Accurate measurement appurtenance of steam turbine labyrinth clearance

The utility model provides an accurate measurement appurtenance of steam turbine labyrinth clearance, it relates to a measuring tool. The utility model discloses a solve present vapor seal tooth and stroke the method of joining in marriage with the rotor through the in -site measurement, measure each cover size, to obtain the machining dimension error big through calculating, the yi overproof problem in clearance. The utility model discloses it includes the first location body (1), the second location body (2) and card foot (4), the longitudinal section of the first location body (1) be the rectangle, and the second location physically longitudinal section of (2) is irregular polygon, the lower extreme of the second location body (2) is equipped with one calorie foot (4), and the right side that the body (2) is located the first location body (1) is fixed a position to the second, and is less than the upper end of the first location body (1) on the second location body (2). The utility model is used for the measurement of steam turbine labyrinth clearance.