CN203297402U - Universal joint and spindle head dustproof sealing part thereof - Google Patents
Universal joint and spindle head dustproof sealing part thereof Download PDFInfo
- Publication number
- CN203297402U CN203297402U CN2013202486617U CN201320248661U CN203297402U CN 203297402 U CN203297402 U CN 203297402U CN 2013202486617 U CN2013202486617 U CN 2013202486617U CN 201320248661 U CN201320248661 U CN 201320248661U CN 203297402 U CN203297402 U CN 203297402U
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- Prior art keywords
- seal
- dust
- universal joint
- lip
- spindle nose
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- Expired - Fee Related
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- Sealing With Elastic Sealing Lips (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model relates to a spindle head dustproof sealing part of a universal joint, consisting of a sealing part main body and a sealing part framework coated on the outer side of the sealing part main body, wherein the outer side surface of the sealing part framework is in the shape of two-step; the sealing part main body comprises a grease seal ring and a dust ring integrated into a whole, the grease seal ring comprises a seal ring body and at least two seal lips inclined relative to the seal ring body, and the seal lips inclines towards the direction of the dust ring; and the dust ring comprises a dust ring body, an outer dust lip and an inner dust lip, the inner dust lip is triangular, one side of the triangle coincides with the dust ring body, and the outer dust lip inclines towards the outside of the dust ring. The shaft head dustproof sealing part of the universal joint is arranged at the connected part of a bearing and the spindle head of a cross spindle of the universal joint, the seal lips and the inner dust lip are in radial interference fit with the spindle head of the cross spindle, and the outer dust lip is in axial interference fit with the spindle head of the cross spindle. The universal joint and the spindle head dustproof sealing part thereof have the advantages of good sealing effect, low cost, convenience in assembly and wide application range.
Description
Technical field
The utility model relates to universal joint and makes field, particularly a kind of universal joint and spindle dustproof Sealing thereof.
Background technique
Existing universal joint generally all is comprised of cross axle, bearing and oil nozzle, and under the environment many at dust, that silt is many, the universal joint of use is with sealing configuration, and its conventional design comprises the assemblies such as dust guard, grease seal spare.As depicted in figs. 1 and 2, be the structural representation of existing sealing configuration, adopt respectively nylon dust guard and irony dust guard.There is following shortcoming in the black box of these structures: 1, dust sealing weak effect makes universal joint not have effect, and affects working life; 2, sealing configuration takes up room greatly, easily causes the shortcomings such as Assembly Interference, assembling inconvenience; Though 3, on cross axle, dust guard is arranged, be easy to come off when assembling, and also frangible, assembling capacity is poor; 4, manufacture cost is high.
The model utility content
The technical problems to be solved in the utility model is: in order to overcome in prior art, the sealing configuration dust sealing weak effect of universal joint, assembling capacity is poor and the high deficiency of manufacture cost, and the utility model provides a kind of universal joint and spindle dustproof Sealing thereof.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of universal joint spindle nose dust seal, be comprised of seal body and the sealing element framework that is coated on the described seal body outside, the outer surface of described sealing element framework is the two-stage stairstepping; Described seal body comprises grease seal ring and dust ring, described grease seal ring and dust ring are structure as a whole, described grease seal ring comprises seal ring body and at least two seal lips that are arranged on seal ring body inner ring and the inclination of relative seal ring body, and described seal lip tilts towards the direction of dust ring; Described dust ring comprises the dust ring body, away from the outer dustproof lip of grease seal ring with near the interior dustproof lip of grease seal ring, described interior dustproof lip is triangle, described leg-of-mutton one side overlaps with described dust ring body, and described outer dustproof lip is towards the circle outer incline of dust ring.The outer surface of sealing element framework is the two-stage stairstepping, is conducive to like this layout design of assembling and positioning and seal lip; Sealing element framework is coated on the seal body outside, can protect seal body like this, prevents that it is aging; Seal lip is mainly used in preventing the leakage of bearing internal grease; Outer dustproof lip and interior dustproof lip are mainly used in preventing that external dust and silt from entering universal joint bearing inside.
In order to guarantee that grease seal ring has good elasticity, avoid Fast Wearing, have again good sealing simultaneously, described seal lip is with the seal ring body shaft to the angle that becomes 30 °～60 °, and the thickness of described seal lip is 0.3mm～1.2mm.
In order to guarantee that dust ring has good elasticity, avoid Fast Wearing, have again good sealing simultaneously, described outer dustproof lip is with the dust ring body shaft to the angle that becomes 5 °～30 °, and the thickness of described outer dustproof lip is 0.5mm～1.5mm.
In order to save installing space, as preferably, the inboard even thickness to the outside of described sealing element framework, integral body is the two-stage stairstepping.
Described sealing element framework is made by low carbon steel.
Described seal body is made by rubber.
A kind of universal joint, comprise cross axle and the bearing of being located on described cross axle spindle nose, the joint of described bearing and cross axle spindle nose is provided with described universal joint spindle nose dust seal, described seal lip and interior dustproof lip all with cross axle spindle nose radial interference fit, described outer dustproof lip and the axial interference fit of cross axle spindle nose.
The magnitude of interference of described seal lip and cross axle spindle nose radial interference fit is 0.1～0.5.
The magnitude of interference of described interior dustproof lip and cross axle spindle nose radial interference fit is 0.1～0.3.
The magnitude of interference of described outer dustproof lip and the axial interference fit of cross axle spindle nose is 0.2～0.5.
The beneficial effects of the utility model are, universal joint of the present utility model and spindle dustproof Sealing thereof, and the dust seal good sealing effect, cost is low, and is easy to assembly, applied widely.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of the existing sealing configuration of universal joint with the nylon dust guard.
Fig. 2 is the structural representation of the existing sealing configuration of universal joint with the irony dust guard.
Fig. 3 is the optimum embodiment's of universal joint of the present utility model assembling schematic diagram.
Fig. 4 is the optimum embodiment's of universal joint spindle nose dust seal of the present utility model assembling schematic diagram.
In Fig. 1 100, the nylon dust guard, 101, grease seal spare.
In Fig. 2 200, the irony dust guard, 201, grease seal spare.
In Fig. 3, Fig. 41, cross axle, 2, bearing, 3, universal joint spindle nose dust seal, 31, seal body, 311-1, seal ring body, 311-2, seal lip, 312-1, dust ring body, 312-2, outer dustproof lip, 312-3, interior dustproof lip, 32, sealing element framework.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
As shown in Figure 3, Figure 4, the optimum embodiment's of universal joint of the present utility model and universal joint spindle nose dust seal thereof assembling schematic diagram.
Universal joint spindle nose dust seal in the present embodiment, be comprised of rubber seal main body 31 and the low carbon steel sealing element framework 32 that is coated on seal body 31 outsides, the inboard even thickness to the outside of sealing element framework 32, and integral body is the two-stage stairstepping.
Seal body 31 comprises grease seal ring and dust ring, grease seal ring and dust ring are structure as a whole, grease seal ring comprises seal ring body 311-1 and at least two seal lip 311-2 that are arranged on seal ring body 311-1 inner ring and relative seal ring body 311-1 inclination, and seal lip 311-2 tilts towards the direction of dust ring.Seal lip 311-2 axially becomes the angle of 30 °～60 ° with seal ring body 311-1, and the thickness of seal lip 311-2 is 0.3mm～1.2mm.
Dust ring comprises dust ring body 312-1, away from the outer dustproof lip 312-2 of grease seal ring with near the interior dustproof lip 312-3 of grease seal ring, the triangle of interior dustproof lip 312-3 for through fillet, processing, leg-of-mutton one side overlaps with dust ring body 312-1, and outer dustproof lip 312-2 is towards the circle outer incline of dust ring.Outer dustproof lip 312-2 axially becomes the angle of 5 °～30 ° with dust ring body 312-1, and the thickness of outer dustproof lip 312-2 is 0.5mm～1.5mm.
The optimum embodiment of universal joint of the present utility model, comprise cross axle 1 and the bearing 2 of being located on cross axle 1 spindle nose, bearing 2 is provided with described universal joint spindle nose dust seal 3 with the joint of cross axle 1 spindle nose, seal lip 311-2 and interior dustproof lip 312-3 all with cross axle 1 spindle nose radial interference fit, magnitude of interference is respectively 0.1～0.5 and 0.1～0.3; Outer dustproof lip 312-2 and the cross axle 1 axial interference fit of spindle nose, magnitude of interference is 0.2～0.5.
Take above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, the relevant staff can in the scope that does not depart from this model utility technological thought, carry out various change and modification fully.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to the claim scope.
Claims (10)
1. universal joint spindle nose dust seal is characterized in that: be comprised of seal body (31) and the sealing element framework (32) that is coated on described seal body (31) outside, the outer surface of described sealing element framework (32) is the two-stage stairstepping; Described seal body (31) comprises grease seal ring and dust ring, described grease seal ring and dust ring are structure as a whole, described grease seal ring comprises seal ring body (311-1) and at least two seal lips (311-2) that are arranged on seal ring body (311-1) inner ring and relative seal ring body (311-1) inclination, and described seal lip (311-2) tilts towards the direction of dust ring; Described dust ring comprises dust ring body (312-1), away from the outer dustproof lip (312-2) of grease seal ring with near the interior dustproof lip (312-3) of grease seal ring, described interior dustproof lip (312-3) is triangle, described leg-of-mutton one side overlaps with described dust ring body (312-1), and described outer dustproof lip (312-2) is towards the circle outer incline of dust ring.
2. universal joint spindle nose dust seal as claimed in claim 1, it is characterized in that: described seal lip (311-2) axially becomes the angle of 30 °～60 ° with seal ring body (311-1), and the thickness of described seal lip (311-2) is 0.3mm～1.2mm.
3. universal joint spindle nose dust seal as claimed in claim 1, it is characterized in that: described outer dustproof lip (312-2) axially becomes the angle of 5 °～30 ° with dust ring body (312-1), and the thickness of described outer dustproof lip (312-2) is 0.5mm～1.5mm.
4. universal joint spindle nose dust seal as claimed in claim 1 is characterized in that: the inboard even thickness to the outside of described sealing element framework (32), integral body is the two-stage stairstepping.
5. universal joint spindle nose dust seal as claimed in claim 1, it is characterized in that: described sealing element framework (32) is made by low carbon steel.
6. universal joint spindle nose dust seal as claimed in claim 1, it is characterized in that: described seal body (31) is made by rubber.
7. universal joint, comprise cross axle (1) and be located at bearing (2) on described cross axle (1) spindle nose, it is characterized in that: described bearing (2) is provided with as the described universal joint spindle nose of any one in claim 1-6 dust seal (3) with the joint of cross axle (1) spindle nose, described seal lip (311-2) and interior dustproof lip (312-3) all with cross axle (1) spindle nose radial interference fit, described outer dustproof lip (312-2) and the axial interference fit of cross axle (1) spindle nose.
8. universal joint as claimed in claim 7 is characterized in that: described seal lip (311-2) is 0.1～0.5 with the magnitude of interference of cross axle (1) spindle nose radial interference fit.
9. universal joint as claimed in claim 7 is characterized in that: described interior dustproof lip (312-3) is 0.1～0.3 with the magnitude of interference of cross axle (1) spindle nose radial interference fit.
10. universal joint as claimed in claim 7 is characterized in that: described outer dustproof lip (312-2) is 0.2～0.5 with the magnitude of interference of the axial interference fit of cross axle (1) spindle nose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202486617U CN203297402U (en) | 2013-05-09 | 2013-05-09 | Universal joint and spindle head dustproof sealing part thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202486617U CN203297402U (en) | 2013-05-09 | 2013-05-09 | Universal joint and spindle head dustproof sealing part thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203297402U true CN203297402U (en) | 2013-11-20 |
Family
ID=49573410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202486617U Expired - Fee Related CN203297402U (en) | 2013-05-09 | 2013-05-09 | Universal joint and spindle head dustproof sealing part thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203297402U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470765A (en) * | 2013-09-27 | 2013-12-25 | 太仓康茂电子有限公司 | Framework type dust-proof ring |
| CN108412905A (en) * | 2017-02-09 | 2018-08-17 | 斯凯孚公司 | Universal joint bearing |
-
2013
- 2013-05-09 CN CN2013202486617U patent/CN203297402U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470765A (en) * | 2013-09-27 | 2013-12-25 | 太仓康茂电子有限公司 | Framework type dust-proof ring |
| CN108412905A (en) * | 2017-02-09 | 2018-08-17 | 斯凯孚公司 | Universal joint bearing |
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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: 20131120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |