CN201106630Y

CN201106630Y - Composite joint dual-column cylindrical roller bearing

Info

Publication number: CN201106630Y
Application number: CNU2007200928877U
Authority: CN
Inventors: 常煜璞; 史松霞; 张阗; 宋吉祥; 孟曙光; 王玉国
Original assignee: Luoyang Bearing Science and Technology Co Ltd
Current assignee: Luoyang Bearing Science and Technology Co Ltd
Priority date: 2007-11-13
Filing date: 2007-11-13
Publication date: 2008-08-27
Anticipated expiration: 2017-11-13

Abstract

The utility model relates to a composite joint double-line cylindrical roller bearing which consists of an outer ring, a first, a second and a third inner rings, a clip ring, a first and a second line rollers and bolts, wherein, the first inner ring and the bolt form a first layer joint structure, the outer ring is an integrated structure, oil tanks and oil holes are arranged on the circumference of the outside diameter on the first inner ring and are coupled by the bolts, and the wrapping angles between the oil tanks and the oil holes can be adjusted in the range of 0 to 30DEG; the second inner ring, the third inner ring, the clip ring, and the first line and the second line rollers form a second layer which is used for bearing larger radial load, the first and the second line rollers are respectively installed in the two rollaway nests of the first inner ring, the clip ring is snapped in the groove on the rollaway nest of the third inner ring, one end surface of the second inner ring contacts with the small end surface of the third inner ring and can separate, the outside diameters of the second inner ring and the third inner ring are provided with trapezoidal grooves so as to form dustproof and leakproof loops which can be separated mutually.

Description

A kind of composite joint Biserial cylindrical roller bearing

Technical field

The utility model belongs to technical field of bearings, particularly a kind of composite joint Biserial cylindrical roller bearing.

Background technique

Joint shaft bearing is also more according to its structure of difference of purposes, but commonly used be that the roller surface of bearing outer ring and bearing inner race is arc, inner and outer ring is the slip working surface under the bearing working state, and is simple in structure.

As plain radial bearing, form by an inner ring and an outer ring, bear the less thrust load of radial load and either direction, have oil groove and oilhole, wrapping angle 0-30 °.Deficiency is that the radial load that bears is less, and the outer ring is not whole simultaneously, the installation when being unfavorable for using, and the bearing running accuracy is difficult to guarantee that it is poor with leak preventing effect to prevent dust, and can not satisfy the particular host demand.

Summary of the invention

At above-mentioned deficiency, the utility model has designed a kind of composite joint Biserial cylindrical roller bearing, integral body is made in the joint shaft bearing outer ring, adopt double-row cylindrical roller to bear radial load simultaneously, can either guarantee the running accuracy of bearing, and can bear bigger radial load, and can also guarantee the wrapping angle of bearing usage requirement, assemble simple and convenient simultaneously.

For achieving the above object, the utility model has adopted following technological scheme:

Described composite joint Biserial cylindrical roller bearing is to be made of outer ring, first inner ring, second inner ring, the 3rd inner ring, check ring, the first row roller, secondary series roller, screw, wherein outer ring, first inner ring and screw are formed the first layer articulation structure, the outer ring is an overall structure, all on the external diameter circumference, be provided with oil groove and oilhole on the outer ring and first inner ring, connect by screw, the wrapping angle between the outer ring and first inner ring can be adjusted in 0-30 ° of scope; Second inner ring, the 3rd inner ring, check ring, the first row roller and secondary series roller are formed the second layer and are used for bearing bigger radial load, the first row roller and secondary series roller are contained in respectively in two raceway grooves of first inner ring, check ring is stuck in the groove on the 3rd inner ring raceway, an end face of second inner ring also can separate with the small end face contact of the 3rd inner ring, on second inner ring and the 3rd inner ring top external diameter trapezoidal groove is arranged, form dustproof and leakproof loop, and second inner ring and the 3rd inner ring can be separated from each other.

Owing to adopt aforesaid technological scheme, the utlity model has following good effect:

1, the superiority with joint shaft bearing and roller bearing after the employing of composite joint Biserial cylindrical roller bearing makes joint shaft bearing improve is melted into a whole.Can when satisfying big aligning wrapping angle, can bear big radial load again, can also guarantee that bearing processing reaches higher running accuracy;

2, lubricated convenient in the use, dustproof good leak-proof effect, the specific demand of main frame has been satisfied in easy installation and removal.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Among Fig. 1: 1-outer ring; 2-the first inner ring; 3-the second inner ring; 4-the three inner ring; 5-check ring; 6-the first row roller; 7-secondary series roller; 8-screw.

Embodiment

As shown in Figure 1: of the present utility model in when assembling, outer ring (1) and first inner ring (2) assembled keep flat; Second liang of row roller (7) put into first inner ring (2) raceway, again check ring (5) is filled in to a halfwidth from the interior fourth contact of secondary series roller (7) assembly for one with the 3rd inner ring (4) dress, after treating that the first row roller (6) is packed in first inner ring (2), again check ring (5) and the 3rd inner ring (4) assembly are pushed in the interior fourth contact of the first row roller (6) and secondary series roller (7) fully, and second inner ring (3) put into to contact with the 3rd inner ring (4) install; Between the outer ring (1) and first inner ring (2) that screw (8) is screwed in, keep outer ring (1) and first inner ring (2) to link at last, make the not sequence of sanqu songs within a particular musical mode of bearing; Wherein outer ring (1) is that overall structure is with better assurance manufacturing precision, the axial displacement of check ring (5) restriction the 3rd inner ring (4), and to greatest extent slot milling to guarantee on the circumference of two raceway grooves of first inner ring (2), filling roller to improve bearing capacity, be processed with trapezoidal groove on second inner ring (3) and the 3rd inner ring (4), form dustproof and leakproof loop, run off to prevent that dirt from entering with lubricating grease, second inner ring (3) and the 3rd inner ring (4) adopt separated type, are convenient to assembling.

Claims

1, a kind of composite joint Biserial cylindrical roller bearing, it is characterized in that: this bearing is by outer ring (1), first inner ring (2), second inner ring (3), the 3rd inner ring (4), check ring (5), the first row roller (6), secondary series roller (7), screw (8) constitutes, wherein outer ring (1), first inner ring (2) and screw (8) are formed the first layer articulation structure, outer ring (1) is an overall structure, all on the external diameter circumference, be provided with oil groove and oilhole on outer ring (1) and first inner ring (2), connect by screw (8), the wrapping angle between outer ring (1) and first inner ring (2) can be adjusted in 0-30 ° of scope; Second inner ring (3), the 3rd inner ring (4), check ring (5), the first row roller (6) and secondary series roller (7) are formed the second layer and are used for bearing bigger radial load, the first row roller (6) and secondary series roller (7) are contained in respectively in two raceway grooves of first inner ring (2), check ring (5) is stuck in the groove on the 3rd inner ring (4) raceway, an end face of second inner ring (3) also can separate with the small end face contact of the 3rd inner ring (4), on second inner ring (3) and the 3rd inner ring (4) top external diameter trapezoidal groove is arranged, form dustproof and leakproof loop, and second inner ring (3) and the 3rd inner ring (4) can be separated from each other.