APPARATUS FOR TIGHTENING THREADED FASTENERS

摘要

Apparatus for use with a tool assembly in operations of tightening or loosening threaded fasteners (230) about an axis are disclosed, and in one example includes: a lower clamp assembly (110); an upper clamp assembly (120); a reaction adaptor assembly (130); and a spring assembly (140) formed between the upper clamp assembly and the reaction adaptor assembly. Advantageously an operator can tighten or loosen ail fasteners without having to change the initial setup of the apparatus. The lower clamp assembly eliminates the need for extra operators and heavy and bulky equipment to hold the apparatus near the fasteners. The upper clamp allows the operator to rotate the apparatus around with ease. The spring assembly stabilizes and eases vertical height adjustment of the apparatus. The reaction adaptor substantially negates reaction turning forces of the tool assembly during the operations. Drive knobs (312, 322) provide easy alignment of and quick and safe mounting of the tool assembly (310, 320) on the fasteners. Bolting operations about an axis are completed faster, cheaper and with little or no risk of operator injury.