Explosion-proof electric hoist static load test

Explosion-proof electric hoist static load test shall be carried out according to the following procedure and requirements, so as to guarantee the accuracy of the product is safe to use, we can offer the following points for your professional XianRong:
A. start lifting mechanism first, chainb lock on the empty load lifting manipulation, and to make the car run back and forth on the whole trip, the no-load test run shall not be less than in 3 times, should be no abnormal phenomenon.
B. to park your car in the rail across, gradually add load lifting test run, until to the rated load, make the car full stroke in orbit. Run back and forth several times, each department should be no abnormal phenomenon, should be no abnormal phenomenon after unload orbit.
C. to park your car in the rail across, no impact to 1 rated lifting weight lifting. 25 times load, height is 100 ~ 200 mm hoist equipment the ground, hanging stay time should be not less than 10 min, and should be no instability phenomenon, unload and then turned on the car across the side or foot, check the electric hoist metal structure and should be no crack, which leads to welding crack, peeling paint and other safety defects such as damage or loose.
D. the third test shall not exceed 3 times, and the third time should be no permanent deformation, determination of main girder camber, actually it should be more than 0.75/1000 mm.
E. check the electric hoist the static stiffness of the track, the car should be quick to track across, hoisting load rated lifting weight, 200 mm from the ground, after being static electric hoist and load, measure arch on its value, this value with the fourth result is the difference between the static stiffness on electric hoist, electric hoist, static stiffness, should be within the scope of the main girder span central S / 10 measurement. Electric hoist the static stiffness of the promised value 1/800 s (mm).
F. the dynamic load test run
(1) the dynamic load test run should be performed in all the long trip, rated lifting weight lifting weight should be 1. 1 times, accumulative total starting and running time of electric hoist should not be less than 1 h, agencies should be agile, stable and reliable, safety protection, interlock and limit switch should be correct and reliable.
(2) the electric hoist test run after passing the transfer formalities.