Gear box for petroleum drilling rotary table

Abstract

The invention relates to a gear box for a petroleum drilling rotary table. The gear box for the petroleum drilling rotary table comprises a box body, an input shaft, an input bevel gear, an output bevel gear and an output shaft. The box body comprises an input shaft box body and an output shaft box body, and the combination part of the input shaft box body and the output shaft box body is connected into a whole in a welding mode after seamless butt joint is conducted. The input end of the input shaft box body is provided with a bearing sleeve, one end of the input shaft is arranged on the bearing sleeve in a supported mode through a bearing, and the other end of the input shaft is arranged on the input shaft box body in a supported mode through a bearing. The output shaft box body is provided with a bearing base, and the two ends of the output shaft are arranged on the bearing base in a supported mode through a bearing. One end of the input shaft and one end of the output shaft stretch out of the box bodies and are provided with a transparent cover and an oil seal. One end of the input shaft penetrates through the input shaft box body and enters the output shaft box body, the end of the input shaft is provided with the input bevel gear, the output bevel gear is arranged on the output shaft, and the input bevel gear and the output bevel gear are meshed with each other. The input shaft box body is at least provided with a forced lubrication oil inlet, lubrication oil enters the bearing supporting the input shaft through the forced lubrication oil inlet and an oil duct, and an oil return opening is formed in the position below the input shaft box body.

Description

technical field [0001] The invention relates to a gear box, in particular to a gear box for an oil drilling turntable. Background technique [0002] With the development of society, the global demand for oil has increased sharply, leading to the acceleration of oil exploration and exploitation in various countries, and the demand for exploration and extraction equipment has also increased sharply. In order to alleviate the deepening contradiction between supply and demand, my country has continuously increased investment in oil extraction equipment. [0003] In oil drilling equipment, the gearbox for oil drilling turntable is a special gearbox that converts the speed and torque of the motor into the speed and torque required by the turntable. As the oil drilling turntable gear box is used under the complex working conditions of deep well or even ultra-deep well drilling, it needs to meet the requirements of high power, compact structure, and long-term continuous operation. ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to improve a new oil drilling method for the lubrication of the input shaft and the oil leakage at the input end of the gearbox for the oil drilling rotary table. Gearbox for turntable

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