CN2558756Y - Friction welded steel pumping rod - Google Patents
Friction welded steel pumping rod Download PDFInfo
- Publication number
- CN2558756Y CN2558756Y CN 02240550 CN02240550U CN2558756Y CN 2558756 Y CN2558756 Y CN 2558756Y CN 02240550 CN02240550 CN 02240550 CN 02240550 U CN02240550 U CN 02240550U CN 2558756 Y CN2558756 Y CN 2558756Y
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- CN
- China
- Prior art keywords
- rod
- friction welding
- model
- utility
- pumping rod
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- Expired - Lifetime
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- Pressure Welding/Diffusion-Bonding (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model relates to a steel sucker rod for friction welding, comprising an upper joint, a lower joint and a rod body. The utility model is characterized in that the upper parts of the upper joint and the lower joint are respectively provided with pin threads or one end with a box thread, the middle part is provided with an edge for a clamping wrench and a semielliptical groove is arranged on the end of the lower part along the direction of axis; the rod takes the shape of cylinder, two ends thereof are respectively provided with square spigots, larger than the external diameter of the rod body, a square spigot symmetrical to the semielliptical groove arranged on the upper and lower joints is arranged along the direction of axis, the two grooves are aligned, rubbed and welded together to form complete the steel sucker rod for friction welding.
Description
One, technical field
The utility model relates to the pumping rod made by steel of the used friction welding of a kind of oil pumper.
Two, background technology
The comparatively ripe production technology of domestic common sucker rod is: adopt hot rolling roundwood material, and earlier with the bar head mould forging molding of horizontal forging and upsetting machine with two ends, bulk heat treatmet again, last threading joint, shoulder, load groove.This technology can satisfy the manufacturing of the sucker rod of plurality of specifications model, but but is difficult to satisfy the processing that the extraordinary special type sucker rod that requires is arranged.
Existing friction welding production technology is to adopt friction welding that two soldering tips are welded in isodiametric body of rod two ends, or the male connection of two band shoulders is welded on the shoulder of sucker rod.
The structure of above-mentioned rod connector and body of rod welding position and rod connector, directly influence the friction welding effect, make the solder side not prison welding, break-off accident takes place in solder side place often in producing use, make a big impact for the oil field crude oil production, rate when reducing oil well production reduces crude output, increase well workover number of times and workover cost, bring unnecessary economic loss to the oil field.
Three, summary of the invention
The purpose of this utility model is the defective for the existence that overcomes above-mentioned sucker rod, designs a kind of pumping rod made by steel of novel friction welding.
The technical solution of the utility model realizes in the following manner:
The utility model is made up of the last lower contact and the body of rod, it is characterized in that the top separately of lower contact is provided with male thread, or an end is provided with box thread, and the middle part is provided with the rib of card spanner, and lower end surface is provided with a half elliptic groove along axis direction; The body of rod is cylindrical, its both ends are provided with the square spigot greater than body of rod external diameter separately, be provided with a symmetrical half elliptic groove of half elliptic groove that is provided with last lower contact along axis direction, two groove surfaces alignment friction welding constitutes the pumping rod made by steel of complete friction welding together.
The utility model compared with prior art, its distinguishing feature is the welded construction that has designed a kind of suitable friction-welding technique, has improved the comprehensive mechanical property of solder side, has strengthened the intensity of sucker rod antifatigue.
Four, description of drawings
The structure of Fig. 1-the utility model one end and the structural representation of solder side
The schematic diagram of Fig. 2-joint of the present utility model and body of rod solder side
Five, embodiment
For further disclosing the technical solution of the utility model, existing face is described in detail by embodiment in conjunction with Figure of description:
The utility model is made up of the last lower contact 1 and the body of rod 2, it is characterized in that the top separately of lower contact is provided with male thread, and the middle part is provided with the rib of card spanner, and lower end surface is square and is provided with a half elliptic groove along axis direction; The body of rod is cylindrical, its both ends are provided with the square spigot greater than body of rod external diameter separately, be provided with a symmetrical half elliptic groove of half elliptic groove that is provided with last lower contact along axis direction, two groove surfaces alignment friction welding constitutes the pumping rod made by steel of complete friction welding together.
Concise and to the point production technology is as follows:
Select high-strength material processing rod head (as shown in accompanying drawing one 1) for use, barre head 1 forges solder side and processes the half elliptic groove, welds together with the body of rod 2 through bulk heat treatmet.This technology point that goes out is the selection of welding position, the half elliptic groove that processes man-hour as shown in the figure in adding of the bar head and the body of rod simultaneously.Then, use Continuous Drive Friction Welding and connect technology, the bar head-clamp is held in the special fixture with constant rotating speed rotation, the body of rod is clamped in welding and moves axially in the anchor clamps and move forward, and body of rod solder side contacts with the club head face of rotation, exerts pressure, produce frictional heat, reach the certain fraction time or the burnoff length of regulation, the locking lever head rotates immediately, simultaneously the bar head is applied bigger upsetting force.The bar head produces certain plastic deformation under the upsetting force effect, after keeping a period of time, unclamp two chucks, and finish the welding of bar head rod body.After welding was finished, butt welded seam carried out temper, guaranteed the metallographic structure that sucker rod requires.
This processing technology has higher automaticity, can realize automatic detection, the feedback store of solder flux technological parameter.
This method and technology not only are fit to common D grade pumping rod, and be more suitable in the manufacturing of super-strength sucker rod and KD grade pumping rod, when well having solved heat treatment, it can't determine because of the capable shape of bar head changes the complexity heat treatment parameter, the intensity that causes the bar head is good not as the body of rod, and the problem that in use occurs breaking, taking off etc.; Also solved because of bar head insufficient strength, and influenced the problem in application life.
Claims (1)
1, a kind of pumping rod made by steel of friction welding, be made up of the last lower contact and the body of rod, it is characterized in that: the top separately of going up lower contact is provided with male thread, or an end is provided with box thread, the middle part is provided with the rib of card spanner, and lower end surface is provided with a half elliptic groove along axis direction; The body of rod is cylindrical, its both ends are provided with the square spigot greater than body of rod external diameter separately, be provided with a symmetrical half elliptic groove of half elliptic groove that is provided with last lower contact along axis direction, two groove surfaces alignment friction welding constitutes the pumping rod made by steel of complete friction welding together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02240550 CN2558756Y (en) | 2002-06-17 | 2002-06-17 | Friction welded steel pumping rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02240550 CN2558756Y (en) | 2002-06-17 | 2002-06-17 | Friction welded steel pumping rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2558756Y true CN2558756Y (en) | 2003-07-02 |
Family
ID=33713637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02240550 Expired - Lifetime CN2558756Y (en) | 2002-06-17 | 2002-06-17 | Friction welded steel pumping rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2558756Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120069A (en) * | 2017-05-08 | 2017-09-01 | 东营市江宇石油机械有限公司 | One kind repairs sucker rod |
| CN107152244A (en) * | 2016-03-04 | 2017-09-12 | 特纳瑞斯连接有限公司 | Sucker rod end |
-
2002
- 2002-06-17 CN CN 02240550 patent/CN2558756Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152244A (en) * | 2016-03-04 | 2017-09-12 | 特纳瑞斯连接有限公司 | Sucker rod end |
| CN107120069A (en) * | 2017-05-08 | 2017-09-01 | 东营市江宇石油机械有限公司 | One kind repairs sucker rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENGLI OILFIELD FURIUTE OIL EQUIPMENT CO.,LTD. Free format text: FORMER NAME OR ADDRESS: ENGINEERING MACHINERY GENERAL FACTORY, SHENGLI PETROLEUM ADMINISTRATION |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Shengli Oil Field Furuite Petroleum Equipment Co., Ltd. Patentee before: Engineering Machinery Plant, Shengli Petroleum Administration |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120617 Granted publication date: 20030702 |