CN2924150Y - Universal joint sealing structure - Google Patents
Universal joint sealing structure Download PDFInfo
- Publication number
- CN2924150Y CN2924150Y CN 200620105163 CN200620105163U CN2924150Y CN 2924150 Y CN2924150 Y CN 2924150Y CN 200620105163 CN200620105163 CN 200620105163 CN 200620105163 U CN200620105163 U CN 200620105163U CN 2924150 Y CN2924150 Y CN 2924150Y
- Authority
- CN
- China
- Prior art keywords
- dust
- oil sealing
- proof cover
- skeleton
- sealing
- 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 relates to a gimbal in the mechanical filed, in particular to a new gimbal sealing structure. The utility model mainly aims at the technical problems of that the dustproof shield of the prior art has not enough sealing, is easy to be mixed with the impurity such as the slurry, etc., the rubber oil sealing is easy to be abraded, and a needle roller retaining ring shall be increased in order to prevent the reverse of the needle roller, etc. and provides a gimbal sealing structure which has the advantages of that the structure is reasonable, the dustproof shield has good sealing, the impurity such as the slurry, etc. is not easy to be mixed, the rubber oil sealing is not easy to be abraded, and the reverse of the needle roller can be prevented, etc. The utility model consists of a cross shaft, an external ring sleeved on the cross shaft, the needle roller between the cross shaft and the external ring, and an oil sealing at the end part of the external ring; the oil sealing is provided with a convex body which is embedded into the dustproof shield which is tightly assembled with the convex body of the oil sealing. The embedded part of the convex body of the oil sealing presents S-type and the external side of the dustproof is provide with a framework.
Description
Technical field
The utility model relates to a kind of universal joint of mechanical field, especially relates to a kind of novel universal joint sealing configuration.
Background technique
At present, existing Hooke's joint generally is made up of cross axle, bearing, dust-proof cover, it mainly is to prevent that by U type or S type dust-proof cover impurity such as dust from entering bearing, but such dust-proof cover is sealing fully not, the impurity that can only prevent larger particles enters, thereby impurity such as tiny dust and mud enter the working life that bearing influences universal joint easily.In addition,, adopt special needle roller back-up ring to prevent down pin, with regard to the corresponding number of spare parts that increased, increase cost like this for the tip needle roller.As a kind of patent No. is the Hooke's joint of the band combined seal of CN02264956.5, and his structure is that the utility model relates to a kind of Hooke's joint, especially a kind of improvement to Hooke's joint seal ring and dependency structure thereof.Main technical schemes of the present utility model is: the Hooke's joint of this band combined seal, comprise cross axle and the outer ring of being located at its spindle nose, between is equipped with needle roller, and is provided with oil sealing in its port part, it is characterized in that the arranged outside annular recess at the outer ring close end; Between end, outer ring and cross axle, be provided with combined seal; Described combined seal is made of the protruding clasp of being located at its inboard lip, being located at the oil seal body of its periphery and annular oil seal skeleton therebetween and oil seal body inboard; Described protruding clasp is buckled in the annular recess.The shortcoming of the Hooke's joint of this band combined seal is that the dust-proof cover sealing is not enough, sneak into impurity such as mud easily, and rubber oil sea is easy to wear, for preventing that needle roller from falling pin and will increase the needle roller back-up ring, and complex structure, part is many.
Summary of the invention
The utility model mainly is not enough at existing in prior technology dust-proof cover sealing, sneak into impurity such as mud easily, and rubber oil sea is easy to wear, for preventing that needle roller from falling pin and will increase the technical problem of needle roller back-up ring etc., provide a kind of rational in infrastructure, the dust-proof cover good airproof performance is not easy to sneak into impurity such as mud, rubber oil sea is not easy to wear, can be to prevent that needle roller from falling the universal joint sealing configuration of advantages such as pin.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: be made up of cross axle, the oil sealing that is enclosed within outer ring on the cross axle and the needle roller between cross axle and the outer ring, outer ring port part, oil sealing has a convex body, the oil sealing convex body embeds in the dust-proof cover, the convex body of dust-proof cover and oil sealing closely cooperates, oil sealing convex body embedded part structure is " S " type, and the dust-proof cover outside has skeleton; The design of boss stretched, and design chamfering cooperate with band skeleton dust-proof cover effectively, and oil sealing adopts the design of " S " type, can play the anti abrasive effect of leakage of oil that prevents; The convex body of oil sealing front partly adopts the bigger angle of swinging to, and is beneficial to assembling.
As preferably, the peripheral skeleton edge that axially protrudes of described dust-proof cover, the projection warp-wise is parallel with skeleton; Adopt this structure can effectively prevent entering of granule and dust.
As preferably, described dust-proof cover has a depression near axial region, and depression is connected with skeleton near the part of boss, and the section of depression is " S " type; " S " type structure can effectively prevent entering of granule and dust; The circular arc type design of protruding is adopted in the place that band skeleton dust-proof cover contacts with oil sealing, and magnitude of interference is 0.2-0.4mm, and inside falls in part and adopts the design of indent circular arc type.
As preferably, described oil sealing and needle roller touching position be camber and to needle roller along stretching, oil sealing and outer ring touching position are provided with a boss; Adopt camber and after stretch, can prevent that needle roller from falling pin; The employing boss designs, and can effectively locate the assembling degree of depth of oil sealing; Boss and outer ring on the oil sealing closely cooperate, and prevent that particle and dust from entering oil sealing.
As preferably, described oil sealing is an annular oil seal of being close to the outer ring, and the internal diameter of outer ring is identical with the external diameter of oil sealing, and the skeleton of annular dust-proof cover is stuck on the cross axle, and dust-proof cover embeds in the skeleton; Oil sealing is close to the outer ring, contacts with needle roller.
As preferably, the section of the skeleton of described dust-proof cover is " U " type structure, and " U " type port is parallel to each other, and dust-proof cover embeds in the skeleton; " U " type structure can be blocked dust-proof cover conveniently and solidly.
As preferably, described cross axle diameter of axle root is provided with step, and the skeleton of dust-proof cover is arranged on the step; Step can better block the skeleton of dust-proof cover.
As preferably, described oil sealing with the outer ring interference fit; Adopt this to re-mount mode and can reduce number of spare parts; The oil sealing internal diameter is more bigger than the external diameter of the cross axle diameter of axle, leaves the gap of 0.2mm.
As preferably, described oil sealing and skeleton are irony, and dust-proof cover is the rubber material; Irony oil sealing and bellows cooperate can effectively improve seal degree, reduces entering of particle and dust.
Therefore, the utlity model has characteristics such as simple and reasonable for structure, easy to use, the sealing height, be not easy to sneak into impurity such as mud, effectively prolong product working life, reduce wear, reduce oil and ooze, whole dynamic balance performance height can be and prevents that needle roller from falling the universal joint sealing configuration of advantage such as pin.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is structural representations of band outside framework oil seal of the present utility model;
Accompanying drawing 3 is a kind of structural representations of oil sealing of the present utility model;
Accompanying drawing 4 is a kind of structural representations of dust-proof cover of the present 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 1, the irony Hooke's joint is equipped with periphery 1 in the universal joint outside, between universal joint shaft and peripheral 1 needle roller 2 is arranged, needle roller one side has oil sealing 3, have the outside of oil sealing 3 to be with dust-proof cover 4, dust-proof cover 4 is embedded in the skeleton 6, and oil sealing and skeleton are irony, dust-proof cover is the rubber material, universal joint is provided with a step 5 and skeleton 5 is used for blocking skeleton, oil sealing 3 with outer ring 1 interference fit.
During use, the universal joint coupling shaft, when axle rotated, outer ring, needle roller, cross axle relatively rotated, and between oil sealing and each parts relative rotation took place also, and oil sealing is combined closely with dust-proof cover all the time.
Claims (9)
1. a novel universal saves sealing configuration, form by cross axle, the oil sealing (3) that is enclosed within outer ring (1) (1) on the cross axle and the needle roller (2) between cross axle and outer ring (1), outer ring (1) port part, it is characterized in that oil sealing (3) has a convex body, oil sealing (3) convex body embeds in the dust-proof cover (4), the convex body of dust-proof cover (4) and oil sealing (3) closely cooperates, oil sealing (3) convex body (c) embedded part structure is " S " type, and dust-proof cover (4) outside has skeleton (6).
2. novel universal joint sealing configuration according to claim 1 is characterized in that described dust-proof cover (4) peripheral (e) protrudes skeleton (6) edge, and projection is parallel with skeleton (6).
3. novel universal joint sealing configuration according to claim 1 is characterized in that described dust-proof cover (4) has a depression (d) near axial region, and depression is connected with skeleton (6) near the part of boss, and the section of depression is " S " type.
4. novel universal according to claim 1 joint sealing configuration, it is characterized in that described oil sealing (3) and needle roller (2) touching position be camber (a) and to needle roller (2) along stretching, oil sealing (3) is provided with a boss (b) with outer ring (1) touching position.
5. novel universal joint sealing configuration according to claim 1, it is characterized in that described oil sealing (3) is for being close to the annular oil seal (3) of outer ring (1), the internal diameter of outer ring (1) is identical with the external diameter of oil sealing (3), the skeleton (6) of annular dust-proof cover (4) is stuck on the cross axle, and dust-proof cover (4) embeds in the skeleton (6).
6. novel universal joint sealing configuration according to claim 1 is characterized in that the section of the skeleton (6) of described dust-proof cover (4) is " U " type structure, and " U " type port is parallel to each other, and dust-proof cover (4) embeds in the skeleton (6).
7. novel universal joint sealing configuration according to claim 1 is characterized in that described cross axle diameter of axle root is provided with step (5), and the skeleton (6) of dust-proof cover (4) is arranged on the step (5).
8. novel universal according to claim 1 joint sealing configuration, it is characterized in that described oil sealing (3) with outer ring (1) interference fit.
9. novel universal joint sealing configuration according to claim 1 is characterized in that described oil sealing (3) and skeleton (6) are irony, and dust-proof cover (4) is the rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620105163 CN2924150Y (en) | 2006-06-28 | 2006-06-28 | Universal joint sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620105163 CN2924150Y (en) | 2006-06-28 | 2006-06-28 | Universal joint sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2924150Y true CN2924150Y (en) | 2007-07-18 |
Family
ID=38260582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620105163 Expired - Fee Related CN2924150Y (en) | 2006-06-28 | 2006-06-28 | Universal joint sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2924150Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985558A (en) * | 2019-12-24 | 2020-04-10 | 万向钱潮股份有限公司 | Maintenance type universal joint of annular structure |
-
2006
- 2006-06-28 CN CN 200620105163 patent/CN2924150Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985558A (en) * | 2019-12-24 | 2020-04-10 | 万向钱潮股份有限公司 | Maintenance type universal joint of annular structure |
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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: 20070718 Termination date: 20150628 |
|
| EXPY | Termination of patent right or utility model |