1. Leakage
Due to the loosening of electric hoist parts, vibration and heat of the machine, leakage will occur on the sealing surface of the machine and pipe joints. Because the casting and processing defects of the gourd are difficult to find during assembly and debugging, the defects will be exposed through the vibration and impact during the operation, which is manifested as leakage (seepage) of oil (water). Therefore, leakage is prone to occur during the running-in period.
2. loose parts
The newly processed and assembled electric hoist parts have deviations in geometric shape and matching dimensions. In the initial stage of use, due to the impact of alternating loads such as shock and vibration, as well as the influence of factors such as heat and deformation, and excessive wear and tear, it is easy to use Originally fastened parts become loose.
3. poor lubrication
Due to the small fit gap of the newly assembled parts of the electric hoist, coupled with assembly and other reasons, it is difficult to ensure the uniformity of the fit gap. It is difficult for lubricating oil (grease) to form a uniform oil film on the friction surface, thereby reducing the lubrication efficiency and causing early abnormal wear of the parts. In severe cases, it will cause scratches or bites on the precisely matched friction surfaces, resulting in mechanical failures.
Post time: Aug-04-2023