In order to study the components temperature of vehicle transmission device

using thermal network method

a model of transmission components temperature of vehicle transmission device is established based on the basic theory of heat transfer theory

and a solving method is proposed.With a certain type of armored vehicle transmission device

the transmission components temperature is calculated

the transmission components temperature under different working conditions are obtained

and the comparison between calculated results with experimental results is carried out.The results show that

under highest speed condition

the maximum transmission component temperature lies at the third shaft of the transmission device

under the maximum load condition

the torque converter temperature is the highest

the side-reducer temperature is higher than that under the highest speed condition.