In stage machinery design, there are some issues that are easily overlooked or overlooked, but they are precisely where accidents occur frequently. The stage mechanical screen has raised six issues that need attention.

Firstly, the connection between the equipment base and the foundation or rack is a crucial safety component that cannot be ignored. When calculating, factors such as force characteristics, fastening requirements, pre tightening force and individual bolt calculation, tightening torque and pre tightening force control, bolt strength level and material selection should be considered.

  Secondly, due to the fact that stage machinery design often lags behind civil engineering design, it is sometimes impossible to provide pre embedded part drawings, and only expansion anchor bolts can be used as connections between equipment and building structures. Therefore, it is necessary to have a deep understanding of the installation method, installation procedures, and failure types of expansion anchor bolts, and to have sufficient knowledge of the product situation, application scope, and installation precautions of expansion anchor bolts.

  Thirdly, the use of chemical bolts is also increasing, and it is necessary to carefully understand and use them reasonably. Chemical bolts are bonded to the screw and hole wall through synthetic resin mortar, and resist pulling by the combined action of grip force and mechanical biting force with concrete, while resisting shear by the bolt itself. When in use, it is necessary to calculate various mechanical indicators based on the information provided by the manufacturer, and strictly control the construction procedures and quality.

  Fourthly, the design of transmission components should pay attention to principles such as reasonable stress distribution, reduction of stress concentration, strength, stiffness, corrosion resistance, high temperature resistance, good processability, and easy installation and disassembly.

  Fifthly, regarding the lifting (hoisting) mechanism, it is necessary to understand the utilization level and working level of the mechanism in the crane design standards, as well as their impact on component selection. Attention should be paid to the relationship between the strength of the steel wire rope and the strength of the rope fixing joint. When using the cable spiral buckle, attention should be paid to the difference between the safe working load and the minimum breaking load of the product, and the strength level of the life-saving series should be selected according to the regulations of the higher level.

  Finally, attention should also be paid to the diameter of the drum. It is recommended to use standard grooves and select the drum diameter according to the higher-level working mechanism. The safety of stage machinery must start from design and run through various stages such as manufacturing, installation, commissioning, use, and maintenance. Therefore, in the design of stage machinery, strict requirements, rigorous execution of design procedures, careful design, calculation, and review are necessary. Key points and easily overlooked areas should be identified during construction, testing, debugging, and operation stages to ensure the safety of stage machinery.