CN110952948A - Bearing assembly of rotary blowout preventer - Google Patents

Bearing assembly of rotary blowout preventer Download PDF

Info

Publication number
CN110952948A
CN110952948A CN201911096001.XA CN201911096001A CN110952948A CN 110952948 A CN110952948 A CN 110952948A CN 201911096001 A CN201911096001 A CN 201911096001A CN 110952948 A CN110952948 A CN 110952948A
Authority
CN
China
Prior art keywords
bearing
angular contact
deep groove
groove ball
assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911096001.XA
Other languages
Chinese (zh)
Inventor
赵航博
韦海防
王培峰
仵磊
韩朝辉
杨茂红
李新弟
杨赟
聂俊
邓凯
王玲
赵永光
赵文庄
张岄
张弢
蔺文洁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China National Petroleum Corp
CNPC Chuanqing Drilling Engineering Co Ltd
Original Assignee
Engineering Technology Research Institute of CNPC Chuanqing Drilling Engineering Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Engineering Technology Research Institute of CNPC Chuanqing Drilling Engineering Co ltd filed Critical Engineering Technology Research Institute of CNPC Chuanqing Drilling Engineering Co ltd
Priority to CN201911096001.XA priority Critical patent/CN110952948A/en
Publication of CN110952948A publication Critical patent/CN110952948A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/08—Wipers; Oil savers
    • E21B33/085—Rotatable packing means, e.g. rotating blow-out preventers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F16C19/541—Systems consisting of juxtaposed rolling bearings including at least one angular contact bearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/07—Fixing them on the shaft or housing with interposition of an element
    • F16C35/073—Fixing them on the shaft or housing with interposition of an element between shaft and inner race ring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/07—Fixing them on the shaft or housing with interposition of an element
    • F16C35/077—Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/08—Rigid support of bearing units; Housings, e.g. caps, covers for spindles
    • F16C35/12—Rigid support of bearing units; Housings, e.g. caps, covers for spindles with ball or roller bearings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The invention relates to a bearing combination of a rotary assembly of a rotary blowout preventer, belonging to the field of bearings in the rotary assembly of the rotary blowout preventer, and the bearing combination of the rotary assembly of the rotary blowout preventer, provided by the invention, comprises: a deep groove ball bearing; an angular contact bearing set paired by a plurality of angular contact bearings; the axial sizes of the inner and outer separating cylinders and the inner and outer separating rings and the roughness of the contacted end surfaces are adjusted, so that the upper bearing is ensured to be combined into a whole, and the radial centering function and the axial load bearing function are realized.

Description

Bearing assembly of rotary blowout preventer
Technical Field
The invention belongs to the field of bearings inside a rotating assembly of a rotating blowout preventer, and particularly relates to a bearing assembly of the rotating blowout preventer.
Background
At present, in the field use process of a rotating assembly of a rotating blowout preventer, due to the fact that a bearing assembly is unreasonably designed, poor radial centering often occurs, and the up-down moving sealing assembly is severely eccentrically worn, so that the rotating assembly is subjected to sealing failure due to poor radial centering; due to the fact that the bearing assembly is not designed reasonably, even after the deep groove ball bearing bears the load axially, the steel ball of the deep groove ball bearing is seriously deformed or even broken, and therefore the rotating assembly fails due to the fact that the axial load is not stressed reasonably.
Disclosure of Invention
The invention provides a bearing combination of a rotating assembly of a rotating blowout preventer, aiming at solving the problems, solving the problems that the radial centering is not good often because the design of a bearing assembly is not reasonable, and the sealing assembly moving up and down is seriously eccentric, so that the sealing failure of the rotating assembly is caused by the poor radial centering of the rotating assembly; due to the fact that the bearing assembly is unreasonable in design, even after the deep groove ball bearing bears the load axially, the steel ball of the deep groove ball bearing is seriously deformed or even broken, and therefore the problem that the rotating assembly fails due to the fact that the axial load is unreasonable in stress is caused.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a bearing assembly of a rotating blowout preventer swivel assembly, comprising:
a deep groove ball bearing;
an angular contact bearing set paired by a plurality of angular contact bearings;
the inner separation barrel is arranged between the deep groove ball bearing and the top end of the angular contact bearing group, and an inner ring of the deep groove ball bearing is connected with an inner ring of the angular contact bearing group through the inner separation barrel;
the outer separation barrel is arranged between the deep groove ball bearing and the top end of the angular contact bearing group, and the outer ring of the deep groove ball bearing is connected with the outer ring of the angular contact bearing group through the inner separation barrel;
the inner ring of the deep groove ball bearing is integrally connected with the inner ring of the angular contact bearing group through an inner separation cylinder, and the outer ring of the deep groove ball bearing is integrally connected with the outer ring of the angular contact bearing group through an outer separation cylinder.
Outer spacer rings and inner spacer rings are arranged among a plurality of angular contact bearings of the angular contact bearing group, inner rings of the angular contact bearings are connected into a whole in a pairwise mode through the inner spacer rings, and outer rings of the angular contact bearings are connected into a whole in a pairwise mode through the inner spacer rings.
The outer spacer ring and the inner spacer ring are in static friction connection with the contact surfaces of the angular contact bearings.
The angular contact bearing group comprises a first tapered roller bearing and a second tapered roller bearing, and the second tapered roller bearing and the first tapered roller bearing are arranged back to back; or
The second tapered roller bearing and the first tapered roller bearing are arranged in a face-to-face manner; or
The second tapered roller bearing and the first tapered roller bearing are arranged in the same direction.
The angular contact bearings of the angular contact bearing set are provided with at least one third angular contact bearing, and the third angular contact bearing is in face-to-face contact with any one angular contact bearing; or
The third angular contact bearing is back to back with any one angular contact bearing.
Except the third angular contact bearing, other angular contact bearings in the angular contact bearing group are in the same direction.
In the angular contact bearing group, the number of the angular contact bearings is more than three, one end of the angular contact bearing clamped between the angular contact bearings is connected with one bearing back to back, and the other end of the angular contact bearing is connected with the other bearing face to face.
The inner partition cylinder is provided with a first rough surface positioned on the top surface and a second rough surface positioned on the bottom surface, the bottom surface of an inner ring of the deep groove ball bearing is provided with a third rough surface, the top surface of the inner ring of the angular contact bearing group is provided with a fourth rough surface, the first rough surface and the third rough surface are in static friction connection, and the second rough surface and the fourth rough surface are in static friction connection;
the outer separating cylinder is provided with a fifth rough surface positioned on the top surface and a sixth rough surface positioned on the bottom surface, the bottom surface of the outer ring of the deep groove ball bearing is provided with a seventh rough surface, the top surface of the outer ring of the angular contact bearing group is provided with an eighth rough surface, the fifth rough surface and the seventh rough surface are in static friction connection, and the sixth rough surface and the eighth rough surface are in static friction connection.
In the angular contact bearing group, a single angular contact bearing is a tapered roller bearing or a deep groove ball bearing.
A second deep groove ball bearing is arranged at the lower end of the angular contact bearing group, the second deep groove ball bearing is coaxial with the angular contact bearing group, and a distance is reserved between the second deep groove ball bearing and the angular contact bearing group;
the top of the deep groove ball bearing is provided with an upper shaft sleeve, the bottom of the second deep groove ball bearing is provided with a lower shaft sleeve, the upper shaft sleeve is integrally connected with the inner ring of the deep groove ball bearing, and the lower shaft sleeve is integrally connected with the inner ring of the second deep groove ball bearing.
The invention has the advantages that the axial sizes and the contacted end surface roughness of the inner and outer spacers and the inner and outer spacers are adjusted to ensure that the upper bearing is combined into a whole, and the bearing has the functions of bearing axial load and radially righting.
Drawings
FIG. 1 is a schematic diagram of the structure of a bearing assembly of a rotary blowout preventer swivel assembly of the present invention.
Labeled as: 1. an upper seal box; 2. an upper shaft sleeve; 3. a deep groove ball bearing; 4. an outer separating cylinder; 5. an inner partition cylinder; 6. a first tapered roller bearing; 7. an outer spacer ring; 8. an inner spacer ring; 9. a central shaft; 10. a rotating assembly housing; 11. a lower shaft sleeve; 12. a lower seal box; 13. and a second tapered roller bearing.
Detailed Description
The bearing assembly scheme of the rotary blowout preventer rotary assembly provided by the embodiment of the invention is described in detail through several specific embodiments.
Example 1
Referring to fig. 1, a schematic structural diagram of a bearing assembly of a rotating blowout preventer rotating assembly according to an embodiment of the present invention is shown, where the bearing assembly of the rotating blowout preventer rotating assembly includes:
a deep groove ball bearing 3;
an angular contact bearing set paired by a plurality of angular contact bearings;
the inner isolation cylinder 5 is arranged between the deep groove ball bearing 3 and the top end of the angular contact bearing group, and an inner ring of the deep groove ball bearing 3 is connected with an inner ring of the angular contact bearing group through the inner isolation cylinder 5;
the outer separating cylinder 4 is arranged between the deep groove ball bearing 3 and the top end of the angular contact bearing group, and the outer ring of the deep groove ball bearing 3 is connected with the outer ring of the angular contact bearing group through the inner separating cylinder 5;
the inner ring of the deep groove ball bearing 3 is integrally connected with the inner ring of the angular contact bearing group through an inner separation barrel 5, and the outer ring of the deep groove ball bearing 3 is integrally connected with the outer ring of the angular contact bearing group through an outer separation barrel 4.
In the above embodiment, the angular contact bearing assembly is disposed at the center for receiving the radial force transmitted by the central shaft 9, the deep groove ball bearing 3 is disposed at the lower end of the upper seal box 1, and does not receive or slightly receives the axial force from the central shaft 9, the inner ring of the deep groove ball bearing 3 and the inner ring of the angular contact bearing assembly are connected by the inner spacer 5 between the angular contact bearing assembly and the deep groove ball bearing 3, the outer ring of the deep groove ball bearing 3 and the outer ring of the angular contact bearing assembly are connected by the outer spacer 4, and after receiving the axial force from the central shaft 9, the angular contact bearing assembly transmits the axial component force to the deep groove ball bearing 3 through the inner spacer 5 and the outer spacer 4, and transmits the radial component force to the rotation assembly housing 10.
It should be noted that the lengths of the inner and outer spacers 5 and 4 need to be in close contact with the deep groove ball bearing 3 and the angular contact bearing set, and the inner and outer spacers 5 and 4 combine the deep groove ball bearing 3 and the angular contact bearing set into a whole, and after being installed on the central shaft 9, no matter any part of the upper bearing set is rotated by hand, all the outer rotating parts must be rotated synchronously, and if necessary, the inner and outer spacers 5 and 4 can be in interference fit with the deep groove ball bearing 3 and the angular contact bearing set.
Example 2
Further, referring to fig. 1, according to another embodiment of the bearing assembly of the rotating assembly of the rotary blowout preventer, an outer spacer ring 7 and an inner spacer ring 8 are arranged between a plurality of angular contact bearings of the angular contact bearing set, inner rings of the angular contact bearings are connected into a whole in pairs through the inner spacer ring 8, and outer rings of the angular contact bearings are connected into a whole in pairs through the inner spacer ring 8.
In the above embodiment, no matter any part of the upper bearing assembly is rotated by hand, all the outer rotating parts must be rotated synchronously, and at the same time, the angular contact bearing assembly composed of a plurality of angular contact bearings is integrated by the outer spacer ring 7 and the inner spacer ring 8, and at this time, no matter any part of the upper bearing assembly is rotated by hand, the deep groove ball bearing 3 and the inner rings of all the bearings in the angular contact bearing assembly are integrated, and the outer ring is also integrated. After the axial and radial clearances are adjusted by the combination of the deep groove ball bearing 3 and the upper bearing composed of the angular contact bearing group, the deep groove ball bearing 3 is radially righted, and the angular contact bearing group bears the axial load. Severe eccentric wear of the seal assembly is avoided.
Example 3
Further, referring to fig. 1, in another embodiment of the bearing assembly of the rotating assembly of the rotary blowout preventer according to the present invention, the outer spacer ring 7 and the inner spacer ring 8 are in static friction connection with the contact surfaces of the angular contact bearings.
In the above embodiment, in order to integrate the plurality of angular contact bearings into one body by the outer spacer 7 and the inner spacer 8, all the contact surfaces are made to have roughness by polishing the top surfaces and the lower surfaces of the outer spacer 7 and the inner spacer 8 and the contact surfaces of the plurality of angular contact bearings with the outer spacer 7 and the inner spacer 8, so that the plurality of angular contact bearings are integrally connected after the plurality of angular contact bearings are connected by using the outer spacer 7 and the inner spacer 8.
Example 4
Further, referring to fig. 1, another embodiment of the bearing assembly of the rotating assembly of the rotary blowout preventer according to the present invention includes a first tapered roller bearing 6 and a second tapered roller bearing 13, wherein the second tapered roller bearing 13 is disposed back to back with the first tapered roller bearing 6; or
The second tapered roller bearing 13 is disposed facing the first tapered roller bearing 6; or
The second tapered roller bearing 13 is provided in the same direction as the first tapered roller bearing 6.
In the above embodiment, the angular contact bearing sets may be combined back to back, face to face, or in the same direction, and may be reasonably matched when bearing forces in different directions.
Example 5
Further, referring to fig. 1, another embodiment of the bearing assembly of the rotating assembly of the rotary blowout preventer according to the present invention is that the angular contact bearings of the angular contact bearing set have at least one third angular contact bearing, and the third angular contact bearing is in face-to-face relation with any one of the angular contact bearings; or
The third angular contact bearing is back to back with any one angular contact bearing.
Except the third angular contact bearing, other angular contact bearings in the angular contact bearing group are in the same direction.
In the above embodiments, the plurality of angular contact shafts may have more than three, a triad of angular contact bearings may function better, a triple configuration, a post-designation DBD (70000/DBD), and a triple configuration, which may be capable of withstanding both radial and 2 axial loads. When the DBD rotates at a high speed, the internal load of the single-row bearing is increased, so that the bearing is possibly damaged, and therefore, the DBD is not suitable for rotating at a high speed, and the main form of triple pairing is as follows: TBT type, TFT type, TT type.
Example 6
Further, another embodiment of the present invention is a bearing assembly for a rotary assembly of a rotary blowout preventer, wherein the number of the angular contact bearings is more than three, and one end of the angular contact bearing sandwiched between the angular contact bearings is connected with one bearing back to back, and the other end is connected with the other bearing face to face.
In the above embodiment, the plurality of angular contact bearings are arranged face to face and back to back in sequence, and can bear larger axial compliance more uniformly.
Example 7
Further, another embodiment of the bearing combination of the rotary assembly of the rotary blowout preventer of the present invention is that the inner spacer 5 has a first rough surface on the top surface and a second rough surface on the bottom surface, the inner ring bottom surface of the deep groove ball bearing 3 has a third rough surface, the inner ring top surface of the angular contact bearing set has a fourth rough surface, the first rough surface and the third rough surface are stically connected, and the second rough surface and the fourth rough surface are stically connected;
the outer separating cylinder 4 is provided with a fifth rough surface positioned on the top surface and a sixth rough surface positioned on the bottom surface, the bottom surface of the outer ring of the deep groove ball bearing 3 is provided with a seventh rough surface, the top surface of the outer ring of the angular contact bearing set is provided with an eighth rough surface, the fifth rough surface and the seventh rough surface are in static friction connection, and the sixth rough surface and the eighth rough surface are in static friction connection.
In the above embodiment, the angular contact bearing assembly is connected with the deep groove ball bearing 3 through the inner separation cylinder 5 and the outer separation cylinder 4 in a static friction manner, so that it is ensured that the rotating component of the angular contact bearing assembly or the deep groove ball bearing 3 is rotated at any time, when the load of the central shaft 9 is borne, the rotating angular contact bearing assembly can disperse the axial force to the deep groove ball bearing 3 and send the axial force to the rotating assembly housing 10, and it is ensured that the deep groove ball bearing 3 only needs to bear the axial force, and the deep groove ball bearing 3 is ensured to be in a normal working state when being righted.
Example 8
Further, another embodiment of the present invention is a bearing assembly for a rotary blowout preventer swivel assembly, wherein the single angular contact bearing in the angular contact bearing assembly is a tapered roller bearing or a deep groove ball bearing.
In the above embodiment, the combination mode of the angular contact bearing assembly may be that a pure tapered roller bearing is combined, and in some cases, a deep groove ball bearing may be arranged in the middle of the angular contact bearing assembly, so that the centering effect of the angular contact bearing assembly is more obvious.
Example 9
Further, referring to fig. 1, according to another embodiment of the bearing assembly of the rotating assembly of the rotary blowout preventer, a second deep groove ball bearing is disposed at a lower end of the angular contact bearing set, the second deep groove ball bearing is coaxial with the angular contact bearing set, and a distance is provided between the second deep groove ball bearing and the angular contact bearing set;
the top of the deep groove ball bearing 3 is provided with an upper shaft sleeve 2, the bottom of the second deep groove ball bearing is provided with a lower shaft sleeve 11, the upper shaft sleeve 2 is integrally connected with the inner ring of the deep groove ball bearing 3, and the lower shaft sleeve 11 is integrally connected with the inner ring of the second deep groove ball bearing.
In the embodiment, when the rotary assembly is processed and applied on site after the design mode is finished, when the rotary assembly is eccentric due to the non-concentricity of the drilling tool, radial centering can be performed through the deep groove ball bearing which is far away from the upper part and the lower part, so that the upper sealing assembly and the lower sealing assembly of the rotary assembly are well protected, and the serious eccentric wear of the upper movable sealing assembly and the lower movable sealing assembly is avoided. When pressure-controlled drilling is carried out, axial load caused by high pressure of a wellhead is transmitted to a shell of the rotary assembly through the back-to-back upper end single-row tapered roller bearings, and then transmitted to a shell of the rotary blowout preventer to be offset. When the drilling tool is pressed downwards, axial downward force is freely allocated on site through back-to-back, face-to-face or by persons in the field, and the axial force is transmitted to the shell of the rotating assembly by the single-row tapered roller bearing at the lower end and then transmitted to the shell of the rotating blowout preventer to be counteracted. The outer ring of the lower independent deep groove ball bearing 3 is not contacted with the lower step of the rotating assembly shell 10 and the end part of the lower sealing box 12, and is designed to be axially floating, and the main function of the outer ring is to eliminate the axial movement of the rotating part.
When the deep groove ball bearing assembly is installed, the deep groove ball bearing 3 and the outer ring of the angular contact bearing assembly are integrally installed with the rotating assembly shell.
It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the present embodiment are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
In addition, descriptions related to "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
Technical solutions between various embodiments may be combined with each other, but must be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Claims (10)

1. A bearing assembly of a rotary blowout preventer swivel assembly, comprising:
a deep groove ball bearing (3);
an angular contact bearing set paired by a plurality of angular contact bearings;
the inner isolation cylinder (5) is arranged between the deep groove ball bearing (3) and the top end of the angular contact bearing group, and an inner ring of the deep groove ball bearing (3) is connected with an inner ring of the angular contact bearing group through the inner isolation cylinder (5);
the outer separation barrel (4) is arranged between the deep groove ball bearing (3) and the top end of the angular contact bearing set, and the outer ring of the deep groove ball bearing (3) is connected with the outer ring of the angular contact bearing set through the inner separation barrel (5);
the inner ring of the deep groove ball bearing (3) is integrally connected with the inner ring of the angular contact bearing set through an inner separation cylinder (5), and the outer ring of the deep groove ball bearing (3) is integrally connected with the outer ring of the angular contact bearing set through an outer separation cylinder (4).
2. A bearing combination of a rotary assembly of a rotary blowout preventer according to claim 1, characterized in that between the angular contact bearings of the set there are an outer spacer ring (7) and an inner spacer ring (8), the inner rings of which are connected in pairs by the inner spacer ring (8) and the outer rings of which are connected in pairs by the inner spacer ring (8).
3. A bearing combination of a rotating assembly of a rotary blowout preventer according to claim 2, characterized in that the outer spacer ring (7) and the inner spacer ring (8) are in a static friction connection with the contact surfaces of the angular contact bearings.
4. A bearing combination of a rotary blowout preventer swivel assembly according to claim 1, characterized in that the angular contact bearing set comprises a first tapered roller bearing (6) and a second tapered roller bearing (13), the second tapered roller bearing (13) being arranged back to back with the first tapered roller bearing (6); or
The second tapered roller bearing (13) and the first tapered roller bearing (6) are arranged in a face-to-face manner; or
The second tapered roller bearing (13) is arranged in the same direction as the first tapered roller bearing (6).
5. The rotary blowout preventer swivel assembly bearing assembly according to claim 1, wherein the plurality of angular contact bearings of the angular contact bearing assembly comprise at least one third angular contact bearing in face-to-face relationship with any one of the angular contact bearings; or
The third angular contact bearing is back to back with any one angular contact bearing.
6. The bearing assembly of a rotary blowout preventer swivel assembly according to claim 5, wherein the angular contact bearings of the angular contact bearing assembly are co-directional except for the third angular contact bearing.
7. The bearing assembly of claim 1, wherein the number of angular contact bearings in the set is greater than three, and the sandwiched angular contact bearings are connected back-to-back with one bearing at one end and face-to-face with the other bearing at the other end.
8. A bearing combination for a rotary blowout preventer swivel assembly according to claim 1, characterized in that the inner spacer (5) has a first roughness surface on the top side and a second roughness surface on the bottom side, the inner ring bottom surface of the deep groove ball bearing (3) has a third roughness surface, the inner ring top surface of the angular contact bearing set has a fourth roughness surface, the first roughness surface and the third roughness surface are in stiction connection, the second roughness surface and the fourth roughness surface are in stiction connection;
the outer separating cylinder (4) is provided with a fifth rough surface positioned on the top surface and a sixth rough surface positioned on the bottom surface, the bottom surface of the outer ring of the deep groove ball bearing (3) is provided with a seventh rough surface, the top surface of the outer ring of the angular contact bearing set is provided with an eighth rough surface, the fifth rough surface and the seventh rough surface are in static friction connection, and the sixth rough surface and the eighth rough surface are in static friction connection.
9. The bearing assembly of a rotary blowout preventer swivel assembly of claim 1, wherein the individual angular contact bearings in the set of angular contact bearings are tapered roller bearings or deep groove ball bearings.
10. The bearing assembly of the rotary blowout preventer swivel assembly of claim 1, wherein the angular contact bearing assembly is provided at a lower end thereof with a second deep groove ball bearing, the second deep groove ball bearing being coaxial with the angular contact bearing assembly, the second deep groove ball bearing being spaced from the angular contact bearing assembly;
an upper shaft sleeve (2) is arranged at the top of the deep groove ball bearing (3), a lower shaft sleeve (11) is arranged at the bottom of the second deep groove ball bearing, the upper shaft sleeve (2) is integrally connected with the inner ring of the deep groove ball bearing (3), and the lower shaft sleeve (11) is integrally connected with the inner ring of the second deep groove ball bearing.
CN201911096001.XA 2019-11-11 2019-11-11 Bearing assembly of rotary blowout preventer Pending CN110952948A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911096001.XA CN110952948A (en) 2019-11-11 2019-11-11 Bearing assembly of rotary blowout preventer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911096001.XA CN110952948A (en) 2019-11-11 2019-11-11 Bearing assembly of rotary blowout preventer

Publications (1)

Publication Number Publication Date
CN110952948A true CN110952948A (en) 2020-04-03

Family

ID=69977142

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911096001.XA Pending CN110952948A (en) 2019-11-11 2019-11-11 Bearing assembly of rotary blowout preventer

Country Status (1)

Country Link
CN (1) CN110952948A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU76961U1 (en) * 2008-05-12 2008-10-10 Федеральное государственное образовательное учреждение высшего профессионального образования Сибирский федеральный университет (СФУ) ROTATING CONVECTOR
US20090057021A1 (en) * 2007-08-27 2009-03-05 Williams John R Bearing assembly inner barrel and well drilling equipment comprising same
CN101761320A (en) * 2009-12-26 2010-06-30 杨颖辉 Rotary ring-shaped blowout preventer
CN205117988U (en) * 2015-10-20 2016-03-30 大连冶金轴承股份有限公司 Zanjon ball and tapered roller combination bearing
CN106050182A (en) * 2016-06-27 2016-10-26 阜宁县石油机械有限公司 Enhanced synchronous rotation blowout preventer
CN211115907U (en) * 2019-11-11 2020-07-28 中国石油集团川庆钻探工程有限公司工程技术研究院 Bearing assembly of rotary blowout preventer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090057021A1 (en) * 2007-08-27 2009-03-05 Williams John R Bearing assembly inner barrel and well drilling equipment comprising same
RU76961U1 (en) * 2008-05-12 2008-10-10 Федеральное государственное образовательное учреждение высшего профессионального образования Сибирский федеральный университет (СФУ) ROTATING CONVECTOR
CN101761320A (en) * 2009-12-26 2010-06-30 杨颖辉 Rotary ring-shaped blowout preventer
CN205117988U (en) * 2015-10-20 2016-03-30 大连冶金轴承股份有限公司 Zanjon ball and tapered roller combination bearing
CN106050182A (en) * 2016-06-27 2016-10-26 阜宁县石油机械有限公司 Enhanced synchronous rotation blowout preventer
CN211115907U (en) * 2019-11-11 2020-07-28 中国石油集团川庆钻探工程有限公司工程技术研究院 Bearing assembly of rotary blowout preventer

Similar Documents

Publication Publication Date Title
CN211115907U (en) Bearing assembly of rotary blowout preventer
CN103842106A (en) Rolling stand roll neck seal
JP2003502539A (en) Swivel device
CN102767567B (en) linear bearing
CN110952948A (en) Bearing assembly of rotary blowout preventer
CN106838007A (en) Thrust bearing, knuckle bearing device and application thereof
CN109751338A (en) Support the bearing of the radial deformation of roller bearing and the rotary components including the bearing
CN103807287A (en) Geometric design method of integral loop four-contact contact ball bearing
EP3667136B1 (en) Segment seal
CN114483776B (en) Main bearing of heading machine and assembly method thereof
US20240003427A1 (en) Valve Core Assembly and Electronic Expansion Valve Having Valve Core Assembly
CN110848250B (en) Joint bearing for main driving assembly of shield tunneling machine and checking method thereof
CN209761992U (en) Single-row angular contact ball bearing capable of bearing bidirectional load
CN209671411U (en) Carry the double-row conical novel bearing of axial force
CN107435628A (en) Location sealing component and apply its tumbler, rotation system and fluid machinery
CN212616912U (en) Pagoda type high-speed rotary joint
CN113423962A (en) Rotor bearing for a wind turbine
CN111207256B (en) High-rotating-speed gas-liquid rotating distribution structure for rotary table
CN202963033U (en) Bearing for resisting thrust loads in two directions of rotating axis and assembly with bearing
CN215720253U (en) Needle bearing device
CN116104872A (en) Long-life anti-lock liquid hydrostatic axle box bearing for high-speed train
CN203702846U (en) Oscillating bar bearing
CN202531647U (en) Self-aligning roller bearing
CN210423710U (en) Split insertion type spiral mechanical sealing device
CN202659484U (en) Flexible shock-resistance mechanical sealing device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20201202

Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No.

Applicant after: CHINA NATIONAL PETROLEUM Corp.

Applicant after: CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd.

Address before: 710018 Shaanxi city of Xi'an province Weiyang District four road Fengcheng Changqing Technology Building

Applicant before: CNPC CHUANQING DRILLING ENGINEERING COMPANY LIMITED ENGINEERING TECHNOLOGY Research Institute

TA01 Transfer of patent application right