就地冷再生是指利用瀝青再生設備將舊瀝青路面材料就地打碎，并加入適當的瀝青及改性材料后拌和壓實，以舊路面材料為主修筑道路的技術。而路面冷再生機是一種高效、環保的道路施工機械，主要用于舊瀝青路面的再生作業，其通過對舊瀝青路面銑刨、破碎，然后與水泥、水、乳化瀝青等粘結劑按一定比例拌和均勻，形成的混合料作為新路面的路基。

In situ cold recycling refers to the technology of using asphalt recycling equipment to crush old asphalt pavement materials on site, adding appropriate asphalt and modified materials, mixing and compacting them, and building roads mainly with old pavement materials. The road surface cold regeneration machine is an efficient and environmentally friendly road construction machinery, mainly used for the regeneration of old asphalt pavement. It milling and crushing the old asphalt pavement, and then mixing it evenly with cement, water, emulsified asphalt and other binders in a certain proportion to form a mixture as the roadbed of the new pavement.

轉子是冷再生機的工作部件，用于對路面進行銑刨、拌和，對整機作業效率和新生混合料的質量起著至關重要的影響。轉子切削作業是在封閉的銑刨室內完成的，轉子兩端與銑刨室之間容易堆積物料，這使得轉子旋轉過程中邊刀始終與堆積的物料產生摩擦，造成了邊刀磨損遠快于主銑刀的現象，邊刀磨損到一定程度后，整個轉子就無法工作，而此時主銑刀并未損壞，這造成了資源的極大浪費。

The rotor is the working component of the cold regeneration machine, used for milling and mixing the road surface, which plays a crucial role in the overall efficiency of the machine and the quality of the new mixture. The rotor cutting operation is completed in a closed milling chamber, and materials are easily accumulated between the two ends of the rotor and the milling chamber. This causes friction between the edge cutter and the accumulated materials during the rotation of the rotor, resulting in the phenomenon that the edge cutter wears much faster than the main milling cutter. When the edge cutter wears to a certain extent, the entire rotor cannot work, and at this time, the main milling cutter is not damaged, causing a great waste of resources.

現有的冷再生轉子的邊刀是由中間部分刀具按螺旋線規律延伸而來，沒有考慮到邊刀區域切削工況與中間部分刀具銑削工況的差異，邊刀區域的切削工況往往比中間部分刀具惡劣，并且兩側邊刀直接焊接至轉子本體上，當邊刀磨損失效后，整個轉子只能整體報廢處理，造成了資源浪費。另外，現有的冷再生轉子在邊刀區域布置一把側面銑削工具，在一定程度上削弱了路槽對邊刀座的磨損，但這對邊刀的保護十分有限，邊刀座磨損依然嚴重。目前現有技術僅考慮了轉子邊刀的切削功能、轉子側面的防護效果，無法解決邊刀磨損過快的問題。

The edge cutting of the existing cold regeneration rotor is extended from the middle part of the cutting tool according to the spiral pattern, without considering the difference between the cutting conditions in the edge cutting area and the milling conditions of the middle part of the cutting tool. The cutting conditions in the edge cutting area are often worse than those in the middle part of the cutting tool, and the edge cutting on both sides are directly welded to the rotor body. When the edge cutting tool wears out and fails, the entire rotor can only be scrapped as a whole, resulting in resource waste. In addition, the existing cold regeneration rotor is equipped with a side milling tool in the edge cutting area, which to some extent weakens the wear of the road groove on the edge cutting seat. However, this protection for the edge cutting is very limited, and the wear of the edge cutting seat is still severe. At present, the existing technology only considers the cutting function of the rotor edge cutter and the protective effect on the rotor side, which cannot solve the problem of rapid wear of the edge cutter.

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