Height adjustment device for vehicle chassis and vehicle adopting same

Abstract

The invention relates to the field of travelling of vehicles, and discloses a height adjustment device for a vehicle chassis. The height adjustment device comprises a frame which is fixedly connected with the vehicle chassis (10), and a support rod (4) is fixedly connected with a vehicle axle (6) in the vertical direction, wherein a parallelogram linkage mechanism is connected between the frame and the support rod (4); and the height of the frame in the vertical direction relative to the position of the wheels can be adjusted. With the adoption of the height adjustment device, the height of the vehicle chassis (10) can be automatically adjusted, the adjustment range is beyond the diameter of a tire of the wheel, the height of the vehicle chassis (10) is increased, and the trafficability for the vehicles are greatly changed, so as to adapt to the operation requirements of high-stalk crops on farmland machinery, the height of the vehicle chassis (10) also can be reduced, so as to adapt to the requirements of the crops during the initial growth period and the requirements of short crops on the field work, and the running stability of the vehicle at a high speed is also improved. The invention further provides a vehicle adopting the height adjustment device for the vehicle chassis.

Description

technical field [0001] The invention relates to the field of vehicle walking, in particular to an agricultural vehicle chassis height adjustment device, so as to meet the field operation requirements of crop growth period and high-stalk crops. Background technique [0002] With the development of agricultural mechanization in our country and the improvement of people's living standards, people put forward higher requirements for farmland operation machinery. After field crops are planted, field management operations such as cultivating, weeding, spraying pesticides and fertilizing all have high requirements on the passability of agricultural machinery, so it is more urgent to actively adjust the height of the vehicle chassis to improve the passability of vehicles. As crops increase in height during growth and field management operations for taller crops often require adjustments beyond the tire diameter. At present, there are many ways to adjust the height of the chassis of...

AI Technical Summary

Problems solved by technology

At present, there are many ways to adjust the height of the chassis of the vehicle. The invention patent with the application number of 200610018159.1 includes an air suspension, which can realize the change of the height of the chassis from the ground through the inflation and deflation of the air spring, but the adjustment amount is small. , far from meeting the chassis height requirements of field vehicles

The invention patent with the application number 200510084634.0 changes the height of the suspension support relative to the vehicle body through the height control device, which can indirectly adjust the height of the car chassis within a certain range and improve certain comfort and stability, but the structure is complicated and the cost is high. Poor rigidity, mainly used in cars, and due to structural limitations, the adjustment amount is small, and it still cannot meet the requirements of large-scale adjustment of the chassis height of the vehicle during field management operations during the entire growth process of farmland crops

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