Transmission cylinder for agricultural machinery

The utility model discloses a transmission cylinder for agricultural machinery, it includes drum, mounting flange, rand, spacing arch, the mounting flange welding is in the one end of drum, mounting flange is regular hexagon, the last spiro union hole that is provided with of mounting flange, be provided with the breach between the spiro union hole, the rand joint is at the other end of drum, theone end of rand is provided with the hem, be provided with the fixed orifices on the hem, the other end of rand is provided with the strengthening rib, the fixed orifices has been seted up on the strengthening rib, the inboard of rand is provided with the draw -in groove, the cross -section of draw -in groove is isosceles trapezoid, be provided with the fixture block corresponding with the draw -in groove on the drum, the fixture block is straight prismatic form and its cross -section is falling isosceles trapezoid, the fixture block sets up along the length of drum direction, one side of fixture block is provided wit