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Failure analysis of crane biting rail

Time: 2018-12-04 14:23

After the crane attacked the gnawing track, it should look at the condition of gnawing rail in detail. The maintenance of the crane in Wuxi, and measure the relevant yardstick, through the induction and analysis, find out the reason of gnawing rail, and decide the repair plan.

(1) to adjust the track of a cart, the height, span and linearity of the track should be adjusted according to skill requirements. The tightening condition of the bolts should be checked. It should be checked in half a year. The wheel gnawing track is often attacked on a certain section of the track, and when necessary, the track should be replaced in time.

(2) when driving apart, the cone type automatic wheel set is selected, and the large end face of the wheel set is placed on the inside side. If the cart is deflected, the diameter of the front automatic wheel set will be smaller, and the diameter of the automatic wheel set on the backward side will be larger. At the same speed, the lag of the automatic wheel set will be larger, so that the bridge will automatically move. Reduce the error of the diameter of the automatic wheel set of the bridge crane, improve the surface hardness of the wheel, reduce the tread wear, and often check the wheel diameter.

(3) the deformation of the bridge structure constitutes the correction of the rail biting of the cart. The flame method or the prestress method can be used. This method is very laborious. The wheel alignment can be adjusted to reduce the scale error of wheel span and diagonal line caused by crane deformation, which is the best plan to correct this gnaw rail.

(4) adjust the transmission organization of the cart. In the running organization transmission system, because of the errors caused by the wear of parts, the connecting parts that can be formed in the system should be considered when repairing. For example, see the reducer, the wear condition of the coupling gear, the gap between the key and the keyway, and the retarder of the coupling. Then think about whether or not parts can be modified or replaced. When the driving organization of a separate driving car causes the two wheels of a vehicle body not to start or stop together due to the defects of the motor or brake, the electrical defects should be eliminated, the motor is adjusted or the brake is adjusted from scratch.