CN2276904Y

CN2276904Y - Decelerating driving gear of electric booster vehicle

Info

Publication number: CN2276904Y
Application number: CN 96216592
Authority: CN
Inventors: 廖宏谊; 陈厚松; 潘熙雍
Original assignee: GUILIN ELECTRIC EQUIPMENT SCIENCE INST MINISTRY OF MACHINE BUILDING
Current assignee: GUILIN ELECTRIC EQUIPMENT SCIENCE INST MINISTRY OF MACHINE BUILDING
Priority date: 1996-07-08
Filing date: 1996-07-08
Publication date: 1998-03-25
Anticipated expiration: 2006-07-08

Abstract

The utility model provides a decelerating driving gear of an electric booster vehicle, particularly a decelerating driving gear of an electric booster vehicle using a printing winding motor or a disk-typed motor. A motor shaft is a hollow shaft; a wheel shaft passes through the motor shaft; a sun gear is arranged on the motor shaft; two-three large gears of double-connection planetary gears which are symmetric with a shaft are engaged with a sun wheel; a pinion is engaged with an inner gear; a planetary gear shaft drives a wheel hub to rotate through an overrunning clutch. All the gears are made of plastic materials or powder metallurgy materials. The decelerating driving gear of an electric booster vehicle has the advantages of high transmission efficiency, few parts, simplicity, easy batch production, compact structure and small size. The utility model can be arranged on the wheel hub position of an original wheel. The vehicle body and the vehicle frame of the utility model have no need of special design. The utility model is suitable for bicycles, pedicabs or electric wheelchairs.

Description

A kind of Moped Scooter speed reducing driving device

The utility model relates to a kind of Moped Scooter speed reducing driving device, particularly a kind of Moped Scooter speed reducing driving device that uses printed circuit motor or disc type electric machine.

The Moped Scooter speed reducing driving device major defect of existing use printed circuit motor or disc type electric machine is a complex structure, and difficulty of processing is big, the cost height; And the device overall volume is big, need make particular design to the vehicle frame of bicycle when installing and using.

The purpose of this utility model provides a kind of Moped Scooter speed reducing driving device, and not only part is few, simple, be easy to batch making production, and compact conformation, volume is little, can be installed in existing wheel nave position, vehicle body frames need not to change substantially, is suitable for bicycle, manual tricycle or electric wheelchair.

Design plan of the present utility model is: the axle of motor is hollow shaft, and axletree passes motor shaft; Sun gear is housed on the motor shaft; 2～3 big gear wheel and sun wheels with axisymmetric compound planet gear mesh, miniature gears and inner gear engagement; Compensating-gear shaft drives wheel hub by overriding clutch and rotates.All gears all can adopt plastics or partial metallurgy material.

The utility model has the advantages that; 1 adopts rational planetary gear speed-reduction, and driving efficiency is up to 97%～99%; 2 compact conformations, volume is little, can be installed in the hub positions of bicycle, cyclo or electric wheelchair, and is spry and light attractive in appearance, also need not for speed reducing driving device is installed former vehicle body frames to be carried out the particular design change; 3 plastic gears or powder metallurgical gear are convenient to moulding, are easy to batch manufacturing, and the big spoke of productive costs reduces; Noise is low when 4 plastic gears or powder metallurgical gear operation; 5 electromotor no axis are beneficial to motor and work reliably and with long-term to, radial force.

Accompanying drawing 1 is an embodiment Moped Scooter speed reducing driving device structural representation of the present utility model.

Embodiment of the present utility model as shown in drawings.The motor shaft (2) of printed circuit motor (1) is a hollow shaft.Axletree (3) passes motor shaft (2), bearing (4) the support motor axle (2) on the axletree (3).The number of teeth be housed be 12～22 sun gear (5) on the motor shaft (2); Planetary wheel (6) is by small one and large one two dual gears that gear constitutes, and its big gear wheel is that the number of teeth is 30～60 gear, and its miniature gears is that the number of teeth is 10～20 gear; Inner gear (7) is 50～100 gear for the number of teeth.With the big gear wheel and sun gear (5) engagement of axisymmetric 2～3 planetary wheels (6), its miniature gears and inner gear (7) engagement, transmitting ratio reaches 12～26.When motor (1) rotated, the sun gear (5) on the motor shaft (2) drove planetary wheel (6) around motor shaft (2), and promptly axletree (3) rolls along inner gear (7), and the axle (8) of planetary wheel (6) drives wheel hub (10) through overriding clutch (9) and rotates.All gears all can be plastics or powder metallurgical gear.

Claims

1 one kinds of Moped Scooter speed reducing driving devices that use printed circuit motor or disc type electric machine, it is hollow it is characterized by motor shaft, axletree passes the motor shaft that sun gear is housed; 2～3 big gear wheel and sun wheels with axisymmetric compound planet gear mesh, miniature gears and inner gear engagement; Compensating-gear shaft drives wheel hub by overriding clutch.

2 Moped Scooter speed reducing driving devices as claimed in claim 1, it is characterized by sun gear is that the number of teeth is 12～22 gear, planetary big gear wheel is that the number of teeth is 30～60 gear, miniature gears is that the number of teeth is 10～20 gear, inner gear is that the number of teeth is 50～100 gear, and transmitting ratio is 12～26.