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

Double-half inner ring angular contact ball bearing with radial load larger than axial load

A technology of angular contact ball bearings and double-half inner rings, which is applied in the direction of rolling contact bearings, ball bearings, shafts and bearings, and can solve the problem that the axial load capacity of deep groove ball bearings cannot meet the requirements and cannot meet the requirements of aero-engine accessory transmission bearings Speed ​​and other issues, to achieve good working condition, optimize groove curvature coefficient, improve the effect of axial bearing capacity

Pending Publication Date: 2022-02-25
AVIC HARBIN BEARING
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problem that existing angular contact ball bearings cannot meet the working requirements of aero-engine accessory transmission bearings on the main engine with high speed and radial load greater than axial load, and the axial load capacity of deep groove ball bearings cannot meet the requirements. Requirements, and then provide a double-half inner ring angular contact ball bearing whose radial load is greater than the axial load

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
  • Double-half inner ring angular contact ball bearing with radial load larger than axial load

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0021] Specific implementation mode one: combine figure 1 Describe this embodiment, a double-half inner ring angular contact ball bearing in which the radial load is greater than the axial load. The double-half inner ring angular contact ball bearing includes an outer ring 1, a cage 2, two halves Inner ring 3 and multiple rolling elements 4, two and a half inner rings 3 are coaxially arranged inside outer ring 1, cage 2 is set on two half inner rings 3, and cage 2 is located outside two half inner rings 3 In the middle part, a plurality of rolling elements 4 are installed in the plurality of pockets of the cage 2, and the two and a half inner rings 3 adopt a gasket angle of 0-8°.

[0022] The double-half inner ring of the bearing in this embodiment adopts a gasket angle design of 0-8°, optimizes the curvature coefficient of the groove, meets the requirements of the radial load working condition of the bearing, improves the axial bearing capacity of the bearing, and satisfies t...

specific Embodiment approach 2

[0024] Specific implementation mode two: combination figure 1 Describe this embodiment, the inner diameter of the double-half inner ring angular contact ball bearing in this embodiment is d, where d=25mm, the outer diameter is D, where D=52mm, and the width is B / C, where B / C=15mm. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0025] Specific implementation mode three: combination figure 1 To illustrate this embodiment, the material of the outer ring 1 and the two half inner rings 3 of the double-half inner ring angular contact ball bearing of this embodiment is double vacuum Cr4Mo4V steel. Such setting can meet the requirements of the bearing working temperature of -40 to +250°C. At the same time, the material also needs to have stable hardness, strength, good wear resistance and high fracture toughness at high temperatures. The material of the bearing ring adopts double vacuum Cr4Mo4V steel, which has good wear resistance and high temperature dimensional temperature resistance, and can be used up to 310 °C, and the operating temperature margin meets the requirements. Other compositions and connections are the same as those in Embodiment 1 or Embodiment 2.

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 discloses a double-half inner ring angular contact ball bearing with a radial load larger than an axial load, and relates to the technical field of design and manufacturing of aero-engine accessory transmission bearings. The problems that an existing angular contact ball bearing cannot meet the working requirements that the rotating speed of an aero-engine accessory transmission bearing on a main engine is high, the radial load is larger than the axial load, and the axial bearing capacity of a deep groove ball bearing cannot meet the requirements are solved. The double-half inner ring angular contact ball bearing comprises an outer ring, a retainer, two half inner rings and a plurality of rolling bodies, the two half inner rings are coaxially arranged on the inner side of the outer ring side by side, the retainer is arranged on the two half inner rings in a sleeving mode and located in the middles of the outer sides of the two half inner rings, the rolling bodies are mounted in a plurality of pocket holes of the retainer, and the two half inner rings adopt gasket angles of 0-8 degrees. The bearing is used for meeting the requirement that the radial load of a main engine is larger than the axial load, the temperature requirement and the rotating speed requirement, and the accessory bearing can stably, effectively and reliably work all the time.

Description

technical field [0001] The invention relates to the technical field of design and manufacture of aero-engine accessory transmission bearings, in particular to a double-half inner-ring angular contact ball bearing with a radial load greater than an axial load. Background technique [0002] At present, the transmission bearings of aero-engine accessories have high speed and heavy load. The use requirement of conventional angular contact ball bearings is that the axial load is greater than the radial load. In order to ensure a large axial load capacity, the traditional angular contact ball bearings are conventionally designed as double The half inner ring adopts a gasket angle of 15°, 20° or 25°. At this time, the working state of the bearing requires that the axial load is greater than the radial load. Aeroengine accessory transmission bearings require that the radial load be greater than the axial load. For conventional angular contact ball bearings, when the radial load is g...

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): F16C19/16F16C33/32F16C33/58F16C33/62
CPCF16C19/163F16C33/583F16C33/62F16C33/32
Inventor 冯小川刘森焦岩路明颜炳新李宏宇王海澳杨金文杨子震黄亚鹏
Owner AVIC HARBIN BEARING
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