SHAFT CONNECTING STRUCTURE AND SHAFT CONNECTING METHOD

To provide a shaft connecting structure which can be easily connected to a drive shaft, in a working device for performing work for a fluid pipe.SOLUTION: A shaft connecting structure comprises a working device for performing work for a fluid pipe, and a drive shaft 7 rotatably accommodated in a cylindrical frame 6 so as to transmit a rotation drive force to the working device. The working device has an input shaft 48 in which an engagement part 48a with which a tip part 7a of the drive shaft 7 can be engaged is formed at an upper end, and a joint cylinder 52 in which the input shaft 48 is disposed in an internal space, and also comprises a connecting mechanism G for connecting a lower end of the cylindrical frame 6 and an upper end of the joint cylinder 52 to each other in a state in which the tip part 7a of the drive shaft 7 is engaged with the engagement part 48a.SELECTED DRAWING: Figure 12 【課題】流体管に対して作業を行う作業装置において、駆動軸に容易に接続し得る軸接続構造が求められる。【解決手段】流体管に対して作業を行う作業装置と、作業装置に回転駆動力を伝えるように筒状フレーム６に回転自在に収容された駆動軸７とを備えている。作業装置は、駆動軸７の先端部７ａが係合可能な係合部４８ａを上端に形成した入力軸４８と、当該入力軸４８が内部空間に配置されたジョイント筒５２と、を有し、係合部４８ａに駆動軸７の先端部７ａを係合させた状態で、筒状フレーム６の下端と、ジョイント筒５２の上端とを連結する連結機構Ｇを備えた。【選択図】図１２