Reversible Bucket Elevator With Symmetric Buckets
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Solution Overview
Problem
Existing bucket elevators lack the ability to change direction without complex mechanisms or manual intervention, requiring additional elements and facilities to achieve bidirectional operation, which complicates installation and increases operational complexity.
Innovation Solution
A reversible bucket elevator design featuring symmetric buckets and an elliptic tipping mechanism allows for effortless direction change without auxiliary elements, enabling efficient operation in both advancement senses using the same unloading area and tipping means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If asymmetric buckets are used to facilitate unloading in one direction, then unloading efficiency is improved, but the ability to change direction is lost
Solution Approach 1:
The patent applies asymmetry in reverse - it uses symmetric buckets instead of asymmetric ones. The buckets have identical geometry on both sides, allowing them to function equally well in either direction of movement. This symmetry enables the conveyor to change direction without requiring different bucket configurations, thus providing adaptability while maintaining unloading efficiency through proper positioning of the tipping mechanism.
Solution Approach 2:
The symmetric bucket design makes the buckets universal - they can perform the same unloading function regardless of which direction the conveyor moves. A single bucket design serves multiple directional requirements, eliminating the need for different bucket types for different directions and enabling flexible operation in both forward and reverse directions.
2Adaptability or versatility
If symmetric buckets with elliptic guide are used, then direction change capability is improved, but bucket tipping mechanism complexity increases
Solution Approach 1:
The patent uses an elliptic (curved) guide profile instead of a straight or angular one. This curved geometry naturally guides the bucket through a smooth tipping motion as the conveyor direction changes. The elliptic shape provides the necessary mechanical advantage to tip the buckets automatically during direction reversal without requiring complex additional mechanisms, thus managing complexity while enabling bidirectional operation.
Solution Approach 2:
The tipping mechanism is designed to be dynamic rather than static - the elliptic guide allows the bucket tipping angle to vary continuously as the conveyor moves through its cycle. This dynamic adjustment enables automatic adaptation to directional changes without fixed mechanical stops or complex switching mechanisms, simplifying the overall system while maintaining bidirectional capability.
3Adaptability or versatility
If bidirectional operation is implemented with asymmetric buckets, then direction flexibility is improved, but installation complexity and facility requirements increase
Solution Approach 1:
By using symmetric buckets instead of asymmetric ones, the patent eliminates the need for different bucket configurations for different directions. This single standardized bucket design simplifies manufacturing, inventory management, and installation. The symmetric design means that buckets can be installed in any orientation and will function correctly regardless of conveyor direction, greatly reducing installation complexity.
Solution Approach 2:
The symmetric bucket design creates a universal component that works in both directions without modification. This universality means that the same unloading area and tipping mechanism can handle both forward and reverse operations, eliminating the need for duplicated facilities or separate unloading areas for different directions, thus simplifying the overall facility requirements.
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 design simplifies facility operations, reduces costs, and enhances process efficacy by allowing seamless bidirectional operation without manual modifications or additional facilities.
Implementation Method 1
presenting means for adjusting to said tipping means formed by a guide located on said connection sides which presents an elliptic shape whose major axis is located in said symmetry axis
Implementation Method 2
Each bucket (5) is formed by a concave symmetric body with an open upper end (9)... apt to contain and lift a load
Data Source
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AI summary
Reversible bucket elevator, which comprises a frame (3) with an inner conveyor (4), some buckets (5) coupled and tipping means, wherein each bucket (5) is formed by a concave symmetric body with both connection sides (10) and coupling means to the conveyor (4) formed by a connecting shaft (12) in the connection sides (10) and, means for adjusting to the tipping means formed by a guide (13) with ellipse shape and, wherein the tipping means are formed by a longitudinal element (14) with a surface oriented towards the conveyor which presents a curved symmetric and convex profile (15) such that the contact of the guide (13) therewith, in both bucket (5) advancement senses, generates a bucket tipping until reaching a bucket (5) maximum tipping in the central area (14.1) of said curved profile (15).