10-20M Fall Arrest Wire Retractable Safety Lifeline with EN 360 Standard

Keyword:Fall Arresters   Time:2019-11-8 16:54:56

How does the differential crash fall  arresters come into being

 The differential crash fall arresters, also known as the differential automatic controller, can quickly brake and lock the falling object within a limited distance, and is suitable for protecting the life and safety of operators.            

 This differential crash fall arresters is an upgraded version of the existing differential crash fall arresters, which can effectively avoid accidental locking or failure of the lock function of the differential automatic controller. This excellent performance is achieved by the following technical solutions:            

 The fall arresters is mainly composed of gear blocks, small springs, upper and lower shells, suspension rings and jackets, pawls, guide barrels, winding box, runner, central shaft and recycling winding.            

 When the braking force of the differential controller is very small after the lock is stopped, the differential controller will stop immediately. When the braking force is very large, the cable drives the hub to continue to rotate, and the  ratchet disc has been locked with the pawl, so that the hub and the ratchet  disc will move relatively. Friction will occur during the relative movement of the friction disc, and its friction counteracts the falling braking force, thus realizing the buffering function.          

The self-locking device is suitable for but not limited to solving the anti-falling problem of chemical enterprises and construction industry when climbing in high altitude, deep wells or ladders, and can effectively reduce the harm of falling in high altitude to human body.            

 In the Family of Fall arresters, the speed difference Fall arrester is a typical wire rope Fall arresters. According to the different falling distance and working system, it can be divided into industrial heavy fall arresters and  mine fall arresters.           
 Speed difference crash fall arrester was first used in high-rise building exterior wall decoration and glass cleaning. Its main function is to prevent falling at high altitude, which is used to catch workers who accidentally lose weight and fall at high altitude.           

 At present, the function of the more practical speed difference fall arresters is mainly composed of shell, drum wheel, steel wire rope and spring assembly, which is used as fall protection device in Metallurgical Automobile manufacturing, petrochemical industry, engineering construction and other industries.            

 Besides practicability, compact structure, reliable performance and good safety should be the original intention of our design and development of fall arresters. Therefore, in the future research and development of fall arresters, we should design and develop fall arresters in this way:            

 Structural Composition: The shell of the speed difference automatic controller has a drum wheel and a spring. One end of the wire rope is connected with the drum wheel, and is wound around the drum groove, the other end is connected with the external ring hook.           

 Locking function: when the outer end of the wire rope is pulled down at a uniform speed and slowly, the drum wheel rotates and the wire rope pulls out; when the outer end  of the wire rope has no pulling force, the drum wheel rotates under the action of the spring, and the wire rope automatically turns around the drum wheel. When the outer end of the wire rope accelerates instantaneously, it drives the drum wheel to rotate rapidly and centrifugally. Under the action, the pawls on the drum wheel are thrown out and touch the teeth on the ratchet wheel. When the impact force reaches a certain value, the pawl is fixed or the ratchet wheel begins to rotate. Because of the friction plate installed, the ratchet wheel is forced to slow down slowly until the rotation stops. The wire rope can not be pulled out, thus realizing the locking function.            

 Reset function: When the load of the outer end is relieved, under the action of the stretch spring, the double ratchet claws are retracted, separated from the teeth on the ratchet wheel, and resumed normal work.

China Supplier of Fall Arresters1.jpg

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