Production process of large-power submersible motor cast-aluminum rotor

Abstract

The invention relates to a production process of a large-power submersible motor cast-aluminum rotor, and is characterized by including the steps of: a. die pressing: placing a mandrel on which a rotor silicon steel sheet is superposed and fixed on a bottom die, then placing an upper die, and using a piston cylinder pusher to compress the upper die and the bottom die; b. melting aluminum and removing slag: using a high-frequency melting furnace to melt an aluminium ingot, clearing away slag in molten aluminum, and introducing high-purity aluminum liquid into an aluminum holding barrel after reducing the temperature to 700 to 750 DEG C; c. casting cage bars: putting the aluminum holding barrel which holds molten aluminum in a piston cylinder barrel in the piston cylinder pusher, and rapidly pushing a piston cylinder switch; and d. assembling machining: cutting an aluminum cake, taking the upper die and the bottom die, pushing out the mandrel, installing a rotor shaft to be machined, and performing anticorrosion treatment. Short circuit rings and the cage bars are formed in one step, welding and secondary machining are not needed, physical mass is uniform in distribution, and a balance error is greatly reduced. The weight of the rotor itself is reduced, the motor efficiency and rotating speed are improved, the energy consumption is reduced, and the cost is low.

Description

technical field [0001] The invention relates to the field of submersible pump manufacturing, in particular to a production process for a cast aluminum rotor of a high-power submersible motor. Background technique [0002] Submersible electric pump is an indispensable tool for lifting water in production and life. The submersible motor is the power source of the submersible pump, so the quality and performance of the submersible motor will directly affect the normal operation of the submersible pump. Over the years, the same industry in various countries has made a lot of R&D investment in the design and development of submersible motors, but no matter what, two situations are inseparable: one is a synchronous speed motor that is synchronized with the rotating magnetic field, and the other is a motor that is synchronized with the rotating magnetic field. Asynchronous speed motors that are not synchronous. Both of these motors convert electrical energy into mechanical energy...

AI Technical Summary

Problems solved by technology

The disadvantage is that the production cost is high, the production speed is slow, the fixed shaft of the rotor is fastened with key strips, the processing loss is large, and it takes more than 4 hours. The power loss increases, the energy consumption increases, and the copper material cannot be recycled after being scrapped.

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