CN2489847Y - Two-wheel electric toy motorcycle - Google Patents

Abstract

The utility model relates to a two-wheel electric toy motorcycle, which comprises a motorcycle body, front wheels with forked stand and rear wheels with a driving device. The front wheels and the rear wheels are arranged above the motorcycle body. The front wheel device includes a steering device which can control the turning of the toy motorcycle; the rear wheel device includes an inertia equilibrator which can keep the balance of the motorcycle in motor process. In the course of driving, the balance of the motorcycle body can be kept and the left and right turning can be realized. The motorcycle can be driven and turned like a real one. The flying wheels of the rear wheels make a burst of roaring sound just the same with the sound generated by a motorcycle motor in operation.

Description

Two take turns the electronic toy motorcycle

The utility model relates to a kind of electronic toy, especially the electronic toy motorcycle.

Now, the electronic toy motorcycle of selling on the market, what generally adopt is the version of three-wheel or four-wheel, is about to motorcycle and is designed to two trailing wheels or increases by two attached wheels that help again to keep the balance of car body between the front and back wheel of motorcycle, makes its even running on the ground.But the motorcycle profile of said structure and real motorcycle profile have very big difference, make toy motorcycle lack the sense of reality, and therefore user's impression when operation does not cause consumers in general's interest and desire to purchase less than the sensation of driving motorcycle.Why real two-wheeled motorcycle can travel with two wheels, is the person for driving a car in the process of moving to the control of motorcycle, and the person for driving a car constantly keeps the balance of motorcycle by the adjustment to center of gravity and steering wheel in motion process.And existing electronic toy motorcycle does not have to guarantee the device of motorcycle balance, so toy motorcycle can not utilize two wheels to travel.And above-mentioned toy motorcycle is because the restriction of structure, can only be at comparatively smooth road traveling, and during as the road surface of some little obstacles or calixconcavity injustice, toy motorcycle just can not use, and this has also limited the scope of application of toy.

It is true to nature that the purpose of this utility model provides a kind of moulding, has only forward and backward two wheels to travel as real motorcycle, can keep balance automatically in motion, and the electronic toy motorcycle that can turn.

Another one purpose of the present utility model provides a kind of step, obstacle crossed over, and can be applicable to the toy motorcycle on various road surfaces.

Another one purpose of the present utility model is to protect the transmission mechanism of machine that it can be damaged because of overload.

The utility model comprises car body, have before forked standard front-wheel and have the trailing wheel of drive unit, front and rear wheel is installed on the car body, described front-wheel is provided with transfer, described trailing wheel is provided with the inertia balance device.

Described front-wheel steer device comprises and is fixed on turning to gear and can controlling front-wheel and rotate the four bar linkage steering engine structure of car body that the four bar linkage steering engine structure links together by preceding forked standard and front-wheel, turns to gear by poke rod pivot joint four bar linkage steering engine structure.

Described inertia balance mechanism is arranged on the inside of trailing wheel, comprise left wheel hub, right wheel hub, axletree, planet carrier, several rows star-wheel, ring gear, sun gear and flywheel, left and right sides wheel hub links to each other, planet carrier links to each other with left wheel hub, planet carrier is provided with the axle that planetary gear can be installed, planetary gear is installed in rotation on the axle of planet carrier, the tooth of planetary gear is meshed with the tooth of ring gear, ring gear is fixed on the axletree, sun gear is arranged on the center of ring gear and is meshed with planetary gear, and sun gear links to each other with flywheel.

In order to make the utility model can be applicable to various road surfaces, respectively be provided with shockproof mechanism at front and rear wheel.

In order to protect the transmission mechanism can be because of overload is not damaged, the utility model transmission mechanism be provided with clutch.

The utility model can keep principle for balance to be when travelling and turn owing to be provided with the flywheel that can rotate at a high speed and be provided with the four bar linkage steering engine structure at front-wheel in the trailing wheel of toy motorcycle.The drive unit of toy motorcycle also drives the flywheel that is arranged on trailing wheel inside and rotates at a high speed when driving the trailing wheel rotation.Because the flywheel such as the same gyro of high speed rotation, according to the automatic positioning principle of gyro, when flywheel departed from original axial location, flywheel itself can produce a rightabout moment make it recover original axial location.Therefore work as toy motorcycle in operation or turning process, during the car body run-off the straight, flywheel also tilts thereupon, so flywheel can produce a moment of pointing to original axial location, this moment on car body, makes car body recover original stand up position by wheel action.The utility model is when the four bar linkage steering engine structure of front-wheel setting can make front-wheel rotate, move a certain distance to direction away from turning center, can guarantee that like this toy motorcycle is when turning, car body slopes inwardly, to offset the centrifugal force of turning and being produced, after turning, front-wheel recovers original position again, and car body recovers erectility under the effect of flywheel, continues to travel.By the setting of above-mentioned flywheel and four bar linkage steering engine structure, can make toy motorcycle travel and turn as real motorcycle.

The utility model is owing to increased inertia balance mechanism and can control the steering mechanism of rotation in the front-wheel setting in the trailing wheel of toy motorcycle, make toy motorcycle in the process of moving, can keep the balance of car body automatically and can do about the action of turning, travel and turn as real motorcycle, and the flywheel of trailing wheel is in rotation process, send a burst of roar, the sound as motorcycle engine is sent when moving makes the utility model have more effect true to nature.The utility model is owing to the anti-vibration structure that is provided with on front and back wheel, make toy motorcycle can cross over step or obstacle that some are little, also can on the road surface of calixconcavity injustice, travel, toy can be operated under various road environment, toy motorcycle is under the effect of shockproof mechanism, car body and the person for driving a car above it constantly pitch, and make that the utility model operation is more true to nature, stimulate.The utility model is provided with clutch on transmission mechanism, can play a protective role to toy, and when toy met external force or big obstacle, the suffered moment of gear was bigger, slipping of clutch, thus the transmission mechanism that has guaranteed machine is not destroyed.

Below in conjunction with accompanying drawing the utility model is elaborated:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of the utility model front-wheel steer device;

Fig. 3 is the structural representation of the utility model front-wheel steer device gear;

Fig. 4 is the structural representation of the utility model front-wheel four bar linkage steering engine structure.

Fig. 5 is the structural representation of the utility model front-wheel steer device shockproof mechanism;

Fig. 6 is the scheme of installation of the utility model front-wheel steer device shockproof mechanism;

Fig. 7 is a rear wheel drive installation drawing of the present utility model;

Fig. 8 is the utility model trailing wheel inertia balance mechanism structure schematic diagram;

Fig. 9 is the motor reduction gearbox structural representation of rear wheel drive device of the present utility model;

Figure 10 is the utility model trailing wheel shockproof mechanism figure.

As shown in Figure 1, the utility model comprises front-wheel 2, the trailing wheel 3 that drive unit 4 is housed and the car body 1 that has preceding forked standard 21, front and rear wheel 2,3 is installed on the car body 1, be provided with the inertia balance mechanism 42 that can make car body 1 keep balance in operation at trailing wheel 3, be provided with transfer 5 at front-wheel 2, turn about transfer 5 actings in conjunction of the inertia balance device 42 of trailing wheel and front-wheel make toy motorcycle to do; Car body 1 is involutory assembled by two halfbodies 11,12, also can be provided with the cyclist integratedly on the car body 1, and it can make toy look to have more effect true to nature.The utility model also is provided with remote control (not drawing among the figure), by the control stick of remote control can control toy motorcycle startup, stop, travelling and turn.As shown in Figure 2, front-wheel steer device 5 is by being fixed on turning to gear 51, can controlling four bar linkage steering engine structure 52 and the front-wheel shockproof mechanism 53 that front-wheel rotates and form of car body 1; Four bar linkage steering engine structure 52 links together with front-wheel 2 by preceding forked standard 21, turns to gear 51 to be fixed on the car body 1 and to drive four bar linkage steering engine structure 52 by poke rod 514 and rotates, and front-wheel 2 is rotated, and turns thereby drive toy motorcycle; Before front-wheel shockproof mechanism 53 is arranged on the forked standard, when front-wheel 2 when meeting step or obstacle, the front-wheel shockproof mechanism shrinks automatically to reduce the impact to front-wheel 2.As shown in Figure 3, turn to gear to comprise motor 511, motor cabinet 512, reduction box 515, motor shift fork 517, two circular arc clutch slide blocks 518, the gear 519 that has clutch sleeve 1, some reduction gearing, output shaft 513 and poke rod 514, motor cabinet 512 is fixed on the car body 1, motor 511 is installed on the motor cabinet 512, motor shift fork 517 is installed on the motor shaft, motor shift fork 517 stretches out two driving levers 5171, slide block 518 is provided with porose 5181, slide block 518 is slidably mounted on the driving lever 5171 of motor shift fork by hole 5181, slide block 518 is installed in the clutch sleeve II519, and clutch sleeve II519 and speed reduction gear box fix; The output 513 of reduction box 515 links to each other with poke rod 514 usefulness keys.Motor 511 can carry out left-hand rotation or the right-hand rotation of forward and backward with the control toy motorcycle.When motor 511 rotates, motor shift fork 517 drives clutch slide block 518 and rotates together, slide block 518 under action of centrifugal force to external compression clutch sleeve II519, rely on the frictional force between slide block 518 and the clutch sleeve II519 to drive the rotation of clutch sleeve II519 gear, drive poke rod 514 swings after slowing down by reduction gearing; Be obstructed or when turning in place, reduction gearing stops operating when turning to, clutch slide block 518 skids with clutch sleeve II519, relatively rotates between the two, ensures that motor 511 and gear are not damaged, and protect the function of whole gear 51.Be quadric chain of the present utility model as shown in Figure 4, because real motorcycle cyclist's when turning health can be to the inclination of turning center direction, to offset the centrifugal force owing to motorcycle turns was produced; Toy motorcycle is because unmanned, and therefore the center of gravity of car body can't be regulated when turning, and can cause car body to tilt to the outside of turning circular arc as the turning structure on the direct employing motorcycle, causes overturning easily.In view of this front-wheel 2 of the present utility model adopts four bar linkage steering engine structure 52, forked standard 21, stationary links 521 and two interlock plates 522 before comprising, stationary links 511 is fixed on the car body 1, one end of interlock plate 522 is connected with stationary links 521 by two screws, the other end links to each other with preceding forked standard 21 with two screws, but interlock plate relative fixed connecting rod 521 and preceding forked standard 21 rotate; After the shift fork piece 5221 that each interlock plate 522 is provided with, interlock plate 522 were installed with stationary links 521, preceding forked standard 21, two shift fork pieces 5221 constituted shift fork 523, and above-mentioned poke rod 514 is arranged in the middle of the shift fork 523.Like this, two interlock plates 522, stationary links 521 and preceding forked standards 21 constitute a quadric chain together, one end of poke rod 514 is connected in and turns on the gear reduction gearbox output shaft 513, the other end is arranged in the middle of the shift fork 523, when under poke rod 514 is turning to the drive of gear 51, swinging, stir shift fork 523, because stationary links 521 maintains static with car body 1, therefore forked standard 21 swings under the drive of interlock plate 522 before, turns to the go to action of realizing toy car thereby drive front-wheel 2.When turning, forked standard 21 moved to the direction away from the radius of turn center before interlock plate 522 drove, and also drove front-wheel 2 deflection certain angles simultaneously, made toy motorcycle when turning, and car body 1 tilts to turning center, to offset the centrifugal force that causes because of turning.Front-wheel shockproof mechanism 53 is shown in Fig. 5,6, forked standard 21, preceding fork shaft 531, damping spring 532, spring cup 533, front axle 534 and shaft coupling 535 before comprising, preceding fork shaft 531 is inserted in the preceding forked standard 21, preceding fork shaft 531 is provided with step, the position that is used for fixing damping spring 532, the hole and the shaft coupling 535 of forked standard 21 fixed before one end of preceding fork shaft 531 passed, and the other end links to each other with damping spring 532; Front axle 534 passes front-wheel 2 and fixes with shaft coupling 535; One end of damping spring 532 is inserted at preceding fork shaft 534 and before withstanding on the step of fork shaft, the other end is installed in the groove of spring cup 533, spring cup 533 usefulness screws link to each other with preceding forked standard 21 and damping spring 532 is pressed into before in the hole of forked standard 21.When front-wheel 2 is subjected to impacting, fork shaft 531 before impulsive force is delivered to by shaft coupling 535, preceding fork shaft 531 compressing damping springs 532 shrink, thereby sponge impulsive force, play the effect of cushioning balance, when impulsive force disappeared, front-wheel 2 recovered original position again under the effect of damping spring 532.Shown in Figure 7 is rear wheel drive device 4 of the present utility model, comprise motor reduction gearbox 41, support 44, trailing wheel inertia balance mechanism 42 and trailing wheel shockproof mechanism 43, the arranged outside of one end of motor reduction gearbox 41 and support 44 has an outwards outstanding rotating shaft, and car body 1 about two sides respectively have a circular hole corresponding with it, after rotating shaft was installed in hole on the car body 1, motor reduction gearbox 41 and support 44 can be around car body 1 swings; The other end of motor reduction gearbox 41 and support 44 respectively is provided with porose, axletree 33 is installed on the hole of motor reduction gearbox 41 and support 44 after passing trailing wheel 3, trailing wheel 2 is arranged on the centre of motor reduction gearbox 41 and support 44, the output shaft of motor reduction gearbox links to each other with trailing wheel 2 by spline, perhaps with screw the two is linked together.When motor reduction gearbox 41 and support 44 during around car body 1 swing, the trailing wheel 3 that drives the other end swings up and down; One end of trailing wheel shockproof mechanism 43 is arranged on the car body 1 rotationally, the other end is installed in rotation on motor reduction gearbox 41 and the support 44, and when trailing wheel 3 was subjected to impacting, upwards the spring of shockproof mechanism was compressed in swing, after impacting disappearance, trailing wheel 3 can recover the origin-location under the effect of spring.Inertia balance mechanism 42 as shown in Figure 8, be arranged on the inside of trailing wheel 3, it can make toy motorcycle when travelling or turn, car body can not fall down and can reply upright position, it comprises left wheel hub 31, right wheel hub 32, axletree 33, ring gear 421,3 planetary gears 422, sun gear 423, planet carrier 424, centrifugal clutch 425,426, fly frame 428 and flywheel 427, left and right sides wheel hub 31,32 usefulness screws link together, planet carrier 424 links together with left wheel hub 31 usefulness screws, planet carrier 424 is provided with the axle that planetary gear can be installed, the axle that three planetary gears 422 are arranged on planet carrier is gone up and can be pivoted, ring gear 421 and axletree 33 can not relatively rotate between the two guaranteeing to be tightly fixed, the tooth engagement of the tooth of 3 planetary gears 422 and ring gear 421, the center of ring gear 421 is provided with sun gear 423, the tooth of sun gear 423 is meshed with the tooth of planetary gear 422, ring gear 421, planetary gear 422 constitutes a speeder with sun gear 423, be provided with spline on the sun gear 423, spline matches with centrifugal I425 of S shape of centrifugal clutch, centrifugal I425 of S shape is installed in the concentrator bowl I426, concentrator bowl I426 and fly frame 428 are arranged to one, and fly frame 428 is screwed together with flywheel 427; When planet carrier 424 rotates, ring gear 421 is owing to be fixed on the axletree 33 and can not rotate, therefore planet carrier 424 drives sun gear 423 high speed rotating by planetary gear 422, flywheel 427 velocities of rotation are increased, flywheel 427 has more energy like this, make when tilting of car body, the restoring moment that has is bigger, makes car body 1 can better keep balance.Right wheel hub 32 links to each other by spline with the output shaft of motor reduction gearbox 412, motor can drive right wheel hub 32 by motor reduction gearbox and rotate, right wheel hub 32 drives planet carrier 424 around axletree 33 rotations, thereby drive planetary gear 422 rotations and quicken to drive sun gear 423, sun gear 423 drives centrifugal clutch 425 with spline, 426 rotations at a high speed, when centrifugal I425 of S shape rotates at a high speed, because under the action of centrifugal force, two arc pieces of centrifugal I425 of S shape outwards stretch, be adjacent to the inner ring of concentrator bowl I426, because the two frictional force is greater than making the required power of flywheel 427 rotations, so clutch drives flywheels 427 rotations by fly frame 428; When flywheel 427 rotated, this mechanism sent roar, makes toy motorcycle have acoustics true to nature.When toy motorcycle stops to travel, motor reduction gearbox 41 and trailing wheel 3 stop the rotation, centrifugal I425 of S shape is returned to original state owing to losing centrifugal force, not driving clutch sleeve I426 rotates, thereby decontrol fly frame 428, and flywheel 427 still rotates at a high speed around axletree 33 under effect of inertia, makes inertia balance mechanism 42 continue to send roar.The structure of motor reduction gearbox 41 as shown in Figure 9, comprise motor 411, reduction box 412, reduction gearing, band clutch piece III414 gear, band clutch sleeve III413 gear, spline gear and be used to install 3 rooted tooth wheel shafts of said gear, motor 411 drives above-mentioned series of gears and rotates and form deceleration transmission.Wherein clutch piece III414 and clutch sleeve III413 cooperatively interact, and transmit moment of torsion, and clutch sleeve III413 and clutch piece III414 are arranged to one with gear separately respectively; When normal operation, clutch sleeve III413 gear driven clutch piece III414 gear rotates together, does not have mutual rotation between them; When trailing wheel 3 is subjected to greater impact power or resistance, trailing wheel 3 runnings are obstructed, the suffered moment of torsion of each gear increases, this moment, the interior tooth of clutch piece III414 produced strain, from the inner ring groove of clutch sleeve III413, break away from and skid with respect to inner ring, relatively rotate between the clutch, thereby the protection gear can not damage because of overload, this moment, motor 411 rotated and trailing wheel 3 does not rotate; When the suffered external force of toy disappears or during removal of obstacle, the suffered power of interior tooth of the resistance force diminishes clutch piece III414 of trailing wheel 3 is not enough to cause distortion, Nei Ya rebounds again in the groove of clutch sleeve III414, and motor 411 can drive trailing wheel 3 again and rotate.As shown in figure 10, the shock-absorbing effect of trailing wheel 3 is finished jointly by trailing wheel shockproof mechanism 43, motor reduction gearbox 41, support 44 and trailing wheel 3.Trailing wheel shockproof mechanism 42 comprises shock-absorbing axle sleeve 431, shock-absorbing pivot pin 432 and power spring 433, one end of shock-absorbing guide 431 is provided with porose, this hole links to each other with bearing pin on being installed in car body 1, and can be around vehicle body swing, one end of shock-absorbing bearing pin 432 inserts shock-absorbing guide 431, the other end at shock-absorbing bearing pin 432 is provided with porose, motor reduction gearbox 41 and support 44 are provided with bearing, bearing is provided with axle, shock-absorbing bearing pin 432 is rotatably mounted to axle and goes up also motor reduction gearbox 41 and support 44 swings relatively, power spring 433 is enclosed between shock-absorbing guide 431 and the shock-absorbing bearing pin 432; Shock-absorbing pivot pin 432 is inserted in shock-absorbing axle sleeve 431 formation piston type elastic mechanisms after passing power spring 433.Can not relatively rotate in order making between shock-absorbing guide 431 and the shock-absorbing bearing pin 432, to be provided with elongated slot 4311 in two sides of shock-absorbing guide 431, be provided with guide pad 4321 in the relevant position of shock-absorbing bearing pin 432, guide pad 4321 can move in elongated slot 4311; When trailing wheel 3 was subjected to impacting, whole trailing wheel 3 rotated around the axis, and oppressed power spring simultaneously and made its contraction, thereby play the cushioning balance effect; After external force disappeared, trailing wheel 3 recovered the origin-location again under the effect of power spring 433.The utility model is when operation, earlier car body 1 is ajusted and made it to be in upright position, start rear wheel drive device 4 then, motor reduction gearbox 41 drives trailing wheel 3 rotations and also makes flywheel 427 rotation at a high speed simultaneously, toy motorcycle just can travel, when needs are turned, the control control stick starts front-wheel steer gear 5, front-wheel 2 is turned an angle, the drive toy motorcycle turns to, and after toy motorcycle forwards the precalculated position to, moves back to control stick and makes toy motorcycle recover straight-line travelling, in the process of turning, because the effect of four bar linkage steering engine structure 52, car body 1 can slope inwardly, and the moment that trailing wheel inertia balance mechanism 42 is produced can guarantee that toy motorcycle can not fall down, after entering straight-line travelling, the moment that trailing wheel inertia balance mechanism 42 is produced can make car body 1 recover upright state again.

Claims (14)

1, a kind of two takes turns the electronic toy motorcycle, comprise car body (1), have the front-wheel (2) of preceding forked standard (21) and have the trailing wheel (3) of drive unit (4), front and rear wheel (2,3) is installed on the car body (1), it is characterized in that: described front-wheel (2) is provided with transfer (5), and described trailing wheel (3) is provided with inertia balance device (42).

2, according to claim 1 two take turns the electronic toy motorcycle, it is characterized in that: described front-wheel steer device (5) comprises and is fixed on turning to gear (51) and can controlling the four bar linkage steering engine structure (52) that front-wheel (2) rotates of car body (1), four bar linkage steering engine structure (52) links together by preceding forked standard (21) and front-wheel (2), turns to gear (51) to articulate four bar linkage steering engine structure (52) by poke rod (514).

3, according to claim 2 two take turns the electronic toy motorcycle, it is characterized in that: the described gear (51) that turns to comprises motor (511), motor cabinet (512), reduction box (515) and poke rod (514), motor (511) is installed on the motor cabinet (512), motor cabinet (512) is fixed on the car body (1), and poke rod (514) links to each other with the output (513) of reduction box (515).

4, according to claim 3 two take turns the electronic toy motorcycle, it is characterized in that: the described gear (51) that turns to is provided with clutch, clutch is by motor shift fork (517), slide block of two circular arcs (518) and clutch sleeve II (519) form, motor shift fork (517) is installed on the motor shaft, two driving levers (5171) are stretched out on two limits of motor shift fork (517), slide block (518) is provided with hole (5181), slide block (518) is slidably mounted on the driving lever (5171) of motor shift fork by hole (5181), slide block (518) is installed in the inboard of clutch sleeve 1 (519), and clutch sleeve II (519) fixes with speed reduction gear box.

5, according to claim 2 two take turns the electronic toy motorcycle, it is characterized in that: described four bar linkage steering engine structure (52) comprises stationary links (521), two interlock plate (522) and preceding forked standards (21) that have shift fork piece (5221), stationary links (521) is installed on the car body (1), two ends of interlock plate (522) are rotatably connected to respectively on stationary links (521) and the preceding forked standard (21), and preceding forked standard (21), stationary links (521) and two interlock plates (522) constitute a quadric chain together; The shift fork piece (5221) of two interlock plates (522) constitutes shift fork (53), and above-mentioned poke rod (514) is arranged in the middle of the shift fork (53).

6, take turns the electronic toy motorcycle according to claim 2 or 3 or 4 or 5 described two, it is characterized in that: described front-wheel steer device also is provided with front-wheel shockproof mechanism (53), the front-wheel shockproof mechanism comprises preceding forked standard (21), preceding fork shaft (531), damping spring (532), spring cup (533), front axle (534) and shaft coupling (535), preceding fork shaft (531) is provided with the step that can limit damping spring (532) position, hole and shaft coupling (535) that one end of preceding fork shaft (531) passes preceding forked standard (21) fix, and the other end links to each other with damping spring; Front axle (534) fixes with shaft coupling (535); One end of damping spring (532) is installed on the preceding fork shaft (531), and the other end is installed in the groove of spring cup (533), and spring cup (533) links together with preceding forked standard (21) and damping spring (533) is installed in the hole of preceding forked standard (21).

7, according to claim 1 two take turns the electronic toy motorcycle, it is characterized in that: described rear wheel drive device (4) comprises motor reduction gearbox (41) and support (44), one end of motor reduction gearbox (41) and support (44) is installed on car body (1), the other end of motor reduction gearbox (41) and support (44) links to each other with trailing wheel (3), trailing wheel (3) is installed in the centre of motor reduction gearbox (41) and support (44), and the output shaft of motor reduction gearbox (41) and trailing wheel (3) articulate.

8, take turns the electronic toy motorcycle according to claim 1 or 7 described two, it is characterized in that: described inertia balance mechanism (42) is arranged on the inside of trailing wheel (3), comprise left wheel hub (31), right wheel hub (32), axletree (33), planet carrier (424), several rows star-wheel (422), ring gear (421), sun gear (423) and flywheel (427), a left side, right wheel hub (31,32) link to each other, planet carrier (424) links to each other with left wheel hub (31), planet carrier (424) is provided with the axle that planetary gear (422) can be installed, planetary gear (422) is installed in rotation on the axle of planet carrier (424), the tooth of planetary gear (422) is meshed with the tooth of ring gear (421), ring gear (421) is fixed on the axletree (33), sun gear (423) is arranged on the center of ring gear (421) and is meshed with planetary gear (422), and sun gear (423) links to each other with flywheel (427).

9, according to claim 8 two take turns the electronic toy motorcycle, it is characterized in that: described trailing wheel inertia balance mechanism (42) is provided with clutch between sun gear (423) and flywheel (427), clutch comprises centrifugal I (425), clutch sleeve I (426) and the fly frame (428) of S shape, the centrifugal I (425) of clutch links to each other with sun gear (423), clutch sleeve I (426) fixes with fly frame (428), and fly frame (428) links to each other with flywheel (427).

10, according to claim 7 two take turns the electronic toy motorcycle, it is characterized in that: described motor reduction gearbox is provided with clutch, clutch comprises the clutch piece III that has some bullet teeth and has and the clutch sleeve III that plays tooth number same grooves, clutch piece III and clutch sleeve III fix with gear 1, gear 2 respectively, clutch piece III is installed in the clutch sleeve III, plays tooth and is embedded in the groove.

11, according to claim 7 two take turns the electronic toy motorcycle, it is characterized in that: described rear wheel drive device also is provided with trailing wheel shockproof mechanism (43), one end of motor reduction gearbox (41) and support (44) is installed in rotation on the car body (1), two ends of trailing wheel shockproof mechanism (43) be arranged on rotationally respectively that car body (1) is gone up and motor reduction gearbox (41) and support (44) on.

12, according to claim 11 two take turns the electronic toy motorcycle, it is characterized in that: described trailing wheel shockproof mechanism (43) comprises shock-absorbing guide (431), shock-absorbing bearing pin (432) and power spring (433), one end of shock-absorbing guide (431) links to each other with car body (1) rotationally, one end of shock-absorbing bearing pin (432) inserts shock-absorbing guide (431), the other end of shock-absorbing bearing pin (432) links to each other with support (44) with motor reduction gearbox (41) rotationally, and power spring (433) is installed between shock-absorbing guide (431) and the shock-absorbing bearing pin (432).

13, according to claim 12 two take turns the electronic toy motorcycle, it is characterized in that: two sides of described shock-absorbing guide (431) are provided with elongated slot (4311), the relevant position of shock-absorbing bearing pin (432) is provided with guide pad (4321), and guide pad (4321) is installed in the elongated slot (4311) of shock-absorbing guide movably.

14, according to claim 1 two take turns the electronic toy motorcycle, it is characterized in that: described car body (1) is by two halfbodies (11,12) assembly to be formed.

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