论文部分内容阅读
我国自从液压钻机的诞生,就伴随着有液压卡盘的出现,如XU—600型钻机,和XU—300型钻机,就是两种不同类型的液压卡盘,但是至今没有人对这个钻机中至关重要的部件进行过深入的研究,因而也始终存在着打滑和夹紧能力不够的问题,以致于采取一些迴避的方法解决。如,采用带卡槽的扁方或六方主动钻杆或者是在孔深以后采用升降机吊着钻具减压的方法,而我们的设计目标是以足够的夹紧能力夹住钻进用的一般圆钻杆,打到设计孔深。 应该说液压卡盘是钻机各部件中最关健也是最难,工作条件最恶劣的工作部件。它必须承受最大的轴向载荷,加压或者加力起拔,同时还要承受最大的迴转力矩,而且动作必须灵活,卡瓦松卡次数频繁,钻进一个300米深的孔,卡盘就需要经历大约1000次的松卡动作,
Since the birth of the hydraulic drilling rig in our country, hydraulic jacks have emerged. For example, the XU-600 drilling rig and the XU-300 drilling rig are two different types of hydraulic chuck. However, to date, Critical components have undergone intensive research, so there is always the problem of insufficient slipping and clamping capacity, so that some ways to avoid the solution. For example, the use of flat square or hexagonal active drill pipe with a slot or the method of using the hoist to drill the tool to reduce the pressure after the hole depth, and our design goal is to clamp the drilling with sufficient clamping ability Round drill rod, hit the design hole depth. It should be said that the hydraulic chuck is the most crucial component of the rig is the most difficult, the worst working conditions of the working parts. It must withstand the maximum axial load, pressure or force lifting, but also to bear the maximum torque, and the action must be flexible, frequent Cavalcade card, drilling a 300-meter-deep hole, the chuck You need to go through about 1000 times the pine card action,