| 摘要 |
PURPOSE: An arrangement for fixing rotavator blades is provided to improve the fixing force of blades and to bear generated load during rotating them by inclining the hilling blades at defined angle to the rotating direction and by surface-contacting them with the fixing flange, and to improve the plant growth rate by deeply hilling the earth. CONSTITUTION: The arrangement for fixing rotavator blades includes; a blade fixing plate(10) on whose center an insert hole(11) of a rotation shaft(40) is formed to be bolt-fastened in the rotation shaft(40), on whose outer diameter a radially protruded fixing flange(13) is shaped, and in which many plate fixing holes are formed on the outer diameter of the insert hole(11) and a pair of blade fixing holes(14) are formed on the fixing flange(13) at an inclined angle of 35-45° to the rotation direction; rotation blades(20) on whose lower part a pair of flange fixing holes are formed corresponding to the blade fixing holes(14); and a bolt-fastened auxiliary fixing flange(30) which can connect two fixing flanges with each other so that the rotation blades(20) can be fixed into the fixing flange(13).
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