Regarding the ball mill as a rotary body being composed of end covers and barrel shell, a finite element calculation model has been established by cutting 1/4 of the said shell, the medium loads of different weight being transplanted on elements of the shell.

The welding and restoring work of cracks on the entrance end cover of ЩВ70 / 850 ball mill is summarized in the paper, which can provide some references for other power plants.

The article analyzes the problem that the connecting bolts used in QS2736 spill type ball mill\'s end cover break frequently in the dissolution technology of alumina process flow,puts forward the corresponding solution methods and preventive measures.

An improvement on machining process of cover;

The stamping technology and the structure of the die for a relatively complicated and high accuracy connecting cover of the motor were introduced.

Improvement of Rigidness of Endshield to Reduce the Axial Vibration of Motor;

Design on Equipment of Medium-Sized Motor Endshield used in Static Pressure Test

the motor is horizontally mounted(IMB3); one fan bowl is provided at top of the motor but YKK motor is provided with one air-to-air cooler;the stator frame welded with steel plates is of international conventional box construction;the bearing is type B/BJ endshield spherical sleeve bearing,VPI process is applied to the stator core with windings; and the frame, stator an.

The failure of the end cap,made of Al-Si-Cu cast alloy,has been analyzed by means of scanning electronic microscope(SEM),energy spectrum analysis(EDS) and micro-hardness test(MHV).

The application shows that this jig is suitable for the turning of this kind of parts such as the end-cover of the flange motor.