Control system design of hoisters based on single-chip microprocessors;

The operation process of the Second Blast Furnace is described and the composition and working principle of the DC adjustable speed control system are introduced indicating how accurately and last the Siemens 6RA24 DC adjustable speed device controls the speed of the hoister motor.

Hoisting assembly methods of the rapid gate of water inlet use for winch & pulley block for the Three Gorges Engineering Under-ground Power Statation;

The development history of asphalt mixing plant is overviewed,the development of winch control sys- tem is summarized,the structure and characteristics of all kinds of winch control system are analyzed,which provides reference for the design,use and maintenance of hot storage bin winch control system of asphalt mixing plant.

An accident of safety in production was caused by a locking pawl which cracked during architectural windlass operating and disengaged from clutch,by means of examining material chemical composition,testing mechanical properties and macro-and-micro analytical method,the failure reason of major minor braked wheel was analyzed.

Some kinds of structure of windlass were analyzed.

An accident of safety in production was caused by a locking pawl which cracked during architectural windlass operating and disengaged from clutch,by means of examining material chemical composition,testing mechanical properties and macro-and-micro analytical method,the failure reason of major minor braked wheel was analyzed.

Dynamic Modeling and Dynamic Analysis for Multi-Flow Transmission System of Double Speed Hoist;

This paper analysed the lock itself ability for the worm gear used the hoist in detail,and discussed the every kind of influence factor for the lock itself,pointed out noticing problems in designing the worm gear used the hoist.

This thesis applied the elastic contact problem of the steel cable and the hoist drum ,combined the calculation method on the intention of mine lifter and improved it, proposed the calculation means of the hoist drum.

The present paper introduces the equipment troubles and accidents having occurred in the hoisting machine since commissioning of the sleeve type shaft kiln introduced from Focarse Italy.

This paper describes the selection and application of large hoisting machines for construction of Wuhan Yangluo Changjiang River Highway Bridge in consideration of the hauling systems of the machines and load cases of lifting and installation,compares two kinds of the hauling schemes prepared for the machines and also analyzes the relevant problems having arisen in the construction.