Telescopic and bendable pump truck arm support mechanism

Abstract

The invention discloses a telescopic and bendable pump truck arm support mechanism. A pump truck provided by the invention is provided with three sections of arm supports, wherein the three sections of arm supports fall on a chassis bracket of the pump truck after being folded in turn. A plurality of telescopic arms are arranged in each section of arm support; 1 to 3 telescopic arms are arranged in the first section of arm support; 1 to 2 telescopic arms are arranged in the second section of arm support; and 1 to 2 telescopic arms are arranged in the third section of arm support. Power is provided for the telescopic arms in each arm support by a multi-stage oil cylinder; and a material distributing rod also adopts a multi-stage telescopic mode. When the mechanism works, a lifting oil cylinder is operated first to unfold arm sections and then a telescopic oil cylinder is operated to make the material distributing rod reach a working position. In the telescopic and bendable pump truck arm support mechanism, the combination of a telescopic mode and a folding mode is adopted, so that the total number of suspension arms of the arm supports reaches 6 to 8, and working amplitude and working height are greatly increased; and when the telescopic and bendable pump truck arm support mechanism works in a short distance, because the height of a highest point of the arm support is reduced, energy is saved. Moreover, a manual valve is arranged at the extreme end of the material distributing rod, the loss of concrete can be reduced by closing the valve when the material distributing rod is moved.

Description

Technical field: [0001] It belongs to the category of concrete transportation machinery. Background technique: [0002] Common pump truck booms generally adopt the technology of multiple folding. When the number of boom sections reaches 6, if the number of boom sections is increased, the overall structure is too complicated and difficult to manipulate, so it is difficult to increase the total length of the boom. It limits the working range of the pump truck, and when the pumping height of the pump truck reaches 60 meters, it is difficult to increase it. Invention content: [0003] In order to increase the working range of the pump truck and not make the manipulation more complicated. Using the jib provided by the invention can increase the working range without increasing the difficulty of manipulation. [0004] The technical scheme for solving the problem of the present invention is: the boom frame is composed of 3 boom sections, 1-3 telescopic booms are arranged in the...

AI Technical Summary

Problems solved by technology

[0002] Common pump truck booms generally adopt the technology of multiple folding. When the number of boom sections reaches 6, if the number of boom sections is increased, the overall structure is too complicated and difficult to manipulate, so it is difficult to increase the total length of the boom. It limits the working range of the pump truck. When the pumping height of the pump truck reaches 60 meters, it is difficult to increase it.

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