DESIGN AND EXPERIMENTAL STUDY OF PEANUT PLANTER WITH HIGH-SPEED OPERATION AND CONTROLLABLE SOWING DEPTH

Author:

LI Moxian1,CHANG Xueliang1,HE Xiaoning1,ZHANG Ning1,LIU Wei2,LIU Zhixin1,DONG Tongtong1,SHANG Shuqi1,WANG Dongwei1,ZOU Maomao1,LI Yunkang1,MA Zhenjia1

Affiliation:

1. Qingdao Agricultural University, College of Mechanical and Electrical Engineering /China

2. Shandong Yuanquan Mechanical Co /China

Abstract

Aiming at the traditional peanut planter seed and fertilizer sowing depth inconsistency caused by seed burning and injury, fertilizer waste and low seed emergence rate, the design of a peanut planter with high-speed operation and controllable seed and fertilizer sowing depth was performed. The laser sensor is added to detect the height of the ridge and the furrow opener position feedback, and the speed sensor detects the operating speed of the peanut planter. The mechanical analysis of the four-link rod clarifies the control principle, improves the PID algorithm of the integral term, designs the control strategy based on the operating speed of the planter, controls the electro-hydraulic system, and realizes the sowing and fertilizing depth adjustment of the furrow opener. Through the design of three-factor three-level orthogonal simulation test, it is concluded that the vehicle speed and height deviation value are significant factors affecting the sowing and application depth, and under the verification of the field test, it is obtained that when the sowing depth is 50 mm under the speed of 3 km/h, the dynamic sowing depth qualification rate is 96.26%, and the maximum coefficient of variation of the sowing depth is 2.58%, which improves the effect of the existing control of the sowing depth of the peanut by 6.05%, and reduces the variation of the sowing depth by 2.85%. The research has demonstrated superior performance compared to traditional mechanical adjustment in regulating the planting depth of peanuts, thereby achieving the intended design objective.

Publisher

INMA Bucharest-Romania

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