Studies on Measurement of Transmitting Torque and Dynamic Weight Distribution of a Tractor under Several Transitional Conditions

Abstract

Fluctuations of transmitting torque and dynamic weight distribution of a tractor were measured when it was used under several transitional conditions.
The conditions are to say sudden start and stop, sharp turning, running over uneven obstacles and heavy work with rotary tiller. Results obtained are as follows.
1. Torque on clutch shaft
The ratio of the measured maximum torque to the engine maximum torque (2.5kg⋅m/1800rpm) was obtained in each case (Tab. 2, 4, 5).
In rotary tillage, the maximum ratio 2.5 was found in the vicinity of engine stop at the time of the most heavy work, but in normal tillage conditions, the torque frequency curves showed normal distribution and gave us some interesting informations (Tab. 7).
2. Dynamic weight distribution
Load factors are calculated on both front and rear wheel weight in each case (Tab. 2, 4, 6). Load factors amounted to 5.00 were obtained in the case of running over a ditch (Fig. 9, (c)).