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Tooth pressing plate for compacting stator and rotor core of large motor

A technology of large motor and tooth pressure plate, which is applied in the manufacture of stator/rotor body, magnetic circuit rotating parts, magnetic circuit shape/style/structure, etc., which can solve the problems of large tooth expansion of motor tooth pressure plate and easy breakage of teeth. , to achieve the effect of increasing the stacking pressure, preventing the deformation of the spring, and solving the problem of excessive stress and broken teeth

Inactive Publication Date: 2016-07-06
CRRC YONGJI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention solves the problems of the existing motor tooth pressure plate with large tooth expansion and easy breakage of the teeth, and provides a tooth pressure plate for pressing the iron core of the stator and rotor of a large motor

Method used

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  • Tooth pressing plate for compacting stator and rotor core of large motor
  • Tooth pressing plate for compacting stator and rotor core of large motor
  • Tooth pressing plate for compacting stator and rotor core of large motor

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Embodiment Construction

[0012] The tooth pressure plate for pressing the stator and rotor iron core of a large motor includes a tooth pressure plate body, the pressure plate body 1 of the tooth pressure plate body is provided with a side facing the opposite side of the tooth bead 2, and a lamination groove 4 penetrating with this side; The connecting hole 3 is located in the laminated groove 4 .

[0013] The tooth pressure plate is a high-strength alloy steel tooth pressure plate. The root of the lamination groove 4 is arc-shaped chamfered. The thickness of the tooth bead 2 is the sum of the thickness of the pressing plate body 1 and the deformation of the lamination groove 4 under the lamination pressure (ie the depth of the lamination groove 4), and the depth of the lamination groove 4 ranges from 1 to 6 mm.

[0014] When in use, two tooth pressing plates 7 are respectively placed on both ends of the laminated silicon steel sheet 6, and the lamination groove 4 is arranged inwardly facing each othe...

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Abstract

The invention relates to the field of motors, in particular to a tooth pressing plate for compacting a stator and rotor core of a large motor, and solves the problems of large tooth expansion amount and easy tooth breakage of an existing motor tooth pressing plate. According to the scheme, the tooth pressing plate for compacting the stator and rotor core of the large motor comprises a tooth pressing plate body, wherein an overlying groove facing to one opposite side surface of tooth pressing strips and communicating with the side surface is formed in one surface of a pressing plate body of the tooth pressing plate body; and connecting holes are formed in the overlying groove. The tooth pressing plate has the advantages that 1, high-strength alloy steel meeting a strength requirement is selected and used according to a requirement of overlying force, so that the problems of excessive tooth root stress and tooth breakage of the tooth pressing plate are solved; and 2, the axial elastic bounce amount of a tooth root is calculated according to the requirement of the overlying force and pre-added to the thickness of the tooth pressing strips, and the overlying groove bends and deforms in a process of compacting silicon steel sheets by the tooth pressing plate to increase the overlying force, thereby effectively preventing the tooth expansion problem caused by bouncing deformation of the tooth pressing plate.

Description

technical field [0001] The invention relates to the field of motors, in particular to a tooth pressure plate for pressing the stator and rotor iron cores of large motors. Background technique [0002] The stator and rotor iron cores of large motors are laminated by a certain number of silicon steel sheets (punched sheets) into an integral iron core. The compression of the iron core has a great influence on the electrical performance of the motor. The tooth pressure plate is the silicon steel sheet after lamination. Connecting parts for fixing on both ends (as attached figure 1 , 2 shown). The existing tooth pressure plate includes an arc-shaped pressure plate body 1, and the arc-shaped side of the pressure plate body 1 is uniformly connected with the tooth portion bead 2 that matches the tooth shape of the silicon steel sheet. Equal thickness; the pressing plate body 1 is provided with a connection hole 3 . For the stator and rotor of medium and large motors, the stampin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/18H02K1/28H02K15/02
CPCH02K1/18H02K1/28H02K15/02
Inventor 朱红燕王成周会军王裕峰安康平
Owner CRRC YONGJI ELECTRIC CO LTD
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