Coal mine belt inspection and inspection robot wireless charging: creating an unmanned intelligent transportation inspection system
Coal mine belt inspection and inspection robots, combined with wireless charging technology, are becoming important equipment to ensure mine safety and improve the operation and maintenance efficiency of the conveyor system. It realizes long-term, unmanned online monitoring around coal mine underground belt conveyors (belt conveyors), and solves the safety and reliability issues of traditional charging methods in underground environments through wireless charging.
Application scenarios and inspection objects
Coal mine belt inspection and inspection robots are mainly deployed in underground belt transportation lanes and ground coal transportation corridors to conduct real-time inspections of the transportation system. These areas have closed environments, large amounts of dust, high noise, and risks such as gas and coal dust explosions. Manual inspections are intensive and dangerous.
Key inspection objects include:
- Belt conveyor operating status: belt speed, deviation, slipping, belt breakage, coal pile and other working conditions.
- Health of key components: temperature and vibration of rollers, rollers, reducers, and motor bearings.
- Environment and safety: gas concentration, smoke, temperature, humidity and abnormal deformation of the belt corridor structure, etc.
System composition and key functions
Coal mine belt inspection robots generally adopt a wheeled or rail-mounted structure, automatically walk along a special track or channel next to the belt conveyor, and are equipped with a multi-sensor inspection system. The system usually consists of an ontology platform, a perception module, a navigation and positioning module, a communication and control platform, and a charging system.
Core features include:
- Visual and infrared detection: Use high-definition cameras and infrared thermal imaging cameras to identify apparent faults such as deviation, coal spreading, and tearing, and capture abnormal heating areas of rollers and drums.
- Acoustic and vibration monitoring: Use pickups and vibration sensors to identify early signs of failure such as bearing damage and mechanical shock.
- Autonomous inspection and alarm: Automatic round-trip inspection according to the set route and cycle. Once an abnormality is discovered, data will be uploaded immediately and audible, visual and remote alarms will be triggered.
Wireless charging technology and its characteristics
In order to solve the battery life problem caused by long-distance operation underground, belt inspection robots gradually adopt wireless charging technology as the main energy replenishment method. Wireless charging usually uses inductive coupling or non-contact charging structure. The fixed-end charging device is arranged in a safe house or a dedicated charging station. After the robot is in place, energy transmission is completed through electromagnetic coupling.
Compared with traditional wired or sliding contact charging, wireless charging has obvious advantages in coal mine environments:
- Improve intrinsic safety: Eliminate potential ignition sources such as plugging and unplugging sparks, exposed contacts and sliding conductor wear, making it easier to meet explosion protection and safety regulations.
- Reduce maintenance costs: There are no mechanical contact parts, which are not easy to accumulate dust and wear, reducing the workload of frequent maintenance and connector replacement.
- Charging alignment is more tolerant: a certain parking error is allowed to adapt to the impact of limited underground sites and positioning errors.
Value to coal mine production safety
The combination of coal mine belt inspection and inspection robots and wireless charging technology helps create an intelligent transportation system that is "safe with few people and safe with no one". Through high-frequency, full-coverage automatic inspections, hidden dangers such as belt deviation, roller jamming, and drum overheating can be exposed in advance, and the risks of major accidents such as belt breaks, fires, and gas accumulation can be reduced.
At the production management level, images, temperature, vibration and environmental data collected by inspection robots can be aggregated to the ground centralized control platform for trend analysis, fault tracing and equipment health assessment. With the in-depth application of 5G, industrial Internet and artificial intelligence technology, belt inspection robots are evolving from "mobile cameras" to comprehensive sensing terminals with edge computing and intelligent decision-making capabilities, providing important support for the construction of smart mines.