Fault Resolution Case: Leveraging the Zhongyun Platform to Precisely Identify and Resolve Belt Aging Issues

In food manufacturing facilities, workshop air conditioning is a critical auxiliary system for maintaining optimal temperature and humidity conditions in fermentation environments. Recently, at a well-known food‑fermentation company, the air conditioner serving the rice‑wine‑starter production workshop experienced belt aging and slackening, causing vibration levels to far exceed safety thresholds. Leveraging its intelligent operations‑and‑maintenance platform, Zhongyun Technology employed trend monitoring and feature analysis to accurately identify the risk of belt loosening and wear, guiding the enterprise through timely belt replacement. This proactive approach effectively prevented unexpected equipment failure and subsequent production disruptions, ensuring the reliable and stable operation of the workshop’s environmental control systems.

I. Vibration continues to worsen; the platform is monitoring the situation throughout.

In early May 2026, the platform detected that the vertical vibration velocity at the drive end of the air-conditioning motor remained persistently high, with peak values in the horizontal direction reaching 28.118 mm/s—far exceeding the safety threshold—triggering a system alert and simultaneously issuing a diagnostic conclusion of “belt wear and looseness.” The system automatically dispatched equipment information, sensor locations,超标数据, and relevant time stamps, ensuring that potential hazards remain under continuous monitoring.

II. Diagnosis: Belt aging and loosening

Based on the equipment’s rotational speed and vibration characteristics, the diagnostic team determined that there is a loosening fault at both the motor and the fan drive ends, with belt slackness and wear being the most likely causes. The platform’s intelligent diagnostic findings are highly consistent with the manual diagnosis, and it is recommended that the enterprise prioritize inspecting belt tension and wear conditions, as well as verifying the fastening integrity of the motor base.

3. On-site belt replacement resulted in a rapid reduction in vibration.

Based on the platform’s recommendations, the enterprise scheduled a shutdown for inspection on May 16 and identified that one of the three belts was significantly aged, which closely matched the platform’s diagnostic findings. Maintenance personnel replaced the aged belt. Following the equipment restart, platform monitoring showed a marked reduction in the root-mean-square vibration velocity, stabilizing within the normal range of 5–6 mm/s, and the equipment resumed stable operation.

IV. Core Value: Ensuring that “small belts” no longer cause major problems.

The successful resolution of this air-conditioning belt‑aging fault underscores the unique value of the Zhongyun platform:

1. Trend Detection: From gradual degradation to sustained high levels, the platform provides end-to-end monitoring and issues multiple alerts well before vibration exceeds critical thresholds.
2. Precise positioning: Accurately detects belt slack and wear, preventing unnecessary replacement of the entire machine and ensuring efficient, cost-effective maintenance.
3. Rapid closed-loop management: From alarm detection and diagnosis to component replacement and verification, the process is efficiently闭环ed, ensuring a stable production environment in the workshop.

Zhongyun Technology will continue to iteratively advance its intelligent diagnostics technology, providing end-to-end smart operations and maintenance solutions—featuring “precise early warning, efficient response, and robust reliability”—for environmentally sensitive industries such as food and pharmaceuticals, thereby helping enterprises fortify their equipment‑safety defenses.