U-shaped horizontal hoisting welding tool

Abstract

The invention provides a U-shaped horizontal hoisting welding tool. The tool comprises a U-shaped frame, wherein the U-shaped frame comprises a bottom plate, a top plate and a lateral plate; the bottom plate is provided with a bottom plate free end and a bottom plate connecting end which is connected with the lower end of the lateral plate; the top plate is provided with a top plate free end and a top plate connecting end which is connected with the upper end of the lateral plate; the bottom plate free end is provided with a supporting plate which is raised toward the top plate; a screw hole in vertical direction is formed in the bottom plate close to the bottom plate connecting end, and an adjusting bolt is arranged in the screw hole; at least one hoisting balancing screw hole is formed in the top plate from the top plate free end to the top plate connecting end. According to the U-shaped horizontal hoisting welding tool, the bottom plate free end is inserted into the inner hole of a workpiece to be hoisted, and the workpiece can be in a horizontal state by selecting a proper hoisting balance screw hole and adjusting the adjusting bolt, so that the workpiece can be safely and reliably hoisted to the welding position on a cylinder, and the welding quality of the workpiece and the cylinder can be effectively guaranteed. The welding tool is convenient to hoist horizontally, and is safe and flexible in use, good in smoothness and high in working efficiency.

Description

technical field [0001] The invention relates to a welding process for inserting pipes or corrugated steel pipes and cylinders of large nuclear power steam turbines, in particular to a U-shaped horizontal lifting and welding tool. Background technique [0002] A turbogenerator set is an energy conversion device that converts thermal energy into mechanical energy and then into electrical energy. It is one of the key power equipment in power station construction. The high-temperature and high-pressure steam produced by the boiler converts heat energy and pressure potential energy through the steam turbine, and becomes the mechanical energy of the steam turbine, which drives the output shaft of the steam turbine rotor to do work. The mechanical energy is transmitted to the generator through the output shaft of the steam turbine rotor, thereby converting the mechanical energy into Electric energy, therefore, the steam turbine as the source motor is often referred to as the "sourc...

AI Technical Summary

Problems solved by technology

However, large intubation tubes and large corrugated steel pipes are often not equipped with lifting straps, so only ropes can be used for lifting, and rope lifting is difficult to ensure that the axes of large intubation tubes or large corrugated steel pipes are in a horizontal state, and it is easy to interfere with the cylinder when lifting. It is difficult to keep the large intubation pipe or large corrugated steel pipe stable during the lifting process, these factors will affect the welding quality of the large intubation pipe or large corrugated pipe and the cylinder

In addition, rope lifting needs to wrap the rope around a large intubation tube or a large corrugated steel pipe, which is troublesome to operate, takes a lot of time, and the work efficiency of welding is low

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