A split-type sealing and welding mechanism

Abstract

The invention aims at providing a split type sealing weld mechanism. The technical scheme includes that the split type sealing weld mechanism is broken into parts in size, a transformer, a water passing cable, welding pliers and a control box are fixed on the upper portion of a bottom disk so as to form a triune composite structure, and the bottom disk is designed in a drawer type structure, and thereby is convenient to use and maintain. Four pulleys are arranged on the lower portion of the bottom disk, and thereby achieve movement in underground welding operation, and effectively solve problems in underground welding of generator stator windings. A contact thermometer of an alarm bell uses an end face copper thermal resistor, and a moving coil type indicating regulator and the alarm bell are arranged in the control box. When the split type sealing weld mechanism performs the welding, the control box, the welding pliers and an operator are abutted, and therefore the operator can accurately hear an alarm signal. A layer of cable clamp is added on the outer side of the water passing cable, and therefore a winding phenomenon in use is avoided, and loss of a lead wire is reduced. The split type sealing weld mechanism adds functions on a weld machine, improves applicability of the weld machine, improves economic benefit for a company, and recoups investment cost in a short term.

Description

technical field [0001] The invention relates to the field of sealing and welding production of strip-shaped wire rods of stator windings of hydroelectric generators, in particular to a split-type sealing and welding mechanism. Background technique [0002] As the number of domestic and foreign large-scale hydropower capacity-increasing transformation units undertaken by our country increases year by year, it has become the ultimate goal of each contracting enterprise to carry out overhaul and technical transformation of overdue service units and recover investment costs in a short period of time. Due to the large size of the original self-developed sealing welding machine, and the structural design only considers the stator silver-copper welding work when it is installed in each enterprise itself and on the construction site, and does not consider the welder going down the pit when the unit is overhauled. The stator joints are separated and re-welded. Due to the large size ...

AI Technical Summary

Problems solved by technology

If the water cable on the secondary side doubles and the voltage of the welding workpiece drops greatly, the welding current cannot maintain normal welding, and the separation and re-welding of the stator joints cannot be realized

In addition, the temperature alarm system of the welding machine is one of the safety protection measures for the welding machine. In the original sealing welding machine, a contact thermometer and an electric bell were installed at the end of the drain pipe of the water cable welding tongs, and it was connected with the body. The space is a soft connection, so the integrity is poor, it is not compact, and it is not easy to use and maintain

If the mouth of the drain pipe is far away from the operator, the alarm signal cannot be heard and the alarm effect cannot be achieved, which is not conducive to the safe use of the equipment

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