The working principle of a
crane's brake is to generate a braking torque through friction, converting kinetic energy into thermal energy, thereby stopping the equipment. Its performance directly determines the safety of crane operation.
In general, a brake needs to meet three key indicators:
- Response speed: Electromagnetic brakes can complete braking within 0.5 seconds, and the braking torque must reach more than 1.5 times the rated load torque.
- Heat management: Since its working principle relies on friction, heat management is extremely important. Typically, designs include ventilation grooves, the use of temperature-resistant friction materials, and intelligent temperature control to prevent a decrease in friction coefficient due to high temperatures, which would affect braking performance.
- Redundancy design: In high-risk scenarios, a dual braking system is usually required. If the main brake fails, the backup system intervenes within 0.3 seconds, reducing the failure probability to less than 0.001 times per hour.
Brakes are generally used in the following scenarios:
- Metallurgical industry
- Nuclear power construction
- Container terminals
- Bulk cargo loading and unloading
- Mining operations
- Chemical production
- Excessive braking distance
Common causes: Aging of friction materials, leakage in the hydraulic system
Solutions: Replace the lining, conduct pressure testing on the hydraulic circuit
- Excessive braking vibration
Common causes: Brake disc deflection, uneven spring stiffness
Solutions: Perform dynamic balance correction, replace the spring set
Common causes: Overheating of the electromagnetic coil, valve core jamming
Solutions: Optimize heat dissipation design, clean the hydraulic valve
Common causes: Fatigue fracture of the spring, malfunction of the manual release device
Solutions: Conduct regular flaw detection, perform functional tests on the manual system
If you need to select a suitable brake, please feel free to contact us. We will provide you with professional technical guidance and preferential quotations as soon as possible. Your consultation is warmly welcome.
