| 摘要 |
PROBLEM TO BE SOLVED: To provide a spiral rotor axle mounting structure which can suppress deterioration of working efficiency of grass cutting work by preventing grass from winding around the rotation center shaft and axle of a spiral rotor.SOLUTION: A spiral rotor axle mounting structure includes a rotation center shaft 31 connected to an axle of a control machine 1, an inner support member 22 and an outer support member 27 installed on axial both sides of the rotation center shaft 31 in a direction approximately orthogonal to the rotation center shaft 31, and a spiral blade 33 connected between these support members. In order to mount spiral rotors 20, 20', rotating in accordance with the rotation of the axle, to the axle, a cylindrical body 40 enclosing the axle in a state where the rotation is restricted is installed to a transmission case 5 supporting the axle. When one end of the rotation center shaft 31 extending from the inner support member 22 of the spiral rotor 20 is connected to the axle, the cylindrical body 40 encloses the outer periphery of the one end side of the rotation center shaft 31 extending from the inner support member 22. |
