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How to repair the forklift driving axle
Release Date:2015-10-15 Views:381

The forklift's axle housing is firmly fixed on the forklift’s frame. As the driving axle and the frame are rigidly connected, the driving axle undertakes the most weight when forklift handling cargos, and when forklift working on uneven road or the unequilibrium of fork’s load ,driving axle will come to damages of bending, fracture, axle casing bearing hole wear and axle casing journal wear and so on.

 

The test and repair of Forklift driving axle housing’s bending

Test of the axle housing’s bending. Before testing, the first thing is to correct positive half axis and the flatness of the flat contact flange of the hub end, for eliminate the error of its round face runout. Then fixing the standard half-shaft on the driving axle housing, tightening bearing, testing the center of the left half axles and right half axles from housing’s inside to see whether bending or not. The difference between the two axes should less than 0.75mm.

driving axle housing should be corrected when it over limit. During testing, the deformation should not be greater than the original bending deformation, and should keep the correction pressure for a period of time, in order to make axle housing a certain plastic deformation. If the deformation is too big, bending deformation more than 2mm, the correction can be done after preheat, but the heating temperature is not allowed to exceed 700 ℃. It is better to avoid heating corrections for casted axle housing.

2, The repair of forklift driving axle housing’s breakage:

Using the way of welding to repair the cracks of axle housing’s middle part and cracks on the flange, the detailed operation steps are as follows:

V-shaped groove with 90 ° crack along the crack, the depth of which is 2/3 of the thickness.

In the distance between the two ends of the crack 6-10mm, the drill diameter of 5mm hole.

Welding crack, the welding layer should be higher than the basic metal, but not more than 1mm. After front welding, and then welding its opposite side. The weld should be trimmed after welding.

The reinforced axle housing after welding, it is necessary to re-test the straightness error, shell cover and flatness error of the main reducer flange plane, and to correct, grinding to meet the standard.

3,The test and repair of other parts:

1) Screw thread’s damage should not less than 2 buckle, when over 2 buckle, it can be fixed with thread sleeve to repair or welding to repair it.

2) When journal wear of Semi-axle casing rolling bearing is more than 0.04mm, it can be chromed.

3) If semi-axle casing has any cracks and defects, it has to be replaced.

4) When the axle housing is broken, it should be replaced.

(LTMG)

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