Belt-Driven Vibrator Layout for Compact Mineral Screens
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Solution Overview
Problem
Existing mineral material processing devices face challenges in creating compact drive systems for vibrators that minimize space requirements, reduce adverse forces on bearings, and maintain effective shaking action while addressing motor cooling and airflow issues.
Innovation Solution
A belt or chain-driven vibrator design where the shaft drive wheel is positioned at least partially around the bearing, with the eccentric mass brought closer to the device frame, using multiple belts or chains to reduce eccentric loads and enhance redundancy, and an integrated cradle for the electric motor to minimize space and improve airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electric motor is radially offset and axially extending from the drive pulley, then the motor can be mounted apart from the screen frame, but the width of the screen must be increased to accommodate the drive system
Solution Approach 1:
The drive wheel is positioned to reside at least partially around the bearing, nesting the drive mechanism within the existing structural envelope rather than extending outward. This allows the motor and drive components to be integrated within the screen frame width, eliminating the need to increase screen width while maintaining motor mounting flexibility
2Volume of moving object
If the eccentric masses are positioned immediately adjacent to the screen frame, then space requirement inside the screen is reduced and shaking force is enhanced, but adverse forces on bearings increase
Solution Approach 1:
The drive wheel is arranged in a radial configuration around the bearing, changing the spatial dimension from axial placement to radial placement. This dimensional change allows the eccentric masses to be positioned adjacent to the screen frame for space efficiency while the radial drive wheel configuration distributes bearing loads more favorably, reducing adverse forces
3Device complexity
If the motor is mounted in a reversed direction, then space may be saved, but cooling of the motor is hindered by obstructing airflow
Solution Approach 1:
The drive system is segmented into distinct functional zones: the motor mounting area, the drive wheel area, and the airflow path. By segmenting the configuration, the motor can be mounted in a space-efficient orientation while maintaining a clear airflow path for cooling, as the drive wheel's radial positioning around the bearing creates separate spatial zones that accommodate both compact mounting and thermal management
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 more compact, efficient, and reliable vibrator system with reduced bearing loads and dynamic forces, enabling smaller transport width and lower manufacturing costs.
Implementation Method 1
The vibrators are typically driven by a rotating drive that rotates an eccentric system such that vibration is induced through inertia of the eccentric system
Implementation Method 2
A belt or chain groove is formed on an outer circumference of the drive wheel
Data Source
AI summary
A belt or chain driven mineral material processing device vibrator. The vibrator includes a vibrator shaft drive wheel configured to reside at least partially in a radial direction around a bearing of a vibrator shaft that extends through a device frame of a mineral material processing device. An eccentric is configured to be mounted to the vibrator shaft so that the eccentric extends in axial direction of the vibrator shaft beyond the vibrator shaft drive wheel outwards of the device frame. A method for vibrating a mineral material processing device by a belt or chain, a method for producing a belt or chain driven mineral material processing device vibrator, a method for controlling a belt or chain driven mineral material processing device vibrator, and a mobile mineral material processing plant including the mineral material processing device vibrator are also disclosed.