CN208221390U

CN208221390U - The bearing assembly of the rotation assembly of the closed rotating blowout preventer of environmental protection

Info

Publication number: CN208221390U
Application number: CN201820608974.1U
Authority: CN
Inventors: 曹阳
Original assignee: JIANGSU WEIDONG MACHINERY Co Ltd
Current assignee: JIANGSU WEIDONG MACHINERY Co Ltd
Priority date: 2018-04-26
Filing date: 2018-04-26
Publication date: 2018-12-11
Anticipated expiration: 2028-04-26

Abstract

The utility model discloses the bearing assemblies of the rotation assembly of the closed rotating blowout preventer of environmental protection, two groups of SL184948 roller bearings (3), two groups of SLI81248 thrust bearings (4) are mounted in the annular space between shell (2) and mandrel (5), seal (1) is withstood above four groups of bearings, lower seal (6) are withstood below four groups of bearings, two groups of SL184948 roller bearings (3) bear radial load, two groups of SLI81248 thrust bearings (4) bear axial load, are integrally formed bearing assembly.The structure of the bearing assembly of the utility model is simple, firm and reliable connection, and the two-way carrying of bearing makes the bearing capacity of rotation assembly obtain great reinforcement, while ability of righting is improved, more effectively protection sealing element, increases the service life of rotation assembly.

Description

The bearing assembly of the rotation assembly of the closed rotating blowout preventer of environmental protection

Technical field

The utility model relates to the closed rotating blowout preventers of under balance pressure drilling environmental protection, and in particular under balance pressure drilling environmental protection is close The bearing assembly of the rotation assembly of enclosed rotating blowout preventer.

Background technique

Currently, under-balanced drilling technology has evolved into ripe, and its discovery and protection oil-gas Layer and bit speed etc. is improved The effect of aspect is also accepted.With the rapid development of petroleum industry, field of oil drilling makees under-balanced drilling technology For a kind of one preferred technique.Environmental renovation is carried out energetically by country simultaneously, and to the production equipment of petroleum industry, more stringent requirements are proposed.

Bearing assembly is the important component of rotation assembly, and it is existing to can solve current China for the development of bearing assembly The problem of the bearing assembly ability of righting difference of underbalance well drilling rotary blowout preventer rotation assembly.

Summary of the invention

The purpose of this utility model is that: the bearing for providing a kind of rotation assembly of closed rotating blowout preventer of environmental protection is total At, solve the problems, such as that bearing assembly ability of righting is poor in rotation assembly use process, structure is simple, securely and reliably, improve owe The working efficiency of balanced drilling.

The technical solution of the utility model is: the bearing assembly of the closed rotating blowout preventer of the environmental protection includes upper sealing Body, two groups of SL184948 roller bearings, two groups of SLI81248 thrust bearings, shell, mandrel and lower seal；Two groups of SL184948 Roller bearing, two groups of SLI81248 thrust bearings are mounted in the annular space between shell and mandrel, are withstood above four groups of bearings Seal, lower seal is withstood below four groups of bearings, and two groups of SL184948 roller bearings bear radial loads, two groups of SLI81248 Thrust bearing bears axial load, is integrally formed bearing assembly.

The beneficial effects of the utility model are: the bearing assembly structure of 1, rotation assembly is simple, firm and reliable connection；2, two Group SL184948 roller bearing bears radial load, and two groups of SLI81248 thrust bearings bear axial load, the two-way carrying of bearing The bearing capacity of rotation assembly is set to have obtained great reinforcement, while ability of righting is improved, more effectively protection sealing Part increases the service life of rotation assembly.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

In figure: seal on 1,2 shells, 3 roller bearings, 4 thrust bearings, 5 mandrels, 6 lower seals.

Specific embodiment

Technical solutions of the utility model are further illustrated with reference to the accompanying drawing.

As shown in Figure 1, the bearing assembly of the rotation assembly of the closed rotating blowout preventer of the environmental protection includes upper seal 1, two Group 3, two groups of SLI81248 thrust bearings 4 of SL184948 roller bearing, shell 2, mandrel 5 and lower seal 6, two groups of SL184948 3, two groups of SLI81248 thrust bearings 4 of roller bearing are mounted in the annular space between shell 2 and mandrel 5, are pushed up above four groups of bearings Seal 1 to be lived in, withstands lower seal 6 below four groups of bearings, two groups of SL184948 roller bearings 3 bear radial loads, and two groups SLI81248 thrust bearing 4 bears axial load, is integrally formed bearing assembly.

Claims

1. the bearing assembly of the rotation assembly of the closed rotating blowout preventer of environmental protection, it is characterized in that: it includes upper seal (1), two Group SL184948 roller bearing (3), two groups of SLI81248 thrust bearings (4), shell (2), mandrel (5) and lower seal (6), two Group SL184948 roller bearing (3), two groups of SLI81248 thrust bearings (4) are mounted on the annular space between shell (2) and mandrel (5) It is interior, it withstands seal (1), is withstood below four groups of bearings lower seal (6) above four groups of bearings, two groups of SL184948 Roller Shafts It holds (3) and bears radial load, two groups of SLI81248 thrust bearings (4) bear axial load, the closed rotation of overall structure environmental protection The bearing assembly of preventer.