Viscous material conveying pipe supporting device, supporting structure and concrete conveying machinery

Abstract

The invention provides a viscous material conveying pipe supporting device which comprises a fixed supporting part and a conveying pipe mounting part (1). The fixed supporting part comprises a fixed section (3) and a supporting section (2), the conveying pipe mounting part (1) is connected on the supporting section (2), a deflection enhancement structure is formed on the supporting section (2) and characterized in that a bend with at least two inflection points is formed on the supporting section (2), the inflection points are basically positioned in the same plane, or the size of the cross section of the supporting section (2) along a first direction is the largest, the size of the cross section of the supporting section (2) along a second direction is the smallest, and the first direction is perpendicular to the section direction. In addition, the invention further provides a viscous material conveying pipe supporting structure and concrete conveying machinery. The viscous material conveying pipe supporting device has a more reasonable and scientific stress structure according to the stress principle in the material conveying process of a viscous material conveying pipe, so that stress concentration is avoided, and the service life of the conveying pipe supporting structure is prolonged.

Description

technical field [0001] The invention relates to a support device for a viscous material conveying pipe, which can be used to support a viscous material conveying pipe, such as a concrete conveying pipe (ie, a concrete pipe). Further, the present invention relates to a viscous material conveying pipe support structure comprising the viscous material conveying pipe support device. In addition, the present invention also relates to a concrete conveying machine, such as a concrete pump truck. Background technique [0002] Viscous material conveying machinery, such as concrete pump trucks and mortar distributing equipment, generally have a distributing boom, and viscous material conveying pipes (such as concrete pipes) are installed on the distributing boom through viscous material conveying pipe support devices. [0003] see figure 1 and figure 2 As shown, the support device for the viscous material conveying pipe in the prior art generally includes a supporting fixed pipe f...

AI Technical Summary

Problems solved by technology

[0005] the above figure 1 and figure 2 The disadvantages of the viscous material conveying pipe support device and its supporting structure in the prior art shown are obvious. The deflection stiffness of the support pipe section 2a of the above viscous material support device is basically the same in all directions, which leads to During the process of pipe conveying materials, the fixed pipe section 3a of the viscous material conveying pipe support device is at the position where it is welded to the boom section of the cloth boom. Due to the large impact load of the material pumping, the stress concentration is obvious, and the arm of the boom The welds at joint joints are prone to cracking, which leads to a low service life of the viscous material conveying pipe support device, and even causes viscous material conveying machinery to malfunction, making it impossible to carry out cloth work

In addition, the flexural stiffness of the viscous material conveying pipe support structure around the x-axis and the y-axis is not ideal, which is not conducive to the optimization of the stiffness of the structure around the x-axis and the y-axis

[0006] In order to solve the above-mentioned technical defects, a boom system is disclosed in the prior art CN202139858U, which supports the viscous material conveying pipe through a set of support components, which actually distributes the stress by increasing the number of supports, not only Increase the number of supports, resulting in a more complex structure, increased weight, and the effect is not ideal

[0007] The improvement of the support device and support structure of the above-mentioned viscous material conveying pipe actually involves the study of fine structure and the analysis of the principle of force, but this field has not been able to find reasonable technical measures to solve the above-mentioned technical defects relatively effectively, and has been Improvement by using relatively extensive technical means similar to CN202139858U

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