Reason for track wear of electric hoist
Electric hoist is commonly used in some large and medium-sized enterprises as well as small enterprises. However, due to various reasons, the flange of trolley i-steel track will be damaged after use, which brings certain safety risks to users.Due to inadequate understanding of the causes of track damage, it is often not well handled.Next small make up to introduce the causes of damage and treatment methods, to give some reference to the use of units.
Reasons for wear:
1. The parallelism deviation of the car's driving wheel hole is large, resulting in the unbalanced running of the car.
2. The small wheel diameter deviation of the electric hoist is large, causing the trolley to run on the i-steel track.
3. The concentricity deviation between the driving wheel and the passive wheel shaft is large, resulting in the unstable running of the car.
When there is one of the above reasons, the electric hoist will swing to one side when the trolley is running, causing the running direction to be at a certain Angle to the track, thus causing the wheel rim to chew the rail.After being used for a period of time, the lower flange side of i-beam is severely gnawed and its surface has obvious gnawing and scraping marks.
Treatment:
1. When the damaged i-beam track is measured and the flange width is no more than 5% of the original size, repair may not be carried out, but the lateral clearance between the flange and the track must be readjust according to the standard requirements.
2. When the side wear amount of flange is greater than 5% of the original size and less than 10mm, repair shall be carried out by means of reinforcing welding plate under the flange of i-steel.
3, the serious nibbling phenomenon, should first replace the electric hoist car in line with the standards, and check the car running smoothly without swing after installation.
The above is some about the electric hoist trolley I steel track wear some reasons and the ending method, hope to give you some help.
