Device for measuring abrasion of stroke transmission shaft bush inner bore

The utility model belongs to the technical field of mining equipment, and particularly relates to a device for measuring abrasion of a stroke transmission shaft bush inner bore. The measuring device consists of three measuring rods and a right-angle measuring scale matched with the measuring rods, one ends of the measuring rods are provided with threads, the other ends are cylinders, the right-angle measuring scale consists of a pedestal plate provided with two locating holes and a measuring scale in right-angle connection with one end of the pedestal plate, and the two locating holes are rectangular mounting holes. A method of application is that the measuring rods are respectively screwed in oil plug holes tightly, the rectangular holes on the pedestal plate sleeve the measuring rods, the height reference dimension is standard assembling of a transmission shaft is measured, in an operational process of an electric shovel, the vertical distance between the transmission shaft and a connecting line of two supp