Rotation-Type Construction Machine

A swing-type construction machine comprising:

• a working device including a plurality of hydraulic actuators;
• a swing cylinder that swings the working device in a horizontal direction;
• a swing post that is rotatable in a horizontal direction and on which the working device is mounted;
• a bracket that is connected to the swing post via a vertically extended connecting pin;
• a upperstructure having a swing frame on which the bracket is fixed;
• a control valve that is arranged on the upperstructure;
• a plurality of working device pipes that connect the control valve with corresponding ones of the plurality of hydraulic actuators;
• a swing frame side holding body that holds a part of the plurality of the working device pipes which is located at a side of the swing frame;
• and
• a swing post side holding body that holds a part of the plurality of the working device pipes which is located at a side of the swing post,
• the swing post having a horizontal hollow into which the plurality of the working device pipes are inserted and is arranged on a position of an opposite side of a swing cylinder across the connecting pin;
• and
• the plurality of the working device pipes being arranged such that they extend along a horizontal direction between the swing frame side holding body and the horizontal hollow of the swing post, and when inserting the plurality of the working device pipes into the horizontal hollow of the swing post, the plurality of the working device pipes are inserted therein so as to wrap around the connecting pin, and at a position upper than a position where the plurality of the working device pipes are inserted into the horizontal hollow of the swing post, an extending direction of the plurality of the working device pipes is reversed, and in the reversed state, the plurality of the working device pipes are clamped by the swing post side holding body so that the plurality of the working device pipes extend upwardly thereafter, wherein,
• the swing frame side holding body is configured by a first clamp that is provided with a plurality of stages of holding portions including a first stage holding portion and a second stage holding portion, and the plurality of the stages of the holding portions respectively clamp corresponding pipes of the plurality of the working device pipes, and
• the swing post side holding body is configured by a second clamp having a first stage holding portion for clamping the plurality of the working device pipes that are clamped by the first stage holding portion of the first clamp and a second stage holding portion for clamping the plurality of the working device pipes that are clamped by the second stage holding portion of the first clamp.