Walking hydraulic transmission system of hydraulic four-wheel-drive high-ground-clearance wheel type spraying machine

Abstract

A walking hydraulic transmission system of a hydraulic four-wheel-drive high-ground-clearance wheel type sprayer relates to the field of agricultural machinery and comprises a first closed pump and a second closed pump. One oil port of the first closed pump is connected with an oil collecting port of a first diverter valve, one oil distributing port of the first diverter valve is connected with a left front wheel hydraulic motor and a left front wheel reversing valve, and the other oil distributing port of the first diverter valve is connected with a right rear wheel hydraulic motor and a right rear wheel reversing valve; the right rear wheel reversing valve and the left front wheel reversing valve are connected in parallel and then are connected with the other oil port of the first closed pump; one oil port of the second closed pump is connected with an oil collecting port of a second diverter valve, one oil distributing port of the second diverter valve is connected with a right front wheel hydraulic motor and a right front wheel reversing valve, and the other oil distributing port of the second diverter valve is connected with a left rear wheel hydraulic motor and a left rear wheel reversing valve; and the left rear wheel reversing valve and the right front wheel reversing valve are connected in parallel and then are connected with the other oil port of the second closed pump. The application range of the spraying machine is wider.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a traveling hydraulic transmission system of a sprayer. Background technique [0002] In the eastern and western regions of China, high-stem crops such as corn and cotton have become the pillar economic products of agricultural production due to the choice of geographical and climatic reasons; the planting area is very large, and spraying operations need to be carried out regularly during the production cycle. The time is tight, the working environment is very harsh, and the work cannot be completed directly by humans, and high ground clearance wheel sprayers are also used. [0003] However, the hydraulic system of the existing high ground clearance wheel sprayer adopts two-wheel drive, which is an open hydraulic system, and has the following defects: 1. The loss of horsepower output of the two-wheel drive is high. 2. The scope of application of the two-wheel drive is narro...

AI Technical Summary

Problems solved by technology

[0002] In the eastern and western regions of China, high-stem crops such as corn and cotton have become the pillar economic products of agricultural production due to the selection of geographical and climatic reasons; their planting area is very large, and spraying operations need to be carried out regularly during the production cycle. The time is tight, the working environment is very harsh, and the work cannot be done directly by hand, and some high-clearance wheeled sprayers are used

[0003] However, the hydraulic system of the existing high ground clearance wheeled sprayer adopts two drives, which is an open hydraulic system, and has the following defects: 1. The horsepower output loss of the two drives is high

2. The scope of application of the two-wheel drive is narrow, and the muddy and steep areas will affect the stability of the two-wheel drive tractor and the effect of the operation.

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