CN201513471U

CN201513471U - Anti-vibration aligning roller bearing

Info

Publication number: CN201513471U
Application number: CN2009201879082U
Authority: CN
Inventors: 王学平; 李传宪; 戴德义; 邓有云
Original assignee: LIU'AN SCROLL BEARING Co Ltd
Current assignee: LIU'AN SCROLL BEARING Co Ltd
Priority date: 2009-09-30
Filing date: 2009-09-30
Publication date: 2010-06-23
Anticipated expiration: 2019-09-30

Abstract

The utility model discloses an anti-vibration aligning roller bearing, which is characterized in that an outer ring with an inner spherical raceway and an inner ring with a middle flange are adopted, a retainer is of a double-semi-solid structure, and two groups of spherical rollers are symmetrically arranged on the retainer; and the retainer is made of spheroidal graphite cast iron, the retainer is integrated with a middle retainer ring, and the end surfaces at opposite sides of the two groups of spherical rollers are of a spherical base surface. The anti-vibration aligning roller bearing is more suitable for the vibration machines, and can prolong the service life.

Description

A kind of anti-vibration center-regulating roller bearing

Technical field

The utility model relates to a kind of selfaligning roller bearing, especially has the selfaligning roller bearing of resistance to shock.

Background technique

At present, the selfaligning roller bearing that vibrating machine uses all is the CA type mostly, retainer wherein is a machining brass spare, implement interior guiding by the middle external diameter of inner ring, be applicable to eccentrically loaded situation with its aligning structure, but this form resistance to shock by interior guiding is poor, and retainer ruptures easily, damages, and working life is short.

The model utility content

The utility model is for avoiding above-mentioned existing in prior technology deficiency, a kind of anti-vibration center-regulating roller bearing is provided, so that it is applicable to vibrating machine more, increasing the service life.

The utility model technical solution problem adopts following technological scheme.

The structural feature of the utility model anti-vibration center-regulating roller bearing is: adopt the outer ring and the inner ring that has centre rib of internal spherical surface raceway, retainer is two half entity structures, and two groups of convex symmetrical rollers are symmetrical arranged on retainer; Described retainer is to be material with spheroidal graphite cast iron, and retainer and middle ring washer are the integral type setting, and the end face that described two groups of convex symmetrical rollers are in a relative side is the ball basal plane.

Compared with the prior art, the utility model beneficial effect is embodied in:

1, the utility model retainer and middle ring washer are the integral type setting, are directly guided by outer ring raceway, and retainer is material with spheroidal graphite cast iron simultaneously, realizes good selflubricating, has improved the intensity of retainer significantly, and bearing improves working life greatly.

2, the utility model one end is that the symmetrically arranged spherical roller of ball basal plane has been avoided the generation of torque reaction and the appearance that stress is concentrated, have good seismic resistance, has reduced the spoilage of vibrating machine etc., can also prolong the working life of vibrating machine etc.

Description of drawings

Fig. 1 is the utility model structural representation.

Number in the figure: ring washer in 1 outer ring, 2 inner rings, 2a centre rib, 3 retainers, 4 convex symmetrical rollers, 5.

Below pass through embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings.

Embodiment

Referring to Fig. 1, in the present embodiment, adopt the outer ring 1 and the inner ring 2 that has centre rib 2a of internal spherical surface raceway, retainer 3 is two half entity structures, two groups of convex symmetrical rollers 4 are symmetrical arranged on retainer 3;

In concrete the enforcement, retainer 3 is to be material with spheroidal graphite cast iron, and retainer 3 is the integral type setting with middle ring washer 5, and the end face that two groups of convex symmetrical rollers 4 are in a relative side is the ball basal plane.

In the present embodiment, retainer 3 is a material with spheroidal graphite cast iron, this Tensile strength σ _b＞400MPa, specific elongation δ＞20%, hardness＞220HB, a _k＞40J/cm ², microstructure is tiny pearlite, its self-lubricating function has in addition greatly improved the intensity of retainer, has effectively prolonged working life of bearing.

Claims

1. anti-vibration center-regulating roller bearing is characterized in that adopting the outer ring (1) of internal spherical surface raceway and has the inner ring (2) of centre rib (2a), and retainer (3) is two half entity structures, and two groups of spherical rollers (4) are symmetrical arranged on retainer (3); Described retainer (3) is to be material with spheroidal graphite cast iron, and retainer (3) is the integral type setting with middle ring washer (5), and the end face that described two groups of spherical rollers (4) are in a relative side is the ball basal plane.