CN2620077Y - Hydraulic power tongs for disconnecting sucker rod coupling - Google Patents
Hydraulic power tongs for disconnecting sucker rod coupling Download PDFInfo
- Publication number
- CN2620077Y CN2620077Y CN 03212945 CN03212945U CN2620077Y CN 2620077 Y CN2620077 Y CN 2620077Y CN 03212945 CN03212945 CN 03212945 CN 03212945 U CN03212945 U CN 03212945U CN 2620077 Y CN2620077 Y CN 2620077Y
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- CN
- China
- Prior art keywords
- tooth
- different fan
- clencher
- sucker rod
- cam lock
- 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 discloses a sucker rod unscrewing hydraulic power tong, which is characterized in that an eccentric clamping jaw limit stop is installed in a planetary claw. One side of the jaw limit stop is provided with an eccentric clamping jaw divided as two structures. One kind of eccentric clamping jaw is a different fan shape in which the two lateral angles are in convex structure, the peak is provided with a set tooth and the rear end is fixed on the planetary claw. The other structure is that the eccentric clamping jaw is a different fan shape in which the two lateral angles are in concave structure, the peak is provided with a set tooth and the rear end is fixed on the planetary claw. The advantages are that the radial force is larger than the twisting force by approx. 2.8 times. With the convex tooth surface, the contact to the sucker rod is with no more than two lines of clamp teeth. The pressure of single-tooth is large. Three clamp tooth bodies are designed to a mutually embedded structure, which is adaptable to the needs of different diameter sucker rods.
Description
Technical field
The utility model relates to the Power Tong that oil well is used with beam hanger, oil pipe, moves back the button hydraulic power tongs especially for all size sucker rod.
Background technology
It is to bite with box spanner to pump the bar external diameter that sucker rod of the prior art moves back button, manually moves back button.But because the chucking position can not be drafted in advance, it is at random, and sucker rod is thinner, in moving back the button process, stuck point is above respectively saves sucker rod and moves back button because of rotation and stored up very big kinetic energy, the well workover workman must give sucker rod with active force constantly, prevents that box spanner from being rebounded and being injured, and leads to personal injury.
The utility model content
Problem to be solved in the utility model is when accident appears in well rod, and pumping rod fasterner desire to lay down the sucker rod of chucking, and a kind of sucker rod that provides moves back the button hydraulic power tongs in oil pick-up tube.
Sucker rod moves back the button hydraulic power tongs, opening internal gear 1 is meshed with planetary gear 2 and is connected, planetary gear 2 is connected with planet pawl 5 with hub splines 4 by mandrel 3, it is characterized in that: cam lock clencher tooth block 6 is installed on the planet pawl, side at pincers tooth block 6 is equipped with cam lock clencher tooth body 7, cam lock clencher tooth body is divided into two kinds of structures: a kind of cam lock clencher tooth body 7 is for different fan-shaped, two angles, the different fan-shaped outside are convex 11 structures, different fan tip is provided with pincers tooth 10, and different fan-shaped tail end is fixed on the planet pawl 5; Another kind of structure is that cam lock clencher tooth body 8 is different fan-shaped, and two angles, the different fan-shaped outside are spill 12 structures, and different fan tip is provided with pincers tooth 10, and different fan-shaped tail end is fixed on the planet pawl; When cam lock clencher tooth body 7,8 couplings clamped beam hanger 9, pincers tooth 10 was two row; Each hydraulic power tongs needs three pincers tooth body 7,8 couplings to be mutual damascene structures.
The utility model has the advantages that; Radial load is big than tangential force, about more than 2.8 times; The spirogyrate flank of tooth, contact sucker rod are no more than two row pincers teeth, and monodentate pressure is big; Three pincers tooth bodies are designed to mutual damascene structures, adapt to the needs of different-diameter sucker rod; Card Ф 19-Ф 40 all kinds of sucker rods do not need to change the pincers tooth.The eccentric clamp mechanism of planet pawl formula, this mechanism is specially designed three pincers teeth, three pincers teeth clamp sucker rod from three directions, the flank of tooth of its spirogyrate makes the pincers tooth that contacts with sucker rod be no more than two row, increased the radial pressure of single pincers tooth to sucker rod, be clamping force, this is big characteristics of this mechanism, is that other Power Tong does not possess.When the utility model moves back button at Power Tong, no matter much moments of torsion can not cause the phenomenon that sucker rod is stripped off the skin when moving back button to produce.
Description of drawings
Fig. 1 is the structural representation that sucker rod moves back the button hydraulic power tongs.
Fig. 2 is a hydraulic power tongs cam lock clencher tooth body convex structure front view.
Fig. 3 is a hydraulic power tongs cam lock clencher tooth body convex structure lateral view.
Fig. 4 is a hydraulic power tongs cam lock clencher tooth body convex structure A-A sectional view.
Fig. 5 is a hydraulic power tongs cam lock clencher tooth body concave structure front view.
Fig. 6 is a hydraulic power tongs cam lock clencher tooth body concave structure lateral view.
Fig. 7 is a hydraulic power tongs cam lock clencher tooth body convex structure B-B sectional view.
The specific embodiment
Sucker rod moves back the button hydraulic power tongs, is to be meshed with planetary gear 2 by opening internal gear 1 to be connected, and planetary gear 2 is connected with planet pawl 5 with hub splines 4 by mandrel 3; Cam lock clencher tooth block 6 is installed on the planet pawl, in a side that clamps tooth block 6 cam lock clencher tooth body 7 is housed, cam lock clencher tooth body is divided into two kinds of structures; A kind of cam lock clencher tooth body 7 is different fan-shaped (seeing Fig. 1,2,3,4), and two angles, the different fan-shaped outside are convex 11 structures, and different fan tip is provided with pincers tooth 10, and different fan-shaped tail end is fixed on the planet pawl 5; Another kind of structure is that cam lock clencher tooth body 8 is different fan-shaped (seeing Fig. 1,5,6,7), and two angles, the different fan-shaped outside are spill 12 structures, and different fan tip is provided with pincers tooth 10, and different fan-shaped tail end is fixed on the planet pawl 5; When cam lock clencher tooth body 7,8 couplings clamped beam hanger 9, pincers tooth 10 was two row; Each hydraulic power tongs needs three pincers tooth body 7,8 couplings to be mutual damascene structures.Its transmission process is as follows: drive planet pinion 1 is rotated counterclockwise (to move back button) when the gear wheel of hydraulic power tongs is rotated counterclockwise, planet pinion passes through part 3 mandrels, part 4 hub spliness, the rotation of 5 inverse times of planet pawl, the planet pawl drives pincers tooth body 7, rotation, and contacts oil pumping rod member 9 gradually; At this simultaneously, in addition two planet pawls drive pincers tooth body 8 and another and teeth body 7 same structures respectively pincers tooth body with rotation, and clamping sucker rod.Healing at folder more drives the sucker rod rotation in tight, and realizes moving back to sucker rod the purpose of button.
Claims (2)
1, sucker rod moves back the button hydraulic power tongs, the opening internal gear is meshed with planetary gear and is connected, planetary gear is connected with the planet pawl with hub splines by mandrel, it is characterized in that: cam lock clencher tooth block is installed on the planet pawl, side at pincers tooth block is equipped with cam lock clencher tooth body, and cam lock clencher tooth body is divided into two kinds of structures; A kind of cam lock clencher tooth body is different fan-shaped, and two angles, the different fan-shaped outside are convex structure, and different fan tip is provided with the pincers tooth, and different fan-shaped tail end is fixed on the planet pawl; Another kind of structure is that cam lock clencher tooth body is different fan-shaped, two angles, the different fan-shaped outside are concave structure, and different fan tip is provided with the pincers tooth, and different fan-shaped tail end is fixed on the planet pawl, each hydraulic power tongs needs three pincers tooth bodies, and three pincers tooth bodies are mutual damascene structures.
2, sucker rod according to claim 1 moves back the button hydraulic power tongs, it is characterized in that: when cam lock clencher tooth body (7), (8) coupling clamping beam hangers (9), pincers teeth (10) are two row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03212945 CN2620077Y (en) | 2003-05-01 | 2003-05-01 | Hydraulic power tongs for disconnecting sucker rod coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03212945 CN2620077Y (en) | 2003-05-01 | 2003-05-01 | Hydraulic power tongs for disconnecting sucker rod coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2620077Y true CN2620077Y (en) | 2004-06-09 |
Family
ID=34242082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03212945 Expired - Lifetime CN2620077Y (en) | 2003-05-01 | 2003-05-01 | Hydraulic power tongs for disconnecting sucker rod coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2620077Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108942315A (en) * | 2018-09-10 | 2018-12-07 | 中石化四机石油机械有限公司 | Large torque rotating clamping device |
-
2003
- 2003-05-01 CN CN 03212945 patent/CN2620077Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108942315A (en) * | 2018-09-10 | 2018-12-07 | 中石化四机石油机械有限公司 | Large torque rotating clamping device |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130502 Granted publication date: 20040609 |