CN2706620Y

CN2706620Y - Roller bearing

Info

Publication number: CN2706620Y
Application number: CN 200420032129
Authority: CN
Inventors: 车德礼; 苏立樾
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-06-18
Filing date: 2004-06-18
Publication date: 2005-06-29
Anticipated expiration: 2014-06-18

Abstract

The utility model relates to a cylinder roller bearing which comprises an outer ring and an inner ring. At least one retainer is arranged between the outer ring and the inner ring, and each pocket hole of the retainer is respectively provided with cylinder rollers. The utility model is characterized in that both end surfaces of the cylinder rollers are respectively provided with concave apertures, and the retainer is an n-shaped punching retainer. The retainer corresponding to the concave apertures on both of the two end surfaces of the cylinder rollers are respectively and convexly provided with locking tongues, and each locking tongue is embedded in the corresponding concave aperture on the end surface of the cylinder rollers and is tightly fit. The utility model which contains much longer and more cylinder rollers, enhances the rated moving load by 10% and also prolongs service life by 30%-50% has the advantages of simple structure, convenient installation of roller bearing, safety and reliability, raw material saving, low material cost, light weight, simple assembly, etc.

Description

Roller bearing

(1) technical field

The utility model relates to a kind of bearing, particularly relates to a kind of roller bearing.

(2) background technique

Roller bearing is one of parts commonly used in the modern production equipment.It mainly comprises outer ring, inner ring, roller and retainer.At present, the retainer of roller bearing can be divided into solid cage and traditional " second " shaped steel plate pressing cage two big classes, because between the lid of solid cage and the seat is to be connected with rivet, the perpendicularity of its rivet hole is difficult to assurance, can influence balance when running up.In addition, the pocket hole is that face contacts with roller, and the gap is little, unfavorable lubricated, easy to wear during motion, therefore, solid cage is many to be made with the good copper product of wear resistance, but this makes the cost of retainer increase substantially again simultaneously, and pressing cage is used for middle-size and small-size roller bearing more, owing to be subjected to the restriction of the mistake beam strength between the two pocket holes, the roller quantity in the bearing requires to lack to adorn the 1-2 grain than normal design, thereby reduced the rated load ability of bearing, reduced the working life of roller bearing.

(3) summary of the invention

Problems such as the purpose of this utility model provides a kind of roller bearing, is fully guaranteeing and is optimizing on the basis of existing rolling bearing performance, and installation inconvenience, cost height, load-carrying ability that the existing roller bearing of solution exists are not high, and working life is short.

The technological scheme that adopts is:

Roller bearing comprises the outer ring, inner ring.Between outer ring and inner ring, install a retainer at least, in the pocket hole of retainer, cylindrical roller is housed respectively.Be characterized in that retainer is a pressing cage, on the retainer both ends of the surface respectively one be equipped with a plurality of mutual correspondences, and the locking tongue that equates at interval constitutes  type pressing cage, and depression is arranged respectively on the roller both ends of the surface.Per two corresponding mutually locking tongues difference correspondences embed in the depression at cylindrical roller two ends on the retainer, and closely cooperate.

The utility model can be made single-row, biserial, four row or multiple row roller bearings according to the quantity of overcoat.

Major advantage of the present utility model is:

1, simple in structure, roller bearing is easy for installation, one strikes gently with beautiful spotflower herb or rod, and roller can be packed in the retainer pocket hole, and never drop-off, and is safe and reliable.

2, save material, solid cage was centrifugal casting brass originally, the price height, and Heavy Weight now is 35 or 45 cold rolled sheets, and blank can be welded, and cost of material is very low, and is in light weight.

3, compare with brass solid cage and " second " shaped steel plate pressing cage, it is longer that it can hold length, more cylindrical roller, thereby can improve the dynamic load rating and the rated static load of bearing, finally reach and improve the bearing effect in working life, by theoretical calculation, generally can improve dynamic load rating 10%, bearing can improve 30-50% working life.

4, assembling is simple, as long as pressing cage is placed in the middle of the outer ring of single-row, the biserial of the two ribs of band or four-line column roller bearing, adorn three cylindrical rollers earlier and tap down three with beautiful spotflower herb or rod, respectively in the retainer pocket hole of about 120 degree, this retainer is located fully, in the retainer pocket hole of very easily whole rollers being packed into then in bearing outer ring.

(4) description of drawings

Fig. 1 is the sectional view of the utility model single row roller bearing.

Fig. 2 is the sectional view of the utility model Biserial cylindrical roller bearing.

Fig. 3 is the sectional view of the utility model four-line column roller bearing.

(5) embodiment

Embodiment one

See also Fig. 1, embodiment one is a single row roller bearing, and it comprises an outer ring 1, inner ring 2, one group of cylindrical roller 3 and retainer 4.Wherein, outer ring 1 is identical with existing bearing with inner ring 2, is technology as well known to those skilled in the art, be characterized on pressing cage 4 both ends of the surface that one is equipped with a plurality of mutual correspondences respectively, and equate at interval with tongue 5, constitute  type pressing cage, the two ends of roller 3 have depression 6 respectively.Per two corresponding mutually locking tongues 5 can be distinguished in the depression 6 at corresponding embedding cylindrical roller 3 two ends on the  type pressing cage 4, and closely cooperate.

Embodiment two

See also figure two, embodiment two is a Biserial cylindrical roller bearing, and it comprises an outer ring 1, inner ring 2, two groups of cylindrical rollers 3 and two pressing cages 4.Two pressing cages 4 are installed between outer ring 1 and the inner ring 2 side by side, and two groups of cylindrical rollers 3 are installed in respectively on two pressing cages 4, and the structural feature of pressing cage 4 and cylindrical roller 3 is in embodiment's one explanation, so no longer narration.

Embodiment three

See also figure three, embodiment three is a four-line column roller bearing, and it comprises two outer rings 1, two inner rings 2, four groups of rollers 3 and four pressing cages 4.It is technology as well known to those skilled in the art that above-mentioned component-assembled is become four row roller bearings, so no longer narration.

Claims

1, roller bearing, comprise outer ring (1), inner ring (2), at least install a retainer (4) between outer ring (1) and the inner ring (2), in each pocket hole of retainer (4), be equiped with cylindrical roller (3) respectively, it is characterized in that on described cylindrical roller (3) both ends of the surface depression (6) being arranged respectively, retainer (4) is The type pressing cage, the corresponding position of retainer (4) depression (6) last and on each cylindrical roller (3) biend is equipped with locking tongue (5) respectively, in the depression (6) on each locking tongue (5) embedding corresponding with it cylindrical roller (3) end face, closely cooperate.