Screw blade, feed divider having the screw blade and spreader thereof

Abstract

The invention discloses a helical vane used in the feed divider of a spreading machine, the helical vane comprises a first group of vanes and a second group of vanes, each group of vanes has at least two oppositely rotated vanes, the first group of vanes is arranged on a vane shaft on the left side of a feed dividing box, and the second group of vanes is arranged on a vane shaft on the right sideof the feed dividing box; a phase difference is formed between the oppositely rotated vanes of the first group of vanes; a phase difference is also formed between the oppositely rotated vanes of the second group of vanes; the first group of vanes comprises a first left-lateral vane and a first right-lateral vane; the second group of vanes comprises a second right-lateral vane and a second left-lateral vane; the first left-lateral vane and the second right-lateral vane are arranged respectively adjacent to the left and the right sides of the feed dividing box; as the oppositely rotated vanes of each group can carry out feed dividing to the two sides of the feed dividing box, and simultaneously the feed dividing also can be carried out to the bottom of the feed dividing box, thereby avoiding the isolation problem caused by the too concentrating of the coarse aggregates at the bottom part of the feed dividing box.

Description

technical field [0001] The invention relates to a helical blade of a material distributing device of a paver; the invention also relates to a material distributing device with the helical blade and a paver. Background technique [0002] In the process of construction and maintenance of highways and urban roads, asphalt or concrete pavers have been widely used at home and abroad to pave asphalt or concrete on the road surface. Due to the structural design and material distribution method of the paver distribution device , and the paver will cause the segregation problem of the road surface during the paving work, which seriously affects the quality of the road surface. [0003] The segregation problem of the pavement refers to the inhomogeneity of the main properties of the mixture in a certain area of ​​the pavement, thereby accelerating the damage of the pavement. During the paving process of the mixture, the coarse and fine aggregates of the mixture are unevenly distribut...

AI Technical Summary

Problems solved by technology

Equally, the left-handed blade 22a constantly rotates, and distributes materials to the right side of the material distribution box 1a ( figure 1 The direction shown by the middle arrow C2), the left-handed blade 22a will also produce grooves D2 on the road surface, and the generation of grooves will also cause segregation problems and affect the quality of the road surface

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