摘要
O形密封圈和密封圈槽尺寸的合理匹配是延长密封圈无泄漏密封寿命的必要保证。据此提出一种选配两者尺寸的理论计算方法 ,并以Y34 1— 148注水封隔器所选密封圈的计算为例说明 ,根据不同的密封圈可以计算出相应的密封圈槽尺寸。为保证密封圈长期有效地工作 ,还必须合理选择其压缩率、拉伸量和孔、轴配合精度等相关参数。选取压缩率时 ,应考虑有足够的密封面接触压力、尽量小的摩擦力和避免密封圈的永久性变形。顾及到一般试制车间的加工水平和井下工具主要是静密封的状况 ,建议密封面的轴。
Rational matching of O-rings and O-ring grooves is of great importance to prolonging the service life of O-rings. A method for selecting O-ring was presented. The sizes of the O-ring groove can be calculated according to various O-rings. To ensure long-term and effective work of the ring, the compressibility, tensile dimension and bore-shaft matching accuracy should be properly selected.
出处
《石油机械》
北大核心
2000年第5期49-51,0,共3页
China Petroleum Machinery
