Continuous Miner Sumping Frame Dynamics for Stability
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Solution Overview
Problem
Continuous mining machines face instability issues during the forward sumping process, which affects the efficiency and safety of mineral extraction in underground mining operations.
Innovation Solution
A continuous miner design featuring a support frame with a sumping frame and pivotally mounted cutting drum, gathering head, and independently pivotable drilling platforms, supported by hydraulic cylinders for enhanced stability and positioning during forward movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the cutting drum is sumped forward during mining operations, then the mining head can advance into the mine face to dislodge mineral, but the mining machine experiences instability that affects efficiency and safety
Solution Approach 1:
The sumping frame is designed to be movable relative to the support frame, allowing dynamic adjustment during the sumping operation. The frame can pivot forward and rearward based on hydraulic cylinder actuation, enabling the machine to adapt its configuration during mining operations to maintain stability while advancing the cutting drum into the mine face.
Solution Approach 2:
The mining machine is divided into distinct functional modules: a fixed support frame and a movable sumping frame with the cutting drum. This segmentation allows the sumping frame to move independently during sumping operations while the support frame remains stable, providing structural support and enabling the cutting drum to advance without compromising overall machine stability.
2Adaptability or versatility
If the gathering head is pivotally mounted on the sumping frame for mineral collection, then mineral gathering capability is improved, but the complexity of the mining machine increases
Solution Approach 1:
The sumping frame serves multiple functions: it supports the cutting drum during sumping operations, provides a mounting structure for the gathering head, and acts as a movable platform that can pivot independently. This multi-functionality reduces the need for separate structural elements, thereby managing complexity while enhancing adaptability for both cutting and gathering operations.
3Adaptability or versatility
If drilling platforms are pivotally mounted on the support frame for independent positioning, then operational versatility is enhanced, but the device complexity increases
Solution Approach 1:
The drilling platforms are pivotally mounted on the support frame, allowing them to be dynamically positioned and adjusted during operations. This pivotal mounting enables the platforms to rotate and orient themselves as needed for different drilling angles and positions, providing operational flexibility without requiring complex rigid mounting structures or multiple fixed platforms.
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 provides improved structural stability and precise positioning of the cutting drum and gathering head, enhancing the efficiency and safety of mineral extraction by maintaining consistent contact with the mine face and facilitating better mineral collection and haulage.
Implementation Method 1
a hydraulic cylinder for pivoting and fixing the gathering head relative to the sumping frame in both the raising and lowering directions
Implementation Method 2
a hydraulic cylinder for pivoting and fixing the first drilling platform relative to the support frame independently of the second drilling platform, and a hydraulic cylinder for pivoting and fixing the second drilling platform relative to the support frame independently of the first drilling platform
Data Source
AI summary
A continuous miner including a support frame having a support frame front, and a sumping frame mounted on the support frame for forward and rearward movement relative to the support frame. The sumping frame has a sumping frame front, and the miner further includes a cutting drum pivotally mounted on the sumping frame, the cutting drum being positioned near the sumping frame front. The miner also includes a gathering head for gathering mined minerals pivotally mounted on the sumping frame front, and a hydraulic cylinder for pivoting and fixing the gathering head relative to the sumping frame in both the raising and lowering directions. The continuous miner also includes a first drilling platform pivotally mounted on the support frame front, a second drilling platform pivotally mounted on the support frame front and spaced apart from the first drilling platform, a hydraulic cylinder for pivoting and fixing the first drilling platform relative to the support frame independently of the second drilling platform, and a hydraulic cylinder for pivoting and fixing the second drilling platform relative to the support frame independently of the first drilling platform.