CN101761553A

CN101761553A - Dual-roller bearing

Info

Publication number: CN101761553A
Application number: CN200910234966A
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 dual-roller bearing which comprises an inner ring, an outer ring, a rolling body, an inner retainer and an outer retainer. The dual-roller bearing comprises two retainer of the inner ring and the outer ring, wherein the outer ring is combined with the rolling body and the retainers to form a roller outer ring, and meanwhile the inner ring is combined with the rolling body and the retainers to form a roller inner ring. The rollers on the roller outer ring and the roller inner ring roll in a contact manner. So long as the rollers of the inner ring and the outer ring are matched with each other, the rollers can be regularly cylindrical or regularly conical or present the shape of a trapezoidal cylinder or other shapes. The dual-roller bearing has the following obvious effects: the common roller bearing is improved and the rollers of the bearing are combined with the inner/outer rings as well as the retainers so as to form the bearing only with the inner ring and the outer ring; the rollers only need to be matched with each other for rotation, and the friction force between the inner ring and the outer ring can be reduced to further increase the rotating speed.

Description

Dual-roller bearing

Technical field

The present invention relates to a kind of bearing, especially a kind of dual-roller 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 dual-roller bearing.

A kind of dual-roller bearing, comprise inner ring, outer ring, rolling element, inside and outside retainer, it is characterized in that bearing contains two retainers of inner ring and outer ring, wherein the outer ring combines with rolling element, retainer and forms a roller outer ring, inner ring combines with rolling element, retainer and forms the roller inner ring simultaneously, the rolling that contacts with roller on the roller inner ring of roller on the roller outer ring, roller can be rule cylindrical, also can be taper shape, trapezoidal cylindrical body or other shapes of rule, as long as the roller of Internal and external cycle can mate.

Remarkable result of the present invention is that common roller bearing is improved, the roller of bearing is combined with Internal and external cycle and retainer, formed the bearing that has only Internal and external cycle, the roller on it is as long as can mate rotation, can reduce the frictional force between the Internal and external cycle, rotating speed is further improved.

Embodiment

Below the present invention will be further described: bearing contains two retainers of inner ring and outer ring, wherein outer ring and rolling element, retainer is in conjunction with forming a roller outer ring, while inner ring and rolling element, retainer is in conjunction with forming the roller inner ring, the rolling that contacts with roller on the roller inner ring of roller on the roller outer ring, roller can be that rule is cylindrical, it also can be the taper shape of rule, trapezoidal cylindrical body or other shapes, as long as the roller of Internal and external cycle can mate, for example: the roller of Internal and external cycle can be the cylindrical of rule simultaneously, also can be that the outer ring is to go up taper shape, inner ring is conical down, or the combination of other roller.

Apply the present invention in the mechanical system, common roller bearing is improved, the roller of bearing is combined with Internal and external cycle and retainer, formed the bearing that has only Internal and external cycle, roller on it is as long as can mate rotation, can reduce the frictional force between the Internal and external cycle, rotating speed is further improved, be particularly useful for the rotating speed of bearing is had the occasion of high requirements.

Claims

1. dual-roller bearing, comprise inner ring, outer ring, rolling element, inside and outside retainer, it is characterized in that bearing contains two retainers of inner ring and outer ring, wherein the outer ring combines with rolling element, retainer and forms a roller outer ring, inner ring combines with rolling element, retainer and forms the roller inner ring simultaneously, the rolling that contacts with roller on the roller inner ring of roller on the roller outer ring, roller can be rule cylindrical, also can be taper shape, trapezoidal cylindrical body or other shapes of rule, as long as the roller of Internal and external cycle can mate.

2. dual-roller bearing as claimed in claim 1 is characterized in that bearing contains two retainers of inner ring and outer ring.

3. dual-roller bearing as claimed in claim 1 is characterized in that the outer ring is combined roller outer ring of formation with rolling element, retainer, inner ring is combined with rolling element, retainer form the roller inner ring simultaneously.

4. dual-roller bearing as claimed in claim 1, it is characterized in that roller can be rule cylindrical, also can be taper shape, trapezoidal cylindrical body or other shapes of rule, as long as the roller of Internal and external cycle can mate.