Concrete pump truck

Abstract

The invention relates to a concrete pump truck which comprises a main body, a frame, a pumping mechanism, a power mechanism and a steering mechanism, wherein the frame comprises two U-shaped girders which are arranged horizontally; the openings of the two U-shaped girders are opposite to each other and across a crossbeam assembly between the two U-shaped girders; the crossbeam assembly comprises a first crossbeam, a second crossbeam and a third crossbeam; and the center lines of the first crossbeam, the second crossbeam and the third crossbeam are respectively positioned above, on and below the horizontal planes on which the U-shaped crossbeams are located; and the pumping mechanism is horizontally installed in the space erected between the first crossbeam and the third crossbeam. The pumping mechanism of the invention is horizontally arranged, so the pumping mechanism can intake the concrete with higher efficiency, thereby improving the performance of the concrete pump; the U-shaped girders and the running system of the concrete pump truck share common girders, thereby reducing the weight and the cost; and the restriction to the inner space of the girders is reduced, thereby deriving more autotype concrete pump models.

Description

technical field [0001] The invention relates to a concrete pump truck without an automobile chassis. Background technique [0002] At present, when developing high-rise buildings in a community, usually several buildings are constructed at the same time on one construction site. Therefore, in order to save equipment investment, it is hoped that one concrete pump can solve the concrete delivery problem of all high-rise buildings on the site. The existing vehicle-mounted concrete pump The pump came into being, and it pumps concrete for each building by moving between tall buildings. [0003] The vehicle-mounted concrete pump is realized by directly erecting the pumping mechanism and the hydraulic system driving the concrete pump on the chassis of the vehicle. Such as figure 1 Shown: Because the layout of the girders of the car chassis, the drive shaft and the rear axle are basically fixed, the girders of the car chassis are usually buckled by two U-shaped girders, and multip...

AI Technical Summary

Problems solved by technology

[0005] 1) Because the concrete concrete cylinder and the main oil cylinder are placed obliquely, under the action of gravity, the concrete needs to be sucked upwards, which affects the efficiency of sucking concrete;

[0006] 2) Because the existing vehicle-mounted pump uses a ready-made car chassis instead of a special-purpose chassis, some unnecessary additional costs are added, such as: the registration fee, insurance premium and car scrapping period that must be spent with the car chassis;

[0007] 3) The girder of the concrete pump is repeated with the girder of the automobile chassis, which not only increases the weight but also increases the cost; the length direction dimension of the automobile chassis girder is variable, but the width direction dimension cannot be changed (the distance between the girders of the automobile chassis is 860-870MM, which is Unified), this limitation makes the chassis of the small-sized movable concrete pump relatively high in cost compared to the whole machine, and the ultra-large movable concrete pump cannot be realized, which seriously hinders the expansion of the model of the movable concrete pump

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