What is an Articulated Truck?

Articulated truck is a very versatile earth-rock transportation machine in the large-scale construction of mining industry and various industries. Due to the special nature of the structure, it can adapt to harsh climate, poor terrain and high availability.

Articulated truck is a kind of very versatile in the large-scale construction of mining industry and various industries.

The key of an articulated truck is the articulator that connects the front and back parts, and its principle is similar to a universal joint. Each part has its own frame, the former part is equipped with the engine and its operating system, and the cab; the latter part is equipped with the body and the dump device, which connects the power part of the car with the cargo part through a hinged joint, and the hinged joint directly connects with the The front or rear frame of the car is connected, and the vertical and horizontal hinges are connected to make the vehicle have good driving performance: a part of the car can be turned to a left or right at a 45-degree angle relative to the other part in the horizontal plane, or even Are "folded" together. In addition, the front and rear frames can be independently and unlimitedly rotated about the common longitudinal axis in a plane perpendicular to the common longitudinal axis.

In particular, it completely eliminates the torsional load acting on the frame, so it can improve the reliability of the entire structure. Unlike ordinary cars working under roadless conditions, the frame must bear a large axial load; special The suspension device and the unique bogie can make the truck drive normally under the conditions of poor road and bad weather, so that the vehicle can drive in rugged terrain without placing excessive requirements on the suspension device ^[2]

Because the two parts of the frame form a folding angle when the articulated truck turns, the turning radius of the outer contour of the car is reduced, while the turning radius of the inner contour is increased, so that it can pass in a narrow passage; the two parts of the body can be compared with the common longitudinal direction. The rotation of the shaft can significantly reduce the wheel bounce in the vertical direction of the suspension system. The above factors make it necessary to use long and narrow carriages with sufficient depth ^[2]

Articulated trucks are more common in 2 and 3 axle models, with all-wheel drive mostly, and each axle is usually equipped with a differential lock; usually large wide-section tires are used, and their ground pressure is low to ensure that vehicles Passability and stability of the ground on soft and damp soil; the dump truck box is made of high-strength steel, and the long-stroke hydraulic cylinder can make the truck's flip angle reach about 70 degrees to ensure the smooth unloading of materials. Due to structural limitations, the articulated truck's load capacity is generally within 50 tons, and the power of larger models is about 400 kilowatts ^[1] .