CN105673705A

CN105673705A - Novel asymmetric V-shaped inner ring bearing structure

Info

Publication number: CN105673705A
Application number: CN201610245897.3A
Authority: CN
Inventors: 鲍玉冬; 杨闯; 赵彦玲
Original assignee: Harbin University of Science and Technology
Current assignee: Harbin University of Science and Technology
Priority date: 2016-04-20
Filing date: 2016-04-20
Publication date: 2016-06-15

Abstract

The invention discloses a novel asymmetric V-shaped inner ring bearing structure. The structure comprises a bearing outer ring (1), a rolling body steel ball (2), a retainer (3), a bearing inner ring (4) and an oil storage area (5), an inner rolling track of the outer ring is in an arc shape, an outer rolling track of the inner ring is in a V shape which is in left-right asymmetry, the rolling body steel ball (2) is located between the bearing outer ring (1) and the asymmetric V-shaped inner ring (4) and fixed by the retainer (3), and the oil storage area is formed between the asymmetric V-shaped inner ring (4) and the rolling body steel ball (2). The inclination angles of the two sides of the V-shaped structure of the outer rolling track of the inner ring are different, the asymmetric V-shaped rolling track enables a steel ball to revolve along the rolling track at the same time of rotating in the side direction, full-surface uniform contact between the steel ball and the rolling track in the working process of a bearing is achieved, the number of single point contact cycle times is lowered, the circumstance that a steel ball is abrased in a band shape caused in the using process of a traditional bearing is avoided, the steel ball abrasion rate is lowered, the local temperature is lowered, and the service life is prolonged.

Description

A kind of novel Asymmetric V-type inner-ring bearing structure

Technical field

The present invention relates to field of mechanical structure design, particularly relate to a kind of Novel bearing structure.

Background technology

Bearing is a kind of important parts in plant equipment in the present age, primarily serve the effect of support, bearing load, along with the raising of industrialization degree, the application of bearing is also more and more extensive, and this is accomplished by that the aspect such as bearing load carrying capacity and service life is had higher requirement. In traditional bearing structure, generally can there is fretting wear in rolling element steel ball after a procedure, and in uneven zonal distribution, affects steel ball service life. The invention discloses a kind of novel bearing arrangement, being mainly characterized by Internal and external cycle is disunity structure, makes rolling element steel ball can realize full unfolded surface, and full surface can be occurred to contact when bearing working. Leave reserve between inner ring and rolling element steel ball, make steel ball reach good lubricant effect, reduce temperature rise simultaneously, greatly strengthen the service life of steel ball.

By the known angular contact ball bearing of a kind of grease lubrication of CN105209773A, though the lubrication considered in steel ball motor process that this invention is careful, it is not solved by the problem that steel ball causes steel ball easily to lose efficacy with Internal and external cycle contact wear face Relatively centralized.

Summary of the invention

In order to overcome above-mentioned the deficiencies in the prior art, the invention provides and a kind of rolling element steel ball can be made to carry out the contact of full surface and extend the Novel bearing structure in bearing service life.

The technical solution adopted in the present invention is: a kind of novel Asymmetric V-type inner-ring bearing structure, its composition includes bearing outer ring, rolling element steel ball, retainer, bearing inner race, reserve, it is characterized in that: in described bearing outer ring, raceway is circular arc, there is a bit of smooth place at arc top place, and smooth place contacts with steel ball; The outer raceway of described bearing inner race is left-right asymmetry V-arrangement; Described rolling element steel ball can rollably be arranged in circular arc bearing outer ring between raceway and the outer raceway of Asymmetric V-type bearing inner race; It is outer between raceway and rolling element steel ball that described reserve is arranged at bearing inner race; Described bearing inner race is Asymmetric V-type structure, and Jiao Hejiao is unequal, Asymmetric V-type structure both sides angleαWithα′、βWithβ' respectively about bearing centre axial symmetry;Leaving reserve between described Asymmetric V-type bearing inner race and rolling element steel ball, rolling element steel ball can dispel the heat in time and lubricate.

Compared with prior art, the invention has the beneficial effects as follows avoid as the steel ball of important spare part in bearing in use occur local fretting wear. Present invention improves over bearing internal external coil structures, enable rolling element steel ball to occur full surface to contact; The inconsistent new structure of this not Internal and external cycle too increases the bearing capacity of bearing, and then extends the service life of bearing.

Accompanying drawing explanation

Fig. 1 is described bearing left view.

Fig. 2 is the structural representation of described novel bearing.

Fig. 3 is A place partial enlarged drawing in Fig. 2.

Fig. 4 is B place partial enlarged drawing in Fig. 2.

Detailed description of the invention

Below in conjunction with accompanying drawing, the present invention is further described: if Fig. 2 is a kind of novel Asymmetric V-type inner-ring bearing structural representation of the present invention, is made up of bearing outer ring, bearing inner race, rolling element, retainer and reserve.

As shown in Figure 3 and Figure 4, including bearing outer ring (1), rolling element steel ball (2), retainer (3), bearing inner race (4) and reserve (5). Described bearing outer ring (1) profile is arc, and there is a bit of smooth place at arc top place, and smooth place contacts with steel ball, and bearing inner race (4) profile is asymmetric V-arrangement, namelyα, βAngle is unequal, Asymmetric V-type structure both sides angleαWithα′、βWithβ' respectively about bearing centre axial symmetry. Its two side walls contacts with steel ball, owing to bearing inner race adopts Asymmetric V-type structure, steel ball rotary roll motion between Internal and external cycle makes steel ball that the contact of full surface occur, steel ball can be able to fully deployed, compared with traditional bearing, considerably increase friction area, it is to avoid steel ball is banding abrasion, extend steel ball service life, and then extend the service life of bearing; Simultaneously as bearing adopts Asymmetric V-type structure, it is also possible to strengthen the bearing capacity of bearing.

As it is shown on figure 3, leave certain gap between Asymmetric V-type bearing inner race (4) and rolling element steel ball (2), it is possible to better store lubricating oil, improve the lubricant effect of bearing, reduce temperature rise. In steel ball rotation process, it is possible not only to realize the uniform lubrication of whole spherome surface, and the steel ball rotation drive whole Bearing inner structure of oil lubrication can be passed through, improve bearing lubrication condition, reduce the noise produced in bearing operation process, it is ensured that bearing is efficient operation under High Quality Environment.

Above-described is only that technical scheme under thinking of the present invention belongs to scope and is not limited merely to above-described embodiment, and the technical scheme under all genus thinking of the present invention belongs to protection scope of the present invention. It should be pointed out that, for those skilled in the art, without departing from the some improvements and modifications under inventive principle premise, these improvements and modifications also should be regarded as protection scope of the present invention.

Claims

1. a novel Asymmetric V-type inner-ring bearing structure, its composition includes bearing outer ring (1), rolling element steel ball (2), retainer (3), bearing inner race (4), reserve (5), it is characterized in that: described bearing outer ring (1) interior raceway is circular arc, there is a bit of smooth place at arc top place, and smooth place contacts with steel ball; Described bearing inner race (4) outer raceway is left-right asymmetry V-arrangement; Described rolling element steel ball (2) can rollably be arranged between circular arc bearing outer ring (1) interior raceway and Asymmetric V-type bearing inner race (4) outer raceway;Described reserve (5) is arranged between bearing inner race (4) outer raceway and rolling element steel ball (2).

2. the novel Asymmetric V-type inner-ring bearing structure of one according to claim 1, is characterized in that, described bearing inner race (4) is Asymmetric V-type structure, angleαAnd angleβUnequal, Asymmetric V-type structure both sides, bearing two ends angleαWithα′、βWithβ' respectively about bearing centre axial symmetry.

3. a kind of Novel bearing structure according to claim 2, is characterized in that, leave reserve between described Asymmetric V-type bearing inner race (4) and rolling element steel ball (2).