Movable Head Assembly for Material Testing Machine Servicing
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Solution Overview
Problem
Existing test machines lack efficient and convenient methods for servicing and maintaining components, particularly the head assembly, which hinders maintenance and increases the footprint due to separate enclosures for power supplies and actuator systems.
Innovation Solution
A testing machine design featuring a crosshead with a movable head assembly that can be selectively lowered for easy access to components, allowing for servicing without the need for additional enclosures and reducing the overall footprint by integrating power and control systems within the head assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If components are housed in separate enclosures for power supplies and actuator systems, then reliability is improved through isolation, but device complexity and footprint increase
Solution Approach 1:
The patent combines previously separate enclosures for power supplies and actuator systems into a single integrated head assembly. The power supply, actuator system, and control components are housed together in one compact unit that attaches to the crosshead, eliminating the need for multiple separate enclosures while maintaining functional isolation through internal compartmentalization.
2Ease of operation
If head assembly is positioned high for operation, then testing function is optimized, but ease of repair deteriorates due to difficult access
Solution Approach 1:
The head assembly is designed with dynamic positioning capability, allowing it to be moved between an upper operating position during testing and a lower servicing position for easy access. The assembly can be detached from the crosshead and repositioned, enabling convenient maintenance while maintaining optimal positioning during operation.
3Reliability
If multiple separate enclosures are used for power and control systems, then functional isolation is improved, but productivity deteriorates due to increased maintenance time
Solution Approach 1:
The integrated head assembly employs internal segmentation with separate compartments for power supply, actuator, and control components. This allows functional isolation and independent servicing of each subsystem while maintaining a unified external structure, enabling technicians to access and maintain individual components without disturbing others.
Data Source
AI summary
A testing machine includes a pair of vertical columns, a crosshead selectively positionable on the vertical columns, and a head assembly supported by and movable with the crosshead. The head assembly has an electric actuator, a support that can be selectively moved from a first position when the test machine is operated to a lowered position. The support supporting components are related to powering or controlling the electric actuator, said components are exposed for servicing in the lowered position.