石油钻井机刹车块磨损实验及力学性能分析

Wear Test and Mechanical Property Analysis of Brake Block of Oil Drilling Machine

在石油钻井操作中,刹车系统必须频繁地执行整体制动,这一过程中刹车块快速地将能量转化为热能,导致其表面温度剧烈升高,因此刹车块的耐磨和抗热退化能力对于维持系统的稳定性和安全性至关重要。对比在相同配方条件下添加玻璃纤维和石棉两种刹车块的耐磨性和热稳定性表现,找出性能更优的刹车块制作方法。在130~170 N的载荷和200 r/min速度下进行测试,结果表明,虽然两者的摩擦系数和磨损率的增长趋势相似,但在高负荷和持续摩擦环境中,玻璃纤维增强材料展现了更高的性能稳定性和更长的寿命,说明其在提高系统可靠性和降低长期维护成本方面潜力更大。

In oil drilling operations,the brake system must frequently perform integral braking,in which the brake block rapidly converts energy into heat,resulting in a dramatic increase in its surface temperature.Therefore,the wear resistance and thermal degradation resistance of the brake block are crucial to maintain the stability and safety of the system.The study compares the wear resistance and thermal stability of two brake blocks with glass fiber and asbestos under the same formula,and finds a better brake block manufacturing method.Tests are performed at loads of 130 to 170 N and speeds of 200 r/min.The results show that although the friction coefficient and wear rate have similar growth trends,glass fiber reinforced materials show greater performance stability and longer life in high load and continuous friction environments,indicating greater potential to improve system reliability and reduce long-term maintenance costs.