Screw Conveyor With Segmented Support Blocks
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Solution Overview
Problem
Conventional screw conveyors face clogging issues due to the increased diameter of discharge pipes, which can lead to chips accumulating and becoming stuck inside the delivery pipe, especially when support structures are present, limiting the installation of storage boxes and causing operational disruptions.
Innovation Solution
A screw conveyor design featuring a container-type main body with a horizontally oriented delivery pipe, an inclined discharge pipe, a screw within the storage tank and delivery pipe, and support blocks slidably contacting the screw at different positions, ensuring a gap for chip accumulation and preventing clogging by positioning support blocks away from the discharge pipe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the discharge pipe diameter is increased to reduce conveying resistance, then chips can be discharged more smoothly, but chips easily clog inside the delivery pipe
Solution Approach 1:
The patent applies different structural characteristics to different sections of the delivery pipe. The front section has support blocks for stability, while the rear section has a larger diameter and no support blocks to prevent clogging. This local differentiation allows the system to achieve both discharge smoothness and clogging resistance in different locations.
2Stability of the object's composition
If support blocks are added to support the screw in the delivery pipe, then the screw is stably supported, but chips easily clog around the support blocks
Solution Approach 1:
The delivery pipe is segmented into a front section with support blocks and a rear section without support blocks. This segmentation allows the screw to be stably supported in the front section while the rear section maintains clear passage for chip discharge, preventing clogging around support structures.
3Adaptability or versatility
If a storage box is added to increase conveyance path volume, then the system can cope with fluctuating chip generation, but installation space is insufficient and device complexity increases
Solution Approach 1:
Instead of adding a storage box in the vertical direction (which would require additional installation space), the patent increases the conveyance path volume by enlarging the delivery pipe diameter in the horizontal dimension. This approach achieves the same functional goal of accommodating fluctuating chip generation without increasing structural complexity or requiring additional space.
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 configuration prevents chip clogging by maintaining a gap between the screw and delivery pipe, allowing continuous operation without stopping the screw, even with varying chip sizes and shapes, and supports smooth conveyance by positioning support blocks at the front of the delivery pipe.
Implementation Method 1
multiple support blocks configured to slidably contact the screw are fixed to an inside surface of the delivery pipe
Data Source
AI summary
A screw conveyor including a container-type main body provided with a storage tank; a horizontally oriented delivery pipe a front end of which is connected to the storage tank; a discharge pipe connected to a rear end of the delivery pipe and arranged inclined upwards from a connecting end to another end; a screw arranged across an inside of the storage tank and the delivery pipe; a drive mechanism configured to apply rotation to the screw via a rotation transmission section on a front section of the storage tank on an opposite side to the delivery pipe; and a screw support structure in which multiple support blocks configured to slidably contact the screw are fixed to an inside surface of the delivery pipe at different positions, and in which one or two or more of the support blocks are fixed to a front side of the delivery pipe.