Skewed slot stator iron core non-pull overlying device

Abstract

The invention particularly discloses a skewed slot stator iron core non-pull overlying device. The skewed slot stator iron core non-pull overlying device resolves the problem that an existing stator iron core overlying device damages an iron core easily in a pulling mode during the process of making bodiless lacquerware, and quality is not easy to control. The skewed slot stator iron core non-pull overlying device comprises an overlying base, wherein a column-shaped core cylinder is arranged on the overlying base, a plurality of taper slots which are vertically arranged are radially formed in the outer circumferential face of the core cylinder in an evenly-distributing mode, skewed wedges and locating taper keys are arranged inside the taper slot at intervals, the skewed wedges and the locating taper keys are in clearance fit with the skewed wedges and the locating taper keys, the upper end faces of the skewed wedges are provided with jackscrews with the lower ends contacted with the upper end of the core cylinder in a screwing mode, the inner wall of the core cylinder is provided with a fastening bolt which is fixed with the skewed wedges in a screwing mode, and the outer sides of the locating screwed keys are of a spiral structure which is matched with a stator core skewed slot. By the combination of advantages of the stator iron core of a skewed slot structure, and through a novel structure, overlying of stator iron core of the skewed slot structure is achieved, the angle of an skewed slot can be effectively guaranteed, the quality is easy to control, the process of making bodiless lacquerware is easy to achieve, and the iron core is not pulled easily, and besides, the skewed slot stator iron core non-pull overlying device has the advantages of being simple in structure, convenient to operate, and low in cost.

Description

technical field

[0001] The invention relates to a lamination device for motor stator cores, in particular to a non-strain lamination device for oblique slot stator cores. Background technique

[0002] With the vigorous development of the domestic equipment manufacturing industry, as a power unit and executive unit, the trend of motors to develop towards safety and efficiency is becoming more and more obvious, and it has become the mainstream of the world's motor demand.

[0003] At present, in the large and medium-sized generators produced in China, due to the slotting of the stator and rotor and the non-concentrated arrangement of the windings, the air gap magnetic potential contains different degrees of harmonics, and the air gap magnetic field is established by the magnetic potential, so that the air gap magnetic field is not complete. According to the distribution of the sine law, the induced potential in the winding is not completely sine wave, that is, besides the fund...

Images