Function of slewing locking device for hoisting machinery

A slewing locking device for cranes is a critical safety feature. Its core function is to lock the slewing mechanism in the non-operating state or under specific operating conditions, preventing accidental rotation and thus improving the overall operational safety and stability of the crane.

The main functions of this device include: First, ensuring stability in non-operating states by mechanically or hydraulically securing the slewing platform to prevent accidental rotation caused by wind loads, external forces, or the equipment's own weight, which is especially crucial during shutdown, transportation, or maintenance. Second, enhancing operational safety by preventing uncontrolled slewing motion and reducing the risk of overturning or collisions when lifting heavy objects or in complex working conditions. Third, protecting the slewing mechanism and cables by reducing unnecessary rotation that could cause wear and tear or breakage to the slewing bearing, transmission system, and main cable. Finally, assisting in precise positioning by providing a stable reference position in certain scenarios, facilitating precise control of lifting operations.

In practical applications, slewing locking devices are commonly found in mobile cranes and other similar equipment. Their design may integrate a self-locking mechanism (such as a worm gear structure) or manual/automatic locking pins to adapt to different working conditions.