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                            > ### **工程機械是裝備工業的重要組成部分。概括地說，凡土石方施工工程、路面建設與養護、流動式起重裝卸作業和各種建筑工程所需的綜合性機械化施工工程所必需的機械裝備，稱為工程機械。 工程機械“四輪一帶”中的四輪指的是驅動輪，導向輪，支重輪，托輪，一帶指的是履帶。它們直接關系到挖掘機的工作性能和行走性能，其重量及制造成本占到了挖掘機制造成本的四分之一。**

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### **本文主要寫關于四輪的機加工工藝流程及汲及到的問題。**
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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