Electric tractor provided with single motor and driven through front axle and rear axle

Abstract

The invention discloses an electric tractor provided with a single motor and driven through a front axle and a rear axle. The electric tractor comprises a tractor body, a control device, a steering wheel, a battery pack, the front axle, the rear axle, a front wheel, a rear wheel and a traction object connection device. The electric tractor is characterized in that the power adjustable motor is arranged between the front axle and the rear axle, the two ends of a shaft of the motor conduct acting, the front end of the shaft of the motor is connected with a drive shaft of a differential mechanism of the front axle through a cross-shaped shaft, the rear end of the shaft of the motor is in transmission connection with a worm body of a worm wheel worm through a coupling, and a worm wheel of the worm wheel worm is fixed to a shaft of the rear axle; the upper walls of the two ends of the front axle are provided with T-shaped slide blocks, and horizontal electromagnetic pushing-pulling devices are arranged at the positions corresponding to the T-shaped slide blocks. The connection portion of the coupling and the worm wheel worm is provided with a clutch. According to the tractor, on the basis of maintaining automatic control over steering, advancing, retreating and the like in the prior art, driving of the front wheel and the rear wheel is achieved through one motor, the power can be regulated according to the state of no-load, light load and heavy load, a tractor body is shortened, the steering radius is small, electric consumption is saved, and noise is low.

Description

technical field [0001] The invention relates to an improvement of an electric tractor, in particular to an electric tractor driven by a single motor with front and rear axles. Background technique [0002] In the current high school teaching, the school encourages students to take some time as much as possible to do some social practice investigations, get in touch with social practice, discover problems, solve problems, and develop ideas. Through investigation and research, it can be seen that the current electric tractor generally includes front and rear axles, front and rear wheels, cab, steering device, reversing device, undercarriage, DC motor, buffer and traction load connection device. The upper part of the frame is equipped with a battery pack, and the DC motor is installed on the front side of the bottom of the frame. The turning radius is too large, which affects the scope of application. Especially for airport tractors, due to the limited width of the runway, it ...

AI Technical Summary

Problems solved by technology

Through investigation and research, it can be seen that the current electric tractor generally includes front and rear axles, front and rear wheels, cab, steering device, reversing device, undercarriage, DC motor, buffer and traction load connection device. The upper part of the frame is equipped with a battery pack, and the DC motor is installed on the front side of the bottom of the frame. The turning radius is too large, which affects the scope of application. Especially for airport tractors, due to the limited width of the runway, it is inconvenient to turn. The second is that a motor is used, and the power of the motor cannot be adjusted, which leads to the phenomenon of a large horse-drawn car when it is empty, resulting in a waste of electric energy; third, because it is front-wheel drive or rear-wheel drive, In the case of special road conditions, the car will be parked; the fourth is that there is no noise reduction device, resulting in high noise

[0003] It can be seen through searching that in order to change the deficiencies of the above technologies, such as Chinese patent 200810143814.5, discloses a scheme in which two motors drive the front and rear wheels respectively, the front motor drives the front wheels through the reducer, and the rear motor drives the rear wheels through the reducer , the shortcomings of this design are: first, because the two motors are driven separately, the synchronization is poor, resulting in the consumption of torque; second, because the two motors are installed on the same axis, the possibility of the maximum shortening of the frame is limited; Turning is still achieved solely by the swing of the front wheels and the effect of the differential, so the possibility of further reduction in the turning radius is limited

At present, there is no report on an electric tractor that can drive the front and rear wheels through one motor and can greatly reduce the turning radius.

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