PARTIALLY REVERSING ROTARY TILLING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a partially reversing rotary tilling apparatus constituted of plural tilling cylinders in which rotary tine shaft cylinders of fixed tilling width are reversely rotated so as to readily maintain the tilling apparatus. SOLUTION: An output shaft 6 of a main transmission mechanism 4 for rotating and driving first tilling cylinders 30 and output shafts of auxiliary transmission mechanisms GR and GL for rotating and driving second tilling cylinders 13 in the direction opposite to that of the first tilling cylinders 30 are supported on a tilling case 1 in a concentric double shaft state. Gaps between the output shaft 6 of the main transmission mechanism 4 and the output shafts of the auxiliary transmission mechanisms GR and GL to be externally engaged with the output shaft of the main transmission mechanism are subjected to shaft sealing by dust seals. Seals are laid between the output shafts of the auxiliary transmission mechanisms GR and GL and the tilling case 1. The output shafts of the auxiliary transmitting mechanisms GR and GL are extended outward from the seal installation parts. Power is transmitted from the outward projected parts of the tilling case 1 of the auxiliary transmission mechanisms GR and GL to the second tilling cylinders 13. The second tilling cylinders 13 can be readily mounted and dismounted regardless of the inside constitution of the tilling case.