The railway transportation industry plays a vital role in national transportation infrastructure, where equipment operational safety is of utmost importance. During prolonged high-speed operation, critical components such as axles, bogies, and underframes are prone to fatigue cracks, uneven lubrication, and metal corrosion. With high-resolution imaging, deep insertion capability, small-diameter probes, and flexible articulation, JOINWE industrial videoscopes are widely applied in daily maintenance and specialized inspection tasks in the railway sector.

Application Cases:

1. Internal Fatigue Crack Inspection of Wheel Axles

Train axles under high loads are prone to developing microcracks. By inspecting the central bore of the axle with a videoscope, hidden cracks can be detected early, preventing axle breakage and ensuring operational safety.

2. Rust-Proof Oil Coverage Check in Underframe Components

For structural components like freight train underframes—up to 3 meters wide—videoscopes are used to verify the distribution of anti-rust oil. Insufficient oil leads to corrosion, while excess oil may leak from holes and cause material waste. Videoscopes enable targeted observation and visual documentation inside complex internal structures.

3. Assistance in Various Levels of Train Maintenance

(1) Routine Inspections (Daily Checks): Videoscopes help inspect key components such as wheelsets, bogies, batteries, and springs for wear, cracks, and corrosion. They are especially useful for capturing images in hidden or hard-to-reach areas, enhancing maintenance efficiency.

(2) Monthly Checks (Single/Double Month): Support the visual inspection of major parts to assess their technical condition.

(3) Scheduled Overhaul (Intermediate Repairs): Enable preventive inspections of suspect areas to avoid further deterioration.

(4) Heavy Maintenance (Bogies Lifted): After disassembly and lifting of the train, videoscopes are used to inspect internal areas of drive systems, running gear, traction motors, and other large components.

(5) Depot Overhaul (Comprehensive Repairs): During full-scale restorative maintenance, videoscopes help assess the internal condition of critical parts to ensure full recovery of original function.