Design and Experiment of Self-Propelled Multifunctional Trenching and Fertilizing Machine

Abstract

In orchard management, trenching operations are labor-intensive and have low efficiency, and mechanization is of crucial importance for the development of the fruit industry in China. In view of the many deficiencies of the existing chain-type and disc-type trenching machinery, this paper designs a self-propelled multifunctional orchard trenching machine. Its core component, the double-disc trenching disc, is an innovative design. Compared with the traditional single-disc trenching disc, it effectively reduces the trenching power consumption while ensuring the trenching depth and width, and significantly improves the operation efficiency. The trenching machine is composed of a frame, a gearbox, a double-disc trenching disc, a trenching knife, a soil retaining plate, etc. Field tests show that the operation speed reaches 1.2 kilometers per hour, the trenching depth is 31.2 cm, the width is 30.5 cm, and the stability coefficient of the trenching depth is 97.2%. Its power consumption is in a relatively good parameter group. When the cutter roller speed is 400 r/min, the forward speed is 0.8 km/s, and the trenching depth is 0.3 m, the average power consumption value of the trenching component is measured to be approximately 7.63 kW, with an 11.18% reduction in power consumption compared with the current trenching machines. And it meets the requirements of orchard agronomy and industry standards. In terms of improving productivity, its high-efficiency operation performance can greatly shorten the trenching operation time in the orchard, enabling fruit growers to arrange production more reasonably and increase fruit output. In reducing labor costs, mechanization replaces manpower, reduces manpower input, reduces labor cost expenditures, and at the same time avoids the instability of manpower operations. For the sustainability of orchard operations, the precise and stable trenching operation helps to optimize the utilization of land resources, ensure the quality of orchard agronomy, maintain the long-term production capacity of the orchard, promote the sustainable development of the orchard, and inject new impetus into the mechanization process of the fruit industry.