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Press tool body structure for large-medium motor

A press-fit tool, large and medium-sized technology, applied in the field of large and medium-sized motor press-fit tool body structure, can solve the problem that it is difficult to ensure the structural strength of the press-fit tool body, it is difficult to meet the core press-fit coefficient and press-fit tolerance, and the press-fit tool body Breakage and other problems, to achieve the effect of good press-fitting effect, enhanced pressure, and improved strength

Inactive Publication Date: 2007-11-21
SHANGHAI LUFA ELECTRIC GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the small number of welding contact surfaces and the lack of matrix structure in this form, it is difficult to guarantee the structural strength of the press-fit tool body, resulting in the breakage of the press-fit tool body during the production process of the core press-fit, and it is difficult to meet the core press-fit coefficient. and press fit tolerance requirements

Method used

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  • Press tool body structure for large-medium motor
  • Press tool body structure for large-medium motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Please refer to Figure 1. A body structure of a large and medium-sized motor press-fitting tool, which consists of a shaft 1, a rib 2 and a base 4, wherein the rib 2 is a cross-shaped rib 2, including four ribs, two of which are opposite to each other. The ribs are connected together to form a rib 21 , that is, a welding matrix, and the other two ribs 22 , 22 ′ are respectively welded on the rib 21 . One end of the ribs 21, 22, 22' is set in a trapezoidal extension structure, and the other end is welded to the base 4; the bottom and side of the shaft 1 and the ribs 21, 22, 22' have one end of the trapezoidal extension structure welding.

[0021] The trapezoidal extension structure of the ribs 21, 22, 22' extends to the middle of the shaft 1.

[0022] Supporting ribs 3 are provided between adjacent ribs, and the supporting ribs 3 are vertically welded between adjacent ribs, and part of the supporting ribs 3 is welded to the bottom surface of the shaft 1 at the same time...

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Abstract

In the invention comprises: shaft, rib and base frame. Said rib comprises even numbers of fin pairs each set by face to face; one of the fin pairs has two fins connected each other, and the others are welded with said fin pair; one end of the fins is made into an echelon prolong structure, and the other end of the fins are welded with the base frame; the bottom and side-face of said shaft is connected to the one end of the echelon prolong structure. The invention can improve the firmness between the shaft and rib and enhance the strength of the tool used for pressing and securing the stator iron core.

Description

technical field [0001] The invention relates to a new structure of a press-fit tool body for a large and medium-sized motor, in particular to a new structure of a press-fit tool body for a stator core of a motor. Background technique [0002] At present, the structure of the body of the stator core press-fitting tool for large and medium-sized motors all adopts the form that the bottom surface of the shaft and the ribs are welded to each other. Due to the small number of welding contact surfaces and the lack of matrix structure in this form, it is difficult to guarantee the structural strength of the press-fitting tool body, resulting in the breakage of the press-fitting tool body during the production process of the core press-fitting, and it is difficult to meet the core press-fitting coefficient. and press fit tolerance requirements. Contents of the invention [0003] The object of the present invention is to provide a body structure of a large and medium-sized motor p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/02
Inventor 王飞朱涟朱首文
Owner SHANGHAI LUFA ELECTRIC GRP