Resistance butt welding machine for welding rotor coils of steam turbine generator set

Abstract

The invention relates to a resistance butt welding machine for welding rotor coils of a steam turbine generator set. The resistance butt welding machine for welding the rotor coils of the steam turbine generator set comprises a fixed platform. A first pair of guide rail mechanisms are arranged on the fixed platform. A second pair of guide rail mechanisms and a third pair of guide rail mechanisms are arranged between the first pair of guide rail mechanisms. The axes of the first pair of guide rail mechanisms, the second pair of guide rail mechanisms and the third pair of guide rail mechanisms are overlapping. A number of welding table systems are arranged on the first pair of guide rail mechanisms through sliding grooves. Each welding table system comprises an inverted-arranged U-shaped welding support. Each welding support is provided with a hydraulic pump, a heating transformer and a shaping hydraulic shear. A controller is arranged on one side of each welding support. The resistancebutt welding machine for welding the rotor coils of the steam turbine generator set has the beneficial effects that the rotor welding quality of the generator set is easy to control, and the resistance welding quality is high; it is easy for the operating staff to master the welding method, and the assembling technology of a large-scale generator set is simplified; both sides work simultaneously,and efficiency is high; and overturning is assisted by rolling racks, and working efficiency and safety are improved.

Description

technical field [0001] The invention relates to welding equipment, in particular to a resistance butt welding machine for welding the rotor coil of a steam turbine generator set. Background technique [0002] In the installation and manufacturing process of the rotor coils of large turbogenerators, such as thermal power and hydroelectric generators, due to the large power and high current of large generators, the coils are not wound with "copper wires", but with multiple C Shaped copper plates are welded on the rotor, and this type of copper plate is called a copper bar. [0003] Copper bar reference parameters: section size of copper bar: thickness × width = 6 × 45 mm, length of rotor coil: 6000 mm, radius of rotor coil: 650 mm, since the cross-sectional size of copper bar is thickness × width = 6 × 45 mm and copper The tight fit between the row and the copper row should also consider the heating oxidation and deformation after welding. It cannot form local overoxidation, ...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the above-mentioned technical problems in the related art, the object of the present invention is to provide a resistance butt welding machine for welding the rotor coil of a turbogenerator set, which overcomes the deficiencies in the prior art, solves the complex process problem in the copper bar welding process, improves Work efficiency, ensure welding quality, reduce labor intensity of workers

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