Why is the semi-trailer broken? Causes and solutions
The girders are an important part of the semi-trailer, and the importance is self-evident. No one wants his semi-trailer to break the girders. What are the reasons for the semi-trailer breaking the girders?
First, the manufacturer reasons
1. Inferior steel for semi-trailer girders
The reason that is easy to understand is that the quality of the girders used in the trailer factory is not good, and the load capacity of the design cannot be carried, causing the girders to break.
2. Reduce the beam specifications
Secondly, the trailer factory cut corners to save costs. Mainly to reduce the specifications of the girders, originally 14 thick vertical plates, reduced to 10 thick, and the user does not know, but also according to 14 thick load capacity to pull the goods, the girders overload work for a long time, the break is also reasonable in.
3. Connect the web of the girders
In addition to reducing the specifications of the girders, some conscience tractor manufacturers save costs. The webs of the girders are connected by two shorter steels. The bearing capacity is definitely worse than the whole one. It can be said that it is a factory. Broken girders, users should pay attention to inspection when buying a car.
4. Welding is not welded well
In addition to the web fracture in the girders, there is also the phenomenon of cracking of the lower wing. There are two main reasons for this. One is the technical problem of the welder, and the other is that the voltage is unstable and not welded when welding.
Second, the reasons for user use
1. Use semi-trailer overload or concentrate load. Each semi-trailer has its own set capacity, and the long-term over its load-bearing range will have the danger of breaking the girders. Moreover, the heavy load transport of the semi-trailer is also prone to break the girders.
2. Welding modification on the girders. Some Fuyang side-turning semi-trailer users will modify the girders for more transportation of goods, which will affect the long-term use of semi-trailers, and will easily cause the semi-trailer to break the girders.
Third, light body hang more attention should be paid to the use of light body hang drivers should pay special attention, light body hang can not be overloaded, but can not concentrate load, high-strength steel girders are less flexible, not suitable for too bumpy road, must pay attention Otherwise, there may be cases where the broken beam is broken.
How to avoid the semi-trailer breaking the beam? From the above reasons for the broken beam, when choosing a trailer, choose a reputable sales, choose a large manufacturer, can avoid a lot of trouble. Be sure to pay attention when using it. Do not overload, weld the girders privately, and pay attention to the road conditions.
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