Roll Lever Module Linear Guide for Compact Roller Mill Arrangement
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Solution Overview
Problem
Existing roller lever modules in roller mills are often bulky, making it difficult to accommodate multiple grinding rollers around a grinding table in a space-efficient manner, especially in larger mills where vibrations and uneven grinding beds require effective compensation and load management.
Innovation Solution
A compact roller lever module design featuring a guiding and bearing unit with a central body and outer sleeve, utilizing linear guide bearings and a torque transmission unit to distribute loads and allow axial movement, enabling efficient compensation of uneven grinding beds and rotation-induced torques, while maintaining a compact structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional roller lever module designs are used, then the structure can support grinding rollers and absorb vibrations, but the module size becomes large and space-consuming
Solution Approach 1:
The roller lever module is segmented into distinct functional units: a guide and bearing unit for axial displacement, a torque transmission unit for bowl rotation, and a roller lever assembly. This segmentation allows each component to be optimized independently, reducing overall module size while maintaining vibration absorption and load support capabilities through specialized design of each segment.
Solution Approach 2:
The guide and bearing unit, torque transmission unit, and roller lever assembly are nested within each other in a compact arrangement. The roller lever is positioned within the guide and bearing unit, which itself is integrated with the torque transmission unit, creating a space-efficient configuration that minimizes the overall volume of the roller lever module while preserving all necessary functions.
2Productivity
If multiple grinding rollers are arranged around a grinding plate in larger mills, then grinding capacity increases, but the bulky size of traditional roller lever modules makes space-efficient arrangement difficult
Solution Approach 1:
The nested configuration of the guide and bearing unit, torque transmission unit, and roller lever assembly creates a compact roller lever module that occupies minimal space. This allows multiple grinding rollers to be arranged closely around the grinding plate, increasing grinding capacity without requiring excessive floor space or mill volume.
Solution Approach 2:
By dividing the roller lever module into separate functional segments, each optimized for its specific task, the overall footprint is reduced. This segmentation enables tighter spacing between adjacent grinding rollers, allowing higher productivity through increased roller count in the same available space.
3Adaptability or versatility
If the roller lever is rigidly fixed to support grinding rollers, then structural stability is maintained, but freedom of movement for compensating uneven grinding beds is restricted
Solution Approach 1:
The guide and bearing unit enables dynamic axial displacement of the roller lever along the guide axis, allowing the grinding roller to move freely to compensate for uneven grinding beds. Meanwhile, the torque transmission unit provides stable rotational support, creating a system that is both adaptable to surface variations and structurally stable during operation.
Solution Approach 2:
The separation of the guide and bearing unit (providing movement freedom) from the torque transmission unit (providing structural stability) allows the roller lever to have both adaptability for compensation and rigidity for stable operation. Each segment handles a specific aspect of the contradiction, achieving both goals simultaneously.
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 allows for a more compact and efficient arrangement of grinding rollers, effectively managing loads and vibrations, enabling better grinding performance and operational reliability by distributing forces through separate units and using hydrostatic bearings for high power density and lubrication.
Implementation Method 1
the guide and bearing unit is designed as a linear guide for axially displacing the roller lever along the guide axis
Implementation Method 2
US 4 218 023 A refers to roller lever modules with hydrostatic axial bearings, the latter being able to support the grinding plate and absorb the vertical loads
Implementation Method 3
a unit for transmitting torque from the roller lever to the central body is arranged between the outer sleeve and the central body
Implementation Method 4
using hydrostatic bearings for high power density and lubrication
Data Source
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AI summary
The invention relates to a roll lever module for the grinding roll of a roller mill, wherein a grinding roll can be secured to the roll lever, on the grinding table end thereof. The roll lever module has a guiding and bearing unit, wherein the roll lever is coupled to the guiding and bearing unit by the side thereof facing away from the grinding table. The guiding and bearing unit is designed as a linear guide for moving the roll lever axially along a guide axis. To this end, the guiding and bearing unit has, in the direction of the guiding axis, a central body which is surrounded by an outer sleeve. A linear guide bearing and a unit for transferring a torque from the roll lever to the central body are provided.