Technical gazette, Vol. 27 No. 5, 2020.
Review article
https://doi.org/10.17559/TV-20191118073717
The Connecting Method for the Spiral Blades of Concrete Mixer Truck
Xinhui Liu
; School of Mechanical and Aerospace Engineering, Jilin University, Changchun, 130025, China
Yanhong Song
; School of Mechanical and Aerospace Engineering, Jilin University, Changchun, 130025, China; School of Engineering, Changchun Normal University, Changchun, 130031, China
Feng Ren*
; School of Mechanical and Aerospace Engineering, Jilin University, Changchun, 130025, China; School of Engineering, Changchun Normal University, Changchun, 130031, China
Jinshi Chen
; School of Mechanical and Aerospace Engineering, Jilin University, Changchun, 130025, China
Min Zhao
; Jilin University, Changchun, 130025, China
Abstract
For the spiral blade of the concrete mixing tank of concrete mixer truck, in order to satisfy the stirring and discharging performance, the installation angle and helix angle of the blade should be assigned according to their segmentation function. Due to the different helix angles and the installation tilt angles, a junction gap of blade is formed at the joint, resulting in the severe silting of discharge or the uneven agitation. We put forward a more reasonable solution by using the MFG (method of fitting gradient) to solve the gap connection of spiral blades. The MFG that can reduce the discharging residual rate of the mixing material has been verified by experiments and applied to actual mass production. We also make the coupling simulation of Multi-Physics Field based on simulation software 17-STARCCM+® to visually verify the scientificity of design and study the complex stresses distribution inside the actual mixing tank. Finally, we provide an up-to-date reference for the design of spiral logarithmic blade, solving the problem of the gap at the traditional spiral-blade connection.
Keywords
experimental validation; junction gap; MFG; multi-physics field coupling; spiral blade
Hrčak ID:
244865
URI
Publication date:
17.10.2020.
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