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What are the important parts of the semi-trailer

2022

04-22
Readings:Twice

A semi-trailer is a trailer whose axle is placed behind the center of gravity of the vehicle and equ......

A semi-trailer is a trailer whose axle is placed behind the center of gravity of the vehicle and equipped with coupling devices that transfer horizontal and vertical forces to the tractor. The semi-trailer frame is mainly composed of girder, welded I-beam, support beam, connecting beam, side beam, lock head, traction pin connecting device, panel and so on. It is necessary to introduce the nine important parts of the semi-trailer.

1. Side beams are generally channel steel or bent parts. At present, most trailers use channel steel. The supporting beams are the through-beams, which are now mostly W-beams.

2. For the pallet truck, the upper part refers to the pallet, gantry frame, etc. Column board is divided into flat plate and vertical corrugated board, vertical corrugated board is a typical board, the strength will be higher. Longmen frame can also be called "front block", generally not special requirements if the manufacturer will live removable, so often pull heavy goods and easy to slide goods must be the longmen frame do welding on the basis of two cable pull.

Shandong Leeyaoo Machinery Equipment Manufacturing Co., LTD

3. Traction pin is an important component that connects semi-trailer and tractor and bears traction force. It is connected with the traction seat. It is usually forged of chromium alloy steel. There are 50# traction pins and 90# traction pins for different cargo tonnage. Generally, the total weight of 50T trailer and cargo is limited, 50# pin is used below 50T, 90# pin is used above 50T, and 90# traction pin is used above 90T for safety.

4. Semi-trailer suspension is the use of non-independent steel plate stamping rigid suspension, a series of leaf springs and suspension support, used to support the load, slow down the impact of dynamic load. There are four kinds of suspension commonly used: series plate spring balance suspension, single point suspension, air suspension, rigid suspension (a line of two shafts).

5. The semi-trailer bridge is a support bridge. The bridge is connected with the frame through a plate spring, a tie rod and a suspension device to support and transfer the force of load between the frame and the wheel.

Shandong Leeyaoo Machinery Equipment Manufacturing Co., LTD

6. The electrical system of semi-trailer is composed of seven-core socket, cable, gas path, various lamps and lanterns, etc., which are used for lighting, safety warning and gas supply for brake, etc.

7. The support device of the semi-trailer is mainly used to support the trailer when it is unhooked, which is composed of legs and connecting brackets.

8. Semi-trailer protection device consists of side protection and rear protection to protect pedestrians and other vehicles from drilling under the semi-trailer. This thing is also done to save fuel, reduce wind resistance to do a good called side skirt board.

9. Other accessories on the semi-trailer include toolbox, spare tire rack, gantry frame, pile insertion, etc. There are small accessories such as tight rope, rope hook this kind of functional accessories, will be installed according to their own goods.

 

  


What are the important parts of the semi-trailer

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