US 12,225,841 B2
Device and method for measuring and calibrating ground pressure of seeding depth limiting wheel
Yuanyuan Gao, Zhenjiang (CN); Peiying Li, Zhenjiang (CN); Mengfan Wang, Zhenjiang (CN); Xinhua Wei, Zhenjiang (CN); Qingzhen Zhu, Zhenjiang (CN); Dianzhe Zhao, Zhenjiang (CN); Aocheng Qi, Zhenjiang (CN); and Yifei Yang, Zhenjiang (CN)
Assigned to JIANGSU UNIVERSITY, Zhenjiang (CN)
Appl. No. 18/570,637
Filed by JIANGSU UNIVERSITY, Zhenjiang (CN)
PCT Filed Feb. 9, 2023, PCT No. PCT/CN2023/075134
§ 371(c)(1), (2) Date Dec. 15, 2023,
PCT Pub. No. WO2024/113491, PCT Pub. Date Jun. 6, 2024.
Claims priority of application No. 202211504004.4 (CN), filed on Nov. 28, 2022.
Prior Publication US 2024/0324494 A1, Oct. 3, 2024
Int. Cl. G06F 7/70 (2006.01); A01C 5/06 (2006.01); A01C 7/20 (2006.01)
CPC A01C 7/205 (2013.01) [A01C 5/062 (2013.01); A01C 7/203 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A device for measuring and calibrating ground pressure of seeding depth limiting wheels, comprising:
a main body, connected to a pair of the depth limiting wheels;
a pressure adjusting member, arranged on the main body and configured to adjust a pressure of the depth limiting wheels to a ground;
a pressure sensor, arranged on the main body and configured to detect actual pressures output by the pressure adjusting member;
a pressure acquisition calibrator, arranged below the depth limiting wheels and abutting against the depth limiting wheels, and configured to detect ground pressures applied by the depth limiting wheels on the ground, and adjust the actual pressures output by the pressure adjusting member,
wherein the pressure acquisition calibrator is electrically connected to the pressure sensor, and the pressure acquisition calibrator is further configured to store and automatically fit a plurality of the actual pressures and a plurality of the ground pressures to establish a model for measuring the ground pressure of the seeding depth limiting wheels; and
a profiling four-link mechanism, hingedly connected to the main body, wherein one end of the pressure adjusting member is connected to the main body, and an other end of the pressure adjusting member is hingedly connected to the profiling four-link mechanism; and
a levelness detector, arranged on the profiling four-link mechanism, and configured to detect an inclination angle between the profiling four-link mechanism and a horizontal plane.