CN202001499U

CN202001499U - Deviation preventing roller and rolling bearing with same

Info

Publication number: CN202001499U
Application number: CN2011200697192U
Authority: CN
Inventors: 孙建新
Original assignee: NEWSUN (NINGBO) BEARING MANUFACTURING Co Ltd
Current assignee: NEWSUN (NINGBO) BEARING MANUFACTURING Co Ltd
Priority date: 2011-03-14
Filing date: 2011-03-14
Publication date: 2011-10-05
Anticipated expiration: 2021-03-14

Abstract

The utility model relates to a deviation preventing roller, which is characterized in that: both ends of the roller are provided with a convex baffle edge which is vertical to the length direction along the length direction; and the middle part of the roller has convexity and is provided with a waist drum-shaped outer end face. The utility model also discloses a rolling bearing with the roller. Compared with the prior art, the utility model has the advantages that: the roller is subjected to the action of eccentric force during deviation, the baffle edges can bear most of axial acting force at the moment, and friction heat is basically generated on the baffle edges and edges on both sides of an inner ring and an outer ring, so that a main body part and a channel of the roller are protected, and the wear rate is greatly reduced; meanwhile, due to the design of the waist drum-shaped outer end face, the acting force has non-stepped distribution property and high gradualness, the roller has a self-regulating effect during deviation, and the service life of the bearing is prolonged.

Description

Anti-deviation roller and application have the rolling bearing of this roller

Technical field

The utility model relates to a kind of roller, and the utility model also relates to uses the rolling bearing that this roller is arranged.

Background technique

Bearing is a kind of common mechanical part, and is of a great variety, but in the majority with roller bearing, generally comprises inner ring, outer ring, retainer and roller, and retainer is arranged between inner ring and the outer ring, separates and the guide rolls motion.As shown in Figure 1, when the deviation sideslip appearred in inner ring and outer ring, the interior raceway groove of roller and inner ring and the outer raceway groove of outer ring all had stronger radial effect power, are in this running state for a long time, roller unbalance stress one, though retainer has certain anti-deviation effect, because the restriction of retainer material, retainer wearing and tearing and destruction are also very big, on the other hand, the internally outer raceway groove arris of roller produces greatly and destroys, even is easy to generate " killing ", uses the bulk life time of bearing to be affected.

The speed-raising of industrial machinery, comprise the speed-raising of high-speed computer driving mechanism, and the speed-raising of automobile, train, the high rotating speed of bearing, long-life, high loading, high reliability have been proposed stricter requirement and higher index, and wear-resistant, high loadability and life-span, long bearing was more and more favored.

The model utility content

Technical problem to be solved in the utility model is the roller that the low long service life of a kind of wear rate is provided at the above-mentioned state of the art.

Another technical problem to be solved in the utility model provides the rolling bearing of the low long service life of a kind of wear rate.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of anti-deviation roller, it is characterized in that the described roller two ends rib that all has vertical length direction projection alongst, and the middle part has convexity and is dolioform exterior edge face.

Further, described rib and roller are one-body molded.

A kind of rolling bearing, comprise inner ring, outer ring, roller and separate the also retainer of guide rolls motion, this retainer is arranged between inner ring and the outer ring, it is characterized in that the described roller two ends rib that all has vertical length direction projection alongst, the middle part has convexity and is dolioform exterior edge face.

Compared with prior art, advantage of the present utility model is: when sideslip, roller is subjected to the eccentric force effect, at this moment rib can bear most of axial force, the frictional heat that produces also occurs on the rib that reaches the Internal and external cycle both sides on the rib basically, protected roller body part and raceway groove, wear rate reduces greatly; Simultaneously, the no step evolution of the design function power of dolioform outer side surface distribution, and gradual good, have the self-regulated effect during sideslip, help improving the working life of bearing.

Description of drawings

Structural representation when Fig. 1 is prior art middle (center) bearing sideslip.

Fig. 2 is embodiment's 1 structural representation.

Fig. 3 is a roller structure schematic representation among Fig. 2.

Fig. 4 makes time spent structure for amplifying schematic representation for embodiment is subjected to eccentric force.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Embodiment 1, as shown in Figures 2 and 3, rolling bearing in the present embodiment comprises inner ring 3, outer ring 1, roller 2 and separates the also retainer 4 of guide rolls 2 motions, this retainer 4 is arranged between inner ring 3 and the outer ring 1, roller 2 is the two ends rib 21 that all has vertical length direction projection alongst, the middle part has convexity and is dolioform exterior edge face, and rib 21 is one-body molded with roller 2.

As shown in Figure 4, when sideslip, roller is subjected to eccentric force F1 or F2 effect, at this moment rib 21 can bear most of axial force, the frictional heat that produces also occurs on the rib that reaches the Internal and external cycle both sides on the rib 21 basically, has protected roller body part and raceway groove, and wear rate reduces greatly; Simultaneously, the no step evolution of the design function power of dolioform outer side surface distribution, and gradual good, have the self-regulated effect during sideslip, help improving the working life of bearing.

Claims

1. anti-deviation roller is characterized in that the described roller two ends rib that all has vertical length direction projection alongst, and the middle part has convexity and is dolioform exterior edge face.

2. anti-deviation roller according to claim 1 is characterized in that described rib and roller are one-body molded.

3. the application rolling bearing of requirement 1 or 2 described anti-deviation rollers of having the right, comprise inner ring, outer ring, roller and separate the also retainer of guide rolls motion, this retainer is arranged between inner ring and the outer ring, it is characterized in that the described roller two ends rib that all has vertical length direction projection alongst, the middle part has convexity and is dolioform exterior edge face.