Since the second half of last year, as local governments have become more and more strict in oversight control, the need to replace lighter ones with heavy ones has become more and more obvious, and the demand for standard rollover semi-trailers has also increased.
Under the premise that the curb weight remains unchanged at 49 tons, the light weight of the car is still the mainstream requirement of many users, so on the lightweight design of the standard car rollover, where to reasonably reduce the weight, let’s talk briefly now. a bit.
▎Where can the weight of the standard car rollover be reduced reasonably?
In terms of ordinary crushed sand and gravel transportation, the attached frame (located between the box and the beam) of the 13-meter side dump truck with a weight of about 7 tons is the key part of the side dump truck, mostly 100*100 For ordinary square tubes, 80*80*2.5 high-strength square tubes can now be used after weight reduction.
However, it is recommended to increase the square tube of the first two top brackets, and use 80*100*3 square tubes instead of reducing them as a whole.
Because according to past experience, a slight asynchrony during the topping will cause the center of gravity to deviate. The first two passes are generally called the place where the force is relatively concentrated and the weakest place. The opening and welding deformation is a common thing, and even breaks, so here Not light but aggravated.
Back to the topic of the book, there are the following points where you can lose weight:
The bottom plate can be replaced from a 2.0 mm thick ordinary plate to a 1.5 mm high-strength plate with the same strength and a light weight of about 120 kg.
Standard leaf springs (10 pieces of width 9 cm and thickness of 13 mm) generally have a dead weight of about 67 kg/frame, and can be replaced with 4 pieces of 90*22 thickened plate springs that are emerging in recent years (weight about 67 kg/frame) , For example, the three-axle vehicle requires six frames, which can reduce about 144 kg.
The suspension can be replaced from a standard type No. 60 (thickness 6 mm) to a light-weight and high-strength type No. 50 (thickness 4 mm). The entire set can be reduced by about 50 kg.
With regard to the rollover with the above conventional configuration with a dead weight of about 7 tons, the cumulative dead weight can be reduced by about 360 kg under the premise of ensuring the same strength, and the vehicle can reach about 6.6 tons after weight reduction. If you charge by weight, the annual income is also a considerable expense.
In the trend of lightweight trailers, in fact, aluminum alloy wheels and aluminum alloy accessories play a vital role. Only 12 wheels can reduce the weight of about 240 kg. However, when the transportation of sand and gravel During the unloading, there was nothing to do.
Because the tires are often buried when the rollover truck is unloading, the vehicle needs to be lifted up by the shifting roof to move the car away. It is suitable for rollover semi trailer.
