CN211599274U

CN211599274U - Curve tapered roller bearing

Info

Publication number: CN211599274U
Application number: CN202020115951.4U
Authority: CN
Inventors: 刘洋; 王立平; 韩长涛
Original assignee: Dalian Grandway Bearing Co ltd
Current assignee: Dalian Grandway Bearing Co ltd
Priority date: 2020-01-18
Filing date: 2020-01-18
Publication date: 2020-09-29
Anticipated expiration: 2030-01-18

Abstract

The utility model provides a curve tapered roller bearing, includes outer lane, inner circle, a plurality of cydariform roller, annular holder and annular spring collar, its main points are the outer wall of inner wall and the inner circle of outer lane on correspond the angle respectively and be provided with the oblique rolling groove of arc, a plurality of cydariform rollers block respectively and establish in the oblique rolling groove of arc, the cambered surface and a plurality of cydariform roller both sides cambered surface phase-match of the oblique rolling groove of arc. The annular retainer is a conical retainer, a plurality of roller positioning holes are respectively arranged on the annular retainer at equal intervals, the annular retainer is arranged between the outer ring and the inner ring, a plurality of drum-shaped rollers are respectively clamped in the roller positioning holes, a retainer ring clamping groove is arranged on one side of the outer wall of the inner ring, and the annular spring retainer ring is clamped in the retainer ring clamping groove. Compared with the traditional structure, the utility model has no sliding friction between the roller of the traditional tapered roller bearing and the large flange of the inner ring, and achieves the theoretical pure rolling; the main wear cause of the bearing is eliminated, thereby prolonging the service life of the bearing.

Description

Curve tapered roller bearing

Technical Field

The utility model relates to a bearing technical field especially relates to a curve tapered roller bearing.

Background

In a traditional single-row conical bearing, a generatrix of a roller is a straight line, and a large end of the roller is provided with a spherical basal plane. The bearing can bear combined radial and (unidirectional) axial load. When bearing force, the ball base surface and the large flange of the inner ring generate pressure and have sliding friction. Thereby causing wear and even damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide a can bear radial and (folk prescription to) axial combined load, a curve tapered roller bearing of no flange.

The utility model adopts the technical proposal that:

the utility model provides a curve tapered roller bearing, includes outer lane, inner circle, a plurality of cydariform roller, annular holder and annular spring collar, its main points are the outer wall of inner wall and the inner circle of outer lane on correspond the angle respectively and be provided with the oblique rolling groove of arc, a plurality of cydariform rollers block respectively and establish in the oblique rolling groove of arc, the cambered surface and a plurality of cydariform roller both sides cambered surface phase-match of the oblique rolling groove of arc. The annular retainer is a conical retainer, a plurality of roller positioning holes are respectively arranged on the annular retainer at equal intervals, the annular retainer is arranged between the outer ring and the inner ring, a plurality of drum-shaped rollers are respectively clamped in the roller positioning holes, a retainer ring clamping groove is arranged on one side of the outer wall of the inner ring, and the annular spring retainer ring is clamped in the retainer ring clamping groove.

Compared with the traditional structure, the utility model has no sliding friction between the roller of the traditional tapered roller bearing and the large flange of the inner ring, and achieves the theoretical pure rolling; the main wear cause of the bearing is eliminated, thereby prolonging the service life of the bearing. And because the arc surface of the arc-shaped inclined rolling groove is matched with the arc surfaces on two sides of the plurality of drum-shaped rollers, compared with the traditional tapered roller bearing, the bearing can play a role in aligning to a certain degree, and can still be self-adjusted under the eccentric condition, so that the rollers are adhered to the inner and outer ring raceways. The invention uses the spring retainer ring to replace the small retaining edge of the traditional single-row cone, so that the process of shrinking the retainer is omitted in the process of assembling the bearing, and the retainer shrinking tire which is necessary in the process of assembling the traditional tapered roller bearing is not needed.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a transverse sectional view of the present invention.

Fig. 3 is a schematic view of the extended lines of the force lines of the drum-shaped roller contact points F1, F2, F3 and F4 of the present invention.

Detailed Description

The utility model provides a curve tapered roller bearing, includes outer lane 1, inner circle 2, a plurality of cydariform roller 3, annular cage 4 and annular spring retainer ring 5, its main points are the outer wall of outer lane 1 and inner circle 2 on correspond the angle respectively and be provided with arc inclined rolling groove 6, a plurality of cydariform roller 3 block respectively establishes in arc inclined rolling groove 6, the cambered surface of arc inclined rolling groove 6 and the cambered surface phase-match in a plurality of cydariform roller 3 both sides, can guarantee a plurality of cydariform roller 3 and outer lane 1 two point contact F1, F2 and inner circle 2 two point contact F3, F4, two contact points F3 of inner circle 2, F4 line extension line and two contact points F1 of outer lane 1, F2 line extension line intersect at the centre of gyration of bearing, can guarantee the pure roll of a plurality of cydariform roller 3. Annular holder 4 be conical holder, be provided with a plurality of roller locating holes 7 respectively at the equidistance on annular holder 4, annular holder 4 sets up between outer lane 1 and inner circle 2, a plurality of cydariform rollers 3 block respectively and establish in a plurality of roller locating holes 7, be provided with retaining ring draw-in groove 8 in outer wall one side of inner circle 2, annular spring retainer ring 5 blocks and establishes in retaining ring draw-in groove 8, annular spring retainer ring 5 can guarantee that inner circle 2, a plurality of cydariform roller 3, annular holder 4 form interior subassembly, do not set apart in installation and the handling.

Claims

1. A curve tapered roller bearing comprises an outer ring (1), an inner ring (2), a plurality of drum-shaped rollers (3), an annular retainer (4) and an annular spring retainer ring (5), and is characterized in that arc-shaped inclined rolling grooves (6) are respectively arranged on the inner wall of the outer ring (1) and the outer wall of the inner ring (2) at corresponding angles, the plurality of drum-shaped rollers (3) are respectively clamped in the arc-shaped inclined rolling grooves (6), and the cambered surfaces of the arc-shaped inclined rolling grooves (6) are matched with the cambered surfaces on two sides of the plurality of drum-shaped rollers (3); the annular retainer (4) is a conical retainer, a plurality of roller positioning holes (7) are respectively arranged on the annular retainer (4) at equal intervals, the annular retainer (4) is arranged between the outer ring (1) and the inner ring (2), a plurality of drum-shaped rollers (3) are respectively clamped in the roller positioning holes (7), a retainer ring clamping groove (8) is arranged on one side of the outer wall of the inner ring (2), and the annular spring retainer ring (5) is clamped in the retainer ring clamping groove (8).