Regarding the maintenance work of the main components and parts of the single beam crane

Regarding the maintenance work of the main components and parts of the single beam crane. The following is an introduction from the Shandong single beam crane manufacturer on the main components and maintenance of single beam cranes!

1. Inspection of steel wire rope. When inspecting the steel wire rope, special attention should be paid to observing the breakage, wear, twisting, rust, and other conditions. For certain locations with severe wear and breakage but not exceeding the standard, markings should be made for tracking and re inspection. Pay attention to checking whether the safety limiter of the steel wire rope in the drum is effective, whether the steel wire rope pressure plate on the drum is tightly pressed, and whether the number of pressure plates is appropriate.

2. Check the reducer mainly to see if it leaks oil. If there is any abnormal noise inside the box during operation, the box cover should be opened for inspection. It is usually caused by bearing damage, excessive gear backlash, severe tooth wear, and other reasons.

3. Check the performance and condition of the brake. The brake is an important component on the crane, which directly affects the accuracy and reliability of the movement of various mechanisms. Therefore, it is necessary to carefully inspect the condition of the brakes of the lifting and slewing mechanisms, observe the opening of the brake shoes and the wear of the friction components and brake pads. Attention should be paid to checking the steel backing of the brake band for 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 meets the requirements for belt brakes.

4. Check for any looseness or even "rolling keys" in each coupling. Pay special attention to checking the elastic rubber ring of the elastic column pin coupling for abnormal wear, and pay special attention to the wear condition of the gear ring of the toothed coupling. Due to poor installation accuracy, when there is a significant offset between the two axes, the entire gear ring will quickly wear out in a short period of time. If such a situation occurs in the lifting mechanism, serious accidents are prone to occur.

5. Inspection of pulleys. The main issues are whether the wear at the bottom of the groove exceeds the standard and whether there are cracks in the cast iron pulley. For the balance wheel of the pulley system of the tilting mechanism, it is easy to be ignored because it does not move under normal circumstances. So, before installation, it is necessary to check the flexibility of its rotation. Otherwise, the length and tension of the left and right steel wire ropes cannot be automatically adjusted by the balance wheel during installation, which increases the difficulty and danger of adjusting the ropes at high altitude.