| 摘要 |
PURPOSE: A remote controlling cutting apparatus driving structure for a sewer pipe line is provided to operate a cutting operation effectively by connecting a connecting portion of the cutting arm to a driving portion and to prevent cables from twisting by inserting cables to a principal worm gear. CONSTITUTION: A driving portion(A) is installed in a main body(5) as follows. A helical portion(11) of an actuating gear(1) is connected to an outside driving gear(7), forming the helical gear portion in a peripheral surface. A driving gear(2) forms a worm(21) on an upper end. A helical worm(22) of the driving gear is geared to both sides of the helical gear portion of the actuating gear. A principal shaft(3) has a hollow portion(32) and forms combining tools(33) to be connected to a cutting arm on an end. A worm gear(31) of the principal gear is geared to the worm of the driving gear. Thereby, driving force of a driving motor is transmitted to the cutting arm accurately because a clearance is not made between the principal shaft and the driving gear by driving the principal shaft in stable support.
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