1, the improvement of the reduction gear, the reduction gear material from 45 steel to 40Cr, high-temperature fans after the mechanical properties and hardness, not only can effectively prevent plastic deformation of the gear teeth, and the gear has sufficient resistance to wear and pitting ability.

　　2, the installation of improvements, in order to make high-temperature fans run smoothly, shall not have periodic impact noise, in the installation or replacement of reduction gear, must ensure that the two gear transmission contact spot along the tooth length of not less than 65%, along the tooth height of not less than 45%.

　　3, manufacturing improvements, in order to make the tooth core material has sufficient toughness, in order to prevent local fracture phenomenon when the gear teeth are overloaded, we require an appropriate increase in the radius of the tooth root transition fillet during manufacturing, to eliminate the processing knife marks there, so as to reduce the stress concentration.

　　Improvements in high-temperature fans can effectively increase its function, and after the improvement of the fan, in the generation of wind energy this piece, to obtain a greater role. The improvement does not change some basic functions.