CN204900824U

CN204900824U - Shield is glued in area of four lip rubber of internal diameter

Info

Publication number: CN204900824U
Application number: CN201520494170.XU
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: 2015-12-23
Anticipated expiration: 2025-07-07

Abstract

The utility model discloses a shield is glued in area of four lip rubber of internal diameter, including being annular skeleton of circle and rubber circle, the inner off -plate reason of skeleton has inward bellying, the terminal surface inner edge has outside recess in the skeleton, 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 four rings of seal lips, and utility model is through hem with the skeleton external diameter and bearing tight fit, and the hem thin rubber down closely laminate with the lasso, prevents that oil of axle bearing from following the overcoat and spilling over, three slat gum lip limits of skeleton internal diameter for prevent external pollutant to get into the bearing, ensure that the bearing is intact, prevent simultaneously that the interior grease of bearing is excessive, the shield cooperation is glued in the three lip areas of side direction rubber lip limit and external diameter of product skeleton internal diameter department, and greatly increased seals the effect, compares with current technique, and processing is simple, and the shaping is easy to it is good to have intensity simultaneously, the sealed splendid characteristics of effect.

Description

A kind of band glue dust cover of internal diameter four lip rubber

[technical field]

The utility model relates to the technical field of Bearing fittings, particularly a kind of technical field of band glue dust cover of internal diameter four lip rubber.

[background technique]

Dust cover is the critical component that bearing runs well in rugged environment, and it plays protection bearing from erosion and pollution, and bearing can be worked in good clean lubrication environment.And the inside of bearing is due to a large amount of grease lubrication of needs, if sealing effect is bad, can grease be produced excessive, affect the running of bearing.There is following shortcoming in conventional dust cover and seal ring: 1, dust cover assembles rear intensity better on bearing, but sealing effect is not good; 2, on bearing, after assembling, sealing effect is better, but intensity is not good.

[model utility content]

The purpose of this utility model solves the problems of the prior art exactly, a kind of band glue dust cover of internal diameter four lip rubber is proposed, the grease of bearing can be made not easily to leak, outside foreign material and dust are difficult to invade inside, greatly improve the working life of bearing, processing is simple, easily shaping, intensity is good, and sealing effect is splendid.

For achieving the above object, the utility model proposes a kind of band glue dust cover of internal diameter four lip rubber, comprise in circular skeleton and rubber ring, the interior edge face outer rim of described skeleton has inside lug boss, described skeleton interior edge face inner edge 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 four circle sealing lips.

As preferably, described four circle sealing lips are in the outside being axially in above-mentioned reentrant part.

As preferably, the female portion is equipped with terraced steps, and rubber ring tightly fits in above-mentioned terraced steps.

As preferably, the flanging of described skeleton external diameter and bearing drive fit, thin rubber under flanging on described skeleton and lasso fit tightly, and the side direction rubber lip limit of the sealing lip of described skeleton inner radius coordinates with external diameter three lip band glue dust cover, greatly increases sealing effect.

As preferably, the outer wall of described lug boss is toroidal surface structure.

The beneficial effects of the utility model: the utility model passes through the flanging of skeleton external diameter and bearing drive fit, and the thin rubber under flanging and lasso fit tightly, and prevent bearing grease from overflowing from overcoat; Three slat gum lip limits of skeleton internal diameter, for stoping environmental contaminants to enter bearing, guaranteeing that bearing is intact, preventing grease in bearing excessive simultaneously; The side direction rubber lip limit of product skeleton inner radius coordinates with external diameter three lip band glue dust cover, greatly increases sealing effect, and compared with prior art, processing is simple, easily shaping, and to have intensity good simultaneously, 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-sealing lip, 4-reentrant part, 5-lug boss, 6-outer wall.

[embodiment]

Consult Fig. 1, Fig. 2 and Fig. 3, the band glue dust cover of a kind of internal diameter four of the utility model lip rubber, comprise in circular skeleton 1 and rubber ring 2, the interior edge face outer rim of described skeleton 1 has inside lug boss 5, described skeleton 1 interior edge face inner edge has outside reentrant part 4, in the female portion 4, drive fit socket arranges circular rubber ring 2, the inwall of described rubber ring 2 is radial extended four circle sealing lips 3, described four circle sealing lips 3 are in the outside being axially in above-mentioned reentrant part 4, the female portion 4 is equipped with terraced steps, rubber ring 2 tightly fits in above-mentioned terraced steps, the flanging of described skeleton 1 external diameter and bearing drive fit, thin rubber under flanging on described skeleton 1 and lasso fit tightly, the side direction rubber lip limit of the sealing lip 3 of described skeleton 1 inner radius coordinates with external diameter three lip band glue dust cover, greatly increase sealing effect, the outer wall 6 of described lug boss 5 is in toroidal surface structure.

Utility model works process:

The band glue dust cover of a kind of internal diameter four of the utility model lip rubber in the course of the work, by flanging and the bearing drive fit of skeleton 1 external diameter, thin rubber under flanging on skeleton 1 and lasso fit tightly, prevent bearing grease from overflowing from overcoat, reentrant part 4 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, three slat gum lip limits on sealing lip 3 on skeleton 1 internal diameter, bearing is entered for stoping environmental contaminants, guarantee that bearing is intact, prevent grease in bearing excessive simultaneously, coordinate with external diameter three lip band glue dust cover on the side direction rubber lip limit of skeleton 1 inner radius, greatly increase sealing effect, compared with prior art, processing is simple, easily shaping, and it is good to have intensity simultaneously, 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. the band glue dust cover of an internal diameter four lip rubber, it is characterized in that: comprise in circular skeleton (1) and rubber ring (2), the interior edge face outer rim of described skeleton (1) has inside lug boss (5), described skeleton (1) interior edge face inner edge has outside reentrant part (4), the socket of the female portion (4) interior drive fit arranges circular rubber ring (2), and the inwall of described rubber ring (2) is radial extended four circle sealing lips (3).

2. the band glue dust cover of a kind of internal diameter four lip rubber as claimed in claim 1, is characterized in that: described four circles sealing lip (3) are in the outside being axially in above-mentioned reentrant part (4).

3. the band glue dust cover of a kind of internal diameter four lip rubber as claimed in claim 1, it is characterized in that: the female portion (4) are equipped with terraced steps, rubber ring (2) tightly fits in above-mentioned terraced steps.

4. the band glue dust cover of a kind of internal diameter four lip rubber as claimed in claim 1, it is characterized in that: the flanging of described skeleton (1) external diameter and bearing drive fit, thin rubber under flanging on described skeleton (1) and lasso fit tightly, the side direction rubber lip limit of the sealing lip (3) of described skeleton (1) inner radius coordinates with external diameter three lip band glue dust cover, greatly increases sealing effect.

5. the band glue dust cover of a kind of internal diameter four lip rubber as claimed in claim 1, is characterized in that: the outer wall (6) of described lug boss (5) is in toroidal surface structure.