CN201924841U - Bidirectional protective sucker-rod coupling - Google Patents
Bidirectional protective sucker-rod coupling Download PDFInfo
- Publication number
- CN201924841U CN201924841U CN2011200244173U CN201120024417U CN201924841U CN 201924841 U CN201924841 U CN 201924841U CN 2011200244173 U CN2011200244173 U CN 2011200244173U CN 201120024417 U CN201120024417 U CN 201120024417U CN 201924841 U CN201924841 U CN 201924841U
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- main body
- alloy powder
- sucker
- processed
- hot spraying
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- Expired - Fee Related
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Abstract
The utility model relates to a bidirectional protective sucker-rod coupling, which comprises a main body, wherein the main body adopts a cylinder, threads are processed in the main body, a wrench groove is processed on the outer surface of the main body, and a round-corner transition relationship is arranged at two ends of the main body; and an antiwear coating is arranged on the main body by hot spraying, wherein an alloy powder is arranged on the antiwear coating, for example, Ni-base alloy powder, the height of the antiwear coating is greater than 0.25 mm, the hardness is higher than HRC50, and the surface roughness is lower than 0.004 mm. After the antiwear coating is arranged on the surface of the main body through hot spraying, the surface of the main body is polished, so that the bidirectional protective sucker-rod coupling is high in surface smoothness, high in hardness and low in friction coefficient, reduces wear, meanwhile, prolongs the service life of the oil tube and the sucker rod, achieve the purpose of bidirectional protection and had remarkable economic benefit.
Description
Technical field
The utility model is the equipment that oil field pumping well is used, and is a kind of two-way protecting beam-pumping unit connected hoop.
Background technology
In the oil well of producing with oil well pump, sucker rod connects the plunger of oil well pump, and sucker rod pumps in oil pipe, makes oil well pump work that crude oil in the well is evacuated to ground.No matter be straight well, or inclined shaft, all be in contacting, to move between the sucker rod of this oil pumping system and the oil pipe, so there is the friction and wear problem.In order to prevent the wearing and tearing between sucker rod and the oil pipe, taked many abrasionproof measures, wherein a kind of is that centralizer is installed on rod string, but the material of centralizer is nonmetal, and not wear-resistant, application life is short, and the abrasionproof phase is short.
Summary of the invention
The purpose of this utility model provides a kind of two-way protecting beam-pumping unit connected hoop, reduces the wearing and tearing between sucker rod and the oil pipe, increases the oil well production cycle, reduces workover cost.
The purpose of this utility model has been achieved in that body, body is a cylinder, processed screw thread in body, this external surface is processed with the spanner groove, and the body two ends are round-corner transition, the hot spraying wearing layer is arranged on the body, the hot spraying wearing layer is an alloy powder, and as nickel-base alloy powder, jetting thickness is greater than 0.25mm, hardness is higher than HRC 50, and surface roughness is lower than 0.0004mm.
The beneficial effects of the utility model are: owing to polish processing again behind the body surface hot spraying wearing layer; make its finish height; the hardness height; friction factor is low; wearing and tearing alleviate; can prolong the application life of oil pipe, sucker rod simultaneously, reach the purpose of bidirectional protective, have remarkable economic efficiency.
Description of drawings
Accompanying drawing is the utility model embodiment full sectional view.
The specific embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described.
As shown in the figure, body 1 is a cylinder, in body 1, processed screw thread 3, screw thread is the sucker rod connecting thread, body 1 external surface is processed with spanner groove 4, is convenient to unload on the assembly wrench body screw thread, and body 1 two ends are round-corner transition, avoid causing damaged surfaces with the tube inner wall collision in the process of removing, hot spraying wearing layer 2 is arranged on the body 1.Hot spraying wearing layer 2 is an alloy powder, as nickel-base alloy powder.Jetting thickness is greater than 0.25mm, and hardness is higher than HRC 50, and is wear-resisting, corrosion-resistant.Processing is polished to the surface in hot spraying wearing layer 2 back, and surface roughness is lower than 0.0004mm, and the friction factor of itself and oil pipe is reduced to below 0.01, and except that self was wear-resisting, the oil pipe that also can not wear and tear had played the effect of bidirectional protective.
Claims (1)
1. two-way protecting beam-pumping unit connected hoop; body (1) is arranged, and body (1) is a cylinder, has processed screw thread (3) in body (1); body (1) external surface is processed with spanner groove (4); body (1) two ends are round-corner transition, it is characterized in that: hot spraying wearing layer (2) is arranged on the body (1), and hot spraying wearing layer (3) is an alloy powder; as nickel-base alloy powder; jetting thickness is greater than 0.25mm, and hardness is higher than HRC50, and surface roughness is lower than 0.0004mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200244173U CN201924841U (en) | 2011-01-21 | 2011-01-21 | Bidirectional protective sucker-rod coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200244173U CN201924841U (en) | 2011-01-21 | 2011-01-21 | Bidirectional protective sucker-rod coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201924841U true CN201924841U (en) | 2011-08-10 |
Family
ID=44428699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200244173U Expired - Fee Related CN201924841U (en) | 2011-01-21 | 2011-01-21 | Bidirectional protective sucker-rod coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201924841U (en) |
-
2011
- 2011-01-21 CN CN2011200244173U patent/CN201924841U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20120121 |