Jib crane hoist use and maintenance regulations
column jib crane is light intensity, the crane is composed of column, rotary arm rotary drive and electric hoist planning and manufacturing, the column firmly below the concrete foundation, the cycloid reducer to drive the cantilever suspension, electric hoist Beam I-beam to be a straight line, and lifting the weight of the items. Crane arm hollow steel beam layout, light weight, span a large, heavy weight, economical and durable.
Suspension hoist electric hoist use and maintenance requirements
①, the new installation or after the demolition seized electric hoist, first of all should be empty truck trial operation several times. But not installed before, should not turn on the test;
② Before normal use, a static load test with rated load of 125% and lift of about 100 mm from the ground for 10 minutes should be carried out to check whether it is normal.
③, dynamic load test is based on the rated load weight, for repeated movements and left and right movement test, after testing the mechanical transmission parts, electrical parts and connections are normal and reliable;
④ In use, it is absolutely forbidden to use it in an impermissible environment and exceeding the rated load and the rated closing times per hour (120 times);
⑤ During installation and maintenance, the limit device must be strictly checked for flexibility. When the hook is raised to the upper limit position, the distance between the hook shell and the reel shell must be more than 50mm (10t, 16t, 20t must be greater than 120mm). When the hook down to the lower limit position, should ensure that the safety rope coil reel, effective safety circle must be more than 2 laps;
⑥, not allowed to press the two at the same time so that the electric hoist in the opposite direction of the flashlight movement button;
⑦, the work must be completed after the power of the total brake opened, cut off the power;
⑧, electric hoist should be manipulated by hand, the operator should fully grasp the safety rules, is not allowed to tilt the crane;
⑨, in the use of specialized personnel must be regularly checked electric hoist and found that failure to take timely measures, and carefully recorded.
More mobile mobile crane boom, a wide range of compliance, is an efficient and efficient automatic production line must be an independent emergency lifting configuration, with it to ensure that the production line unimpeded flow.