CN203172842U

CN203172842U - Center motor arranged on normal bicycle and having coaster braking function

Info

Publication number: CN203172842U
Application number: CN 201320192588
Authority: CN
Inventors: 王清华; 顾培元; 贺先兵
Original assignee: SUZHOU BAFANG MOTOR TECHNOLOGY Co Ltd
Current assignee: SUZHOU BAFANG MOTOR TECHNOLOGY Co Ltd
Priority date: 2013-04-16
Filing date: 2013-04-16
Publication date: 2013-09-04
Anticipated expiration: 2023-04-16

Abstract

The utility model discloses a center motor arranged on a normal bicycle. The center motor comprises a motor casing fixed on a five-way pipe of a bicycle frame, wherein a magnetic ring is fixedly connected on a middle axle of the bicycle, and a sensing hall corresponding to the magnetic ring is fixedly arranged on the outer portion of the motor casing. A motor shaft in transmission connection with an outer ring of the bicycle, a machine core assembly surrounded on the outer side of the motor shaft, an inner ring II which is sleeved on the outer side of the motor shaft and located between the machine core assembly and the motor shaft and has a gap reserved between the machine core assembly and the inner ring II, a rolling ball II rotatably arranged between the machine core assembly and the inner ring II, a driving frame II capable of driving the rolling ball II, a controller electrically connected with the sensing hall and the machine core assembly, and a sucker electrically connected with the controller, provided with a coil inside and used for sucking the driving frame II to adjust the position of the driving frame II are arranged in the motor casing. The center motor of the bicycle has a bicycle coaster braking function.

Description

Be installed on the ordinary bicycle and the band mid-motor of function of stopping

Technical field

The utility model relates to a kind of bicycle driving device, is specifically related to a kind of mid-motor that is installed on the ordinary bicycle.

Background technology

At present, the mid-motor of installing on the ordinary bicycle does not have the function of stopping, and that is to say, when driving bicycle when motor operation and advancing, the bicyclist steps on bicycle pedal backward can not make the motor outage.

The utility model content

The utility model purpose is: at the problems referred to above, provide a kind of mid-motor on the ordinary bicycle and that have the function of stopping that is applied in.

The technical solution of the utility model is: a kind of be installed on the ordinary bicycle and the band mid-motor of function of stopping, comprise: be located in the axis in the frame five-through pipe of bicycle, fixed cover is located at the outer inner ring I of axis, be around in outside the inner ring I, and and the inner ring I between have the outer ring in gap, rollably be arranged on the ball I in the gap between inner ring I and the outer ring, being used for stirring the gap of ball I between inner ring I and outer ring rolls, to adjust the Shifting rack I of ball I position, contact the damping piece that cooperates with the Shifting rack I, and be fixed on the chain wheel on the outer ring;

Be formed with in the gap between described inner ring I and the outer ring when described ball I rolls in it, described outer ring and inner ring I can be fixed together cw wedge groove and conter clockwise wedge groove,

Be fixedly connected with a motor housing on the described frame five-through pipe, be fixedly connected with the magnet ring that can thereupon rotate on the described axis, described motor housing external stability is provided with the induction Hall corresponding with described magnet ring,

The inside of described motor housing is provided with: be in transmission connection with described outer ring, to drive outer ring motor rotating axle, be trapped among outside the described motor shaft, the rotation of drive motor axle, and and there is the cartridge assemblies in gap between this motor shaft, fixed cover is located at outside the described motor shaft, between cartridge assemblies and motor shaft, and and cartridge assemblies between have the inner ring II in gap, rollably be arranged on the ball II in the gap between cartridge assemblies and the inner ring II, can stir the ball II to adjust the Shifting rack II of ball II position, the controller that all is electrically connected with described induction Hall and cartridge assemblies, and be electrically connected with controller, be provided with coil in it, be used for drawing the Shifting rack II to adjust the sucker of Shifting rack II position;

Together wedge groove is formed with in the gap between described inner ring II and the cartridge assemblies when described ball II rolls in it, described inner ring II and cartridge assemblies can be fixed.

As preferably:

Be provided with the Shifting rack retracing spring between described motor shaft and the Shifting rack II.

Described Shifting rack II can be set in outside the motor shaft axially slidably, described sucker be enclosed within motor shaft outer and with the motor housing relative fixed.

Described motor shaft is in transmission connection by speed reduction gearing and described outer ring.

The utility model has the advantages that: the ordinary bicycle that the mid-motor of the utility model is installed can be realized function electronic, that brake backward forward.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described:

Fig. 1 is the structural representation (cutaway view) of the utility model embodiment;

Fig. 2 is the utility model embodiment part sectional view one;

Fig. 3 is the utility model embodiment part sectional view two;

Wherein: 1-frame five-through pipe, 2-axis, 3-inner ring I, 4-outer ring, 5-ball I, 6-Shifting rack I, 7-damping piece, 8-chain wheel, the 9-magnet ring, 10-responds to Hall, 11-motor housing, 12-motor shaft, the 13-cartridge assemblies, 14-inner ring II, 15-ball II, 16-Shifting rack II, the 17-controller, 18-sucker, 19-wedge groove, 20-Shifting rack retracing spring, 21-cw wedge groove, 22-conter clockwise wedge groove, 23-coil.

The specific embodiment

As shown in Figure 1, present embodiment provides this be installed on the ordinary bicycle and the stop mid-motor of function of band comprise: be located in the axis 2 in the frame five-through pipe 1, fixed cover is located at the inner ring I 3 outside the axis 2, be around in outside the inner ring I 3, and and the inner ring I between have the gap outer ring 4(the two be not fixed together), rollably be arranged on the ball I 5 in the gap between inner ring I 3 and the outer ring 4, can stir in the gap of ball I 5 between inner ring I 3 and outer ring 4 and roll, can rotate with the Shifting rack I 6(Shifting rack I of adjusting ball I 5 positions), contact the damping piece 7 that cooperates with Shifting rack I 6, and be fixed on the chain wheel 8 on the outer ring 4.

As shown in Figure 2, together cw wedge groove 21 and conter clockwise wedge groove 22 are formed with in the gap between described inner ring I 3 and the outer ring 4 when described ball I 5 rolls in it, described outer ring 4 and inner ring I 3 can be fixed.

Refer again to shown in Figure 1ly, be fixedly connected with a motor housing 11 on the described frame five-through pipe 1, be fixedly connected with the magnet ring 9 that can thereupon rotate on the described axis 2, described motor housing 11 external stabilities are provided with the induction Hall 10 corresponding with described magnet ring 9.

Still with reference to shown in Figure 1, the inside of described motor housing 11 is provided with: be in transmission connection by speed reduction gearing and described outer ring 4, to drive outer ring 4 motor rotating axles 12, be trapped among outside the described

motor shaft

12,12 rotations of drive motor axle, and and have between this motor shaft the gap cartridge assemblies 13(the two be not completely fixed together), fixed cover is located at outside the described motor shaft 12, between cartridge assemblies 13 and motor shaft 12, and and cartridge assemblies 13 between also have the inner ring II 14 in gap, rollably be arranged on the ball II 15 in the gap between cartridge assemblies 13 and the inner ring II 14, can stir ball II 15 to adjust the Shifting rack II 16 of ball II 15 positions, the controller 17 that all is electrically connected with described induction Hall 10 and cartridge assemblies 13, and be electrically connected with controller 17, be provided with coil 23 in it, the sucker 18 corresponding with described Shifting rack II 16.Described Shifting rack II 16 can be set in outside the motor shaft 12 axially slidably, described sucker 18 be enclosed within motor shaft 12 outer and with motor housing 11 relative fixed.And, be provided with Shifting rack retracing spring 20 between described motor shaft 12 and the Shifting rack II 16.

As shown in Figure 3, together wedge groove 19 is formed with in the gap between described inner ring II 14 and the cartridge assemblies 13 when described ball II 15 rolls in it, described inner ring II 15 and cartridge assemblies 13 can be fixed.

After adopting said structure, the ordinary bicycle that the mid-motor of present embodiment is installed can be realized purely electronicly riding, power-assisted is ridden, coaster brake three big functions, shows in conjunction with Fig. 1, Fig. 2 and Fig. 3, and its concrete principle of work is described below:

When outer ring 4 initiatively and when rotating along clockwise direction forward (bicycle advances), Shifting rack I 6 is motionless under the effect of damping piece 7, and ball I 5 is also motionless and not by wedging, inner ring I 3 and outer ring 4 are in released state, and namely inner ring I 3 is motionless.When inner ring I 3 is initiatively also rotated forward along clockwise direction, just begun Shifting rack I 6 owing to the existence of damping piece 7 motionless (ball I 5 is also motionless), after very short time, owing to the rotation of inner ring I 3 makes ball I 5 be dialled to inner ring I 3 and outer ring in 4 the cw wedge groove 21, thereby outer ring 4 is fixed with inner ring I 3 is in the same place, inner ring I 3 will drive outer ring 4 and clockwise rotate to previous crops together, at this moment Shifting rack I 6 is rotated forward together, 7 motions of Shifting rack I 6 relative damping parts.When inner ring I 3 is initiatively also rotated backward in the counterclockwise direction, the same principle, in conter clockwise wedge groove 22, inner ring I 3 will drive outer ring 4 and rotate counterclockwise together ball I 5 by wedging.

Pure electronic riding: 12 rotations of electrical power rear motor axle, drive outer ring 4 by speed reduction gearing and initiatively clockwise rotate, ball I 5 is not by wedging, and inner ring I 3 and outer ring 4 are in the state of being separated from each other, and namely inner ring I 3 is motionless.Owing to captive joint with chain wheel 8 in outer ring 4, drive trailing wheel by chain and move forward, namely battery-driven car moves forward.

Power-assisted is ridden: pin is stepped on crank makes axis 2 clockwise rotate to previous crops, inner ring I 3 just also clockwise rotates with axis 2, it is motionless owing to the existence of damping piece 7 just to have begun Shifting rack I 6, after very short time, owing to the rotation of inner ring I 3 makes that ball I 5 is dialled in cw wedge groove 21, clockwise rotate to previous crops together thereby drive 2 outer rings, at this moment Shifting rack I 6 clockwise rotates to previous crops together, 7 motions of Shifting rack I 6 relative damping parts.Simultaneously, be connected magnet ring 9 on the axis 2 with axis 2 clickwise forward, induction Hall 10 constantly provides induced signal forward, and controller 17 obtains it being transferred to motor behind the induced signal moves electrical power forward, finishes power-assisted and rides.

Coaster brake: bicycle moves (this moment, motor was in running order) forward, at this moment pin is stepped on crank and is moved certain angle (rotating counterclockwise) backward, axis 2 rotates counterclockwise certain angle backward with inner ring I 3, magnet ring 9 rotates backward, induction Hall 10 is sensed signal that magnet ring 9 rotates backward and it is transferred to controller 17, and controller 17 obtains being transferred to electromechanics and motor being cut off the power supply immediately behind this signal.Pin is stepped on crank and is continued operation backward, Shifting rack I 6 in the conter clockwise wedge groove 22 of another side, rotates counterclockwise 5 groups of ball I thereby drive outer ring 4 together backward, and at this moment chain wheel 8 also rotates counterclockwise backward with chain, thereby the device of stopping on the drive trailing wheel, the function of stopping realizes.Need to prove, motor is in a period of time of just having cut off the power supply, cartridge assemblies 13 and motor shaft 12 make motor shaft 12 outputs rotate torsion owing to effect of inertia also can be rotated further, thereby increase the workload of the device of stopping greatly, wherein, the quality of cartridge assemblies 13 makes that its effect of inertia is particularly evident greatly, if can make motor shaft 12 detachment machine core assemblies 13 in a flash, will reduce the inertia power output of motor shaft 12 greatly, realize stopping of bicycle better, and present embodiment just can make this function be achieved: when magnet ring 9 is made left-hand revolution backward with axis 2, the signal that controller 17 obtains backward makes motor cut off the power supply immediately on the one hand, give the coil in the sucker 18 23 energisings on the other hand, thereby coil 23 energising posterior suckers 18 have suction absorption Shifting rack II 16 makes Shifting rack II 16 relative motor shafts 12 move axially (Shifting rack retracing spring 20 pressurizeds shorten), after sucker 18 holds Shifting rack II 16, Shifting rack II 16 can drive ball II 15 and leave wedge groove 19, cartridge assemblies 13 realizes separating with inner ring II 14 like this, just prime power (cartridge assemblies 13) is separated with transport sector (motor shaft 12).

Generally, coil 23 is in off-position, and Shifting rack II 16 resets under 20 effects of Shifting rack retracing spring.Behind the electrical power, cartridge assemblies 13 rotations, ball II 15 falls in the wedge groove 19, thereby cartridge assemblies 13 and motor shaft 12 are fixed mutually, drives motor shaft 12 rotations.

Certainly, above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow people can understand content of the present utility model and implements according to this, can not limit protection domain of the present utility model with this.All equivalent transformation or modifications of doing according to the spiritual essence of the utility model main technical schemes all should be encompassed within the protection domain of the present utility model.

Claims

One kind be installed on the ordinary bicycle and the band mid-motor of function of stopping, it is characterized in that it comprises: be located in the axis (2) in the frame five-through pipe (1) of bicycle, fixed cover is located at the outer inner ring I (3) of axis (2), be around in outside the inner ring I (3), and and the inner ring I between have the outer ring (4) in gap, rollably be arranged on the ball I (5) in the gap between inner ring I (3) and outer ring (4), being used for stirring the gap of ball I (5) between inner ring I (3) and outer ring (4) rolls, to adjust the Shifting rack I (6) of ball I (5) position, contact the damping piece (7) that cooperates with Shifting rack I (6), and be fixed on the chain wheel (8) on the outer ring (4);

Be formed with in the gap between described inner ring I (3) and outer ring (4) when described ball I (5) rolls in it, described outer ring (4) and inner ring I (3) can be fixed together cw wedge groove (21) and conter clockwise wedge groove (22),

Be fixedly connected with a motor housing (11) on the described frame five-through pipe (1), be fixedly connected with the magnet ring (9) that can thereupon rotate on the described axis (2), described motor housing (11) external stability is provided with the induction Hall (10) corresponding with described magnet ring (9)

The inside of described motor housing (11) is provided with: be in transmission connection with described outer ring (4), to drive outer ring (4) motor rotating axle (12), be trapped among outside the described motor shaft (12), drive motor axle (12) rotation, and and there is the cartridge assemblies (13) in gap between this motor shaft, fixed cover is located at outside the described motor shaft (12), be positioned between cartridge assemblies (13) and the motor shaft (12), and and cartridge assemblies (13) between have the inner ring II (14) in gap, rollably be arranged on the ball II (15) in the gap between cartridge assemblies (13) and the inner ring II (14), can stir ball II (15) to adjust the Shifting rack II (16) of ball II (15) position, the controller (17) that all is electrically connected with described induction Hall (10) and cartridge assemblies (13), and be electrically connected with controller (17), be provided with coil (23) in it, be used for drawing Shifting rack II (16) to adjust the sucker (18) of Shifting rack II position;

Together wedge groove (19) is formed with in the gap between described inner ring II (14) and the cartridge assemblies (13) when described ball II (15) rolls in it, described inner ring II (15) and cartridge assemblies (13) can be fixed.
According to claim 1 be installed on the ordinary bicycle and the band mid-motor of function of stopping, it is characterized in that: be provided with Shifting rack retracing spring (20) between described motor shaft (12) and the Shifting rack II (16).
According to claim 1 and 2 be installed on the ordinary bicycle and the band mid-motor of function of stopping, it is characterized in that: described Shifting rack II (16) can be set in outside the motor shaft (12) axially slidably, described sucker (18) be enclosed within motor shaft (12) outer and with motor housing (11) relative fixed.
According to claim 1 and 2 be installed on the ordinary bicycle and the band mid-motor of function of stopping, it is characterized in that: described motor shaft (12) is in transmission connection by speed reduction gearing and described outer ring (4).