CN103511454A

CN103511454A - Bearing assembly

Info

Publication number: CN103511454A
Application number: CN201310465218.XA
Authority: CN
Inventors: 朱雷
Original assignee: WUJIANG RED ROSE TEXTILE Co Ltd
Current assignee: WUJIANG RED ROSE TEXTILE Co Ltd
Priority date: 2013-10-08
Filing date: 2013-10-08
Publication date: 2014-01-15

Abstract

The invention discloses a bearing assembly. The bearing assembly comprises an outer ring, an inner ring, a holding frame, a steel ball, an inner sealing ring and an outer sealing ring, wherein the inner sealing ring and the outer sealing ring are mounted between the outer ring and the inner ring; the inner ring comprises a left inner ring and a right inner ring which are provided with single grooves; a right annular groove is formed in the left inner ring; a left annular bulge is formed on the right inner ring; the left annular bulge is clamped in the right annular groove; the outer ring comprises a left outer ring and a right outer ring which are provided with single grooves; two sides of a check ring are clamped in annular grooves formed in the left outer ring and the right outer ring. The bearing assembly can be split as single-line bearings for use, so that the production is guaranteed; meanwhile, when the bearing assembly is used as two-line bearings for use, and one line of bearings is damaged, the remaining line of bearings can be used as the single-line bearings for use, so that the maintenance cost is reduced.

Description

A kind of bearing unit

Technical field:

The present invention relates to technical field of bearings, more specifically to a kind of bearing unit.

Background technique:

Double row bearing is because columns increases, and radial capacity increases, and meanwhile, also can bear larger bi-directional axial load, is therefore conventionally applied to heavy-duty gear transmission.Yet existing double row bearing is one, cannot split, when the steel ball breakage in double row bearing in row or a side are damaged, just whole double row bearing need to be changed, this has increased cost.

Meanwhile, sometimes, when the single row bearing of equipment damages, need on-call maintenance Shi， warehouse to only have double row bearing, can only shut down and buy stock like this, this has affected production, has reduced efficiency.

Summary of the invention:

The object of the invention is to overcome the deficiencies in the prior art, a kind of bearing unit is provided, it can split as single row bearing and use, guarantee to produce, meanwhile, when using as double row bearing, when wherein row damage, can guarantee that row that are left can be used as single row bearing and use, save maintenance cost.

The scheme that the present invention solve the technical problem is:

A kind of bearing unit, comprise outer ring, inner ring, retainer, steel ball, inner seal ring and exterior seal ring, inner seal ring and exterior seal ring are arranged between outer ring and inner ring, described inner ring comprises left inside circle and the right inside circle with single raceway groove, on left inside circle, form right annular groove, on right inside circle, form left annular protrusion, left annular protrusion is fastened in right annular groove; Outer ring comprises left outside circle and the right outside circle with single raceway groove, and the both sides of back-up ring are fastened in the annular groove all forming on left outside circle and right outside circle.

Described left annular protrusion is fastened in right annular groove by interference fit; The both sides of back-up ring are fastened in the annular groove all forming on left outside circle and right outside circle by interference fit.

On the left side of described back-up ring and right side, all form annular protrusion, the annular protrusion that the annular protrusion of left side is fastened on the annular groove Zhong， right side that left outside Quan right side forms is fastened in the annular groove that right outside Quan left side forms.

Outstanding effect of the present invention is:

1, it,, when being used as double row bearing use, when wherein row damage, can guarantee that row that are left can be used as single row bearing and use, and saves maintenance cost.

When 2, when the single row bearing of equipment damages, get ready the goods without single row bearing in warehouse, it can split uses as single row bearing, continues to produce the normal operation of assurance machine guaranteeing.

Accompanying drawing explanation:

Fig. 1 is structural representation of the present invention;

Structural representation when Fig. 2 is disassembled form of the present invention.

In figure: 1, outer ring; 11, left outside circle; 12, right outside circle; 13, annular groove; 2, inner ring; 21, left inside circle; 21a, right annular groove; 22, right inside circle; 22a, left annular protrusion; 3, retainer; 4, steel ball; 5, inner seal ring; 6, exterior seal ring; 7, back-up ring; 71, annular protrusion.

Embodiment:

Embodiment, see as shown in Figure 1 to Figure 2, a kind of bearing unit, comprise outer ring 1, inner ring 2, retainer 3, steel ball 4, inner seal ring 5 and exterior seal ring 6, inner seal ring 5 and exterior seal ring 6 are arranged between outer ring 1 and inner ring 2, inner seal ring 5 and exterior seal ring 6 are in the both sides of steel ball 4, described inner ring 2 comprises left inside circle 21 and the right inside circle 22 with single raceway groove, on left inside Quan21 right side, form right annular groove 21a, on right inside Quan22 left side, form left annular protrusion 22a, left annular protrusion 22a is fastened in right annular groove 21a; Outer ring 1 comprises left outside circle 11 and the right outside circle 12 with single raceway groove, and the both sides of back-up ring 7 are fastened in the annular groove 13 all forming on left outside circle 11 and right outside circle 12.

Described left annular protrusion 22a is fastened in right annular groove 21a by interference fit; The both sides of back-up ring 7 are fastened in the annular groove 13 all forming on left outside circle 11 and right outside circle 12 by interference fit.

On the left side of described back-up ring 7 and right side, all form annular protrusion 71, the annular protrusion 71 that the annular protrusion 71 of left side is fastened on the annular groove 13Zhong， right side that left outside Quan11 right side forms is fastened in the annular groove 13 that right outside Quan12 left side forms.

Working principle: when the row in the present invention damage, can split by local heating, wherein intact half be disassembled as single row bearing and use.

While needing single row bearing in equipment, when its installing space is applicable to the size of the single row bearing after the present invention splits, while using as single row bearing, can pass through deep fat or other equipment by local heating of the present invention, split the present invention.

Claims

1. a bearing unit, comprise outer ring (1), inner ring (2), retainer (3), steel ball (4), inner seal ring (5) and exterior seal ring (6), inner seal ring (5) and exterior seal ring (6) are arranged between outer ring (1) and inner ring (2), it is characterized in that: described inner ring (2) comprises left inside circle (21) and the right inside circle (22) with single raceway groove, on left inside circle (21), form right annular groove (21a), on right inside circle (22), form left annular protrusion (22a), left annular protrusion (22a) is fastened in right annular groove (21a); Outer ring (1) comprises left outside circle (11) and the right outside circle (12) with single raceway groove, and the both sides of back-up ring (7) are fastened in the annular groove (13) all forming on left outside circle (11) and right outside circle (12).

2. a kind of bearing unit according to claim 1, is characterized in that: described left annular protrusion (22a) is fastened in right annular groove (21a) by interference fit; The both sides of back-up ring (7) are fastened in the annular groove (13) all forming on left outside circle (11) and right outside circle (12) by interference fit.

3. a kind of bearing unit according to claim 1, it is characterized in that: on the left side of described back-up ring (7) and right side, all form annular protrusion (71), the annular protrusion (71) that the annular protrusion of left side (71) is fastened on annular groove (13) the Zhong， right side that the right side of left outside circle (11) forms is fastened in the annular groove (13) that the left side of right outside circle (12) forms.