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变矩器作为液力传动的元件之一,它能根据负荷大小的变化,自动减速增扭或加速减扭。这种自动调节功能,对于土方作业的机械来说,是非常可贵的。 变矩器的传动效率较低,其功率损失主要发生在:传动介质的泄漏损失,因各工作轮之间必然存在装配间隙,势必有部分液体没有参加各轮之间的能量交换,而将自身的能量转换成热能而散发掉;传动介质的摩擦损失:变矩器的传动介质,通常采用22＃透平油或汽轮机油,这些油都具有一定的粘度,而且变矩器内油液的流速是很大的,液层之间,液体与各轮叶片之间势必产生摩擦,使部分能量也转换成热能。这两种损失是不可避免的,其值并不太大(约占总能量的10％～15％),使用中也不会发生太大的变化;各工作轮进口处的冲击损失:传动介质在各工作轮循环过程中,在相邻两轮的进出口处,液体的流速一般情况是与叶
Torque converter as one of the components of the hydraulic transmission, it can automatically change the speed according to the load changes by twisting or accelerating twisting. This automatic adjustment function, for earthwork machinery, is very valuable. The torque converter transmission efficiency is low, the power loss occurs mainly in the transmission medium leakage loss, due to the inevitable assembly gap between the working wheels, there is bound to be part of the liquid did not participate in the exchange of energy between the wheels, and will own Of the energy is converted into heat and emitted; Transmission medium friction loss: the transmission medium of the torque converter, usually using 22 # turbine oil or turbine oil, these oils have a certain viscosity, and torque converter fluid flow Is very large, between the liquid layer, the liquid and the inevitable friction between the leaves, so that part of the energy is converted into heat. These two losses are inevitable, the value is not too large (about 10% of the total energy ~ 15%), will not change too much in use; Impact loss of the work round the entrance: the transmission medium In the cycle of the work round, in the adjacent two rounds of import and export, the liquid flow rate is generally the case with leaves