Concrete mixer truck

Abstract

The invention provides a concrete mixer truck. The concrete mixer truck comprises a truck body and a rotary drum, and the rotary drum is sleeved with a loop and is matched with the loop through a circular groove to rotate in the loop around the axis of the rotary drum. The loop is fixed onto a horizontal rotating plate which is arranged on the truck body, and the horizontal rotating plate is capable of rotating around own axis and has a rotation pretension force. The axis of the horizontal rotating plate and the axis of the rotary drum are intersected, and an intersection is positioned between the center of gravity of the rotary drum and the end, close to a truck head, of the rotary drum. When the truck body is in a static state, an included angle between the axis of the rotary drum and a median section of the truck body is 15-30 degrees. The peripheral wall of the rotary drum is provided with a gear ring which is driven by a driving mechanism fixed to the loop. The concrete mixer truck has the advantages that safety in sudden brake can be evidently improved, and consequently probability of car accidents is reduced.

Description

technical field [0001] The invention relates to the field of engineering vehicles, in particular to a mixer truck for transporting concrete. Background technique [0002] The concrete transport mixer truck is a common engineering vehicle, which includes a body body and a concrete drum; the concrete drum is symmetrical about the longitudinal section of the body body; the concrete drum is driven by a driving mechanism so that it can rotate around its own axis , when rotating forward, the helical blades in the drum continuously mix the concrete, and when rotating reversely, the concrete flows out from the end of the drum; the characteristic of the concrete drum of this kind of transport mixer truck is that it only has 1 degree of freedom of rotation, and the other 5 The three degrees of freedom (3 translational degrees of freedom and 2 rotational degrees of freedom) are fixed; this makes a prominent disadvantage of this kind of transport mixer truck is that it cannot brake su...

AI Technical Summary

Problems solved by technology

[0002] The concrete transport mixer truck is a common engineering vehicle, which includes a body body and a concrete drum; the concrete drum is symmetrical about the longitudinal section of the body body; the concrete drum is driven by a driving mechanism so that it can rotate around its own axis , when rotating forward, the helical blades in the drum continuously mix the concrete, and when rotating reversely, the concrete flows out from the end of the drum; the characteristic of the concrete drum of this kind of transport mixer truck is that it only has 1 degree of freedom of rotation, and the other 5 The three degrees of freedom (3 translational degrees of freedom and 2 rotational degrees of freedom) are fixed; this makes a prominent disadvantage of this kind of transport mixer truck is that it cannot brake suddenly, because there is a large mass of concrete in the drum, once If you brake suddenly, due to the huge inertia of the rotating drum, it is very likely to push forward directly, and the front of the car will be pushed flat directly, and the driver will definitely die; In the event of an accident, the brakes are basically not considered, which directly leads to a higher probability of accidents with this type of transport mixer truck, and the fatal rate of accidents is extremely high

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