Axle of the trailer coupling device, a large agricultural equipment

摘要

The present invention is formed axle keyway and threaded at both ends and lower the axle is equipped with a ball signed and a seating portion that is inserted is coupled rotationally fixed to the upper surface is in close contact with the bottom surface of the structural frame of the trailer , one is formed in a plate shape having a plurality of protruding bolt is protruding perpendicularly to the inner edge portion and the opposite ends of the axle hwilgo are joined together with government and key penetration , the present invention relates to the axle of the trailer coupling device for large farm machinery are equipped with locking screw is fastened with screws provided on both ends of the axle . ;