Concrete pump truck

Abstract

The invention discloses a concrete pump truck which comprises an underpan and upper loading. The upper loading comprises a boom system and middle components arranged between the underpan and the boom system. The concrete pump concrete is characterized in that the underpan is rotatably connected with the middle components, and the gravity of the underpan and/or the middle components deviates from the rotation central line of the underpan and the middle components. Under the condition of not adding an additional counterweight, the concrete pump truck uses the underpan and/or the middle components of the pump truck as the counterweight to flexibly adjust the gravity of the pump truck to increase the stability of the pump truck. After the gravity is adjusted, a support area needed is reduced, and therefore the length of the stretching-out parts of the support legs of the pump truck can be effectively reduced, and accordingly the occupied construction site space of the support legs is reduced. Or, under the condition that the length of the support legs of the pump truck is insufficient, a truck body is prevented from turning over. Besides, due to the fact that the length of the support legs of the pump truck can be shortened, producing cost can be reduced, and the weight of the integral truck is reduced.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a concrete pump truck. Background technique [0002] The concrete pump truck includes a chassis and a bodywork, and the bodywork includes a fixed turret and a jib system. The fixed turret is fixed on the chassis, the side of the fixed turret is used to connect the outriggers, a slewing mechanism is set above the fixed turret, the boom system is set on the turntable, the slewing mechanism drives the turntable to rotate relative to the fixed turret, and then drives The boom rotates relative to the chassis. [0003] When the concrete pump truck is in operation, it mainly relies on the outriggers to support it on the ground. The support points of the outriggers are connected to form the support surface of the concrete pump truck. . When the boom is longer and the slewing speed is faster, the center of gravity trajectory of the pump truck has a larger radius (the cent...

AI Technical Summary

Problems solved by technology

[0004] However, if the outriggers of the pump truck extend a long distance, it will inevitably occupy a larger site. In the case of limited construction sites, the outriggers of the pump truck cannot be extended according to the stability requirements, and the stability requirements of the vehicle body cannot be met.

In addition, since the stability depends to a certain extent on the length of the outriggers, it is necessary to process longer outriggers, which increases the weight of the car body and the cost of production

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