The following precautions must be strictly followed during the installation, commissioning, use, and maintenance of the variable-frequency speed-regulating bridge crane, otherwise personal injury and equipment damage will occur.After the control system is connected to the power supply, the commissioning and maintenance personnel must be particularly careful when working. After the power supply is disconnected, the inverter's charging indicator must be off before touching the components inside the cabinet to perform necessary operations.It is absolutely forbidden to connect the input power ...
The principle of the gantry crane track is as follows:1. Should meet the stability requirements of the crane frame run along the direction of the crane track;2. The cargo dimensions shall pass through the steel frame of the gantry crane;3. Note that the wheelbase is proportional to the gantry crane span, and the wheelbase =(1/4-1/6) is generally taken.Single girder gantry crane
1. The order of the crane machines load test should be noted, first the no-load test, then the rated load test, then the static load test (1.25 times rated load), and finally the dynamic load test (1.1 times rated load). After the previous test is passed, the next test can be carried out;2. The weight of the test load must be accurate;3. The crane machine load should be regular, the walking ground of the gantry crane should be solid and flat;4. Must pay attention to the safety of the work site, the testing personnel should be away from the test crane machine. Unrelated people around should avo ...
The new gantry crane generally has a running-in period of about 60 hours, which is stipulated according to the technical characteristics of the initial use of the crane. When the new gantry crane is not used according to the instructions during the running-in period, it will cause frequent machine failures, affecting normal use and shortening the service life of the crane. Therefore, the use and maintenance of the gantry crane's running-in period should be given full attention.1. Poor lubricationSince the matching clearance of the newly assembled components is small, it is difficult to ens ...
1. Before gantry crane using, check the track for any sundries, and pay attention to the presence or absence of wires and other obstacles affecting the work;2. Before each operation, carry out test hanging: lift the heavy object from the ground for about 200mm to test if the brake is reliable, can be lifted after confirming safety;3. When working, the wire rope should be lifted vertically. Otherwise, the lifted objected will swing, collide with other objects, even cause the crane rollover accident;4. The gantry crane should not be overloaded; when working under heavy load, it should be run slo ...
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