Pivotable Roller Frame Sections for Gap Adjustment
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Solution Overview
Problem
Existing roller crushers face complexity in adjusting the gap between rollers, leading to uneven wear and power draw due to the need for numerous hydraulic working chambers and labor-intensive maintenance.
Innovation Solution
A roller crusher design with pivotably connected roller frame sections and independently adjustable gap and balancing cylinders allows for simple and reliable adjustment of the gap position relative to the base frame, enabling centering and gap width adjustment without affecting each other, along with a fixed feeding arrangement and PLC monitoring for optimal operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple hydraulic working chambers are used to adjust roller position and gap width, then adjustment capability is improved, but device complexity increases
Solution Approach 1:
The roller frame is divided into two independently pivotable sections (first and second roller frame sections), each capable of independent adjustment. This segmentation allows each section to be adjusted separately using fewer hydraulic cylinders, reducing overall system complexity while maintaining full adjustment capability.
Solution Approach 2:
Each roller frame section is designed with multi-functionality, serving both as a structural support and as an independently adjustable unit. The sections can perform multiple functions including positioning, gap adjustment, and alignment, eliminating the need for separate adjustment mechanisms for each function.
2Adaptability or versatility
If the feeding arrangement is made movable to accommodate roller position adjustments, then adaptability is improved, but device complexity and cost increase
Solution Approach 1:
Instead of making the feeding arrangement movable to adapt to roller position changes, the invention inverts the approach by making the roller frames movable while keeping the feeding arrangement fixed. This reversal simplifies the overall system design and reduces complexity.
3Stability of the object's composition
If the roller frames are rigidly connected to the base frame, then structural stability is improved, but adjustment capability is reduced
Solution Approach 1:
The roller frame sections are designed with dynamic characteristics, being pivotably connected to the base frame rather than rigidly fixed. This allows the structure to transition between stable and adjustable states, maintaining structural stability during operation while enabling position and gap adjustments when needed.
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 design enhances the robustness and cost-effectiveness of the roller crusher by allowing independent adjustments, reducing uneven wear and power consumption, and simplifying maintenance through easy access and alignment of the rollers.
Implementation Method 1
At least one balancing cylinder is arranged to extend between one of the roller frame sections and the base frame such that when the at least one balancing cylinder is activated, the interconnected roller frame sections will pivot relative to said base frame
Implementation Method 2
the roller crusher further comprises at least one gap adjusting cylinder interconnecting said roller frame sections and is arranged to adjust the gap width between the rollers
Implementation Method 3
The roller frames are each arranged for carrying one of said rollers in bearings arranged at opposed ends of said each roller
Data Source
Figure 1
AI summary
The present invention relates to a roller crusher (1) having two generally parallel rotatable rollers (7, 8) separated by a gap, and a feeding arrangement (2) for feeding material to the rollers (7, 8). The roller crusher (1) further comprising a base frame (11) and a first and a second roller frame section(9, 10), each of the first and second roller frames sections (9, 10) being pivotably connected to the base frame (11) and arranged for carrying one of the rollers (7, 8) in bearings arranged at opposed ends of each roller (7, 8). The roller crusher (1) also comprises at least one balancing cylinder (17, 18) extending between one of the roller frame sections (9, 10) and the base frame (11) such that when the at least one balancing cylinder (17, 18) is activated, the interconnected roller frame sections (9, 10) will pivot relative to the base frame (11), thus adjusting the position of the rollers (7, 8) relative to the base frame (11).