3D Coal Seam Simulation Frame With Adjustable Dip Angle
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Solution Overview
Problem
Existing three-dimensional physical simulation devices face challenges such as large size, difficulty in excavating coal seams, high labor intensity in paving inclined coal seams, inability to adjust experimental schemes post-extraction, and inability to simulate water-retaining mining and accurate coal seam dip angles.
Innovation Solution
An angle-adjustable three-dimensional physical simulation device with a base, frame, angle-adjusting device, and lifting combined module using independent cushion blocks and a hydraulic cylinder to simulate coal seam mining, allowing for flexible adjustment of coal seam angles and sealed waterproof spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If pre-buried wood strips, steel plates, aluminum strips are extracted to simulate coal seam excavation, then coal seam mining can be simulated, but the top and bottom plates are seriously damaged and experimental reliability is affected
Solution Approach 1:
The patent divides the coal seam simulation into multiple independent cushion blocks arranged in layers. Each cushion block can be independently removed using a lifting device, allowing coal seam excavation simulation without extracting pre-buried strips that would damage the top and bottom plates. This segmentation enables controlled removal of individual blocks while maintaining the integrity of the surrounding structure.
Solution Approach 2:
The patent introduces a lifting device as an intermediary mechanism between the operator and the cushion blocks. This device uses chains and pulleys to lift and remove cushion blocks vertically, replacing the traditional method of extracting pre-buried strips. The intermediary lifting mechanism eliminates direct contact and damage to the top and bottom plates during the excavation simulation process.
2Adaptability or versatility
If inclined coal seams are paved manually, then different dip angles can be simulated, but labor intensity is high and paving quality is poor
Solution Approach 1:
The patent makes the frame structure rotatable relative to the base through a rotating mechanism, allowing the dip angle of the coal seam to be dynamically adjusted. The angle-adjusting device enables smooth rotation of the frame to achieve different inclination angles (0°-90°), replacing manual paving of inclined coal seams. This dynamic adjustment mechanism significantly reduces labor intensity while maintaining high paving quality and angle precision.
Solution Approach 2:
The patent replaces the manual mechanical paving process with an automated angle-adjusting mechanism. The rotating mechanism and angle-adjusting device use mechanical advantages (gears, pulleys, or hydraulic systems) to control the frame's rotation, substituting difficult manual inclined paving with easier automated angle adjustment. This reduces the physical effort required while achieving precise dip angle simulation.
3Productivity
If the experimental scheme is determined before model excavation, then the simulation can proceed, but the scheme cannot be adjusted after excavation and flexibility is poor
Solution Approach 1:
The patent segments the coal seam simulation into multiple independent cushion blocks that can be removed individually or in different patterns. This segmentation allows researchers to adjust the excavation scheme during the experiment by selecting which blocks to remove and when, providing flexibility without requiring complete re-excitation of the model. The modular structure enables adaptive experimental design while maintaining efficiency.
Solution Approach 2:
The patent introduces dynamic adjustability through the angle-adjusting device and the flexible removal sequence of cushion blocks. The experimental scheme can be dynamically modified by adjusting the frame angle or changing the removal pattern of cushion blocks during the experiment. This dynamic capability allows real-time scheme adjustment while maintaining experimental efficiency, eliminating the rigidity of pre-determined fixed schemes.
4Ease of manufacture
If the existing device is used, then coal seam excavation can be simulated, but the device cannot be sealed and water-retaining mining simulation cannot be realized
Solution Approach 1:
The patent introduces a sealing film or flexible barrier between the cushion blocks and the surrounding environment. This flexible sealing layer allows the device to be sealed while maintaining the ability to simulate water-retaining mining conditions. The sealing film prevents water leakage while allowing the cushion blocks to be independently removed, achieving both excavation simulation and water retention capabilities.
5Measurement precision
If the three-dimensional model is made larger to represent engineering prototype, then the simulation accuracy improves, but it becomes difficult to excavate coal seam
Solution Approach 1:
The patent divides the large three-dimensional model into multiple smaller, manageable cushion blocks. This segmentation allows the large model to maintain high simulation accuracy while enabling easy excavation of coal seams through the removal of individual blocks. The modular cushion block structure transforms the difficulty of excavating in a large continuous model into the simple task of removing discrete, pre-positioned blocks.
Solution Approach 2:
The patent introduces a lifting device as an intermediary mechanism to facilitate the removal of cushion blocks from the large three-dimensional model. This lifting mechanism provides mechanical assistance for extracting cushion blocks from the large model, making the excavation process easier while maintaining the model's large size and high simulation accuracy. The intermediary lifting system bridges the gap between model size and excavation ease.
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 accurate, flexible, and low labor-intensive simulation of coal seam excavation with minimal disturbance to the top and bottom plates, and the ability to simulate water-retaining mining conditions.
Implementation Method 1
the angle-adjusting device comprises a hydraulic cylinder; the bottom end of the hydraulic cylinder is rotatably connected with the base; the output end of the hydraulic cylinder is fixedly connected with the limiting plate
Implementation Method 2
the lifting combined module comprises a plurality of lifting pieces; the lifting piece comprises a bolt and a cushion block; the bolt penetrates through the limiting plate and is in threaded connection with the limiting plate; one end of the bolt located in the frame is rotatably connected with the cushion block
Data Source
AI summary
Disclosed is an angle-adjustable three-dimensional physical simulation device for equivalent coal seam mining, which comprises a base, a frame, a loading frame, an angle-adjusting device, a limiting plate and a lifting combined module. The top of the base is fixedly connected with the frame; the top of the frame is fixedly connected with the loading frame; the angle-adjusting device is located between the base and the frame; the bottom of the frame is fixedly connected with the limiting plate; the limiting plate is penetrated with a lifting combined module; the lifting combined module comprises a plurality of lifting pieces, and the lifting pieces comprise bolts and cushion blocks; the bolt penetrates through the limiting plate and is in threaded connection with the limiting plate; and one end in the bolt frame is rotatably connected with the cushion block.