Water turbine runner positioning, assembling and welding method based on wedge-shaped auxiliary devices
A technology for auxiliary devices and water turbines, applied in auxiliary devices, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problems of assembly, poor positioning accuracy, reduce labor intensity, reduce production costs, etc., and achieve compensation for welding shrinkage, The effect of simplifying the assembly process and improving the accuracy of assembly and welding
Pending Publication Date: 2022-02-08
DONGFANG ELECTRIC MACHINERY
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The invention relates to the technical field of water pump turbine runner sub-disc assembling and welding accurate positioning, in particular to a water turbine runner positioning, assembling and welding method based on wedge-shaped auxiliary devices. According to the present invention, a runner is positioned, assembled and welded by adopting an inverted assembly sequence, an upper crown blade disc, an inner ring blade disc and an outer ring blade disc are machined by setting a unified machining reference through a numerical control machine tool, and the wedge-shaped auxiliary devices are arranged in the circumferential direction of the upper crown blade disc at intervals and installed in a flow channel of the upper crown blade disc; the upper crown blade disc is adjusted to move upwards on an assembling platform to be aligned and fixed; and the inner ring blade disc and the outer ring blade disc are sequentially placed and adjusted to weld all the assembly components according to the structural requirement of a rotating wheel, and a welding flux is waited to be cooled. According to the technical scheme, on the basis of two starting points of accurately assembling the rotating wheel and shortening the assembly period, the labor intensity is reduced to a certain extent, the assembly period is shortened, and the production cost is reduced to a certain extent while the assembly accurate positioning and universality are guaranteed.
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Property | Measurement | Unit |
Slope angle | 10.0 ~ 20.0 | deg |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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