What are the structural characteristics of the rear dump truck?
the structural characteristics of the rear dump truck
the rear dump truck is developed on the mature technology of semi trailer. There are three forms of unloading: single sided side unloading, double sided side unloading and rear unloading. So do you know what the structural characteristics of the rear dump truck are? Today I will give you a brief introduction.
According to the unloading method, the rear dump truck have various forms such as backward tilting, side tilting, three sided dumping, bottom dumping, and rear tilting when the cargo box is raised. Among them, the backward tilt is widely used. the rear dump truck is mainly composed of a hydraulic dumping mechanism, a carriage, a frame and its accessories.
The hydraulic dumping mechanism includes a small drive shaft, an oil pump, a lift valve, a hydraulic cylinder, a control device, a limit device, an oil tank and pipeline, and a lifting mechanism.
The longitudinal beam of the rear dump truck is welded by automatic submerged arc welding, the frame is shot blasted, the low cost beam of the carriage passes through, and the longitudinal welding becomes the whole vehicle with high structural strength. The hydraulic system realizes the integrated control of electricity, gas and liquid, and has the advantages of simple operation, flexible and consistent movements, safety and reliability.The carriage includes a front panel, a side panel, a rear door, a bottom panel, and an opening and closing mechanism. Subframe, dumping control device, accessories including safety strut, limit plate, lateral stabilizer, follower frame, quotation device, carriage safety restraint cable.
The rear dump truck mainly transports bulk and bulk goods such as sand, stone, soil, garbage, building materials, coal, ore, grain and agricultural products. Its major advantage is that it realizes the mechanization of unloading, thereby improving the efficiency of unloading, reducing labor intensity and saving labor.
The rear dump truck is a kind of truck. The truck with the automatic dumping device in the loading part has been widely used in the market. So what are the design standards of the rear dump truck:
the rear dump truck is a vehicle that unloads goods by itself by hydraulic or mechanical lift. The carriage of the rear dump truck is divided into two types: rearward tipping and sideward tipping. The movement of the piston rod is controlled by the control system. Backward tipping is more common. Pushing the piston rod makes the carriage tip over, and a few tipping in both directions.
Design standards for dump trucks: the rear dump truck box should be lifted and lowered smoothly, and no movement, collision and jamming are allowed; the maximum lift angle of the truck box is about 2° from the theoretical design value; under the condition of 10% overload, the truck boxes are respectively Lift 10° and 20°, stay for 5 minutes, and the self-lowering amount of the car shall not exceed 2.5°.
When using the dump truck, it is necessary to check whether the vehicle hoisting alarm and indicator light in the cab are effective, and the various working positions of the hoisting handle should be accurate and reliable; the pipelines and joints of the hydraulic working system are firm and leak-free, the oil circuit is unblocked, and the operation is free , there shall be no jamming phenomenon; whether the automatic locking and opening mechanism is flexible and effective, and the technical status of each department is kept in good condition.
The rear tipping dump truck is a special vehicle for short-distance conveying of materials with a tipping hopper. It is mainly used for short distance transportation of various bulk materials such as concrete, sand and gravel, earthwork, coal, ore, etc. in construction, water conservancy, road construction, and mining.