目的 为了提高我国鲜鸡蛋分机加工的效率和质量，需设计一台高效、稳定的鸡蛋分级包装生产线。方法 根据鸡蛋分级加工包装的具体需求，基于凸轮齿轮等机械结构的传动原理，设计一台鸡蛋分级包装生产线，此鸡蛋分级包装生产线由一台1 000W的电动机驱动，通过链及齿轮等传动，实现鸡蛋的称量、分级、装托等工序。结果 按设计加工完成后，安装样机并进行实验，得出此鸡蛋分级包装系统测量误差正确分级率为97%，对100枚鸡蛋重复20次实验仅有3枚破损，破损率较低。经测试，其生产率最高为35 000枚/h。结论 此鸡蛋分级包装系统设计达到了设计要求，符合市场需求，为国内鸡蛋初加工提供了一种技术方案。

The work aims to design an efficient and stable egg grading and packaging production line to improve the efficiency and quality of fresh egg processing by extension machine in China. According to the specific requirements of graded processing and packaging of eggs and based on the transmission principle of CAM gear and other mechanical structures, an egg grading and packaging production line was designed. The egg grading and packaging production line was actuated by a 1 000 W motor and was driven by chains and gears to realize the procedures of weighing, grading and loading of eggs. After processing according to the design, the prototype was installed and the experiment was carried out. It was found that the correct grading rate of the measurement error of the egg grading and packaging system was 97%, and 3 eggs were damaged after 20 repeated experiments on 100 eggs, with a low breakage rate. The highest productivity was 35 000 eggs per hour after testing. The egg grading and packaging system designed meets the design requirements, meets the market demand, and provides a technical solution for graded processing of eggs in China.