Design and Experiment of Rotation Adjustment and Automatic Locking Device of Bi-directional Ridger for Paddy Field

被引：0
|
作者：
Wang J. [1 ]
Weng W. [1 ]
Ju J. [2 ]
Chen X. [1 ]
Liu J. [1 ]
Tang H. [1 ]
机构：
[1] College of Engineering, Northeast Agricultural University, Harbin
[2] College of Mechanical Engineering, Heilongjiang University of Science and Technology, Harbin
来源：
Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery | 2021年 / 52卷 / 03期
关键词：
Locking device; Paddy field; Ridger; Rotation adjustment; Test;
D O I：
10.6041/j.issn.1000-1298.2021.03.006
中图分类号：
学科分类号：
摘要：
Aiming to ensure the efficiency of ridge construction, reduce the labor intensity, and solve the problem that the manual control accuracy was not high and there was a large swing in the process of switching operation mode of the bi-directional ridger in paddy field, resulting in unstable rotation and unable to automatically lock. The whole structure and working principle were described. The motion model of the rotation adjustment device and the locking device was established, the angular acceleration range of the rotation process was determined to be 0.038~0.154 rad/s2 and the rated output torque of the motor of the required electric push rod was 1.64~6.71 N•m through kinematic and dynamic analysis. Based on the calculation of the moving speed of the electric putter, the relation curve between the elongation speed of the electric putter and the turning time was obtained and the steering control system was designed. According to the stress analysis of the lock pin, the maximum resistance of the lock pin to the soil was 18 470 N and the diameter of the lock pin was 10 mm. The slewing performance test was conducted to record the slewing adjustment state of the chain drive box and compared with the theoretical motion state designed in a rotating cycle. The results showed that the mean square error of the whole rotation cycle was 1.01(°)2, the rotation adjustment process was consistent with the ideal motion process, and the control system had a high precision. Field operation performance test was conducted on the bi-directional ridger in paddy field. The test results showed that the average solidity of the ridge reached 1 180 kPa, and the rotation adjustment locking device was firmly locked, which did not affect the normal operation in the field. © 2021, Chinese Society of Agricultural Machinery. All right reserved.
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页码：57 / 67and98
页数：6741
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