CN203836220U - Low-friction oil seal of power mechanical rotary shaft - Google Patents
Low-friction oil seal of power mechanical rotary shaft Download PDFInfo
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- CN203836220U CN203836220U CN201420260067.4U CN201420260067U CN203836220U CN 203836220 U CN203836220 U CN 203836220U CN 201420260067 U CN201420260067 U CN 201420260067U CN 203836220 U CN203836220 U CN 203836220U
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- sealing
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Abstract
The utility model discloses a low-friction oil seal of power mechanical rotary shaft. The oil seal is characterized in that a framework and a rubber body are included, the framework is a metal stamped element, wraps the outer side of the rubber body and is attached to the rubber body in an adhesive mode, the bottom of the rubber body is provided with a wavy groove, and a spiral groove and a spiral protrusion are arranged on a sealing face of the inner side of the rubber body. The low-friction oil seal has the advantages that no spring is used, the spiral groove and the spiral protrusion are additionally arranged on the sealing face of the inside of the rubber body, and low-friction long-life sealing is achieved through the wavy groove in the bottom of the rubber body.
Description
Technical field
The utility model relates to Sealing, relates in particular to a kind of low friction oil sealing of dynamic power machine running shaft.
Background technique
Traditional dynamic power machine rotary shaft oil seal forms (as shown in Figure 1) by skeleton A, rubber body B and spring C, use spring is exerted pressure, compressing rubber is attached to the surface of running shaft, play seal action, commercial seal designs power is about 0.1N/mm at present, in use can produce a large amount of power consumpitons.
Summary of the invention
For the problems referred to above, the technical problems to be solved in the utility model is to provide a kind of low friction oil sealing of dynamic power machine running shaft.
The low friction oil sealing of a kind of dynamic power machine running shaft of the present utility model, it is characterized in that: comprise skeleton and rubber body, described skeleton is metallic stamping pieces, skeleton is coated in the lateral part of rubber body, and bond with rubber body, described rubber body bottom is provided with waveform groove, and the sealing surface of described rubber body inside portion is provided with spiral grooves and spiral salient.
Low friction oil sealing of the present utility model is not used spring, is attached to the sealing surface of running shaft by rubber body, is designed with spiral grooves and the spiral salient mating with axle sense of rotation on the sealing surface of the inside portion of rubber body, reaches sealing effect.In order to compensate because there is no spring, the risk that causes the eccentric ability of sealed lip to decline, has increased waveform groove, in design to increase the follow ability of seal lip to eccentric shaft.
The beneficial effects of the utility model: low friction oil sealing of the present utility model do not use spring, the sealing surface increase of rubber body inside portion has spiral grooves and spiral salient, and the waveform ditch of rubber body bottom is realized low friction, long-life sealing.
Accompanying drawing explanation
For ease of explanation, the utility model is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is the cross-sectional view of traditional power machinery rotary shaft oil seal.
Fig. 2 is cross-sectional view of the present utility model.
Embodiment
As shown in Figure 1, this embodiment is by the following technical solutions: a kind of low friction oil sealing of dynamic power machine running shaft, it is characterized in that: comprise skeleton 1 and rubber body 2, described skeleton 1 is metallic stamping pieces, skeleton 1 is bonded in the lateral part 21 of rubber body 2, described rubber body 2 bottoms are provided with waveform groove 22, and described rubber body 2 inside portion 23 sealing surfaces are provided with spiral grooves 24 and spiral salient 25.
The power that low friction oil sealing of the present utility model produces be only 0.025N/mm, and this other power of level, for the low friction oil sealing of traditional dynamic power machine running shaft, is only low friction oil sealing 20% more of the mechanical running shaft of traditional power, and effect is surprising.By aspect the environmental protection and energy saving of automobile, with regard to the power consumpiton producing with regard to himself, the variation that produces huge matter.Simultaneously due in the situation that lower footprint pressure is realized sealing, thereby do enough to obtain a sealing life more of a specified duration.
Low friction oil sealing of the present utility model is not used spring, is attached to the sealing surface of running shaft by rubber body 2, is designed with the spiral grooves 24 and the spiral salient 25 that mate with axle sense of rotation on the sealing surface of the inside portion of rubber body 2, reaches sealing effect.In order to compensate because there is no spring, the risk that causes the eccentric ability of sealed lip to decline, has increased waveform groove 22, in design to increase the follow ability of seal lip to eccentric shaft.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. the low friction oil sealing of a dynamic power machine running shaft, it is characterized in that: comprise skeleton and rubber body, described skeleton is metallic stamping pieces, skeleton is coated in the lateral part of rubber body, and bond with rubber body, described rubber body bottom is provided with waveform groove, and the sealing surface of described rubber body inside portion is provided with spiral grooves and spiral salient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420260067.4U CN203836220U (en) | 2014-05-21 | 2014-05-21 | Low-friction oil seal of power mechanical rotary shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420260067.4U CN203836220U (en) | 2014-05-21 | 2014-05-21 | Low-friction oil seal of power mechanical rotary shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203836220U true CN203836220U (en) | 2014-09-17 |
Family
ID=51514062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420260067.4U Active CN203836220U (en) | 2014-05-21 | 2014-05-21 | Low-friction oil seal of power mechanical rotary shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203836220U (en) |
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2014
- 2014-05-21 CN CN201420260067.4U patent/CN203836220U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |