290HC Mast SectionWhat are tower crane safety devices and what are their functions?
What are tower crane safety devices and what are their functions? Tower crane Construction Co., Ltd. (http://www.fx68.net) has advanced tower crane production and management technology. In this paper, the role of tower crane safety device will be analyzed and discussed with you.
290HC Mast Section：
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Hook safety device:
The main purpose is to prevent the lifting hook from falling when the tower crane is working. This device is equipped with a spring gland at the opening of the hook. If the gland cannot be opened upward, it can only be pressed downward to prevent the rigging from escaping from the opening.
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Drum fuse:
It is mainly to prevent the steel wire rope from being able to run in line on the drum when the transmission mechanism fails, so as to cross the end flange of the drum and cause rope biting and other accidents.
Ladder retainer:
(1) when the passage height of the ladder is greater than 5m, a retainer shall be set at 2m above the platform. The retainer shall be kept in good condition without excessive deformation, few laps, open welding, etc.
(2) when the ladder is set inside the structure, if the distance between the ladder and the structure is less than 1.2m, no protective ring may be set.
290HC Mast Section：
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