Motor rotor for preventing rotor winding from being thrown out

Abstract

The invention relates to a direct-current motor and a winding type alternating-current motor rotor, in particular to a motor rotor for preventing a rotor winding from being thrown out, which is used for solving the problem of easiness in throwing away rotor windings during high-speed rotation of the rotor due to breakage of weftless tapes. The motor rotor for preventing the rotor windings from being thrown out comprises rotor windings wound on the rotor, wherein weftless tapes are tied at the two ends of the rotor windings; glass tape layers are formed between the end parts of the rotor windings and the weftless tapes, and fill the gaps among the rotor windings; the welftless tapes are fully contacted with the glass tape layers; the contracting degrees of the weftless tapes are the same during glue removal; and the surfaces of the weftless tapes are smooth and flat without any crack, so that the reliability of the welftless tapes is improved greatly, and a remarkable effect is achieved. The same motor rotor without the glass tape layer has the defects of a large quantity of cracks on the weftless tapes. The motor rotor is detached, the glass tape layers and the weftless tapes are formed in sequence, and drying and cooling are performed, so that the surfaces of the weftless tapes are smooth and flat without any crack, the reliability of the welftless tapes is improved greatly, and a very remarkable effect is achieved.

Description

technical field [0001] The invention relates to a DC motor and a wound AC motor rotor, in particular to a motor rotor that prevents the rotor winding from being thrown out. Background technique [0002] The rotors of DC motors and wound AC motors include rotor windings wound on the rotors. The two ends of the rotor windings extending out of the iron core are also bound with latitude-free tapes. The latitude-free tapes can prevent the rotor windings from being thrown out when the rotor speed is too high. Therefore, the weft-free tape bound at the end of the rotor winding is particularly important. The structure of the existing no weft tape binding rotor winding is as follows: figure 1 As mentioned above, the latitude-free tape bound at the end of the rotor winding is directly in contact with the end of the rotor winding; while the surface of the inclined part of the end of the rotor winding is not smooth, and there are gaps between the rotor windings, causing some latitude-f...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the rotor winding is easily thrown out when the rotor rotates at high speed due to the easy breakage of the weft-free tape, the invention provides a motor rotor that prevents the rotor winding from being thrown out.

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