What Are the Different Types of Trucking Transport?

Wagon is a commercial vehicle designed and equipped mainly for carrying goods. It can tow a trailer.

Trucks can be roughly divided into three categories:

The truck consists of four parts: engine, chassis, body and electrical system. The operation of trucks is mainly driven by the engine and chassis. The chassis includes the drive train, the drive train, the steering train, and the brake train.

Truck operation principle: When we start the car, the engine generates power and transmits the power to the gearbox. The power passes through the gears in the gearbox to convert high-speed and low-torque power into low-speed and high-torque power, which is then transmitted to Driving the rear axle, driving the rear axle drives the rear wheels to rotate, so a car moves.

Functions and main components of each part:

A. Engine: The source of power for a car. Its function is to make fuel burn and generate power, and then drive the wheels to drive the car through the drive train.

1. Tractor and dump trucks in heavy trucks will be the main models, and the market share of trucks and vans will gradually shrink.

Product structure of foreign companies, and Sinotruk,

1. The construction of 4S stores is attracting attention in the construction of marketing channels for medium and heavy truck companies, but it is difficult to become the mainstream.

The rapid growth of the national economy has brought about a substantial increase in demand for road freight, thereby promoting the growth in demand for trucks. China's logistics cost accounts for nearly 20% of the gross national product, which is about double that of Japan and the United States. The demand for trucks has a large correlation with the growth rate of fixed asset investment in the whole society. In the long run, the factors driving the growth of the truck industry still exist, mainly road freight demand, infrastructure construction and investment in real estate development.

1. The first insurance is very important. New car maintenance should be sufficient. Most car owners will go to special service stations to perform maintenance in accordance with the manufacturer s regulations. Guarantee free oil change. For example, Shanghai GM will provide 4 free oil and oil filter replacement services during the warranty period. But there are a few car owners who neither consult the staff nor read the Maintenance Manual, so there are also examples of missing the first insurance. Because it is a new car, the owner missed the first insurance, but the engine oil turned black and dirty, which would not cause any serious consequences. However, experts suggest that owners are better to do the first guarantee, because the new car is in a running-in state, the running-in of mechanical parts, and the demand for lubricating oil will be relatively high. This is the significance of doing the first guarantee.
2. The second guarantee is also important. Replacing the brake pads for 40,000 to 60,000 kilometers is relatively important. The project involves the inspection and maintenance of up to 63 projects including engines, automatic transmissions, air-conditioning systems, steering systems, braking systems, suspension systems, body parts, tires, etc. In addition, there are also quality inspection test cars. It can be seen that after so many tests and maintenance of the car, the entire car condition will obviously enter the optimal state, and the safety of the car can be best guaranteed.
3. Key items for maintenance (1) Brake pads < br Generally speaking, the brake pads need to be replaced when the vehicle reaches 40,000 to 60,000 kilometers. For owners with bad driving habits, the replacement stroke will be shortened accordingly. . If the owner sees the red light in front, instead of refueling, he refuels, and then adopts the drag brake method to wait for the green light to release, which is a habit of this kind. In addition, if the main vehicle is not maintained, it will not be possible to detect the brake pads becoming thin or worn out in time. If the worn brake pads are not replaced in time, the braking force of the vehicle will gradually decrease, threatening the owner's safety, and the brake discs will be worn out, and the owner's maintenance costs will increase accordingly. Take Buick as an example, if you replace the brake pads, the cost is only 563 yuan, but if the brake disc is also damaged, the overall cost will reach 1,081 yuan.
(2) Tire rotation < br Note that one of the two tire maintenance items of the tire wear mark Erbao is tire rotation. In the case of emergency use of spare tires, owners should replace them with standard tires as soon as possible. Because of this particularity of spare tires, Buick does not use the method of cyclical replacement of spare tires and tires of other models, but instead of four tires. The purpose is to make the tires wear more evenly and prolong its service life. In addition, tire maintenance projects also include adjusting air pressure. As for the tire pressure, the owner may not take it lightly. If the tire pressure is too high, it is easy to wear the middle of the tread. It is worth reminding that it is difficult for the owner to visually measure the tire pressure without relying on a barometer. There are some details to the daily use of tires. If you pay attention to the distance between the tread pattern and the wear mark, in general, you should change to a new tire if the distance is within 2-3mm. For another example, if the tire is punctured, if it is the side of the tire, the owner must not follow the advice of the fast repair shop to repair the tire, and it should be replaced immediately, otherwise the consequences will be serious. Because the sidewall is thin, it cannot bear the weight of the vehicle after repairing, and it is easy to burst.
Prevention-oriented, combined with prevention and control, standard maintenance in accordance with the maintenance manual. In this way, the truck will not have a big problem.

1. Clutch trembling < br Clutch trembling refers to the phenomenon that the vehicle is shaken when the clutch is not engaged smoothly when the car starts. The clutch trembles, which will not only affect the normal starting of the vehicle, but also damage the parts in severe cases.
The main causes of clutch chatter are:
1. The height of the inner end of the separation claw is inconsistent. (adjustable)
2. The fixing bolts of clutch housing and flywheel housing are loose.
3. The engine fixing bolts are loose and the bracket is broken.
4. Clutch driven disc rivets are exposed and hit the pressure disc.
5. Driven disk warped.
6. The clutch pressure plate is warped and deformed, and the spring force is insufficient.
7. Driven hub spline groove and transmission first shaft spline teeth have too much clearance due to wear.
8. The front and rear supports of the engine are damaged.
Second, the clutch slips < br The vehicle cannot start or is difficult to start, the acceleration cannot be added, and a serious scorching odor is emitted when the clutch is slipping.
The causes of clutch slippage are as follows:
1. The clutch free stroke is too small, the release bearing is pressed on the inner end of the release lever, the pressure plate is in a semi-detached state, and it slips when transmitting power.
2. Improper driver operation. Shifting uphill is not timely. When the engine is about to stall, shift to the low gear. To save fuel, the gear is turned off and coasting. When the engine is restarted, the high gear is first engaged, and then the clutch pedal is released to force Engine started; increased slipping of clutch friction plates.
3. The clutch pressure plate spring is broken, which greatly reduces the ability to transmit engine torque, resulting in slippage.
4. The clutch friction plate becomes thin after wear, the surface is hardened, and the rivets are exposed or stained with oil is also the cause of clutch slippage.
5. Improper adjustment of clutch release lever, loosening of the coupling bolt of clutch and flywheel will also cause slippage of clutch.