A driving device and an electric trolley comprising the driving device

Abstract

The invention relates to the field of driving devices and discloses a driving device and an electric trolley including the driving device. The driving device includes a motor, a motor flange, a support plate, a gear plate, a gear shaft, an internal tooth bowl, a wheel axle, a wheel hub, wheels, a steering shaft and a steering seat. Steering is achieved through the steering shaft and the steering seat, the torque output by the motor obtains a large reduction ratio through the reduction of the gear plate, the gear shaft and the internal tooth bowl, thereby obtaining a large torque. The wheels are installed on one side of the support plate, and only the wheels need to be disassembled for maintenance, which is convenient to disassemble and assemble, low in maintenance cost, and convenient to popularize.

Description

technical field [0001] The invention relates to a driving device, in particular to a driving device and an electric cart containing the driving device. Background technique [0002] At present, handcarts are often used for short-distance transportation of construction materials such as concrete, earthwork, sand and gravel, but the manpower is limited when using handcarts. The limited manpower makes a single transportation volume small, and the single transportation volume requires multiple round trips to complete the project. The construction period is long. Waste of time and manpower. [0003] Electric carts can solve the problem of limited manpower and shorten the construction period to a certain extent, but limited by the construction space, for example, electric carts in the secondary structure construction of buildings need to meet the requirements of small size, large capacity, large strength, low speed and flexibility. Safe feature. [0004] The existing rear axle d...

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Problems solved by technology

[0002] At present, handcarts are often used for short-distance transportation of construction materials such as concrete, earthwork, sand and gravel, but the manpower is limited when using handcarts. The limited manpower makes a single transportation volume small, and the single transportation volume requires multiple round trips to complete the project. The construction period is long. waste of time and manpower

[0003] Electric carts can solve the problem of limited manpower and shorten the construction period to a certain extent, but limited by the construction space, for example, electric carts in the secondary structure construction of buildings need to meet the requirements of small size, large capacity, large strength, low speed and flexibility. security features

[0004] The existing rear axle drive device is bulky, and the rear axle drive device is limited by cost and volume, the steering wheel and the drive are separated, the steering angle is small, and it is not flexible

[0005] Existing in-wheel motors are directly driven by the motor built into the wheel hub, and are divided into outer rotor in-wheel motors and inner rotor in-wheel motors. Although both can be used for steering wheels, they are limited by the following conditions: 1. The output torque is not enough, and the outer rotor The wheel hub motor directly drives the wheel hub with a small output torque, while the electric cart is a construction vehicle with a certain carrying capacity and requires a large torque drive, but limited by the volume, the inner rotor hub motor is a single-stage planetary reduction, which cannot Obtain a large speed ratio and torque, and the cost is high, so it is not suitable for promotion in electric carts; 2. It is inconvenient to disassemble, and the replacement of the wheels during construction requires re-wiring, and the replacement of the wheels requires the replacement of the motor at the same time. The cost is high, and it is not suitable for electric carts. cart wide

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