CN2560787Y

CN2560787Y - Free-wheeling clutch for vehicle

Info

Publication number: CN2560787Y
Application number: CN 02263284
Authority: CN
Inventors: 刘魁; 周伟刚
Original assignee: XINSHIDA BEARING MANUFACTURING Co Ltd WUJIN CITY
Current assignee: XINSHIDA BEARING MANUFACTURING Co Ltd WUJIN CITY
Priority date: 2002-07-20
Filing date: 2002-07-20
Publication date: 2003-07-16
Anticipated expiration: 2012-07-20

Abstract

An overrunning clutch used for a car comprises wedge pieces (4), a retainer (2) and an annular spring (3); wherein, the retainer (2) is in odd number and is provided with location holes (2-1), the quantity of which is equal to the quantity of the wedge pieces (4); the wedge piece (4) is installed in the location holes (2-1), through grooves (4-1) are opened in the middle of the wedge piece (4), the annular spring (3) is pulled through the through groove (4-1) of each wedge piece (4), and the wedge piece (4), the retainer (2) and the spring (3) are mutually connected into one piece through the spring (3). The utility model enables the wedge piece to have great adjusting space, makes the wedge piece not to contact the shaft when the clutch is overrunning, produces low noise, and has small wearing of the wedge piece and long service life. In addition, the utility model also has the advantages of simple structure, material saving, simple technique, low manufacturing cost and so on.

Description

Automobile-used free wheel device

Technical field

The utility model relates to the free wheel device technology, is specifically related to the automobile-used free wheel device of a kind of wedge block type.

Background technique

Wedge type over running clutch is with its reliability height that has, usability is good, long service life, bearing torque is big, advantages such as boundary dimension compactness, adopted by relevant industries, as the disclosed a kind of free wheel device with the shared retainer of voussoir of Chinese patent CN2472001Y, it is by voussoir, spring, interior ring retainer and outer shroud retainer are formed, though it has some advantages of wedge block type clutch, but still existing the structure relative complex, processing technology is loaded down with trivial details, installation and maintenance inconvenience, surmount, retardation angle is bigger during the locking conversion, voussoir is adjusted shortcomings such as the space is little, easy to wear, and noise is big.

Summary of the invention

The purpose of this utility model provides a kind of voussoir and adjusts that the space is big, wearing and tearing are little, the automobile-used free wheel device that noise is low.

The technological scheme that realizes above-mentioned purpose is: a kind of automobile-used free wheel device, comprise voussoir, retainer and circle shape spring, retainer only adopts only single, has positioning hole on the retainer with the voussoir equivalent amount, voussoir is installed in the positioning hole, has groove in the middle of the voussoir, circle shape spring passes the groove of every voussoir, and makes by spring that voussoir, retainer and spring are interconnected to be integral.

After adopting technique scheme, owing to only adopt single retainer, it is big to make voussoir adjust the space, can make voussoir contactless with axle when clutch surmounts, and noise is little, little, the long service life of voussoir wearing and tearing.Owing to adopted circle shape spring, not only simple in structure, fatigue strength is big, long service life, and control voussoir retardation angle in surmounting, lock conversion effectively and arrive minimum, make clutch surmount, lock steadily, moment of torsion is sustained under the operating mode carrying.In addition, owing to only adopt single retainer, also can save material, reduce manufacture cost, and make processing technology simple.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is the structural representation of retainer among Fig. 1;

Fig. 4 is the B-B sectional view of Fig. 3;

Fig. 5 is the structure enlarged diagram of voussoir among Fig. 1;

Fig. 6 is the C-C sectional view of Fig. 5.

Embodiment

Below in conjunction with drawings and Examples the utility model is described in further detail.

Shown in Fig. 1～6, a kind of automobile-used free wheel device, comprise voussoir 4, retainer 2 and circle shape spring 3, retainer 2 only adopts only single, have the positioning hole 2-1 with voussoir 4 equivalent amounts on the retainer 2, voussoir 4 is installed among the positioning hole 2-1, has groove 4-1 in the middle of the voussoir 4, circle shape spring 3 passes the groove 4-1 of every voussoir 4, and makes voussoir 4, retainer 2 and spring 3 interconnected being integral by spring 3.Shown in Fig. 1,6, voussoir 4 be shaped as abnormity, the quantity of voussoir 4 adopts seven.

Retainer 2 adopts the low carbon steel drawing, makes retainer 2 have elasticity, and retainer 2 is made ellipse with the maximum outside diameter that outer ring 1 cooperates, and is convenient to assemble outer ring 1, and retainer 2 and outer ring 1 nothing are relatively rotated.

Claims

1, a kind of automobile-used free wheel device, comprise voussoir (4), retainer (2) and circle shape spring (3), it is characterized in that: retainer (2) only adopts only single, has positioning hole (2-1) on the retainer (2) with voussoir (4) equivalent amount, voussoir (4) is installed in the positioning hole (2-1), have groove (4-1) in the middle of the voussoir (4), circle shape spring (3) passes the groove (4-1) of every voussoir (4), and makes voussoir (4), retainer (2) and interconnected being integral of spring (3) by spring (3).

2, automobile-used free wheel device according to claim 1 is characterized in that: voussoir (4) be shaped as abnormity.

3, automobile-used free wheel device according to claim 1 and 2 is characterized in that: the quantity of voussoir (4) is seven.

4, automobile-used free wheel device according to claim 1 and 2 is characterized in that: retainer (2) is by the low carbon steel plate drawing, the maximum outside diameter ovalize that it cooperates with the outer ring.