Floatable Thrust Plate Assembly for Compressor Shaft Wear Reduction
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Solution Overview
Problem
Conventional rotary shaft support structures in compressors suffer from non-elastic deformation, leading to poor contact between the thrust plate and the rotary shaft, resulting in increased wear and noise due to manufacturing errors and stress concentration during operation.
Innovation Solution
A rotary shaft support assembly with a thrust plate that is axially floatable relative to the support seat, supported through a flexible projection, allowing for elastic deformation and improved stress distribution, reducing wear and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the thrust plate is made of hard material and fixedly mounted through fastening structure, then the thrust plate can provide stable support, but non-elastic deformation occurs causing poor contact and increased wear
Solution Approach 1:
The thrust plate material is changed from hard material to elastic material, fundamentally altering the mechanical properties. This allows the thrust plate to deform elastically under load, accommodating manufacturing errors and maintaining continuous contact with the rotary shaft shoulder, thereby resolving the contradiction between support stability and contact quality
Solution Approach 2:
The thrust plate is designed to be floatable in the axial direction rather than fixedly mounted. This dynamic capability allows the thrust plate to automatically adjust its position and maintain optimal contact with the rotary shaft during operation, eliminating the non-elastic deformation issues caused by rigid fastening
2Stability of the object's composition
If the thrust plate is fixedly mounted through bolt or pin, then the thrust plate can be securely attached, but over-positioning causes non-elastic deformation and stress concentration
Solution Approach 1:
The fastening structure (bolts or pins) is completely removed from the design. The thrust plate is no longer fixedly mounted but instead floats freely in the axial direction on the support seat. This extraction of the constraining element eliminates over-positioning and the associated non-elastic deformation and stress concentration
Solution Approach 2:
The thrust plate transitions from a statically fixed position to a dynamically adjustable position. By allowing axial floatability, the system enables the thrust plate to automatically find its optimal position under load, distributing stress evenly without the concentration caused by rigid over-positioning
3Device complexity
If the thrust plate is made rigid, then the structure is simple, but wear is easily generated between the rotary shaft and thrust plate during operation
Solution Approach 1:
The material property of the thrust plate is changed from rigid to elastic. This single parameter change enables the thrust plate to deform under operational loads, maintaining continuous contact with the rotary shaft shoulder and distributing wear across the entire contact surface, thereby significantly improving wear resistance while keeping the structure simple
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
The assembly provides stable support to the rotary shaft, reduces wear, and minimizes noise by distributing stress evenly and preventing concentration on the thrust plate.
Implementation Method 1
the thrust plate is floatable in an axial direction relative to the support seat... allowing for elastic deformation and improved stress distribution
Data Source
AI summary
The present application relates to a rotary shaft support assembly and a compressor. The rotary shaft support assembly includes: a support seat, which is provided with an orifice; and a thrust plate, which is supported on the support seat so that a through-hole of the thrust plate is axially aligned with the orifice of the support seat. The thrust plate is floatable in an axial direction relative to the support seat. The compressor includes the rotary shaft support assembly. With the rotary shaft support assembly and the compressor according to the present application, a rotary shaft can be stably supported during operation of the compressor, and the distribution of stress on the thrust plate of the rotary shaft support assembly can be improved, thereby avoiding the concentration of stress, reducing wear, and reducing noise.