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Henan Kino Cranes Co., Ltd

No.730, Xinghai Center, Hongqi District, Xinxiang, Henan, China

Tel: +86-373-3809941

M/P: +86-15993036980

E-mail: inquiry@kinocranes.com

Official Website: www.kinocranes.com

The Reason Analysis And Solution Of Crane's Dropping Way

May 14, 2019

During the normal operation of the crane, the track suddenly fell off. We are curious about what causes this kind of failure and how to deal with it.

In fact, the crane fault reasons mainly include motor fault, resistor fault, reducer bearing damage and wheel bearing damage.


The specific analysis is as follows: if the axial clearance of crane wheel bearing is too large, the wheel is not actually positioned in the horizontal direction.

The wheel will produce the horizontal deflection under the accidental factor action, at this time the horizontal deflection is quite big, therefore the bridge suspension will produce the serious skewed movement, thus causes chews the rail, to drop the track.


Secondly, when the crane wheel horizontal deflection and diagonal deviation, will also cause rail and track.

In order to reduce the possibility of crane similar problems, on the one hand to pay attention to the wheel bearing axial clearance inspection, control it in a reasonable range.


The specific method is to lift the end beam so that the wheel is suspended, and use the crowbar along the axis to pry the wheel, to see whether there is axial clearance.

If so, pry the wheels to one side and open the bearing box cover on the other side.

Move the outer ring of the bearing inward, measure the clearance between the end face of the outer ring of the bearing and the bearing cover when the wheel has no axial clearance and can be turned gently by hand, so as to determine the thickness of the pad.


Then all we have to do is the crane wheel's diagonal, span and other factors to determine which side the pad is added.

When measuring the clearance of the driving wheel bearing, the driving wheel should be separated from the driving shaft.

After the adjustment, the crane off the fault of the natural word to solve.

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