CHECKING DEVICE FOR BLADES

摘要

The invention refers to a tester for mixed-flow turbine impeller blades in the leading edge and rear edge area for both blade back and the active surface of the blade.The blade tester consists of a base plate with a hole in which a gliding segment revolves around a centre that coincides with the theoretical centre of angle testing. The blade back and active surface nozzle may accurately determine the profile thickness through their translation perpendicularly on the average fibre of the profile. The nozzles are fastened using a thin plate, a thick plate and screws.