Cross-Belt Conveyor Brake Control During Carriage Cornering
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Solution Overview
Problem
Conventional transverse-belt conveyor systems in conveying devices face challenges in achieving effective braking during horizontal curves, leading to the risk of material falling from the conveying carriage due to centrifugal force, especially when not driven by a separate auxiliary energy source.
Innovation Solution
A conveying device with at least two carriages, where a drivetrain brake system is implemented, featuring a brake apparatus on one carriage and an operating apparatus on the other, which interacts to transition between a braking state and a release state based on the carriages' relative displacement during straight-ahead and curved travel, ensuring reliable braking without auxiliary energy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate drive source fed with auxiliary energy is used to drive the transverse belt, then effective braking can be achieved, but the construction becomes more complex and auxiliary energy must be conducted to movable conveying carriages
Solution Approach 1:
The patent extracts the drive source function from the movable conveying carriage and relocates it to a stationary position. The transverse belt is now driven by a stationary drive roller that the belt passes over during its travel path, eliminating the need for auxiliary energy conductors on movable carriages while maintaining braking capability through the stationary drive system.
Solution Approach 2:
The patent introduces a stationary drive roller as an intermediary element between the power source and the transverse belt. This intermediary allows the transverse belt to be driven and braked without requiring the conveying carriage itself to have a drive source, thus reducing construction complexity while maintaining braking reliability through the stationary drive mechanism.
2Device complexity
If the transverse belt is driven without a separate auxiliary energy source using a friction roller drive, then construction is simplified and no auxiliary energy is needed, but effective braking during curve travel cannot be achieved
Solution Approach 1:
The patent extracts the braking function from the movable conveying carriage and implements it through a stationary drive roller system. The stationary drive roller provides both the driving force and the braking capability during curve travel, eliminating the need for complex auxiliary drive sources on each carriage while maintaining effective braking through the stationary mechanism.
Solution Approach 2:
The stationary drive roller serves multiple functions: it drives the transverse belt during straight travel and provides braking force during curve travel. This multi-functional element simplifies the overall construction by eliminating the need for separate drive and brake systems on each movable carriage, while maintaining both driving and braking effectiveness through a single stationary system.
3Use of energy by moving object
If the transverse belt is driven by a stationary friction roller, then no auxiliary energy is required, but the transverse belt cannot be effectively braked during curve travel due to centrifugal force
Solution Approach 1:
The patent extracts the energy consumption issue from the movable conveying carriage by implementing a stationary drive roller system. The stationary system provides both driving and braking functions without requiring auxiliary energy on the movable carriages, and the braking reliability during curves is maintained through the stationary drive roller's ability to exert friction force independent of the carriage's centrifugal motion.
Solution Approach 2:
The stationary drive roller system serves itself by providing both the driving force and the braking force without requiring external auxiliary energy sources on each carriage. The system uses the friction between the stationary roller and the transverse belt to achieve both propulsion and braking, making the movable carriages self-sufficient without auxiliary energy conductors while maintaining braking reliability during curves.
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 ensures reliable operation and precise unloading of material during straight-ahead travel while effectively braking the transverse belt during curves, reducing the risk of material falling and maintaining low wear on the belt without auxiliary energy consumption.
Implementation Method 1
the brake apparatus exerts a braking force on an element of a drivetrain of the transverse-belt conveyor
Implementation Method 2
owing to the weight of the material for conveying supported thereon and the resulting centrifugal force
Data Source
AI summary
The invention relates to a conveyor device with at least one first and second conveyor carriage which are arranged one behind the other in the conveyor direction (F), a cross belt conveyor which is formed on at least the second conveyor carriage for conveying material to be conveyed in a cross conveyor direction (Q) oriented substantially transversely to the conveyor direction (F), and a powertrain brake for the cross belt conveyor. An operating device is arranged on the first conveyor carriage and a brake device is arranged on the second conveyor carriage. The brake device assumes the release state when the first and second conveyor carriage are traveling in a substantially straight manner, and the brake device assumes the brake state when at least one of the conveyor carriages is cornering in order to allow a movement of a cross belt of the cross belt conveyor in a cross conveyor direction (Q) when traveling in a straight manner and brake the movement when cornering.