Working principle of the retractable fall arrester
Most people should be familiar with the retractable fall arrester, which is mainly used for high altitude operation. Operators wear the retractable fall arrester. Once they accidentally slip during high altitude operation, the retractable fall arrester can instantly complete self-locking, so as to save people's lives.
The name of fall arrester is not the same in each place. In addition to fall preventer, there are several other names such as: speed differential automatic control device, speed differential device and so on. The name of the anti-fall device is relatively easy to be understood by the literal, in addition to the anti-fall device, the name of the speed differential device is also quite common, so where does the name of the speed differential device come from?
Before understanding the fall arrester, we should first have a simple understanding of the working principle of the speed differential device. The speed differential device will not be locked at the normal operating speed. When it is suddenly accelerated, the inner tower wheel speeds up the rotation speed at the same time, and the pawl on both sides is thrown out under the action of centrifugal force. And under the action of human load, the ratchet and pawl are locked to prevent falling.
Speed difference! Speed difference! As the name implies, it means that the change in speed caused by a sudden fall is used to "activate" the self-locking system by centrifugal force. The same is true of seat belts in cars. So you have a pretty clear idea of the differential, and that's where the name of the differential comes from.
TOHO have different length webbing and wire rope fall arrester to meet your different demand. Besides, we have both double leg and single leg fall arrester for webbing fall arrester.
