As a mechanical equipment, a bridge crane may have various failures if it is used for a long time. Among them, the eccentric wear of the wheel flange is a common crane failure. If it is not handled in time, it may cause more serious equipment damage, or even Cause a safety incident. Let’s take a look at why the wheel flanges of bridge cranes are eccentrically worn and how to deal with them.
In the course of use, errors in equipment manufacturing and installation caused the bridge to shift laterally, resulting in excessive tightness between the wheel flange and the side of the track. When the cart is running, friction occurs between the wheel flange and the side of the track, and over time causes the wheel flange to wear off.
When analyzing the reasons for the eccentric wear of the wheel flange of the bridge crane, it can be considered from the following angles:
1. The deflection of the main beam is too large
When the bridge crane is manufactured, the main beam has a certain upper deflection. When the crane is used for a long time, the bridge will be permanently deformed, the box will be deflected, and the distance between the wheels and the center line of the main beam will be reduced, causing the wheel flanges to shift toward the center of the main beam, resulting in the clamping of the track and the deviation. grind.
2. The track is not kept level, and the two tracks are not kept level, which will cause the wheels on both sides of the crane to be inconsistent in the degree of wear and consumption during the operation of the crane, which will lead to the problem of eccentric wear of the wheel flange.
3. The running speeds of the wheels on both sides of the crane are inconsistent. The inconsistency of speed may be caused by the different diameters of the wheels on both sides, or the different speeds when driven by two motors. When the speeds of the wheels on both sides are different, it will cause the crane to generate torque, causing the rim of the wheel to wear.
4. When the vertical deflection of the wheel is too large, there will be a force opposite to the vertical direction. This force will cause eccentric wear when the wheel is in contact with the track.
5. When the horizontal deviation of the wheel is out of tolerance, the speed of the wheel can be decomposed into two speeds in the horizontal direction and the vertical rail. The speed of the vertical rail causes the crane to move laterally, the wheel flange and the side of the rail are too tight, and eccentric wear occurs. Phenomenon.
The bridge Crane factory has the problem of wheel flange partial wear, and it is necessary to correct it in time to avoid irreparable losses caused by rail-climbing accidents caused by rail gnawing.
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