Equatorial Mount Locking Mechanism for Precision Tracking and Repositioning
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Solution Overview
Problem
Equatorial mounts for telescopes and optical devices require precise and high-range angular adjustments, but existing systems lack efficient mechanisms for quickly switching between celestial objects, compromising precision and speed in tracking celestial movements.
Innovation Solution
The equatorial mount incorporates a locking mechanism with extendable locking members and blocks that engage and disengage with the right ascension and declination shafts, allowing for torque transfer and independent rotation, enabling precise tracking and quick repositioning through a motor-driven worm screw and worm wheel system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the equatorial mount uses a fixed locking mechanism, then tracking precision is improved, but the ability to quickly reposition between celestial objects deteriorates
Solution Approach 1:
The locking mechanism is designed to be dynamically switchable between locked and unlocked states. The locking member can be extended to engage with locking blocks for precise tracking, or retracted to allow free movement for quick repositioning. This dynamic transformation resolves the contradiction by allowing the system to adapt its rigidity based on operational requirements.
Solution Approach 2:
The system changes the physical state of the locking mechanism between engaged and disengaged configurations. By altering the position of the locking member along the shaft, the system transitions between high-friction locked state for precision tracking and low-friction unlocked state for rapid movement, effectively changing the mechanical parameters to suit different operational phases.
2Manufacturing precision
If the locking mechanism is always engaged, then positioning precision is improved, but the ease of operation for quick movements deteriorates
Solution Approach 1:
The locking mechanism transitions from a static always-engaged design to a dynamic system that can be easily switched between locked and unlocked states. The operator can manually actuate the locking member to engage or disengage, making quick repositioning simple while maintaining precision when needed.
Solution Approach 2:
The locking function is extracted as a separate, independently controllable mechanism. The locking member can be selectively engaged or disengaged from the locking blocks, allowing the operator to remove the locking constraint temporarily for easy repositioning, then re-engage it for precise positioning without affecting the overall mount structure.
3Speed
If the mount allows free rotation for quick movements, then repositioning speed is improved, but tracking stability deteriorates
Solution Approach 1:
The system dynamically adjusts its mechanical coupling between the mount and shaft. During quick movements, the locking member is retracted to allow free rotation and high repositioning speed. During tracking operations, the locking member is extended to engage locking blocks, providing mechanical stability and preventing slippage, thus adapting the system's stability characteristic to the operational phase.
Solution Approach 2:
The locking mechanism operates in periodic cycles of engagement and disengagement corresponding to different operational phases. The system alternates between unlocked state for rapid repositioning and locked state for stable tracking, creating a rhythmic pattern of mechanical state changes that optimizes performance for each phase of observation.
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
This solution allows for precise angular adjustments and rapid repositioning of the telescope, enhancing tracking precision and speed by enabling the mount-rotation mechanism to engage or disengage as needed, balancing precision and quick movement capabilities.
Implementation Method 1
the locking member bears against the at least one of the one or more right ascension locking blocks and the one or more declination locking blocks to apply force thereto; the at least one of the one or more right ascension locking blocks and the one or more declination locking blocks in turn bear against the mount-rotation mechanism to apply force thereto
Implementation Method 2
a torque applied by the mount-rotation mechanism to the right ascension shaft causes relative rotation between the right ascension shaft and the declination base about the right ascension axis
Data Source
AI summary
An equatorial mount having a base, a right ascension base, a right ascension shaft, a declination base, a declination shaft, and a mount-rotation mechanism, the declination base rotatable about a right ascension axis relative to the right ascension base, and the declination shaft rotatable about a declination axis relative to the declination axis, wherein the mount-rotation mechanism is engageable and disenagageable from one or the other of the right ascension shaft and the declination shaft, to apply torque between the declination base and that shaft when engaged and to permit relative rotation of the shaft and the declination base when disengaged.