Brake Roller Assembly With Variable ER Braking for Mixed Cargo Loads
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional braking rollers for cargo movement are too powerful for light loads, leading to skidding and flat spots on rollers due to their preset maximum braking load, which is not adaptable to varying load weights.
Innovation Solution
A variable braking system using a brake roller assembly with electro-rheological fluid and a control system that adjusts viscosity based on cargo weight, employing electrodes and rotor disks to create an electric field and vary the braking force dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If preset maximum braking load is used for heavy cargo, then braking force is sufficient for maximum weight containers, but braking force is too powerful for light loads causing skidding and flat spots
Solution Approach 1:
The braking system transitions from a static preset braking mechanism to a dynamic variable braking system that continuously adjusts braking force based on real-time load weight detection. The brake roller assembly incorporates a variable braking arrangement that modulates friction between the roller surface and cargo bottom plate according to measured cargo weight, enabling adaptive braking for both heavy and light loads.
Solution Approach 2:
The system changes the braking parameter (friction coefficient) based on load conditions. By detecting cargo weight and相应ly adjusting the braking force parameter, the system optimizes performance across different load scenarios. This prevents excessive braking force on light loads that causes skidding while maintaining sufficient braking force on heavy loads.
2Reliability
If strong brakes are used to prevent loss of control on heavy loads, then safety is improved, but roller wear increases due to skidding on light loads
Solution Approach 1:
The braking system incorporates a feedback mechanism where load weight is continuously detected and used to adjust braking force. The system measures cargo weight and feeds this information back to the variable braking arrangement, which then optimizes friction levels. This closed-loop control prevents skidding on light loads by reducing braking force, thereby minimizing roller wear while maintaining safety on heavy loads.
Solution Approach 2:
The braking system serves itself by automatically adjusting its braking force based on detected load conditions without external intervention. The variable braking arrangement self-regulates friction levels according to cargo weight, eliminating the need for manual brake adjustment and preventing harmful skidding effects through autonomous adaptation.
3Power
If fixed braking mechanism is used for maximum weight containers, then maximum braking capability is achieved, but efficiency decreases for light loads due to excessive braking force
Solution Approach 1:
The system employs dynamic braking force adjustment that matches braking capability to actual load requirements. Rather than maintaining fixed maximum braking capability, the variable braking arrangement continuously adapts friction levels to cargo weight, optimizing both power delivery and operational efficiency across different load scenarios.
Solution Approach 2:
The braking parameter (friction coefficient) is dynamically changed based on load weight detection. This parameter adjustment ensures that braking capability matches actual needs, preventing excessive braking force on light loads that reduces handling efficiency while maintaining adequate braking power for heavy containers.
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 provides a tailored braking force to match the cargo weight, reducing wear and improving efficiency by applying higher forces only when necessary, thus preventing skidding and minimizing roller damage.
Implementation Method 1
A variable braking system using a brake roller assembly with electro-rheological fluid and a control system that adjusts viscosity based on cargo weight, employing electrodes and rotor disks to create an electric field and vary the braking force dynamically.
Data Source
Figure 1~2
Figure 3A
Figure 3B
AI summary
A brake roller assembly comprises a shaft (206); a first roller bearing (214) coupled to the shaft and disposed at a first axial end of the shaft a second roller bearing (224) coupled to the shaft and disposed at a second axial end of the shaft; a roller cylinder (202) disposed radially outward of the first roller bearing and the second roller bearing; and a braking arrangement, including a plurality of electrodes (250), and a plurality of rotor disks (246) coupled to the roller cylinder, each rotor disk in the plurality of rotor disks disposed between an anode in the plurality of electrodes and a cathode in the plurality of electrodes.