Mobile Aggregate Plant Vibrating Screen Movable Frame
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Solution Overview
Problem
Existing mobile aggregate processing plants lack easy access to the vibrating screening unit for maintenance and repair, particularly for replacing screens and absorbers, due to fixed screen-mounting frames that obstruct access to the lower parts.
Innovation Solution
The vibrating screening unit is made movable relative to its mounting frame, allowing access to the lower parts for maintenance and enabling the unit to be moved to a second position for easier access, with hydraulic rams and pivotable mechanisms facilitating this movement, and the underscreen conveyor can also be repositioned to maximize access space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the screen-mounting frame is fixed to provide structural support, then the structural stability is improved, but the accessibility for maintenance is worsened
Solution Approach 1:
The screen-mounting frame is designed to be movable relative to the vibrating screening unit, transitioning between a fixed position during operation and a retracted position during maintenance. This dynamic design allows the frame to provide structural support when needed while enabling accessibility when required, resolving the contradiction between stability and ease of operation.
2Stability of the object's composition
If the vibrating screening unit is fixed in position, then the operational stability is improved, but the ease of repair is worsened
Solution Approach 1:
The vibrating screening unit is designed with movable mounting connections that allow it to remain fixed during operation for stability, but can be moved to accessible positions for maintenance. The frame can be retracted or repositioned to provide access to the screening unit from below, making screen replacement easier while maintaining operational stability.
3Manufacturing precision
If the screen-mounting frame is made rigid for heavy-duty screening, then the screening effectiveness is improved, but the accessibility for absorber adjustment is worsened
Solution Approach 1:
The screen-mounting frame is designed with movable components that allow it to maintain a rigid, fixed position during heavy-duty screening operations for effectiveness, but can be moved or retracted to provide accessibility for absorber adjustment. This dynamic capability resolves the contradiction between screening effectiveness and ease of operation for maintenance.
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 provides improved accessibility for maintenance and repair, reducing downtime and increasing the efficiency of screen replacement and absorber adjustment, enhancing the overall operational reliability of the mobile aggregate processing plant.
Implementation Method 1
hydraulic rams and pivotable mechanisms facilitating this movement
Implementation Method 2
a vibrating screening unit, sometimes termed a `screen box', having a series of heavy-duty screens with defined openings that are vibrated by a motor
Implementation Method 3
acting against a series of absorbers, usually springs, mounted on a supporting frame
Data Source
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AI summary
Mobile aggregate processing plant (2) for screening aggregate material comprising a mobile chassis (4) having a main frame (5) and a vibrating screening unit (20) mounted via one or more absorbers on a screen-mounting frame and able to provide at least one aggregate discharge stream therethrough, wherein the vibrating screening unit (20) is moveable relative to the screen-mounting frame between a first in-use position, and at least a second position able to provide an access portal below the vibrating screening (20) unit when not in use.