Quick-Fastening Material Analyzer With Zero-Play Wedge Lock
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Solution Overview
Problem
Existing material analysis devices require lengthy setup times due to screw connections, which are secure but time-consuming to assemble and disassemble, and there is a risk of improper tightening or loosening.
Innovation Solution
A materials analysis device with a wedge connection system that allows for quick assembly and disassembly of sample holders and probes, utilizing a sleeve and wedge mechanism with a spiral spring for positive fit and zero play, and a synchronous actuation mechanism for simultaneous operation of multiple columns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screw connections are used to secure sample holders and probes, then connection reliability is improved, but setup time increases
Solution Approach 1:
The connection system is segmented into modular components: a sleeve on the loading plunger, an insertion section on the sensing plunger, and a wedge element. This segmentation allows for quick assembly by simply inserting the sensing plunger into the loading plunger and securing it with the wedge, eliminating the need for time-consuming screw connections while maintaining connection reliability through the positive fit mechanism.
Solution Approach 2:
The wedge connection system introduces dynamic elements including a spiral spring that automatically maintains preload and a movable wedge that can be quickly inserted or removed. This dynamic design allows the connection to be securely established and released rapidly, reducing setup time while ensuring reliable force transmission during testing.
2Strength
If screw connections are used to secure sample holders and probes, then connection strength is improved, but ease of operation deteriorates
Solution Approach 1:
The spiral spring in the wedge connection system automatically maintains preload and ensures the wedge remains securely positioned during operation. The system is self-regulating, with the spring continuously applying force to keep the wedge engaged, eliminating the need for manual tightening adjustments that are required with screw connections.
Solution Approach 2:
The wedge acts as an intermediary element that translates simple linear insertion motion into a secure, high-strength connection. By inserting the wedge through the lateral window into the groove, the system converts an easy, tool-free operation into a strong mechanical lock that can transmit testing forces reliably.
3Reliability
If screw connections are used to secure sample holders and probes, then connection security is improved, but device complexity increases
Solution Approach 1:
The wedge connection system serves multiple functions within a single integrated design: the spiral spring provides automatic preload maintenance, the wedge provides secure mechanical locking, and the lateral window provides both access for wedge insertion and a visual indicator for proper assembly. This multi-functional design achieves connection security without requiring multiple separate components or complex assembly procedures.
Solution Approach 2:
The design extracts the essential function of secure connection from the complex screw mechanism and implements it through a simplified wedge-and-groove system. By removing the threaded connection element and replacing it with a direct insertion wedge guided by the groove, the system maintains connection security while dramatically reducing assembly complexity.
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
Reduces setup time significantly and enhances operational reliability by ensuring correct assembly without tools, minimizing the risk of accidental disconnection, and enabling rapid sample changes.
Implementation Method 1
A wedge, preferably in the form of a flat wedge with a flat wedge surface, can be inserted through this lateral window into the groove located behind it on the insertion section. In this way, the feeler plunger can be anchored to the load plunger with a positive fit and zero play.
Implementation Method 2
A spiral spring is attached to the outside of the loading die. This spiral spring preloads the wedge radially toward the loading die.
Implementation Method 3
the sleeve of the loading die forms a first centering cone, preferably in the form of a centering cone seat. This, in conjunction with a second, preferably male, centering cone formed on the insertion section of the sensing die, centers the latter relative to the loading die.
Data Source
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AI summary
A material analysis device for analyzing a material sample, comprising a sample chamber and a sample holder which is supported by at least one column and projects into the sample chamber, as well as a loading plunger which is subjected to force at one end by an exciter and carries a sensing plunger at its other end with which it transmits force to the sample in a defined manner and thereby loads it, characterized in that a sample chamber wall of the sample chamber has a retaining opening for one or more columns of the sample holder into which the free end of the respective column can be inserted, wherein the free end of the column in question has a groove into which a wedge movably mounted in the sample chamber wall can be inserted, so that the end of the column is positively locked and free of play against the sample chamber wall.