Disc brake

The brake is used on mine hoists for both working and emergency braking, and its actuation and control are accomplished in conjunction with a separate hydraulic station.

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Hebi Shuangmin Mining Machinery

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Technical Parameters

Disc Brake Technical Parameters
Disc Brake Technical Parameters
Name Model	TP-6.3T	TP-4.0T
Maximum positive pressure	63KN	40KN
Design friction coefficient	U=0.4	U=0.4
Maximum brake shoe specific pressure	q2 = 80 N/cm ²	q2 = 80 N/cm ²
Zawa allows the maximum temperature.	T = 210℃	T = 210℃
Piston effective area	A = 138.1 cm ²	A = 113 cm ²
Maximum working pressure of the oil cylinder	P=6.5	P=6.5

Performance and Applications

The brake is used on mine hoists as both a service brake and an emergency brake, and its actuation and control are accomplished in conjunction with a separate hydraulic station. As the ultimate safeguard for all safety protections of the hoist, the brake occupies the most critical position within the hoist system. The second-generation brake boasts significantly enhanced advantages over the first-generation brake in terms of its structural design:

1. This series of brakes can be equipped with built-in sensors to enable precise monitoring of braking force at specific points during the braking process. It offers two types of dynamic braking force monitoring: continuous real-time monitoring and periodic monitoring. The system also ensures that the hoist meets the “Coal Mine Safety Regulations” requirement of providing three times the static torque. This provides accurate and reliable real-time data for safe maintenance and inspection of the hoist’s braking system.

2. The hydraulic cylinder assembly features a single-stage high-pressure seal, offering superior sealing performance and fewer leakage points, thereby eliminating oil leakage issues common in older designs.

3. Due to the fewer sealing components, the internal moving mechanisms experience less resistance caused by sealing.

4. The piston is freely positioned and floats within the cylinder, eliminating the risk of jamming between the cylinder and the piston—a common issue in older designs that could lead to loss of braking power.

5. The brake’s opening force is transmitted in parallel by a set of multiple bolts, ensuring uniform and stable internal force transmission.

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