Swing lock device for construction equipment

Abstract

A swing locking device for a construction machine is disclosed, which enables an operator in a cabin to confirm the locking/unlocking state of the locking device that locks a swing device or to operate the locking device. The swing lock device for a construction machine includes a lower driving structure, an upper swing structure mounted to swing on the lower driving structure by a swing device, a ring gear for locking the swing device formed on an outer surface of a ring gear for the swing device that forms the swing device, an actuator correspondingly formed to be tooth-engaged with the ring gear for locking the swing device to engage or disengage a locking gear fixed to a cylinder rod, an alignment setting confirmation sensor detecting whether setting is completed by the tooth-engagement between the ring gear for locking the swing device and the locking gear through driving of the actuator, and a swing lock/unlock detection sensor detecting a swing lock state in which the locking gear is engaged with the ring gear for locking the swing device or a swing unlock state in which the locking gear is disengaged from the ring gear (10) for locking the swing device through the driving of the actuator.

Dependencies are inferred from the claim text.