Stamping crankshaft signal wheel and engine crankshaft rotation detection mechanism

The utility model provides a stamping crankshaft signal wheel and an engine crankshaft rotation detection mechanism. The signal wheel is mounted on an engine crankshaft; the outer circle of the signal wheel is bent in the same direction to form a flange, signal teeth are formed at the joint of the flange and the signal wheel, and a signal tooth groove is formed between every two adjacent signal teeth. A crankshaft mounting hole is formed in the center of the signal wheel; according to the scheme provided by the utility model, the rotating speed detection of the engine crankshaft can be effectively realized, the occupied arrangement space is small, the balance amount change of the signal wheel is very small, and the manufacturing cost is relatively low. 本实用新型提供一种冲压曲轴信号轮及发动机曲轴旋转检测机构；该信号轮安装在发动机曲轴上；信号轮的外圆沿同一方向折弯形成翻边，翻边与信号轮衔接处形成有信号齿，相邻信号齿之间形成信号齿槽；信号轮的中心位置设有曲轴安装孔；本实用新型提供的方案，能够有效实现对发动机曲轴的转速检测，该结构方案占用的布置空间小，信号轮的平衡量变化非常小，且制造成本相对较低。