Processing method and processing device of shaft hole of guide vane of inner and outer water distribution ring of water turbine

Abstract

The invention discloses a processing method and a processing device of internal and external water distribution ring guide vane axle holes of a water turbine. The processing method comprises the following steps: A. marking out; B. correcting; C. roughly boring the external water distribution ring guide vane axle hole; D. roughly boring the internal water distribution ring guide vane axle hole; E. finely boring; and F. post-treating. The processing method disclosed by the invention has the characteristics of stable product quality, high precision, high efficiency and simple technique, the performance of the boring-milling machine is excellent, the technique range is extensive, the precision and production efficiency are high, the processing device has the feeding functions of a plurality of directions of upright post transverse feeding, main spindle box vertical feeding, square ram axial feeding, and the like, the boring-milling machine is matched with a rotating platform so that the location is accurate, and a processed workpiece can be rotated for 360 degrees on the rotating platform, so that holes of any angle and planes can be processed, and the processed hole and processed surface can be guaranteed to deviate from the axial line of the workpiece for a fixed angle. When being used for processing the internal and external water distribution ring guide vane axle holes of the water turbine, the processing method guarantees the coaxiality and high precision of the guide vane axle holes, simplifies the processing procedures and improves the product quality and the processing efficiency, so that the processing method has good economic benefit.

Description

technical field [0001] The invention relates to an inner and outer water distribution ring of a water turbine, in particular to a processing method and a processing device for guide vane shaft holes of an inner and outer water distribution ring of a water turbine. Background technique [0002] Water turbine is a kind of hydropower equipment widely used in the world, and its maximum efficiency can reach more than 90%. As an important part of the turbine, its water diversion components include volute, seat ring, water distribution ring, etc. The volute is located in the outermost layer and surrounds the seat ring from all sides. The seat ring is placed on the flange of the lower ring, fixed guide vanes are distributed between the upper and lower rings of the seat ring, and the water distribution ring is placed on the seat ring. The size of the seat ring and the water distribution ring are large, and they will be deformed due to welding and other factors during the installati...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for processing the guide vane shaft holes of the inner and outer water distribution rings of a water turbine and its processing device, so as to improve the inaccurate positioning existing in the existing processing technology of the guide vane shaft holes of the water distribution ring and the coaxiality of the inner and outer ring holes not meeting the requirements , low processing efficiency and other issues

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