Robot Suspension Stroke Adjustment for Variable Load Stability
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Solution Overview
Problem
Conventional robots designed for everyday use have limited versatility and high development costs due to their inability to easily adjust suspension strokes according to load and driving conditions, leading to suboptimal utilization.
Innovation Solution
A robot design featuring a suspension system with a motor-controlled suspension bar, bushing top, and spring configuration that allows adjustable suspension stroke based on load weight and floor conditions, ensuring stable driving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed suspension system is used, then the structure is simple and cost-effective, but the robot cannot adapt to varying loads and driving conditions
Solution Approach 1:
The suspension system employs a motor-driven screw mechanism that converts rotational motion into linear displacement, enabling dynamic adjustment of the suspension bar length. This allows the suspension stroke to be changed from a fixed value to a variable parameter that can adapt to different loading conditions and driving modes, directly resolving the contradiction between adaptability and complexity.
Solution Approach 2:
The invention changes the physical parameter of suspension bar length through motor-controlled screw rotation. By adjusting the rotational position of the screw part, the linear position of the bushing top changes, thereby modifying the effective suspension stroke. This parameter change enables the system to adapt to varying conditions while maintaining a relatively compact and controlled structure.
2Reliability
If the suspension stroke is fixed, then the manufacturing cost is low, but the robot cannot optimize performance for different loads
Solution Approach 1:
The suspension system incorporates sensors that automatically detect loading conditions and driving mode, and the control unit autonomously adjusts the suspension bar length based on this information. This self-service capability allows the system to optimize driving stability without requiring manual intervention or complex external control systems, balancing reliability improvement with manufacturing feasibility.
Solution Approach 2:
The system uses sensors to detect the actual loading condition and driving mode, feeds this information to the control unit, and adjusts the suspension bar length accordingly. This closed-loop feedback mechanism ensures optimal driving stability under varying conditions while maintaining a manageable manufacturing complexity through standardized sensor and control components.
3Adaptability or versatility
If an adjustable suspension system is added, then the robot can handle various services and conditions, but the device complexity increases
Solution Approach 1:
The adjustable suspension system serves multiple functions: it adapts to different loading conditions, optimizes performance for various driving modes, and enhances overall robot stability. By consolidating these multiple functions into a single integrated mechanism (motor + screw + bushing top assembly), the invention achieves service versatility while controlling overall system complexity through functional integration.
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 adjustable suspension system enhances the robot's stability and versatility, allowing it to handle varying loads and terrain conditions effectively, thereby improving its operational efficiency and utilization.
Implementation Method 1
a spring located on an outer circumference of the suspension bar and located between the bushing top and the slider
Implementation Method 2
a screw part vertically extending from an upper end of the shaft part toward the through hole
Data Source
AI summary
A robot according to an embodiment of the present disclosure may comprise: a base; a driving wheel protruding downward from the base; a plate spaced upward from the base; a through hole formed at the plate; a suspension bar including a shaft part rotatably connected to the base and vertically extending upward, and a screw part vertically extending from an upper end of the shaft part toward the through hole; a slider sliding along the shaft part and connected to the driving wheel; a bushing top configured to move up and down along the screw part when the suspension bar rotates; a spring located on an outer circumference of the suspension bar and located between the bushing top and the slider; and a motor disposed above the plate and connected to the screw part through the through hole to rotate the suspension bar.