CN202251543U

CN202251543U - One-way overrunning clutch

Info

Publication number: CN202251543U
Application number: CN2011203496532U
Authority: CN
Inventors: 娄成林; 王广胜
Original assignee: HENAN SOYOU GREEN FOOD CO Ltd
Current assignee: HENAN SOYOU GREEN FOOD CO Ltd
Priority date: 2011-09-19
Filing date: 2011-09-19
Publication date: 2012-05-30
Anticipated expiration: 2021-09-19

Abstract

The utility model discloses a one-way overrunning clutch which comprises a driving plate and a driven plate, wherein the driven plate and the outer ring surface of the driving plate are sleeved with each other with a clearance formed therebetween; a plurality of spherical concave surfaces or cylindrical concave surfaces are formed on the inner ring surface of the driven plate in the circumferential direction; at least one pair of blind holes is formed on the outer ring surface of the driving plate in the radial direction; a spring and a wedge block are arranged in each blind hole respectively; and a plurality of spherical balls or cylindrical rollers are mounted in the clearance between the driving plate and the driven plate. As the spherical balls or the cylindrical rollers matched with the spherical concave surfaces or the cylindrical concave surfaces on the inner ring surface of the driven plate are arranged in the clearance between the driving plate and the driven plate, and the springs and the wedge blocks are arranged in the blind holes of the driving plate, the one-way overrunning clutch has the advantages that the driving plate transmits torque to the driven plate through the spherical balls or the cylindrical rollers, which greatly improves the transmission force of the torque; moreover, the friction force is greatly reduced when the driven plate slides to overrun the driving plate.

Description

Mono-directional overrun clutch

Technical field

The utility model relates to free wheel device, especially relates to mono-directional overrun clutch.

Background technique

Be used for the mono-directional overrun clutch (being commonly called as flywheel) on bicycle, electric bicycle, the electro-tricycle at present; The very heavy many of moment of torsion are formed by the steel wire system of holding between unidirectional delivery master, the driven wheel; The driven wheel inner ring surface is the flank of tooth; Come transmitting torque through very heavy and the flank of tooth in the rotary course, the deficiency of its existence is that the moment of torsion that transmits is less, be prone to take place jack in the working procedure does not get up and causes skidding between main, the driven wheel, and is difficult for combine and assemble and maintenance.

Summary of the invention

The utility model purpose is to provide the mono-directional overrun clutch that a kind of intensity is high, transmitting torque is big.

For realizing above-mentioned purpose, the utility model can be taked following technical proposals:

The described mono-directional overrun clutch of the utility model comprises driving disc, and the gap is sleeved on the driven disc of said driving disc outer ring surface, and said driven disc inner ring surface is made up of a plurality of spherical concave surface or the cylinder concave surface offered along circumferentially equal portion; The outer ring surface of said driving disc radially symmetry offer at least one pair of blind hole, in each blind hole, be respectively arranged with spring and voussoir; A plurality of spherical ball or cylindrical rollers are installed in the gap between driving disc and driven disc.

Said driven disc is chain drum, fluted disc or belt pulley.

The utility model advantage is to be arranged between driving disc and the driven disc in the gap, adapt with spherical concave surface of driven disc inner ring surface or cylinder concave surface spherical ball or cylindrical rollers, and be arranged on spring and the voussoir in the driving disc blind hole; Like this, driving disc passes to driven disc through spherical ball or cylindrical rollers with moment of torsion, has improved the transmission power of moment of torsion greatly, simultaneously, surmounts driving disc at driven disc and slides that frictional force greatly reduces in the process.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the I portion enlarged diagram of Fig. 1.

Embodiment

Like Fig. 1, shown in 2, the described mono-directional overrun clutch of the utility model comprises driving disc 1, and the gap is sleeved on the driven disc 2 of said driving disc 1 outer ring surface, and said driven disc 2 inner ring surfaces are made up of a plurality of spherical concave surface of offering along circumferentially equal portion; The outer ring surface of said driving disc 1 radially symmetry offer two pairs of blind holes 3, in each blind hole 3, be respectively arranged with spring 4 and voussoir 5; Arrange in the gap between driving disc 1 and driven disc 2 a plurality of spherical ball 6 are installed.

Claims

1. mono-directional overrun clutch; Comprise driving disc (1); The gap is sleeved on the driven disc (2) of said driving disc (1) outer ring surface, it is characterized in that: said driven disc (2) inner ring surface is made up of a plurality of spherical concave surface or the cylinder concave surface offered along circumferentially equal portion; The outer ring surface of said driving disc (1) radially symmetry offer at least one pair of blind hole (3), in each blind hole (3), be respectively arranged with spring (4) and voussoir (5); In the gap between driving disc (1) and driven disc (2) a plurality of spherical ball (6) or cylindrical rollers are installed.

2. mono-directional overrun clutch according to claim 1 is characterized in that: said driven disc (2) is chain drum, fluted disc or belt pulley.