Movable Pressure Roller for Conveyor Belt Centering
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Solution Overview
Problem
Vehicle bodies with integrated endless conveyor belts face difficulties in belt centering and control due to limited accessibility of support rollers and narrow installation spaces, making adjustments and tensioning challenging, especially under asymmetrical loading or thermal changes.
Innovation Solution
A movable pressure roller arrangement with a pivotable bearing and adjustable mechanism, such as an adjusting screw, allows for easy belt centering and tension control from one side of the vehicle frame, enabling independent belt control without requiring adjustments below the conveyor belt, which are typically space-consuming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pressure rollers are fixed in a predefined position, then the conveyor belt structure is simple and stable, but belt centering and tension control become difficult or impossible under asymmetrical loading or thermal changes
Solution Approach 1:
The pressure roller is designed with a movable bearing that can be adjusted in position along the longitudinal beam, transforming a static fixed-position roller into a dynamic adjustable roller. This allows the belt tension and centering to be adapted to different loading conditions and thermal expansions while maintaining structural stability.
2Manufacturing precision
If multiple idlers are densely installed on the chassis for belt centering, then belt control precision improves, but accessibility for adjustment becomes difficult or impossible
Solution Approach 1:
The invention extracts the belt centering function from a complex multi-roller dense installation system and implements it through a single adjustable pressure roller. This simplified system maintains belt control precision while being easily accessible for adjustment from one side of the vehicle frame.
3Manufacturing precision
If constriction rollers are used for belt control, then belt centering capability improves, but installation space requirements increase and accessibility decreases
Solution Approach 1:
The invention extracts the essential belt control function from the complex constriction roller mechanism and implements it through a simple adjustable pressure roller system. This reduces the installation space requirements while maintaining the ability to control belt centering and tension.
4Stability of the object's composition
If the bearing is fixed, then the pressure roller position is stable, but belt tension cannot be adjusted under varying loads
Solution Approach 1:
The bearing is designed to be movable rather than fixed, allowing the pressure roller position to be adjusted along the longitudinal beam. This enables adaptation to varying load conditions and thermal changes while maintaining operational stability through controlled adjustment.
Data Source
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AI summary
The invention relates to a vehicle body (100) for transporting bulk and/or general cargo, comprising a chassis (21) and a rectangular loading area (15), the floor (22) of which includes an endless conveyor belt (10) that terminates in a rear discharge area (14). The endless conveyor belt (10) has an upper run (11) and a lower run (12). The lower run is supported by two pressure rollers (15, 16) which are arranged between a head drum (18) and a rear drum (19) of the endless conveyor belt (10) and tension the lower run (12). In a vehicle body with such an endless conveyor belt, it can happen that the conveyor belt (10), for example due to uneven loading, no longer runs straight in the desired direction without impact, but shifts to one side and rubs against lateral contact points.In order to achieve the desired straight running, it is proposed to arrange at least one of the pressure rollers (15, 16) so that its longitudinal axis (L) is movable around a first lateral, stationary bearing (23) of the pressure roller (15, 16), so that the belt running can be controlled.