SGZ630 Scraper-reducer Common Faults and Prevention;

Main causes and the analyses of the wrongly-connected axle of double-circular-arc herringbone gear reducer of beam pump;

Design analysis of API reducer;

Study on the effect of decelerating the rotation speed to multiply the torque and each grade axial clearances calculation of the disc reactor decelerator;

Analysis for Destructive Forms and Treatment Methods of Mineral Decelerator;

Application of Pro/E in the design of the small electromotor decelerator;

Approach to protact the working life of the retarder of multirope friction winder;

Study of heat_scattered equipment of the big_power_retarders used in coal_mine underground;

Research of Retarder Fatigue Test System;

Lubricating ways of the coal winning machine's speed reducer;

Fault diagnose of speed reducer used in transfer conveyor and scraper conveyor;

Optimal design of cycloid cam planetary speed reducer;

Fault diagnosis of gear reducer in pumping unit based on RBF neural network;

Amelioration and stress analysis of 910D model gear reducer case in the pumping unit;

Effect of radiators on the thermal power of gear reducers in coalmine;

Many targets integeral overall optimization system of two-stage expanson involute master spur-gear reductor;

The Effect of Hydraulic Coupler on the Shaft Breakage Of Reductor in Belt-Conveyer;