Crossbelt Sorter Torque Coupling to Block Belt Rotation in Curves
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Solution Overview
Problem
Crossbelt-sorter-carts experience issues with goods falling off when traveling at high speeds due to inertia and centrifugal forces, especially when navigating curves, leading to inefficiencies in sorting performance.
Innovation Solution
A torque transmission device with a coupling mechanism that allows drive torque to be transmitted from a rotatable drive end to a crossbelt end while inhibiting belt torque, preventing unwanted rotation caused by centrifugal forces, thereby ensuring stable operation and reliable sorting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the crossbelt-sorter-cart travels at high speed, then the sorting performance and productivity are improved, but the goods may fall off due to centrifugal forces and inertia when navigating curves
Solution Approach 1:
The coupling means is designed to dynamically switch between locked and unlocked states based on operational conditions. During curved travel, the coupling means remains locked to prevent belt torque transmission. During straight-line operation, the coupling means unlocks to allow belt torque transmission for goods discharge. This dynamic state change enables the system to maintain goods stability during curves while preserving sorting functionality during straight sections.
Solution Approach 2:
The coupling means acts as an intermediary element between the drive end and the crossbelt end. It selectively transmits or blocks torque based on the operational phase, serving as a mediator that protects the system during curves while enabling functionality during straight-line operation. The coupling means translates the rotational movement of the drive end into controlled belt movement only when appropriate.
2Device complexity
If mechanical driving means are used instead of electric motors, then the device complexity and cost are reduced, but the control precision and reliability may be affected
Solution Approach 1:
The coupling means serves as a mechanical intermediary that enhances the reliability of the simplified mechanical drive system. It ensures that torque is transmitted only when appropriate (during straight-line operation) and blocked during curves, preventing unreliable behavior that could arise from the simpler mechanical drive mechanism. This intermediary component compensates for the reduced control capability of mechanical drives compared to electric motors.
3Reliability
If the crossbelt is allowed to rotate freely during curves, then the goods stability is maintained, but the sorting function cannot be performed during curved travel
Solution Approach 1:
The coupling means dynamically transitions between locked and unlocked states to balance goods stability and sorting functionality. During curved travel, it remains locked to maintain goods stability by preventing belt rotation. During straight-line sections, it unlocks to enable belt rotation for goods discharge. This dynamic behavior allows the system to optimize for stability during curves and for sorting efficiency during straight sections, maximizing overall productivity.
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 faster sorting and increased performance by maintaining goods on the crossbelt during high-speed curved travel, reducing the risk of goods falling off and enhancing the overall efficiency of the crossbelt-sorter system.
Implementation Method 1
the coupling means allows a transmission of a drive torque originating from the rotating drive end to the crossbelt end and inhibits a belt torque originating from the rotating crossbelt end
Implementation Method 2
Inertia and/or centrifugal forces however may cause problems whenever the crossbelt-sorter-cart drives along a curve. Especially when conveying heavy goods, the centrifugal forces may accelerate the goods in a direction leading out of the curve
Data Source
AI summary
A torque transmission device (1) is provided for a crossbelt-sorter-cart (200) comprising a crossbelt (210). The torque transmission device (1) comprises a rotatable drive end (10) configured to be coupled to a drive (13, 120) for driving the crossbelt (210) of the crossbelt-sorter-cart (200). A rotatable crossbelt end (20) is configured to be coupled to the crossbelt (210) of the crossbelt-sorter-cart (200). An unrotatable support (30) is configured to be fixed to the crossbelt-sorter-cart (200). A coupling (40) connects the drive end (10) to the crossbelt end (20) at the support (30). The coupling (40) allows a transmission of a drive torque originating from the rotating drive end (10) to the crossbelt end (20) and inhibits a belt torque originating from the rotating crossbelt end (20).