CN2733084Y - Universal joint with self-locking dustproof sealing structure - Google Patents
Universal joint with self-locking dustproof sealing structure Download PDFInfo
- Publication number
- CN2733084Y CN2733084Y CN 200420082640 CN200420082640U CN2733084Y CN 2733084 Y CN2733084 Y CN 2733084Y CN 200420082640 CN200420082640 CN 200420082640 CN 200420082640 U CN200420082640 U CN 200420082640U CN 2733084 Y CN2733084 Y CN 2733084Y
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- China
- Prior art keywords
- dust
- universal joint
- proof
- proof cover
- bearing
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- Expired - Fee Related
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- Sealing Devices (AREA)
Abstract
The utility model relates to the structural improvement of a universal joint with a self-locking dustproof sealed structure. The universal joint with the self-locking dustproof sealed structure comprises a cross shaft, a bearing which is arranged on the shaft head of the cross shaft, and a dustproof cover which is arranged on the opening end portion of the bearing. The oil seal of a skeleton in an L shape is arranged inside the bearing. The L shape end portion of the skeleton outwards turns to form an anti-drop bundling opening. The anti-drop bundling opening is matched with an anti-drop barb inside the dustproof cover. The utility model has reasonable structure, convenient processing and installation, low cost, better dustproof effect, long service life, and wide applicability.
Description
Technical field
The utility model relates to a kind of universal joint, especially relates to a kind of improvement of the gimbal structure to band self-locking dust-proof sealing structure.
Background technique
Existing universal joint generally is made up of cross axle, bearing, oil nozzle, dust sealing weak effect often, silt etc. is invaded universal joint inside easily in the using process, thereby cause product failure, though or dust-proof cover arranged on the cross axle, dust-proof cover is easy to come off when assembling, assembling capacity is poor, the end face of cross axle directly contacts with the bearing bottom, is easy to wearing and tearing, sintering, and life of product is short.The applicant also once applied for the patents of a plurality of relevant dust-proof sealing structure universal joint aspects, though the patent of the applicant's application has constantly been improved existing shortcoming in the prior art, prevented to also have deficiency aspect coming off at dust-proof sealing structure.
Summary of the invention
The utility model mainly is to solve the existing in prior technology dust-proof cover to come off easily; Dust-proof cover cooperates very not tight with bearing outer ring, dustproof effect is very not good; Cross axle and outer ring directly contact causes wearing and tearing or sintering, makes the technical problem that working life is short etc.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: the universal joint of band self-locking dust-proof sealing structure, it comprises cross axle, 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 oil sealing in the described bearing into L type skeleton, described skeleton L type is translated into the anticreep tying outside the end, and the anticreep barb in described anticreep tying and the described dust-proof cover matches.Dust-proof cover by self-locking cooperates with the oil sealing of self-locking, has improved the assembling capacity of product; Dust-proof cover and bearing outer ring closely cooperate, and prevent that dust-proof cover from coming off, and make product have dustproof effect preferably.
As preferably, the cross section of described dust-proof cover is similar F font, the F font head of described dust-proof cover forms cavity to the bending of anticreep barb direction at described dust-proof cover F font head, and described anticreep tying stretches into the interior and described anticreep barb interference fit of cavity of dust-proof cover head.The dust-proof cover by self-locking and the oil sealing of self-locking have improved the assembling capacity of product, prevent that dust-proof cover from coming off.
As preferably, described anticreep barb and described anticreep tying are 0.3-1.0mm at magnitude of interference radially.Help preventing that dust-proof cover from coming off, help improving the assembling capacity of product again.
As preferably, be provided with the needle roller back-up ring between nearly described oil sealing end of the needle roller that is provided with in the described bearing and the described oil sealing, be provided with axis hole in the middle of the described needle roller back-up ring, the diameter of axis hole is greater than cross axle spindle nose external diameter.In the motion of axial direction, help again preventing that needle roller from directly contacting the wear resistance that influences oil sealing with oil sealing when helping effectively preventing needle roller work.
As preferably, the outer ring in the described bearing reduces gradually in the described bearing mouth of the outer radial end with the F font foot cooperation place of described dust-proof cover; The pad of being located at described bearing bottom is provided with oilhole, and the side of described pad is provided with some oil grooves.The inclined-plane of dust-proof cover and bearing outer ring closely cooperates, and has both prevented that dust-proof cover from coming off, and makes product have dustproof effect preferably again; Pad adopts nylon material, and this nylon spacer has wear resistance preferably, and can avoid cross axle directly to contact and cause premature wear or sintering with the outer ring, thus the working life of prolongation universal joint.
As preferably, described oil sealing is provided with inside and outside two oil sealing lips at least in L type skeleton bottom, and the size of oil sealing lip is increased outward successively by interior, outer oil seal lip and skeleton formation V-type cavity, and the F type head of described dust-proof cover bending places in the V-type cavity.The oil sealing lip has rebound elasticity preferably, contacts with cross axle is flexible, and compensate for wear has the better seal effect automatically, can prevent that lubricating grease leaks in the universal joint; The position of dust-proof cover and oil sealing is provided with to be beneficial to and prevents that the interior oil spill of bearing from going out, and do not hinder the rotation of bearing simultaneously again.
Therefore, the utlity model has rational in infrastructure, processing, easy to assembly, cost is low; Dustproof effect is better, long service life, and applicability is wide; Improved the assembling capacity of product by self-locking dust-proof cover and self-locking oil sealing, prevented that dust-proof cover from coming off, the inclined-plane of dust-proof cover and bearing outer ring closely cooperates, and makes product have dustproof effect preferably; The oil sealing lip has rebound elasticity preferably, contacts with cross axle is flexible, and compensate for wear has the better seal effect automatically; Be provided with nylon spacer in the bearing, this nylon spacer has wear resistance preferably, can avoid cross axle directly to contact with the outer ring and causes premature wear or sintering, thereby prolong the characteristics such as working life of universal joint.
Description of drawings
Accompanying drawing 2 is a kind of bearing assembly structure schematic representation of the present utility model;
Accompanying drawing 3 is a kind of structural representations of self-locking dust-proof cover in the utility model;
Accompanying drawing 4 is a kind of structural representations of self-locking oil sealing in the utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the universal joint of band self-locking dust-proof sealing structure, as shown in Figure 1, it comprises cross axle, the dust-proof cover 2 of being located at the bearing on the cross axle spindle nose and being arranged at bearing mouth end, the material of dust-proof cover 2 can be that nylon also can be the suitable derived material of various performances, as shown in Figure 2, be provided with oil sealing 8 in the described bearing 3 into L type skeleton 81, described skeleton 81L type is translated into anticreep tying 10 outside the end, oil sealing 8 can be all kinds of oil resistant rubbers, described anticreep tying 10 matches with anticreep barb 9 in the described dust-proof cover 2, the cross section of described dust-proof cover 2 is a similar F font (as shown in Figure 3), described anticreep tying 10 stretches into interior and described anticreep barb 9 interference fit of opening of F font dust-proof cover 2 heads, its magnitude of interference is 0.3-1.0mm, anticreep tying 10 can hook securely mutually with anticreep barb 9, prevent that dust-proof cover from coming off and rotate freely, effect with auto lock, and have dustproof preferably, seal action, can prevent dust, foreign matters such as sand grains enter, and can prevent that again lubricating grease leaks in the universal joint.As shown in Figure 2, be provided with needle roller back-up ring 7 between needle roller 6 that is provided with in the described bearing 3 and the described oil sealing 8, be provided with axis hole in the middle of the described needle roller back-up ring 7, the diameter of axis hole is greater than cross axle spindle nose external diameter, outer ring 4 in the described bearing 3 reduces gradually in the 3 mouthfuls of ends of the described bearing of outer radial with the F font foot cooperation place of described dust-proof cover 2, the pad 5 of being located at described bearing 3 bottoms is provided with oilhole 51, and the side of described pad 5 is provided with some oil grooves 52.Pad 5 adopts nylon spacer, oil groove on the pad 5 can be one-sided band oil groove, also can all be with oil groove by bilateral, oil groove can be a straight line type, also can be circular arc type or other shapes, the number of every side oil groove is 15, grease in the cross axle oilhole flows through from the pad oil groove, enter bearing and needle roller position then, as Fig. 2 or shown in Figure 4, described oil sealing 8 is provided with inside and outside two oil sealing lips at least in L type skeleton 81 bottoms, and the size of oil sealing lip is once increased outward by interior, outer oil seal lip and skeleton 81 form the V-type cavity, and the F type head of described dust-proof cover 2 bendings places in the V-type cavity.The oil sealing lip has rebound elasticity preferably, contacts with cross axle is flexible, and compensate for wear has the better seal effect automatically, and the position of dust-proof cover and oil sealing is provided with to be beneficial to and prevents that the interior oil spill of bearing from going out, and do not hinder the rotation of bearing simultaneously again.
Claims (10)
1. universal joint with the self-locking dust-proof sealing structure, comprise cross axle, the dust-proof cover of being located at the bearing on the cross axle spindle nose and being arranged at bearing mouth end, it is characterized in that being provided with in the described bearing (3) oil sealing (8) into L type skeleton (81), described skeleton (81) L type is translated into anticreep tying (10) outside the end, and the anticreep barb (9) in described anticreep tying (10) and the described dust-proof cover (2) matches.
2. the universal joint of band self-locking dust-proof sealing structure according to claim 1, the cross section that it is characterized in that described dust-proof cover (2) is similar F font, the F font head of described dust-proof cover (2) is to anticreep barb (9) direction bending, form cavity at described dust-proof cover (2) F font head, described anticreep tying (10) stretches into interior and described anticreep barb (9) interference fit of cavity of dust-proof cover (2) head.
3. the universal joint of band self-locking dust-proof sealing structure according to claim 1 and 2 is characterized in that described anticreep barb (9) and described anticreep tying (10) are 0.3-1.0mm at radially magnitude of interference.
4. the universal joint of band self-locking dust-proof sealing structure according to claim 1 and 2, it is characterized in that being provided with needle roller back-up ring (7) between the needle roller (6) that is provided with in the described bearing (3) and the described oil sealing (8), be provided with axis hole in the middle of the described needle roller back-up ring (7), the diameter of axis hole is greater than cross axle spindle nose external diameter.
5. the universal joint of band self-locking dust-proof sealing structure according to claim 3, it is characterized in that being provided with needle roller back-up ring (7) between the needle roller (6) that is provided with in the described bearing (3) and the described oil sealing (8), be provided with axis hole in the middle of the described needle roller back-up ring (7), the diameter of axis hole is greater than cross axle spindle nose external diameter.
6. the universal joint of band self-locking dust-proof sealing structure according to claim 1 and 2 is characterized in that the outer ring (4) in the described bearing (3) reduces gradually in the described bearing of outer radial (3) mouthful end with the F font foot cooperation place of described dust-proof cover (2); The pad (5) of being located at described bearing (3) bottom is provided with oilhole (51), and the side of described pad (5) is provided with some oil grooves (52).
7. the universal joint of band self-locking dust-proof sealing structure according to claim 4 is characterized in that the outer ring (4) in the described bearing (3) reduces gradually in the described bearing of outer radial (3) mouthful end with the F font foot cooperation place of described dust-proof cover (2); The pad (5) of being located at described bearing (3) bottom is provided with oilhole (51), and the side of described pad (5) is provided with some oil grooves (52).
8. the universal joint of band self-locking dust-proof sealing structure according to claim 1 and 2, it is characterized in that described oil sealing (8) is provided with inside and outside two oil sealing lips at least in L type skeleton (81) bottom, the size of oil sealing lip is increased outward successively by interior, outer oil seal lip and skeleton (81) form the V-type cavity, and the F type head that described dust-proof cover (2) is crooked places in the V-type cavity.
9. the universal joint of band self-locking dust-proof sealing structure according to claim 4, it is characterized in that described oil sealing (8) is provided with inside and outside two oil sealing lips at least in L type skeleton (81) bottom, the size of oil sealing lip is increased outward successively by interior, outer oil seal lip and skeleton (81) form the V-type cavity, and the F type head that described dust-proof cover (2) is crooked places in the V-type cavity.
10. the universal joint of band self-locking dust-proof sealing structure according to claim 6, it is characterized in that described oil sealing (8) is provided with inside and outside two oil sealing lips at least in L type skeleton (81) bottom, the size of oil sealing lip is increased outward successively by interior, outer oil seal lip and skeleton (81) form the V-type cavity, and the F type head that described dust-proof cover (2) is crooked places in the V-type cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420082640 CN2733084Y (en) | 2004-09-03 | 2004-09-03 | Universal joint with self-locking dustproof sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420082640 CN2733084Y (en) | 2004-09-03 | 2004-09-03 | Universal joint with self-locking dustproof sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2733084Y true CN2733084Y (en) | 2005-10-12 |
Family
ID=35068925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420082640 Expired - Fee Related CN2733084Y (en) | 2004-09-03 | 2004-09-03 | Universal joint with self-locking dustproof sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2733084Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101634344B (en) * | 2009-05-21 | 2012-04-18 | 万向钱潮股份有限公司 | Universal joint of composite bearing structure and production method |
| CN104948598A (en) * | 2010-07-19 | 2015-09-30 | 德纳汽车系统集团有限责任公司 | Constant velocity joint assembly and method of securing a shaft to the assembly |
| CN110030288A (en) * | 2019-04-29 | 2019-07-19 | 万向钱潮股份有限公司 | One kind can absorbing long-life universal joint |
-
2004
- 2004-09-03 CN CN 200420082640 patent/CN2733084Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101634344B (en) * | 2009-05-21 | 2012-04-18 | 万向钱潮股份有限公司 | Universal joint of composite bearing structure and production method |
| CN104948598A (en) * | 2010-07-19 | 2015-09-30 | 德纳汽车系统集团有限责任公司 | Constant velocity joint assembly and method of securing a shaft to the assembly |
| CN104948598B (en) * | 2010-07-19 | 2018-05-18 | 德纳汽车系统集团有限责任公司 | Constant speed joint component and the method for securing the shaft to the component |
| CN110030288A (en) * | 2019-04-29 | 2019-07-19 | 万向钱潮股份有限公司 | One kind can absorbing long-life universal joint |
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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: 20051012 Termination date: 20130903 |