Double-carriage self-discharging semitrailer

Abstract

The invention discloses a double-carriage self-discharging semitrailer, which mainly consists of a frame, a supporting device, a wheel device, a front carriage, a rear carriage, a front carriage lifting mechanism and a rear carriage lifting mechanism, wherein the front carriage and the rear carriage are arranged on the frame and driven by a combined lifting mechanism respectively; the front carriage lifting mechanism is in a double-cylinder web placement mode and in left and right bidirectional lateral discharging; the rear carriage lifting mechanism is in a single-cylinder front push connecting rod combined rear discharging mode; and the hydraulic systems of the front and rear carriage lifting mechanisms are in combined control. The double-carriage self-discharging semitrailer is stressed uniformly, has low deformation and good lateral stability, can be used under various complex working conditions, and basically can avoid the turnover accidents caused by the deformation of the frame. Moreover, an auxiliary shifting device is not needed at the tail of the semitrailer, and all operation processes are completed in the cab of the tractor, so the safety performance is high. Meanwhile, the semitrailer has good passing property and can be used in the road conditions with great gradient.

Description

technical field [0001] The invention relates to a double compartment self-unloading semi-trailer. Background technique [0002] The lifting mechanism of the traditional dump semi-trailer has a single-cylinder front type (such as figure 1 ), double-cylinder mid-mounted type (such as figure 2 ), multi-cylinder abdominal type (such as image 3 ) in three forms. [0003] The single-cylinder front-mounted and double-cylinder mid-mounted lifting mechanisms are usually multi-section cylinders. Due to the influence of the stroke of the oil cylinder, the body of this type of car cannot be made long; It is difficult to unload at one time, and it needs to be unloaded twice or unloaded while driving at a slow speed. This can easily lead to accidental rollover accidents and aggravate the damage to the oil cylinder. [0004] The advantage of the multi-cylinder belly-mounted structure is that it can unload goods on both sides, which is not restricted by the site and is convenient for...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a double-compartment self-unloading semi-trailer, which solves the problem that the single-cylinder front-mounted and double-cylinder mid-mounted lifting mechanisms are prone to accidental rollover accidents and aggravates the damage of the oil cylinder, and at the same time solves the problem of multi-cylinder belly The built-in structure requires manual or mechanical cleaning of the goods, increasing costs and low loading and unloading efficiency

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