The invention discloses a fault detecting method for a braking device. The fault detecting method is used for comprehensively detecting and diagnosing the action matching reliability of all sectors on a brake shoe and a brake drum. The fault detecting method comprises the steps of sequentially carrying out static detection and dynamic detection on the braking device; during static detection, applying a torque current with a specific direction to a traction machine in a brake closing state, and observing the slip condition of a traction wheel; during dynamic detection, setting the switching sequence of the sectors through a sector management unit, releasing the brake, and driving the traction machine to rotate; and when the traction machine rotates for a certain mechanical angle, stopping the brake, meanwhile, cutting off a power source of the traction machine, and observing the braking- stopping distance of the traction machine from rotating to stopping. The fault condition of the braking device is diagnosed through judging static and dynamic detection results on all the sectors. The fault detecting method is high in diagnosis coverage rate and capable of checking slight abnormality of the braking device, achieving the aim of nipping in blossom and effectively avoiding accidents caused by failure of the braking device.
Fault detecting method for braking device
2015-12-09
Patent
Elektronische Ressource
Englisch
Loader braking fault detection and emergency braking system and control method
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