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Bracket-free laminated yoke rotor body structure of hydraulic generator

A technology for hydroelectric generators and laminated yokes, which is applied in the direction of magnetic circuit shape/style/structure, magnetic circuit rotating parts, etc., and can solve problems such as the inability to install rotor brackets

Inactive Publication Date: 2013-06-19
CHONGQING WATER TURBINE WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the limitation of the radial size of the yoke rotor body of the combined structure in the prior art, except for the diameter of the main shaft and the width of the yoke sector, it is impossible to install the rotor bracket, etc., the present invention proposes a hydroelectric generator without bracket laminations Yoke rotor body structure

Method used

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  • Bracket-free laminated yoke rotor body structure of hydraulic generator
  • Bracket-free laminated yoke rotor body structure of hydraulic generator
  • Bracket-free laminated yoke rotor body structure of hydraulic generator

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Embodiment Construction

[0010] attached figure 1 It is a schematic diagram of the front view of the structure of the hydroelectric generator without support laminated yoke rotor body of the present invention, and the attached figure 2 It is an axial schematic diagram of the rotor body structure of the hydraulic generator without support laminated yoke in the present invention. In the figure, 1 is the main shaft positioning step, 2 is the lower pressure plate, 3 is the main shaft positioning rib keyway, 4 is the radial key, and 5 is the Main shaft, 6 is lamination yoke. It can be seen from the figure that the structure of the rotor body of the hydro-generator with no brackets and laminated yokes in the present invention increases the diameter of the main shaft yoke section according to the width of the yoke segments, and processes positioning steps 1 and positioning ribs on the outer circle of the main shaft yoke section. The keyway 3 and the yoke sector are directly stacked on the outer circle of t...

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Abstract

The invention discloses a bracket-free laminated yoke rotor body structure of a hydraulic generator, and aims to solve the technical problem that the radial size of a combined structural yoke rotor body in the prior art is limited so that a rotor bracket cannot be arranged after the diameter of a main shaft and the widths of fanning strips of a yoke are subtracted from the radial size and the like. In the bracket-free laminated yoke rotor body structure of the hydraulic generator, the diameter of a yoke section of the main shaft is increased according to the widths of the fanning strips of the yoke; positioning steps and positioning rib key grooves are machined on the outer circle of the yoke section of the main shaft; and the fanning strips of the yoke are directly laminated on the outercircle of the main shaft, positioned by the positioning steps and then fastened and positioned by radial keys. The bracket-free laminated yoke rotor body structure of the hydraulic generator has the advantages that: the yoke is fixed on the main shaft under the condition of not arranging the rotor bracket, and the technical requirements of the yoke rotor body are met, so that not only the requirements of a high-rotating speed structure are met, but also the requirements of transportation on the structural size and packaging of the rotor yoke can be met.

Description

technical field [0001] The invention relates to the structure of a yoke rotor body of a hydroelectric generator, in particular to a structure of a yoke rotor body without a support for a hydroelectric generator. Background technique [0002] Due to the large size and weight of the yoke rotor body of large and medium-sized hydro-generators, there are many problems in its manufacture, installation, transportation, etc.; therefore, the yoke rotor body is usually divided into magnetic Parts such as the yoke, rotor bracket and hub are manufactured and transported separately, and then combined into a whole yoke rotor body in the power station, so it is called a combined structure yoke rotor body. The yoke rotor body of the combined structure in the prior art adopts the rotor bracket to connect the wheel hub and the main shaft into one body, and uses the wheel hub to fix the laminated yoke together. For medium-capacity high-speed hydro-generators, due to the limitation of the radi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/28H02K1/32
Inventor 张渝平
Owner CHONGQING WATER TURBINE WORKS
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