Mining Subsidence Leveling Mechanism for Uneven Ground Setup
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Solution Overview
Problem
Conventional level instruments for surveying mining subsidence zones in coal mining areas face instability and prolonged adjustment times due to soft geological conditions and uneven ground, leading to inconvenient and time-consuming operations.
Innovation Solution
A level instrument with a rotatable leveling mechanism and a movable lifting mechanism, featuring a screw rod, threaded sleeve, rotating disc, spherical shell, and lifting bracket, allows for direct adjustment of levelness and height, simplifying the operation process and improving stability and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional level instrument is used with a tripod, then the instrument can be placed on the ground, but the placement becomes unstable and requires frequent rough leveling due to soft geological conditions and uneven ground
Solution Approach 1:
The instrument is divided into separate functional modules: a bottom plate for placement, a leveling mechanism for adjusting levelness, and a lifting mechanism for adjusting height. This segmentation allows each component to independently address specific problems, with the bottom plate providing stable placement and the mechanisms enabling easy adjustment without requiring a tripod
Solution Approach 2:
The leveling mechanism and lifting mechanism are designed to be movable and adjustable rather than fixed. The leveling mechanism can rotate to adjust levelness in any direction, and the lifting mechanism can move up and down to adjust height, making the instrument adaptable to uneven ground conditions and improving both stability and ease of operation
2Measurement precision
If the level instrument is placed and adjusted manually, then the instrument can be positioned, but the adjustment process is time-consuming and affects surveying progress
Solution Approach 1:
The bottom plate is pre-equipped with ground nails that are inserted into the ground before placing the instrument. This preliminary action ensures stable placement is achieved quickly without requiring time-consuming adjustment procedures, as the stable base is already in place for the leveling and lifting mechanisms to operate from
3Reliability
If the tripod is used to support the level instrument, then the instrument can be supported, but the sharp bottom of the support rod tilts when inserted into the soil, causing instability
Solution Approach 1:
The support system is segmented into a bottom plate with ground nails for placement stability, a leveling mechanism for levelness adjustment, and a lifting mechanism for height adjustment. This eliminates the need for a tripod and its problematic sharp support rod, replacing it with a distributed nail-based placement system that provides stable support without tilting
Solution Approach 2:
The bottom plate acts as an intermediary between the instrument and the ground. Instead of using a sharp support rod that tilts in soft soil, the bottom plate distributes the load through multiple ground nails, providing a stable intermediary connection that prevents tilting and improves overall support stability
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 instrument simplifies the operation process and enhances surveying efficiency by allowing direct adjustment of levelness and height, reducing the time required for setup and improving the overall stability on uneven ground.
Implementation Method 1
the threaded sleeve is sleeved on the screw rod; and the rotating disc is provided on the threaded sleeve
Implementation Method 2
the spherical shell is slidably provided on the rotating disc; and a lower end of the groove is provided with a sphere, and the sphere is fitted into the spherical shell
Data Source
AI summary
A level instrument for surveying a mining subsidence zone in a coal mining area includes a bottom plate, a leveling mechanism, a lifting mechanism, and a level instrument body, where the leveling mechanism is provided on the bottom plate, the lifting mechanism is provided on the leveling mechanism, and the level instrument body is provided on the lifting mechanism. A surveying method using the level instrument is further provided. The level instrument is placed at a surveying location through the bottom plate, a levelness of the level instrument body is directly adjusted through the leveling mechanism below the level instrument body, and a height of the level instrument body is directly adjusted through the lifting mechanism. In this way, the operation process of the level instrument is simplified, and the overall surveying efficiency is improved.