CN202645452U - Sucker rod provided with rod heads of cambered surface ball head - Google Patents
Sucker rod provided with rod heads of cambered surface ball head Download PDFInfo
- Publication number
- CN202645452U CN202645452U CN 201220302531 CN201220302531U CN202645452U CN 202645452 U CN202645452 U CN 202645452U CN 201220302531 CN201220302531 CN 201220302531 CN 201220302531 U CN201220302531 U CN 201220302531U CN 202645452 U CN202645452 U CN 202645452U
- Authority
- CN
- China
- Prior art keywords
- rod
- cambered surface
- sucker rod
- thread sleeve
- heads
- 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.)
- Expired - Lifetime
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Abstract
The utility model provides a sucker rod provided with rod heads of a cambered surface ball head. The sucker rod comprises an internal thread sleeve hoop and an external thread sleeve hoop, wherein the internal thread sleeve hoop is provided with internal threads and an internal thread sleeve hoop rod head leaning table, the external thread sleeve hoop is provided with external threads, an external thread sleeve hoop rod head leaning table and a hollow knife portion, and the internal thread sleeve hoop and the external thread sleeve hoop are connected with each other in a screwed mode to form a rod head cavity. The rod heads which are provided with rod head leaning tables and cambered surface ball heads are oppositely arranged in the rod head cavity, and the rod heads are connected with the sucker rod. The sucker rod provided with the rod heads of the cambered surface ball head has the advantages of being good in tensile property, convenient to assemble and disassemble, and at the same time, preventing tripping and eccentric wear. Therefore, the sucker rod provided with the rod heads of the cambered surface ball head is suitable for being applied to oil extraction of a pumping unit.
Description
Technical field
The utility model provides the parts in oil recovery machiner field, specifically is provided with the sucker rod of cambered surface ball rod head.
Background technology
According to the requirement to rod string of the technique of pumping production, need the connection between the sucker rod not thread off, more to be convenient to dismounting.Phenomenon occurs but present China the type product is threaded off in addition.For solving this deficiency, need development arc women's head-ornaments bar head to connect sucker rod.
Summary of the invention
Connect the shortcoming that exists in order to overcome existing sucker rod, the utility model provides the sucker rod that is provided with cambered surface ball rod head.This sucker rod is set to cambered surface bulb shape by the bar head, solves sucker rod for oil sucking machine and prevents the technical problem of threading off.
The scheme that the utility model technical solution problem adopts is: the internal thread cuff that is provided with internal thread and internal thread cuff bar head rest platform, spin with the external screw thread cuff that is provided with external screw thread and external screw thread cuff bar head rest platform, empty cutter section, in the bar head cavity that consists of, bar head with bar head rest platform and cambered surface bulb is installed relatively, and the bar head is connected with sucker rod.
Good effect, because the utility model cambered surface ball rod head sucker rod tensile property is good, it is convenient to install and remove, and possesses simultaneously the advantage of anti-tripping, anti-eccentric wear.Suit to use as pumping production.
Description of drawings
Fig. 1 is the utility model sucker rod structure chart
Fig. 2 is the utility model cambered surface ball rod head sucker rod structural representation
Fig. 3 is the utility model internal thread cuff sectional view
Fig. 4 is the utility model external screw thread cuff sectional view
Among the figure, 1. sucker rod, 1.1. bar head, 1.2. bar head rest platform, 1.3. the cambered surface bulb, 2.1. internal thread cuff, 2.11. internal thread cuff bar head rest platform, 2.12. internal thread, 2.2. the external screw thread cuff, 2.21. external screw thread cuff bar head rest platform, 2.22. external screw thread, the empty cutter of 2.23. section.
The specific embodiment
According to the figure, be provided with the internal thread cuff 2.1 of internal thread 2.12 and internal thread cuff bar head rest platform 2.11, spin in the bar head cavity that consists of with the external screw thread cuff 2.2 that is provided with external screw thread 2.22 and external screw thread cuff bar head rest platform 2.21, empty cutter section 2.23, bar head 1.1 with bar head rest platform 1.2 and cambered surface bulb 1.3 is installed relatively, and the bar head is connected with sucker rod 1.
Bar head cambered surface bulb assembly building distance is 0.5～1 millimeter relatively.
Described empty cutter section is lathe processing reserved part.
The bar head with cambered surface bulb that relatively assembles in the bar head cavity, every end bar head and sucker rod can freely rotate in the bar head cavity separately.
Characteristics of the present utility model:
1, because sucker rod cambered surface bulb assembles relatively, has the effect that prevents that the internal and external threads cuff from threading off.
2, simple in structure, be convenient to make and dismounting, can shorten the activity duration of going into the well, playing well.
3, can alleviate the cuff external diameter to the eccentric wear of pipe aperture, because sucker rod can freely rotate, solve rigidly connected drawback in the bar head cavity.
4, the sucker rod of the utility model form of structure is applicable to install and use on the oil pumper.
Claims (2)
1. be provided with the sucker rod of cambered surface ball rod head, it is characterized in that: the internal thread cuff (2.1) that is provided with internal thread (2.12) and internal thread cuff bar head rest platform (2.11), spin in the bar head cavity that consists of with the external screw thread cuff (2.2) that is provided with external screw thread (2.22) and external screw thread cuff bar head rest platform (2.21), empty cutter section (2.23), bar head (1.1) with bar head rest platform (1.2) and cambered surface bulb (1.3) is installed relatively, and the bar head is connected with sucker rod (1).
2. the sucker rod that is provided with cambered surface ball rod head according to claim 1 is characterized in that: bar head cambered surface bulb assembly building is apart from being 0.5～1 millimeter relatively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220302531 CN202645452U (en) | 2012-06-27 | 2012-06-27 | Sucker rod provided with rod heads of cambered surface ball head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220302531 CN202645452U (en) | 2012-06-27 | 2012-06-27 | Sucker rod provided with rod heads of cambered surface ball head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202645452U true CN202645452U (en) | 2013-01-02 |
Family
ID=47414574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220302531 Expired - Lifetime CN202645452U (en) | 2012-06-27 | 2012-06-27 | Sucker rod provided with rod heads of cambered surface ball head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202645452U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733759A (en) * | 2012-06-27 | 2012-10-17 | 葫芦岛龙源采油配套设备有限公司 | Sucker rod with cambered-surface ball joint rod head |
-
2012
- 2012-06-27 CN CN 201220302531 patent/CN202645452U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733759A (en) * | 2012-06-27 | 2012-10-17 | 葫芦岛龙源采油配套设备有限公司 | Sucker rod with cambered-surface ball joint rod head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
|
| CX01 | Expiry of patent term |