Buffer Skip Lining Structure for Coal Impact and Abrasion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The frequent impact and abrasion of coal blocks and minerals on the lining plates of large-tonnage mine hoisting skips lead to premature wear and tear, necessitating frequent repairs and replacements, which results in material and financial waste, as well as reduced mining efficiency.
Innovation Solution
A large-tonnage coal dropping buffer skip is designed with steel wire rope shock absorbers connecting lining plates to a guide frame, allowing for shock absorption and buffer effects, featuring a simple structure with easily removable and replaceable lining plates, and flexible installation on the sidewalls and bottom of the skip.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If lining plates are directly and fixedly welded to the skip sidewall, then the lining plates are securely fixed, but the frequent repair and replacement causes shutdown and waste of resources
Solution Approach 1:
The lining plate system is segmented into detachable components: the lining plate can be separated from the support frame through fasteners, and the support frame is separable from the skip sidewall. This segmentation enables quick replacement of worn lining plates without replacing the entire assembly, resolving the contradiction between secure fixation and efficient maintenance.
Solution Approach 2:
The connection between the support frame and skip sidewall transitions from a fixed welded state to a dynamic, adjustable state using fasteners. This allows the system to adapt between being securely fixed during operation and easily removable for maintenance, balancing reliability with productivity.
2Device complexity
If lining plates are directly welded to the skip sidewall, then the structure is simple, but the service life of the skip is reduced due to frequent repairs
Solution Approach 1:
The lining plate system is divided into separable components (lining plate, support frame, fasteners) that can be independently replaced. This segmentation extends the service life of the skip by allowing only the worn lining plates to be replaced while retaining the reusable support frame structure.
Solution Approach 2:
The design enables selective discarding of worn lining plates while recovering and reusing the support frame structure. This extends the overall service life of the skip system by separating the consumable lining plates from the durable support structure.
3Object-affected harmful factors
If shock absorbers are used to connect lining plates, then impact abrasion damage is reduced, but the device complexity increases
Solution Approach 1:
Shock absorbers are introduced as intermediary elements between the skip sidewall and the lining plate support frame. These intermediaries absorb impact energy from coal blocks, reducing direct transmission to the lining plates and minimizing abrasion damage, while maintaining a relatively simple overall structure.
Solution Approach 2:
The shock absorbers provide beforehand cushioning by being pre-installed to absorb impact forces before they reach the lining plates. This protective mechanism reduces wear and extends the service life of the lining plates without significantly complicating the structure.
4Stability of the object's composition
If multiple coal dropping buffer devices are installed, then loading stability is improved, but the device complexity and installation difficulty increase
Solution Approach 1:
The buffer system is segmented into multiple independent coal dropping buffer devices that can be installed at different locations (sidewall and bottom). Each device is a self-contained unit with standardized components, allowing improved loading stability through multiple devices while keeping individual device complexity manageable.
Solution Approach 2:
The coal dropping buffer devices are designed as universal, multi-functional units that can be installed in multiple locations (sidewall and bottom of the skip) to perform the same shock absorption function. This standardization allows improved stability through multiple devices without proportionally increasing complexity.
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 solution effectively prolongs the service life of the skip by reducing impact abrasion damage, improving loading stability, and enhancing production efficiency by allowing quick and efficient replacement of damaged lining plates.
Implementation Method 1
steel wire rope shock absorbers connecting lining plates to a guide frame, allowing for shock absorption and buffer effects
Data Source
AI summary
A large-tonnage coal dropping buffer skip for a mine is disclosed. A loading skip box (14) is installed at the top of a large-tonnage skip (12), a coal dropping buffer device (13) is arranged on the inner sidewall of the large-tonnage skip (12), and the coal dropping buffer device (13) includes: a frame (1) fixedly connected with the inner sidewall of the large-tonnage skip (12); a lining plate guide frame (6) connected with the frame (1) through shock absorbers (2), guide sliding grooves being formed in the lining plate guide frame (6); a lining plate support (4) slidably nested in the guide sliding grooves in the lining plate guide frame (6), hoisting lugs (9) for hoisting being arranged at the top end of the lining plate support (4); and a lining plate (5) detachably connected with the lining plate support (4) through fasteners (7).