Microscope Objective Lens Switching via Adjustable Worm Gear Clearance
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Solution Overview
Problem
Current microscope objective lens switching apparatuses face challenges with precision due to wear and tear in worm gear transmission mechanisms and the need for periodic replacement of critical components in gear-driven mechanisms, leading to decreased accuracy and short lifetimes.
Innovation Solution
A microscope objective lens switching apparatus utilizing a rotation drive module, a transmission module with a double lead worm and worm gear, and a manual knob for adjusting mesh engagement clearance, allowing for high precision adjustments without component replacement, thereby extending the apparatus' lifespan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a worm gear transmission mechanism is used for objective lens switching, then the device complexity is reduced and ease of manufacture is improved, but the manufacturing precision and reliability deteriorate due to wear and tear over time
Solution Approach 1:
The patent employs a double lead worm structure where the lead angle can be adjusted to optimize the mesh engagement clearance between the worm and worm gear. By changing the geometric parameters of the transmission components, the system maintains high switching precision while preserving the manufacturing simplicity of worm gear mechanisms.
Solution Approach 2:
The patent introduces an adjustable mesh engagement clearance mechanism that allows the transmission system to adapt its parameters during operation. This dynamic adjustment capability enables the system to compensate for wear over time, maintaining precision without requiring complex fixed-precision components.
2Manufacturing precision
If a gear-driven mechanism with high precision is used for objective lens switching, then the switching precision is improved, but the reliability deteriorates due to critical components being prone to damage and requiring periodic replacement
Solution Approach 1:
The patent designs the transmission module with replaceable wear-resistant components and an adjustable mesh engagement clearance system. This allows for preventive maintenance and extension of component life before failure occurs, thereby improving reliability while maintaining the high precision benefits of gear-driven mechanisms.
3Duration of action of stationary object
If the mesh engagement clearance between the double lead worm and worm gear increases due to wear, then the lifetime is extended through component adjustability, but the switching precision deteriorates
Solution Approach 1:
The patent implements a dynamic adjustment mechanism for the mesh engagement clearance between the double lead worm and worm gear. This allows the system to adapt and maintain optimal precision parameters even as components wear over time, thereby extending lifetime without sacrificing switching precision.
Solution Approach 2:
By enabling adjustment of the mesh engagement clearance parameter, the system can compensate for wear-induced changes. This parameter change capability allows the transmission module to maintain high switching precision throughout the extended operational lifetime of the components.
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 solution achieves high adjustment precision and prolongs the apparatus' lifetime by enabling rapid adjustment of mesh engagement clearance between the double lead worm and worm gear, maintaining high switching accuracy without the need for component replacement.
Implementation Method 1
One end of the coupler is threaded to the output shaft
Implementation Method 2
the manual knob is threaded to one end, away from the coupler, of the double lead worm
Implementation Method 3
a worm gear in mesh engagement with the double lead worm
Data Source
AI summary
The switching apparatus, configured to switch an objective lens of a microscope, includes a base, a rotation drive module secured onto the base, a transmission module connected to the rotation drive module, and a turntable fixedly connected to the transmission module and the objective lens. The transmission module includes a housing fixed onto the base, a coupler with one end detachably secured to an output shaft of the rotation drive module, a double lead worm fixedly connected to another end of the coupler, and a worm gear in mesh engagement with the double lead worm. The worm gear is fixedly connected to the turntable, and by disconnecting the coupler from the output shaft and rotating the coupler, the double lead worm moves along an axial direction to change a mesh engagement clearance between the double lead worm and the worm gear.