CN213776067U

CN213776067U - Cylindrical one-way bearing

Info

Publication number: CN213776067U
Application number: CN202022423368.2U
Authority: CN
Inventors: 张�杰
Original assignee: Shanghai C&U Group Co Ltd; C&U Co Ltd
Current assignee: Shanghai C&U Group Co Ltd; C&U Co Ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-07-23
Anticipated expiration: 2030-10-27

Abstract

The utility model provides a cylinder one-way bearing, including outer lane, inner circle, roller and holder, outer lane and inner circle between be provided with the raceway that supplies the roller installation, the inner circle including constitute the flange of axial butt with the roller, the outer lane including the annular that is located flange radial extension department, the holder cup joint on the inner circle flange, and the holder including along stretching to the extension in the annular, the extension can and constitute clearance seal cooperation between the annular. Not enough to prior art, the utility model provides a cylinder one-way bearing, it can reduce cost, reduce friction loss.

Description

Cylindrical one-way bearing

Technical Field

The utility model relates to a cylinder one-way bearing.

Background

The cylindrical one-way bearing is a bearing with a roller which is a cylinder and can freely roll in one direction and generate great resistance in the other direction, the bearing is commonly used as a clutch component of textile machinery, automobile industry, household appliances and the like, and generally comprises an outer ring, an inner ring, a roller and a retainer, a roller path for the roller to roll is formed between the outer ring and the inner ring, the retainer is provided with a plurality of pockets for guiding the roller rollers at intervals, a slope and an extension hole are arranged in the pockets towards the other direction, when the bearing rotates in the other direction, the roller rolls into the extension hole along the slope, so that the bearing generates great resistance, sealing rings are arranged on two sides of the roller path, and the sealing rings can seal the interior of the roller. In the environment with good working conditions, the requirement on the sealing performance is low, the arrangement of the sealing ring has limited income, additional parts and assembly are required, the cost is increased, the inner space of the bearing is occupied, and large friction loss is generated.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a cylinder one-way bearing, its inner space, reduce cost, the reduction friction loss that can optimize the bearing.

In order to realize the above-mentioned purpose, the utility model provides a cylinder one-way bearing, including outer lane, inner circle, roller and holder, outer lane and inner circle between be provided with the raceway that supplies the roller installation, the inner circle including constitute the flange of axial butt with the roller, the outer lane including the annular that is located the radial extension department of flange, the holder cup joint on the inner circle flange, and the holder including along stretching to the extension in the annular, the extension can and constitute clearance seal cooperation between the annular.

The technical scheme has the advantages that: through set up on the outer lane and be located flange radial extension department annular to set up the extension on cup jointing the holder on the flange, extend the annular by the extension and constitute sealed cooperation with it in, constitute the clearance of cylinder one-way bearing and seal, need not extra sealing washer that sets up, optimize the space of bearing, can increase the length of roller, and effectual reduce cost and reduce come from the sealing washer and the bearing inner race between the friction loss.

The utility model discloses can further set up to: the cross sections of the annular groove and the extension part are in a step shape with the same lifting direction and arranged axially, and a first gap is formed between the annular groove and the extension part.

Through further setting, all be the echelonment through annular and extension to the first clearance that constitutes can increase the length of first clearance in the unit space.

The utility model discloses can further set up to: the annular is including first slot part and second slot part, first slot part and second slot part between be provided with the slope anchor ring, the slope anchor ring gradually big setting towards the roller direction, so extension can with the cooperation of inclining between the anchor ring.

Through further setting up, set up the slope anchor ring that the orientation roller direction is gradually big between first slot part and second slot part, and the slope anchor ring can with constitute the butt cooperation between the extension, can be spacing to the retainer when keeping away from the direction motion of roller to setting up through self slope reduces area of contact between the two, and the cooperation receives the spacing roller of flange, forms axial spacing to the retainer on the whole.

The utility model discloses can further set up to: the annular groove comprises a side wall extending in the radial direction, and a second gap is formed between the side wall and the extending portion at intervals.

Through further setting, set up the interval and form the second clearance between lateral wall and the extension, promote the sealed intensity in clearance.

Drawings

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

fig. 2 is a perspective view of a cage according to an embodiment of the present invention;

fig. 3 is a partial cross-sectional view of a cage according to an embodiment of the present invention;

fig. 4 is a side view of an embodiment of the invention;

wherein: an outer ring 1; a ring groove 11; the first groove portion 111; a second groove portion 112; an inclined torus 113; a side wall 114; a second groove portion 112; an inner ring 2; a flange 21; a roller 3; a cage 4; an extension 41; the pockets 42; a ramp 43; a raceway 5; a first gap 6; a second gap 7.

Detailed Description

The embodiment of the cylindrical one-way bearing of the utility model is shown in figures 1-4: including outer lane 1, inner circle 2, roller 3 and holder 4, outer lane 1 and inner circle 2 between be provided with the raceway 5 that supplies roller 3 to install, holder 4 on be provided with a plurality of pockets 42 that are used for the interval roller, pocket 42 in be provided with the slope 43 that gradually enlarges towards the outer lane direction, inner circle 2 including with 3 flange 21 that constitute the axial butt of roller, outer lane 1 including being located flange 21 radial extension department's annular 11, holder 4 cup joint on inner circle flange 21, and holder 4 including along extending to the extension 41 in annular 11, extension 41 can and annular 11 between constitute clearance seal cooperation. In the present embodiment, the extension portion 41 is provided only at one side in the axial direction of the cage, and in the case where there is a sealing requirement only at one side of the bearing, it is of course possible to provide the extension portion 41 at both sides of the cage. The cross sections of the ring groove 11 and the extension portion 41 are in a step shape with the same lifting direction and arranged axially, and a first gap 6 is formed between the ring groove 11 and the extension portion 41. The ring groove 11 includes a first groove portion 111 and a second groove portion 112, an inclined ring surface 113 is disposed between the first groove portion 111 and the second groove portion 112, and the inclined ring surface 113 is gradually enlarged toward the roller 3, so that the extension portion 41 can be in contact engagement with the inclined ring surface 113. The annular groove 11 includes a radially extending sidewall 114, and a second gap 7 is formed between the sidewall 114 and the extending portion 41.

The above examples are only one of the preferred embodiments of the present invention, and the general changes and substitutions performed by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.

Claims

1. The utility model provides a cylinder one-way bearing, is including outer lane, inner circle, roller and holder, outer lane and inner circle between be provided with the raceway that supplies the roller installation, its characterized in that: the inner circle including constitute the flange of axial butt with the roller, the outer lane including the annular that is located the radial extension department of flange, the holder cup joint on the inner circle flange, and the holder including along stretching the extension to the annular, the extension can and the annular between constitute clearance seal cooperation.

2. Cylindrical one-way bearing according to claim 1, characterized in that: the cross sections of the annular groove and the extension part are in a step shape with the same lifting direction and arranged axially, and a first gap is formed between the annular groove and the extension part.

3. Cylindrical one-way bearing according to claim 2, characterized in that: the annular is including first slot part and second slot part, first slot part and second slot part between be provided with the slope anchor ring, the slope anchor ring gradually big setting towards the roller direction, so extension can with the cooperation of inclining between the anchor ring.

4. Cylindrical one-way bearing according to claim 2 or 3, characterized in that: the annular groove comprises a side wall extending in the radial direction, and a second gap is formed between the side wall and the extending portion at intervals.