LIFT ASSEMBLY SYSTEMS AND METHODS

摘要

A load assembly is provided, including an article to be lifted (e g, a batten), a drive element (e g, a cable) coupled to the article, a power mechanism (e g, an electric motor) coupled to the drive element, and a power head assembly adapted to receive power from the power mechanism and transfer it to the drive element. The power head assembly includes a power head housing, a power transfer mechanism (e g, a gear box and drum) positioned in the power head housing and coupled between the power mechanism and the drive element, and control electronics positioned in the power head housing and programmed to control operation of the power mechanism Other embodiments of the load assembly include a brake assembly, an electrical assembly, a load cell assembly and a slack line detector