Submersible Motor Rotor Cage Casting Equipment and Process

Abstract

The invention provides rotor cage bar casting equipment and technology of a submersible motor. The technical scheme of the rotor cage bar casting equipment of the submersible motor is: a working table is arranged above a rack, a spring is arranged between the working table and the rack, the working table can make reciprocating movement upward and downward corresponds to the rack through the spring, the bottom of the working table is provided with a vibration drive part providing power for the movement of the working table, bolts are arranged on four angles of the working table and used for locating the working table on the rack and limiting the motion stroke of the working table, a mold assembly is arranged on the top of the working table, a lower mode is heated in advance firstly when being machined, true shafts are pressed in a rotor iron core part in an overlapping mode, a split pouring gate upper mode is fixed on the working table through two connecting bolts, a vibration motor is started after the rotor iron core part is heated in advance, aluminum liquid is poured from the pouring gate of the upper mode, the vibration motor stops vibrating after the pouring gate is solidified, the cast aluminum rotor part is taken out and the process is finished. The rotor cage bar casting equipment and the technology of the submersible motor can be widely applied to the casting field of submersible motors.

Description

technical field [0001] The invention discloses a submersible motor rotor cage bar casting equipment and process, belonging to the technical field of submersible motor casting. Background technique [0002] Since the production of submersible electric pumps (motors) nationwide in 1969, the cast aluminum rotor casting process is all pressure cast aluminum. This cast aluminum process is to laminate the rotor core on the dummy shaft, and use cast aluminum bottom mold and upper mold Fix the preheated iron core laminated parts on the die-casting machine (mechanical or hydraulic), use mechanical or hydraulic devices to die-cast and fill the molten aluminum from the bottom mold, and then withdraw the dummy shaft and install it into the real shaft. This process has The following disadvantages: [0003] 1. The process is complicated, the consumption of auxiliary materials (false shaft, bottom mold, lock ring, etc.) is large, and the heating energy consumption of the false shaft is la...

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Problems solved by technology

[0003] 1. The process is complicated, the consumption of auxiliary materials (false shaft, bottom mold, lock ring, etc.) is large, and the heating energy consumption of the false shaft is large;

[0004] 2. There is no feeding after the die-casting process is completed, and the end of the rotor and even the cage are easy to shrink, resulting in defects or even scrapping;

[0005] 3. The real shaft is installed after casting, the integrity of the rotor parts is poor, and the dynamic balance is difficult

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