论文部分内容阅读
作为复合天轮式长冲程抽油机柔性传动件的钢丝绳，在装机试验初期的使用寿命只有400h左右。针对抽丝、断股、磨扁和剪断等失效形式，在选材、结构设计和加工制造等方面，采取一系列措施，改善了钢丝绳的抗疲劳能力，使用寿命已达到12000h以上。这些措施包括选用适当强度和直径的钢丝绳，以改善其受力状态；设计合理的天轮直径尺寸，使其与钢丝绳直径之比在50～60之间；在轮缘上镶嵌橡胶衬垫，以降低接触压力，以及钢丝绳通过销轴与横梁联接，使钢丝绳处于受拉状态等。
As a compound day wheeled long-stroke pumping unit flexible transmission wire rope, installed in the initial test of the service life of only about 400h. Aiming at the failure forms such as drawing, breaking, flattening and shearing, a series of measures have been taken in material selection, structural design and manufacturing to improve the anti-fatigue ability of steel wire rope, and the service life has reached more than 12000h. These measures include the use of appropriate strength and diameter of the wire rope to improve its stress state; design reasonable size of the diameter of the day wheel so that the diameter of the wire rope ratio between 50 to 60; inlaid with rubber gasket on the rim to Reduce the contact pressure, and the wire rope is connected with the cross beam through the pin so that the wire rope is in a state of tension.