Magnetic pole supporting structure of synchronous motor

Abstract

The invention discloses a magnetic pole supporting structure of a synchronous motor. The magnetic pole support structure comprises a magnetic pole; two insulating base plates are respectively attachedto the two adjacent pole coils, and a wedge-shaped accommodating space and a supporting block are arranged between the two insulating base plates; an included angle theta 1 is formed between the wedge-shaped accommodating space and the supporting block, and the supporting block is embedded in the wedge-shaped accommodating space and is connected to the rotor through a bolt in a combined manner. Through the structural design of the insulating base plate and the supporting block in the magnetic pole supporting structure, it is guaranteed that the supporting block has enough adjusting space under the condition that the insulating base plate adjusts the stroke in the circumferential direction of the rotor, thereby avoiding the rework of supporting block production, reducing the manufacturingcost, and shortening the manufacturing period.

Description

technical field [0001] The invention belongs to the technical field of support between magnetic poles of a rotor with small magnetic pole gaps in the technology of large and medium-sized synchronous motors, and in particular relates to a magnetic pole support structure of a synchronous motor. Background technique [0002] In order to prevent the magnetic pole coil from being deformed along the tangential direction under the action of inertia caused by the sudden increase and decrease of the load of the motor during start-up or operation, and to prevent the increase of motor vibration or the damage of the coil insulation due to the loosening of the magnetic pole coil, in large convex A support block device is arranged between the magnetic poles of the pole synchronous motor rotor. [0003] Such as figure 1 As shown, the traditional support block device 100 is mainly composed of a support block 104, an insulating backing plate 103 and a bolt 105 (see figure 1 ). The struts ...

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the above method: due to manufacturing and assembly errors, there will be errors between the gap between the two magnetic poles and the theoretical value. At this time, the radial position of the support block 104 is often adjusted (that is, when the magnetic pole gap is greater than the theoretical value, the support block 104 moves toward the circumference. move inside; when the magnetic pole gap is less than the theoretical value, the support block 104 moves to the outside of the circumference), after the support block 104 is adjusted in place, it is connected to the shaft by the bolt 105, and the magnetic pole 101 and the insulating backing plate 103 form a complete circle on the circumference tight whole

Therefore, this situation is very likely to cause: (1) The support block interferes with the yoke or iron core, and the support block needs to be reprocessed or even scrapped; (2) The length of the closing bolt is too long or too short, and the bolt needs to be replaced

Ultimately resulting in increased manufacturing costs and longer production cycles

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