Projection ray machine

The invention discloses a projection ray machine which comprises a ray machine shell, a transmission machine part, a lens cone, a first connecting machine part and a second connecting machine part. The transmission part is provided with a first transmission part, the lens barrel is provided with a lens barrel flange, and the lens barrel flange is provided with a second transmission part. The first connecting part is connected with the light machine shell and the transmission part, and the transmission part and the light machine shell can do relative linear movement in the first direction. The second connecting part is connected with the transmission part and the lens barrel flange, the lens barrel flange and the transmission part can do relative linear movement in a second direction, and the first direction is different from the second direction. 本发明公开了一种投影光机，包括光机壳体、传动机件、镜筒、第一连接机件及第二连接机件。传动机件设有第一传动部，镜筒设有镜筒凸缘，且镜筒凸缘上设有第二传动部。第一连接机件连接光机壳体和传动机件，且传动机件和光机壳体可作相对的第一方向直线移动。第二连接机件连接传动机件和镜筒凸缘，且镜筒凸缘和传动机件可作相对的第二方向直线移动，其中第一