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Industrial robots with advantages of highly flexible, high positioning accuracy, high-efficient production, continuous operation capability in the harsh environment, can effectively replace all kinds of complex operations and high-intensity labor which cant be completed by the existing manual operation. The structural characteristic and use of the catenary abrator is described in this paper. Based on the current production status, catenary shot blasting machine workpiece handling methods are elaborated. This paper describes the use of the robot which can work quickly and efficiently loading and unloading.

This article discussed the compound impact-abrasive wear behavior of shots impeller pair in shot blast cleaning. The shots impeller pairs were fabricated by investment casting processing. The predominance and shortcoming of investment casting for high chromium wear resistance materials used in shot blasting machine were also analyzed. Using investment casting technology, the high-Cr iron casting would be improvement in interal and explicit quality. And, owing to different included angles of shots, the blade show different wear behavior. The ideal included angle of shots is 12o. Increase in the angles leads to decreases of the wear resistance.

This paper was based on many pre-existing or being successful tunnel projects for study. Through in-depth investigation and analysis of the action mechanism on rock and the construction control under complex geological conditions, the author synthesized the technical advantages of the drilling-blasting method and tunnel boring machine technology into integration as a new drilling-blasting machine method applied in tunnel (lane) excavation. If this method intended by conventional process, it’s difficult to realize mechanized continuous excavating. In this problem, the author put forward two new technologies named helicoid tunnel face and shallow blasthole close blasting to improve. Respectively from the theory, economic, technology and safety, the paper demonstrates the feasibility of drilling-blasting machine method.

The level of mobile shot blasting machine analysis, a mechanical model of the projectile with the blade and shot rounds of dynamic simulation model, the model by imposing constraints and external forces, analysis of air resistance, friction, blade length and projectile diameter of throw playing speed. Played by the speed of analysis can throw further analysis of various parameters on the effect of throwing fight.

A three-dimension discrete element model of the shot blasting machine has been established to study the principles of shots flow motion in shot blasting machine. The three-dimension discrete element method (EDEM) was used to analyse the shot-motion process inside the shot blasting machine. The dynamic law of shots motional process inside shot blasting machine was shown through simulation.