Brake adjustment of tractor and semi-trailer

When braking a semi-trailer, attention should be paid to immediately stop the tilting action, straighten the body pull rod, and then brake. When the speed is a little slow, then tilt your body and turn.

Features: Compared with "integral" cars, semi-trailers can improve the comprehensive economic benefits of road transportation. The transportation efficiency can be improved by 30-50%, the cost can be reduced by 30-40%, and the fuel consumption can be reduced by 20-30%. More importantly, the use of semi-trailers can also promote the organizational form of logistics in China to a certain extent.

Main classification

In the market, tractors are mainly divided into two categories: full-trailer tractors and semi-trailer tractors.

1. Semi-trailer tractor: the first half of the trailer rides on the traction saddle at the rear of the tractor, and the bridge behind the tractor bears part of the weight of the trailer.

2. Full trailer tractor: The front end of the trailer is connected with the rear end of the tractor. The tractor only provides forward pulling force to drag the trailer, and does not bear the downward weight of the trailer.

The axle of the semi-trailer is placed behind the center of gravity of the vehicle (when the vehicle is uniformly loaded), and the trailer is equipped with a coupling device that can transmit horizontal force and vertical force to the tractor. Generally, it is a three-axle semi-trailer, which is divided into eleven-meter barn semi-trailer, thirteen-meter barn semi-trailer and low-level semi-trailer. It is a heavy transport vehicle connected with the front of a semi-trailer through a traction pin. Suitable for the transportation of bulk goods such as coal, ore and building materials.

Refer to the above content: Baidu Encyclopedia-Tractor