Hydraulic turntable for pressure balance workover rigs

Abstract

The invention relates to a hydraulic turntable for pressure balance workover rigs, which comprises a box, an upper box cover, a lower box cover, an output assembly and an input assembly; the output assembly comprises an output gear shaft, an output flange and self-aligning thrust roller bearings, the output gear shaft runs through the upper box cover, the box and the lower box cover, the self-aligning thrust roller bearings are sleeved on the output gear shaft in both the upper box cover and the lower box cover, and the lower end of the output gear shaft is connected with the output flange through splines; the input assembly comprises an input gear shaft and an input flange, the upper box cover is provided with a plurality of input flange holes, the input flange is fixed in the input flange holes, the input gear shaft is arranged on the input flange, and the output gear shaft is transmissively connected with the input gear shaft. The hydraulic turntable can ensure that a pressure balance workover rig has both the drilling function and the workover function; the pressure balance workover rig can be prepared for operation without needing other equipment after arriving at a well site, and thereby the operation preparation period is shortened by about 25 percent; moreover, the safety performance is high, and the service life is long.

Description

technical field [0001] The invention relates to the technical field of petroleum drilling and production equipment, in particular to a hydraulic rotary table used for a snubbing workover machine. Background technique [0002] At present, all the snubbing devices produced in China are separated from the workover rig. When going to the site for workover operations, it is necessary to use other mobile equipment to transport the snubbing device to the well site, and then go to a crane to cooperate with it. The operator connects the snubbing operation device with the workover rig, and then connects all the hydraulic pipelines to carry out the workover operation, but it is very inconvenient to operate, because it is operated by two people, and the cooperation is very difficult. Difficult, and the efficiency is very low; In addition, because the workover operation room is installed at the rear of the vehicle, this position not only has a very bad line of sight, but is also very un...

AI Technical Summary

Problems solved by technology

[0002] At present, all the snubbing devices produced in China are separated from the workover rig. When going to the site for workover operations, it is necessary to use other mobile equipment to transport the snubbing device to the well site, and then go to a crane to cooperate with it. The operator connects the snubbing operation device with the workover rig, and then connects all the hydraulic pipelines to carry out the workover operation, but it is very inconvenient to operate, because it is operated by two people, and the cooperation is very difficult. Difficult, and the efficiency is very low; In addition, because the workover operation room is installed at the rear of the vehicle, this position not only has a very bad line of sight, but is also very unsafe

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