CN2477530Y - Drive wheel of electric vehicle - Google Patents

Abstract

The utility model discloses a driving wheel for electric vehicle, comprising a wheel body, a synchrodrive big gear inner ring and a synchrodrive big gear outer ring. The big gear inner ring and the big gear outer ring both have the same axle center with the wheel body and are both arranged on one side of the wheel body. The big gear inner ring is rigidly connected with the wheel body. The big gear outer ring is opened with an inner tooth. The big gear inner ring is provided with a convex little tooth which is tabled with the inner tooth of the big gear outer ring. The utility model has the advantages of saving labor for the operator, shortening the sliding distance of starting and being more reliable of the controller circuit operation when is used in the operation process.

Description

The driving wheel of elec. vehicle

The utility model relates to elec. vehicle, relates more specifically to the driving wheel of elec. vehicle.

Elec. vehicle is as a kind of free of contamination leisure and the green carriers instrument of riding instead of walk, except that supplying leisure, amusement, also can be in places such as bulk storage plant, workshop, tourist attractions as the instrument of riding instead of walk, to increase work efficiency and to reduce the round fatigue of walking about and causing, its application prospect is very wide.

At present, the elec. vehicle of having produced and having put on market has Segway Human Transporter, Electrical Bicycle, electro-tricycle, storage battery car both at home and abroad, and it is of a great variety, and principle of work is roughly the same, all be unable to do without driving wheel.Be example below with the Segway Human Transporter, the elec. vehicle principle of work is described, to be manpower slide into the power supply of connecting electrical motor behind the certain speed with Kickboard Scooter to existing Segway Human Transporter mode of operation, electrical motor is sent to driving wheel (driving wheel is generally trailing wheel) by synchronous band with power, and Segway Human Transporter just can run on road and the place in electronic mode again.

Existing Segway Human Transporter, owing to be positive drive, therefore there are some shortcomings in the type of drive between its electrical motor and the driving wheel.At first, because electrical motor and driving wheel are positive drives, when sliding with manpower, trailing wheel will drive electrical motor idle running has increased resistance of taxing, and the operator has to consume one's strength more; Secondly, in the Kickboard Scooter normal course of operation after the electrical motor energising, when the needs outage is slided, in the moment of outage, electrical motor is transformed into the function with electrical generator under the drive of trailing wheel, it will impact the electronic control circuit of Segway Human Transporter with a higher counter potential, greatly reduce the reliability of control circuit, simultaneously since the expenditure of energy that inertia provided after the outage in the idle running of electrical motor, shorten the coasting distance of Segway Human Transporter, shortened the once electrically-charged continual mileage of battery that Kickboard Scooter is used, its result also certainly will shorten the service life of battery.

Studying carefully its above-mentioned reason, mainly is that the driving wheel of traditional elec. vehicle does not have clutch function to cause.

For this reason, the purpose of this utility model is the shortcoming at the driving wheel existence of above-mentioned conventional electric vehicle, and a kind of driving wheel of improved elec. vehicle is provided.

To achieve these goals, the utility model adopts following technical scheme: the driving wheel of elec. vehicle comprises wheel body, synchrodrive big gear wheel inner ring, synchrodrive big gear wheel outer ring, synchrodrive big gear wheel inner ring and synchrodrive big gear wheel outer ring all with wheel body totally one axle center and be located at a side of wheel body, synchrodrive big gear wheel inner ring and wheel body rigidity link, wherein: synchrodrive big gear wheel outer ring offers internal tooth, and the big gear wheel inner ring convexes with the little tooth with the internal tooth tabling of big gear wheel outer ring.

The internal tooth of the outer ring of described synchrodrive big gear wheel is a ratchet shape internal tooth.

Little tooth on the inner ring of described synchrodrive big gear wheel is the little tooth of retractable elasticity.

Because the utility model offers internal tooth with the synchrodrive big gear wheel outer ring of the driving wheel of elec. vehicle, the big gear wheel inner ring convexes with the little tooth with the internal tooth tabling of big gear wheel outer ring, make that big gear wheel is one to have the driving wheel of power-transfer clutch function, in the elec. vehicle operational process, when electrical motor cuts off the power supply, vehicle can be realized art skating, also can avoid the circuit of electronic controller to be subjected to the impact of counter potential and to guarantee its reliability, simultaneously, save the electric energy of battery and prolonged its service life, when starting, also save operator's muscle power, also can shorten the coasting distance when starting.

Below in conjunction with drawings and Examples, the utility model is done one describe in detail.

Fig. 1 be driving wheel of the present utility model structure and with the electrical motor connection diagram.

Fig. 2 is the plan structure scheme drawing of Fig. 1.

The utility model considers that the departure point of the existing problem of driving wheel of solution elec. vehicle is, making the type of drive between electrical motor (or other power plant) and the driving wheel is non-rigid transmission, drive driving wheel (trailing wheel) with synchronous band (or messenger chain), driving wheel is designed to the structure of power-transfer clutch, as bicycle freewheel.

See also shown in Fig. 1,2, the driving wheel 10 of this elec. vehicle (still being example with the Kickboard Scooter) comprises wheel body 11, synchrodrive big gear wheel inner ring 12, synchrodrive big gear wheel outer ring 13, synchrodrive big gear wheel inner ring 12 and synchrodrive big gear wheel outer ring 13 all with wheel body 11 totally one axle center and be located at a side of wheel body 11, synchrodrive big gear wheel inner ring 12 links with wheel body 11 rigidity, wherein, synchrodrive big gear wheel outer ring 13 offers internal tooth 131, and internal tooth 131 is a ratchet shape internal tooth.Big gear wheel inner ring 12 convexes with the little tooth 121 with internal tooth 131 tablings of big gear wheel outer ring, and the little tooth 121 on the inner ring is the little tooth of retractable elasticity, and in Fig. 1, the quantity of the little tooth 121 on the inner ring is four, and is evenly distributed on the circumference of inner ring 12.

This driving wheel 10 is if driven by electrical motor 20, after electrical motor 20 energisings, the rotor of electrical motor 20 rotates from the shaft extension end anticlockwise direction of seeing over, drive by the miniature gears on 20 of the electrical motors 21 and to be with 30 synchronously, be with 30 to drive big gear wheel outer ring 13 synchronously, the internal tooth 131 on the outer ring 13 promotes resilient little tooth 121 on the synchrodrive big gear wheel inner ring 12, and inner ring 12 anticlockwise direction are rotated, inner ring 12 links wheel body 11 and inner ring 12 equidirectional rotations with wheel body 11 for rigidity.The realization Kickboard Scooter is advanced forward.When electrical motor 20 outages, miniature gears 21 stalls on the electrical motor 20, be with 30 to stop transmission synchronously, 13 stalls of big gear wheel outer ring, inner ring 12 is rotated further under the effect of car load force of inertia with wheel body 11, car load also just moves on, little tooth 121 on the inner ring 12 is owing to be telescopic, and 13 stalls in the outer ring, when inner ring 12 rotates are under 131 the compressing of little tooth 121 on outer ring 13 in the indentation inner ring 12, can not stop being rotated further of inner ring 12 and wheel body 11, realize the art skating of car load safety.Can overcome the shortcoming that structure caused of traditional Kickboard Scooter effectively like this because of its driving wheel.

The driving wheel of the utility model structure applicable to electronic (two take turns) bicycle, electro-tricycle and similar elec. vehicle, and every vehicle that other type power is arranged.

Claims (3)

1. the driving wheel of an elec. vehicle, this driving wheel comprises wheel body, synchrodrive big gear wheel inner ring, synchrodrive big gear wheel outer ring, synchrodrive big gear wheel inner ring and synchrodrive big gear wheel outer ring all with wheel body totally one axle center and be located at a side of wheel body, synchrodrive big gear wheel inner ring and wheel body rigidity link, it is characterized in that: synchrodrive big gear wheel outer ring offers internal tooth, and the big gear wheel inner ring convexes with the little tooth with the internal tooth tabling of big gear wheel outer ring.

2. the driving wheel of elec. vehicle as claimed in claim 1, it is characterized in that: the internal tooth of the outer ring of described synchrodrive big gear wheel is a ratchet shape internal tooth.

3. the driving wheel of elec. vehicle as claimed in claim 1, it is characterized in that: the little tooth on the inner ring of described synchrodrive big gear wheel is the little tooth of retractable elasticity.

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