关键词: 履带割草机, 丘陵山地, 生草栽培, 性能试验

Abstract: Aiming at the problems that the 15°~25°slope economic crop planting park in hilly and mountainous areas of Guangxi is characterized by large slope, scattered plots, lack of tractor roads, and the existing mechanized mowing machines are difficult to enter the operation, a remotecontrol tracked mower is developed in combination with the agronomic technology of cover cropping in the planting park. According to the working condition requirements of the lawn mower in the working environment of the park, the calculation, analysis and design of the whole machine and key components such as tracked walking system, cutting system, variable mowing height adjustment system, etc. are carried out. The performance test of the mower is carried out. The experimental results show that the mower has sufficient power. The maximum longitudinal climbing angle is 36°, and the maximum oblique climbing angle is 41°. Under the action of the rangeextender system, the comprehensive working time is extended from 1.5 h to 1.8 h. The minimum turning radius is 500 mm. The remote control performance of the mower is tested through the straightline walking test and the maximum deviation angle is not more than 3° on the test ground. Through the bench test, the longitudinal tipping stability angle is 48.9°, and the lateral tipping stability angle is 64.4. A mowing experiment was carried out in a mechanized tea garden demonstration area in Guangxi. The average mowing rate was 95%. It can realize the walking, braking, steering and height adjustment of the mower through remote control, so as to meet the working requirements of the hillside plantation.

Key words: hills and mountains, tracked mower, cover cropping, performance test