The construction site has a wide terrain, and the application space of cranes is very large. However, cranes belong to large machinery, and the probability of safety accidents is very high, so the application of cranes should be more standardized and rationalized. Generally, the truck crane is a single beam, but the center of gravity will shift during the crane operation, which is a great test for the crane wheels.
Today, Huai'an Truck mounted Crane Rental will explain to you how to deal with the problems of the wheels of the single beam crane?
The wheels of the single girder crane are driven by open gears, that is, there is a set of gear rings on the outside of the wheels, which mesh with the output gear of the reducer. Because of the bad working environment and stable open gear condition of the single girder crane, a large part of the wheel damage occurs on the gear. Here's everyone's details:
Common damage of external gear ring includes gear tooth fracture, excessive wear of gear tooth, gear crack, and gear tooth surface beyond the allowable range. The main reasons for the above problems are as follows: the single girder crane is not stable in operation, which produces large impact and vibration during operation; Poor precision of wheel device, resulting in poor gear engagement; Gear heat treatment failed and external hardness was unqualified. To deal with such problems, first check the device accuracy of the wheel and the meshing state of the big and small gears.
The damaged gear shall be replaced in time, and the replaced gear shall be subject to external hardness test. The drive mechanism can also increase the frequency conversion drive, reduce the impact of starting and braking, and extend the service life of the wheel set.
In addition to gear problems, there are also some problems, such as rim wear, bearing damage, shaft damage, etc. If the rim is damaged, Crane rental company It is necessary to check whether the single beam crane is gnawing the rail. Bearing damage is usually caused by the small size of the bearing or the quality of the bearing itself. The damage of the shaft is related to the heat treatment of the shaft and the accuracy of the device.
In a word, first find out the cause of the problem and deal with it, then replace the corresponding parts. If the planning selection is too small, it is necessary to consider changing to other product models with high bearing capacity, such as replacing ball bearings with roller bearings and replacing ordinary carbon steel shafts with alloy materials.
First remove the motor and gearbox, then remove the baffle on one side, and then hit the axle with something to jack up the end beam together. Then open the front cover of the end beam and take out the wheel. The single girder crane is composed of metal structural parts and various components. Generally speaking, the life of metal structural parts should be good at the life of components, so it is often necessary to replace various components in the application process. The selection of parts will affect the subsequent application of lifting machinery. It is very important for the operators of single girder cranes to select high-quality and low-cost parts.
