CN2709209Y

CN2709209Y - Motorcycle high efficiency buffer hub device

Info

Publication number: CN2709209Y
Application number: CN 200420065004
Authority: CN
Inventors: 周振国
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-06-18
Filing date: 2004-06-18
Publication date: 2005-07-13
Anticipated expiration: 2014-06-18

Abstract

The utility model relates to a high-efficiency buffer wheel hub device of a motorcycle, which comprises a buffer body, buffer rubber and a wheel hub, wherein two or more than two rectangular short ribs which extend to the circle center around an inner circle are uniformly distributed at one side of an inner ring of the wheel hub; the buffer rubber is circular; the center of the buffer rubber is provided with a circular hole; a group of oblong open slots of the wheel hub and a group of open slots of the buffer body are arranged around the buffer rubber, and the oblong open slots of the wheel hub are uniformly distributed at intervals; every group has two or more than two open slots; the open slots of the wheel hub are sheathed with the short ribs correspondingly, and the buffer rubber is inserted in the inner circle of the wheel hub; the open slots of the buffer rubber correspond to the two or more than two rectangular convex seats of the buffer rubber; the buffer rubber is in a concave shape; the side end face of an opening extends out of the two or more than two rectangular convex seats; the convex seats are sheathed in the open slots of the buffer body of the buffer rubber; the other side of the buffer rubber is provided with four screw holes for connecting a driving sprocket. Compared with four rubber ring posts in the prior art, the buffer rubber of the device has large cross section, high elasticity and high buffer flexibility; besides, the device is difficult to wear and has long service life and convenient replacement and maintenance.

Description

The efficient buffering wheel hub device of motor bike

Technical field:

The utility model relates to a kind of hub of motorcycle, particularly relates to the efficient buffering wheel hub device of a kind of motor bike.

Background technology:

The buffer structure of existing C M125cc, 150cc type hub of motorcycle is about the cylindrical cushion compound of 25～30mm in the buffer body outside the wheel hub center shaft four diameters being set evenly, there is following shortcoming in the wheel hub of this structure: 1. cushion compound is because the cross-sectional area of colloid is little, make that the buffer action of wheel is little, buffering effect is poor; 2. to the requirements for quality height of power-transfer clutch, cost is improved; Otherwise the driver in driving power-transfer clutch from be separated to-half point produces bad clutch effect from-closed this process; 3. little, the easy wearing and tearing of cushion compound volume make the service life of cushion compound short, often will change, and have increased user's trouble; 4. because this kind cushion compound is that cylindrical cushion compound tightly is enclosed within the cylindrical metal sleeve, makes and change very difficulty, cause the trouble of maintenance person.

Summary of the invention:

The purpose of this utility model is to overcome above-mentioned defective, and a kind of good buffer effect is provided, maintenance easy accessibility, the efficient buffering wheel hub device of the motor bike of long service life.

Scheme of the present utility model is: the utility model structure comprises buffer body, cushion compound, wheel hub, uniform two or more the short muscle of oblong that is provided with that circle in the ring extends to the circle center of annulus one side in the wheel hub; Have a cushion compound to be shaped as circle, there is circular hole in central authorities, and uniformly at intervals rectangular one group of hub opening groove and pool of buffer body open slot are arranged all around, and every group has two or more open slots; The hub opening groove is corresponding with short muscle, and makes cushion compound be set in the interior circle of wheel hub hub opening groove and short muscle fit; The buffer body open slot is corresponding to the protruding seat of two or more oblongs of buffer body, buffer body is concave shape, opening side end face stretches out the two or more protruding seats of oblong, protruding cover for seat is combined in the buffer body open slot of cushion compound, and the buffer body opposite side has four screws for being connected with drive sprocket.

Advantage of the present utility model is: glue annulated column cross section is big, elasticity is strong more than four of prior art in the cushion compound cross section, and the flexibility of buffering is also much bigger, and not easy to wear, the life-span is long, repair and replacement are also convenient.

Description of drawings:

Fig. 1 is the utility model structural representation.

Fig. 2 is the protruding seat of a buffer body side direction view.

Fig. 3 is that the short muscle structure of the interior annulus of wheel hub is to view.

Fig. 4 is the cushion compound front view.

Fig. 5 is prior art four annulus rod structure scheme drawings.

Label declaration: 1 drive sprocket, 2 buffer bodies, 3 cushion compounds, 31 hub opening grooves, 32 buffer body open slots, 4 wheel hubs, 5 short muscle, 6 interior circles, 7 protruding seats.

The specific embodiment:

Shown in Fig. 1-5: the utility model structure comprises buffer body (2), cushion compound (3), wheel hub (4), and the uniform interior circle of ring that is provided with of interior annulus one side of wheel hub (4) is to the short muscle (5) of four oblong of circle center extension; As shown in Figure 4, have a cushion compound (3) to be shaped as circle, there is circular hole in central authorities, uniformly at intervals rectangular one group of hub opening groove (31) and pool of buffer body open slot (32) are arranged, every group of open slot that has four all around; Hub opening groove (31) is corresponding with short muscle (5), and cushion compound (3) is set in the interior circle of wheel hub (4) (6), hub opening groove (31) and short muscle (5) fit; Buffer body open slot (32) is corresponding to the protruding seat of four oblong of buffer body (2) (7), buffer body (2) is concave shape, opening side end face stretches out the protruding seat (7) of four of oblongs, protruding seat (7) is linked in the buffer body open slot 32 of cushion compound (3), and buffer body (2) opposite side has four screws for being connected with drive sprocket (1).

Have four holes to be connected with drive sprocket (1) on the buffer body (2) by bolt, buffer body (2) central circular hole buy car in installments the axle pass.

When drive sprocket (1) drives motor vehicle wheel, (be power-transfer clutch from be separated to-half point is from-closed this process) in a flash that makes that the speed of motor vehicle wheel changes, four then wheel hub (4) rotations relatively of square protruding seat of buffer body (2) open side, cushion compound (3) is then oppressed on the protruding seat of oblong limit, the cushion compound (3) between the short muscle of circle (6) (5) is by compression to the wheel hub (4) of adjacent 45 to make the protruding seat of four oblongs, because cushion compound (3) volume between this fan section is bigger, then flexible good, buffer body (2) is relative with wheel hub (4), and to rotate the corner stroke then big, good buffer effect just, thereby covered power-transfer clutch at half point during, the fugitiveness that produces because of the friction between the clutch segment from state.

When changing rubber or maintenance, because of pulling down buffer body (2), can wholely take out cushion compound (3), so simple and easy, convenient.

Claims

1, the efficient buffering wheel hub device of motor bike comprises buffer body (2), wheel hub (4), it is characterized in that: two or more the short muscle (5) of oblong that interior annulus one side of wheel hub (4) is uniform to be provided with that circle in the ring extends to the circle center; Have a cushion compound (3) to be shaped as circle, there is circular hole in central authorities, and uniformly at intervals rectangular one group of hub opening groove (31) and pool of buffer body open slot (32) are arranged all around, and every group has two or more open slots; Hub opening groove (31) is corresponding with short muscle (5), and cushion compound (3) is set in the interior circle of wheel hub (6), hub opening groove (31) and short muscle (5) fit; Buffer body open slot (32) is corresponding to the protruding seats of two or more oblongs of buffer body (2) (7), buffer body (2) is concave shape, opening side end face stretches out the two or more protruding seats of oblong (7), protruding seat (7) is linked in the buffer body open slot (32) of cushion compound (3), and buffer body (2) opposite side has four screws for being connected with drive sprocket.