Abstract
As the final executor of the braking system of coal mine hoists, the disc brake directly affects the safety and reliability of mine hoists. Aimed to the problem of failure of hoist disc brake, acco...
Highlights
The disc brake of mine hoist is the ultimate executor of safe parking of mine hoist
The brake system is composed of hydraulic station and disc brake, which is the final part of the braking system to complete the braking task
In order to make the brake disc to not produce additional deformation and the spindle to not bear additional axial force, the disc brakes are used in pairs and each pair is installed on both sides of the brake disc
Summary
The disc brake of mine hoist is the ultimate executor of safe parking of mine hoist. Its safe and reliable work can ensure the safe operation of mine hoist. In order to improve the reliability of disc brake of mine hoist, some scholars have studied the structure design of disc brake as a breakthrough point. DK Zhang et al.[11] studied and designed a disc brake for hoist, which can diagnose the performance failure caused by brake shoe wear, disc spring fatigue fracture, and piston jamming in time. Under the condition that the disc spring force is normal, there is still a lack of brake force which results in frequent occurrence of brake accidents.[17,18] The existing brake technology and product level cannot meet the requirement in terms of structure principle and performance index.[19,20,21] In view of the present situation, this article presents a disc brake with diagnosis of brake failure and real-time monitoring of positive brake pressure. Effective and accurate monitoring of positive brake pressure and fault prediction is of great significance to improve the safety and reliability of large mining equipment
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