Small hoist equipment lifting objects, only the start of hoist ropes from the object raised to a predetermined height of parking. If you need to move laterally to start driving traction rope winches, two lift hoist in a winch Matsunawa, another tight rope hoist
Small crane lifting objects, only the start of hoist ropes from the object raised to a predetermined height of parking. If you need to move laterally to start driving traction rope winches, two road traction hoist in a winch Matsunawa, another tight rope hoist, pull to avoid the phenomenon of produce, attention must be in accordance with the "first release after the closing, extra undercharged "principle operation. In order to maintain the original height of hanging objects, but also to relax or tighten the lifting control leash. Trolley and heavy lifting operations do not simultaneously. When the object is moved to the required position, while all reels stop, and then control the landing lifting traction rope, so that everything is in place.
Flat cable Hoist equipment Precautions
① parts must be checked before use for wear, rotation is flexible, lubrication is good, and to go through the overload can be used after passing the test.
② Use must be checked before carrying Wire rope specifications, wheel bearing and wheel diameter tank meets the requirements, bearing rope must often coated with grease and graphite powder mixture, in order to reduce friction and prolong life.
③ allow simultaneous lifting heavy objects and horizontal movement.
Small crane flat cable crane load-bearing cable tension calculation
Weight of the load and driving mechanism of the weight concentrated load, while the rope line weight is evenly distributed loads. Assuming the weight of the load and driving are concentrated in the mid-point of load cable, its rope tension can be calculated.
T = (W + Q) L/4f + G L/8f
Where W - lifting load, kN
Q - vehicle weight, kN
G - the total weight of the rope, kN
f - carrying cable deflection, m
L - span, m