由于农业机械(包括机械传动装置)的寿命决定于所受负荷的大小和频率特性(谱线密度)。因此,能够重复产生负荷使用工况和概率特性不变的装置(负荷加载器),对于机城传动装置的台架试验具有很大作用。此外,使用负荷情况的重复性是实现快速寿命试验的必要前提,这种试验在很短时闯内就能得到试验结果,比一般试验方法快几十倍。 As the life of agricultural machinery (including mechanical transmission) depends on the load size and frequency characteristics (spectral density). Therefore, the device (load loader) capable of repetitively generating load usage cases and probabilistic characteristics plays a significant role in the bench test of Miyagi transmissions. In addition, the repeatability of load-bearing conditions is a necessary prerequisite for fast life testing, which results in a very short burst of test results, several tens of times faster than typical test methods.