A wear-reducing spiral distributing vane and a method of operation thereof

By designing multiple grooves on the spiral feeding blades to store materials, a material-to-material wear pattern is achieved, which solves the problem of severe blade wear, improves wear resistance and conveying efficiency, and reduces costs.

CN117902244BActive Publication Date: 2026-06-30JIANGSU XCMG CONSTRUCTION MACHINERY RESEARCH INSTITUTE LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU XCMG CONSTRUCTION MACHINERY RESEARCH INSTITUTE LTD
Filing Date
2024-01-31
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The spiral blades of existing ultra-wide and ultra-thick road pavers suffer severe wear when paving ultra-thick and ultra-wide roads, especially at the blade edges, leading to material waste and increased costs. Existing methods to improve wear resistance are costly and ineffective.

Method used

A wear-reducing spiral material distribution blade is designed by creating multiple wear-reducing grooves between the edge and center of the blade body. The width and depth of the grooves decrease from the edge to the center, which is used to store material particles of different sizes, reduce stress unevenness, and realize material-to-material wear instead of material wear on the blade surface.

Benefits of technology

It improves the wear resistance of the blades, reduces manufacturing costs, avoids the risk of parts cracking, improves conveying efficiency, and solves the efficiency and cost problems of traditional methods.

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Abstract

This invention discloses a friction-reducing spiral material distribution blade and its working method, comprising: a blade body, and multiple friction-reducing grooves formed between the edge and center of the blade body; the width and depth of the multiple friction-reducing grooves decrease from the edge of the blade body to the center; wherein, the friction-reducing grooves near the edge of the blade body are used to store large-sized wear particles, and the friction-reducing grooves near the center of the blade body are used to store small-sized material particles; the spacing between the friction-reducing grooves near the edge of the blade body and adjacent friction-reducing grooves is larger than the spacing between the friction-reducing grooves near the center of the blade body and adjacent friction-reducing grooves, in order to correspond to the wear stress generated by different material particles and reduce the unevenness of stress on the blade surface. This invention uses a groove structure to store materials, realizing the wear patterns between materials, thereby improving its wear resistance, solving the problems of efficiency, cost, and risk caused by the traditional need to add extra processes to improve wear resistance, and balancing the stress on the blade surface to improve the blade transmission efficiency.
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