Vibratory Screen Drive Assembly With Split Sheathing Tube Mounting
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Solution Overview
Problem
Existing screen devices require complex assembly and maintenance processes due to the need for simultaneous installation and disassembly of vibratory drive components from both sides of the screen tray, necessitating multiple personnel and access from both the inside and outside.
Innovation Solution
A sheathing tube holder with fastening elements is integrated into the lateral screen panel, allowing for easy installation and maintenance of the vibratory drive by securing the motor housing and sheathing tube from the outside, using a form-fit connection and telescopic design to facilitate assembly and replacement of exciter units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the exciter units are interconnected by a shaft encompassed by a jacket tube for protection, then the synchronization and protection are improved, but the assembly complexity increases requiring two people and access from both sides
Solution Approach 1:
The jacket tube is segmented into two sections that can be assembled independently from each side of the screen panel, with each section containing its own exciter unit and shaft portion. This segmentation allows the complex assembly to be divided into simpler sub-assemblies that can be installed separately and then connected.
Solution Approach 2:
The shaft is nested within the jacket tube, creating a protected internal structure. The exciter units are nested within their respective shaft portions, which are in turn nested within the jacket tube sections. This nested arrangement protects the synchronization mechanism while maintaining a compact structure that can be assembled from both sides.
2Ease of manufacture
If the imbalance drives are installed by two people simultaneously from inside and outside the lateral screen panel, then the assembly is completed, but the requirement for multiple personnel and dual-side access increases operational complexity
Solution Approach 1:
The assembly is segmented into two independent halves, each containing an exciter unit, shaft portion, and jacket tube section. Each half can be assembled and installed from one side of the screen panel independently, eliminating the need for coordinated two-person assembly from both sides simultaneously.
Solution Approach 2:
The jacket tube sections and shaft portions are pre-assembled into complete exciter unit assemblies before installation. This preliminary assembly allows the units to be prepared in advance and then installed individually from accessible sides, rather than requiring simultaneous assembly operations from both sides during installation.
3Reliability
If the sheathing tube is protected from dirt and contact, then the protection is improved, but the access for maintenance and replacement becomes restricted
Solution Approach 1:
The sheathing tube is divided into two separable sections that protect the internal shaft and exciter units during normal operation. During maintenance, these sections can be independently removed from opposite sides of the screen panel, providing access to the protected components without requiring complete disassembly.
Solution Approach 2:
The protected internal components (shaft and exciter units) can be extracted from the sheathing tube sections independently. The sheathing tube sections remain installed on the screen panel structure, while only the internal components needing maintenance are removed and replaced, minimizing disruption to the overall system.
Data Source
AI summary
A screen device having a screen tray which can be vibrated by a vibratory drive having two exciter units mechanically intercoupled by a synchronization device. A sheathing tube extends between two lateral screen panels. At least one of the exciter units has a motor housing mounted in an aperture of one of the lateral screen panels. The sheathing tube has a sheathing tube holder disposed in the area of the inside of the lateral screen panel which sheathing tube holder has at least one fit mount. A fastening element having a securing section is pressed into the fit mount non-rotatably and in an axially immovable manner. A stud of the fastening element is guided through apertures in the lateral screen panel and a fastening flange of the motor housing to connect the motor housing to the lateral screen panel.