Authors

Abstract

In order to address the problems of low efficiency and low degree of mechanization of artificial soil clearing of the grapevines in spring in Xinjiang grape growing regions, a grapevine cold-proof soil clearing machine was designed. The machine is mainly composed of a frame, gearbox, suspension device, soil clearing parts, hydraulic system and mechanical transmission system, etc. The motion track of the soil clearing parts was analyzed to obtain the key factors affecting the performance of the grapevine cold-proof soil clearing machine that were determined. The three-factor, three-level quadratic regression orthogonal experiment was carried out with the forward speed, soil clearing parts’ diameter and rotation rate of soil clearing parts as factors and the soil clearing distance was used as evaluation index. The results showed that the order of influence on the soil clearing distance was rotation rate of soil clearing parts > forward speed> soil clearing parts diameter. The parameters were optimized based on response surface method with the following results: the rotation rate of soil clearing parts speed was 277.7 r/min, the forward speed was 3.5 km/h, and the soil clearing parts diameter was 681.7 mm. The validation experiment was carried out with the optimal parameters’ combination. The soil clearing distance was 85.44 cm, which was consistent with the predicted results of the model. This research results can provide reference for the development of other types of grapevine soil clearing machine.

Abstract in English

针对新疆葡萄主产区春季葡萄人工清土作业效率低、机械化程度低的问题。本文设计了葡萄冬季埋土清理机，主要由机架、齿轮箱、清理部件、液压系统等组成。本文以葡萄防寒土清土机为研究对象，通过对前清土刷运动轨迹分析，确定了影响葡萄防寒土清土机性能的关键因素。为了确定葡萄防寒土清土机最佳工作参数组合，以前进速度、刷片直径、清土刷转速为试验因素，以清土距离为评价指标，开展了三因素三水平二次回归正交试验。结果表明，影响清土距离的主次顺序为：清土刷转速>前进速度>清土刷直径。基于响应面法进行参数优化，优化结果为：清土刷直径为681.7mm，前进速度为3.5km/h，主动轮转速为277.7r/min。以优化后参数组合进行试验验证，结果为：清土距离为85.77cm，与模型预测结果一致。本研究结果可为我国新疆地区的地埋清土作业提供新的思路，也可为其他类型葡萄地埋清土机的研制提供参考。