Four-wheel steering four-wheel-drive car

Abstract

The invention discloses a four-wheel steering four-wheel-drive car and belongs to the technical field of car transmission devices. The four-wheel steering four-wheel-drive car comprises a car frame and four wheels which are arranged below the car frame and provided with independent wheel shafts and bearing seats; the car frame is provided with four vertical transmission shafts corresponding to the four wheels correspondingly; the transmission shafts are in separation and reunion connection with the wheel shafts; and the transmission shafts are in separation and reunion connection with steering frames capable of driving the wheels to swing around the transmission shafts. The effect that the rotation directions and the drive directions of the four wheels are changed by changing the direction of a motor and the actuation state of a clutch is achieved, the traveling route of the car is changed accordingly, a car body of the car does not rotate in the steering process, and the capacity of the car to pass through a narrow space is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle transmission devices, in particular to a four-wheel-steering four-wheel-drive trolley. Background technique [0002] In the process of cargo transportation in warehouses and other places, the delivery trolley will be used. The general delivery trolley has only two driving wheels, and the other two are driven wheels. The delivery trolley with two driving wheels needs a certain turn when turning. Radius, when the cargo trolley walks in a narrow space, the turning radius is insufficient in some places, and the trolley cannot pass the turn. [0003] Through the existing four-wheel steering technology, the turning radius of the trolley can be reduced and the ability of the trolley to pass through narrow spaces can be improved; while the existing four-wheel steering trolleys are mostly rocker-type four-wheel steering, that is, the steering rod moves left and right to make Four-wheel steering; some make...

AI Technical Summary

Problems solved by technology

[0004] The steering process of the trolley using the existing four-wheel steering technology is as follows: first, the four wheels generate a rotation angle, and then drive the trolley to make the trolley rotate with a certain point as the center of the circle. Positive, the steering is completed; this steering process requires the car body to rotate to complete the steering. When the car body is close to the obstacle and the car body cannot rotate, the steering cannot be performed; for example, when the car needs to drive forward to the top Steering is performed when the obstacle is in the way, and the car cannot be turned because the body of the car cannot rotate.

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