Superhard Bearing Assemblies with Modular Carrier Segmentation

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Solution Overview

Problem

Conventional superhard bearing assemblies face challenges in manufacturing large-scale thrust and radial bearing apparatuses due to warping issues during the brazing process, making them costly and difficult to repair or replace, especially in large machinery applications.

Innovation Solution

The use of bearing-element carrier members mechanically fastened or bonded to a support ring, allowing for the attachment of superhard bearing elements, which reduces thermal warping risks and enables easier replacement and repair of worn or damaged components without disassembling the entire assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If brazing is used to attach superhard bearing elements to the support ring, then the bearing elements are securely attached, but thermal warping occurs making large bearing apparatuses difficult and costly to manufacture

Engineering Contradiction:
Improveattachment strengthVSAvoidwarping control
Core Design Contradiction:
StrengthVSManufacturing precision

Solution Approach 1:

The bearing assembly is divided into modular components: a support ring, multiple bearing-element carrier members, and superhard bearing elements. The carrier members are attached to the support ring using methods that avoid high-temperature brazing of the entire assembly, thereby preventing thermal warping while maintaining secure attachment of bearing elements through alternative fixation methods.

Inventive Principle:
Principle #1Segmentation

2Reliability

If brazing is used to attach superhard bearing elements, then secure attachment is achieved, but the bearing ring warps and becomes difficult to repair or replace

Engineering Contradiction:
Improveattachment reliabilityVSAvoidrepairability
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The bearing assembly is segmented into replaceable carrier members that can be independently removed and replaced. This modular design allows damaged bearing elements or carrier members to be swapped out without affecting the entire support ring or requiring complex repair procedures, significantly improving ease of repair while maintaining reliable bearing element attachment.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The design enables easy replacement of worn or damaged bearing elements and carrier members. Instead of repairing the entire brazed assembly, individual carrier members can be discarded and replaced with new ones, while the support ring remains intact and reusable, reducing repair costs and complexity.

Inventive Principle:
Principle #34Discarding and recovering

3Ease of manufacture

If traditional brazing methods are used, then bearing elements are attached, but the entire assembly must be disassembled for repair

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidassembly complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The bearing assembly is divided into a support ring and multiple independent bearing-element carrier members. This segmentation allows the carrier members to be attached using simpler methods that do not require complete disassembly for repair, reducing device complexity while maintaining manufacturing ease through standardized attachment procedures.

Inventive Principle:
Principle #1Segmentation

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This configuration facilitates faster and more efficient replacement of bearing parts, reduces manufacturing costs, and allows for the production of larger and more versatile bearing assemblies that can be repaired on-site, overcoming the limitations of traditional brazing methods.

Implementation Method 1

The plurality of bearing-element carrier members may be mechanically fastened to the support ring. For example, the bearing assembly may include a plurality of fasteners that mechanically fasten the plurality of bearing-element carrier members to the support ring

Methodology Applied
Scientific EffectMechanical Fastening: Mechanical Fastener

Implementation Method 2

The plurality of bearing-element carrier members may be bonded to the support ring

Methodology Applied
Scientific EffectAdhesive Bonding: Adhesive

Implementation Method 3

Brazing the superhard bearing elements into the support ring may involve high temperatures

Methodology Applied
Scientific EffectBrazing: Brazing

Data Source

PatentUS10030705B2Bearing assemblies and apparatuses including superhard bearing elements
Publication Date: 2018.07.24 US SYNTHETIC CORP
  • US10030705B2 patent drawing
  • US10030705B2 patent drawing
  • US10030705B2 patent drawing

AI summary

A bearing assembly includes a support ring, a plurality of bearing-element carrier members coupled to the support ring, and a plurality of superhard bearing elements having a lateral periphery extending between a base and a superhard bearing surface. At least one superhard bearing element of the plurality of superhard bearing elements is attached to each of the plurality of bearing-element carrier members. A bearing apparatus includes a rotor, a stator, and a bearing assembly. A method for assembling a bearing assembly includes attaching at least one superhard bearing element to each of a plurality of bearing-element carrier members and coupling the plurality of bearing-element carrier members to a support ring.