Mine Support Device with Spring Buffering for Rock Burst Impact
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Solution Overview
Problem
Existing mine support devices are unable to provide comprehensive support for mine walls and tunnels, and they struggle to effectively buffer rock bursts, leading to potential damage and instability.
Innovation Solution
An automatic support device featuring symmetrically distributed bases, sliding frames, hydraulic rods, and a main support plate with adjustable pushing rods and springs, designed to absorb impact forces and provide enhanced support for mine structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing support devices are used, then the structure is simple, but the device cannot provide complete support for mine tunnels and cannot effectively buffer rock bursts
Solution Approach 1:
The support device is divided into multiple functional modules: hydraulic support system, side wall support brackets, pushing rods with adjustable positions, and spring buffering components. Each module performs a specific function, collectively providing comprehensive support for the mine tunnel while maintaining manageable complexity through modular design.
Solution Approach 2:
The support device integrates multiple functions into a single system: it provides roof support through hydraulic rods, side wall support through brackets, impact buffering through springs, and adjustable positioning through pushing rods. This multi-functional design ensures complete support for mine tunnels without requiring multiple separate devices.
2Force
If hydraulic support is used to provide support, then the support force is sufficient, but the hydraulic support deforms under large impact forces causing damage to the device
Solution Approach 1:
Spring buffers are pre-installed between the hydraulic support and the support plate to absorb impact forces before they reach the hydraulic cylinder. This beforehand cushioning protects the hydraulic support from deformation and damage during rock bursts while maintaining sufficient support force under normal conditions.
Solution Approach 2:
The spring buffer acts as an intermediary element between the hydraulic support and the rock mass. It mediates the transmission of forces, allowing the hydraulic support to provide strong support force while the spring absorbs and dissipates impact energy, preventing direct transmission of damaging forces to the hydraulic cylinder.
3Reliability
If the support device does not include side wall support, then the device structure is simple, but the device cannot provide complete support for mine tunnels
Solution Approach 1:
The support system is segmented into distinct components for different support needs: hydraulic rods for roof support, side wall brackets for lateral support, and pushing rods for adjustable positioning. This segmentation allows the device to provide complete support for all tunnel surfaces while keeping each component relatively simple and manageable.
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 device effectively reduces impact forces during rock bursts, maintains mine stability by distributing support forces evenly, and prevents damage to the support system by adjusting the positions of pushing rods and using springs to absorb energy.
Implementation Method 1
springs are fixedly connected between the second pushing rods and adjacent piston plates, and between the fourth pushing rods and adjacent piston plates
Implementation Method 2
The present disclosure reduces the impact force on the device when the rock burst occurs in the mine by compressing the springs between the piston plate and the fourth pushing rods
Implementation Method 3
the first pushing rods, the second pushing rods, the third pushing rods, and the fourth pushing rods all contain hydraulic fluid
Implementation Method 4
the first pushing rods with evenly spaced are communicated with the first oil pipe communicated with the adjacent second pushing rods
Data Source
AI summary
An automatic support device for resisting rock burst in mines is provided, which includes bases symmetrically distributed, sliding frames are slidably connected to the bases, hydraulic rods are fixedly connected to the bases, and telescopic ends of the hydraulic rods are fixedly connected to the adjacent sliding frames. The sliding frames are fixedly connected to brackets, and the brackets symmetrically distributed are provided with a main support plate, on which pushing rods are provided. The device can slow down the impact force of the device when rock burst occurs in the mine, at the same time, it plays a supporting role in the mine, ensuring the stability of the roof of the mine.