Modular Conveyor Frame with Pinion-Gear Spindle Adjustment
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Solution Overview
Problem
The existing ladder-type frame construction of endless belt conveyors is inefficient in terms of part count and assembly, requiring different subassemblies for each conveyor length and complicating the manufacturing process.
Innovation Solution
A modular frame construction using extruded frame elements joined to define the conveyor width, with a spindle mounting assembly allowing longitudinal movement of the tensioning spindle for belt tension adjustment, and a pinion-gear rack system for easy adjustment of the conveyor belt tension.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a ladder-type frame construction is used, then the structural stability is improved, but the number of parts and assembly complexity increases
Solution Approach 1:
The frame construction is segmented into modular components including side frame members, cross members, and end plates that can be assembled together. This segmentation allows for standardized parts that can be reused across different conveyor configurations, reducing overall assembly complexity while maintaining structural stability.
Solution Approach 2:
The frame components are designed with universal features such as standardized mounting holes, interchangeable cross members, and adaptable connection points. This universality allows the same basic components to serve multiple functions and be used in various conveyor lengths and configurations, reducing the total number of unique parts needed.
2Manufacturing precision
If different subassemblies are used for each conveyor length, then the manufacturing precision is improved, but the manufacturing efficiency decreases
Solution Approach 1:
The conveyor is divided into standardized modular sections with fixed dimensions. By combining different numbers of these standard modules, various conveyor lengths can be achieved using the same basic subassemblies, eliminating the need to manufacture entirely different subassemblies for each length while maintaining precise configurations.
Solution Approach 2:
Instead of changing the fundamental subassembly design for different lengths, the patent varies the number of repeating modular units. This parameter change approach allows precise conveyor lengths to be achieved by simply adding or removing standard modules rather than redesigning subassemblies, significantly improving manufacturing efficiency.
3Stability of the object's composition
If the tensioning spindle is fixed, then the structural stability is improved, but the belt tension adjustability decreases
Solution Approach 1:
The tensioning spindle is designed with movable mounting mechanisms that allow it to shift position along the frame while maintaining stable operation. This dynamic capability enables belt tension adjustment by moving the spindle to different positions, while the mounting structure ensures frame stability is maintained during both adjustment and operation.
Solution Approach 2:
The patent introduces intermediary adjustment mechanisms such as adjustable mounting brackets or sliding rails that mediate between the fixed frame structure and the movable tensioning spindle. This intermediary system allows the spindle to be positioned and secured at various locations for tension adjustment while the frame itself remains stable and fixed.
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
This approach reduces the number of parts required and simplifies the assembly process, enabling the production of conveyors of varying lengths with common components and efficient belt tensioning.
Implementation Method 1
A pair of pinions are joined to each other by a connection rod that extends across a width of the conveyor frame. Each of the pinions are engaged with one of the gear racks such that rotation of either one of the pinions results in movement of the gear racks and the head plates in contact with the gear racks.
Data Source
AI summary
A conveyor construction for a continuous belt conveyor. The conveyor includes a conveyor frame assembly constructed from a plurality of separate extruded and joined frame sections. The frame assembly can include a pair of side frame extrusions joined to a center frame extrusion by a pair of attachment rails. The conveyor construction further includes a series of spindle mounting assemblies that support a tensioning spindle on opposite ends of the conveyor frame. Each of the spindle mounting assemblies includes a gear rack and a pinion head that is rotatable to move the gear racks. The gear racks contact one of a pair of head plates that support the tensioning spindle relative to the frame.