Spare booms, boom units and pump trucks

Abstract

The invention discloses a standby boom (100) comprising a plurality of standby segments (1), a plurality of concrete tubes (2), and a plurality of segment support legs (3). The standby segments (1) are sequentially hinged end to end. The concrete tubes are connected to the standby segments correspondingly and are connected with one another in a detachable manner. The invention further provides a boom device comprising the standby boom. The invention further provides a pump truck comprising the boom device. The distribution range of the pump truck boom of the prior art can be widened effectively.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a spare boom, a boom device and a pump truck. Background technique [0002] In engineering construction, in order to transport concrete to the predetermined location, construction machinery and equipment such as concrete pump trucks are often used. Due to the limitation of the strength of the structural parts and the overturning requirements of the pump truck, the length of the boom of the same type of pump truck cannot be changed, so the horizontal distribution radius and distribution height of the pump truck are fixed. [0003] attached figure 1 It is a schematic diagram of the distribution range of the boom of the pump truck in the prior art. It can be seen that the horizontal cloth radius of the entire boom is 48 meters; the first boom section stands upright, and the cloth radius of the other boom sections is 38.33 meters; the first boom section and the second boom sect...

AI Technical Summary

Problems solved by technology

These two methods are time-consuming, labor-intensive, inefficient and costly

Moreover, the longer the total length of the jib, the higher the requirements on the construction site, and the technical difficulty of developing a pump truck with a longer jib is quite high.

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