近日，由徐州回转支承公司开发研制的双回转斜滚道式回转支承获国家专利（专利号：982270224）。该支承的结构及功能都属国内首创，其加工工艺及制造精度达到国内同行业领先水平。主要用于需调整上下平面之间的夹角方向的装置（如高空作业车）上，取代了以往繁琐的调整机构，使 Recently, the double-turn bevel track slewing bearing developed by Xuzhou Slewing Bearing Company won the national patent (Patent No .: 982270224). The structure and function of the support are the first domestic, its processing technology and manufacturing precision to achieve the leading domestic industry. Mainly used to adjust the angle between the upper and lower plane direction of the device (such as aerial vehicles), replacing the cumbersome adjustment mechanism in the past, so that