt to cooperation with dust-proof cover and axle sleeve respectively, are linked to be integral body, simplify the structure, and have saved material, make its working life also corresponding elongated.
As preferably, the anticreep recess is set on the described axle sleeve, make it suitable with the mousing-hook embedding on the dust-proof cover, have auto-lock function, strengthened sealing.
As preferably, described dust-proof cover becomes L shaped, which is provided with axle sleeve on the suitable mousing-hook of anticreep recess, have the effect of self-locking, make the dust-proof cover difficult drop-off, effect that can enhanced leaktightness; Prominent with the anticreep card that the oil sealing recess is suitable, oil tight skeleton can be set just can make both cooperate, prevent that oil sealing from coming off, and saved material.
As preferably, it is suitable that described lip is no less than 1 bottom with L shaped dust-proof cover, it is suitable that described lip is no less than 1 and axle sleeve oral area end face, it is suitable that described lip is no less than 1 and sleeve diameter wall, so just utilize some lips just to make oil sealing and dust-proof cover and axle sleeve be linked to be integral body, simultaneously also have seal action, not only reached effect but also simplified the structure, saved material.
As preferably, the inclined-plane that is provided with on described oil sealing inclined-plane and the cross axle is suitable, has strengthened sealability.
As preferably, described lip and sleeve diameter wall interference fit, its magnitude of interference is 0.15～0.40mm, makes lip embed axle sleeve mouth end face like this, can strengthen the mating reaction of oil sealing and axle sleeve, prevents coming off of oil sealing, but also has sealability.
As preferably, described lip and sleeve diameter wall interference fit, its magnitude of interference is 0.15～0.40mm, makes lip embed the sleeve diameter wall like this, can strengthen the mating reaction of oil sealing and axle sleeve, prevents coming off of oil sealing, but also has sealability.
As preferably, the inclined-plane interference fit that is provided with on oil sealing inclined-plane and the cross axle, its magnitude of interference is 0.15～0.40mm, and the integrity of oil sealing and cross axle is improved, and has strengthened sealability.
As preferably, described axle sleeve is a U-shaped, its U-shaped bottom is provided with pad, described pad is provided with oil groove, and described pad adopts nylon material, and this nylon spacer has wear resistance preferably, can avoid cross axle directly to contact and cause premature wear or sintering with axle sleeve, and the damping friction between minimizing cross axis faces and the pad, improve the lubricity of grease, thereby prolong the working life of universal joint.
The utility model is skillfully constructed, by self-locking and with the combination of oil sealing and the self-locking dust-proof cover and the self-locking axle sleeve of many lips, prevent coming off of dust-proof cover, dust-proof cover adopts the rubber elastomeric material, because of it has good rebound elasticity, make its compensate for wear automatically, have good seal action, assembling capacity is good, long service life.
Description of drawings
Fig. 1 is a kind of universal joint assembling schematic representation of the present utility model:
Fig. 2 is a kind of cross axle structural representation of the present utility model:
Fig. 3 is a kind of bearing assembling schematic representation in the utility model;
Fig. 4 is a kind of structural representation of self-locking dust-proof cover in the utility model;
Fig. 5 is a kind of structural representation of self-locking axle sleeve in the utility model;
Fig. 6 is a kind of oil seal structure schematic representation in the utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described further.
Embodiment 1.See Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the universal joint of this example 1, a kind of sealing configuration comprises the cross axle (1) that is provided with inclined-plane (11), this inclined-plane and oil sealing inclined-plane (33) interference fit, and its magnitude of interference is 0.2mm; The dust-proof cover (4) that cross axle (1) spindle nose is provided with bearing (2) and is arranged at bearing mouth end, be provided with needle roller (6) in the described bearing (2), and bearing (2) periphery is provided with the axle sleeve suitable with it (5), described axle sleeve (5) is a U-shaped, its U-shaped bottom is provided with pad (7), described pad (7) is provided with oil groove (71), to reduce the damping friction between cross axis faces and the pad, improves the lubricity of grease; Described oil sealing (3) is provided with oil sealing inclined-plane (33) is set on 3 lips (32), oil sealing recess (31) and the inboard thereof, wherein the bottom of 1 lip (32) and L shaped dust-proof cover (4) is suitable, 1 and axle sleeve oral area end face (52) interference fit, 1 and sleeve diameter wall (53) interference fit, their magnitude of interference all is 0.2mm, not only simplify the structure reaching under the prerequisite of same sealability, good integrity has also been saved material; It is L shaped that described dust-proof cover (4) becomes, which is provided with and axle sleeve (5) on the mousing-hook (41) of anticreep recess (51) interference fit, its magnitude of interference is 0.2mm, and and the suitable anticreep card prominent (42) of oil sealing recess (31), prevent coming off of dust-proof cover, strengthened seal action.
Claims (10)
1, a kind of universal joint of sealing configuration, comprise the cross axle (1) that is provided with inclined-plane (11), the dust-proof cover (4) of being located at the bearing (2) on cross axle (1) spindle nose and being arranged at bearing mouth end, be provided with needle roller (6) in the described bearing (2), pad (7) and oil sealing (3), described bearing (2) periphery is provided with the axle sleeve suitable with it (5), it is characterized in that described oil sealing (3) is provided with some lips (32), oil sealing inclined-plane (33) is set on oil sealing recess (31) and the inboard thereof, described lip (32) respectively and dust-proof cover (4) and bearing (2) to go up the axle sleeve (5) that is provided with suitable.
2, the universal joint of a kind of sealing configuration according to claim 1 is characterized in that being provided with on the described axle sleeve (5) anticreep recess (51).
3, the universal joint of a kind of sealing configuration according to claim 1 and 2, it is characterized in that described dust-proof cover (4) becomes L shaped, which is provided with and axle sleeve (5) on suitable mousing-hook (41) and and the suitable anticreep card prominent (42) of oil sealing recess (31) of anticreep recess (51).
4, the universal joint of a kind of sealing configuration according to claim 1, it is suitable to it is characterized in that described lip (32) is no less than 1 bottom with L shaped dust-proof cover (4), it is suitable that described lip (32) is no less than 1 and axle sleeve oral area end face (52), and it is suitable that described lip (32) is no less than 1 and sleeve diameter wall (53).
5, the universal joint of a kind of sealing configuration according to claim 3, it is suitable to it is characterized in that described lip (32) is no less than 1 bottom with L shaped dust-proof cover (4), it is suitable that described lip (32) is no less than 1 and axle sleeve oral area end face (52), and it is suitable that described lip (32) is no less than 1 and sleeve diameter wall (53).
6, the universal joint of a kind of sealing configuration according to claim 1, it is suitable to it is characterized in that described oil sealing inclined-plane (33) and cross axle (1) are gone up the inclined-plane (11) that is provided with.
7, according to the universal joint of claim 1 or 4 described a kind of sealing configurations, it is characterized in that described lip (32) and axle sleeve oral area end face (52) interference fit, its magnitude of interference is 0.15～0.40mm.
8, according to the universal joint of claim 1 or 4 described a kind of sealing configurations, it is characterized in that described lip (32) and sleeve diameter wall (53) interference fit, its magnitude of interference is 0.15～0.40mm.
9, according to the universal joint of claim 1 or 6 described a kind of sealing configurations, it is characterized in that inclined-plane (11) interference fit that described oil sealing inclined-plane (33) and cross axle (1) upward are provided with, its magnitude of interference is 0.15～0.40mm.
10, the universal joint of a kind of sealing configuration according to claim 1 is characterized in that described axle sleeve (5) is a U-shaped, and its U-shaped bottom is provided with pad (7), and described pad (7) is provided with oil groove (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620101308 CN2876425Y (en) | 2006-03-01 | 2006-03-01 | Cardan joint having sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620101308 CN2876425Y (en) | 2006-03-01 | 2006-03-01 | Cardan joint having sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2876425Y true CN2876425Y (en) | 2007-03-07 |
Family
ID=37819662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620101308 Expired - Fee Related CN2876425Y (en) | 2006-03-01 | 2006-03-01 | Cardan joint having sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2876425Y (en) |
-
2006
- 2006-03-01 CN CN 200620101308 patent/CN2876425Y/en not_active Expired - Fee Related
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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: 20070307 Termination date: 20150301 |
|
| EXPY | Termination of patent right or utility model |