CN201080791Y - Pumping rod centralizing wheel hoop type roller joint - Google Patents
Pumping rod centralizing wheel hoop type roller joint Download PDFInfo
- Publication number
- CN201080791Y CN201080791Y CNU200720099904XU CN200720099904U CN201080791Y CN 201080791 Y CN201080791 Y CN 201080791Y CN U200720099904X U CNU200720099904X U CN U200720099904XU CN 200720099904 U CN200720099904 U CN 200720099904U CN 201080791 Y CN201080791 Y CN 201080791Y
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- CN
- China
- Prior art keywords
- joint
- roller
- joint body
- sucker rod
- rim
- 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 - Fee Related
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Abstract
The utility model relates to a sucker rod righting tire type rolling wheel joint, which comprises a joint body with both ends respectively provided threads and nuts, and the joint body is provided with rolling wheel grooves and is pin-jointed with rolling wheels by pin shafts. The utility model is characterized in that: a plurality of equi-spaced rolling wheel grooves forming included angles are arranged on the joint body along the longitudinal axis direction. The utility model has the functional effects that: in the pumping well produced on the oilfield, the contact attrition produced during the relative motion of the sucker rod and the oil pipe is avoided so as to prevent pipes and rods from leaking and breaking off by abrasion and extend the service life, then the advantages of wear resistance and labor saving of the nylon rolling wheel and the even abrasion of the edge of the wheel axle can be exerted fully.
Description
Technical field
The utility model belongs to the sucker rod accessory, relates in particular to a kind of sucker rod and sets upright rim formula roller joint.
Background technology
At present, in the pumpingh well of field produces, there is contact friction problem in sucker rod and the oil pipe relative motion, causes managing bar and leaked, break and take off by mill in a short time, its life-span is reduced greatly.Usually adopt and set upright the roller type joint and solve eccentric wear, the defective of its existence: (1), because the little axle of the metal of roller is to be welded on the joint body causes axle to increase frictional resistance concerning wheel; (2), the roller when employing is a nylon material, when nylon wheel during in hole deviation and sucker rod uplink and downlink out-of-step, relative motion very easily produces eccentric wear between pipe and bar, causes side of nylon wheel to cling to the cell wall of joint wheel, then makes wheel and groove form very big frictional resistance.Simultaneously, when the viscous crude in oil well, sand, medium such as cured fill up in the groove of joint wheel, the more difficult rotation of roller.Owing to there is above defective, a side of nylon wheel is ground to joint body very soon, has shortened the application life of sucker rod, make the nylon roller wear-resisting, laborsaving, wheel shaft advantage such as edge uniform wear and fail to be not fully exerted.Therefore most of oil field has not re-used and has set upright the roller type joint.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and provide a kind of sucker rod to set upright rim formula roller joint, in the pumpingh well of field produces, contact friction when solving sucker rod and oil pipe relative motion, in order to prevent that pipe, bar short-term from being ground Lou, disconnected taking off, prolong its application life.
The utility model for achieving the above object, by the following technical solutions: a kind of sucker rod is set upright rim formula roller joint, comprise that two ends are respectively equipped with the joint body of screw thread, nut, joint body is provided with roller groove and is connected with roller by bearing pin, it is characterized in that: its y direction of described joint body upper edge is angle and some roller grooves equidistantly is set.
The angle along between its y direction of described roller groove plane and joint body is 45 °.
Described bearing pin places the joint body blind hole and is movingly with it, and the bearing pin outboard end is provided with welding gasket.
Described roller is made up of rim and wheel, takes turns in the prefabricated groove that is embedded in rim.
Described rim adopts metal material to make, and wheel adopts nylon material to make.
The beneficial effects of the utility model: in the pumpingh well of field produces, contact friction when solving sucker rod and oil pipe relative motion, in order to prevent that pipe, bar short-term from being ground Lou, disconnected taking off, prolong its application life, the edge uniform wear advantage wear-resisting, laborsaving, wheel shaft of nylon roller is given full play of.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of roller.
The specific embodiment
As shown in the figure, a kind of sucker rod is set upright rim formula roller joint, comprise that two ends are respectively equipped with screw thread 1-1, the joint body 1 of nut 1-2, joint body and are provided with roller groove 2 and are connected with roller 4 by bearing pin 3, its y direction of described joint body upper edge is angle and some roller grooves equidistantly is set.The angle along between its y direction of described roller groove plane and joint body is 45 °.Described bearing pin places joint body blind hole 5 and is movingly with it, and the bearing pin outboard end is provided with welding gasket 6, adopts welding method that bearing pin and welding gasket are enclosed in the joint body blind hole.Described roller is made up of rim 7 and wheel 8, takes turns in the prefabricated groove that is embedded in rim.Described rim adopts metal material to make, and wheel adopts nylon material to make.Operating principle: be divided into because the rim formula is set upright the design feature of roller joint: (1), metal bearing pin separate on joint body by welded gasket, and therefore, axle can be movable, and axle is to have reduced frictional resistance to taking turns.(2), nylon wheel is set on the rim, rim is easy to touch a side of joint race when hole deviation and sucker rod uplink and downlink out-of-step, and that rim is a metal material is poorer than nylon wheel material plasticity, and metal material is little with respect to the frictional resistance of nylon wheel material like this.More than these two kinds of advantages, viscous crude in oil well, sand, when medium such as cured fills up the joint race, wheel still rotates easily, nylon wheel itself is that to add the edge be to approach to contact with tube inner wall and circumference rotates contacts to high-abrasive material, sucker rod roller hoop formula in oil well is set upright the roller joint and is contacted the application life that long-term reciprocating motion has just prolonged sucker rod with tube inner wall like this, and the edge uniform wear advantage wear-resisting, laborsaving, wheel shaft of nylon roller is given full play of.
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (5)
1. a sucker rod is set upright rim formula roller joint, comprise that two ends are respectively equipped with the joint body of screw thread, nut, joint body is provided with roller groove and is connected with roller by bearing pin, it is characterized in that: its y direction of described joint body upper edge is angle and some roller grooves equidistantly is set.
2. sucker rod according to claim 1 is set upright rim formula roller joint, it is characterized in that: the angle along between its y direction of described roller groove plane and joint body is 45 °.
3. sucker rod according to claim 1 is set upright rim formula roller joint, it is characterized in that: described bearing pin places the joint body blind hole and is movingly with it, and the bearing pin outboard end is provided with welding gasket.
4. sucker rod according to claim 1 is set upright rim formula roller joint, it is characterized in that: described roller is made up of rim and wheel, takes turns in the prefabricated groove that is embedded in rim.
5. sucker rod according to claim 4 is set upright rim formula roller joint, it is characterized in that: described rim adopts metal material to make, and wheel adopts nylon material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720099904XU CN201080791Y (en) | 2007-10-12 | 2007-10-12 | Pumping rod centralizing wheel hoop type roller joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720099904XU CN201080791Y (en) | 2007-10-12 | 2007-10-12 | Pumping rod centralizing wheel hoop type roller joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201080791Y true CN201080791Y (en) | 2008-07-02 |
Family
ID=39614465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720099904XU Expired - Fee Related CN201080791Y (en) | 2007-10-12 | 2007-10-12 | Pumping rod centralizing wheel hoop type roller joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201080791Y (en) |
-
2007
- 2007-10-12 CN CNU200720099904XU patent/CN201080791Y/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: 20080702 Termination date: 20091112 |