CN209875726U

CN209875726U - Single-row drum-shaped short roller bearing

Info

Publication number: CN209875726U
Application number: CN201920573469.2U
Authority: CN
Inventors: 朱晓宏; 时飞; 郭晶; 王晶
Original assignee: Jiangsu Wanda Special Bearing Co Ltd
Current assignee: Jiangsu Wanda Special Bearing Co Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2019-12-31
Anticipated expiration: 2029-04-25

Abstract

The utility model relates to a single-row drum-shaped short roller bearing, which comprises an outer ring and an inner ring; an outer ring raceway is arranged on the inner ring surface of the outer ring, an inner ring raceway is arranged on the outer ring surface of the inner ring, and rollers and a retainer for mounting the rollers are arranged between the outer ring raceway and the inner ring raceway; the roller is drum-shaped, and the drum-shaped curvature of the roller is R; the diameter of the outer ring raceway is De; r is more than or equal to De/2 and less than 2 De. The bearing has strong loading capacity and can bear large axial force and radial force at the same time.

Description

Single-row drum-shaped short roller bearing

Technical Field

The utility model relates to a bearing technical field, concretely relates to single-row cydariform short roller bearing.

Background

In the actual use process, some special environments need to use the bearing which has stronger load capacity and can bear larger axial force and radial force simultaneously, such as the door side of a forklift, and the requirement on whether the bearing can be aligned with the bearing is not too large.

Compared with a single-row roller bearing with the same diameter, the conventional single-row ball bearing has weaker load capacity;

the single-row self-aligning roller bearing has self-aligning performance, so that the misalignment of the shaft center caused by the deflection or the non-concentricity of the shaft or the shell can be automatically adjusted, and the design ensures that the bearing mainly bears radial load and simultaneously can bear smaller axial load.

Such as the patent: 201620329191.0 discloses a single row self aligning roller bearing.

Disclosure of Invention

In order to solve the problem, the utility model provides a single-row cydariform short roller bearing who has stronger load-carrying capacity, can bear great axial and radial force simultaneously.

A single-row drum-shaped short roller bearing comprises an outer ring and an inner ring; an outer ring raceway is arranged on the inner ring surface of the outer ring, an inner ring raceway is arranged on the outer ring surface of the inner ring, and rollers and a retainer for mounting the rollers are arranged between the outer ring raceway and the inner ring raceway; the roller is drum-shaped, and the drum-shaped curvature of the roller is R; the diameter of the outer ring raceway is De; r is more than or equal to De/2 and less than 2 De.

The load capacity of the ball bearing is far greater than that of a single-row ball bearing with the same diameter, and the ball bearing can bear larger radial force and axial force at the same time; meanwhile, the circle center of the arc surface of the drum-shaped roller is not on the bearing axis, and compared with a single-row roller bearing, the design has no aligning capability, but simultaneously bears larger radial load and larger axial load; meanwhile, because the self-aligning capability is not provided, the sealing is designed without considering the influence of the deviation angle on the position of the sealing cover, and the sealing installation is simpler and more convenient.

The technical scheme is further improved and refined, two ends of the roller are planes, and the length of the roller is less than or equal to the diameter of the roller; the friction between the rollers and the cage is reduced.

The technical scheme is further improved and refined, and a seal is arranged between the outer ring and the inner ring.

The technical scheme is further improved and refined, and the retainer is a wave-shaped retainer with nail holes or claws.

The technical scheme is further improved and refined, the retainer comprises two wave-shaped ring pieces, a gap is reserved between the two ring pieces and the two ring pieces are connected by a plurality of supporting rods to form a plurality of pockets capable of containing the rollers, and the pockets and the supporting rods are alternated; the two sides of the pocket are planes and are opposite to the two end faces of the roller.

The utility model has the advantages of, reasonable in design, simple structure has stronger loading capacity, can bear great axial and radial force simultaneously.

Drawings

FIG. 1 is a schematic view of a single row drum type short roller bearing structure.

FIG. 2 is a schematic diagram of a half-section structure of a single-row drum-shaped short roller bearing.

In the figure, an outer ring 1, an inner ring 2, a retainer 3, a ring sheet 3-1, a support rod 3-2 and a roller 4.

Detailed Description

As shown in fig. 1-2, a single-row drum-shaped short roller bearing comprises an outer ring 1 and an inner ring 2; an outer ring raceway is arranged on the inner ring surface of the outer ring 1, an inner ring raceway is arranged on the outer ring surface of the inner ring 2, and rollers 4 and a retainer 3 for mounting the rollers 4 are arranged between the outer ring raceway and the inner ring raceway; the roller 4 is drum-shaped, and the drum-shaped curvature of the roller 4 is R; the diameter of the outer ring raceway is De; r is more than or equal to De/2 and less than 2 De; two ends of the roller 5 are planes, and the length of the roller 4 is less than or equal to the diameter of the roller; the friction between the roller 4 and the retainer 3 is reduced, and a seal is arranged between the outer ring 1 and the inner ring 2; the retainer 3 comprises two wave-shaped ring pieces 3-1, a gap is reserved between the two ring pieces 3-1 and the two ring pieces are connected by a plurality of supporting rods 3-2 to form a plurality of pockets capable of accommodating rollers, and the pockets and the supporting rods 3-2 are alternated; two sides of the pocket 3-3 are planes and are opposite to two end faces of the roller 4.

The above disclosure is only for the preferred embodiment of the present invention, but not intended to limit itself, and any changes and modifications made by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. A single-row drum-shaped short roller bearing comprises an outer ring and an inner ring; an outer ring raceway is arranged on the inner ring surface of the outer ring, an inner ring raceway is arranged on the outer ring surface of the inner ring, and rollers and a retainer for mounting the rollers are arranged between the outer ring raceway and the inner ring raceway; the roller is drum-shaped, and the drum-shaped curvature of the roller is R; the diameter of the outer ring raceway is De; r is more than or equal to De/2 and less than 2 De.

2. The single row short drum roller bearing as claimed in claim 1, wherein the ends of the rollers are flat and the roller length is equal to or less than the roller diameter.

3. The single row short drum roller bearing as claimed in claim 1, wherein a seal is provided between the outer and inner rings.

4. The single row short drum roller bearing as claimed in claim 1, wherein the cage is a spiked or claw wave cage.

5. The single-row short drum roller bearing as claimed in claim 2, wherein the cage comprises two wave-shaped ring pieces, the two ring pieces are connected by a plurality of support rods with a gap therebetween to form a plurality of pockets capable of accommodating the rollers, and the pockets alternate with the support rods; the two sides of the pocket are planes and are opposite to the two end faces of the roller.