Taper thread installation method and device for raising drilling rig

Abstract

A method and device for installing taper threads of a raise drilling rig, relating to the technical field of installation of raise drilling rigs. The method for installing taper threads of a raise drilling rig is used for installing a power head, a ratchet sleeve, and a load-bearing joint. device, horizontal guiding device, longitudinal lifting device. The load-bearing joint is manually rotated during the rising process. During manual rotation, it can be judged whether the contact between the load-bearing joint and the thread of the power head is normal according to the resistance of the rotation force. If the problem is found in time, the hydraulic cylinder and the force rod should be adjusted to make the load-bearing joint and the thread of the power head The contact is normal, thereby preventing damage to the workpiece, and the movement of the ratchet sleeve to the right below the power head is supported by a lateral guide device, and the jacking of the ratchet sleeve is carried out using a hydraulic cylinder, which does not require manpower for movement and jacking, saving a lot of labor costs.

Description

technical field [0001] The invention relates to the technical field of raising drilling rig installation, in particular to a method and device for installing a raised drilling rig with taper threads. Background technique [0002] The most difficult thing in the installation process of the raise drilling rig is the installation of the power head 30, the ratchet sleeve 10, and the bearing joint 20, such as figure 1 As shown, the ratchet sleeve 10 is sleeved on the bearing joint 20, and the ratchet sleeve 10 is coaxial and concentric with the bearing joint 20. The ratchet sleeve 10 is placed on the bearing joint 20 by its own gravity, and the inner wall of the top of the ratchet sleeve 10 is provided with a ring of teeth. The bar is the first rack, and the top of the bearing joint 20 is provided with a circle of external threads; the power head 30 is arranged on the fixing device 40 that comes with the raise drilling rig, and the fixing device 40 includes a base 41, two lifting...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned installation method requires high proficiency and skills of the operator, because the ratchet sleeve is assembled on the outside of the load-bearing joint and the main shaft to carry the process of jacking up the joint and screwing in the thread, which cannot be seen by the operator, which belongs to the state of blind installation. The equipment comes with The torque generated by the hydraulic motor driving the power head 30 to rotate is very large. When the threaded contact between the power head 30 and the bearing joint 20 is abnormal, the manual cannot judge and find the problem in time. It can only be found after the bearing joint 20 cannot continue to screw into the power head 30. This will lead to damage to the workpiece, and finally it can only be completely disassembled for repair, which is inefficient, and due to the large mass of the ratchet sleeve 10, it consumes a lot of manpower in the process of manual lifting

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