Repair method of electric forklift drive axle housing

The drive axle housing is firmly installed on the forklift frame. Because the drive axle and the frame are rigidly connected, the drive axle will bear most of the weight during forklifting, handling, and stacking operations. In addition, there are uneven roads and uneven fork loads, so the drive axle will bend. , Fracture, abrasion of axle sleeve bearing hole and axle journal abrasion, etc. How should we repair these problems?　　1. Repair of the bending of the drive axle housing of the electric pallet truck. 　　 Correction should be made when the drive axle housing is bent beyond the limit. During correction, the correction deformation should not be greater than the original bending deformation, and the correction pressure should be maintained for a period of time to make the axle housing have a certain degree of plastic deformation. If the deformation is too large, when the bending deformation is greater than 2mm, it can be corrected after preheating, but the heating temperature is not allowed to exceed 700°C. The cast axle housing is good to avoid heating correction. 2. Repair of the cracks in the drive axle housing of the electric forklift. The cracks in the middle of the drive axle housing and the cracks on the flange can be repaired by welding. The operation points are as follows: 　　 (1) Electric welding welding cracks, the welding layer should be higher than the basic metal, but No more than 1mm. After the front side is welded, repair the weld on the reverse side, and the weld seam should be smoothed after welding. If the welding repair is on the working plane, the flatness error should not be greater than 0.25mm.　　 (2) After the crack is repaired by welding, the reinforced web shall be welded at the crack, the thickness of which is generally 4-6mm, and the reinforced web shall be symmetrical to the center of the drive axle housing.　　 (3) If the crack penetrates into the drive axle housing cover or the flange plane of the final drive, another reinforcement web ring shall be welded after the repair. The reinforced abdomen ring of the drive axle housing cover of the electric forklift can be multiplexed on the outside, and the main reducer housing should be multiplexed on the inner surface depending on the permission of the internal space. When welding the reinforced web ring, the reinforced web ring should be pressed tightly on the plane with bolts to avoid position shift and deflection during welding.　　 (4) The electric forklift drive axle housing after repairing and repairing shall be re-examined for its straightness error, the flatness error of the housing cover surface and the flange plane of the final drive, and corrected and ground to meet the standards.　　 The above is a brief introduction of the repair methods for the broken or bent drive axle housing of the electric forklift. I hope these methods will be useful to everyone. If you have any other questions, please feel free to contact us, and we will try our best to solve it for you!
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