CN203430985U

CN203430985U - Ultrahigh-speed composite rolling bearing

Info

Publication number: CN203430985U
Application number: CN201320462772.8U
Authority: CN
Inventors: 姜韶峰; 王东峰; 刘胜超
Original assignee: Luoyang Bearing Science and Technology Co Ltd
Current assignee: Luoyang Bearing Research Institute Co Ltd
Priority date: 2013-07-31
Filing date: 2013-07-31
Publication date: 2014-02-12
Anticipated expiration: 2023-07-31

Abstract

The utility model discloses an ultrahigh-speed composite rolling bearing. The ultrahigh-speed composite rolling bearing comprises a bearing A, two bearings B, a fastening sleeve and a space ring, wherein the two bearings B are arranged in an inner hole of the fastening sleeve in parallel; the space ring is arranged between the two bearings B; the axes of the two bearings B and the axis of the fastening sleeve are located on a same straight line; the bearing A is sleeved on the outer wall of the fastening sleeve in an interference fit manner. According to the composite rolling bearing, a structure that a large bearing and a small bearing are sleeved is adopted so that the limiting speed of the composite rolling bearing is increased effectively; the ultrahigh-speed composite rolling bearing is simple in structure, wide in applicable range and low in cost and meets the requirements of an ultrahigh-speed working condition.

Description

A kind of ultra high speed composite rolling bearing

Technical field

The utility model relates to bearing applied technical field, a kind of ultra high speed composite rolling bearing.

Background technique

As everyone knows, existing bearing is divided into rolling bearing and sliding bearing according to structure.Because bearing is received structure, material, lubricated matter and lubricating system impact, his velocity limit is against greatly and counts out money between one～20,000 rev/min.Along with the progress of modern science and technology, produce and the field of scientific practice and the increasing of the degree of depth, to bearing, constantly challenge at a high speed.Although there is the appearance of magnetic suspension bearing, due to its complex structure, accommodation is little, high in cost of production effects limit its use.

Therefore, need to develop a kind of simple in structure, Applicable scope light, high-speed bearing that cost is low.

Summary of the invention

In order to overcome above-mentioned defect, the purpose of this utility model is to provide a kind of ultra high speed composite rolling bearing, is applicable under the condition of ultra high speed operating mode.

In order to realize foregoing invention object, the utility model adopts technological scheme as described below:

A kind of ultra high speed composite rolling bearing, comprise bearing A, two bearing B, adapter sleeve and spacer rings, two described bearing B are set in parallel in the endoporus of adapter sleeve, and be provided with spacer ring between two bearing B, the axis of two bearing B and the axis of adapter sleeve are all located along the same line, and described bearing A is set on the outer wall of adapter sleeve by interference fit.

Further, the diameter of the rolling element of bearing A is the diameter of rolling element of the bearing B of 0.8 times.

Further, the rolling element of bearing A and bearing B is stupalith.

Further, bearing A and bearing B are rolling bearing.

Owing to adopting technique scheme, the utlity model has following superiority:

Compared with prior art, composite rolling bearing of the present utility model, by adopting the structure that large and small bearing housing assembling is put, has improved the velocity limit of this composite rolling bearing effectively, has simple in structure, applied widely, that cost is low is limited, has met the needs of ultra high speed operating mode.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

In figure: 1-bearing A; 2-adapter sleeve; 3-bearing B; 4-spacer ring.

Embodiment

Below in conjunction with drawings and Examples, the utility model is described in further detail.

As shown in Figure 1, a kind of ultra high speed composite rolling bearing, comprise bearing A 1, two bearing B 3, adapter sleeve 2 and spacer rings 4, two described bearing B 3 are set in parallel in the endoporus of adapter sleeve 2, and be provided with spacer ring 4 between two bearing B 3, the axis of the axis of two bearing B 3 and adapter sleeve 2 is all located along the same line, and described bearing A 1 is set on the outer wall of adapter sleeve 2 by interference fit.

The diameter of the rolling element of bearing A 1 is the diameter of rolling element of the bearing B 3 of 0.8 times, makes the two rotate balanced so that bearing A is close with bearing B friction torque.

The rolling element of bearing A and bearing B is the stupalith that high speed performance is good.

Bearing A and bearing B are rolling bearing.

Claims

1. a ultra high speed composite rolling bearing, comprise bearing A(1), two bearing B(3), adapter sleeve (2) and spacer ring (4), it is characterized in that: two described bearing B(3) be set in parallel in the endoporus of adapter sleeve (2), and between two bearing B, be provided with spacer ring (4), the axis of two bearing B and the axis of adapter sleeve are all located along the same line, described bearing A(1) by interference fit, be set on the outer wall of adapter sleeve (2).

2. ultra high speed composite rolling bearing according to claim 1, is characterized in that: the diameter of rolling element bearing A(1) is the bearing B(3 of 0.8 times) the diameter of rolling element.

3. ultra high speed composite rolling bearing according to claim 1, is characterized in that: bearing A(1) and bearing B(3) rolling element be stupalith.

4. according to the ultra high speed composite rolling bearing described in claim 1 or 3, it is characterized in that: bearing A(1) and bearing B(3) be rolling bearing.