| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable a tilting correction device to be applied to various boring machines without providing a tilting correction device in a boring machine body while saving the weight of the boring machine body. <P>SOLUTION: A swinging flange 2 is swingably mounted on the lower end of a boring rod 1, and a swinging cylinder 3 having a piston which extends and contracts in both directions is fixed on a cylinder fitting base 7 provided on the boring rod 1. The tip of a V-shaped swinging arm 5 is connected to a piston 33 of the swinging cylinder 3, the base end of the swinging arm 5 is fixed to the swinging flange 2 and supported so as to be swingable coaxially with the swinging flange 2, and a link type correction guide 4, which can be outward projected by a hydraulic cylinder 41 and a link mechanism 42, is fixed on a guide fitting base 6. The link type correction guide 4 actuates the swinging cylinder 3 to correct tilting and swings the swinging arm 5 around a pin 26 as an axis to swing the swinging flange 2, thereby correcting the direction of the boring machine. <P>COPYRIGHT: (C)2012,JPO&INPIT |
