Device for preventing rotation of highly effective brushing machine tensioning chain wheel retaining plate

The utility model provides a device of a high efficiency carding engine to prevent a dead plate of a tightener sprocket from turning. A hole arranged on a wallboard for mounting a stationary shaft is a waist-shaped hole, and is of a fixed angle from the horizontal direction; a waist-shaped cylinder is arranged in the middle of the stationary shaft; both ends of the stationary shaft are provided with external thread; the waist-shaped cylinder is the same with the waist-shaped hole in shape and size, and is movably matched with the waist-shaped hole. Another waist-shaped hole is designed in the dead plate, and the width of the waist-shaped hole is the same with the width of the waist-shaped hole in the wallboard, and the length of the hole in the dead plate is 2 to 4 times of the length of the waist-shaped hole in the wallboard. A tightener sprocket, a tightener shaft and the dead plate are connected in turn. The waist-shaped cylinder of the stationary shaft threads through the waist-shaped holes in the wallboa