トラクタのすべり率・負荷制御に関する研究 (第1報)
定置実験装置の製作
1975 年 37 巻 1 号 p. 6-12
詳細
1975 年 37 巻 1 号 p. 6-12
In this paper, the discussions on the slip- draft control of tractor for farm use were held.
Simulation technique was applied in constructing the bench test facility for simulating the tractor behavior at drawing operations.
In Fig. 1. the constructed bench test facility is shown.
Farm tractor generally has a three point linkage hitch system which can be hydraulically controlled detecting the spring displacement to know the compressing force acting on the top link.
In this research work, two generator tachometers were used instead of the load sensing spring to detect the slippage of the drive wheel. Two input signals (voltages) from two generators were electronically compared and amplified, then the hydraulic circuit was controlled under the on-off motion of relay and solenoid valve in keeping the constant slippage and constant traction force.
Operations and control were kept quite well. The theoretical and experimental discussions will be held in the future report.
