Trailer Jack Gear Reduction for Power Drill Motor Protection
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Solution Overview
Problem
Conventional trailer jack systems face inefficiencies due to lack of sufficient power and unsuitable gear ratios, leading to performance issues and potential motor burnout when using a power drill, especially when relying on the tow vehicle's electrical system or a trailer-mounted battery.
Innovation Solution
A trailer jack device featuring a gearbox with a customizable gear reduction ratio, integrated with a mount and tube system, optimized for peak efficiency and motor protection, allowing for efficient operation with a power drill and minimizing motor burnout.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional gear ratio is used in the trailer jack, then the structure remains simple, but the power drill cannot operate at peak efficiency and motor burnout occurs
Solution Approach 1:
The patent applies parameter changes by optimizing the gear reduction ratio to a specific range (10:1 to 20:1) that matches the power output characteristics of common power drills. This parameter optimization allows the drill motor to operate within its efficient torque and speed range, preventing burnout while maintaining reliable operation across various drill models.
Solution Approach 2:
The patent incorporates a selectable gear ratio mechanism that allows users to switch between different reduction ratios (e.g., 10:1, 15:1, 20:1) depending on the specific drill being used and the loading conditions. This dynamic adaptability ensures the system can optimize performance for different power sources and trailor weights, preventing motor burnout under varying operational conditions.
2Reliability
If a higher gear reduction ratio is used to increase torque, then motor burnout is minimized, but the operation speed decreases
Solution Approach 1:
The patent resolves this contradiction by providing multiple selectable gear ratios (10:1, 15:1, 20:1) that allow users to dynamically adjust the balance between torque and speed. For lighter trailers or when using high-power drills, a lower ratio (10:1) provides faster operation. For heavier trailers or lower-power drills, higher ratios (15:1 or 20:1) provide sufficient torque while preventing motor burnout.
Solution Approach 2:
The patent changes the gear ratio parameter based on operational requirements, allowing the system to optimize both motor protection and operation speed. The selectable ratios enable the same jack mechanism to adapt to different trailor weights and power drill capabilities, achieving both motor protection and acceptable operation speed across diverse conditions.
3Ease of operation
If power-operated components are added to improve operation ease, then ease of operation increases, but device complexity and cost increase
Solution Approach 1:
The patent applies self-service by designing the gearbox to directly accept the power output from a standard drill without requiring additional power transmission components. The drill's existing motor and shaft directly drive the gearbox input, eliminating the need for separate power take-off mechanisms, belts, or complex coupling systems that would increase device complexity.
Solution Approach 2:
The patent achieves universality by designing the gearbox interface to be compatible with standard power drill specifications (shaft diameter, rotation direction, power output range). This universal design allows the same jack mechanism to work with various drill models from different manufacturers, providing power-operated ease of operation without requiring model-specific adaptations or additional 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 enables up to 2.3 times faster operation compared to manual cranking and supports heavier trailer weights, reducing torque output while maintaining speed, thus enhancing operational efficiency and extending motor lifespan.
Implementation Method 1
the gearbox has a gear reduction ratio for a power drill to perform at peak efficiency and to minimize motor burnout
Data Source
AI summary
A trailer jack device is provided. The device may include: a gearbox for actuating a trailer; and a mount connected to the gearbox via a tube. The mount may be configured to couple the trailer to the gearbox. Further, the gearbox may have a gear reduction ratio for a power drill to perform at peak efficiency while minimizing motor burnout.