CN215171680U

CN215171680U - Stable high-bearing-density one-way clutch

Info

Publication number: CN215171680U
Application number: CN202121659782.1U
Authority: CN
Inventors: 许航宝; 姜宗成
Original assignee: Jiangsu Nanfang Bearing Co Ltd
Current assignee: Jiangsu Nanfang Precision Industry Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2021-12-14
Anticipated expiration: 2031-07-20

Abstract

The utility model relates to the technical field of clutches, in particular to a stable one-way clutch with high bearing density, which comprises an outer ring, an inner ring and a retainer positioned between the outer ring and the inner ring, wherein a plurality of cavities are arranged on the retainer at intervals, torque transmission rollers and spring pieces are arranged in the cavities, the torque transmission rollers are positioned in corresponding cam grooves, and the spring pieces are used for pushing the torque transmission rollers to the small end groove walls of the cam grooves; the inner side of the outer peripheral face of the retainer is provided with a plurality of first bosses at intervals, the outer side of the outer peripheral face of the retainer is provided with a plurality of second bosses at intervals, the inner side faces of the second bosses are in contact with the outer side face of the outer ring, the first bosses can play a role in circumferential fixation, and the second bosses can play a role in axial fixation, so that the outer ring and the storage frame are prevented from rotating relatively in the transmission process of the one-way clutch, and the one-way clutch is made to fail.

Description

Stable high-bearing-density one-way clutch

Technical Field

The utility model belongs to the technical field of the clutch technique and specifically relates to a stable form high bearing density one way clutch is related to.

Background

The one-way clutch is a basic member which appears with the development of mechatronic products, and is an important part for power transmission and separation functions between a prime mover and a working machine or between a driving shaft and a driven shaft inside the machine. It is a device with self-clutch function by using speed change of driving and driven parts or change of rotation direction.

The prior roller type clutch is lack of a fixing function, so that the outer ring of the clutch and the retainer are easy to relatively rotate when in use, and the transmission capability of the one-way clutch is poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to overcome the problems that a fixed structure is lacked between an outer ring and a retainer in the prior art, relative rotation is easy to occur, and the one-way force and the transmission capability of the clutch are poor, a stable one-way clutch with high bearing density is provided.

The utility model provides a technical scheme that its technical problem adopted is: a stable one-way clutch with high bearing density comprises an outer ring, an inner ring and a retainer positioned between the outer ring and the inner ring, wherein a plurality of cavities are formed in the retainer at intervals in the circumferential direction of the retainer, torque transmission rollers and spring pieces are arranged in the cavities, a plurality of cam grooves are formed in the inner peripheral wall of the outer ring at intervals in the circumferential direction of the outer ring, the cam grooves correspond to the torque transmission rollers one by one, the torque transmission rollers are positioned in the corresponding cam grooves, and the spring pieces are used for pushing the torque transmission rollers to the small end groove walls of the cam grooves;

the inboard interval protrusion of holder outer peripheral face has a plurality of first bosss with cam groove assorted along its circumferencial direction, the holder outer peripheral face outside has a plurality of second bosss along its circumferencial direction interval protrusion, first boss is located its cam groove that corresponds, second boss medial surface and outer lane lateral surface contact, through set up on the holder with the first boss of cam groove assorted, can play the fixed effect of circumference, through be provided with on the holder with the second boss of outer lane contact, can play the effect of axial fixity to prevent at one-way clutch in transmission process, outer lane and holder emergence relative rotation, make one-way clutch inefficacy.

In order to solve first boss and second boss with partial die cavity totally enclosed, the unable diffusion department of fluid leads to impurity to accumulate in the die cavity, makes moment of torsion transmission roller wearing and tearing, has reduced one way clutch's life's problem, further includes first boss and second boss dislocation arrangement, second boss medial surface and outer lane lateral surface contact, first boss and second boss one-to-one to each die cavity on the assurance holder can have a fluid diffusion outlet at least, guarantees that the interior impurity of die cavity can follow fluid diffusion outflow, reduces the wearing and tearing of moment of torsion transmission roller, thereby improves its life.

In order to solve the problem of the stability of the retainer after installation, the retainer further comprises an arc-shaped boss which is formed by the first boss and the second boss, and the diameter of the outer peripheral surface corresponding to the second boss is larger than the diameter of the inner peripheral surface corresponding to the outer ring, so that the second boss cannot penetrate through the cam groove, and the axial fixation is realized.

The utility model has the advantages that: the utility model provides a pair of stable form high bearing density one way clutch through set up on the retainer with the first boss of cam groove assorted, can play the fixed effect of circumference, through be provided with on the retainer with the second boss of outer lane contact, can play the effect of axial fixity to prevent that at one way clutch in transmission process, relative rotation takes place for outer lane and retainer, make one way clutch inefficacy.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic diagram of the explosion structure of the present invention;

fig. 3 is a schematic structural view of the outer side surface of the present invention.

In the figure: 1. the spring comprises an outer ring, 1-1 parts of a cam groove, 2 parts of an inner ring, 3 parts of a retainer, 3-1 parts of a cavity, 3-2 parts of a first boss, 3-3 parts of a second boss, 4 parts of a moment transmission roller, 5 parts of a spring piece.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

Fig. 1 is a schematic structural diagram of the present invention, a stable one-way clutch with high bearing density, which includes an outer ring 1, an inner ring 2 and a holder 3 located between the outer ring 1 and the inner ring 2, as shown in fig. 2, the holder 3 has a plurality of cavities 3-1 spaced along its circumferential direction, the cavities 3-1 are all provided with torque transmission rollers 4 and spring pieces 5, the inner circumferential wall of the outer ring 1 has a plurality of cam grooves 1-1 spaced along its circumferential direction, the cam grooves 1-1 are in one-to-one correspondence with the torque transmission rollers 4, the torque transmission rollers 4 are located in the corresponding cam grooves 1-1, and the spring pieces 5 are used for pushing the torque transmission rollers 4 to the small-end groove walls of the cam grooves 1-1;

the inner side of the outer peripheral surface of the retainer 3 is provided with a plurality of first bosses 3-2 matched with the cam grooves 1-1 at intervals along the circumferential direction, the outer side of the outer peripheral surface of the retainer 3 is provided with a plurality of second bosses 3-3 at intervals along the circumferential direction, as shown in figure 3, the first bosses 3-2 are positioned in the cam grooves 1-1 corresponding to the first bosses 3-2, the inner side surfaces of the second bosses 3-3 are contacted with the outer side surface of the outer ring 1, the first bosses 3-2 and the second bosses 3-3 are staggered mutually, the retainer 3 is provided with the first bosses 3-2 matched with the cam grooves 1-1, the circumferential fixing effect can be achieved, the second bosses 3-3 contacted with the outer ring 1 are arranged on the retainer 3, the axial fixing effect can be achieved, and therefore, the one-way clutch is prevented from being in the transmission process, the outer ring 1 and the storage rack 3 rotate relatively, so that the one-way clutch fails.

As shown in fig. 2, the first boss 3-2 and the second boss 3-3 are arranged in a staggered manner, so that each cavity 3-1 of the retainer 3 can have at least one oil diffusion outlet, impurities in the cavity 3-1 can flow out along with oil diffusion, abrasion of the torque transmission roller 4 is reduced, and the service life of the torque transmission roller is prolonged.

As shown in fig. 2, the first boss 3-2 and the second boss 3-3 are arc-shaped bosses, and the diameter of the outer peripheral surface corresponding to the second boss 3-3 is larger than the inner peripheral surface of the outer ring 1, so that the second boss 3-3 cannot pass through the cam groove to be axially fixed.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A stable one-way clutch with high bearing density comprises an outer ring (1), an inner ring (2) and a retainer (3) positioned between the outer ring (1) and the inner ring (2), it is characterized in that the retainer (3) is provided with a plurality of cavities (3-1) at intervals along the circumferential direction, the cavity (3-1) is internally provided with a torque transmission roller (4) and a spring piece (5), a plurality of cam grooves (1-1) are arranged on the inner peripheral wall of the outer ring (1) at intervals along the circumferential direction, the cam grooves (1-1) and the torque transmission rollers (4) are in one-to-one correspondence, the torque transmission rollers (4) are positioned in the corresponding cam grooves (1-1), the spring piece (5) is used for pushing the torque transmission roller (4) to the small end groove wall of the cam groove (1-1);

the inner side of the outer peripheral surface of the retainer (3) is provided with a plurality of first bosses (3-2) matched with the cam grooves (1-1) at intervals in the circumferential direction, the outer side of the outer peripheral surface of the retainer (3) is provided with a plurality of second bosses (3-3) at intervals in the circumferential direction, the first bosses (3-2) are positioned in the corresponding cam grooves (1-1), and the inner side surfaces of the second bosses (3-3) are in contact with the outer side surfaces of the outer ring (1).

2. A stable, high load density one-way clutch according to claim 1, wherein: the first bosses (3-2) and the second bosses (3-3) are arranged in a staggered mode, and the first bosses (3-2) correspond to the second bosses (3-3) one by one.

3. A stable, high load density one-way clutch according to claim 1, wherein: the first boss (3-2) and the second boss (3-3) are arc-shaped bosses, and the diameter of the outer peripheral surface corresponding to the second boss (3-3) is larger than that of the inner peripheral surface of the outer ring (1).