Mechanism for acquiring angular position of crankshaft

The invention provides a mechanism for acquiring the angular position of a crankshaft. The mechanism comprises a positioning mechanism, a frame and a support mechanism, wherein the frame is assembledon the lower end surface of the positioning mechanism; the support mechanism is arranged on the lower end surface of the frame; the positioning mechanism comprises a motor, an axial limiting block, acrankshaft rolling seat, a crankshaft main body, an axial positioning machine, a bottom plate, a blocking pin positioning plate, a synchronous wheel, a synchronous belt, a driving roller, an electricpush rod and a pre-tightening spring; and the support mechanism comprises a limiting rod, a connecting rod, a screw rod, a telescopic plate, a pressure plate, a compression spring I, a cleaning rod, acompression spring II, movable wheels, a movable plate, a support plate, a slide rod, a push rod and a compression spring III. Compared with the prior art, the mechanism provided by the invention hasthe following beneficial eff