CN2600643Y

CN2600643Y - One-direction bearing

Info

Publication number: CN2600643Y
Application number: CN 03223924
Authority: CN
Inventors: 彭焕耀
Original assignee: YINUOFEI HEALTH SPORTS APPTS (SHENZHEN) CO Ltd
Current assignee: YINUOFEI HEALTH SPORTS APPTS (SHENZHEN) CO Ltd
Priority date: 2003-02-28
Filing date: 2003-02-28
Publication date: 2004-01-21
Anticipated expiration: 2013-02-28

Abstract

The utility model discloses a simplex bearing. A plurality of rolling balls (2) with the same column shape is provided inside a shell (1). The column shape rolling balls (2) are positioned on the arc part of the groove in the shell (1). Each column shape ball (3) has a spring sheet (3), which is positioned on the other side of the inner gutter (1). Another side of the sheet (3) is clung closely to the groove of the shell (1), while another side is clung closely to the column-shaped rolling ball (2), which is pressed tight against the arc surface of the inner gutter in the shell (1). The shell (1) is covered with a cap (4) that matches with it, which solves the problems of skidding, stepping idly, vulnerableness and functioning noise in the prior simplex bearing. Meanwhile, the utility model has the advantages of skidding prevention, promptness, invulnerableness and lower functioning noise and wide application, which is applicable for the bicycle and the medical appliance extensively and various sport equipment.

Description

Unilateral bearing

Technical field the utility model relates to a kind of unilateral bearing, more particularly, relates to a kind of unilateral bearing with cylindricality ball.

Background technique in the prior art, unilateral bearing is the common components in the various transmission systems, is used for the effect of unidirectional delivery power, is widely used in bicycle, medical equipment and other sports equipment.But there is following shortcoming in existing unilateral bearing: the one, easily skid, and stressedly lose single effect when big; The 2nd, easily step on sky, just interlock is stressed behind the delay certain hour; The 3rd, unidirectional fragile; The 4th, the operation noise is big, has therefore seriously limited unidirectional using scope, has restricted unidirectional effect.

The summary of the invention the purpose of this utility model be to provide a kind of non-slip, can not postpone, not fragile and operation noise little unilateral bearing.

In order to achieve the above object, the utility model provides following technological scheme: design a kind of unilateral bearing, comprise shell (1), several identical cylindricality balls (2) are housed in the shell of described unilateral bearing (1), cylindricality ball (2) is positioned at shell (1) internal channel arc position, each cylindricality ball (2) has a shell fragment (3), shell fragment (3) is positioned at shell (1) internal channel opposite side, shell fragment (3) one sides are close to shell (1) groove, opposite side is close to cylindricality ball (2) and cylindricality ball (2) is pushed down the arcuate surface that is adjacent to shell (1) internal channel, and shell (1) is stamped the lid (4) that adapts with it.

Working principle of the present utility model: when the needs single effect, its axle center adds that by two plain bearings a five-way pipe supports earlier, mix this unilateral bearing again, a plain bearing is respectively joined at the two ends of this unilateral bearing again, the outer driving disk of unilateral bearing can be only rotates with the axle center when clockwise in the axle center like this, and axle center when counter-rotating driving disk does not rotate, thereby realizes the one-way rotation function.

The utility model technological scheme preferably is: 5～11 identical cylindricality balls (2) are housed in the shell of unilateral bearing (1), and the applicability of this class unilateral bearing is more extensive.

Compared with prior art, the utlity model has advantages such as simple in structure, that intensity is high, ball is not fragile, the elastic force effect of shell fragment is strong, thus non-slip, do not postpone, not fragile, operation noise little and applied range.

Be drawing explanation of the present utility model below the description of drawings:

Fig. 1 is design of part figure of the present utility model;

Fig. 2 is a structural representation of the present utility model;

Fig. 3 is application principle figure of the present utility model.

Among the figure, the 1st, the shell of unilateral bearing, the 2nd, cylindricality ball, the 3rd, shell fragment, the 4th, lid, the 5th, axle center, the 6th, plain bearing, the 7th, five-way pipe, the 8th, driving disk, the 9th, plain bearing, the 10th, unilateral bearing.

By specific embodiment the utility model is carried out more detailed description below the embodiment:

With reference to Fig. 1, Fig. 2 and Fig. 3, several identical cylindricality balls (2) are housed in the shell of unilateral bearing (1), cylindricality ball (2) is positioned at shell (1) internal channel arc position, each cylindricality ball (2) has a shell fragment (3), and 11 identical cylindricality balls (2) are housed in the shell of unilateral bearing (1).

With reference to Fig. 3, shell fragment (3) is positioned at shell (1) internal channel opposite side, shell fragment (3) one sides are close to shell (1) groove, and opposite side is close to cylindricality ball (2) and cylindricality ball (2) is pushed down the arcuate surface that is adjacent to shell (1) internal channel, and shell (1) is stamped the lid (4) that adapts with it.(5) and driving disk (8) be not when moving in the axle center, groove arcuate surface in the shell (1) of unilateral bearing (10) closely cooperates, and cylindricality ball (2) is close to surface, axle center (5) simultaneously, when axle center (5) when being rotated in the forward, produce friction between itself and cylindricality ball (2), cylindricality ball (2) then with unilateral bearing (10) in the groove arcuate surface form very big frictional force, the cylindricality ball (2) and the shell (1) of unilateral bearing (10) are adjacent to, cylindricality ball (2) and axle center (5) are adjacent to, the shell (1) of unilateral bearing (10) is connected as a single entity with driving disk (8), thus, the rotation in axle center (5) is by cylindricality ball (2), unilateral bearing shell (1) drives driving disk (8) and rotates, and unilateral bearing (10) plays the effect of transmission power; When reverse axle center (5), itself and cylindricality ball (2) rub, and press to shell fragment (3) and the interior groove arcuate surface of disengagement shell (1) down, the power that rotate axle center (5) can not be delivered on the shell (1), also just can not drive driving disk (8) and rotate, axle center (5) only just drive driving disk (8) rotation by unilateral bearing (10) when single direction is promptly just changeing as a result.

Claims

1, a kind of unilateral bearing, comprise shell (1), it is characterized in that: several identical cylindricality balls (2) are housed in the shell of unilateral bearing (1), cylindricality ball (2) is positioned at shell (1) internal channel arc position, each cylindricality ball (2) has a shell fragment (3), shell fragment (3) is positioned at shell (1) internal channel opposite side, shell fragment (3) one sides are close to shell (1) groove, opposite side is close to cylindricality ball (2) and cylindricality ball (2) is pushed down the arcuate surface that is adjacent to shell (1) internal channel, and shell (1) is stamped the lid (4) that adapts with it.

2, unilateral bearing according to claim 1 is characterized in that: 5～11 identical cylindricality balls (2) are housed in the shell of unilateral bearing (1).