CN201293107Y

CN201293107Y - Spring adhering type reinforced seal

Info

Publication number: CN201293107Y
Application number: CNU2008201863677U
Authority: CN
Inventors: 许钧智
Original assignee: SHUYUAN MACHINERY ENTERPRISE (KUNSHAN) CO Ltd
Current assignee: SHUYUAN MACHINERY ENTERPRISE (KUNSHAN) CO Ltd
Priority date: 2008-10-22
Filing date: 2008-10-22
Publication date: 2009-08-19
Anticipated expiration: 2018-10-22

Abstract

The utility model relates to a spring-adhered frame oil seal which comprises a rubber body, a metal ring frame and a spring ring, wherein the metal ring frame is embedded in the rubber body, a main lip is formed on the inner wall of the rubber body, and the spring ring is embedded in the rubber body on the periphery of the main lip. The utility model solves the problem that the spring ring is easy to shed when the frame oil seal is assembled and used in a use occasion with a larger eccentricity.

Description

The adhered outside framework oil seal of spring

Technical field

The utility model relates to the seal element in each lubrication system such as automobile, motorcycle, washing machine, relate in particular to the adhered oil sealing of a kind of spring, the adhered oil sealing of this spring is applicable to beat occasion or the axle occasion bigger with hole off-centre, as spark plug oil sealing or roller washing machine oil sealing etc.

Background technique

In the mechanical transmission,, often use lubricators such as grease and fluid to be lubricated for assurance equipment can run well, the also corresponding simultaneously seal arrangement that has designed lubrication system, outside framework oil seal has then become requisite seal element.

Outside framework oil seal commonly used at present, as shown in Figure 1, outside framework oil seal is made up of for the eyelet skeleton 2 and spring ring 3 three parts of " L " type rubber body 1, cross section.The cross section is embedded in the rubber body 1 for the eyelet skeleton 2 of " L " type, plays the effect of reinforcement, and make oil sealing keep shape and gain in strength, rigidity; Spring ring 3 be located in leaf tail (bizet) corresponding to main lip 5 and locates, and guarantees the binding force of the in use main lip 5 of oil sealing with this, affords redress when main lip 5 is worn away, and guarantees the working life of oil sealing.Above-mentioned outside framework oil seal is when making, need on rubber body, to reserve earlier spring groove 4 (as shown in Figure 2), behind outside framework oil seal sulfidization molding, deburring, again spring ring 3 buttons are set in the spring groove 4, promptly the tightening force by the spring groove 4 on the rubber body and spring ring 3 self is fixed on spring ring 3 on the outside framework oil seal, that is to say that spring ring 3 separates with rubber body 1.

And above-mentioned this outside framework oil seal is in the bigger use occasion of offset, as spark plug or roller washing machine, when assembling, elder generation packs outside framework oil seal in the axis hole, again eccentric shaft is loaded into, usually owing to penetrating of eccentric shaft makes winner's lip discontinuity, the spring ring that causes main lip outer ring button to be established easily comes off, thereby influences the normal operation of equipment.In addition, in some occasion, in the oil sealing assembly process, the operator be difficult to find the actual state (whether spring comes off) of spring, often needs to adopt detection facility such as torsion machine to detect, if spring comes off, situation such as then torsion opportunity discovery torsion is unusual, this refitting of just must doing over again, waste of manpower, material resources, reduce manufacturing efficiency, bring inconvenience to people.

Therefore, how to solve this outside framework oil seal and assemble in the bigger use occasion of offset and use, the problem that spring ring comes off easily is the utility model content of research emphatically.

Summary of the invention

The utility model provides a kind of spring adhered outside framework oil seal, and its purpose mainly is to solve in the prior art outside framework oil seal to assemble in the bigger use occasion of offset and use the problem that spring ring comes off easily.

For achieving the above object, the technical solution adopted in the utility model is: the adhered outside framework oil seal of a kind of spring, comprise rubber body, eyelet skeleton and spring ring, the eyelet skeleton is embedded in the rubber body, form main lip on the inwall of rubber body, described spring ring is embedded in along in the circumferential rubber body of main lip.

Related content in the technique scheme is explained as follows:

1, in the such scheme, spring ring is put into the tram of mould after solid is handled, effectively follow through the vulcanization of rubber and rubber body, is embedded in the rubber body, promptly is shaped to one with rubber body.

Because the technique scheme utilization, the utility model compared with prior art has following advantage:

1, because the utility model is circumferentially buried spring ring underground along main lip in rubber body, make spring ring and rubber body be integral formation, avoided in the past outside framework oil seal under the bigger use occasion of offset, assembling and the using process problem that spring coil comes off easily of being hit by a bullet, improve the reliability of oil sealing, reduce the rework cost in the assembly process, guaranteed the proper functioning of equipment, reduced unnecessary waste.

2, because the utility model is embedded in spring ring in the rubber body, can be suitable for offset big (as greater than 2mm) or the bigger occasion of beating widely, improve its Applicable scope.

3, the utility model is simple in structure, makes easily, and cost is low, and is easy to use and reliable.

Description of drawings

Accompanying drawing 1 is a prior art outside framework oil seal schematic cross-section;

Accompanying drawing 2 is an A place enlarged view in the accompanying drawing 1;

Accompanying drawing 3 is the utility model schematic cross-section.

In the above accompanying drawing: 1, rubber body; 2, eyelet skeleton; 3, spring ring; 4, spring groove; 5, main lip.

Embodiment

Below in conjunction with drawings and Examples the utility model is further described:

Embodiment:

As shown in Figure 3, the adhered outside framework oil seal of a kind of spring, comprise rubber body 1, eyelet skeleton 2 and spring ring 3, eyelet skeleton 2 is embedded in the rubber body 1, form main lip 5 on the inwall of rubber body 1, described spring ring 3 is embedded in along in circumferential rubber body 1 body of main lip 5, and is one-body molded with rubber body 1 after the vulcanization of rubber.

Spring ring 3 circumferentially is embedded in the rubber body 1 along main lip 5, radial compaction power is provided for rubber body 1, and increase the intensity of rubber body 1 effectively, avoided rubber body 1 pressurized to impact and distortion and having avoided because strength deficiency (softness) causes turning in the assembly process phenomenon of lip, loss to main lip 5 compensates in the course of the work, thereby has prolonged the working life of outside framework oil seal.

The utility model adopts spring ring 3 and rubber body 1 one to constitute, avoided in the past outside framework oil seal under the bigger use occasion of offset, assembling and the using process problem that spring coil 3 comes off easily of being hit by a bullet, improve the reliability of oil sealing, reduce the rework cost in the assembly process, guarantee the proper functioning of equipment, reduced unnecessary waste.

The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.

Claims

1, the adhered outside framework oil seal of a kind of spring, comprise rubber body (1), eyelet skeleton (2) and spring ring (3), eyelet skeleton (2) is embedded in the rubber body (1), form main lip (5) on the inwall of rubber body (1), it is characterized in that: described spring ring (3) circumferentially is embedded in the rubber body (1) along main lip (5).