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Overhead crane inspection standard

As a large-scale special equipment, overhead cranes should do their daily inspection and maintenance work during use. The editor has compiled a bridge crane inspection table for your reference. The bridge crane inspection standards are as follows:

Check standard
Attached Table 1: Equipment Name: Bridge Crane H: Hours S: Class D: Day W: Week M: Month Y: Year
Item number Check site project content Check type Check standard Check the division of labor cycle device status Check method
Qualitative standards Lowest value Highest value unit Visually Ear listen Nose smell Hand touch tool Simple instrument precision instrument
1 Drive part モーター Operating situation Qualitative No abnormal sound maintain 1S Boot up √
Temperature rise Quantitative 0 80 °C maintain 1S Downtime √ √
Ground wire Qualitative Complete, intact, fastened maintain 1S Boot up √ √
Junction Box Qualitative Fastened without damage maintain 1S Downtime √ √
Anchor bolt Qualitative Tightened, no looseness maintain 1S Downtime √ √
減速機 Body temperature Quantitative 0 40 °C Full-time 1W Downtime √
sound Qualitative No abnormal sound Full-time 1D Boot up √ √ √
gear Qualitative No pitting on the tooth surface Full-time 6M Downtime √
Oil level Qualitative Oil standard 2/3-1/2 maintain 1D Downtime √
2 Transmission parts of large and small cars Wheel set run Qualitative No gnawing phenomenon, wheel edge wear <1/3 maintain 1S Boot up √
Bearing Qualitative No abnormal sound maintain 1S Boot up √
Bearing seat Qualitative No rupture Full-time 1W Downtime √
Tooth take over run Qualitative Smooth transmission, fastened bolts maintain 1S Downtime √
ブレーキ Brake frame Qualitative intact maintain 1S Downtime √
Brake skin Qualitative Wear does not exceed 1/2 of the original thickness Full-time 1W Downtime √
Connecting bolt Qualitative No looseness, no shortage maintain 1S Downtime √
reel Ontology Qualitative No cracks, no deformation maintain 1S Downtime √
Bearing Qualitative No abnormal sound maintain 1S Boot up √
Bearing seat Qualitative No rupture maintain 1S Downtime √
3 Hook part Hook group Ontology Qualitative Dangerous section wear <10% Full-time 1M Downtime √ √
Qualitative No deformation, complete pins, maintain 1S Downtime √
Locking plate Qualitative Intact, no deformation Full-time 1S Downtime √
Pulley block run Qualitative Flexible rotation, complete pin shaft, no shifting maintain 1S Downtime √
4 other ワイヤーロープ Ontology Qualitative No broken strands, snags, burrs etc. maintain 1S Downtime √
track Cushion Qualitative No looseness of the cushion Full-time 1M Downtime √
Pressure plate Qualitative The pressure plate is normal without looseness Full-time 1M Downtime √
Wheel cover Ontology Qualitative Complete and well fixed maintain 1S Downtime √
5 電気部品 Protection System リミットスイッチ Qualitative Reliable, effective and sensitive maintain 1S Downtime √
Current relay Qualitative Effective, within 4--7 times the protection value of the rated current of the motor maintain 1S Downtime √
Zero chain Qualitative effective maintain 1S Downtime √
Sliding part Sliding mound Qualitative The wiring is tight, the contact is good, and the fixing is good maintain 1W Boot up √
Slip line angle iron Qualitative Fastened without deformation maintain 1S Downtime √
Contactor Moving and static contacts Qualitative The dynamic clearance is basically the same, and the burnout is less than 1/2 of the contact surface maintain 1S Downtime √
Auxiliary contact Qualitative Fastening of wiring maintain 1S Downtime √
Arc suppression cover Qualitative Complete, screw fastening maintain 1S Downtime √
other In-cabinet line Qualitative Bolt tightening, wiring neat and standard, no signs of burning and oxidation maintain 1S Downtime √
Each resistance box Qualitative The contacts are tight, the circuit is intact, and there is no sign of burning and oxidation maintain 1S Downtime √
Cabinet door Qualitative Locked and reliable maintain 1S Downtime √
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