Winch Apparatus with Adjustable Gear Ratio for Torque Speed Trade-off
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Solution Overview
Problem
Conventional winches for the entertainment industry are limited to specific torque/speed profiles, requiring multiple units to be maintained for varying load requirements, which is costly and inefficient.
Innovation Solution
A motorized winch apparatus with a gear set and drive belt system that allows adjustable torque and speed by altering the ratio of the first and second gear diameters, enabling interchangeable gears to fine-tune the torque/speed profile.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a winch is designed for high torque to handle heavier loads, then the torque capability is improved, but the speed at which the load can be moved decreases
Solution Approach 1:
The patent implements a dynamic gear ratio system where the ratio between the first gear diameter and second gear diameter can be altered to adjust the torque/speed profile. This allows the winch to adapt its mechanical advantage dynamically, enabling high torque output when needed while maintaining the capability for high speed operation by changing the gear configuration.
2Speed
If a winch is designed for high speed to move loads quickly, then the speed is improved, but the torque capability decreases
Solution Approach 1:
The patent implements a dynamic gear ratio system where the ratio between the first gear diameter and second gear diameter can be altered to adjust the torque/speed profile. This allows the winch to adapt its mechanical advantage dynamically, enabling high speed operation while maintaining the capability for high torque output by changing the gear configuration.
3Adaptability or versatility
If multiple winches with different torque/speed profiles are maintained to handle varying load requirements, then the adaptability is improved, but the cost and maintenance burden increase
Solution Approach 1:
The patent creates a universal winch system that can perform multiple torque/speed functions through a single apparatus. By incorporating interchangeable gears with different diameter ratios, one winch unit can replace multiple specialized winches, providing high torque/low speed, low torque/high speed, and intermediate configurations as needed.
Solution Approach 2:
The patent implements a dynamic gear ratio system where the ratio between the first gear diameter and second gear diameter can be altered to adjust the torque/speed profile. This allows the winch to adapt its mechanical advantage dynamically, enabling high torque output when needed while maintaining the capability for high speed operation by changing the gear configuration.
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
Enables flexible adjustment of torque and speed to accommodate a wide range of load weights and speeds, reducing the need for multiple winches and minimizing maintenance costs.
Implementation Method 1
The motor is operative through a drive belt to provide a torque that translates a length of at least one flexible line at a linear speed
Implementation Method 2
The torque and the linear speed are adjustable by altering the ratio of the first diameter to the second diameter
Data Source
AI summary
Provided is a winch apparatus including two exchangeable and interchangeable gears connecting a motor to a drum, the drum being operative to extend and retract a flexible line. By exchanging and interchanging the gears to effect a change in the ratio of the diameters of the first gear to the second gear, the torque and the linear speed of the flexible line are adjustable, permitting the same winch apparatus to move heavier loads at lower speeds, or lighter loads at higher speeds.