cable overhead cranes
The use of cable for overhead cranes
Four-beam Casting Overhead Crane
1, the use of hanging cable car (or cable car guide), should prevent the cable in motion is wear and excessive bending, the cable diameter is less than 8mm, the diameter of the curvature cable suspension plate bending should be at least 6.3 times of the cable diameter; the cable diameter is greater than 8mm, should be at least 8 times the outer diameter of the cable diameter; for more than 12.5mm, should be at least 10 times the diameter; for flat cable, cable diameter is equivalent to the thickness of round cables.
Cable arrangement should ensure that the cable length is equal, the pressure plate crimp firmly, the same layer of cable diameter as close as possible to avoid a root or a few cables too much force. Suspension cable trolley should be set between each other to pull the wire rope, the operation, when the adjacent two hanging cable trolley spacing between the cable so that the angle between the 120 °, the traction wire rope should be completely straightened force.
2, the use of cable reel power supply should be prevented during the movement of the cable was worn, the diameter of not more than 21.5mm cable, cable reel diameter
At least 10 times the cable diameter; for cables with an outside diameter greater than 21.5 mm, the cable roll diameter should be at least 12.5 times the cable diameter.
The cable reel shall be capable of automatically winding the cable. The drive torque of the cable reel shall be not less than the maximum winding torque required for the winding cable. In the process of cable laying, the traction force acting on the cable conductor should be as small as possible. For cables with no reinforcement core, the maximum allowable tension on the copper conductor cross section is 20N / mm2. For cable winding speed or cable weight Heavier, should be added to withstand the required traction to strengthen the wire rope for the core.