Adjustable Vacuum Container Supporting Structure for Concentricity
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Solution Overview
Problem
Conventional high vacuum containers fail to maintain the required concentricity between the inner and outer container bodies within a tolerance of ±5 mm due to manufacturing and operational errors, as the length of heat insulating pipes calculated theoretically does not allow for adjustments during assembly.
Innovation Solution
The design introduces an adjustable supporting structure with two groups of supporting assemblies around the circumference of the high vacuum container, featuring heat insulating pipes and fixing elements with bending portions that can be adjusted using an elevating mechanism to ensure precise positioning and concentricity, replacing the un-adjustable eight-point positioning method.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the eight-point positioning method with theoretically calculated heat insulating pipes is used, then the manufacturing process is simple, but the concentricity between inner and outer container bodies cannot be adjusted and does not meet the ±5 mm tolerance requirement
Solution Approach 1:
The patent applies the dynamics principle by making the supporting structure adjustable rather than fixed. The heat insulating pipes are designed with adjustable lengths that can be modified during assembly to compensate for manufacturing errors. This dynamic adjustment capability allows the system to achieve the required ±5 mm concentricity tolerance while maintaining structural simplicity.
Solution Approach 2:
The patent implements parameter changes by varying the length parameter of the heat insulating pipes. Instead of using uniformly calculated pipe lengths, the invention allows each pipe's length to be adjusted independently based on actual positioning requirements. This parameter modification enables precise control over the inner container body's position relative to the outer container body.
2Ease of operation
If fixed-length heat insulating pipes are used based on theoretical calculation, then the assembly process is straightforward, but operational errors cannot be compensated and concentricity requirements cannot be met
Solution Approach 1:
The patent applies preliminary action by preparing adjustable heat insulating pipes in advance that can accommodate operational errors. Rather than relying on perfectly precise theoretical calculations, the invention pre-configures the supporting structure with adjustment capabilities, allowing operators to compensate for errors during assembly without complicating the overall process.
3Manufacturing precision
If the conventional eight-point positioning method is used, then the supporting structure is simple, but the concentricity tolerance of ±5 mm cannot be achieved due to accumulated errors
Solution Approach 1:
The invention transforms the static eight-point positioning structure into a dynamic system where heat insulating pipe lengths can be adjusted. This dynamic characteristic allows the supporting assembly to adapt to manufacturing variations while achieving the required concentricity tolerance, without significantly increasing manufacturing complexity.
Data Source
AI summary
A high vacuum container includes an inner container body, an outer container body, a first group of supporting devices and a second group of supporting devices. Each group of supporting devices includes four supporting assemblies, and two supporting assemblies are disposed at the upper portion of the high vacuum container, and the other two are disposed at the lower portion of the high vacuum container. Each supporting assembly includes a base plate welded at outer surface of the inner container body and a heat insulating pipe extending along a radial direction of the high vacuum container, one end of the heat insulating pipe abutting against the base plate. Each supporting assembly at the lower portion further includes a fixing element, and each fixing element partly is partly inserted into the outer container body through the opening on the outer container body. Each fixing element has a top plate and a bending portion, and each bending portion bends vertically from the edge of the top plate and towards the inner part of the high vacuum container, and sleeves onto outside of the heat insulating pipe, and outer surface of the bending portion is welded to the outer container body at the opening. The high vacuum container and an adjusting device for adjusting the concentricity of the high vacuum container would be beneficial to high concentricity.