Method for Determining the Layout and Length of Stator Leads and Connections of DC Traction Motor

Abstract

The invention discloses a method for determining the layout and length of the lead and connection lines of the stator of a direct-current traction motor. With the method adopted, the problem of long trial-production periods in the prior art can be solved. According to the method of the invention, the NX is adopted to carry out three-dimensional modeling on a stator frame, a brush carrier and eachwinding; the stator frame, the brush carrier and each winding are assembled into a whole, so that the position of each winding and brush carrier joint in a three-dimensional space can be determined; the geometrical information and spatial position of the joints during stator assembly are coped into each to-be-designed connection line part by using a WAVE inter-part related modeling technology; thelead and connection line joins are connected through a spline curve; the position of each control point of the curve in the three-dimensional space is adjusted in the stator frame, so that the curvecan be in smooth transition and is arranged along the inner surface of the stator frame, so that a spatial wiring mode can be arranged, the position of the common wire clamp of the connection lines isdetermined; the length of the curve is measured in the NX, and the length of the curve and the length of the joints are added up, so that the length of the lead and connection lines and related resistance are determined. With the method of the invention adopted, the rapid design of the connection lines of the stator of the direct-current traction motor can be effectively achieved, rework cost isreduced, and a trial-manufacture period is shortened.

Description

technical field [0001] The invention relates to a method for determining the layout and length of stator leads and connection lines of a DC traction motor. Background technique [0002] The internal wiring of the stator of large and medium-sized DC traction motors is complicated, generally including inter-pole wiring (main pole, auxiliary pole, compensation), wiring between brush holders, brush holder-attached pole connection, brush holder-compensation wiring, main Pole lead-out line, attached pole lead-out line or compensation lead-out line. [0003] Due to the irregular internal space of the stator, the wiring of the stator leads and connections is a 3D curve. The traditional technology uses CAD two-dimensional drawing, which cannot accurately calculate the length of the leads and connections. It needs to be determined after the prototype is trial-produced. [0004] The connection joints are pressed by a hydraulic press, which is likely to cause connection waste and cycle...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for determining the layout and length of the stator leads and connecting wires of the DC traction motor, and solve the problem that the existing technology cannot accurately calculate the length of the stator leads and connecting wires of the DC traction motor, so that it needs to wait for the prototype to be trial-manufactured The actual measurement determines its length, which leads to the prolongation of the trial production cycle

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