Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Large-scale shielding motor flywheel shell hot jacket process

A technology for shielding motors and shrink-fitting technology, which is applied in the manufacture of motor generators, electrical components, electromechanical devices, etc. It can solve the problems of difficulty in maintaining workpiece level, assembly gap and shrink-fit time, uneven heating temperature, and roundness of thin-walled parts. Poor and other problems, to achieve the effect of easy deflection, simple thermal installation, and fast heat dissipation

Pending Publication Date: 2021-10-08
HARBIN ELECTRIC POWER EQUIP
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a large-scale shielded motor flywheel housing thermal fitting process, which solves the problems of poor roundness of thin-walled parts, uneven heating temperature, fast heat dissipation, difficulty in maintaining workpiece level, assembly clearance and thermal fitting time during the thermal fitting process , to ensure the success of thin-wall parts thermal sleeve

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Large-scale shielding motor flywheel shell hot jacket process
  • Large-scale shielding motor flywheel shell hot jacket process
  • Large-scale shielding motor flywheel shell hot jacket process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Such as image 3 As shown, a large-scale shielded motor flywheel shell shrink-fit process is assembled using a crane 1, a sling 2, a first suspension ring 3, a second suspension ring 5, and an insulation cylinder 7. The method includes the following steps:

[0018] a) if figure 1 As shown, install the flywheel casing 6 into the heat preservation tube 7, adjust the flywheel casing to a circle, so that the roundness tolerance of the inner hole of the flywheel casing 6 is less than 0.1mm;

[0019] b) if figure 1 As shown, the insulation cylinder 7 equipped with the flywheel shell 6 is put into the heating furnace 8 as a whole for heating by using the second suspension ring 5;

[0020] c) if figure 2 As shown, use the crane 1, the sling 2 and the first lifting ring 3 to lift the flywheel 4, and adjust the levelness of the upper end surface of the flywheel 4 to within 0.2mm through the sling 2;

[0021] d) if image 3 As shown, after the heat preservation cylinder 7 eq...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Wall thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a large-scale shielding motor flywheel housing hot jacket process, and the process adopts a crane (1), a hanging belt (2), a first hanging ring (3), a second hanging ring (5) and a thermal insulation cylinder (7) for assembly; a flywheel housing (6) is installed in the thermal insulation cylinder (7), the flywheel housing (6) is rounded, and the roundness tolerance of an inner hole of the flywheel housing (6) is less than 0.1 mm; and the whole heat preservation cylinder (7) provided with the flywheel shell (6) is put into a heating furnace (8) to be heated by adopting a second hanging ring (5). The problems that the thin-wall part is poor in shrinkage fit roundness, uneven in heating and fast in heat dissipation, the assembly clearance is difficult to guarantee in the shrinkage fit process, the thin-wall part of the flywheel shell is prone to deflection and clamping stagnation of the flywheel in the shrinkage fit mode are solved, and the shrinkage fit quality of the flywheel shell of the thin-wall part and the performance of a shielding motor are guaranteed.

Description

Technical field: [0001] The invention relates to a heat-shrinking process of the flywheel shell of a large-scale shielded motor. Background technique: [0002] With the development and application of nuclear power technology, the safety of nuclear power plants has been continuously improved and improved, and large canned motor pumps will be widely used. This canned motor pump has upper and lower flywheels in its structure, which provide high moment of inertia for the main pump motor and ensure the idling characteristics of the main pump. The outer circle of the flywheel is installed with a casing made of alloy 625 through a thermal sleeve, which is used to protect the flywheel from corrosion. The wall thickness of the shell is 2mm, the height is 450mm, the diameter is 1000mm, and the thermal tightening amount is 0.8mm. Usually, this kind of thin-walled parts heat-fitting usually adopts the method of hoisting and leveling the thin-walled parts, heating the thin-walled parts...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H02K15/00H02K15/12H02K15/14
CPCH02K15/00H02K15/12H02K15/14
Inventor 赖俊良曲建柴文虎孙学森郑维黄秀波张韵曾张占军李光阳
Owner HARBIN ELECTRIC POWER EQUIP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com