Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Reconfiguration method in shrinkingon process of crankshaft for studying ship and measure for preventing deformation

A technology of structural deformation and process structure, applied in special data processing applications, instruments, electrical and digital data processing, etc., can solve problems such as reducing processing efficiency, increasing the difficulty and difficulty of machining, reducing development costs and eliminating structural deformation. , the effect of reducing difficulty

Inactive Publication Date: 2009-07-29
INST OF METAL RESEARCH - CHINESE ACAD OF SCI +2
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This brings great difficulties to the subsequent finishing of the whole shaft, seriously increases the difficulty of machining, and reduces the machining efficiency. At present, it usually takes more than 15 days to process a marine crankshaft

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
  • Reconfiguration method in shrinkingon process of crankshaft for studying ship and measure for preventing deformation
  • Reconfiguration method in shrinkingon process of crankshaft for studying ship and measure for preventing deformation
  • Reconfiguration method in shrinkingon process of crankshaft for studying ship and measure for preventing deformation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0046] The design formula of the interference δ of the red sleeve is:

[0047] δ = 1 2 [ b ( c 2 - a 2 ) ( c 2 - b 2 ) ( b 2 - a 2 ) · Torque π ...

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

No PUM Login to View More

Abstract

The invention belongs to the field of machinery manufacturing, in particular to a method for the research of the structural deformation in the process of marine crankshaft hot jacket as well as measures of deformation prevention, which are suitable for the design and the manufacturing process of a large-scale marine crankshaft hot jacket. The invention adopts the computer simulation technology to research the structural deformation rules of the process of the crankshaft part hot jacket under the traditional processing, and then quantitatively provides the method for preventing the structural deformation of the marine crankshaft hot jacket according to the structural deformation rules of the crankshaft part under the traditional processing. The method can quantitatively research the structural deformation rules of the process of the crankshaft hot jacket, and can avoid the deformation according to the preventive measures. The marine crankshaft obtained in the hot jacket way by the preventive measures can obviously reduce (even eliminate) the structural deformation caused by asymmetric geometry around the hot jacket holes, reduces reserved processing allowance during the rough machining of the parts and the difficulty of follow-up cold working, and shortens the production cycle of the crankshaft.

Description

technical field [0001] The invention belongs to the field of machinery manufacturing, specifically a method for studying structural deformation of a marine crankshaft red sleeve and a measure for preventing deformation, which is suitable for the design and manufacturing process of a large marine crankshaft red sleeve. Background technique [0002] Large-scale semi-combined marine crankshaft is one of the core components of low-speed high-horsepower diesel engines, and is the "heart" of large ships. The semi-combined crankshaft is composed of crankshaft, main journal, thrust shaft and flange shaft. The crankshaft manufacturing process mainly includes vacuum smelting, vacuum casting, forging, heat treatment, rough machining, red sleeve and complete shaft finishing. The most critical aspects of these processes are how to make forgings with good metallurgical quality and how to connect various parts such as bellcranks and spindles together. In the actual process, after the rou...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 孙明月陆善平李殿中李依依
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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