Formed inside a housing of a slewing unit are: an upper outer space located outside a piston in the radial direction, and at least one supply passage that guides, inward in the radial direction, a lubricant that has passed through a lower space, an outer passage, and an upper outer space in this order, to the lubricant to a plurality of brake members located below the piston. The plurality of brake members are disposed above a speed reducer and receive pressing force from the piston to brake the rotation of a rotation shaft before the rotation is decelerated by the speed reducer.
TURNING UNIT OF CONSTRUCTION MACHINE
2024-09-26
Patent
Electronic Resource
English