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The above describes what is the crane wheel gnawing rail, this article introduces the measures to prevent the crane wheel gnawing rail as follows：

1. Reduce crane wheel diameter difference:
   If the diameter difference of a pair of driving wheels exceeds 0.2% of its diameter, and if the diameter of the passive wheels exceeds 0.5%, it should be reprocessed to the same basic size, and the diameter difference between the driving wheels and the passive wheels should not exceed 3mm.
2. Adjustment of crane wheel span, diagonal and alignment:
   The deviation of the wheel span and diagonal of the cart should not exceed ±7mm; the deviation of the wheel span and diagonal of the trolley should not exceed ±3mm, and the same position difference of the crane wheel should not exceed 2mm. During adjustment, the method of reducing one side of the spacer ring of the wheel bearing and increasing the other side correspondingly can be used to move the wheel. Or install the end beam on the board
   The bolt hole of the bearing box is enlarged, and the positioning key is moved to adjust the span, diagonal and alignment difference of the wheel.
3. Adjustment of the transmission mechanism of the cart:
   The crane wheels driven separately, the bearings and brakes of the two sets of driving mechanisms should be adjusted to the same degree of tightness. If the transmission parts of the reducer and coupling are replaced, both sides should be replaced at the same time. The motors of the two carts should be of the same model and parameters.
4. Tapered roller bearings should have the same clearance:
   The axial clearance of tapered roller bearings shall comply with the provisions in Table.
5. Adjustment of crane wheel vertical deflection:
   The vertical deflection value a of the large and small wheels, that is, the distance from the lower end point of the measured length L to the plumb line, should not exceed L/350. The vertical deflection direction of the wheels on both sides should be in a "V" shape, that is, the upper part of the wheels should be outward, and when the crane wheels are loaded, the wheels will approach vertical. In order to correct the vertical deflection value a of the crane wheel, pads should be added between the angular box and the horizontal positioning key or between the horizontal positioning key and the end beam bending plate. Which side of the bearing box of the crane wheel to add pads depends on the deflection direction of the wheel. If the wheel is biased to the right, add pads to the left; otherwise, add pads to the right. The thickness of the pad during pad adjustment is calculated according to the following formula: t=Ba/L (1) In the formula: B—the center distance of the wheel bearing box; a—vertical deflection value; L—measurement length. When adjusting, if the positioning bolts of the bearing box cannot pass through, the bolt holes on the bent plate can be enlarged. After the adjustment is completed, the positioning key and the adjustment backing plate should be spot-welded on the bent plate of the end beam.
6. Adjustment of crane wheel horizontal deflection:
   (1) Measurement of horizontal deflection of crane wheels. First find two parallel lines as reference lines to measure the horizontal deflection.
   (2) Adjustment of horizontal skew. In order to correct the horizontal deflection, a cushion can be added behind the vertical positioning key of the angular bearing box, and the position of the cushion depends on the direction of deflection.

This is the corresponding measure that the crane wheel can take when encountering rail gnawing.

Flagcrane have a professional technical team, which can design and produce standard and non-standard crane hoist and spare parts. If there are other special requirements. it can be customize according to user needs and negotiate by both parties.