CN205478946U

CN205478946U - Bearing outside diameter seal structure

Info

Publication number: CN205478946U
Application number: CN201620084180.0U
Authority: CN
Inventors: 吴庆涛
Original assignee: Cixi Xunlei Bearing Co ltd
Current assignee: Cixi Xunlei Bearing Co ltd
Priority date: 2016-01-28
Filing date: 2016-01-28
Publication date: 2016-08-17
Anticipated expiration: 2026-01-28

Abstract

The utility model provides a bearing outside diameter seal structure, the outer lane of bearing week edge is equipped with the ring recess, has an annular sealing ring in that the ring recess is embedded, there is the chamfer at the inner circle both ends of sealing ring, and the surface of sealing ring outer lane is outside bellied global surface face. This bearing outside diameter seal structure has circled the chamfer in the sealing ring, be convenient for inlay put the bearing on, the easily assembly of bearing, and the external diameter be bellied global surface face, has both increased the axial seal distance between bearing and casing, increased again and the casing between friction surface and fitting surface, still strengthened the sealed of bearing outside diameter, guaranteed bearing job stabilization nature, reduce the vibration and noise of bearing, extend bearing's life satisfies the requirements at the higher level of user to the bearing use.

Description

Bearing outside diameter seals structure

Technical field

This utility model relates to a kind of bearing arrangement, and particularly a kind of bearing outside diameter seals structure.

Background technology

Existing Production of bearing enterprise proposes higher use requirement for solving user, it is ensured that the stability of bearing assembling, reduces vibration and the noise of complete machine, strengthens the sealing of bearing outside diameter, arise at the historic moment about the patent of outside diameter seal structure for this, various in style.

Summary of the invention

Technical problem to be solved in the utility model is: provides a kind of bearing outside diameter to seal structure, can strengthen the friction between bearing with housing and coordinate, it is ensured that the stability of bearing working, reduces vibration and the noise of bearing, extend the service life of bearing.

The technical scheme in the invention for solving the above technical problem is: bearing outside diameter seals structure, the outer ring periphery of described bearing is provided with ring groove, the sealing ring of annular it is embedded with at ring groove, the inner ring two ends of described sealing ring have chamfering, the outer surface of sealing ring outer ring to be the spherical cambered surface of outwardly convex.

Compared with prior art, the utility model has the advantage of: this bearing outside diameter seals structure, chamfering is had on sealing ring inner ring, it is easy to embed on bearing, it is prone to the assembling of bearing, and external diameter is protruding spherical cambered surface, both the axial seal distance between bearing and housing had been added, add again and the rubbing surface between housing and coordinate face, also enhance the sealing of bearing outside diameter, it is ensured that the stability of bearing working, reduce vibration and the noise of bearing, extend the service life of bearing, meet the requirements at the higher level that bearing is used by user.

Accompanying drawing explanation

Fig. 1, structural representation of the present utility model (partial view).

Fig. 2, seal ring structure schematic diagram (partial enlarged drawing).

Detailed description of the invention

Below in conjunction with the accompanying drawings embodiment of the present utility model is further described:

More than one sealing ring 1 can be had on bearing outer ring periphery.

Sealing ring 1 is O-ring seal, the spherical cambered surface 12 that inner ring two ends have chamfering 11, the outer surface of sealing ring outer ring to be outwardly convex.

The thickness of sealing ring 1 is, does not affect because of recessing on bearing outer ring, and affecting bearing intensity is that principle is to calculate decision.

There are two identical ring grooves 21 on the periphery of outer ring 2, are embedded with two sealing rings 1 matched respectively.

Sealing ring 1 embeds in the ring groove 21 of two correspondences on bearing outer ring 2, sealing ring is the spherical cambered surface 12 protruded because of outer ring 2, bearing is interference fit (figure is not drawn) when being arranged in housing, because sealing ring is made by elastomeric material, form a compressible interference, add axial seal distance than the sealing ring 1 of common shape, play effective vibration damping, sealing function, using this bearing outside diameter to seal the bearing of structure especially in high-speed electric expreess locomotive, action effect becomes apparent from.

Claims

1. a bearing outside diameter seals structure, it is characterized in that outer ring (2) periphery of described bearing is provided with ring groove (21), the sealing ring (1) of annular it is embedded with at ring groove, there is chamfering (11) at the inner ring two ends of described sealing ring (1), the spherical cambered surface that outer surface is outwardly convex (12) of sealing ring (1) outer ring.

Bearing outside diameter the most according to claim 1 seals structure, it is characterised in that has two ring grooves (21) on outer ring (2) periphery of described bearing, is embedded with two sealing rings (1) matched respectively.