Pan-Tilt Tracking Mount With Direct-Drive Motor And Oil Bath
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Solution Overview
Problem
Existing pan-tilt tracking mount systems face challenges with precision, speed, and reliability, particularly when handling heavy payloads, due to mechanical backlash, slippage, and limited dynamic rigidity, which affects their accuracy and suitability for continuous duty cycles and advanced applications.
Innovation Solution
A pan-tilt tracking mount system with a precisely designed housing and worm gear sets for both pan and tilt axes, featuring low-backlash gear meshing, adjustable bearing support, and immersion in a sealed oil bath for lubrication and debris management, allowing for high payload capacity, precise control, and continuous rotation capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If large mechanical speed reductions are used to achieve medium to large payload capacity, then payload capacity is improved, but tracking speed deteriorates
Solution Approach 1:
The patent replaces traditional mechanical speed reduction mechanisms (gears, belts, pulleys) with a direct-drive motor system. This eliminates the mechanical transmission chain that caused both the payload capacity limitation and speed loss, allowing the motor to directly drive the pan-tilt mechanism for both high speed response and adequate torque through electronic control
2Device complexity
If conventional drive mechanisms are used, then device complexity is reduced, but measurement precision deteriorates due to backlash and slippage
Solution Approach 1:
The patent eliminates mechanical transmission components (gears, belts, pulleys) that introduce backlash and slippage, replacing them with a direct-drive system. This mechanical simplification simultaneously improves positional accuracy by removing the sources of mechanical error while reducing overall device complexity
Solution Approach 2:
The patent incorporates feedback mechanisms (encoders, sensors) that work with electronic control to precisely monitor and adjust motor position and speed. This closed-loop control system achieves high measurement precision without relying on mechanical transmission accuracy, allowing the elimination of complex mechanical precision components
3Force
If worm drives are used for heavy payloads, then payload capacity is improved, but dynamic rigidity deteriorates
Solution Approach 1:
The patent replaces worm drive mechanisms with a direct-drive motor system. This eliminates the inherent flexibility and backlash of worm gear meshing, providing superior dynamic rigidity and stability while maintaining adequate payload capacity through the high torque capability of modern direct-drive motors
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 system achieves high positional accuracy (0.01 degrees), dynamic rigidity, and reliability for heavy payloads, enabling continuous duty cycles while maintaining low parts count and cost-effectiveness, with improved gear mesh accuracy and reduced backlash.
Implementation Method 1
The first worm gear set allows tilt rotation of the first assembly, and the second worm gear set allows pan rotation of the second assembly
Implementation Method 2
immersion in a sealed oil bath for lubrication and debris management
Data Source
AI summary
A pan tilt tracking mount is disclosed. In a first embodiment, the pan tilt tracking mount includes an at least one housing, wherein interior dimensions of the at least one housing are precisely defined; a first assembly located within the at least one housing based upon at least one of the precisely defined interior dimensions, the first assembly including a first shaft and a first worm gear set, wherein the first worm gear set allows tilt rotation of the first assembly; and a second assembly located within the at least one housing based upon at least one of the precisely defined interior dimensions, the second assembly including a second shaft and a second worm gear set, wherein the second worm gear set allows pan rotation of the second assembly.