CN2264433Y

CN2264433Y - Bicycle electric auxiliary driving device

Info

Publication number: CN2264433Y
Application number: CN 96204712
Authority: CN
Inventors: 游东祥; 孙杰坪
Original assignee: Geant China Co ltd
Current assignee: Geant China Co ltd; Giant China Co Ltd
Priority date: 1996-02-17
Filing date: 1996-02-17
Publication date: 1997-10-08
Anticipated expiration: 2006-02-17

Abstract

The utility model provides an electric auxiliary driving device for bicycles, which has the main structure that a spindle is fixedly arranged in a casing in the shaft penetrating direction; a motor and a ring block are fixedly arranged on the spindle; one end of the spindle is penetrated with a sleeve barrel seat; the sleeve barrel seat is fixedly sheathed with a front tooth disk; besides, the sleeve barrel seat is also provided with a one-way transmission component and clamping teeth; the one-way transmission component and the clamping teeth can respectively clamped and bunted with the one-way transmission component and the clamping teeth of the ring gear to commonly generate one-way transmission action. Then the one-way transmission action can drive the front tooth disk to make a bicycle advance. The motor of the utility model and a pedal power output end are coaxial. When the motor is rotated, the utility model can properly help riders drive bicycles to advance through the speed reduction of a composite gear.

Description

Bicycle electric power auxiliary drive

The utility model relates to a kind of bicycle drive motors, relates in particular to a kind of bicycle electric power auxiliary drive.

Bicycle lightly can not pollute again with it, depend merely on manpower and step on the purpose that can reach action, in the various vehicles of modern times, be still and quite be subjected to popular institute and like, especially now in the society that environmental consciousness strengthens, can not produce the trend of the electric motor car and the following just car type development of bicycle of pollution.Therefore, the bicycle industry is answered world trends required, and is produced electric motor process auxiliary drive bicycle in research and development bicycle performance.

The TaiWan, China patent gazette is announced No. 202003 and is disclosed " detachable motor bicycle motor and body structure " utility model patent of a kind of being entitled as, it mainly is to be provided with a housing under the five-way pipe, then be provided with a worm reduction gear in this housing, the housing top is provided with a motor, after this motor transmission power slows down through worm reduction gear, the fluted disc of roll-shell one side drives chain with this fluted disc again, drives backgear bicycle is advanced.

Usually, during the Regular Bicycle travel, if drive bicycle by this structure, the quite good auxiliary effect of advancing that drives is arranged really, but, when above-mentioned prior art is rotated owing to the axle of this motor, essential process reductor slows down to increase rotary torsion, so that driving bicycle easily advances, but the direction of motor axle just is vertical with the direction of crank axle, promptly, motor axle driving angle is to rotate through driving the crank axle after the 90 degree rotational delaies, so drive of motor efficient just has the loss of big power when these turnover 90 degree transmissions, because of the effect of advancing with this kind driven by motor bicycle is affected, moreover, the design bicycle should turn to the pursuit emphasis with light weight, and individual devices is too much in the said mechanism, and this motor and reducing gear are independently individual, assembly is many and the complexity and the utmost point take up space, and the rider is formed a kind of burden on the contrary.

The purpose of this utility model is to provide a kind of improved bicycle electric power auxiliary drive, and it can reduce the loss that motor is passed on power effectively, and whole requisite space also can dwindle, and it is light and handy to make it transmission efficiency height and volume.

The purpose of this utility model is achieved in that

A kind of bicycle electric power auxiliary drive, it is installed on the five-way pipe place of bicycle, can drive the moving bicycle of nipper dribbling advances, described bicycle electric power auxiliary drive mainly includes: a casing, it is the hollow housing of fluted disc side before being positioned at, and its left and right sides has then respectively provided an axle sleeve; One receiver, it is a saturating empty cylindrical shell and is hubbed in the axle sleeve on casing right side, fluted disc before its right-hand member is fixedly connected, its left end inboard is concaved with the holding part of a circle, and left end outer ring Zhou Ze convexes with one first unidirectional transmission component; One axle, its left end are hubbed in the axle sleeve in casing left side, and right-hand member then is hubbed in the receiver; One motor, it is made up of a stator and a rotor, and this stator is installed on the axle sleeve in casing left side, this rotor then is placed on outside the stator, and its right side centre convexes with a fluted disc, and a perforation is established at this fluted disc center, and this perforation left side is provided with an axle sleeve, and described axle is hubbed in the axle sleeve; One ring piece, its cover is fixed on this axle and just can inserts in the holding part of described receiver, and its outer shroud week is provided with one second unidirectional transmission component, but makes this ring piece one-way tape moving sleeve seat; One rim gear wheel, it is placed on the first unidirectional transmission component of described receiver, but makes this rim gear wheel one-way tape moving sleeve seat; One compound gear, it is coaxial to be provided with a gear wheel and a pinion and to place in the right side of this casing, and this gear wheel is meshed with the fluted disc of this rotor, and pinion then just can be meshed with described rim gear wheel.

In bicycle electric power auxiliary drive, the described first unidirectional transmission component and the second unidirectional transmission component are ratchet, and the ratchet of the described first unidirectional transmission component is that the ratchet of the described second unidirectional transmission component then toward the clockwise direction towards counterclockwise; Ring week and the then corresponding latch that all is equipped with of rim gear wheel interior ring week in the described receiver holding part, the ratchet of described transmission component just can fasten latch, with this, but makes rim gear wheel and this receiver of the unidirectional drive of ring piece clockwise direction.

In bicycle electric power auxiliary drive, the described first unidirectional transmission component and the second unidirectional transmission component are clutch-type, promptly establish all curved grooves respectively in the holding part outer peripheral edges and the described ring piece outer peripheral edges of described receiver, described curved groove one side is to be the gradually dark shape of the degree of depth and to form a stop surface, opposite side then is a press face, wherein, the stop surface of this first unidirectional transmission component all is positioned at the right side of curved groove, and the stop surface of this second unidirectional transmission component then all is positioned at the left side of curved groove; One ball and a spring then are arranged in the described curved groove, make an end contact press face of spring, and the other end then holds ball, therefore, but make this rim gear wheel and this receiver of the unidirectional drive of ring piece clockwise direction.

In the electric power auxiliary drive, the rotor of described motor is the cylindrical shell that is glass plate-like, and its inboard is concaved with a holding part, the all cause magnets of this holding part constitute, just can ccontaining this stator, described stator coils institute by silicon steel sheet to be formed, and makes rotor be subjected to its changes of magnetic field and rotates.

The utility model bicycle electric power auxiliary drive adopts the external rotor electric machine structure, axle is fixed on the axle, it directly is the axle center with the axle, need not turn to transmission (as gear on worm) through 90 degree, therefore on the whole system transmission efficiency, more can reduce the loss of motor torque output than product of the same type; And assemblies such as the utility model motor and reducing gear all are housed in the casing, and whole drive system is closely linked, and whole volume significantly dwindles, and assembly simply and do not take up space has light-weighted advantage most and hides the characteristic of property.

Describe details and working condition thereof in detail below in conjunction with accompanying drawing, other purpose and advantage therefrom also of the present utility model as can be seen according to the concrete device of the preferred embodiment that the utility model proposes.

Fig. 1 is the location drawing according to the bicycle electric power auxiliary drive integral body that the utility model proposes.

Fig. 2 is according to the bicycle electric power auxiliary drive left side exploded perspective view that the utility model proposes.

Fig. 3 is according to the bicycle electric power auxiliary drive right side exploded perspective view that the utility model proposes.

Fig. 4 is according to the longitudinal section after the bicycle electric power auxiliary drive combination that the utility model proposes.

Fig. 5 (A) drives receiver action schematic diagram according to the bicycle electric power auxiliary drive rim gear wheel that the utility model proposes.

Fig. 5 (B) drives receiver action schematic diagram according to the bicycle electric power auxiliary drive ring piece that the utility model proposes.

Fig. 6 (A) drives receiver action schematic diagram according to another preferred embodiment rim gear wheel of the bicycle electric power auxiliary drive that the utility model proposes.

Fig. 6 (B) is the ring piece drive receiver action schematic diagram according to another preferred embodiment of bicycle electric power auxiliary drive that the utility model proposes.

See also Fig. 1, the utility model bicycle electric power auxiliary drive is installed on five-way pipe 1 place of bicycle, and to be installed in pipe 2 battery 3 electric power as the energy that drives, be open and close or predetermined state with a controller 4 may command the utility model, this controller 4 can be arranged on the arbitrary position of bicycle, in the utility model, be placed on the following pipe 5 of bicycle, the utility model can be driven before fluted disc 6 and drive bicycle and advance.

See also Fig. 2 and Fig. 3, the utility model mainly includes:

One casing 10, this casing 10 is hollow housings of fluted disc 6 sides before being positioned at, it is made up of a left shell 11, a main casing 12 and a right shell body 13 bolts, its left shell 11 and right shell body 13 respectively are provided with an

axle sleeve

111 and 131, the solid bearing 112 and 132 of each cover in

axle sleeve

111 and 131, main casing 12 then is separated into first accommodation space 122 and second accommodation space 123 with a dividing plate 121 with its inside left and right side, and this dividing plate 121 is along the perforation 124 that is axially arranged with of

axle sleeve

111 and 131.

One receiver 20, this receiver 20 is arranged in second accommodation space 123 on casing 10 right sides, it is saturating vertically empty, form a cylindrical shell 21 and be articulated in the bearing 132 at right-hand member, these cylindrical shell 21 ends protrude from this right shell body 13 outsides, and fluted disc 6 before affixed, its left end inboard then is concaved with the holding part 22 of a circle, be provided with latch 23 at these holding part 22 periphery rings, 22 outer ring weeks of holding part are provided with one first unidirectional transmission component 24, this first unidirectional transmission component 24 is some ratchets in the present embodiment, and this ratchet is towards counterclockwise.

One axle 30, the left end of this axle 30 are hubbed in the axle sleeve 111 in casing 10 left sides, and right-hand member then is hubbed in the receiver 20, and its two ends then can fixedly connected pedal 7, and ring is established a tenon 31 in the appropriate position of this axle 30.

One motor 40, this motor 40 are positioned at first accommodation space 122 in casing 10 left sides, and it is made up of a stator 41 and a rotor 42; Wherein, described stator 41 coils institute by silicon steel sheet and forms, being provided with a centre bore 411 in the middle of the stator 41 also can be fixedly installed on the axle sleeve 111 of

left shell

11,42 cylindrical shells that are glass plate-like of described rotor, its left side is concaved with a holding part 421, these holding part 421 all cause magnets constitute, it just can ccontaining this stator 41 and is placed on stator 41 outsides, owing to coiling institute by silicon steel sheet, described stator 41 forms, therefore make rotor 42 be subjected to stator 41 changes of magnetic field and rotate, convex with a fluted disc 422 on right side, rotor 42 center in addition, this fluted disc 422 is positioned at right side second accommodation space 123 after passing perforation 124, and establish a perforation 423 in these fluted disc 422 centers, this perforation 423 is provided with an axle sleeve 424 being positioned at holding part 421 1 sides, the intrinsic bearing 425 of cover is sheathed on bearing 425 on the axle 30 again in axle sleeve 424, and this rotor 42 can be hubbed on the axle 30.

One ring piece 50, it is fixed on the axle 30 and just can inserts in the holding part 22 of described receiver 20, be provided with one second unidirectional transmission component 51 its outer shroud week, this second unidirectional transmission component 51 is some ratchets in the present embodiment, these some ratchets are toward the clockwise direction, make the second unidirectional transmission component 51 just can fasten the latch 23 of receiver 20 and one-way tape moving sleeve seat 20 clockwise, in addition, establish draw-in groove 52 at ring piece 50 inner rings, this draw-in groove 52 can with the tenon 31 of axle 30 mutually blocking fix, make ring piece 50 and axle 30 form interlocks.

One rim gear wheel 60, it is nested with on the first unidirectional transmission component 24 of described receiver 20 left ends, its outer shroud week is provided with the gear teeth 61, and ring is provided with latch 62 week in it, but this latch 62 also can fasten the first unidirectional transmission component 24 and the clockwise direction one-way tape moving sleeve seat 20 of receiver 20.

One compound gear 70, its a coaxial gear wheel 71 and pinion 72 of being provided with, and by about two

bearings

73,74 be hubbed in the casing 10 right sides tops; Wherein, this gear wheel 71 just can be meshed with the fluted disc 422 of this rotor 42, and pinion 72 then just can be meshed with the gear teeth 61 of this rim gear wheel 60.

More than be each assembly of the utility model bicycle electric power auxiliary drive the be associated structure and the general introduction of position; Then, the effect that again the utility model institute expectability is reached is presented below:

See also shown in Fig. 5 (A), this figure is the action situation of fluted disc 6 before the utility model motor 40 drives, because the rotor 42 of this motor 40 is to be placed on the stator 41, so when motor 40 rotors 42 are subjected to stator 41 electromagnetic forces and rotate (present embodiment is to clockwise rotate), fluted disc 422 on it also clockwise rotates simultaneously, gear wheel 71 in the compound gear 70 is meshed with this fluted disc 422, this compound gear 70 is also rotated thereupon, but its direction is the inverse clock rotation, when this compound gear 70 rotates, its pinion 72 also rotates, because the gear teeth 61 and pinion 72 effect of being meshed of rim gear wheel 60, this rim gear wheel 60 is also rotated thereupon, its direction then is a clockwise direction, because this compound gear 70 is big,

pinion

71,72 the number of teeth has a proper proportion, makes this compound gear 70 have the motor of making 40 power when transferring to rim gear wheel 60, produces the effect of quite slowing down; When rim gear wheel 60 turned clockwise, this latch 62 can fasten the first unidirectional transmission component 24 and drive receiver 20, the preceding fluted disc 6 that is fixed on this receiver 20 is also clockwise rotated thereupon, and bicycle is advanced.

See also shown in Fig. 5 (B), this figure is the action situation of fluted disc 6 before axle 30 of the present utility model drives, because this axle 30 is arranged in the centre of this casing 10, and described ring piece 50 is fixed on the axle 30, so when axle 30 is subjected to external force (rider steps on the power of pedal 7) and clockwise rotates, this ring piece 50 also rotates thereupon, at this moment, because when ring piece 50 rotates, this second unidirectional transmission component 51 can fasten the latch 23 of receiver 20 and drive receiver 20 and clockwise rotate, the preceding fluted disc 6 that is fixed on this receiver 20 is also clockwise rotated thereupon, and bicycle is advanced.

Therefore by known to above-mentioned, this motor 40 can drive receiver 20 by rim gear wheel 60 with ring piece 50 respectively with axle 30 and clockwise rotate, thereby this preceding fluted disc 6 is also clockwise rotated thereupon, promptly, described receiver 20 is provided with the first unidirectional transmission component 24 and can be respectively with latch 23 fastens mutually with the second unidirectional transmission component 51 of the latch 62 of rim gear wheel 60 and ring piece 50 and produce unidirectional gearing jointly, with fluted disc 6 before driving, bicycle is advanced, reach complementary effect, and when the rotor 42 of this motor 40 clockwise rotates with the preceding fluted disc 6 that is fixed on the receiver 20 by this receiver 20 of rim gear wheel 60 drives, and bicycle is produced when advancing, because the latch 23 in this receiver 20 is when clockwise rotating, can't fasten the second unidirectional transmission component 51 of ring piece 50, axle 30 can not driven; And clockwise rotate with the preceding fluted disc 6 that is fixed on the receiver 20 when this axle 30 drives this receiver 20 by ring piece 50, and bicycle is produced when advancing, because the first unidirectional transmission component 24 in this receiver 20 is when clockwise rotating, also can't fasten the second unidirectional transmission component 51 of ring piece 50, each assembly in rotor 42 and the casing 10 all can not driven, that is to say, when the rider needs auxiliary power, can open this controller 3 and be out state, make motor 40 obtain electric power and the clockwise rotation, after 70 rotations are slowed down through compound gear, driving these rim gear wheel 60 clockwises rotates, latch 62 on it just fastens the first unidirectional transmission component 24 of receiver 20, and fluted disc 6 rotations before driving, bicycle is advanced, at this moment, receiver 20 clockwises rotate, for ring piece 50, the second unidirectional transmission component 51 of 23 pairs of rings of latch piece 50 does not have the effect of fastening and makes ring piece 50 be idling conditions, be before motor 40 drives during fluted disc 6, can't a chain of piece 50 and axle 30 also drive together, and can not disturb the rider to step on the action of pedal 7; Otherwise also in this way, when controller 3 is off status motor 40 and does not start, the rider steps on pedal 7 rotates axle 30 and ring piece 50, and actuating sleeve cylinder base 20 and preceding fluted disc 6, when thereby the drive bicycle advances, the latch 62 of 24 pairs of rim gear wheels 60 of the first unidirectional transmission component of this receiver 20 there is no and fastens and make rim gear wheel 60 be idling conditions, before rider's foot pedal 7 drives during fluted disc 6, casing 10 inner each assembly such as motor 40, compound gear 70 etc. can't be driven together, so can not increase rider's burden; And when fluted disc 6 drives bicycles and advances before rider and the utility model together drive, most roadlock all can by motor 40 of the present utility model before driving during fluted disc 6 institute overcome, in other words, the rider is when travelling the situation on identical road surface, only just can allow bicycle advance, reach the purpose of process auxiliary drive with less exerting oneself.

See also Fig. 6 (A), (B) shown in, Fig. 6 (A) and Fig. 6 (B) are another preferred embodiment of the utility model, wherein, above-mentioned rim gear wheel 60 is by rim gear wheel 60 ' replacement, be provided with in this rim gear wheel 60 ' its outer shroud week the gear teeth 61 ', and interior ring Zhou Zewei is provided with latch, above-mentioned in addition receiver 20 is replaced by receiver 80 and ring piece 90 respectively with 50 of ring pieces, and this receiver 80 and ring piece 90 and above-mentioned receiver 20, the difference of ring piece 50 is that then this receiver 80 is not provided with latch at holding part 81 peripheries, its first unidirectional transmission component 82 then is the structure of a general clutch-type with the second unidirectional transmission component 91 of ring piece 90, promptly this first unidirectional transmission component 82 and the second unidirectional transmission component 91 are to be provided with the curved grooves 821 and 911 of number in holding part 81 outer peripheral edges of described receiver 80 and described ring piece 90 outer peripheral edges respectively, described curved groove 821 and 911 1 sides all are to be the gradually dark shape of the degree of depth and to form a stop surface 821a and a 911a, opposite side then is press face 821b and 911b, wherein, the stop surface 821a of this first unidirectional transmission component 82 all is positioned at the right side of curved groove 821, and the stop surface 911a of this second unidirectional transmission component 91 then all is positioned at the left side of curved groove 911; One ball 822 and 912 and one spring 823 and 913 are arranged in described curved groove 821 and 911, make this spring 823 and 913 1 end contact press face 812b, 911b, the other end then holds ball 822 and 912, by this, make this rim gear wheel 60 ' with ring piece 90 when the one-way movement, be subjected to this ball 822 and 912 to be equipped in the effect of stop surface 821a and 911a, and only can this receiver 80 of unidirectional drive, shown in Fig. 6 (A), be the situation of rim gear wheel 60 ' unidirectional (clockwise) drive receiver 80; Then drive the situation of receiver 80 shown in Fig. 6 (B) for ring piece 90 unidirectional (clockwise), so, also can reach the equivalent purpose of unidirectional transmission, and the direction of the direction of this rim gear wheel 60 ' drive receiver 80 and this ring piece 90 drive receivers 80 is all clockwise direction.

Illustrated that more than those of ordinary skill in the art can make various modifications and variations to this after having understood spirit of the present utility model according to the preferred embodiment that the utility model proposes, and unlikely disengaging scope of the present utility model.

Claims

1. bicycle electric power auxiliary drive, it is installed on the five-way pipe place of bicycle, can drive the moving bicycle of nipper dribbling and advance, and it is characterized in that described bicycle electric power auxiliary drive mainly includes:

One casing (10), it is the hollow housing of fluted disc side before being positioned at, its left and right sides has then respectively provided an axle sleeve (111) and (131);

One receiver (20,80), it is a saturating empty cylindrical shell and is hubbed in the axle sleeve (131) on casing right side, fluted disc (6) before its right-hand member is fixedly connected, its left end inboard is concaved with the holding part (22) of a circle, and left end outer ring Zhou Ze convexes with one first unidirectional transmission component (24,82);

One axle (30), its left end are hubbed in the axle sleeve (111) in casing (10) left side, and right-hand member then is hubbed in the receiver (20,80);

One motor (40), it is made up of a stator (41) and a rotor (42), this stator (41) is installed on the axle sleeve (111) in casing (10) left side, this rotor (40) then is placed on outside the stator (41), its right side centre convexes with a fluted disc (422), a perforation (423) is established at this fluted disc (422) center, and this perforation (423) left side is provided with an axle sleeve (424), and described axle (30) is hubbed in the axle sleeve (424);

One ring piece (50,90), its cover is fixed in the holding part (22 that this axle (30) went up and just can insert described receiver (20,80), 81) in, be provided with one second unidirectional transmission component (51,91) its outer shroud week, make this ring piece (50,90) but one-way tape moving sleeve seat (20,80);

One rim gear wheel (60,60 '), it is placed on the first unidirectional transmission component (24,82) of described receiver (20,80), makes this rim gear wheel (60,60 ') but one-way tape moving sleeve seat (20,80);

One compound gear (70), its coaxial gear wheel (71) that is provided with places in the right side of this casing (10) with a pinion (72), this gear wheel (71) is meshed with the fluted disc (422) of this rotor (42), and pinion (72) then just can be meshed with described rim gear wheel (60).

2. bicycle electric power auxiliary drive as claimed in claim 1, it is characterized in that, the described first unidirectional transmission component (24) is a ratchet with the second unidirectional transmission component (51), and the ratchet of the described first unidirectional transmission component (24) is that the ratchet of the described second unidirectional transmission component (51) then toward the clockwise direction towards counterclockwise; Ring week and then corresponding latch (23) and (62) of all being equipped with of rim gear wheel (60) interior ring week in described receiver (20) holding part (22), the ratchet of described transmission component (24) and (51) just can fasten latch (23) and (62), with this, make rim gear wheel (60) and encircle piece (50) but this receiver of the unidirectional drive of clockwise direction (20).

3. bicycle electric power auxiliary drive as claimed in claim 1, it is characterized in that, the described first unidirectional transmission component (82) is a clutch-type with the second unidirectional transmission component (91), promptly establish all curved grooves (821) and (911) respectively in holding part (81) outer peripheral edges and described ring piece (90) outer peripheral edges of described receiver (80), described curved groove (821) and (911) one sides are to be the gradually dark shape of the degree of depth and to form a stop surface (821a) and (911a), opposite side then is a press face (821b) and (911b), wherein, the stop surface (821a) of this first unidirectional transmission component (82) all is positioned at the right side of curved groove (821), and the stop surface (911a) of this second unidirectional transmission component (91) then all is positioned at the left side of curved groove (911); One ball (822) and (912) then are arranged in described curved groove (821) and (911) with a spring (823) and (913), make an end contact press face (821b) of spring (823) and (913) and (911b), the other end then holds ball (822) and (912), therefore, make this rim gear wheel (60) and encircle piece (90) but this receiver of the unidirectional drive of clockwise direction (80).

4. bicycle electric power auxiliary drive as claimed in claim 1, it is characterized in that, the rotor (42) of described motor (40) is the cylindrical shell that is glass plate-like, its inboard is concaved with a holding part (421), the all cause magnets of this holding part (421) constitute, just can ccontaining this stator (41), described stator (41) coils institute by silicon steel sheet to be formed, and makes rotor (42) be subjected to its changes of magnetic field and rotates.