What is a dump truck?

1, Definition of dump trailer
Self dumping trailer, as the name suggests, is a trailer type transport vehicle with automatic unloading function. It is usually composed of a tractor (such as a truck head) and a trailer (also known as a carriage) connected by a traction device. The trailer is equipped with a special mechanical device or hydraulic system inside, which can automatically unload goods under specific conditions. Self dumping trailers, with their efficient and convenient unloading methods, significantly improve transportation efficiency and reduce labor costs, and are widely used in the transportation of various heavy goods, bulk cargo, and special cargo.
2, Working principle of dump trailer
The working principle of a dump trailer mainly depends on its internal mechanical device or hydraulic system. Taking the most common hydraulic dump trailer as an example, its working principle is roughly as follows:
Power transmission: When the tractor is connected to the dump trailer and started, the engine provides power to the hydraulic system inside the trailer through the transmission system.
Hydraulic control: The hydraulic pump in the hydraulic system converts power into hydraulic energy, which is transmitted to various actuating components (such as oil cylinders) through hydraulic pipelines.
Lifting and unloading: In the cab, the operator sends commands through control handles or buttons to control the opening and closing of hydraulic valves, thereby driving the oil cylinder to perform telescopic movements. The extension and contraction of the oil cylinder drives the lifting mechanism of the trailer (such as the lifting arm, flipping plate, etc.) to work, so that the goods inside the trailer are lifted to a certain height and tilted or flipped, achieving automatic unloading.
Reset and Lock: After unloading is completed, the hydraulic system resets the lifting mechanism through reverse operation and locks the trailer in its original position, preparing for the next transportation operation.
3, Application areas of dump trucks
Self dumping trailers are widely used in the following fields due to their efficient and convenient unloading characteristics:
Mining and Construction: In mining and construction sites, dump trucks are commonly used to transport bulk materials such as sand, gravel, ore, and earthwork. Its strong load-bearing capacity and fast unloading speed greatly improve construction efficiency.
Agriculture: In agricultural production, dump trucks are used to transport agricultural inputs such as grain, fertilizers, seeds, etc. Its automated unloading method reduces the labor intensity of farmers and improves agricultural production efficiency.
Garbage disposal: In the field of urban garbage disposal, dump trucks are used to collect and transport garbage to treatment centers. The well sealed carriage design effectively prevents garbage scattering and odor diffusion, protecting the urban environment.
Special cargo transportation: For certain special goods (such as chemical raw materials, dangerous goods, etc.), dump trucks ensure safety and stability during transportation through customized design and safety measures.