Construction safety net /fall arrest safety net/safety net Type U

Keyword:Fall Arresters   Time:2019-11-8 17:06:09

How to better maintain the high-altitude fall arresters?

 How to better maintain the high-altitude crash preventer? Maintenance of the  machine can be better operation, but also can be used for a longer time, the  author explains how to better maintain the sample of high-altitude fall arresters:           
 RAMHOIST fall arrester is an important safety device in high-altitude construction. It can limit the over-speed operation of suspension cage and effectively prevent the occurrence of suspension cage falling accidents. When the suspension cage stalls and falls due to the fault, the fall arrester starts to move and the braking moment increases gradually. The suspension cage is braked smoothly within a certain distance, thus ensuring the safety of the crew and the intact of the equipment.       

 Install the shoulder of the anti-falling safety device into the matching hole corresponding to the bottom plate, pay attention to the downward direction of the safety device junction box, screw in the high-strength bolt of the corresponding specifications in the hole 4-D6, open the junction box cover, connect the normal closed contact points of the safety device into the drop control loop of the high-altitude fall arresters, and then install the junction  box.           

 Attention should be paid to the installation of fall arresters:            

 Installation bolt performance is not lower than grade, installation bolt should be evenly tightened and safety device bolt M14, the other models of safety device bolt used for safety device installation should observe the meshing of gear and rack, its clearance should be ensured within the scope, visual inspection of gear end face should be able to find the existence of clearance on the tooth side. Hand rotation safety gear should be able to feel the small swing of the gear, RAMHOIST anti-drop device is best to use ruler to measure the backlash.            

 The normal closed contacts of the limit switch in the crash preventer should be connected to the descent control circuit of the high-altitude crash preventer, which can not be omitted.           

 The micro switch on the fall arresters must be connected to the control circuit when the construction safety fall arresters enters normal operation.           

 Every time the construction safety fall preventer enters the assembly or disassembly work, the rated load drop test must be carried out, and the test results should be recorded in the construction high-altitude fall preventer files.            

 The anti-falling system generally includes the following components: seat belt, safety rope, self-locking device, steel hook, speed difference fall arresters, buffer belt, etc. To sum up, we can get three elements of anti-falling system: full-body seat belt, connector and hanging point. Three elements are indispensable. Among them, the connector is used to connect the seat belt and the hanging point, including safety rope, safety rope with buffer belt, speed differential fall arresters and other devices. The hanging point is the force of the whole anti-falling system. It is suggested that the hanging point should be determined by professionals when choosing the hanging point. It should be noted that the static tension of the connector and the hanging point should be greater than 15KN.

 As we all know, as the connector of the anti-falling system at high altitude, the differential fall arresters needs high hanging and low use. Why? Maybe everyone knows one thing and the other. The author of the crash preventer manufacturer here tells you the reason why the crash preventer with speed difference is high and low.            

 Here we refer to a security terminology - falling factor. This term is mainly used  in the deployment of fall arresters in the application of how to determine the hanging point. Fall factor = fall height / rope length. There is a critical value and two different intervals: critical value: 1; two intervals: [0, 1] and  degree of freedom < 0.6; (1) and the degree of freedom is larger. Through the fall factor, we can determine which types of operation belong to high altitude operation, and the reason why the whole anti-falling system needs high hanging and low use.

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