Low-friction reciprocating motion seal component

A technology of reciprocating motion and seals, applied in the direction of engine seals, engine components, springs, etc., can solve problems such as poor seal drainage of lubricants, loss of lubricating oil, dry grinding of seals, etc., and achieve flexibility and follow-up , Axial friction reduction, the effect of reducing friction

Active Publication Date: 2014-04-23
YANTAI RUNFUXIANG OIL SEAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent number is 201320268503, which is an invention patent for a low-friction shock absorber. By setting axial parallel lines on the sealing surface of the seal to reduce the contact area between the sealing surface and the shock absorber shaft, thereby reducing both Compared with ordinary shaft seals, the friction force between them has been greatly improved, but there are also the following deficiencies: First, the simple axial parallel thread structure can be used under different working conditions, especially when the sealed medium is

Method used

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  • Low-friction reciprocating motion seal component
  • Low-friction reciprocating motion seal component
  • Low-friction reciprocating motion seal component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as figure 1 with Image 6 As shown, a low-friction reciprocating seal includes an annular support frame 1 and an annular elastic sealing body 22. The annular elastic sealing body 2 includes at least one sealing lip, and the annular sealing surface formed by the sealing lip is provided with The concave-convex surface ring belt is provided with a plurality of protrusions 10 .

[0049] The shape of the protrusion 10 is polygonal truncated.

[0050] The height of the protrusion 10 is 0.02mm.

[0051] The rest of the structures are as described above and will not be repeated here.

Embodiment 2

[0053] Such as figure 2 with Figure 7 As shown, a low-friction reciprocating seal includes an annular support frame 1 and an annular elastic sealing body 2. The annular elastic sealing body 2 includes at least one sealing lip, and the annular sealing surface formed by the sealing lip is provided with The concave-convex surface ring belt is provided with a plurality of protrusions 10 .

[0054] The protrusions 10 are randomly distributed on the annular sealing surface.

[0055] The height of the protrusion 10 is 0.10mm.

[0056] The rest of the structures are as described above and will not be repeated here.

Embodiment 3

[0058] Such as image 3 with Figure 8 As shown, a low-friction reciprocating seal includes an annular support frame 1 and an annular elastic sealing body 2. The annular elastic sealing body 2 includes at least one sealing lip, and the annular sealing surface formed by the sealing lip is provided with The concave-convex surface ring belt is provided with a plurality of pits 11 .

[0059] The shape of the pit 11 is polygonal truncated.

[0060] The depth of the pit is 0.3mm.

[0061] The rest of the structures are as described above and will not be repeated here.

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Abstract

The invention relates to the technical field of seal components and particularly discloses a low-friction reciprocating motion seal component. The low-friction reciprocating motion seal component comprises an annular support frame and an annular elastic seal body, wherein the annular elastic seal body comprises at least one seal lip. The low-friction reciprocating motion seal component is characterized in that a concave-convex girdle is arranged on an annular seal surface on which the seal lip is formed, and a plurality of projections or pits are arranged on the concave-convex girdle; the seal lip comprises a first seal lip and a second seal lip, and a first concave-convex girdle and a second concave-convex girdle are respectively arranged on annular seal surfaces which are formed by the first seal lip and the second seal lip; the projections or the pits are in a shape of a semi-sphere, a box, a truncated cone or a polygonal frustum. The low-friction reciprocating motion seal component has the beneficial effects that friction between the seal body and a shaft is reduced under the condition of ensuring that the seal body has sufficient radial seal pressure, so that the motion friction of a reciprocating mechanism is reduced; the service lives of the seal body and the motion shaft are prolonged under the condition of ensuring seal.

Description

technical field [0001] The invention relates to a seal, in particular to a low-friction reciprocating seal. Background technique [0002] The reciprocating hydraulic structure is a common part of modern vehicles and construction machinery. The lip structure and wear resistance of the reciprocating shaft seal are very important to the service life of the reciprocating hydraulic structure. The sealing ability of the seal depends on the thickness of the oil film on the sealing surface. If the thickness of the oil film between the sealing lip and the shaft is too large, the seal is prone to leakage; if the thickness is too small, dry friction may occur, causing wear of the seal and the shaft. For example, during the use of automobile shock absorbers, due to the high friction of the seals, the reciprocating hydraulic structure often has problems such as oil leakage, abnormal noise, and poor durability. But at the same time, in order to realize the sealing of the internal sealing...

Claims

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Application Information

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IPC IPC(8): F16J15/32F16J15/56F16F9/36F16J15/3232F16J15/3284
Inventor 杜杰王景林李玉胜梁延忠
Owner YANTAI RUNFUXIANG OIL SEAL
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