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

Large-scale cylindrical gear ring split type constraint rolling forming method

A split-type, cylindrical technology, applied in the direction of gears, other household appliances, household appliances, etc., can solve the problems of difficult to manufacture large cylindrical gear rings, difficult to fill the tooth shape, low mold life, etc., to achieve low manufacturing cost and small forming force. , the effect of easy processing

Active Publication Date: 2019-11-22
WUHAN UNIV OF TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the large cylindrical ring gear is formed by integral die forging, not only the forming force is large, but the life of the die is short, and the tooth profile is difficult to fill
Therefore, it is difficult to manufacture large cylindrical ring gears by integral die forging

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 cylindrical gear ring split type constraint rolling forming method
  • Large-scale cylindrical gear ring split type constraint rolling forming method
  • Large-scale cylindrical gear ring split type constraint rolling forming method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0033] The method for forming a large-scale cylindrical ring gear in a separate constrained rolling method comprises the following steps:

[0034] (1) The radially and axially rolled rectangular cross-section ring billet 3 is directly put into the constraining die composed of the toothed die 4 and the L-shaped die 5. Since the rolled large ring billet 3 has a large shape tolerance, There is a certain distance between the lower end surface of the rectangular section ring blank 3 and the upper end surface of the tooth shape. The constraining die drives the rectangular cross-section ring blank 3 around the central axis at a speed of n 1 Rotate at a constant speed, and at the same time, a pair of symmetrically arranged tap...

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 relates to a large-scale cylindrical gear ring split type constraint rolling forming method. The method comprises the following steps that S1, a rectangular cross-section annular blank formed by rolling forming is put into a constraint mold composed of a tooth-shaped mold and an L-shaped mold, wherein the lower end surface of the ring blank is provided with a certain distance from the upper end surface of the tooth-shaped mold; S2, the constraint mold drives the annular blank to do uniform rotation at a rotating speed n1 around the center axis; meanwhile, a pair of symmetricallyarranged tapered rollers located on the outer side of the constraint mold moves to the upper portion of the annular blank in the radial direction of the constraint mold; and the first tapered roller does uniform rotation at a rotating speed n2 around the own axis, and the second tapered roller does uniform rotation at a rotating speed n3 around the own axis; and the rotating direction of the firsttapered roller and the rotating direction of the second tapered roller are opposite; and S3, after forming is finished, an ejector beam vertically moves upwards to eject a forming cylindrical gear ring. According to the large cylindrical gear ring split type constraint rolling forming method, the near-net forming of the large cylindrical gear ring can be realized, the material utilization rate ishigh, the machining efficiency is high, and the mechanical property is good.

Description

technical field [0001] The invention relates to the field of forming and manufacturing large-scale cylindrical ring gears, and more specifically, relates to a method for forming large-scale cylindrical ring gears by split constraint rolling. Background technique [0002] Large-scale cylindrical ring gears are widely used in wind power equipment, shipbuilding industry, petroleum machinery, port machinery, metallurgy and engineering machinery, etc., and the demand continues to rise. Its high-performance, high-efficiency, and low-cost manufacturing methods are researched in this field. Frontier topics. At present, the manufacturing method of large cylindrical ring gear is machining. The cutting method has a large amount of cutting, low material utilization rate, long processing cycle, low production efficiency, high production cost, and the cutting process cannot refine the grain and cut off the metal flow line, so it is difficult to meet the high performance, high efficiency,...

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): B21H5/02
CPCB21H5/025
Inventor 韩星会华林胡亚雄田端阳杨思伟
Owner WUHAN UNIV OF TECH
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com