CN101761557A

CN101761557A - Multi-level combined bearing

Info

Publication number: CN101761557A
Application number: CN200910234972A
Authority: CN
Inventors: 唐秀庚
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-19
Filing date: 2009-11-19
Publication date: 2010-06-30

Abstract

The invention provides a multi-level combined bearing comprising inner rings, outer rings, rolling bodies and a cage which shares a core inner ring, wherein a plurality of secondary inner rings having different inner diameters are derived from the core inner ring and connected via the rolling bodies having different inner diameters; each secondary inner ring is connected with the matched outer ring via the rolling bodies; the outer rings are different from each other in the rotating speed and direction; and the rolling bodies of the core inner ring and the secondary inner rings can be balls, rollers or rolling bodies of other types, and the rolling bodies can be the same with or different from each other. The invention has the following beneficial effects: by improving a common bearing, i.e., arranging a plurality of secondary rings having different inner diameters on the core inner ring on the same bearing as the secondary rings, the outer rings are different from each other in the rotating speed and direction, so the outer rings are adjustable as required, thereby meeting the requirements on one hand, and achieving the multi-dimension control on the bearing on the other hand.

Description

A kind of multi-level combined bearing

Technical field

The present invention relates to a kind of bearing, especially a kind of multi-level combined bearing.

Background technique

Bearing is the fixed member in the machinery.When other parts produce relative movement each other on axle, be used for retainer shaft the central position and control the parts of this motion, just be referred to as bearing.

Study carefully it and be used for saying be to support, promptly literal interpretation is used for holding axle, but this is the part of its effect, supports its essence and can bear radial load exactly.Also can be understood as it and be used for fixing axle.Be exactly that stationary axle makes it can only realize rotating, and control its moving axially and radially.It is exactly can not work that motor does not have the consequence of bearing at all.Because axle may be to the motion of any direction, and require axle to rotate during machine operation.Can not realize the effect of transmission theoretically, moreover, bearing also can influence transmission, must realize good lubricating in order to reduce this influence on the bearing of high speed shaft, the bearing that has itself has had lubricated, is called prelubricated bearing, and most bearing must have lubricant oil, be responsible for when running up, because friction not only can increase energy consumption, more fearful is to be easy to damage bearing.The saying that sliding friction is changed into rolling friction is unilateral, because kind of a thing that is sliding bearing is arranged.Under certain loading, revolution that bearing is experienced before spot corrosion occurring or hour number are called bearing life.Since accuracy of manufacturing, the difference of material uniformity coefficient, even same material, the same a collection of bearing of same size uses under same operating conditions, its life-span length is also inequality.For determining the standard of bearing life, bearing life and reliability are connected.

But, also need in the industry much to have specific characteristics can and the bearing of profile, to satisfy different industrial needs.

Summary of the invention

At the problems referred to above, the invention provides a kind of multi-level combined bearing.

A kind of multi-level combined bearing, comprise inner ring, outer ring, rolling element, retainer, it is characterized in that it has a common core inner ring, derive on the core inner ring the different secondary inner ring of a plurality of internal diameters is arranged, and the rolling element that passes through different inner diameters connects, each secondary inner ring is connected with supporting outer ring by rolling element, each outer ring has different rotating speeds and direction separately, the rolling element of core inner ring and the rolling element of secondary inner ring can be the rolling elements of ball, roller or other types, can be identical also can be different.

Remarkable result of the present invention is that common bearing is improved, the secondary-winding of a plurality of different inner diameters is set on the core inner ring of same bearing, each outer ring has different rotating speeds and direction separately, can adjust according to needs, not only can satisfy a side needs, can also multi-angle be controlled by bearing.

Embodiment

Below the present invention will be further described: bearing has a common core inner ring, derive on the core inner ring the different secondary inner ring of a plurality of internal diameters is arranged, and the rolling element that passes through different inner diameters connects, each secondary inner ring is connected with supporting outer ring by rolling element, each outer ring has different rotating speeds and direction separately, the rolling element of core inner ring and the rolling element of secondary inner ring can be the rolling elements of ball, roller or other types, can be identical also can be different.

Apply the present invention in the mechanical system, common bearing is improved, the secondary-winding of a plurality of different inner diameters is set on the core inner ring of same bearing, each outer ring has different rotating speeds and direction separately, can adjust according to needs, not only can satisfy a side needs, can also multi-angle be controlled by bearing, be particularly useful for bearing direction and rotating speed are had the occasion of multistage demand.

Claims

1. multi-level combined bearing, comprise inner ring, outer ring, rolling element, retainer, it is characterized in that it has a common core inner ring, derive on the core inner ring the different secondary inner ring of a plurality of internal diameters is arranged, and the rolling element that passes through different inner diameters connects, each secondary inner ring is connected with supporting outer ring by rolling element, each outer ring has different rotating speeds and direction separately, the rolling element of core inner ring and the rolling element of secondary inner ring can be the rolling elements of ball, roller or other types, can be identical also can be different.

2. multi-level combined bearing as claimed in claim 1 is characterized in that having a common core inner ring, and deriving on the core inner ring has the different secondary inner ring of a plurality of internal diameters, and connects by the rolling element of different inner diameters.

3. multi-level combined bearing as claimed in claim 1 is characterized in that each outer ring has different rotating speeds and direction separately.