Bridge crane inspection and maintenance system - inspection and lubrication

3 half Inspection and Maintenance
    Maintenance and inspection once every six months, including the month in addition to checking the content outside there should be:
    1) Check that all the gear reducer and wear,overhead bridge crane pitting damage to the tooth surface should not exceed 30% of the engagement surface and a depth of not more than 10% of the original thickness of the teeth (tooth thickness fixed chord); wear of the tooth thickness the percentage of the original tooth thickness does not exceed 15% to 25%; Check bearing condition; replace oil.
    2) check whether large, small wheel condition, the wheel bearings lubricated track to eliminate the phenomenon of eating.
    3) Check the main girder, end beam welds have to open the main welding, corrosion phenomena, rust should not exceed 10% of the original thickness of the principal stress components whether fatigue cracks; various rails, brackets are intact; inspection girder, end beam and tighten the bolt again.
    4) Check the main beam deformation. Check the trolley track situation. Main beam interference under no load should not exceed the span 1/2000; girders bent inwards next level measured length shall not exceed 1/1500; trolley rail track should not produce the phenomenon,sino hoist rail top face and flank wear ( sided) volume must not exceed 3mm.
    5) Check the reel case, reel wall wear should not exceed 20% of the original wall, rope groove hump does not strain the tip.
    6) Tighten all bolts on the crane and fastening bolts.
    4 crane lubrication
    Lubrication is to ensure the normal operation of the machine, to extend the life of parts, improve efficiency and safety of the important measures. Maintenance personnel should fully understand the importance of lubrication equipment, always check the lubrication of all moving points, and regularly add oil to each lubrication points (grease).
    4.1 Dan river bridge machine main power plant lubrication
    ① bridge machine winch; ② kinds of bearings; ③ each gear couplings; ④ reducer; ⑤ rope; ⑥ hinge point on the brake.
    4.2 Lubrication Precautions
    1) maintain the lubricant (grease) clean;
    2) different grades of lubricating oil (fat) should not be mixed;
    3) selection of a suitable lubricant (grease) at the stipulated time for lubrication;
    4) using pressure greasing France (grease gun or pump, screw-type oil cup) add grease, so you can put grease pushed the friction surface to prevent his hand when not enter the friction surface;
    5) wet areas should not use sodium based grease, because of its hydrophilic, easy to lapse;
    6) The agency did not oiling point rotating parts, should be regularly rotated with dilute oiler in the gap,overhead gantry crane in order to reduce mechanical friction and prevent corrosion.