LOCK DEVICE FOR DOZER BLADE OF WHEEL TYPE EXCAVATOR

摘要

The present invention locks and unlocks the doser braid, which is installed by the cylinder behind the wheel type excavator, by only raising or lowering, so that the dozer braid of the wheel type excavator prevents the dozer blade from falling even if there is a cylinder misoperation. A lock apparatus, comprising: a doser braid arm having one end coupled to a dozer braid at a rear thereof, and the other end coupled to be pivotally supported with a vehicle body frame; In the wheel-type excavator consisting of: a dozer braid cylinder, one end of which is rotated to the dozer braid, the other end is coupled to the body frame, respectively, forming a longitudinal long hole having a predetermined width on one side of the body frame, facing the long hole An L-shaped stopper plate having a longitudinal groove formed at a predetermined position is fixed to the vehicle body frame, and an upper portion of the groove is formed with a ring-shaped position conversion unit and forms a turning bracket that slides in / out of the groove. On the other hand, forming a through hole on one side of the dozer braid arm and guides the locking means detachable by the withdrawal to the long hole by the horizontal elastic operation in the through hole and in-situ position change by the turning bracket when the dozer braid is raised or lowered. It is fixed by bracket.