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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Mining accessories

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Hebi Shuangmin Mining Machinery

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. The system offers two types of dynamic braking force monitoring: real-time monitoring and periodic monitoring. It 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 inspection and maintenance of the hoist’s braking system.

2. The high-pressure seal of the cylinder assembly has only one sealing stage, 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.

The rope-adjusting clutch adopts a new type of radial tooth-block rope-adjusting clutch, which features quick operation, precise alignment, and flexible handling during rope adjustment.

The main spindle is made of high-quality carbon steel, which has undergone forging, normalizing treatment, and precision machining, followed by non-destructive testing. Between the two shafts, any cross-section subjected to bending moments features a keyless connection, thereby reducing stress concentration, enhancing strength, and ensuring greater safety and reliability.

Planetary reducer—its features include: small size, light weight, low noise, high efficiency, smooth transmission, and high load-carrying capacity.