Reasons for falling off of lifting objects of single beam crane

During the operation of single beam crane, if the lifting objects fall off, it will threaten the safety. Therefore, we should understand the cause of heavy load drop, strengthen prevention, avoid safety incidents.

Unsafe condition of single beam crane

One is the danger brought by the non-standard planning of single beam crane, such as overload protection failure, lack of strength of balance wheel and balance shaft, unreasonable selection of anti loosing equipment and sling, etc. Second, there are some defects in the manufacturing device, such as improper material selection and poor processing quality, which make the hidden equipment put into use. There are many problems in using links, such as not replacing reports in time. Parts scrapping, lack of necessary safety protection, improper protection and abnormal operation lead to out of control movement, parts or structure damage and non-standard safety function test. In general, any process defect (such as planning, manufacturing, installation, application, inspection, etc.) will lead to serious consequences of hook and hook falling. The essence of single beam crane safety (planning, manufacturing and installation) is to ensure the lifting operation. The basic conditions of safety.

Unsafe personal behavior

There are many influencing factors, such as the lack of driver's physiology, mind, mind and other factors, such as the lack of safety, operation, training and other operating habits, operational errors, unclear command signals, uncoordinated lifting drivers and lifting workers, and "three highs" of human biological rhythm. In general, the main causes of the accident are weak safety awareness and poor operation skills.

Environmental elements

High dust, high temperature, high humidity, low temperature, high noise, strong wind, poor lighting and other adverse environment beyond the safety limit or health standards will distract attention, directly affect the workers' response ability and the stability of single beam crane technical function, increase the opportunity of misoperation and illegal operation, and lead to accidents. It will reduce the function of the single beam crane system itself, even accelerate the failure of parts, and become one of the unsafe factors.

Disadvantages of safe handling

The handling content includes the level of safety awareness of leaders; implementation of single beam crane handling, checking and regular safety function checking; safety education and training for relevant personnel; special training for single beam crane operators to establish single beam lifting machinery safety operation procedures; establishment of illegal reward and punishment system to produce accident emergency plan, regular checking of lifting equipment and lifting accessories It can be seen that the lack of useful theoretical basis for supervision, neglect or inadequacy is one of the important reasons for the formation of single beam crane casualties.

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