The six major problems of stage machinery design must be paid attention

Release time:

2023-05-24

Summary： In the design of stage machinery, there are some problems that are easy to be ignored or missed, but it is precisely the place where accidents occur. The stage machinery curtain raises six issues that need attention. First of all, the connection between the equipment base and the foundation or rack is a very important safety part and cannot be ignored. In the calculation, should consider the force characteristics, fastening requirements, pre-tightening force and a single bolt calculation, tightening torque and pre-tightening force control and bolt strength level and material selection and other factors.

In the design of stage machinery, there are some problems that are easy to be ignored or missed, but it is precisely the place where accidents occur. The stage machinery curtain raises six issues that need attention.

First of all, the connection between the equipment base and the foundation or rack is a very important safety part and cannot be ignored. In the calculation, should consider the force characteristics, fastening requirements, pre-tightening force and a single bolt calculation, tightening torque and pre-tightening force control and bolt strength level and material selection and other factors.

Secondly, because the stage machinery design often lags behind the civil design, sometimes it is impossible to provide embedded parts drawings, only the expansion anchor bolt can be used as the connection between the equipment and the building structure. Therefore, it is necessary to have a thorough understanding of the installation method, installation procedure and failure type of the expansion anchor bolt, and to have sufficient understanding of the product situation, application scope and installation precautions of the expansion anchor bolt.

Third, the use of chemical bolts is also increasing, the need for a careful understanding of the use of methods, rational use. Chemical bolts are bonded to the screw and the hole wall by synthetic resin mortar, and are pulled out by the joint action of the grip and mechanical bite force with concrete, and shear by the bolt itself. When in use, it is necessary to calculate various mechanical indexes according to the data provided by the manufacturer, and strictly control the construction procedure and construction quality.

Fourth, the design of transmission parts needs to pay attention to the principles of reasonable force, reducing stress concentration, strength, rigidity, corrosion resistance, high temperature resistance, good processing technology, and convenient installation and disassembly.

Fifth, regarding the lifting (hoisting) mechanism, it is necessary to understand the utilization level and working level of the mechanism in the crane design standard and its influence on the selection of components, pay attention to the relationship between the strength of the wire rope and the strength of the rope fixing joint, pay attention to the difference between the safe working load and the minimum breaking load of the product when using the rigging screw buckle, and the strength level of the life-saving series shall be selected according to the first grade.

Finally, the diameter of the drum also needs to be paid attention to. It is recommended to use a standard groove and select the drum diameter according to the working mechanism of the higher level. The safety of stage machinery must start from the design and run through the various stages of manufacturing, installation and commissioning, use and maintenance. Therefore, in the stage machinery design, the need for strict requirements, serious implementation of design procedures, careful design, calculation, review, and in the construction, testing and commissioning and operation stage to seize the key points and easy to omit, in order to ensure the safety of stage machinery.

Key words:

Installation procedure of stage machinery and equipment

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Installation procedure of stage machinery and equipment

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