Speed ​​differential fall arrester installation steps and applications

After the fall arrester is installed according to the instructions, first of all,We first cut off the main power, turn the electrical box switch to the "installation and maintenance" position, install the test cable, and connect the cable to the terminal block marked "fall test" in the electric box of the cage, and fix the test cable at Near the electrical box of the cage, put the torsion disk and cable to the ground station through the door or other appropriate holes. When everything is installed, we can test it. Load the cage to the rated load, close the main switch, press Press the “Rise” button on the test box on the twister box to drive the cage up to a height of 10 meters above the ground.

Press the button with the “falling test” mark, don’t let go, when the electromagnetic brake is released, the cage will fall down. When the falling speed reaches the calibration speed of the anti-falling safety device, the anti-falling safety device will act quickly and the cage will be opened. Brake on the rail frame.

Under normal circumstances, the braking distance of the cage should be 0.3-1.2m (excluding the distance the cage is free to slide) from the start of the safety device to the stop of the cage. The braking distance is calculated by the following method: S=L·π·m·Z/2 where: S: braking distance mm L: indicating pin end displacement mm m: gear modulus Z: number of gear teeth.

In addition, the measured L value is greater than 8mm, for the sake of operator safety, or to replace, there is one more point to remind everyone that this test is to be carried out every three months.

The industrial fall arrester can quickly lock and lock the falling object within a limited distance, which is suitable for cargo lifting, protecting the life safety of the ground operator and the damage of the object being lifted. It is different from the small fall arrester used in climbing. Be sure to pay attention when purchasing, otherwise it is a safety hazard.

Industrial fall arrester

When the crane is hoisted to prevent the safety of the suspended workpiece from accidental fall, the industrial fall arrester can effectively protect the life safety of the ground operator and the damage of the workpiece being lifted, and is applied to metallurgical automobile manufacturing, petrochemical engineering, engineering construction, electric power. , high-altitude workplaces such as ships, communications, pharmaceuticals, and bridges.