Boom device and concrete pump truck

Abstract

A boom device comprises multiple booms hinge-connected in sequence. A first boom is hinge-connected to a turntable of pumping machinery. The turntable is located in the middle of the pumping machinery. The first boom is placed upside down. A second boom is hinge-connected to the first boom and folded above the first boom. The second boom, the following booms, and the last boom all run through the body of the pumping machinery. The turntable is located in the middle of the pumping machinery, and the first boom is placed upside down and extends towards the tail or the cab of the pumping machinery, so that the second boom, the following booms, and the last boom can run through the body of the whole pumping machinery, that is, run from the cab of the pumping machinery along the length direction of the pumping machinery to the tail thereof, so as to realize arrangement of an ultra-long boom, and further increase the unfolded length of the whole boom device, thereby increasing the material distribution range thereof. A concrete pump truck comprising the boom device.

Description

technical field [0001] The invention relates to the technical field of concrete pumping, in particular to an arm support device. The present invention also relates to a concrete pump truck with the above boom device. Background technique [0002] With the rapid development of my country's economic construction, the market demand for construction machinery, especially concrete pump trucks, is increasing. [0003] The boom in the concrete pump truck is generally multi-section, and each section of the boom can be folded. During the working process of the concrete pump truck, the concrete needs to be transported to the designated position through the delivery pipe fixed on the boom, and as the delivery position changes, the boom needs to drive the delivery pipe to realize unfolding, folding and rotation. [0004] Such as figure 1 Shown is a schematic diagram of the structure of a typical concrete pump truck. The boom device of the concrete pump truck includes a turntable 1',...

AI Technical Summary

Problems solved by technology

Therefore, in this type of boom arrangement, the length of each section of the boom is limited. In order to increase the deployment length of the boom device, it is necessary to increase the number of sections of the boom; The space is limited, and the increase in the number of jib sections is limited

[0007] Under the current development trend of concrete pump trucks towards ultra-high pumping height and ultra-wide distribution range, the arrangement of booms in the prior art cannot satisfy the arrangement of ultra-long booms

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