Common Faults Of Hydraulic Hoists

2021-03-05 14:14

Improper installation of the head wheel and bottom wheel drive shaft of the hoist can easily cause the hopper belt to deviate. The main manifestations are: the drive shafts of the head wheel and bottom wheel are in the same vertical plane and are not parallel; both drive shafts are installed in a horizontal position and not In the same vertical plane; the two drive shafts are parallel, in the same vertical plane and not horizontal. After the occurrence of the above situation, the hopper belt deviates, which is easy to cause the collision between the hopper and the barrel, and the tearing of the hopper belt. Due to the long-term, high-strength continuous operation of the head wheel of the raw meal storage hoist, local bulging, delamination, abrasion and other problems often occur at the rubber tile part of the head wheel. The long-term operation with illnesses gives the company safe production Bring hidden dangers. The price of belts and equipment parts is high, and traditional methods cannot achieve on-site repair in a short time, which brings great troubles to enterprises.

The traditional method uses repair welding or brush plating and machining and repair, but both have certain drawbacks: the thermal stress generated by the repair welding high temperature cannot be completely eliminated, and it is easy to cause material damage and cause the parts to bend or break; while the brush plating is coated The thickness of the layer is limited and it is easy to peel off, and the above two methods use metal to repair the metal, which cannot change the "hard-to-hard" matching relationship. Under the combined action of various forces, it will still cause re-wear.

In response to the above-mentioned problems, European and American companies currently mainly use polymer composite repair methods, and the most mature application is the American Fluorescence Blue technology system. The polymer material has strong adhesion, excellent comprehensive mechanical properties, and can be disassembled and machine-free. There is no effect of repair welding thermal stress, and the repair thickness is not limited. At the same time, the product has a retreat that the metal material does not have, which can absorb the shock and vibration of the hoist, avoid the possibility of re-wear, and greatly extend the service life of the equipment components. Save a lot of downtime for the enterprise and create huge economic value.