浅议推力头孔轴配合标准

Discuss of Thrust Top Hole and Shaft Conjugation Criterion

为提高大型泵站机组的安装质量,分析了推力头的结构与作用,给出了推力头孔轴配合标准。依据实践经验,提出了不同看法:推力头孔轴配合有间隙不好,过盈过大也不行,轻微过盈配合最好。

In order to improve the installation quality of large pump station, the structure and role of thrusttop is analyzed. The conjugation criterion of thrust top hole and shaft is exponded. According to practice andexperience, difference viewpoint is presented. There is gap between thrust top hole and shaft is adverse. Holesize too small is also adverse. Hole size small a little than shaft is appropriate.