With the development of the market logistics and transportation industry, the demand for semi-trailer transport vehicles is increasing, and there are more and more drivers who are engaged in transportation. Under the pressure of the situation, the development of light semi-trailers with wider uses can better meet the needs of society. So how to choose a light semi-trailer with strong carrying capacity and light weight? Hubei Ouyang Huajun Special Purpose Vehicle Company gives the following suggestions:
1. Try to buy high-quality products from regular manufacturers. For those "three no" semi-trailers without trademarks, factory addresses, and registrations, or semi-trailers assembled by repair shops, you should be careful when choosing. The quality of such products is not guaranteed, so try not to buy them;
2. The quality of the semi-trailer should be good and the load-bearing capacity should be strong to improve the transportation capacity;
3. The body should be straight, and the four-corner hooks should be complete; there should be driving signs and lighting facilities; and the pneumatic brake joints, hydraulic brake joints, power plugs, etc. of the tractor should be reliably connected;
4. The semi-trailer should have a leaf spring damping device, the spring stiffness should be appropriate, the driving should be smooth, the braking should be reliable, and an unloaded test can be performed when selecting;
5. The traction tripod of the semi-trailer should be isosceles symmetrical, that is, the wheel axle of the semi-trailer should be consistent with the traction The center line is vertical, the distance between the two tires and the traction center line should be equal, and the trailer traction hole (traction point) should be located on the traction center line;
6. When the traction tripod is fully loaded, it should be able to remain parallel to the ground, and the front end is allowed to be slightly raised; when rotating 90 degrees, the tripod should not interfere with the rear wheel of the tractor;
7. The tightness of the wheel bearing should be appropriate, and there should be no obvious runout in the radial direction and end face of the wheel; the degree of commonality of the main parts such as bearings, brakes, and wheels should be high, and the main parameters should meet the standard requirements;
8. The welding of each part of the semi-trailer should be smooth, and there should be no false welding or desoldering; the paint should be beautiful; the tire quality should meet the requirements, and there should be no bulging, cracking, etc.