CN204784726U - Low friction oil blanket - Google Patents
Low friction oil blanket Download PDFInfo
- Publication number
- CN204784726U CN204784726U CN201520392721.1U CN201520392721U CN204784726U CN 204784726 U CN204784726 U CN 204784726U CN 201520392721 U CN201520392721 U CN 201520392721U CN 204784726 U CN204784726 U CN 204784726U
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- Prior art keywords
- oil sealing
- low friction
- oil blanket
- main lip
- lip
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Abstract
The utility model discloses a low friction oil blanket, wherein, including metal framework and oil blanket body, the cladding of oil blanket body is in metal framework's the outside, the oil blanket body is including being used for with the oil blanket outer lane of pilot hole adaptation, being used for sealing at the main lip of rotation axis outer wall and being used for sealing the vice lip of rotation axis outer wall, oil blanket outer lane, main lip and vice lip are integrated into one piece, the coating has the coating on the main lip, the coating sets up main lip with between the outer wall of rotation axis. The utility model provides an it is integrated into one piece that low friction rubber sets up the oil blanket body, recycles the high elasticity of integrated into one piece's oil blanket body, has reduced the seize power between oil blanket and the rotation axis, sets up the coating and reduce frictional force between oil blanket body and the rotation axis on the oil blanket body to a low friction oil blanket who compromises seize power and frictional force has been realized.
Description
Technical field
The utility model relates to the structure of the oil sealing for sealing rotary rotating shaft, particularly relates to a kind of low friction oil sealing.
Background technique
In motor car engine or gearbox, the slip of various mutual motion and rolling member, all will produce fretting wear in mutual movement process, cause energy ezpenditure namely to produce frictional work simultaneously.The existence of frictional work reduces the power of motor, and adds fuel oil consumption.It is generally acknowledged, friction consumes the 10%-20% accounting for the automobile fuel consumption energy.In order to energy-saving and emission-reduction, improve engine power and reduce frictional loss, increasing automobile starts the technology adopting antifriction at present.The bent axle of such as motor is the parts of a High Rotation Speed, the bearing shell coordinated with it, and oil sealing etc. all have relative movement with it, how to reduce the frictional loss that these relative movement by-products are raw, is a focus of research at present.
From the development of traditional rotary oil seal, mainly experienced by three generations's oil seal technique altogether at present.First coordinates seize spring on behalf of fluorine rubber seal, and be widely used in Ge great depot before such oil sealing, but this oil sealing is due to the existence of seize spring, result in larger seize power and wearing and tearing, frictional work is very high.
Fig. 1 is the structure sectional view of second generation oil sealing in prior art, as shown in Figure 1, this oil sealing comprises oil sealing outer ring 1 ＇, main lip 2 ＇ and secondary lip 3 ＇, main lip 2 ＇ and secondary lip 3 ＇ is adhesively fixed, main lip 2 ＇ adopts teflon (PTFE) material, is sealed on the outer wall of running shaft 4.Due to the self lubricity of polytetrafluoroethylmaterial material, cause it to have lower friction factor, and eliminate the seize spring in first generation oil sealing, serve the effect reducing friction.Because PTFE has good resistance to medium, the life-span is longer.But PTFE not easily degrades, seize power is comparatively large, and is difficult to the disposable online leak-testing of motor by main engine factory, is therefore proposed again third generation oil seal technique.
Third generation oil sealing and fluorine rubber seal.This oil sealing is similar with the PTFE oil sealing of the second generation in structural type, mainly instead of the main lip of PTFE material with the main lip of fluorine rubber material.Because the elasticity of fluorine rubber is comparatively large, be better than second generation oil sealing with the laminating of axle, and do not have seize spring equally, seize power reduces greatly, is better than PTFE oil sealing to the impact of frictional work.
But the low friction oil sealing of the third generation still existing defects, be mainly manifested in fluorine rubber under the effect of high-speed rotating shaft, lip surfaces serious wear, and rubber is under the immersion of high temperature oil, performance can produce larger reduction, and the life-span reduces, and this is unfavorable for sealing equally.
Model utility content
The utility model provides a kind of low friction oil sealing, to solve the problems of the prior art, takes into account the frictional force between oil sealing and running shaft and the requirement of seize power, improves the durability of oil sealing.
The utility model provides a kind of low friction oil sealing, and wherein, comprise metal frame and oil sealing body, described oil sealing body is coated on the outside of described metal frame;
Described oil sealing body comprises for the oil sealing outer ring of pilot hole adaptation, for being sealed in the main lip of running shaft outer wall and the secondary lip for being sealed in described running shaft outer wall, described oil sealing outer ring, main lip and secondary lip are formed in one;
Described main lip is coated with coating, and described coating is arranged between described main lip and the outer wall of described running shaft.
Low friction oil sealing as above, wherein, preferably: the material of described oil sealing outer ring, main lip and secondary lip is fluorine rubber, and the material of described coating is teflon.
Low friction oil sealing as above, wherein, preferably: the thickness of described coating is 10 ± 1 microns.
Low friction oil sealing as above, wherein, preferably: described main lip is provided with continuous print towards the side of described running shaft and rotates back to flow liner.
Low friction oil sealing as above, wherein, preferably: the quantity of described backflow line is more than three.
Low friction oil sealing as above, wherein, preferably: the outer wall of described oil sealing outer ring is provided with many raised ribs.
Low friction oil sealing as above, wherein, preferably: described metal frame is low carbon steel skeleton.
The low friction rubber that the utility model provides arranges oil sealing body and is formed in one, recycle the high elasticity of integrated oil sealing body, reduce the seize power between oil sealing and running shaft, oil sealing body arranges coating to reduce frictional force between oil sealing body and running shaft, thus achieve a kind of low friction oil sealing taking into account seize power and frictional force.
Accompanying drawing explanation
Fig. 1 is the structure sectional view of second generation oil sealing in prior art;
The low rubbing oil seal structure schematic diagram that Fig. 2 provides for the utility model embodiment.
Embodiment
Below in conjunction with embodiment, the utility model is described in detail.The identical reference character of wherein identical component represents.It should be noted that, the word "front", "rear" of use is described below, "left", "right", "up" and "down" refer to direction in accompanying drawing, word " interior " and " outward " refer to the direction towards or away from particular elements geometrical center respectively.
The low rubbing oil seal structure schematic diagram that Fig. 2 provides for the utility model embodiment.The utility model embodiment provides a kind of low friction oil sealing, can be used for canned motor crankshaft front end and rear end, camshaft external part, or the automotive-type running shaft such as gearbox semiaxis, also may be used for the rotation axis seal of other field.
As shown in Figure 2, this low rubbing oil package draws together metal frame 5 and oil sealing body, and oil sealing body is coated on the outside of metal frame 5.Metal frame 5 plays the effect supporting oil sealing body, and oil sealing body comprises oil sealing outer ring 1, main lip 2 and secondary lip 3.Oil sealing outer ring 1 is for adaptive with pilot hole, and main lip 2, for being sealed in the outer wall of described running shaft 4, plays the effect of sealing to running shaft 4.Secondary lip 3, for being sealed in the outer wall of described running shaft 4, plays the effect of seal isolation external dust.
Oil sealing outer ring 1, main lip 2 and secondary lip 3 are formed in one, and wherein, main lip 2 is coated with coating 6, this coating 6 is arranged between described main lip 2 and the outer wall of described running shaft 4.The effect of coating 6 reduces the frictional force between oil sealing body and running shaft 4, integrated oil sealing body is set to the material with suitable elasticity simultaneously, to ensure suitable seize power, when ensureing suitable seize power, friction is reduced by coating 6, thus solve the problems of the prior art, take into account the frictional force between oil sealing body and running shaft and the requirement of seize power simultaneously.
Preferably, the material of described oil sealing outer ring 1, main lip 2 and secondary lip 3 is fluorine rubber, and sulfuration is fixed on metal frame 5, and the material of described coating 6 is teflon.Metal frame 5 is preferably low carbon steel skeleton, and play the effect supporting vulcanizable fluororubber and boundary dimension, fluorine rubber mainly plays seal action, and polytetrafluorethylecoatings coatings is used for reducing friction factor.
The low friction oil sealing that the utility model embodiment provides is mounted in a pilot hole by extruding, wherein, can arrange oil sealing outer ring 1 with this pilot hole is interference fit, one is the effect playing fixing oil sealing rigging position, two is the effects playing sealing, prevents medium from being leaked by oil sealing outer ring and enters in body in outside or foreign matter.
Preferably, the outer wall of described oil sealing outer ring 1 is provided with many raised ribs 7, this raised ribs 7 can be formed in one with oil sealing outer ring 1 to form.The interference fit of oil sealing outer ring 1 and pilot hole is realized by arranging raised ribs 7.It will be appreciated by persons skilled in the art that the quantity of this raised ribs 7 can be many, arrange according to the boundary dimension of oil sealing outer ring 1 and seal request, do not do concrete restriction at this.
When this low friction oil sealing is got into pilot hole, main lip 2 and running shaft 4 realize sealing, and main lip 2 also adopts fluorine rubber, the same with the material of oil sealing outer ring 1, and fluorine rubber can play the high temperature resistant effect with oil resistant preferably.
Further, at main lip 2, the side of described running shaft 4 can be provided with continuous print and rotate back to flow liner (not shown), coordinate by rational pitch and the degree of depth effect playing pump oil, consider rational seize power, can arrange this quantity rotating back to flow liner is more than three.After rotating back to flow liner compression molding, then be sprayed on the sealing surface of main lip by equipment equably by the Teflon fluid configured, coating thickness is 10 microns of effects, and in the present embodiment, the thickness of coating is 10 ± 1 microns.At a suitable temperature, teflon and fluorine rubber combine, and reach the object reducing frictional work.
The low friction oil sealing that the utility model embodiment provides, the raising of its durability is mainly reflected in the contact surface that polytetrafluorethylecoatings coatings covers main lip and running shaft, reduce the direct contact between oil sealing body and running shaft that fluorine rubber makes, thus add wear-resisting property, improve the life-span of oil sealing.By correlation test digital proof, this polytetrafluorethylecoatings coatings is all effective within the scope of the mileage of 100,000 kilometers.After 100,000 kilometers, cover coat thickness has certain loss, but now due to the long work between main lip and running shaft, seize power has certain decline, also serves the effect of the low friction effect of continuity and raising durability to a certain extent.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment's technological scheme of the utility model.
Claims (7)
1. a low friction oil sealing, is characterized in that, comprise metal frame and oil sealing body, described oil sealing body is coated on the outside of described metal frame;
Described oil sealing body comprises for the oil sealing outer ring of pilot hole adaptation, for being sealed in the main lip of running shaft outer wall and the secondary lip for being sealed in described running shaft outer wall, described oil sealing outer ring, main lip and secondary lip are formed in one;
Described main lip is coated with coating, and described coating is arranged between described main lip and the outer wall of described running shaft.
2. low friction oil sealing according to claim 1, is characterized in that: the material of described oil sealing outer ring, main lip and secondary lip is fluorine rubber, and the material of described coating is teflon.
3. low friction oil sealing according to claim 2, is characterized in that: the thickness of described coating is 10 ± 1 microns.
4. according to the arbitrary described low friction oil sealing of claim 1-3, it is characterized in that: described main lip is provided with continuous print towards the side of described running shaft and rotates back to flow liner.
5. low friction oil sealing according to claim 4, is characterized in that: the quantity of described backflow line is more than three.
6., according to the arbitrary described low friction oil sealing of claim 1-3, it is characterized in that: the outer wall of described oil sealing outer ring is provided with many raised ribs.
7., according to the arbitrary described low friction oil sealing of claim 1-3, it is characterized in that: described metal frame is low carbon steel skeleton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520392721.1U CN204784726U (en) | 2015-06-08 | 2015-06-08 | Low friction oil blanket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520392721.1U CN204784726U (en) | 2015-06-08 | 2015-06-08 | Low friction oil blanket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204784726U true CN204784726U (en) | 2015-11-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520392721.1U Expired - Fee Related CN204784726U (en) | 2015-06-08 | 2015-06-08 | Low friction oil blanket |
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| CN (1) | CN204784726U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027236A (en) * | 2018-09-17 | 2018-12-18 | 嘉科（安徽）密封技术有限公司 | A kind of PTFE oil sealing with protective case |
| CN109458458A (en) * | 2018-11-21 | 2019-03-12 | 陕西法士特汽车传动集团有限责任公司 | High-speed oil seal structure, gearbox and speed reducer |
| CN111043288A (en) * | 2019-12-31 | 2020-04-21 | 恒安(中国)纸业有限公司 | Speed reducer output shaft sealing gland and sealing process thereof |
-
2015
- 2015-06-08 CN CN201520392721.1U patent/CN204784726U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027236A (en) * | 2018-09-17 | 2018-12-18 | 嘉科（安徽）密封技术有限公司 | A kind of PTFE oil sealing with protective case |
| CN109458458A (en) * | 2018-11-21 | 2019-03-12 | 陕西法士特汽车传动集团有限责任公司 | High-speed oil seal structure, gearbox and speed reducer |
| CN111043288A (en) * | 2019-12-31 | 2020-04-21 | 恒安(中国)纸业有限公司 | Speed reducer output shaft sealing gland and sealing process thereof |
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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: 20151118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |