Rigid-Frame Vibrating Sieve for Compact Surface-Stable Screening
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Solution Overview
Problem
Existing motorized vibrating screens are large and heavy, requiring a stable frame suspended from springs, which complicates their design and stability on various surfaces.
Innovation Solution
A compact motorized vibrating screen design with a rigid frame directly attached to legs, where the motor vibrates the frame and screen, using an unbalanced motor aligned at a specific angle, and elastic feet for stability on different surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a stable frame suspended from springs is used, then the vibrating screen can be set into vibration, but the device becomes large and heavy
Solution Approach 1:
The patent removes the spring suspension system and heavy stable frame from the design, extracting only the essential vibration function. The motor directly vibrates the screen without requiring a separate stable frame structure, thus reducing weight while maintaining vibration capability.
Solution Approach 2:
The patent combines the frame, screen, and motor into a single integrated vibrating unit. Instead of having a separate stable frame suspended from springs, the motor is mounted directly on the frame which also supports the screen, merging multiple components into one compact assembly that vibrates as a unified structure.
2Volume of moving object
If the frame is rigidly connected to legs, then the device becomes compact, but stability on different surfaces becomes problematic
Solution Approach 1:
The patent makes the connection between the rigid frame and legs dynamic rather than fixed. The legs are pivotally mounted to the frame, allowing them to adapt their position and orientation based on the surface they contact. This dynamic adjustment capability enables the compact device to maintain stability on various surfaces despite the rigid frame construction.
3Device complexity
If the motor is rigidly connected to the frame, then the device structure is simplified, but the entire device vibrates instead of just the screen
Solution Approach 1:
The patent intentionally utilizes mechanical vibration as the core operating principle. The motor is rigidly connected to the frame to directly transmit vibratory motion to the screen. The vibration is not considered a harmful effect to be isolated, but rather the desired functional output that enables material separation through the vibrating screen mesh.
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 design achieves a compact, stable, and efficient vibrating screen that can operate on various surfaces without mechanical decoupling, ensuring effective material separation.
Implementation Method 1
The motor is an unbalanced motor. The shaft of the unbalanced motor is preferably aligned parallel to the rear, upper edge of the vibrating screen.
Implementation Method 2
a motor for causing the vibrating screen to vibrate, wherein the motor is rigidly connected to the frame and causes it to vibrate
Implementation Method 3
each leg comprises a base which is an elastic element and has a downwardly tapering shape
Implementation Method 4
The bases preferably have a cross-section that tapers downwards
Data Source
AI summary
A device including a vibrating screen and a motor for causing the vibrating screen to vibrate, wherein the vibrating screen is attached to a rigid frame, wherein the motor is rigidly attached to the frame and causes it to vibrate, wherein the angle between the plane of the vibrating screen and the mounting surface of the motor is in the range of 30 to 60 degrees and/or the legs of the device are attached to the frame.