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Cast aluminium rotor punching

A cast aluminum rotor and punching technology, applied to the magnetic circuit rotating parts, magnetic circuit shape/style/structure, etc., can solve the problems of different iron core lengths, inconvenient production management, long production cycle, etc., to reduce production Cost, simple structure, easy to achieve effect

Inactive Publication Date: 2011-07-13
WUXI NEW GREAT POWER ELECTRICAL MACHINE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the groove shape of the traditional cast aluminum rotor is an open groove structure. The corresponding cast aluminum mold usually includes an upper mold, a middle mold, a lower mold and a mandrel. Since the same frame number is divided into several specifications, and the iron core The lengths are not the same, so several sets of middle molds need to be equipped correspondingly, which has the disadvantages of high production cost, long production cycle, and inconvenient production management.

Method used

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  • Cast aluminium rotor punching

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Embodiment Construction

[0014] Please refer to figure 1 and figure 2 as shown, figure 1 It is a structural schematic diagram of punching a cast aluminum rotor of the present invention; figure 2 for figure 1 Partial enlarged view of A in the center.

[0015] In this embodiment, a cast aluminum rotor punch includes a punch body 1, a shaft hole 2 is opened at the center of the punch body 1, a keyway 3 is opened on the shaft hole 2, and the There are 84 grooves 4 on the radial surface near the periphery of the punching body 1. The grooves 4 adopt a closed groove structure, and the distance between the groove-shaped outer groove 5 and the periphery 6 of the punching body is smaller than the length of the air gap. 0.2mm-0.4mm, the air gap length H is 1.4mm, then the distance between the groove-shaped outer groove 5 and the periphery 6 of the punch body is 1.0mm-1.2mm.

[0016] The groove shape of the above-mentioned cast aluminum rotor punch adopts a closed groove structure. When the rotor is cast a...

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Abstract

The invention discloses a cast aluminium rotor punching. The rotor punching comprises a body, wherein a rotating shaft hole is formed in the center of the body; a key slot is arranged on the rotating shaft hole; 84 slots are arranged on the radial surface, which is close to the periphery, of the body and adopt closed slot structure; and the distance between outer slots of the slots and a periphery of the body is 1.0-1.2mm. The rotor punching has the following beneficial effects: the slots of the rotor punching are of the closed slot structure; when aluminium is cast on the rotor, the closed part is considered as the middle mould of the cast aluminium mould to prevent molten aluminium from overflowing, various iron cores with required length are convenient to process, and the rotor has simple structure and is easy to realize; and the middle mould of the cast aluminium mould is omitted and the production cost and period and the management cost are reduced.

Description

technical field [0001] The invention relates to a punching sheet of a cast aluminum rotor. Background technique [0002] At present, the groove shape of the traditional cast aluminum rotor sheet is an open groove structure. The corresponding cast aluminum mold usually includes an upper mold, a middle mold, a lower mold and a mandrel. Since the same frame number is divided into several specifications, and the iron core The lengths are also different, which requires several sets of middle molds correspondingly, which has the disadvantages of high production cost, long production cycle, and inconvenient production management. Contents of the invention [0003] The object of the present invention is to provide a cast aluminum rotor punching plate, which has the characteristics of simple structure, cost saving and short production cycle. [0004] The purpose of the present invention is to realize through the following technical solutions: [0005] A cast aluminum rotor punchi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/22
Inventor 赵卫国
Owner WUXI NEW GREAT POWER ELECTRICAL MACHINE
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