In this paper, a new supporting equipment of primary air pipein cooler is introduced , and the design principle, main features and application situation are discussed.

This article generally describes the need to improve on Tobacco Cut-System,expounds the basics structure and working principium of Tobacco Cut-System which based on PLC and AC Servo System,the control precision reaches the purpose of the Cigarette Making and Plug Assembling Combination running stably.

By simulation and calculation,the influence of cross sustaining device to the dynamic character of bogie is basically discussed via the SIMPACK software.

By the dynamic stress test, the stress spectrum of cross sustaining device s weaking section is obtained, then the loads of cross sustaining device for the speed increased freight car in utilizing condition is identified, which offer the foundation for the load of the fatigue test.

The result can offer the foundation for evaluating the fatigue reliability of cross sustaining device.

In this paper according to the existing equipment problems in the coal face of transport level tunnel in Dayan first mine we have proposed the plan of transferring machine support unit and made the summary and analyses of the effect.