POWER TRANSMISSION DEVICE FOR AGRICULTURAL WORKING MACHINE

摘要

PURPOSE:To smoothly carry out a guide of a spline shaft to a spline ditch and enable reasonable fitting by providing a slant guide surface inclined to lateral one side of fitting direction at the tip of spline gear of the spline shaft. CONSTITUTION:In an input shaft 11, a spline gear 34 is projected until the tip of the shaft and the tip of the gear 34 is inclined to lateral one side of fitting direction and an inclined guide surface 35 consisting of a recessed curved surface is formed. When a rotary agricultural working machine is coupled to a agricultural tractor, a spline shaft is guided so as to slide with a spline ditch 36 of input shaft 11 of rotary agricultural working machine and further guided by the inclined guide surface 35 of the spline gear 34 and inserted into the spline ditch to attain power transmitting state.