【Wikipedia / Academic articles】What is the difference between a semi-trailer and a semi-trailer?

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A semi-trailer is a trailer whose axle is placed behind the center of gravity of the vehicle (when the vehicle is evenly loaded) and is equipped with coupling devices that can transmit horizontal and vertical forces to the tractor. Semi-trailers are generally three-axle semi-trailers, and their types are divided into eleven-meter warehouse rail semi-trailers, 13-meter warehouse rails, low-level semi-trailers and other types. It is a heavy-duty transportation vehicle connected with a semi-trailer head through a towing pin.
Compared with “single-type” cars, semi-trailers can improve the comprehensive economic benefits of road transportation. Transportation efficiency can be increased by 30-50%, cost by 30-40%, and fuel consumption by 20-30%. More importantly, the use of semi-trailers can also promote the organization of logistics in China to a certain extent.
The semi-trailer is a large cargo that is mainly transported in a large volume and is not easy to split, such as an excavator, etc., the fence type is more suitable for pulling fresh goods, such as vegetables, fruits, etc. The van type is more suitable for pulling bulk goods and moisture resistance More expensive goods
A semi-trailer is a commercial vehicle equipped with a special device for towing a semi-trailer.
The front with a driving capability is called a tractor, and the one without a traction drive is called a trailer. The trailer is towed by the tractor.
There are two ways to connect the tractor and the trailer: the first is that the front half of the trailer is placed on the traction saddle above the rear section of the tractor, the bridge behind the tractor bears part of the weight of the trailer, this is the semi-trailer; the second In this case, the front end of the trailer is connected to the rear end of the tractor. The tractor only provides forward pulling force and drags the trailer, but does not bear the downward weight of the trailer. This is the full trailer.

A semi-trailer is different from a full-trailer. A semi-trailer is a trailer whose axle is placed behind the center of gravity of the vehicle (when the vehicle is evenly loaded) and is equipped with a coupling device that can transmit horizontal or vertical forces to the tractor! Generally, there are two axles for a full trailer and one axle for a semi-trailer. A semi-trailer refers to a vehicle that has no power by itself and carries a vehicle that is driven by the main vehicle.
Simply put, the trailer is connected to the truck in front by a hook. The semi-trailer is connected to the traction seat of the tractor by a traction pin. The common container transport vehicle is a typical semi-trailer, and the rear loading part is a semi-trailer.
There are also differences in uses. Full trailers are mainly used for short-distance transportation in factories, ports, docks, warehouses and other fields, while semi-trailers are mainly used for long-distance transportation of goods.

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Vulcan machinery manufacturing co. Ltd. summarizes the difference between semi-trailer and semi-trailer:
1. Different nature: Semi-trailer tractors are commercial vehicles equipped with special devices for towing semi-trailers. A semi-trailer is a trailer whose axle is placed behind the center of gravity of the vehicle (when the vehicle is evenly loaded) and is equipped with coupling devices that can transmit horizontal and vertical forces to the tractor.
2. Different types: Semi-trailers are generally three-axle semi-trailers. The types of zhidao are divided into 11-meter warehouse rail semi-trailers, 13-meter warehouse rails, low-level semi-trailers and other types. The semi-trailer truck does not.
3. The center of gravity is different: a semi-trailer is a trailer whose axle is placed behind the center of gravity of the vehicle (when the vehicle is evenly loaded) and is equipped with a coupling device that can transmit horizontal or vertical forces to the tractor. The host vehicle co-carries vehicles that rely on the traction of the host vehicle.

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vulcan machinery manufacturing co. Ltd. Friendly reminder matters needing attention:
1. In order to drive safely and extend the service life of the special semi-trailer, it is necessary to replenish the lubricating parts regularly with grease. When replenishing grease, pay attention to the lubricating equipment and the oil filling cup should be cleaned first. Replace if damaged.
2. After the vehicle has been in use for 6 months, conduct a comprehensive inspection every 12 months to ensure the performance of the vehicle (including maintenance at the 6th month).
3. Check the existing fasteners, focusing on the fasteners used in the outriggers, tires, axles, etc. (in any case, nuts, screws and other fasteners should be tightened to the recommended torque parameters).


Post time: May-19-2020
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