Variable Slope 3-Shaft Vibrating Screen Lubrication
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Solution Overview
Problem
Existing vibrating screens with triple shaft mechanisms require multiple screens built on different slopes for various applications, leading to high costs and operational difficulties when changing screen angles, and suffer from oil distribution issues that result in oil starvation or flooding, particularly when operating at inclined angles.
Innovation Solution
A system that allows a three-shaft vibrating screen to operate over a wide range of angles without modifying the lubrication system, featuring a mechanism to measure and adjust the slope angle, detect oil level changes, and regulate rotation rates to maintain optimal oil distribution, ensuring consistent lubrication across all angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a sloped gear case is used to allow the screen to operate at inclined angles, then the screen can be used in applications with high percentages of oversize material, but lubrication oil pools at the low end causing oil starvation at the high end and excessive heat at the low end
Solution Approach 1:
The gear case is designed with a variable slope angle mechanism that allows the slope to be adjusted dynamically based on operating conditions. This enables the system to adapt the slope angle to match the application requirements while maintaining proper oil distribution and lubrication across all operating points.
Solution Approach 2:
The invention changes the parameter of gear case slope angle from a fixed value to a variable parameter that can be adjusted. By allowing the slope angle to change, the system can optimize oil flow patterns and lubrication distribution for different operating conditions, preventing both oil starvation and excessive heat generation.
2Adaptability or versatility
If multiple screens built on different slopes are used to cover a wide range of angles, then various applications can be served, but the cost and operational difficulty increase significantly
Solution Approach 1:
The invention creates a universal screen design where a single screen unit can operate across a wide range of slope angles through the variable slope angle mechanism. This eliminates the need for multiple specialized screens for different applications, reducing complexity and cost while maintaining versatility.
Solution Approach 2:
By implementing a dynamic slope angle adjustment mechanism, the screen transitions from a static, application-specific design to a dynamic, multi-application system. This allows one screen to serve multiple functions across different slope requirements, reducing the total number of screens needed.
3Reliability
If the amount of oil in the gear case is increased to reduce oil starvation, then lubrication coverage improves, but the lower bearings become flooded causing excessive heat
Solution Approach 1:
The invention changes the parameter of gear case slope angle to optimize oil distribution patterns. By adjusting the slope angle, the system can control oil flow dynamics to ensure adequate lubrication coverage without causing flooding and excessive heat generation at the lower bearings.
Solution Approach 2:
The variable slope angle mechanism allows the system to respond to operating conditions by adjusting the slope angle to maintain optimal oil distribution. This feedback mechanism ensures that lubrication coverage is sufficient while preventing oil flooding and associated temperature problems.
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
Enables a single triple-shaft vibrating screen to operate effectively over a wide range of angles, eliminating oil-starved bearings and excessive heat issues, while maintaining efficient lubrication and maximizing clearance under shaft housings, thus increasing the versatility and efficiency of screening operations.
Implementation Method 1
The different sized openings in the mesh allow sizing of materials according to the size of these openings. The box structure usually contains an eccentric weighted shaft that shakes the box and its screen mesh to agitate and separate the granular materials fed into the top of the machine.
Implementation Method 2
vibrating screens used in mining or road building material handling and processing... mounted on flexible springs
Implementation Method 3
the three-shaft vibrating mechanism consists of three eccentrically weighted shafts geared together, so that the center or second shaft rotates counter of the adjacent first and third shafts
Implementation Method 4
This mechanism utilizes a common gear case with common oil splash lubrication for all gears and bearings
Data Source
AI summary
Disclosed is a vibrating material sorting screen with a substantially variable tilt angle and a tilt angle measuring device where the screen has a gear box which is horizontal when the screen is horizontal and inclined when the screen is inclined and further where the gear box has a plurality of oil level sensors or indicators therein which are sized, placed and configured to provide proper oil volume while the screen is oriented horizontally or at various inclines.