What inspections should be done for the metal structure of KBK rail crane?
What inspections should be done for the metal structure of
KBK rail crane?
KBK track is composed of suspension equipment, track, turnout, traveling trolley, electric hoist, mobile power supply equipment (sliding line) and control equipment. It can realize the direct air transportation of materials by simply hanging on the plant roof or beam frame. Therefore, it is widely used in material transportation links or systems in all walks of life. What inspections should be done for the metal structure of
KBK rail crane?
1. The brake is an important part of
KBK crane, which directly affects the accuracy and reliability of the movement of each mechanism. Therefore, carefully check the brakes of lifting mechanism and luffing mechanism, and observe the opening of brake shoe and the wear of friction components. For the belt brake, pay attention to check whether the steel backing of the brake belt has cracks, whether the transmission of the brake is flexible, whether the brake frame is intact, and whether the elasticity of the main spring and auxiliary spring meet the requirements.
2. Check the reducer for oil leakage and abnormal noise in the box during operation. Abnormal noise is generally caused by bearing problems or excessive gear meshing backlash, serious tooth surface wear and other reasons.
3. Check the wire rope and pulley for wire breakage, wear, kink and corrosion. Mark the positions where the wear and wire breakage are serious but not exceeding the standard, so as to focus on re inspection; Check whether the safety limiter of the steel wire rope in the drum is effective and whether the steel wire rope pressing plate on the drum has been compressed.
The inspection of the pulley focuses on whether the wear at the groove bottom exceeds the standard and whether the cast iron pulley has cracks. The balance wheel of the pulley block of the pitching mechanism is easy to be ignored, and its rotation flexibility must be checked before installation. If the balance wheel does not rotate flexibly, the length and tension of the pitching left and right steel wire ropes cannot be adjusted through the balance wheel during installation, which will increase the difficulty and operation risk of adjusting the pitching steel wire rope at high altitude.
4. Check each coupling for looseness or even "rolling key". Check the elastic rubber ring of the elastic pin coupling for abnormal wear, and pay special attention to the wear condition of the gear ring of the gear coupling. When the installation accuracy is poor and there is a large offset between the two shafts, the whole gear ring will be bald soon. If this happens in the lifting mechanism, it is easy to cause serious accidents.
