气缸套装配过程中由于预紧螺栓预紧力的大小及一致性等因素将导致缸套出现不同程度的失圆变形, 影响活塞环和缸套的配合特性, 导致柴油机整机性能和排放性能降低。因此本文开发基于激光位移传感器的分布孔径缸套形廓尺寸测量系统, 对柴油机缸套自由和预紧状态下的形廓尺寸进行了测量, 并与传统测量工具测量结果进行对比, 表现出较好的一致性, 为气缸套的设计及装配工艺提供一种有效的测试手段。

In assembly process of cylinder, some factors will cause deformation of cylinder. It affects the match of cylinder and piston ring, and reduces the performance of diesel. In this article, we designed a cylinder-shaped aperture dimensions measuring system based on laser displacement sensor. The dimensions of cylinder both in condition of freedom and preload were measured. Compared with measurement results by traditional measurement tools, it shows good consistency.