CN2625279Y

CN2625279Y - Controllable sliding differential type infinite variable speed mechanism of motorcycle

Info

Publication number: CN2625279Y
Application number: CN 03258937
Authority: CN
Inventors: 付宪生
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-16
Filing date: 2003-06-16
Publication date: 2004-07-14
Anticipated expiration: 2013-06-16

Abstract

The utility model relates to a stepless speed changer for motorcycles, which is characterized in that: A gear drive pair on a V-shaped driven belt shaft meshes with a gearwheel of a planetary gear carrier. A cluster gear of an umbrella-like gear for a differential mechanism meshes with a gear on a gear pair and an output shaft of a motor to form a drive route. The other drive route is arranged on a chain drive mechanism on a differential shaft. The utility model hast the advantages of high efficiency and lower consumption of a shift transmission and simple operation of a V-shaped belt stepless speed changer. Besides, with a simple structure and rational design, rotational speed of the motor is not high while the gearing utilizes the motor to brake, thus ensuring driving safety and applying to bestriding and pedal type motorcycle of various displacements.

Description

Motor bike controllable slide differential type toric transmission

Technical field

The utility model relates to the motorcycle stepless transmission system.

Background technology

Existing motorcycle shift formula transmission operating trouble has the gear automatic speed variator complex structure, the fault rate height; The v-belt stepless speed variator converter speed ratio is little, the oil consumption height, and its shortcoming on the other hand is that belt and clutch-lining are easy to wear.

Summary of the invention

For solving the problem that above-mentioned motorcycle gear box exists, the utility model provides a kind of efficient advantage of gear shifting type change-speed box that both possessed, and has both the motor bike controllable slide differential type toric transmission of toric transmission strong point easy and simple to handle again.

Realize that the above-mentioned purpose technical solution is as follows:

Motor bike controllable slide differential type toric transmission comprises casing and V-shape belt speed-changing mechanism, and the V-shape belt speed-changing mechanism comprises power-transfer clutch hoof piece, the clutch drum on driving and driven belt pulley, V-shape belt and the driven pulley, it is characterized in that:

The driven pulley axle of A, V-shape belt speed-changing mechanism is provided with reduction pinion teeth 17, is located on the casing the coaxial gear 14 that also is provided with by tween drive shaft with miniature gears 17 gears in meshs 13; With gear 14 ingears be planetary gear carrier big gear wheel 25, planetary gear carrier big gear wheel 25 is located on the casing by differential axle 10, planetary gear carrier big gear wheel 25 both sides are coaxial to be

diff crowngear

24,8, is

planetary wheel

7,22 with

diff crowngear

24,8 ingears respectively; The coaxial disjunctor gear 12 that is provided with in diff crowngear 8 outsides, be located on the casing by anchor shaft 26 with gear 12 gears in meshs 5, gear 5 is provided with disjunctor free-wheel clutch 6, the connecting shaft of gear 5 one sides, gear 5 puts and is provided with gear 3, gear 3 is provided with disjunctor free-wheel clutch 27, is located on the engine output shaft with gear 3 gears in meshs 4;

Also be provided with drive sprocket 9 on B, the differential axle 10, driven sprocket 15 is located on the motorcycle rear axle, strides on the driving and driven sprocket wheel 9,15 and is provided with chain.

The utility model is compared with existing motorcycle gear box and is had the following advantages:

1, the utility model had both possessed the efficient advantage of shift transmission, had both the v-belt stepless speed variator advantages of simple operation again.

2, the utility model does not need to set up operating handle and can realize the controllable slide function, owing to possess controlled sliding function, can obviously reduce the wearing and tearing of clutch-lining and V-shape belt, has reduced the maintenance cost of motor bike.

3, the utility model converter speed ratio is big, can reach more than 1 to 10, also can realize speed change when extremely hanging down the speed of a motor vehicle.

4, the utility model is simple in structure, and is reasonable in design, utilizing driving engine to lead the resistance glancing impact, and engine speed can be not too high, guaranteed driving safety.

5, this transmission system is applicable to straddling of various discharge capacities and pedal motorcycle.

Description of drawings

Fig. 1 is the utility model structural representation.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is further described by embodiment.

Motor bike controllable slide differential type toric transmission comprises casing and V-shape belt speed-changing mechanism, and the V-shape belt speed-changing mechanism comprises power-transfer clutch hoof piece 20, the clutch drum 21 on driving pulley 1, driven pulley 19, V-shape belt 23 and the driven pulley 19.

On the driven pulley axle 18 of V-shape belt speed-changing mechanism reduction pinion teeth 17 is housed, is installed on the casing the coaxial gear 14 that also is equipped with miniature gears 17 gears in meshs 13 by tween drive shaft; With gear 14 ingears be planetary gear carrier big gear wheel 25, planetary gear carrier big gear wheel 25 is installed on the casing by differential axle 10, planetary gear carrier big gear wheel 25 both sides are coaxial to be

diff crowngear

24,8, is

planetary wheel

7,22 with

diff crowngear

24,8 ingears respectively; Diff crowngear 8 outsides are coaxial to be disjunctor gear 12, be installed on the casing by anchor shaft 26 with gear 12 gears in meshs 5, disjunctor free-wheel clutch 6 is housed on the gear 5, the connecting shaft of gear 5 one sides, gear 5 puts gear 3 is housed, disjunctor free-wheel clutch 27 is arranged on the gear 3, be loaded on the engine output shaft 1 with gear 3 gears in meshs 4.

Drive sprocket 9 also is housed on the differential axle 10, and driven sprocket 15 is loaded on the motorcycle rear axle 16, and chain 11 in straddle mounting on the driving and driven sprocket wheel 9,15.

As shown in Figure 1, behind the fire an engine, when rotating speed was lower than 1500 rev/mins, the gear 4 on the engine output shaft drove anchor shaft gear 3, free-wheel clutch 27 idle running; Driving pulley 2 drives driven pulley 19 by V-shape belt 23, and this moment, power-transfer clutch hoof piece 20 was with driven belt pulley 19 rotations.When engine speed surpasses 1500 rev/mins, power-transfer clutch hoof piece 20 is thrown away, combines with clutch drum 21, rotates thereby drive driven pulley axle 18, driven pulley axle 18 is passed to planetary gear carrier big gear wheel 25 by reduction pinion teeth 17, reducing gear 13, gear 14 with power; Planetary gear carrier big gear wheel 25 is by

planetary wheel

7,22,

diff crowngear

8,24, power is passed to differential axle 10, and pass through axle and go up diff right side gear 12, drive anchor shaft gear 5, free-wheel clutch 27 and gear 3, gear 4 to engine output shaft, at this moment, free-wheel clutch 6 dallies on anchor shaft 26, and free-wheel clutch 27 idle running are slowed down and stopped gradually, and differential axle 10 is motionless.This is the drive state of vehicle when being about to start to walk.

Rising along with engine speed, the V-shape belt stepless speed changing mechanism begins speed change, the amplitude that planetary gear carrier big gear wheel 25 rotating speeds raise is greater than diff right side gear 12, the revolution ratio of the two begins from 1 to 2 to 1 to 1 transition, differential axle 10 begins to rotate, and power is passed to motor cycle rear wheel 16 through drive sprocket 9, chain 11, driven sprocket 15, vehicle begins starting.The revolution ratio of planetary gear carrier big gear wheel 25 and diff right side gear 12 promptly is that Vehicle Speed is by the 0 stepless change process to maximum speed from 1 to 2 to 1 to 1 process that changes.

When vehicle reduces the decline of throttle engine speed, the rotating speed of driven pulley axle 18 descends thereupon, and by reduction pinion teeth 17, reducing

gear

13,14, the rotating speed of planetary gear carrier big gear wheel 25 is descended, can be drawn by the diff principle of work: when the rotating speed of planetary gear carrier big gear wheel 25 drops to two/for the moment of differential left side crowngear 24, the rotating speed of diff right side gear 12 is 0.When the driving engine rev down, diff right side gear 12 changes from 1 to 1 to 0 to 1 with the revolution ratio of planetary gear carrier big gear wheel 25, when the two revolution ratio greater than 1 to 1 less than 0 to 1 the time, free-wheel clutch 6 and free-wheel clutch 27 all are in idling conditions, at this moment vehicle travels for sliding; When the revolution ratio of the two equaled 0 to 1, diff right side gear 12 rotating speeds were 0, and free-wheel clutch 6 stops idle running, and anchor shaft gear 5 rotating speeds are 0, and free-wheel clutch 27 continues idle running.If this moment, engine speed continued to descend, can realize that driving engine leads the resistance braking.This contrary transmission transmitting ratio is the drive characteristic of 2 times of the moving transmitting ratios of saequential transmission, can avoid effectively utilizing driving engine to lead the drawback of resistance glancing impact engine rpm too high, thereby can reduce oil consumption.

In sum, when vehicle with middling speed or when running at high speed, as long as when reducing throttle, make the rotating speed of the driven pulley axle of this transmission system be higher than 50% of former rotating speed, just can realize sliding travelling, and when the rotating speed of driven pulley axle be lower than former rotating speed 50% the time, can realize that again driving engine leads resistance braking, that is to say that this transmission system does not use in final transmission under the situation of free-wheel clutch can realize controllable slide, like this can not only saving fuel, and can reduce the wearing and tearing of V-shape belt, because when sliding, V-shape belt does not stress, owing to need not with lever operated, only need moving a little throttle,, and can increase the Occupation coefficient that slides so operation is very easy.

Claims

1, motor bike controllable slide differential type toric transmission comprises casing and V-shape belt speed-changing mechanism, and the V-shape belt speed-changing mechanism comprises power-transfer clutch hoof piece, the clutch drum on driving and driven belt pulley, V-shape belt and the driven pulley, it is characterized in that:

The driven pulley axle of A, V-shape belt speed-changing mechanism is provided with reduction pinion teeth (17), is located on the casing by tween drive shaft with miniature gears (17) gears in mesh (13), the coaxial gear (14) that also is provided with; With gear (14) ingear be planetary gear carrier big gear wheel (25), planetary gear carrier big gear wheel (25) is located on the casing by differential axle (10), planetary gear carrier big gear wheel (25) both sides are coaxial to be diff crowngear (24), (8), is planetary wheel (7), (22) with diff crowngear (24), (8) ingear respectively; The coaxial disjunctor gear (12) that is provided with in diff crowngear (8) outside, be located on the casing by anchor shaft (26) with gear (12) gears in mesh (5), gear (5) is provided with disjunctor free-wheel clutch (6), the connecting shaft of gear (5) one sides, gear (5) puts and is provided with gear (3), gear (3) is provided with disjunctor free-wheel clutch (27), is located on the engine output shaft with gear (3) gears in mesh (4);

Also be provided with drive sprocket (9) on B, the differential axle (10), driven sprocket (15) is located on the motorcycle rear axle, strides on driving and driven sprocket wheel (9), (15) and is provided with chain.