Eccentric Roller Crusher Screening Drive Mechanism
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Solution Overview
Problem
Existing roll crushers with movable screening devices require a separate drive motor and have a complex design, limiting their compactness and increasing costs.
Innovation Solution
The screening device is supported on a stationary abutment and the crusher roller, utilizing the roller's movement to create a shaking motion, eliminating the need for a separate drive motor and allowing for a more compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a separate drive motor is used to operate the screening device, then the screening function can be performed, but the device complexity increases and installation space requirements increase
Solution Approach 1:
The screening device is designed to be self-driven by utilizing the rotational movement of the crusher roller itself. The roller's rotation automatically causes the screening device to vibrate and perform its screening function, eliminating the need for a separate drive motor and reducing overall device complexity.
Solution Approach 2:
The crusher roller serves multiple functions: it performs the primary crushing function and simultaneously drives the screening device through its rotational movement. This multi-functionality reduces the number of separate components needed and simplifies the overall system.
2Ease of operation
If a separate drive motor is installed above the crushing roller, then the screening device can be driven, but the installation space requirement increases
Solution Approach 1:
The screening device uses the existing rotational energy of the crusher roller to drive its vibration and screening action, eliminating the need for a separate drive motor that would occupy space above the roller.
Solution Approach 2:
The driving function for the screening device is merged with the crusher roller's rotational movement. The roller's rotation directly translates into vibrational motion for the screening device, combining two functions into one mechanical system.
3Productivity
If the screening device is vibrated using an external drive, then screening performance improves, but the construction complexity increases
Solution Approach 1:
The screening device utilizes mechanical vibration generated by the crusher roller's rotation to improve screening performance. The roller's rotational movement creates vibrational forces that prevent material accumulation on the screen and enhance particle separation.
Solution Approach 2:
The vibration function is achieved self-service style by using the roller's own rotational energy to generate the necessary vibrational forces for effective screening, without requiring an external vibration drive system.
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 configuration simplifies the construction, reduces costs, and achieves a more compact design while improving screening performance by using the roller's movement to vibrate the screening device.
Implementation Method 1
the crusher roll is arranged eccentrically and freely rotatably on a drive shaft, with a crushing space being formed between the crusher roll and a rocker
Implementation Method 2
the movement of the crusher roller causes a shaking movement of the screening device supported on the at least one support surface
Data Source
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AI summary
The invention relates to a roller crusher, in particular an eccentric roller crusher, comprising a rotatable crusher roller (1) and a moveable device (2) which separates by screening. According to the invention, said device (2) which separates by screening is supported on one side, on a stationary abutment (8) and on the other side on at least one supporting surface (9) of the crusher roller (1). The movement of the crusher roller (1) causes the device (2) which separates by screening and which is supported on the supporting surface (9) to vibrate.