Driven Roller Support for Screw Drive Conveying
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Solution Overview
Problem
Conventional conveying apparatuses face challenges in supporting driven rollers in screw drive sections due to size constraints, leading to increased installation costs and compromised air circulation, as they require additional slit openings and complex floor member arrangements.
Innovation Solution
A conveying apparatus with a driven roller support member that pivots the driven roller above the load bar, allowing it to be engaged with the screw shaft while maintaining friction drive capabilities and reducing the need for multiple slit openings by positioning the driven roller support member on the conveyed object support base, enabling efficient travel in both screw and chain drive sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driven roller is supported on the lateral side of the trolley, then the driven roller can be engaged with the screw shaft, but the trolley size becomes insufficient and guide rail support is required
Solution Approach 1:
The driven roller support member extends vertically downward from the conveyed object support base into the underfloor space, utilizing the vertical dimension to position the driven roller laterally without increasing trolley complexity. This dimensional transition allows the driven roller to be supported outside the trolley structure while maintaining engagement with the screw shaft.
2Ease of operation
If multiple slit openings are provided in the floor member, then the driven roller support member can pass through, but installation cost increases and air circulation is compromised
Solution Approach 1:
The driven roller support member is positioned to pass through the same slit opening as the vertical columns, merging multiple passage requirements into a single opening. This consolidation reduces the number of slit openings needed from multiple to one, thereby reducing installation costs and maintaining air circulation while still allowing the driven roller support member to reach into the underfloor space.
3Reliability
If the driven roller is positioned below the load bar, then friction drive is maintained, but the driven roller cannot be engaged with the screw shaft in the underfloor space
Solution Approach 1:
The system is segmented into two functional zones: the driven roller operates in the underfloor space for screw shaft engagement, while the load bar remains in the upper space for friction drive. The driven roller support member acts as a connecting element that allows these two functions to operate independently in different spatial zones without interfering with each other.
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 configuration allows for cost-effective installation, maintains good air circulation, and facilitates smooth travel in both screw and chain drive sections by optimizing the placement of the driven roller and reducing lateral forces during screw shaft engagement.
Implementation Method 1
a driven roller (20a) engaged with a screw shaft (37)
Implementation Method 2
an engaged member (5a) engaged with a pusher of a pusher equipped chain conveyor (38)
Data Source
AI summary
A driven roller is engageable with a screw shaft and an engaged member is engageable with a pusher of a chain conveyor. The engaged member is projected on the downside of at least one of front and rear trolleys of a conveying traveling body. A conveyed object support base supported via vertical columns of both trolleys includes a driven roller support member composed of an upper column projected downward and aligned in a vertical plane passing through the vertical columns, and a lower arm. The driven roller is pivotally supported by the lower arm at a position higher than a load bar coupling both trolleys.