dump semi-trailer

Abstract

The invention relates to a self-unloading semi-trailer, which includes a vehicle frame, two longitudinal beams and a plurality of cross beams, a tank-type compartment including an arc-shaped plate connected with an upper wing plate, and a front column and a rear column connected between the longitudinal beam and the arc-shaped plate , there is a front baffle between the two front columns, and a rear door between the two rear columns. The chain type unloading mechanism includes a plurality of chain guide rails arranged at intervals along the length direction of the beam. There is a chain on the chain guide rail, and a The driving sprocket has a driven sprocket at the other end, the driving sprocket is set on the driving shaft, the driving shaft is connected to the motor, and the chain is provided with a plurality of conveyor belts covering it in sequence, and one end of the conveyor belt is detachably set on the chain The other end is a free end. The chain self-lubricating system includes an oil supply mechanism for supplying lubricating oil. The oil supply mechanism is connected with the lubricating actuator, and the lubricating actuator lubricates the chain. It has the advantages of reasonable structural design, high structural strength, convenient maintenance, hidden design of rear door opening and closing mechanism, and self-locking rear door.

Description

Technical field: [0001] The invention relates to the technical field of bulk cargo transportation equipment, in particular to a self-unloading semi-trailer. Background technique: [0002] Dump semi-trailer is mainly used for the transportation of grain, ore, coal, steel and other bulk cargo. The self-unloading semi-trailer mainly includes a frame, with compartments on both sides of the frame, a chain unloading mechanism for unloading on the frame, a front baffle at the front of the compartment, a rear door at the rear, and a suspension under the frame. frame and wheels. Although the existing dump semi-trailer can basically meet the transportation requirements, there are some prominent problems in actual use. First, the structural strength needs to be improved. The structural strength of the dump semi-trailer mainly depends on the frame and compartment. As well as the connection between the frame and the compartment, most of the longitudinal beams in the existing frame adopt...

AI Technical Summary

Problems solved by technology

The self-unloading semi-trailer mainly includes a frame, with compartments on both sides of the frame, a chain unloading mechanism for unloading on the frame, a front baffle at the front of the compartment, a rear door at the rear, and a suspension under the frame. frame and wheels. Although the existing dump semi-trailer can basically meet the transportation requirements, there are some prominent problems in actual use. First, the structural strength needs to be improved. The structural strength of the dump semi-trailer mainly depends on the frame and compartment. As well as the connection between the frame and the compartment, most of the longitudinal beams in the existing frame adopt a C-shaped structure, and this structure has a general load-bearing capacity and is easy to deform under a large impact and load. In addition, the existing compartment mainly Using flat plate or corrugated board, this kind of carriage structure design has poor impact resistance and extrusion ability, and the carriage is easily deformed after long-term use, resulting in open welding between the carriage and the frame

The existing structural design of the frame and carriage leads to the problem of deformation of the frame and / or carriage during actual use, and once the frame and / or carriage deforms, it is easy to cause the weld to open. We all know the structure of the entire carriage The strength is mainly achieved by welding connection, so open welding seriously affects the safety of the whole vehicle. In addition, the deformation of the longitudinal beam in the frame will also cause the gap between the conveyor belt and the longitudinal beam to increase, causing the material to flow from the conveyor belt to the longitudinal beam. leak in the gap between

The second is that the maintenance and repair of the chain unloading mechanism is inconvenient. Since the chain unloading mechanism in the self-unloading semi-trailer is set at the bottom of the compartment, the chain and the conveyor belt on it must bear the impact from the materials in the entire compartment and have to be dragged. Animal material is unloaded in translation. This special working environment makes the chain easily damaged. Therefore, it is very important for the daily maintenance and repair of the chain. However, the existing technical means mainly rely on manual lubrication and maintenance, resulting in untimely maintenance of the chain. poor effect

In addition, all conveyor belts need to be dismantled during chain maintenance, but the existing conveyor belts are mainly installed on beams with multiple bolts, and beams are welded to chains, so hundreds of bolts and nuts need to be disassembled every time the conveyor belt is disassembled. The operation is very cumbersome

The third is that the existing rear door opening and closing mechanism is exposed to the outside. Due to the poor working environment of the self-unloading semi-trailer, the oil cylinder is easily polluted. In addition, the existing rear door opening and closing mechanism has no self-locking function, resulting in mediocre reliability when the rear door is closed.

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