The invention discloses a dish type transmission device. A bearing (2) is arranged in the center of the upper end of a support frame (1), a connecting piece (3) is mounted on an inner ring of the bearing (2), a connecting bearing (4) is mounted at the outer end of the connecting piece (3), an inner ring of the connecting bearing (4) is connected with one end of a
diagonal transmission rod (5), a
helical tooth ring (6) is mounted right below the support frame (1), a
bevel gear wheel (7) meshed with the
helical tooth ring (6) is fixed on the
diagonal transmission rod (5), and the other end of the
diagonal transmission rod (5) is inclined downwards and penetrates through an inner round hole of the
helical tooth ring (6) to be connected with a universal
coupling (8). According to the dish type transmission device, the diagonal transmission rod can play a role of a lever, the connecting piece provides the diagonal transmission rod with levering action force in a tangential direction, and a gear in the position where the helical tooth ring and the
bevel gear wheel are meshed is taken as a fulcrum, so that the universal
coupling is driven to rotate. The dish type transmission device is compact in structure, lower in cost, small in occupied space, simple in transmission path and obvious in labor-saving effect.