Modular device used for circulation and storage of rotor assemblies of electric machine

Abstract

The invention discloses a modular device used for circulation and storage of rotor assemblies of an electric machine. The modular device comprises a plurality of supporting stand columns and a plurality of rotor assembly circulation tools, each rotor assembly circulation tool is provided with a circulation bottom plate and a plurality of rotor assembly chambers, each rotor assembly chamber is of ahollow columnar structure with an opening in one end, each rotor assembly chambers is arranged on the lower portion of each circulation bottom plates in an extending mode, each opening portion of each rotor assembly chamber is arranged on the upper surface of each circulation bottom plate, and each rotor assembly chamber is used for circulation and storage of the rotor assemblies. According to the modular device used for circulation and storage of the rotor assemblies of the electric machine, the percent of pass of finished and semi-finished rotor assemblies in circulation and storage is effectively ensured, the risk of electric machine operation is reduced, the production efficiency of the electric machine is improved, the production cost of the electric machine is reduced, the stabilityand consistency of the electric machine are improved, the service life of the electric machine in batches is prolonged, and the quality of the electric machine in batches is improved.

Description

technical field [0001] The invention relates to a modular device, in particular to a modular device for turnover and storage of a rotor assembly of an electric motor. Background technique [0002] After the motor is energized, the winding of the rotor assembly cuts the rotating magnetic field of the stator to generate induced electromotive force and current, forming an electromagnetic torque and commutating through the commutator to make the motor rotate. The current flows through the commutator of the rotor assembly through the graphite brush and through the commutator of the rotor assembly. Due to the high-speed friction between the silver-copper alloy sheet of the commutator and the graphite brush during the operation of the motor, the graphite brush wears out during the high-speed friction, and the life of the motor ends when the graphite brush of the motor is worn out. In order to effectively reduce the wear of graphite brushes, it is necessary to carry out precision tu...

AI Technical Summary

Problems solved by technology

In addition, the winding of the rotor assembly is made of multi-layer winding of enameled wire in the rotor core to connect the commutator of the rotor assembly. After winding, the windings at both ends of the iron core of the rotor assembly are exposed. In order to avoid damage to the surface of the rotor winding, the enameled wire is broken and The short circuit caused by the damage of the enameled wire caused the motor to burn out. After the rotor assembly winding process is completed, the rotor winding must not be touched during the turnover and storage of the rotor assembly. The commutator of the rotor assembly is silver-copper alloy on the surface when it is running at high speed. The sheet is in conductive contact with the graphite brush of the motor due to high-speed wear and tear. The life of the motor is terminated after the graphite brush of the motor is worn at high speed. Therefore, slight scratches on the surface of the silver-copper alloy sheet of the commutator of the rotor assembly may cause it to be extremely damaged during high-speed operation. Greatly increase the wear of the graphite brush of the motor, seriously shorten the effective life of the motor, and there are serious hidden dangers

[0003] At present, two schemes are usually adopted. The first scheme is to drill holes in the wooden board and place the rotating shaft of the rotor assembly in the hole for circulation. However, since the center of gravity of the rotor assembly is on the commutator and iron core in the middle of the rotor assembly, It is very easy to cause the rotor assembly to fall during the turnover process, causing damage to the commutator of the rotor assembly and the winding of the rotor assembly. Moreover, this solution can only be placed in a single layer during the turnover and storage process, and cannot be placed in multiple layers. land area

The second solution is to use grids in the large turnover box, which indeed avoids the damage of the rotor assembly, but the large turnover box is too large, and it also expands the use of the occupied area. Components are not easy to place and take out when placing and taking them out, which affects production efficiency. The sealed state of the bottom of the turnover box and the addition of grids also cause the accumulation of impurities in the turnover box and are difficult to clean. cost too high

Images