CN2617672Y

CN2617672Y - Automatic gear system for motorcycle engine with bending beam

Info

Publication number: CN2617672Y
Application number: CN 03234382
Authority: CN
Inventors: 宋志平; 伍本银
Original assignee: 伍本银
Current assignee: Chongqing Yingang Technology Group Co Ltd
Priority date: 2003-05-14
Filing date: 2003-05-14
Publication date: 2004-05-26
Anticipated expiration: 2013-05-14

Abstract

The utility model relates to an automatic shifting gear system for the engine in riding type motors with bending frame, comprising a crankshaft, a medium-low speed clutch, a high speed clutch, a gear, a host shaft and a slave shaft; a low speed clutch block and a medium speed clutch block are arranged in the low speed clutch; a low speed passive disc is matched with a spline of the crankshaft, and the medium speed disc is matched with the crankshaft gap; the housing of medium-low speed clutch is combined with a planet gear by means of inner and outer gear rings; the driving gear is engaged with a joint sleeve of the medium speed passive disc and meshed with a slave reducer gear on the host shaft together with a key sleeve; a low speed driving gear is sleeved on the host shaft engaging with a low speed slave gear on the slave shaft. The host shaft is with a high speed of clutch and the clutch housing is matched with the keys on the host shaft; the high speed slave disc is combined with an outer spline on the conjunction sleeve on the high speed driving gear; the high speed driving gear is engaged with a high speed slave gear on the slave shaft. The automatic gear shifting system adopts chain transmission and has the advantages of high transmission efficiency, low oil consumption, safety and comfort.

Description

A kind of riding type beam motorcycle driving engine automatic speed-changing system

Technical field

The utility model belongs to the transmission for vehicles technical field, is specifically related to a kind of automatic speed-changing system of riding type beam motorcycle driving engine.

Technical background

In order to improve comfort feature and the safety that motor bike is driven, be important one side automatically by manually changing into its speed change system.Now existing bel-drivenn stepless speed variator system uses on the pedal motorcycle, but does not also have the automatic speed-changing system that can be suitable at riding type beam motorcycle, generally also adopts hand gear.There is following defective in hand gear: 1, oil consumption is big, engine power utilizes low: transfer shifter bar because vehicle need subtract throttle, hand clutch handle, pin in the process of moving during speed change, lose time, running car inertia is descended, treat to refuel again after the speed change, both oil consumptions, loss engine power again can not effectively utilize the inertia that travels of motor bike.2, handling, safety and traveling comfort are poor: need use the hand clutch handle during hand gear, use the pin regulation stall, cry complicated road surface, need ceaselessly back and forth operation, make easily that the driver is tired to cause traffic accident.

Summary of the invention

The purpose of this utility model is to provide a kind of automatic speed-changing system that is applicable to the riding type beam motorcycle driving engine at the deficiency of the stepless speed variator system existence of the existing belt driven type of motor bike, adopts chain-driving, improve driving efficiency, booster response is fast, reduces oil consumption, safety and comfort.

The technical solution of the utility model is as follows:

A kind of riding type beam motorcycle driving engine automatic speed-changing system, comprise bent axle, middle low-speed clutch, high-speed clutch, gear, main shaft and countershaft, it is characterized in that being equipped with in the low-speed clutch centrifugal of low-speed centrifugal piece and middling speed, their low speed driven disc and bent axle spline fitted, middling speed driven disc and bent axle free-running fit, the shell of middle low-speed clutch combines driving gear and middling speed driven disc adapter sleeve spline fitted with planetary wheel by inside and outside gear ring; Driving gear and key are enclosed within the involuntary speed reduction gear mesh on the main shaft, and key is with low-speed active gear on the main shaft, the low speed ring gear engagement of band isolator on low-speed active gear and the countershaft; Also be combined with high-speed clutch on the main shaft, the high-speed clutch shell cooperates with main spindle multiple spline, and the high speed driven disc combines with the male splines of high speed driving gear adapter sleeve, and high speed driving gear and key are enclosed within the high speed ring gear engagement on the countershaft.

This automatic speed-changing system is also installed a Ratcheting one-way clutch on the inner ring of middling speed driven disc inner spline housing.

The advantage that the utility model had is:

1, save fuel oil, the power utilization height: this speed change system is that booster response is fast by the engine speed automatic speed changing, can effectively utilize the power of driving engine, saves fuel oil more than 10%.

2, effectively improved handling, safety and traveling comfort: just can control motor bike when the row of various road surfaces as long as use this speed change system to control throttle well, the driver controls easily, safety and comfort.

Description of drawings

Fig. 1 is the constructional drawing of riding type beam motorcycle driving engine automatic speed-changing system;

The specific embodiment

Referring to Fig. 1, riding type beam motorcycle driving engine automatic speed-changing system is installed in the right big case and change speed gear box of driving engine.Its middle low-speed clutch is assemblied on the engine crankshaft 1, low-speed centrifugal piece 3 in the power-transfer clutch connects bent axle 1 by low speed driven disc 2 female spliness, centrifugal 5 interior circle by the drive splines cover of middling speed driven disc 6 of middling speed is sleeved on the bent axle 1, and with clutch outer member 4 on planetary wheel 7 riveted joint, also be connected to an integral body with driving gear 11 by the drive splines cover.Planetary wheel 7 respectively with inside and

outside gear ring

8,9 engagement of clutch outer member 4, internally toothed annulus 9 connects Ratcheting one-way clutch 10 by the inner ring of the inner spline housing on the middling speed driven disc 6.Driving gear 11 meshes with the involuntary speed reduction gear 13 that key is enclosed within on the main shaft 12, goes back key on this main shaft 12 and is with low-speed active gear 18.Low speed ring gear 19 engagements of band isolator 20 on low-speed active gear 18 and the countershaft 21.Also be combined with high-speed clutch on the main shaft 12, its high-speed clutch shell 14 and main shaft 12 spline fitted, the high-speed clutch driven disc combines with the male splines of high speed driving gear 16 adapter sleeves, and high speed driving gear 16 meshes with the high speed ring gear 17 that key is enclosed within on the countershaft 21.

The working process of this speed change system:

1, when engine speed is lower than 1500r/min, centrifugal 3 elastic force that does not overcome spring of low-speed clutch, racing of the engine, speed change system is not worked.

2, when engine speed greater than 1500r/min during less than 3000r/min ,The elastic force that the low-speed centrifugal piece 3 of power-transfer clutch overcomes spring combines with clutch outer member 4, clutch outer member 4 drives planetary wheel 7 rotations by external tooth wheel rim 8, planetary wheel 7 drives driving gear 11 by internally toothed annulus 9, this moment is because there is planetary deceleration effort, the rotating speed of driving gear 11 changes, and turn to also to change, and driving gear 11 is movable the cooperation with bent axle 1, for guaranteeing to turn to the ad hoc Ratcheting one-way clutch 10 of having counted, make driving gear 11 keep original turning to.Transmission involuntary speed reduction gear 13-main shaft 12-low-speed active gear 18-low speed ring gear 19-countershaft 21 successively passes to trailing wheel at last then, and motor bike is in lower-speed state.When engine speed speed under lower-speed state rose, the strength that centrifugal 5 of middling speed overcomes spring combined with clutch outer member 4, and after this planetary wheel 7 is not worked, and power is pressed same path, front and exported by 1: 1 ratio, and this is a middling speed.

3, when the rotating speed of driving engine during greater than 3000r/min, centrifugal 15 of high-speed clutch overcomes spring force and combines with clutch outer member 14, high-speed clutch drives high speed driving gear 16, high speed driving gear 16 drives high speed ring gear 17, because the speed of high speed ring gear 17 is higher than the speed of low speed ring gear 19, for fear of the twin-stage transmission, isolator 20 in the low speed ring gear 19 works, under the effect of isolator 20, low speed ring gear 19 can not slide driving action, high-revolving power transmits high speed ring gear 17 by high speed driving gear 16, passes to countershaft 21 again to trailing wheel, and this is at a high speed.

Claims

1, a kind of riding type beam motorcycle driving engine automatic speed-changing system, comprise bent axle, middle low-speed clutch, high-speed clutch, gear, main shaft and countershaft, it is characterized in that being equipped with in the low-speed clutch centrifugal of low-speed centrifugal piece and middling speed, they by low speed and middling speed driven disc respectively with the bent axle spline fitted, the shell of middle low-speed clutch combines driving gear and middling speed driven disc adapter sleeve spline fitted with planetary wheel by inside and outside gear ring; Driving gear and key are enclosed within the involuntary speed reduction gear mesh on the main shaft, have key to be with low-speed active gear on the main shaft, the low speed ring gear engagement of band isolator on low-speed active gear and the countershaft; Also be combined with high-speed clutch on the main shaft, the high-speed clutch shell cooperates with main spindle multiple spline, and the high speed driven disc combines with the male splines of high speed driving gear adapter sleeve, and high speed driving gear and key are enclosed within the high speed ring gear engagement on the countershaft.

2, a kind of riding type beam motorcycle driving engine automatic speed-changing system according to claim 1 is characterized in that on the inner ring of the inner spline housing of middling speed driven disc a Ratcheting one-way clutch being installed also.