CN208330224U - Rope hanger and pumping unit - Google Patents
Rope hanger and pumping unit Download PDFInfo
- Publication number
- CN208330224U CN208330224U CN201820618778.2U CN201820618778U CN208330224U CN 208330224 U CN208330224 U CN 208330224U CN 201820618778 U CN201820618778 U CN 201820618778U CN 208330224 U CN208330224 U CN 208330224U
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- polished rod
- self
- aligning bearing
- groove
- inner ring
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- 238000005086 pumping Methods 0.000 title claims abstract description 12
- 239000000725 suspension Substances 0.000 claims abstract description 44
- 241001023788 Cyttus traversi Species 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 3
- 238000005096 rolling process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The application provides a polished rod eye and beam-pumping unit, the polished rod eye includes: the suspension body is provided with a through hole for penetrating the polish rod; a square clip is arranged on the polish rod; the self-aligning bearing is arranged above the suspension body and comprises an outer ring and an inner ring, the outer ring is fixed with the suspension body, the outer ring is provided with a spherical surface facing the inner ring, and the square clamp can abut against the inner ring so that the polished rod can drive the inner ring to rotate along the spherical surface after penetrating into the self-aligning bearing; a first groove is formed in the suspension body, the self-aligning bearing is located in the first groove, and a limiting part used for limiting the self-aligning bearing in the first groove is arranged on the upper end face of the suspension body; the limiting part is plate-shaped, a first through hole for penetrating the polish rod is formed in the plate-shaped limiting part, and the square clamp can abut against the upper end face of the limiting part after the polish rod penetrates through the first through hole. The application embodiment provides a rope hanger and a pumping unit capable of reducing bending moment.
Description
Technical field
This application involves technical field of oil production engineering more particularly to a kind of polished rod eyes and pumping unit.
Background technique
Polished rod eye is for connecting polished rod and horse head.
Polished rod eye in the prior art includes suspension ontology, is provided with the perforation worn for polished rod, light on the suspension ontology
The side's of being provided with clamp on bar.And hang the accommodation groove being provided on ontology for passing through for lifting rope.In the middle and later periods of oil field development,
Well liquid in oil well is aqueous to be continuously increased, more serious so as to cause sucker rod partial wear situation.And sucker rod partial wear necessarily leads to
The polished rod phenomenon not placed in the middle relative to blowout prevention box center.Another aspect horse head misaligns that also to can lead to polished rod not placed in the middle.Due to side
Clamp is that polished rod is tightly bitten by card tooth to drive entire rod string to work, so card tooth causes after biting polished rod
Stress is concentrated, and will generate additional bending moment to polished rod in the case where polished rod misaligns.Again because polished rod is by alternating load
Effect, therefore the position of polished rod generation moment of flexure is easy to happen fracture under the action of alternating load, so as to cause safety and environmental protection thing
Therefore.
Utility model content
In view of this, the application embodiment provides a kind of polished rod eye and pumping unit that can reduce moment of flexure.
To achieve the above object, this application provides the following technical solutions: a kind of polished rod eye, comprising: suspension ontology, institute
State the perforation being provided on suspension ontology for wearing polished rod；The side's of being provided with clamp on the polished rod；For wearing the polished rod
Self-aligning bearing, the self-aligning bearing be set to it is described suspension ontology top, the self-aligning bearing includes outer ring and inner ring, institute
It states outer ring mutually to fix with the suspension ontology, and the outer ring has the spherical surface in face of the inner ring, side's clamp can be with institute
It states inner ring to offset, so that the polished rod can drive the inner ring along the spherical rotation after being arranged in the self-aligning bearing.
As a preferred embodiment, the self-aligning bearing is aligning thrust bearing.
As a preferred embodiment, being provided with the first groove on the suspension ontology, the self-aligning bearing is located at
In first groove, it is provided on the upper surface of the suspension ontology recessed for the self-aligning bearing to be limited in described first
Locating part in slot.
As a preferred embodiment, the locating part is plate-like, it is arranged on the plate-like locating part useful
In the first through hole for wearing polished rod, side's clamp can be arranged in first through hole rear and limit in the polished rod
The upper surface of position part offsets.
As a preferred embodiment, the center of first groove and the center of the self-aligning bearing coincide.
As a preferred embodiment, being provided with the second groove for wearing lifting rope, institute on the suspension ontology
State the second groove be it is multiple, be provided with the limit hole for wearing lifting rope on the locating part, the limit hole be it is multiple, it is multiple
The limit hole is corresponding with multiple second grooves, so that the lifting rope being arranged in second groove can be arranged in
In the corresponding limit hole.
As a preferred embodiment, second groove includes opposite the first side wall, second sidewall, described
One side wall can be connected with the second sidewall by block piece, and the lifting rope is limited in second groove.
As a preferred embodiment, the suspension ontology is axially symmetric structure along the vertical direction, the aligning
The axis of bearing and the axis of the suspension ontology coincide.
A kind of pumping unit, comprising: driving device；With the walking beam of driving device transmission connection；It is connected with the walking beam
The horse head connect；Polished rod eye as described above；The sucker rod being threaded through on the suspension ontology；Lifting rope, one end of the lifting rope with
The horse head is connected, and the lifting rope other end is connected with the suspension ontology, and the horse head can be driven by the lifting rope
The polished rod eye moves up and down.
As a preferred embodiment, the inner ring diameter of the self-aligning bearing is greater than the diameter of the polished rod.
By above technical solution, polished rod eye described in the application embodiment and pumping unit pass through on suspension ontology
Self-aligning bearing is set, since the outer ring of self-aligning bearing has the spherical surface in face of inner ring, so inner ring globally rotates.To work as light
When bar misaligns generation moment of flexure, square clamp offsets with inner ring, and inner ring can drive polished rod edge after polished rod be arranged in self-aligning bearing
Spherical rotation even is eliminated moment of flexure to reduce.Therefore the application embodiment provides a kind of polished rod eye that can reduce moment of flexure
And pumping unit.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed in the present application in any way
It encloses.In addition, shape and proportional sizes of each component in figure etc. are only schematical, it is used to help the understanding to the application, and
It is not the specific shape and proportional sizes for limiting each component of the application.Those skilled in the art, can under teachings of the present application
Implement the application to select various possible shapes and proportional sizes as the case may be.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the polished rod eye of the application embodiment；
Fig. 2 is the cross-sectional view in Fig. 1 along the direction A-A.
Specific embodiment
Below in conjunction with the attached drawing in the application embodiment, the technical solution in the application embodiment is carried out clear
Chu is fully described by, it is clear that described embodiment is only a part of embodiment of the application, rather than whole realities
Apply mode.Based on the embodiment in the application, those of ordinary skill in the art institute without creative efforts
The every other embodiment obtained, shall fall in the protection scope of this application.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.
Please refer to Fig. 1, Fig. 2, a kind of polished rod eye provided by present embodiment, comprising: suspension ontology 11, the suspension is originally
The perforation 15 for wearing polished rod 13 is provided on body 11；The side's of being provided with clamp 17 on the polished rod 13；For wearing the light
The self-aligning bearing of bar 13, the self-aligning bearing are set to the top of the suspension ontology 11, and the self-aligning bearing includes outer ring 37
With inner ring 39, the outer ring 37 is fixed with 11 phase of suspension ontology, and the outer ring 37 has the ball in face of the inner ring 39
Face 21, side's clamp 17 can offset with the inner ring 39, so that the inner ring 39 can be arranged in the tune in the polished rod 13
Mandrel is held the interior rear driving polished rod 13 and is rotated along the spherical surface 21.
In use, polished rod 13 is arranged in perforation 15 first, and polished rod 13 is arranged in self-aligning bearing, and side's card
Son 17 is located at the top of self-aligning bearing.When upstroke, the inner ring 39 of square clamp 17 and self-aligning bearing offsets, so that 13 institute of polished rod
The load of receiving passes through square clamp 17 and acts on the inner ring 39 of self-aligning bearing.Since the outer ring 37 of self-aligning bearing has in face of interior
The spherical surface 21 of circle 39, so inner ring 39 can globally 21 rotation.Such inner ring 39 can be after polished rod 13 be arranged in self-aligning bearing
Globally 21 rotation of polished rod 13 is driven, so that the moment of flexure can be with polished rod 13 globally when polished rod 13 misaligns and generates moment of flexure
21 rotations, are lowered and even are eliminated.
The polished rod eye described in the application embodiment it can be seen from above scheme is adjusted by being arranged on suspension ontology 11
Mandrel is held, since the outer ring 37 of self-aligning bearing has the spherical surface 21 in face of inner ring 39, so globally 21 rotation of inner ring 39.To
When polished rod 13, which misaligns, generates moment of flexure, square clamp 17 offsets with inner ring 39, and inner ring 39 can be arranged in self-aligning bearing in polished rod 13
Driving polished rod 13 globally 21 rotation after interior, even is eliminated moment of flexure to reduce.Therefore the application embodiment provides one kind
The polished rod eye of moment of flexure can be reduced.
As shown in Figure 1 and Figure 2, in the present embodiment, suspension ontology 11 is in rectangle on the whole, certain suspension ontology 11
Shape it is without being limited thereto, can also be other shapes, such as trapezoidal etc., this application do not provided.Ontology 11 is hung to wrap
Include middle section and the peripheral portion positioned at middle section periphery.The perforation for wearing for polished rod 13 is provided on middle section
15, the second groove 27 passed through for lifting rope 25 is provided on the peripheral portion.Further, the second groove 27 is multiple, multiple
Second groove 27 is around 15 setting of perforation.Thus when being equipped with lifting rope 25 respectively in multiple second grooves 27, it can be by lifting rope 25
It is connected with horse head, so that polished rod 13 can be hung on horse head.Further, the second groove 27 up and down, and the second groove 27
Lower end inner wall be recessed form limiting stand outward, which has downward confined planes, which can wear in lifting rope 25
After in the second groove 27, the steel pendant of lifting rope 25 is limited, to be promoted by lifting rope 25 by ontology 11 is hung.Into one
Step ground, the upper end side of the being provided with clamp 17 of polished rod 13.
In the present embodiment, self-aligning bearing is for wearing polished rod 13.Thus after polished rod 13 is arranged in self-aligning bearing,
Inner ring 39 can drive spherical surface 21 of the polished rod 13 along outer ring 37 to rotate.Self-aligning bearing includes outer ring 37 and inner ring 39.Outer ring 37 and outstanding
11 phase of ontology is hung to fix.The fixation such as can be welding, be clamped, be embedded at the connection types.Outer ring 37 has the ball in face of inner ring 39
Face 21.The center of the spherical surface 21 and the center of bearing are consistent, so that outer ring 37 can globally 21 rotation.Specifically, outer ring 37
Rolling element 41 is provided between inner ring 39, one end and the outer ring 37 of the rolling element 41 offset, the other end of the rolling element 41 with
Inner ring 39 offsets, so that rolling element 41 can be reduced the frictional force between inner ring 39 and outer ring 37, is conducive to inner ring 39 and outer ring 37
Between relative rotation.Self-aligning bearing is set to the top of suspension ontology 11.And self-aligning bearing is for the side's of being installed on clamp 17
Lower section.To which square clamp 17 can offset with inner ring 39, so that inner ring 39 can drive light after polished rod 13 is arranged in self-aligning bearing
Globally 21 rotation of bar 13.To which when polished rod 13 misaligns and generates moment of flexure, which 21 can globally rotate with polished rod 13,
It is lowered and even is eliminated.Preferably, which is aligning thrust bearing.
In one embodiment, it hangs on ontology 11 and is provided with the first groove 23, self-aligning bearing is located at the first groove 23
It is interior.In order to guarantee that self-aligning bearing is steadily limited in the first groove 23.It hangs to be provided on the upper surface of ontology 11 and be used for
Self-aligning bearing is limited in the locating part 29 in the first groove 23.Specifically, locating part 29 is plate-like, plate-like locating part 29
On be provided with the first through hole 33 for wearing polished rod 13, square clamp 17 can be after polished rod 13 be arranged in the first through hole 33
It offsets with the upper surface of locating part 29.
Preferably, in order to guarantee more can smoothly cooperate between each component of polished rod eye, each component is in the process of movement
The interference of other component is not will receive.The center of first groove 23 and the center of self-aligning bearing coincide.To which polished rod 13 is worn
When in perforate 15 and self-aligning bearing, the axis of polished rod 13 can be coaxial with the first groove 23 and self-aligning bearing.Work as polished rod eye
When carrying out oil producing operation, suspension ontology 11, self-aligning bearing, groove and polished rod 13 guarantee each portion all with the axisymmetrical
The stress equalization of part.
Preferably, the transversal cross-section of the first groove 23 is circle, and the diameter of the first groove 23 is greater than the outer diameter of self-aligning bearing.
To which self-aligning bearing can rotate in the first groove 23 relative to suspension ontology 11, and then self-aligning bearing is limited in the first groove
In 23, to prevent self-aligning bearing to be separated under by active force with suspension ontology 11.
Further, the second groove 27 is multiple, and the limit hole 31 for wearing lifting rope 25 is provided on locating part 29, is limited
Position hole 31 be it is multiple, multiple limit holes 31 are corresponding with multiple second grooves 27, so as to be arranged in the lifting rope in the second groove 27
25 can be arranged in corresponding limit hole 31.To be used to prevent 25 torsional deformation of lifting rope when locating part 29.Preferably, second
Groove 27 includes opposite the first side wall, second sidewall, and the first side wall can be connected by block piece 35 with second sidewall, will be hung
Rope 25 is limited in the second groove 27.
Preferably, suspension ontology 11 is axially symmetric structure along the vertical direction, the axis and suspension ontology 11 of self-aligning bearing
Axis coincide.
The utility model additionally provides a kind of pumping unit comprising: driving device；With the trip of driving device transmission connection
Beam；The horse head being connected with walking beam；Polished rod eye as described above；The sucker rod being threaded through on suspension ontology 11；Lifting rope 25, lifting rope 25
One end be connected with horse head, 25 other end of lifting rope with suspension ontology 11 be connected, horse head can pass through lifting rope 25 drive polished rod eye
It moves up and down.
It should be noted that term " first ", " second " etc. are used for description purposes only and distinguish in the description of the present application
Similar object between the two and is not present sequencing, can not be interpreted as indication or suggestion relative importance.In addition,
In the description of the present application, unless otherwise indicated, the meaning of " plurality " is two or more.
It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch
It states, many embodiments and many applications except provided example all will be aobvious and easy for a person skilled in the art
See.Therefore, the range of this introduction should not be determined referring to foregoing description, but should referring to preceding claims and this
The full scope of the equivalent that a little claims are possessed determines.For comprehensive purpose, all articles and with reference to including special
The disclosure of benefit application and bulletin is all by reference to being incorporated herein.Theme disclosed herein is omitted in preceding claims
Any aspect is not intended to abandon the body matter, also should not be considered as applicant the theme is not thought of as it is disclosed
Apply for a part of theme.
Claims (10)
1. a kind of polished rod eye characterized by comprising
Ontology is hung, the perforation for wearing polished rod is provided on the suspension ontology；The side's of being provided with clamp on the polished rod；
For wearing the self-aligning bearing of the polished rod, the self-aligning bearing is set to the top of the suspension ontology, the aligning
Bearing includes outer ring and inner ring, and the outer ring is mutually fixed with the suspension ontology, and the outer ring has in face of the inner ring
Spherical surface, side's clamp can offset with the inner ring, so that the inner ring can be arranged in the self-aligning bearing in the polished rod
After drive the polished rod along the spherical rotation.
2. polished rod eye according to claim 1, it is characterised in that: the self-aligning bearing is aligning thrust bearing.
3. polished rod eye according to claim 1, it is characterised in that: it is provided with the first groove on the suspension ontology, it is described
Self-aligning bearing is located in first groove, is provided on the upper surface of the suspension ontology for limiting the self-aligning bearing
Locating part in first groove.
4. polished rod eye according to claim 3, it is characterised in that: the locating part is plate-like, the plate-like limit
The first through hole for wearing polished rod is provided on part, side's clamp can be arranged in first through hole in the polished rod
It offsets after interior with the upper surface of the locating part.
5. polished rod eye according to claim 3, it is characterised in that: the center of first groove and the self-aligning bearing
Center coincides.
6. polished rod eye according to claim 3, it is characterised in that: be provided on the suspension ontology for wearing lifting rope
Second groove, second groove be it is multiple, the limit hole for wearing lifting rope, the limit hole are provided on the locating part
To be multiple, multiple limit holes are corresponding with multiple second grooves, so as to be arranged in described in second groove
Lifting rope can be arranged in the corresponding limit hole.
7. polished rod eye according to claim 6, it is characterised in that: second groove includes opposite the first side wall,
Two side walls, the first side wall and the second sidewall can be connected by block piece, and the lifting rope is limited in described second
In groove.
8. polished rod eye according to claim 1, it is characterised in that: the suspension ontology is axial symmetry knot along the vertical direction
Structure, the axis of the self-aligning bearing and the axis of the suspension ontology coincide.
9. a kind of pumping unit characterized by comprising
Driving device；
With the walking beam of driving device transmission connection；
The horse head being connected with the walking beam；
Polished rod eye as described in claim 1 to 8 any one；
The sucker rod being threaded through on the suspension ontology；
Lifting rope, one end of the lifting rope are connected with the horse head, and the lifting rope other end is connected with the suspension ontology, institute
Stating horse head can drive the polished rod eye to move up and down by the lifting rope.
10. pumping unit according to claim 9, it is characterised in that: the inner ring diameter of the self-aligning bearing is greater than the light
The diameter of bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820618778.2U CN208330224U (en) | 2018-04-27 | 2018-04-27 | Rope hanger and pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820618778.2U CN208330224U (en) | 2018-04-27 | 2018-04-27 | Rope hanger and pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208330224U true CN208330224U (en) | 2019-01-04 |
Family
ID=64778637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820618778.2U Active CN208330224U (en) | 2018-04-27 | 2018-04-27 | Rope hanger and pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208330224U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424904A (en) * | 2019-09-03 | 2019-11-08 | 王瑞东 | Integral type polished rod eye |
| CN114075946A (en) * | 2020-08-11 | 2022-02-22 | 中国石油天然气股份有限公司 | Pumping unit polished rod descaling device |
| CN115354986A (en) * | 2022-08-10 | 2022-11-18 | 鞍山捷高科技有限公司 | Polished rod sealing assembly |
-
2018
- 2018-04-27 CN CN201820618778.2U patent/CN208330224U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424904A (en) * | 2019-09-03 | 2019-11-08 | 王瑞东 | Integral type polished rod eye |
| CN114075946A (en) * | 2020-08-11 | 2022-02-22 | 中国石油天然气股份有限公司 | Pumping unit polished rod descaling device |
| CN115354986A (en) * | 2022-08-10 | 2022-11-18 | 鞍山捷高科技有限公司 | Polished rod sealing assembly |
| CN115354986B (en) * | 2022-08-10 | 2023-10-03 | 鞍山捷高科技有限公司 | Polished rod sealing assembly |
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