CN202326890U

CN202326890U - Multi-lip mouth skeleton oil seal

Info

Publication number: CN202326890U
Application number: CN2011204475919U
Authority: CN
Inventors: 杜杰; 王仁波
Original assignee: LAIYANG QUANRUIXIANG PLASTIC PRODUCT CO Ltd
Current assignee: Yantai Runfuxiang Oil Seal Co., Ltd.
Priority date: 2011-11-14
Filing date: 2011-11-14
Publication date: 2012-07-11
Anticipated expiration: 2021-11-14

Abstract

The utility model discloses a multi-lip mouth skeleton oil seal which consists of a skeleton, a skeleton wrapping layer, a sealing lip and a dust lip. The skeleton wrapping layer is wrapped outside the skeleton to form a static seal of the oil seal; the sealing lip is arranged on one side of the inner wall of the skeleton and consists of 2-4 sealing lip mouths; and a spring is arranged on the outer side of the dust lip. The utility model has the benefits that the multi-lip mouth skeleton oil seal can be suitable for big damping force exceeding 10000N recuperative damping force, the assembly is simple, and the cost of a shock absorber can be reduced.

Description

A kind of many lips outside framework oil seal

Technical field

The utility model belongs to the oil seal technique field, especially relates to a kind of many lips outside framework oil seal.

Background technique

At present, the design of automobile absorber oil sealing has two kinds of designs basically, and a kind of is the many lips oil sealing that adopts full glue spare design, the another kind of lips oil seal that adopts the design of band skeleton.These two kinds of designs respectively have pluses and minuses, and many lips oil sealing of wherein full glue spare design is applicable to the occasion that compression resistance is bigger, use component more but there is vibration damper, occur the failure mode of few part in the assembly process easily, and efficiency of assembling is low.The another kind of lips oil seal that adopts the design of band skeleton; It has better seal property; But the damping force scope of the vibration damper of its adaptation is lower, generally uses the occasion of recovery damping force below 5000N when 0.52m/s, can not satisfy the use of big damping force vibration damper.

Summary of the invention

The purpose of the utility model is to improve the deficiency of prior art and a kind of many lips outside framework oil seal that can be applicable to that the big damping force, the assembling that surpass the 10000N recovery damping force are simple, can reduce the vibration damper cost is provided.

The purpose of the utility model is to realize like this; A kind of many lips outside framework oil seal; Form by skeleton, skeleton coating, sealing lip and dust excluder lips; Be characterized in that the skeleton coating is wrapped in the static seal of the outer formation oil sealing of skeleton, sealing lip is arranged on inwall one side of skeleton, and sealing lip is made up of 2-4 road seal lip.

In order further to realize the purpose of the utility model, can be to be provided with spring in the outside of dust excluder lips.

Compared with present technology the utility model has following distinguishing feature and good effect: the utility model adopts the skeleton coating to be wrapped in the static seal of the outer formation oil sealing of skeleton fully, and sealing lip is arranged on inwall one side of skeleton, and sealing lip is made up of 2-4 road seal lip; Sealing lip is many lips, and multiple-sealed lip not only has seal action but also have supporting effect, so can guarantee that the vibration damper chamber pressure increases the time; The contact condition of seal lip and absorber rod does not change, and can prevent the generation that leakage of oil was lost efficacy, and can be applicable to big damping force and the bigger vibration damper of interior pressure; Because sealing lip is wrapped on the skeleton; The skeleton outside has the skeleton coating to form the static seal between oil sealing and the vibration damper again, belongs to integrated design, so the oil sealing assembling is easy to use; Needing in the full glue oil sealing use to have avoided the situation of a plurality of parts cooperations; Both strengthen using effect, promoted efficiency of assembling, practiced thrift cost again.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is done further explain.

Fig. 1 is a kind of structural representation of the utility model.

Fig. 2 is the another kind of structural representation of the utility model.

Specific embodiments

Embodiment 1, and a kind of many lips outside framework oil seal is with reference to Fig. 1; Form by skeleton 1, skeleton coating 2, sealing lip 3, dust excluder lips 4; Skeleton coating 2 is wrapped in the outside and the good bond of skeleton 1 fully, can form static seal with vibration damper cavity interference fit, and sealing lip 3 and skeleton coating 2 one are wrapped in inwall one side of skeleton 1; Sealing lip 3 is made up of 2-4 road seal lip; Present embodiment sealing lip 3 is made up of 3 road seal lips, and dust excluder lips 4 is an one with skeleton coating 2, and this has constituted a kind of structure in the present embodiment.

Embodiment 2, and a kind of many lips outside framework oil seal with reference to Fig. 2, is on embodiment 1 basis, and in order to strengthen dustproof effect, dust excluder lips 4 outsides are provided with spring 5, and other and embodiment 1 are identical.

Claims

1. lip outside framework oil seal more than a kind; Form by skeleton (1), skeleton coating (2), sealing lip (3) and dust excluder lips (4); It is characterized in that skeleton coating (2) is wrapped in the static seal of the outer formation oil sealing of skeleton (2); Sealing lip (3) is arranged on inwall one side of skeleton (1), and sealing lip (3) is made up of 2-4 road seal lip.

2. a kind of many lips outside framework oil seal according to claim 1 is characterized in that being provided with spring (5) in dust excluder lips (4) outside.