CN1088437C

CN1088437C - Motor-mounted double-purpose bicycle

Info

Publication number: CN1088437C
Application number: CN93100736A
Authority: CN
Inventors: 刘敬中
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-01-01
Filing date: 1993-01-01
Publication date: 2002-07-31
Anticipated expiration: 2013-01-01
Also published as: CN1075287A

Abstract

The present invention provides a bicycle driven by a motor or foot operation, which is a bicycle provided with a power-assisted driving device and driven by the motor or the foot operation to run. The driving way is the driving way using a middle shaft and a chain; the present invention solves the problems that the existing power-assisted bicycles, or double-purpose bicycles, and transmission devices thereof have the disadvantages of bulky volume, poor balance stability and poor portability and flexibility. In the present invention, a transmission speed reducing device with coaxial input and output, such as speed change transmission bearings, is arranged on a middle shaft and is combined with the bicycle. The present invention has good integration and adopts two sets of overrunning clutch mechanisms which are arranged on the middle shaft in parallel; the present invention has the advantages of flexible conversion, lightness, good stability and good application.

Description

Autocycle

The present invention relates to a kind of autocycle, is a kind of motor-driven foot-operated bicycle that assistant force drive device is arranged that travels of holding concurrently.

Existing powdered assisting bicycle or machine are stepped on dual-purpose bicycle and actuating device thereof, as No. 90102216.0, Chinese patent, No. 89219687.4, Chinese patent, U.S. US595,817, No. 91109707.4, Chinese patent, more than multiple scheme is proposed in all patent specifications, scheme one all places trailing wheel one side with driving engine and driving device, and outstanding position is too many, centre-of gravity shift, the car load balance is poor; Scheme two, trimotor and driving device are attached to central frame beam position on the upper side, not only seem heavy, burdensome, and stability is also poor, structure also becomes numerous and diverse in addition, so destroyed the light and flexible of original bicycle, more lack the appearance and modeling globality, be difficult to through engineering approaches, merchandizing.

The objective of the invention is to provide a kind of improved autocycle, keeping under former bicycle light and flexible, the actuating device volume is little, reduction ratio the is big prerequisite, solve problems such as complete attractive in appearance, the balance and stability of vehicle modeling, random transition, make it have good manoevreability, safe reliability and practicality.

To achieve these goals, the present invention designs a kind of with actuating device and bicycle fusion one, and the autocycle of energy random transition, this motor moped is by former bicycle all parts except that the axis parts, be arranged in central frame beam as [Fig. 2-a, b, c], or the vehicle frame lower portion is as the small-sized primary mover of [Fig. 2-d], be located in the transmission gearbox and be located at the driving system that places on the axis in the beam barrel and form, feature of the present invention is in the above-mentioned driving system, axis is provided with a kind of transmission decelerating device of coaxial input and output, its high speed input end is connected with the flower wheel that the interior one-level transmission of transmission gearbox is paid, also be provided with two covers ratchet type overrunning engaging and disengaging gear arranged side by side on the axis, two driving links of two cover mechanisms, one is connected with axis, another is connected with the low speed mouth of above-mentioned coaxial speed reduction gearing, two driven members of two cover mechanisms, a shared part promptly is that an endoporus has two driven members, and outer rim is fixed with the annulus of hinge wheel---ring set.

In this motor moped driving system, the one-level transmission that is located in the transmission gearbox is paid, for the one-level assisted deceleration is paid, its driving wheel engages original machine output shaft, its flower wheel connects coaxial speed reduction gearing high speed input end, transmits motive power by driving band, and it can be that toothed belt wheel is paid that transmission is paid.

In this motor moped driving system, be located at the transmission decelerating device that places the coaxial input and output in the beam barrel on the axis, can adopt the variable speed transmission bearing type, also can adopt osculating circle retarder or cycloidal-pin wheel gear series reducer etc. to have the speed reduction gearing of coaxial input and output.It is little that said apparatus all has a volume, characteristics such as reduction ratio is big, select for use as the main of this motor moped and slow down, being aided with the one-level deceleration transmission pays, enough big reduction ratio will be obtained, big minor sprocket with former bicycle mates again, optimizes an optimum speed ratio, is enough to guarantee that this motor moped has the speed per hour of a practicality---the 20-30 kilometer.

In this motor moped driving system, be provided with two cover ratchet type overrunning engaging and disengaging gear on axis, this two covers mechanism is respectively an actuating unit motor-driven and pedal power output, is again two kinds of power mutual conversion mechanisms.Two driving link-ratchet bearing (internal friction ring) passes through middleware---ratchet (wedge) drives an output respectively, and promptly endoporus the has two driven members---ring set of ratchet ring (external friction ring).Driving link connects axis, what export is pedal power, another driving link connects coaxial speed reduction gearing low speed mouth, what export is motive power, two kinds of power drive ring set respectively, be fixed with hinge wheel on the ring set, hinge wheel is passed to the small flywheel of rear wheel by chain with two kinds of power, drives wheel rolling and travels.Two cover mechanisms, a wherein cover acting, another set of surmounting.Alternately acting, alternately be in and surmount state, thereby finish motor-driven and foot-driven conversion randomly.

The primary mover of this motor moped; it can be compact internal combustion engine; it can also be small-sized DC motor; in order to guarantee that compact internal combustion engine has idling operation and small-sized DC motor that overload protection is arranged; adorn a centrifugal friction engaging and disengaging gear at output shaft; the grinding disk of its mechanism is connected with the driving wheel that the one-level transmission is paid, in conjunction with after motive power is passed to flower wheel.

This motor moped is for safe operation, and small-sized primary mover and former bicycle drive system (hinge wheel, chain, small flywheel) must be established full envelope or semiclosed protective cover, chain case.

The present invention compares with existing above-mentioned several vehicles and actuating device thereof, and its advantage is:

One, the crankshaft drive speed reduction gearing that in driving system, adopts, as variable speed transmission bearing, osculating circle retarder etc., make full use of their coaxial input/output structure compactnesses, big, the robust motion energy reliable characteristics of reduction ratio, its device is placed on the axis, merge one with former bicycle, thereby simplified the structure of driving system, dwindled volume, car load harmony and overall appearance have been manifested, unconsciously heavy sense and burdensome sense; Two, in driving system, adopted two covers ratchet type overrunning engaging and disengaging gear arranged side by side, realized random transition, must not control by handle; Three, small-sized primary mover installation site is in central frame beam or lower portion, center of gravity amplitude minimum, good stability; Meet rugged road or Da Po road when four, motor-driven, but assisted pedal stroke also.

Existing above-mentioned several vehicles and actuating device thereof, their weak point is:

One, be contained in the actuating device of rear axle, see that from the general design of car center of gravity is back partially, stability is short of, damping property is relatively poor, transmission adopted is planetary reduction gear in addition, and not only speed ratio is little, and work noise is big; Two, be attached to central frame beam as scheme two, three a complete set of actuating devices, volume is bigger, and center of gravity is also on the upper side, stability is not good enough, light and flexible still not, and the conversion of two kinds of drivings must be moved handle, convenient inadequately freely, car load shortcoming globality and good surface appearance moulding.

[Fig. 1] is embodiment of the invention driving system scheme drawing.

[Fig. 2] is drive arrangement mode scheme drawing of the present invention.

Introduce one embodiment of the present of invention below in conjunction with [Fig. 1]:

[scheme middle-size and small-size primary mover and nibble internal connecting type overrunning clutch mechanism with variable speed transmission bearing, two cover ratchet type overrunning engaging and disengaging gear with tooth with put-put, transmission decelerating device, the one-level transmission is paid and paid with the synchronous toothed belt wheel is example].

1. foot-operated travelling:

The same with ordinary bicycle, foot-operated forward pedal crank 1, drive the axis 2 that is fixed together with pedal crank 1, be fixed on a tooth on the axis 2 and nibble driving link---the ratchet bearing 3 of internal connecting type overrunning clutch mechanism, 3 ratchet bearings are by its middleware---ratchet 4, driven member---outer rim is fixed with hinge wheel 6 in engagement, endoporus has the ring set 5 of ratchet ring, hinge wheel 6 rotates with ring set 5, the small flywheel that hinge wheel 6 drives on the former bicycle rear shaft of chain drive, promptly driving trailing wheel small flywheel wink rolls forward, [at this moment, another set of tooth arranged side by side is nibbled driving link---ratchet bearing 20 and middleware---ratchet 21 of internal connecting type overrunning clutch mechanism, is in to surmount state].

2. powered travel:

A. start idling---in static or foot-operated advancing, pulling rope starter mechanism 9, be fixed on magneto generator 10 high speed revolutions on the put-put bent axle 11, by Ignition Module, high tension cord and spark ignitor put-put 13, put-put 13 the regulation the low speed operating mode under tickover [at this moment, be contained in the centrifugal friction engaging and disengaging gear 14 on crank 11 mouths, still be in disengaged position].

B. motor-driven advancing---when strengthening the throttle adjustment device that is installed on the handlebar progressively, put-put 13 begins to enter high-speed working condition, centrifugal friction engaging and disengaging gear 14 in the transmission gearbox 17, friction and main synchronous toothed belt wheel 15 grinding disks that are connected as a single entity under centrifugal action, main synchronous toothed belt wheel 15 drives cingulum 16, transmission of power is given from synchronous toothed belt wheel 18, from synchronous toothed belt wheel 18 be located on the axis 2, ring (high speed input end) is connected in the solid variable speed transmission bearing 19 in middle beam barrel 7 of outer shroud, the high speed power that slows down through one-level is turned round by interior ring input variable speed transmission bearing 19, remake the deceleration of large speed ratio, therefrom ring (low speed mouth) low speed output, in the ring with another set of tooth nibble the internal connecting type overrunning clutch mechanism driving link---ratchet bearing 20 is connected, ratchet bearing 20 rotates around axis, power is passed through middleware---ratchet 21, driven member---outer rim is fixed with hinge wheel 6 in engagement, endoporus has the ring set 5 of ratchet ring, ring set 5, hinge wheel 6 rotates together, drive the small flywheel on the chain drive back wheels of vehicle axle, promptly driving the trailing wheel rolling small flywheel wink advances, [at this moment, be fixed on ratchet bearing 3 on the axis 2 and ratchet 4 are in surmount state].

C. flame-out with brake---on handlebar, flame-out button is housed as light motorcycle is the same, when one pressing magneto generator ground connection gently, flame-out immediately, two of button parallel connection that different is, one is contained near the grip, another is contained in the brake handle bottom, when brake puts in place, also press flame-out button simultaneously, flame-out rear driving system is because the damping of moment generation, wink promptly stops operating, no longer include takeoff output, the inertia of surplus wheel only, very favourable drag.

If at 25 kilometers/hour, positive negative value is no more than 10%, and the maximum speed above bicycle designs is not arranged with maximum speed design, adopt rise before and after the former bicycle lock or mountain bike cantilever brake, our experiments show that, can reach the braking purpose fully.

3. safety measure:

For safety, be provided with big chain case 8 and put-put protective cover 12.

Claims

1. autocycle, it is a kind of motor-driven foot-operated bicycle that assistant force drive device is arranged that travels of holding concurrently, this motor moped is by former bicycle other all parts except that the axis parts, be arranged in the small-sized primary mover of central frame beam or vehicle frame lower portion, be located in the transmission gearbox and be located at the driving system that places on the axis in the beam barrel and form, feature of the present invention is in the above-mentioned driving system, axis is provided with a kind of transmission decelerating device of coaxial input and output, its high speed input end is connected with the flower wheel that the interior one-level transmission of transmission gearbox is paid, also be provided with two covers ratchet type overrunning engaging and disengaging gear arranged side by side on the axis, two driving links of two cover mechanisms, one is connected with axis, another is connected with the low speed mouth of above-mentioned coaxial speed reduction gearing, two driven members of two cover mechanisms, a shared part, promptly be that an endoporus has two driven members, outer rim is fixed with the annulus of hinge wheel---ring set.

2. a kind of autocycle as claimed in claim 1, the transmission decelerating device that it is characterized in that above-mentioned a kind of coaxial input and output, can be the variable speed transmission bearing type, can also be the speed reduction gearing that osculating circle retarder or cycloidal-pin wheel gear series reducer etc. have coaxial input and output.

3. a kind of autocycle as claimed in claim 1 is characterized in that above-mentioned ratchet type overrunning engaging and disengaging gear, can be that tooth is nibbled internal connecting type, can also be the friction internal connecting type.