浅论单桅杆液压伸缩井架的锁定装置

ON THE LOCKING SET OF EXPEND AND CONTRACT DERRICK HYDRAULIC AND WITH SINGLE MAST

以美国LTV公司65B车装钻机单桅液压伸缩式井架的锁定装置为例,讨论了锁定装置的功用、设计要求、基本构造、工作原理和操作程序等。在此基础上,研讨了该装置主要零件的受力分析和强度计算方法。还分析了加工制造精度、井架上、下段间的配合间隙以及两者的搭接长度对锁定精度的影响。最后,对美国LTV公司65B车装钻机钻塔锁定装置的机械操纵方法提出了改为液压操纵的意见。

Making the type of locking set of 65B drilling machine of the LTV company in U. S. A. a example, some problems about the locking set of expend and contract derrick hydraulic and with single mast were discussed, such as its use, designing requirements, basic structure, working principles, operating procedures and so on. The analysis about the power which the main part of this set suffers and the ways of calculating the strength of the main part were studied. The precision of making the locking set and the chink between the upper and lower parts of the derrick as well as the effects of the length of the connecting part of above two parts on the locking precision were also studied. Finally, a piece of advice was given, that is to change the mechanical operation of the locking set of 65B drilling machine of the LTV company of U. S. A. into hydraulic operation.