Automated trolley system for tightening tower segments in wind turbines

A trolley system for automatically tightening tower segments in wind turbine, the system comprising:

• a body with a first portion and a second portion at either end, the first portion mounting close to bolts and driving on top of a flange while being guided by wheels, the second portion pushing against the interior of the tower through wheels to move the body around a flange to automatically tighten the flange;
• at least one wrench socket with or without internal pattern attached to a plate and each of the wrench socket is configured to tighten each bolt placed on top rather than the bottom through torquing and/or tensioning;
• a winch with a balancer configured to screwing the wrench socket with or without internal pattern for fastening each bolt to the nut, further a small fraction of elastic deformation is recovered after torque screwing as a portion of the torsion recovers;
• a lever assembly while using springs move up and down with negligible manual force and moved from one bolt to next bolt;
• a generator configured to provide power for rotating the wrench socket for tightening the bolts through torquing and/or tensioning;
• and
• wherein a torque-to-angle of rotation ratio is continuously monitored by a sensor connected to the generator, when the gradient falls beyond the acceptable range, the generator shuts off.