CN2570169Y

CN2570169Y - Differential type infinite variable speed mechanism for pedal motorcycle

Info

Publication number: CN2570169Y
Application number: CN 02257662
Authority: CN
Inventors: 付宪生
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-02
Filing date: 2002-10-02
Publication date: 2003-09-03
Anticipated expiration: 2012-10-02

Abstract

The utility model relates to a variable speed mechanism for a motorcycle, which is characterized in that a one-way clutch 9 is arranged on a speed reduction big gear assembly 8 engaged with a speed reduction pinion 7 on a driven belt wheel shaft; a planetary gear frame big gear 11 of a differential mechanism engaged with a gear 10 and a shaft type differential mechanism are sheathed on a back wheel shaft 21 of the motorcycle; one side of the planetary gear frame big gear of the differential mechanism is provided with an integrated one-way clutch 19. The variable speed ratio of the utility model reaches more than 1: 10. In the starting and variable speed process, the clutches can not slip; the abrasion of the clutch friction plate can be reduced; the oil consumption of the motorcycle can be reduced.

Description

Pedal motorcycle differential type toric transmission

Technical field

The utility model relates to the motorcycle stepless change-speed box.

Background technology

What extensively adopt on pedal motorcycle at present is v-belt stepless speed variator, and this kind change-speed box has lot of advantages, also exists some shortcomings simultaneously.Wherein relatively distinct issues are oil consumption height, the motor bike that adopts this change-speed box power-transfer clutch when starting and low speed driving is in half hitch and closes state, just skid, in the city in the driving process, the motor bike many places are in idling mode, this situation of skidding accounts for more than 50%, wastes fuel on the one hand, has also quickened the wearing and tearing of clutch-lining on the other hand.Causing the high Another reason of oil consumption is that this change-speed box can cause engine rpm too high when driving engine is received throttle, and particularly particularly evident when descending, non-refuelling is not walked, and has so just increased oil consumption.At the problems referred to above, people's solution is to install free-wheel clutch additional on the intermediate gear of wheel reduction gear, just make motor bike possess wheel function, but this measure is the safety with motor bike is cost, particularly or in case of emergency at descending, can not utilize the resistance of leading of driving engine to brake, the reliability of motor bike is reduced greatly.

Summary of the invention

In order to reduce motorcycle fuel consumption, solve clutch fading and serious wear problem, to improve converter speed ratio, the utility model provides a kind of novel pedal motorcycle differential type toric transmission.

The technical solution that realizes above-mentioned purpose is such:

Pedal motorcycle differential type toric transmission is located at power-transfer clutch and the variable pulley mechanism of active on the engine output shaft, it is characterized in that:

A, be provided with free-wheel clutch 9 with reduction pinion teeth 7 ingear deceleration big gear wheels combination 8 on the driven pulley axle, make up the 8 coaxial gears 10 that are provided with the deceleration big gear wheel, be set on the motorcycle rear axle 21 with gear 10 ingear pinion frame big gear wheels 11 and a shaft type diff, pinion frame big gear wheel 11 1 sides are provided with siamesed, are set in the free-wheel clutch 19 on the axle between dental clutch 20 and the gear 12;

B, active variable pulley 4 one sides are provided with disjunctor bevel gear 18, are located at axle 16 1 ends with bevel gear 18 ingear bevel gears 17, and axle 16 other ends are provided with bevel gear 15, are located on the hind axle 21 with bevel gear 15 ingear bevel gears 13; Bevel gear 13 opposite sides are siamesed differential gear 12; Dental clutch 20 1 sides on the hind axle 21 are provided with siamesed differential gear 12; Be located at the pinion frame on the hind axle 21, its upper and lower is respectively equipped with and two differential gears, 12 gears in meshs 14.

The utility model is compared the advantage that several respects are arranged with existing v-belt stepless speed variator:

1, adopt this differential type toric transmission, vehicle can not sent out and dash during start the engine, can not send out under the high situation of engine speed yet and dash.

2, use this change-speed box, power-transfer clutch is non-slip in starting and speed-change process, even when extremely hanging down the speed of a motor vehicle, power-transfer clutch can not skid yet.

3, the converter speed ratio of this differential type toric transmission is up to more than 1: 10, effective speed change when the extremely low speed of a motor vehicle.

4, utilizing driving engine to lead the resistance glancing impact, adopting this change-speed box can not make engine rpm too high, vehicle the phenomenon that non-refuelling is not walked can not occur when descending is received throttle, can realize having resembled Reduced Speed Now the gear change-speed box.

5, because this gear shift mode can select lower power-transfer clutch in conjunction with rotating speed, and vehicle is just to start to walk after the combination fully at power-transfer clutch, so wearing and tearing are little, thereby reduces the wearing and tearing of clutch-lining.

6, owing to adopt this structure change-speed box to solve the problem of clutch fading when driving engine leads resistance glancing impact engine rpm too high and starting and low speed driving, therefore can reduce oil consumption.

Description of drawings

Fig. 1 is the utility model drive mechanism scheme drawing.

The specific embodiment

In conjunction with the accompanying drawings, the utility model is further described.

Pedal motorcycle differential type toric transmission comprises power-

transfer clutch

2,3 and the variable pulley mechanism of active on the engine crankshaft 1.Initiatively variable pulley mechanism comprises driving pulley 4, driven pulley 6 and triangle cingulum 5.

With in reduction pinion teeth 7 ingear deceleration big gear wheels on the driven pulley axle combination 8 free-wheel clutch 9 is housed, be coaxially installed with gear 10 with deceleration big gear wheel combination 8, be sleeved on the motorcycle rear axle 21 with gear 10 ingear pinion frame big gear wheels 11 and a shaft type diff, pinion frame big gear wheel 11 1 sides are siamesed, be sleeved on the free-wheel clutch 19 on the axle between dental clutch 20 and the gear 12.

Initiatively variable pulley 4 one sides are disjunctor bevel gear 18, are installed in axle 16 1 ends with bevel gear 18 ingear bevel gears 17, and axle 16 other ends are equipped with bevel gear 15, are installed on the hind axle 21 with bevel gear 15 ingear bevel gears 13; Bevel gear 13 opposite sides are siamesed differential gear 12; Dental clutch 20 1 sides on the hind axle 21 are siamesed differential gear 12; Be sleeved on the pinion frame on the hind axle 21, be equipped with respectively and two differential gears, 12 gears in meshs 14 its upper and lower, sees Fig. 1.

Behind the start the engine, when engine speed surpasses 1500 rev/mins, power-transfer clutch hoof piece 2 is thrown away, combine with clutch drum 3, thereby drive initiatively variable belt pulley 4 and driving bevel gear 18 rotations, driving pulley is passed to driven pulley 6 to power by triangle cingulum 5, so reduction pinion teeth 7 and deceleration big gear wheel combination 8,10 rotate, and drive planetary gear carrier big gear wheel 11 is rotated, driving bevel gear 18 item bevel gears 15 by transmission shaft two ends synchronous with driving pulley, 17 and transmission shaft 16, drive driven bevel pinion 13, this moment, dental clutch was in bonding state, because hind axle is motionless, differential left side gear 12 is also motionless, free-wheel clutch 19 idle running, principle of work according to diff can be calculated, this moment, the rotating speed of driven bevel pinion 13 was the twice of planetary gear carrier big gear wheel 11, because the rotating speed of deceleration big gear wheel 8 is a little less than reduction pinion teeth 10, and free-wheel clutch 9 low idle.This is that driving engine just starts, and rotating speed is a little more than 1500 rev/mins, and power-transfer clutch is combination just, is the transmission conditions of vehicle when not starting to walk as yet.

Along with engine speed raises, free-wheel clutch 9 stops idle running very soon, power is through bent axle 1, power-transfer clutch hoof piece 2, clutch drum 3, the variable belt pulley of active, triangle cingulum 5, driven variable belt pulley 6, reduction pinion teeth 7, big miniature gears 8 slows down, 10, planetary gear carrier big gear wheel 11, planetary wheel 14, diff two side gears 12, dental clutch 20 passes on the hind axle 21, because the effect of v-belt stepless speed variator, the speed that the speed that planetary gear carrier big gear wheel 11 rotating speeds raise raises greater than driven bevel pinion 13 rotating speeds, planetary gear carrier big gear wheel 11 with from the revolution ratio of bevel gear 13 from the outset 1 to 2 to 1 to 1 transition, when the revolution ratio of the two is 1 to 1, free-wheel clutch 19 stops idle running, at this moment transmitting ratio reaches maximum, vehicle is realized the most at a high speed, this shows, the revolution ratio of planetary gear carrier big gear wheel 11 and driven bevel pinion 13 promptly is that car speed is from the 0 stepless change process to maximum speed from 1 to 2 process to 1 to 1 transition.

When the unexpected rev down of driving engine, free-wheel clutch 9 idle running, free-wheel clutch 19 is locked with diff, the power of hind axle 21 passes to bent axle 1 through dental clutch, free-wheel clutch 19, planetary gear carrier big gear wheel 11, planetary wheel 14, diff two side gears 12, driven bevel pinion 13, transmission axle head bevel gear 15, transmission shaft 16, transmission axle head bevel gear 17, driving bevel gear 18, clutch drum 3, power-transfer clutch hoof piece 2, realize Jake brake, power transmission line when at this moment, driving engine quickens interrupts because of free-wheel clutch 9 idle running.

From with the above-mentioned transmission process as can be seen, vehicle is in starting with when quickening, the route of transmission of power is the V-shape belt stepless speed changing mechanism on the left side, power is by driving pulley, V-type cingulum, driven pulley and reducing gear are delivered on the hind axle 21; The route of vehicle transmission of power when slowing down is the transmission shaft on the right, and hind axle 21 is delivered to the force of inertia of vehicle ' on the engine crankshaft by driven bevel pinion, transmission shaft, driving bevel gear, realizes Jake brake.

Claims

1, pedal motorcycle differential type toric transmission comprises power-transfer clutch and the variable pulley mechanism of active on the engine output shaft, it is characterized in that:

A, be provided with free-wheel clutch (9) with reduction pinion teeth (7) ingear deceleration big gear wheel combination (8) on the driven pulley axle, with deceleration big gear wheel combination (8) coaxial gear (10) that is provided with, be set on the motorcycle rear axle (21) free-wheel clutch (19) on the axle that pinion frame big gear wheel (11) one sides are provided with siamesed, be set in dental clutch between (20) and the gear (12) with gear (a 10) ingear pinion frame big gear wheel (11) and a shaft type diff;

B, active variable pulley (4) one sides are provided with disjunctor bevel gear (18), be located at axle (16) one ends with bevel gear (18) ingear bevel gear (17), axle (16) other end is provided with bevel gear (15), is located on the hind axle (21) with bevel gear (15) ingear bevel gear (13); Bevel gear (13) opposite side is siamesed differential gear (12); Dental clutch (20) one sides on the hind axle (21) are provided with siamesed differential gear (12); Be located at the pinion frame on the hind axle (21), its upper and lower is respectively equipped with and two differential gears (12) gears in meshs (14).