A vehicle chassis height adjustment device and a vehicle using the device

Abstract

The invention belongs to the field of vehicle running and discloses a vehicle chassis height adjusting device. It includes: a frame fixedly connected with the vehicle chassis, a wheel, a crank double slider mechanism fixedly connected to the frame, a slider rocker mechanism connected between the frame and the wheel, and the two mechanisms share the same slider; wherein, In addition to the crank double-slider mechanism of the vehicle chassis height adjustment device, two sets of slider rocker mechanisms are arranged symmetrically with the vertical bisector of the vehicle wheelbase as the center line. The device can actively adjust the height of the vehicle chassis and the adjustment range exceeds the diameter of the wheel tire, and can ensure that the wheelbase of the vehicle remains unchanged during the height adjustment process. The invention also provides a vehicle using the device. Raise the height of the vehicle chassis to improve vehicle passability to meet the field management requirements of crops in the middle and late stages of crop growth and high-stalk crops; reduce the height of the vehicle chassis to meet the field management requirements of early crop growth and low-stalk crops.

Description

technical field [0001] The invention belongs to the field of vehicle running, in particular to a vehicle chassis height adjustment device and a vehicle using the device. To meet the operational requirements of field management during the crop growth period. Background technique [0002] my country's agricultural machinery is developing rapidly. In field management operations, spraying, weeding, fertilizing, and intertillage are important links. Therefore, people have put forward higher requirements for agricultural machinery, especially plant protection machinery. As the height of the chassis is higher, the passability is better. Therefore, there is an urgent need to greatly adjust the height of the vehicle chassis steplessly to improve the vehicle's passability to meet the crop field management requirements. With the increase in height during crop growth and field management of high-stalk crops, the adjustment range usually needs to exceed the tire diameter. [0003] In ...

AI Technical Summary

Problems solved by technology

There are currently many ways to adjust the height of the vehicle chassis. For example, the invention patent application number 201110457954.1 includes a vehicle chassis height adjustment suspension and a vehicle with the suspension. By adjusting the parallelogram between the frame and the wheels The mechanism makes the height of the frame relative to the wheel position adjustable in the vertical direction, which can greatly increase the height. However, when the height is adjusted through the parallelogram mechanism, the wheelbase of the vehicle is changed, which increases the difficulty of power transmission and steering problems.

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