Rib Strap With Adjustable Center Plate for Mine Support
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Solution Overview
Problem
Existing mine rib support systems face difficulties in installation due to uneven rib surfaces and the need for bolts to be installed at awkward angles, and they require multiple components and high specific gravity to sink during coal preparation, complicating the process.
Innovation Solution
A rib strap design featuring elongate members and center plates with specific gravity greater than 1.68, allowing for easier installation with a single mine bolt and adjustable positioning, and being cuttable by mining equipment, addresses the installation challenges and sinking requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional fiberglass rib pans and bolts are used, then the rib support structure can be installed, but the installation becomes difficult due to uneven rib surfaces and required bolt angles
Solution Approach 1:
The rib strap incorporates adjustable positioning capabilities that allow the support structure to adapt to uneven rib surfaces and varying installation angles, transforming a static rigid structure into a dynamically adjustable one that simplifies installation operations
Solution Approach 2:
The design allows modification of geometric parameters such as plate orientations and bolt hole positions to accommodate different rib surface conditions, enabling installation at perpendicular angles rather than awkward angles, thereby improving ease of operation
2Strength
If multiple components are used in the rib support structure, then the structural integrity is maintained, but the installation process becomes more complex
Solution Approach 1:
Multiple support components are merged into an integrated rib strap assembly where end plates, center plates, and elongate members work as a unified structure, maintaining structural integrity while simplifying the installation process by reducing the number of separate assembly steps
Solution Approach 2:
The rib strap design creates a multi-functional assembly that provides both structural support and simplified installation through integrated features, allowing the same structure to achieve multiple objectives simultaneously
3Reliability
If the rib support structure is designed to sink during coal preparation, then the specific gravity must be greater than 1.7, but this complicates the material selection and design
Solution Approach 1:
The design specifies a specific gravity parameter greater than 1.68 for the rib strap materials, ensuring sinking capability during coal preparation while providing clear manufacturing guidelines that simplify material selection rather than complicating it
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 rib strap simplifies the installation process by allowing a single bolt to secure the rib strap at a perpendicular angle, reducing installation time and complexity, and ensures sinking during coal preparation with its high specific gravity configuration.
Implementation Method 1
the first end plate and the second end plate and the center plate each have a specific gravity greater than 1.68
Data Source
AI summary
A mine rib support includes first and second elongate members each having a first end and a second end, a center plate having a body defining a first opening that receives the first elongate member, a second opening that receives the second elongate member, and an installation opening configured to receive a mine bolt, a first end plate defining first and second openings for receiving the first end of the first and second elongate members, respectively, and a second end plate defining first and second openings for receiving the second end of the first and second elongate members, respectively.