CN204878372U

CN204878372U - Retaining ring is glued in lips area

Info

Publication number: CN204878372U
Application number: CN201520492840.4U
Authority: CN
Inventors: 吴守忠
Original assignee: ZHEJIANG XINCHANG JOHSON SEAL CO Ltd
Current assignee: ZHEJIANG XINCHANG JOHSON SEAL CO Ltd
Priority date: 2015-07-07
Filing date: 2015-07-07
Publication date: 2015-12-16
Anticipated expiration: 2025-07-07

Abstract

The utility model discloses a retaining ring is glued in lips area, including being annular skeleton of circle and rubber circle, the inner mask of skeleton has outside recess, the tight fit is cup jointed and is set up the annular rubber circle of circle in the recess, the radial extension of inner wall of rubber circle is provided with first rubber lip limit and second rubber lip limit, the utility model discloses a with skeleton internal diameter and bearing tight fit, prevent that oil of axle bearing from spilling over from the endotheca, two slat gum lip limits of skeleton external diameter department are glued the inclined plane contact cooperation of shield skeleton and are used with the area, and greatly increased seal the effect, prevents that outside pollutant from getting into the bearing, prevents again that the inside grease of bearing is excessive, compares with prior art, processes simply, and the shaping is easy to it is good to have intensity, the sealed splendid characteristics of effect.

Description

A kind of lips band glue back-up ring

[technical field]

The utility model relates to the technical field of fastening piece mechanically, particularly a kind of technical field of lips band glue back-up ring.

[background technique]

Back-up ring is the cast parts be fastened on axle, other part plaies be contained on axle can be prevented, a kind of mechanical parts the most often used in mechanical engineering, specifically belong to a kind of fastening piece, the Main Function of back-up ring is the effect playing axial restraint, be equivalent to a movable rib, be used to grade bearing, convenient installation, common back-up ring is not fixedly installed, the elasticity difficulty easily causing bearing fixing is grasped, crossing pine can cause bearing to come off, tension can cause bearing lubrication effect to decline, wearing and tearing increase, so lack a kind of not only can fix but also effect that can play sealing.

[model utility content]

The purpose of this utility model solves the problems of the prior art exactly, a kind of lips band glue back-up ring is proposed, bearing fix tightly can be made, the grease in bearing can be made again not easily excessive, outside serious pollution thing and dust are difficult to invade inner, substantially increase the working life of bearing in serious pollution substance environment.

For achieving the above object, the utility model proposes a kind of lips band glue back-up ring, comprise in circular skeleton and rubber ring, the interior edge face of described skeleton has outside reentrant part, in the female portion, drive fit socket arranges circular rubber ring, and the inwall of described rubber ring is radial extended the first rubber lip limit and the second rubber lip limit, and the female portion is equipped with terraced steps, rubber ring tightly fits in above-mentioned terraced steps, the internal diameter of described skeleton and bearing drive fit.

As preferably, the contact of incline plane of the first rubber lip limit on described rubber ring and the second rubber lip limit and band glue dust cover skeleton with the use of.

As preferably, described first rubber lip limit is in the below on the second rubber lip limit, and the lip edge lengths on described second rubber lip limit is greater than the length on the first rubber lip limit.

The beneficial effects of the utility model: the utility model passes through skeleton internal diameter and bearing drive fit, prevent bearing grease from overflowing from inner sleeve, two slat gum lip limits of skeleton outer radius, with the contact of incline plane of band glue dust cover skeleton with the use of, greatly increase sealing effect, prevent outside pollutant from entering bearing, prevent again Bearing inner grease excessive, compared with prior art, processing is simple, easily shaping, and it is good to have intensity, the feature that sealing effect is splendid.

Feature of the present utility model and advantage will be described in detail by reference to the accompanying drawings by embodiment.

[accompanying drawing explanation]

Fig. 1 is plan view of the present utility model;

Fig. 2 is structural representation of the present utility model;

Fig. 3 is enlarged section of the present utility model.

In figure: 1-skeleton, 2-rubber ring, 3-first rubber lip limit, 4-second rubber lip limit, 5-reentrant part.

[embodiment]

Consult Fig. 1, Fig. 2 and Fig. 3, the utility model, comprise in circular skeleton 1 and rubber ring 2, the interior edge face of described skeleton 1 has outside reentrant part 5, in the female portion 5, drive fit socket arranges circular rubber ring 2, the inwall of described rubber ring 2 is radial extended the first rubber lip limit 3 and the second rubber lip limit 4, the female portion 5 is equipped with terraced steps, rubber ring 2 tightly fits in above-mentioned terraced steps, the internal diameter of described skeleton 1 and bearing drive fit, the contact of incline plane of the first rubber lip limit 3 on described rubber ring 2 and the second rubber lip limit 4 and band glue dust cover skeleton with the use of, described first rubber lip limit 3 is in the below on the second rubber lip limit 4, the lip edge lengths on described second rubber lip limit 4 is greater than the length on the first rubber lip limit 3.

Utility model works process:

A kind of lips band of the utility model glue back-up ring in the course of the work, skeleton 1 internal diameter and bearing drive fit, prevent bearing grease from overflowing from inner sleeve, reentrant part 5 is equipped with terraced steps, the outer wall of rubber ring 2 and the sidewall interference fit of terraced steps, rubber ring 2 is made to combine closely in skeleton 1, the contact of incline plane of the first rubber lip limit 3 on rubber ring 2 and the second rubber lip limit 4 and band glue dust cover skeleton with the use of, greatly increase sealing effect, prevent outside pollutant from entering bearing, prevent again Bearing inner grease excessive, compared with prior art, processing is simple, easily shaping, and it is good to have intensity, the feature that sealing effect is splendid.

Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, anyly all belongs to protection domain of the present utility model to the scheme after the utility model simple transformation.

Claims

1. a lips band glue back-up ring, it is characterized in that: comprise in circular skeleton (1) and rubber ring (2), the interior edge face of described skeleton (1) has outside reentrant part (5), the socket of the female portion (5) interior drive fit arranges circular rubber ring (2), the inwall of described rubber ring (2) is radial extended the first rubber lip limit (3) and the second rubber lip limit (4), the female portion (5) is equipped with terraced steps, rubber ring (2) tightly fits in above-mentioned terraced steps, the internal diameter of described skeleton (1) and bearing drive fit.

2. a kind of lips band glue back-up ring as claimed in claim 1, is characterized in that: the contact of incline plane of the first rubber lip limit (3) on described rubber ring (2) and the second rubber lip limit (4) and band glue dust cover skeleton with the use of.

3. a kind of lips band glue back-up ring as claimed in claim 1, it is characterized in that: described first rubber lip limit (3) is in the below on the second rubber lip limit (4), and the lip edge lengths on described second rubber lip limit (4) is greater than the length on the first rubber lip limit (3).