Transplanting arm of high-speed rice seedling transplanting machine

The utility model relates to a transplanting arm of a high-speed rice seedling transplanting machine. The transplanting arm comprises a transplanting arm shell, a transplanting arm cover, a pressing-out arm shaft, a spring seat, a pressing-out cam, a spring and a transplanting fork. The transplanting arm is innovatively characterized in that the two ends of the pressing-out arm shaft are respectively supported in the transplanting arm shell through a pressing-out arm shaft external end shaft sleeve and a pressing-out arm shaft internal end shaft sleeve, the pressing-out arm shaft external end shaft sleeve and the pressing-out arm shaft internal end shaft sleeve are respectively in interference fit with the transplanting arm shell, and the pressing-out arm shaft external end shaft sleeve and the pressing-out arm shaft internal end shaft sleeve are respectively in sliding fit with the pressing-out arm shaft. When the transplanting arm swings, the pressing-out arm shaft can rotate in the pressing-out arm shaft e