Rail transit gearboxes, transmission systems, braking systems, onboard pipelines, and other specialized equipment are the core safeguards for train safe operation. Due to frequent starts and stops, high-load vibrations, and prolonged operation, hidden defects such as wear, residue buildup, blockages, and seal aging often occur within the equipment. With most core structures being enclosed cavities, internal hazards cannot be visually inspected. Traditional disassembly inspections are time-consuming and labor-intensive, disrupting line operations, while routine visual inspections leave significant blind spots, failing to meet modern rail transit requirements for efficient and safe maintenance. Zhongke Intelligent (Wuxi) Technology Co., Ltd. specializes in the independent R&D of industrial endoscopes and scenario-specific solution implementation. Leveraging its self-developed Kunscope brand non-destructive testing equipment, the company provides customized maintenance solutions for rail transit specialized equipment, becoming a core preferred device for preventive maintenance in the industry, thanks to its key advantages of non-destructive, visual, and precise inspection.

 

1. Core Pain Points of Traditional Operations
The internal hidden dangers of precision special equipment for rail transit are strong and can only be identified through regular dismantling or external inspections. The dismantling and maintenance period is long and the cost is high. Disassembly and assembly can easily cause secondary problems such as assembly deviation and sealing failure, and occupy operational capacity; External visual inspection cannot detect internal defects in the cavity and pipelines, and can only passively repair faults, which can easily cause safety risks such as train delays and abnormal braking. The accuracy and timeliness of operation and maintenance are poor.
2.  Core advantages of industrial endoscope testing
In response to the strict operational requirements of night time maintenance, non-stop operation, and high precision of rail transit, Zhongke Intelligent (Wuxi) Rail Transit Special Industrial Endoscope has strong adaptability and outstanding core technological advantages: equipped with self-developed ultra long bending angle structure and high-definition optical imaging patented technology, it can achieve non-destructive testing without disassembly. Through the reserved small holes in the equipment, it can penetrate into various closed and narrow cavities and pipelines without equipment damage or secondary failures during disassembly and assembly; The flexible and controllable probe supports 360 ° full range exploration without blind spots, completely solving the problem of blind spots in traditional detection; The whole machine is lightweight and portable, with efficient operation, suitable for on-site operations in maintenance warehouses. It can complete multi-point inspections of the entire vehicle during the night operation window period without affecting the normal operation of daytime lines; Supporting real-time shooting, recording, and intelligent archiving of high-definition images, the detection data can be traced and retained, fully meeting the standardized requirements for annual inspection, fault tracing, and compliance supervision of special equipment in rail transit.
3. Core application scenarios
1. Inspection of gearbox and transmission system
Gearboxes and transmission shafts are the core power special equipment of trains. Long term high load operation is prone to tooth surface peeling, pitting, and cracking. At the same time, lubricating oil carbonization and metal debris accumulation can exacerbate bearing wear and cause transmission failures. Zhongke Intelligent (Wuxi) rail transit dedicated endoscope can accurately adapt to the narrow maintenance conditions of gearboxes. The probe can penetrate deep into the box to display the wear status of gears and bearings, as well as the accumulation of grease and impurities in high definition. Operation and maintenance personnel can accurately determine the degree of equipment wear based on real visual images, scientifically formulate oil change, maintenance and accessory replacement plans, eliminate blind maintenance and excessive maintenance, effectively ensure the smooth and reliable operation of the train transmission system, and extend the service life of core components.
2. Inspection of the closed structure of the braking system
The closed structure of brake systems such as brake cylinders and precision valve groups is prone to hidden defects such as valve core sticking, chamber volume scaling, seal aging, and pipeline blockage due to repeated hydraulic and pneumatic impacts over a long period of time, directly threatening the safety of train braking. Zhongke Intelligence (Wuxi) has customized a dedicated testing solution for precision braking equipment in rail transit. The equipment can directly reach the brake chamber and the interior of the precision valve group to accurately check for subtle wear, scale, seal failure, and blockage hazards. It comprehensively verifies the integrity of the braking structure, avoids major safety risks such as slow braking response, insufficient braking force, and braking failure in advance, and strengthens the core defense line of rail transit driving safety.
3. Comprehensive inspection of vehicle piping system
The onboard pipeline structure of the train's hydraulic, heat dissipation, ventilation, and gas supply systems is complex and has narrow bends. Long term operation is prone to problems such as accumulation of dirt and blockage, aging of the inner wall, and micro leakage, which can lead to poor equipment heat dissipation, unstable hydraulic gas supply, and other operational failures. Zhongke Intelligent (Wuxi) flexible long-distance endoscope can easily shuttle inside complex pipelines, comprehensively investigate hidden dangers such as pipeline blockage, inner wall rust, aging damage, micro leakage, etc., accurately locate the fault point, assist operation and maintenance personnel in handling risks in advance, and comprehensively ensure the stable and continuous operation of various onboard systems of the train.

 

4.  Application Value and Development Trends
Relying on the advantages of independent research and development and full chain technology iteration, Zhongke Intelligent (Wuxi) Industrial Endoscope helps the operation and maintenance of rail transit completely break away from the traditional extensive mode of "fault repair and regular dismantling", and builds a precise operation and maintenance system that is preventive, data-driven, and non-destructive. The equipment can effectively eliminate the blind spots in the internal detection of special equipment, reduce the safety risks of rail transit operation from the source, significantly shorten the maintenance period, reduce ineffective operation and maintenance costs, avoid economic losses caused by train shutdown and delay, and fully comply with the compliance operation and maintenance standards of rail transit special equipment. Zhongke Intelligence continues to integrate cutting-edge technologies such as AI defect recognition, 3D precise measurement, and intelligent data archiving into its products, continuously improving the intelligence and refinement level of rail transit special equipment operation and maintenance. With mature industry solutions and service experience from thousands of enterprises, it provides solid technical and equipment support for the long-term safe and efficient operation of domestic rail transit.