CN2597743Y

CN2597743Y - Clutch driving gear for motorcycle

Info

Publication number: CN2597743Y
Application number: CNU022075070U
Authority: CN
Inventors: 吕奋飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-03-03
Filing date: 2002-03-03
Publication date: 2004-01-07
Anticipated expiration: 2012-03-03

Abstract

The utility model relates to an engaging and disengaging transmission gear for motorbikes. The utility model comprises an inner circle (6) and an outer circle (2), the outer margin of the outer circle is a tooth profile (1), the inner margin of the inner circle is a mounting hole (5) and is provided with a wedge slot (4), and a ball bearing (3) is positioned between the wedge slot and the outer margin of the inner circle. As to a vehicle installed with the utility model, once the rotating speed of a driving shaft is slower than that of a passive shaft when the vehicle decelerates, the ball bearing in the wedge slot rolls towards a wider place and separates from the wedge slot in time, and the vehicle is in a free sliding status, thereby avoiding the passive racing of engine and maximizing the sliding speed and distance. The utility model has the advantages of prolonging service life of engine and lowering fuel consumption.

Description

Motorcycle clutch driving gear

[technical field] the utility model belongs to the clutch that transmits mechanical motion, particularly relates to a kind of motorcycle clutch driving gear.

[background technique] pedal-type stepless speed-change motorcycle is the new model that grew up in recent years, particularly in the area, cities and towns, because of it is driven steadily, handiness is subjected to everybody welcome deeply.But the outstanding shortcoming that this vehicle exists is that fuel consumption is bigger.This mainly is by the decision of the working principle of its gear and clutch.What this vehicle generally adopted is centrifugal friction clutch, be in the friction of installing on the driving shaft piece after driving shaft reaches certain rotating speed, because of action of centrifugal force is opened, with the outer loop contacts of friction that is installed on the driven shaft, by both frictional force realization driving shafts and the transmission between the driven shaft.After rotating speed is reduced to a certain degree, in the friction piece because of being subjected to the effect toe-in of spring force, thereby with the disengaging of friction outer shroud.The motorcycle that uses this kind clutch in the process of moving, after throttle is unclamped, owing to still keeping certain speed to cause clutch in time not break away from, the sliding of motorcycle drives motor and driving mechanism turns round together, thereby increased resistance, the speed that slides all is a greater impact with distance, does not play due energy-saving effect.

The deficiency that [summary of the invention] can not in time make driving shaft and driven shaft be separated for the centrifugal friction clutch that overcomes existing stepless speed-change motorcycle, the utility model provides a kind of motorcycle clutch driving gear, realize the timely disengaging of driving shaft and driven shaft, guarantee the sliding speed and the distance of motorcycle to the full extent, thereby reach the purpose that reduces fuel consumption.

The utility model outer rim is flank profil (1), and inner edge is mounting hole (5), be characterised in that, and its whole inner ring (6) and outer ring (2) divided, the outer rim of outer ring is a flank profil, the inner edge of inner ring is a mounting hole; The inner edge of outer ring has wedge slot (4), and the ball (3) of cylinder type or ball-shaped is set between the outer rim of this wedge slot and inner ring.

Because the utility model divides outer ring and inner ring two-part, and is provided with ball in the wedge groove between two-part, when ball was positioned at the broad place of wedge slot, separated with inner ring the outer ring; When ball was positioned at the narrower place of wedge slot, outer ring and inner ring were combinations; As seen transmission between the two is unidirectional.Therefore, vehicle of the present utility model is installed when slowing down, in a single day the driving shaft rotating speed is lower than the driven axle rotating speed, be between outer ring of the present utility model and inner ring in case produce speed discrepancy, ball in the wedge slot promptly rolls to the broad place, and both are in time broken away from, and vehicle is in the free sliding state.Therefore, the utlity model has and guarantee sliding speed and distance to the full extent, reduce the effect of fuel consumption, thereby and have positive effect avoiding the passive idle running of motor to prolong its life-span.

[description of drawings] accompanying drawing is the utility model structural representation.

[mode of execution] as shown in drawings, whole inner ring (6) and outer ring (2) two-part of dividing of the utility model, the outer rim of outer ring is flank profil (1), the inner edge of inner ring is mounting hole (5).The inner edge of outer ring has wedge slot (4), and the ball (3) of cylinder type or ball-shaped is set between the outer rim of this wedge slot and inner ring.In the present embodiment, the outer ring flank profil is a driving gear, clockwise rotates; What cooperate with the inner edge mounting hole is driven axle, such as being rear-wheel spindle.When the outer ring rotating speed was higher than the driven axle rotating speed, the ball in the wedge slot (4) rolled to narrower place, and inner ring of the present utility model (6) and outer ring (2) are located and bonding state, and promptly vehicle is in the driven state; When unclamping or reduce throttle, the outer ring rotating speed is lower than the driven axle rotating speed, produces counterclockwise rotation with respect to driven axle, and the ball in the wedge slot (4) is rolled to the broad place, the utility model place and disengaged position, and promptly vehicle is in the free sliding state.

For guarantee that ball (3) rolls freely in wedge slot, in embodiment as shown in drawings, in the outer ring (2) of wedge slot (4) broad one end, be provided with anti-slip device, constitute by the through hole (9) on outer ring (2) and the thimble of wherein arranging successively from inside to outside (7), spring (8) and shutoff screw (10).This anti-slip device can guarantee that ball (3) is in the appropriate location in the wedge slot (4) when inner ring (6) and outer ring (2) disengaging, make inner ring (6) and outer ring (2) to enter bonding state from disengaged position easily.

Claims

1, a kind of motorcycle clutch driving gear, its outer rim are flank profil (1), and inner edge is mounting hole (5), be characterised in that, and its whole inner ring (6) and outer ring (2) divided, the outer rim of outer ring is a flank profil, the inner edge of inner ring is a mounting hole; The inner edge of outer ring has wedge slot (4), and the ball (3) of cylinder type or ball-shaped is set between the outer rim of this wedge slot and inner ring.

2, motorcycle according to claim 1 clutch driving gear, its feature also is, in the outer ring (2) of wedge slot (4) broad one end, be provided with anti-slip device, constitute by the through hole (9) on outer ring (2) and the thimble of wherein arranging successively from inside to outside (7), spring (8) and shutoff screw (10).