Ebh-120 Boring Machine Key Parts Of The Optimized Design

To meet the need of the high speed development of coal mine industry and deal better with the imbalance of excavating proportion in coal mine exploitation, it is urgent to manufacture the short type roadheader with better cutting capability.The design aim of EBH-120 arm-type roadheader is main in driving middle and small section of half coal rock formation tunnel and gives consideration to the whole coal tunnel. So this machine should be with big cutting power, short body, low center of gravity, compact structure, good spraying effect, and easy to load and unload, simple to manipulate and maintain, moving quickly etc. Moreover, this machine can economically cut the coal rock formation which can resists the unidirectional press intension of less than or equal 70 Mpa, and suitable for tunnel gradient of between positive 18 and minus 18 degrees. To realize those design thoughts, it should apply the optimum design wethed.Under the instrution of tutor, the engineering postgraduate aims at the design of the key accessories referring to EBH-120 arm-type roadheader to optimize design.This article takes advantage of the solid modeling method from CAD technology and processes the three-dimensional design of computer, simulated assemble and interfere examination in order to know the real-time terminal result of design. Furthermore, it processes the stress analyzing for the unsubstantial accessories such as pin-spindle, gear etc with the limited element method to made sure the reliability of these key accessories' structure so as to gain advanced, correct, reasonable design effect and apply to project in practice.