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Mechanical decelerator for electrical submersible processing cavity pump

A technology of submersible screw and reducer, which is applied in the direction of mechanical equipment, transmission components, transmission devices, etc., can solve problems such as corrosion and damage, achieve the effects of reducing structural parts, ensuring assembly accuracy, and simple structure

Inactive Publication Date: 2015-11-11
CHONGQING COLLEGE OF ELECTRONICS ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] f. The transmission bearing parts (gears, etc.) can be fully bathed and lubricated, but they may be corroded and damaged by acidic substances, sand particles, and gases in well fluid crude oil

Method used

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  • Mechanical decelerator for electrical submersible processing cavity pump

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] A mechanical reducer for an electric submersible screw pump, comprising a central shaft 7, a base 1, a casing 6, a planetary wheel 9, a head 11, and a sun gear 5, and the base 1, the casing 6, and the head 11 use column pins 10 Bolt connection, the central shaft 7 is located in the base 1, the housing 6 and the head 11, the oil seal 2 is used to seal between the central shaft 7 and the base 1, the planetary gear 9 is sleeved on the central shaft 7 through the planet carrier, the central shaft 7 and the The sun gear 5 is connected through the high-speed shaft 4, and the base 1 and the high-speed shaft 4 are connected through the oil filling valve 3; in the present invention, the thickness of the housing 6 is 3 mm; and the planet carrier 13 is equipped with a sliding bearing 12; Fix by column pin 10 between frame 13 and planetary wheel 9. ...

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Abstract

The invention discloses a mechanical decelerator for an electrical submersible processing cavity pump. The mechanical decelerator comprises a center shaft, a pedestal, a housing, a planetary gear, a head and a sun gear. The pedestal, the housing and the head are connected through bolts, the center shaft and the pedestal are sealed through oil, the planetary gear sleeves the center shaft through a planetary frame, the center shaft is connected with the sun gear through a high-speed shaft, the pedestal is connected with the high-speed shaft through an oiling valve, and the minimum thickness of the housing is 3 mm. The tooth width coefficients [phi]d of the sun gear and the planetary gear are greater than 1.2. The mechanical decelerator for the electrical submersible processing cavity pump is large in power density, can be used for a long time in a sever high-temperature environment, a part of structures are integrated, the assembling precision can be ensured, and the number of structural members can be reduced.

Description

technical field [0001] The invention relates to a mechanical reducer, in particular to a mechanical reducer for an electric submersible screw pump, which belongs to the field of oil pumping (oil extraction) equipment. Background technique [0002] The electric submersible screw pump is a new type of rodless oil pumping equipment, the related technology is not very mature, and many technical difficulties are still international research topics. Theoretically speaking, the screw pump can pump heavy oil and three-phase mixture of gas, liquid and solid, and the oil output is continuous and stable, and it is not easy to sand stuck and gas lock. Due to the structural characteristics, the screw pump actually combines the advantages of the reciprocating pump and the centrifugal pump, and the change of the flow rate under different pressure heads is small and very uniform. The problems of mid-sucker rod breakage and limited use in inclined wells and Gouai wells are very important fo...

Claims

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Application Information

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IPC IPC(8): F16H1/28F16H57/023
CPCF16H1/28F16H57/023F16H2700/00
Inventor 吴牮
Owner CHONGQING COLLEGE OF ELECTRONICS ENG
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