CN201180740Y

CN201180740Y - Self-aligning roller bearing

Info

Publication number: CN201180740Y
Application number: CNU2008200336900U
Authority: CN
Inventors: 孔维涛; 韩俊锡
Original assignee: WUXI ROLLING BEARING CO Ltd
Current assignee: WUXI ROLLING BEARING CO Ltd
Priority date: 2008-04-01
Filing date: 2008-04-01
Publication date: 2009-01-14
Anticipated expiration: 2018-04-01

Abstract

The utility model discloses a self-aligning roller bearing including an inner ring and an outer ring. A cage is arranged between the inner ring and the outer ring, and composed of two stamping iron cages; radial inner chimbs are formed on the axial outer edges of the two stamping iron cages; and a spacing ring is arranged between the two stamping iron cages. Pockets are uniformly distributed along the circumference direction of the cage, and the pockets on the two cages are staggered at equal intervals. Rollers are arranged in the pockets on the two cages; the rollers leave clearances with the around corresponding pockets and the inner ring as well as the outer ring, and represent sliding fit. The self-aligning roller bearing is characterized in that radial outer flanges used for blocking off the rollers are formed on the circumferences of the axial two sides of the inner ring; and the sum of the widths of the radial outer flanges and the radial inner chimbs of the cages is smaller than the space between the excircle of the inner ring and the incircle of the outer ring. The inner ring of the self-aligning roller bearing has universality, and can be interchanged between the CA type and the CC type, so that no requirement of managing separately exists during the production process, and the requirement of mass production can be met.

Description

A kind of selfaligning roller bearing

Technical field

The utility model relates to a kind of bearing.Specifically, be the selfaligning roller bearing that inner ring has versatility, interchangeability.

Technical field

At present, the various selfaligning roller bearings that mechanically use mainly contain two kinds on CA type and CC type.As shown in Figure 2, the retainer of CA type selfaligning roller bearing is the brass solid cage, and this retainer is to process through steps such as sawed-off, cutting, turnning and millings with brass tube, its axial both sides be evenly distributed in U-shaped pocket hole.Because the pocket hole on its retainer is a U-shaped, radially outer chimb that just must the processing broad on the axial both sides of inner ring is so that keep off roller in raceway.See Fig. 2, CC type selfaligning roller bearing contains inner ring and outer ring, and retainer and some rollers are arranged between inner ring and the outer ring, and retainer wherein is made up of two punching press iron retainers, between two retainers spacer ring is arranged.Be evenly equipped with on the circumferencial direction of retainer between the pocket hole on pocket hole and two retainers and be equidistant layout.Two raceways are arranged on the circumferencial direction of inner ring, and this two raceway is corresponding with the pocket hole of two retainer circumferencial directions respectively, in the pocket hole on two retainers roller is arranged all, around this roller and the corresponding pocket hole between and all leave the gap between Internal and external cycle and be and be slidingly matched.Two punching press iron retainer outer edges wherein are processed with inner raised edge radially and this, and radially the height of inner raised edge is greater than the radius of roller, and two raceway outer edges of inner ring do not have radially outer chimb.If on the CC type, use the inner ring of CA type, because the axial both sides of retainer of the axial both sides of inner ring of CA type and CC type have radially outer chimb and inner raised edge radially respectively, this radially outer chimb and radially the radial width of inner raised edge can't install considerably beyond the spacing between the circle in inner ring cylindrical and the outer ring at all.If use the inner ring of CC type on the CA type, because the axial both sides of inner ring do not have radially outer chimb, the roller in the pressing cage pocket hole will axially skid off outside the Internal and external cycle along it, also can't carry out Bearing Installation.This shows that the inner ring of CC type selfaligning roller bearing and CA type selfaligning roller bearing all can not be general, the two can not exchange.Therefore, not only must separate management in the production process, and be difficult to satisfy the needs of mass production.

The model utility content

Problem to be solved in the utility model provides a kind of selfaligning roller bearing.The inner ring of this selfaligning roller bearing has versatility, must separate management in the production process, can satisfy the needs of mass production.

For addressing the above problem, take following technological scheme:

Selfaligning roller bearing of the present utility model comprises inner ring and outer ring, between inner ring and the outer ring retainer is arranged.Retainer wherein is made up of two punching press iron retainers, and the axially outwards of this two retainer all has radially inner raised edge, and spacer ring is arranged between them.Be evenly equipped with on the circumferencial direction of retainer between the pocket hole on pocket hole and two retainers and be equidistant interlaced arrangement.Two raceways are arranged on the circumferencial direction of inner ring, this two raceway is corresponding with the pocket hole of two retainer circumferencial directions respectively, in the pocket hole on two retainers roller is arranged all, around this roller and the corresponding pocket hole between and all leave the gap between inner ring and outer ring and be and be slidingly matched.Be characterized in all being useful on the outside rib in the footpath of blocking roller on the axial both sides circumferencial direction of inner ring, and should the footpath outwards the radially inner raised edge width sum of rib and retainer less than the spacing between justifying in inner ring cylindrical and the outer ring.

Take such scheme, have the following advantages:

Owing to all be useful on the outside rib in the footpath of blocking roller on the axial both sides circumferencial direction of its inner ring of selfaligning roller bearing of the present utility model, when using on CC type selfaligning roller bearing, as long as the radially inner raised edge width sum that makes the radially inner raised edge outside rib in footpath narrower slightly, that make inner ring of two punching press iron retainer outer edges and punching press iron outer edge is less than the spacing between the Internal and external cycle.And the inner ring of CA type selfaligning roller bearing itself just has radially outer chimb.This shows that this inner ring both can be used on the CA type selfaligning roller bearing, can be used in again on the CC type selfaligning roller bearing, versatility is good, not only must separate management in the production process, and can satisfy the needs of mass production.

Description of drawings

Fig. 1 is the CA type selfaligning roller bearing structural representation in the background technique;

Fig. 2 is the CC type selfaligning roller bearing structural representation in the background technique;

Fig. 3 is a selfaligning roller bearing structural representation of the present utility model.

Embodiment

As shown in drawings, selfaligning roller bearing of the present utility model contains inner ring 6 and outer ring 4, is provided with retainer 3 between inner ring 6 and the outer ring 4.Retainer 3 wherein is made up of two punching press iron retainers, and the axially outwards of this two retainer all is processed with radially inner raised edge 7, also is provided with spacer ring 2 between them.Be processed with the pocket hole on the circumferencial direction of retainer 3 equably, be equidistant interlaced arrangement between the pocket hole on two retainers 3.Two raceways are arranged on the circumferencial direction of inner ring 6, this two raceway is corresponding with the pocket hole of two retainer 3 circumferencial directions respectively, in each pocket hole on two retainers 3 roller 1 is installed all, around this roller and the corresponding pocket hole between and inner ring 6 and 4 of outer rings all leave the gap and be and be slidingly matched.Wherein, all be processed with the outside rib 5 in footpath that is used to block roller 1 on the axial both sides circumferencial direction of inner ring 6, and should the footpath outwards the radially inner raised edge 7 width sums of rib and retainer 3 less than the spacing between round in inner ring 6 cylindricals and the outer ring 4.

Claims

1. a selfaligning roller bearing comprises inner ring (6) and outer ring (4), between inner ring (6) and outer ring (4) retainer (3) is arranged; Retainer wherein (3) is made up of two punching press iron retainers, and the axially outwards of this two retainer all has radially inner raised edge (7), and spacer ring (2) is arranged between them; Be evenly equipped with on the circumferencial direction of retainer (3) between the pocket hole on pocket hole and two retainers (3) and be equidistant interlaced arrangement; Two raceways are arranged on the circumferencial direction of inner ring (6), this two raceway is corresponding with the pocket hole of two retainers (3) circumferencial direction respectively, roller (1) is all arranged in the pocket hole on two retainers (3), around this roller and the corresponding pocket hole between and all leave the gap and be between inner ring (6) and outer ring (4) and be slidingly matched; It is characterized in that all being useful on the outside rib in footpath (5) that blocks roller (1) on the axial both sides circumferencial direction of inner ring (6), and should the footpath outwards radially inner raised edge (7) the width sum of rib and retainer (3) less than the spacing between round in inner ring (6) cylindrical and outer ring (4).