CN2411336Y - Power pliers clamp mechanism - Google Patents
Power pliers clamp mechanism Download PDFInfo
- Publication number
- CN2411336Y CN2411336Y CN 99257823 CN99257823U CN2411336Y CN 2411336 Y CN2411336 Y CN 2411336Y CN 99257823 CN99257823 CN 99257823 CN 99257823 U CN99257823 U CN 99257823U CN 2411336 Y CN2411336 Y CN 2411336Y
- Authority
- CN
- China
- Prior art keywords
- palate plate
- palate
- support body
- gear wheel
- eccentric curved
- 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 clamping mechanism for power tongs, which is used in workover in oil fields, which is the improvement of clamping mechanisms of the existing power tongs. The utility model is characterized in that the inner side of a large gear is provided with three sets of eccentric curved surfaces; every set of the eccentric curved surfaces are composed of two sections which are symmetrical; a set of palate plates are arranged on a palate plate frame body corresponding to every set of the eccentric curved surfaces. The utility model has a large clamping and wrapping angle, the damage and the radial deformation of a pipe post can be reduced, and the utility model can clamp objects reliably.
Description
The utility model relates to the device technique field of loading and unloading the pipe knock-off joint outside well, particularly relates to the Power Tong clamping device that a kind of oil well repairing operation is used.
At present, the oil field when workover treatment on, unload the Power Tong that tubing string is used, the XYQ6 type that more representative QB600YB type Power Tong of producing for the applicant and Jiangsu Jianhu mining machinery plant the produce Power Tong of remaining silent, the former clamp mechanism is mainly by gear wheel and be installed in sloping rail in the gear wheel, the palate plate frame, being installed in two groups of palate plates that have dental lamina in the palate plate frame and changement and arrestment mechanism forms, owing to have only two groups of palate plates, dental lamina is in the both sides of tubing string during work, the clamping cornerite is little, the tubing string discontinuity, be easy to generate the phenomenon of skidding and strip off the skin, cause tubing string surface damage and radial deformation; The latter adopts eccentric external tooth face cam formula clamp mechanism, and is also very serious to the oil pipe surface damage during clamping.
The purpose of this utility model provides a kind of reliable clamping and can reduce the Power Tong clamp mechanism of tubing string damage and distortion.
The utility model is the improvement to existing Power Tong clamp mechanism, and it has housing and is fixedly mounted on the epipleural and the lower side panel of housing upper and lower side, and side sheet room is equipped with gear wheel up and down, and directive wheel and locking plate are installed between side plate and gear wheel.The palate plate support body is installed in the gear wheel inner chamber, the palate plate that its inboard has dental lamina is installed in the radial groove on the palate plate support body, roller and back-moving spring are housed on the palate plate.Above the palate plate support body, changement is installed, below the palate plate support body, check mechanism is installed, its design feature is to be provided with three groups of eccentric curved surfaces in the inboard of gear wheel, and every group of eccentric curved surface is made up of two sections of symmetry, is provided with one group of palate plate corresponding to every group of eccentric curved surface palate plate support body.
The utility model also is provided with an arc groove in the centre position of every group of eccentric curved surface that is the lowest part of eccentric curved surface, and the both sides and the eccentric curved surface of this groove seamlessly transit.
Because the utility model adopts three groups of palate plates to clamp, and has increased the clamping cornerite, make tubing string stressed evenly, the generation of the phenomenon of can effectively avoiding, skid when unloading pipe thread, strip off the skin,, reduce damage and radial deformation to tubing string, make clamping more reliable.The utility model can be applied to remain silent Power Tong, opening Power Tong and hydraulic screw-on machine, and is applied widely.
Fig. 1 is a middle longitudinal section of the present utility model;
Fig. 2 does not comprise housing and the transverse sectional view during side plate up and down for the utility model.
In the embodiment that accompanying drawing provides, in the binding clip main body that housing (1) and epipleural (2), lower side panel (20) are formed gear wheel (5) is installed, gear wheel (5) is controlled its direction of motion by directive wheel (4) and locking plate (3) on the side plate about being installed in.Be provided with three groups of eccentric curved surfaces (22) in gear wheel (5) inboard, every group of eccentric curved surface (22) is made up of two sections of symmetry, these three groups of eccentric curved surfaces (22) can directly process in gear wheel (5) inboard, also can form with several piece ramp (for example three or six) and gear wheel (5) combine and assemble.Circular palate plate support body (10) is installed in the inner chamber of gear wheel (5), and palate plate support body (10) can be made monolithic, also can combine by many bodies.Be provided with a radial groove corresponding to every group of eccentric curved surface (22) on palate plate support body (10), the line of symmetry of promptly every suite face is corresponding with the line of symmetry of each chute, in a circumferential direction can be uniform, and can be not uniform yet.One palate plate (12) is housed in each chute, and dental lamina (11) is equipped with in palate plate (12) inboard, by roller bearing (14) roller (13) is installed on the palate plate.In the both sides of palate plate (12) palate plate back-moving spring (21) is installed also.Roller (13) on the palate plate (12) can promote palate plate (12) and radially slide along the chute on the palate plate support body (10) along eccentric curved surface (22) bidirectional rolling on the gear wheel (5) in rolling climbing process.Middle part in every group of eccentric curved surface (22), the lowest part of promptly every suite face has an arc groove, and the both sides and the eccentric curved surface of this groove seamlessly transit, so that palate plate (12) roller when withdrawing fully is in this groove.One arc circular groove is arranged on palate plate support body (10), lock pin (8) is housed in the round slot bore, fixed knob (7) and knob piece (6) are housed on the lock pin (8), form changement jointly, be used to control the direction of motion of gear wheel (5) with the alignment pin (9) that is installed on the gear wheel (5).Clamping screw (16), stage clip (15) and brake disc (19) are installed on lower side panel (20), form check mechanism jointly with the friction plate (17) that is installed in the finger (18) on the palate plate support body (10) and be installed on the finger (18).
Operating principle of the present utility model is: when gear wheel (5) when beginning to rotate under external force, palate plate assembly in palate plate support body (10) and the chute thereof is in finger (18), friction plate (17), brake disc (19), clamping screw (16), the moment of friction effect that the brake that stage clip (15) is formed produces is not rotated earlier down, so just produce relative motion between the eccentric curved surface (22) of gear wheel (5) inner chamber and the roller (13) on the palate plate (12), roller (13) is scrolled up along curved surface, make the radially motion in the chute of palate plate support body (10) of palate plate assembly simultaneously, when dental lamina (11) when tubing string is clamped, palate plate support body (10), palate plate assembly and tubing string just rotate together in company with gear wheel (5), shackle work in the realization.When gear wheel (5) backward rotation, palate plate (12) is return in the arc groove of eccentric curved surface bottommost under back-moving spring (21) effect, and tubing string is sent out.
Claims (2)
1, a kind of Power Tong clamp mechanism, have housing (1) and be fixedly mounted on the epipleural (2) and the lower side panel (20) of housing (1) upper and lower side, side sheet room is equipped with gear wheel (5) up and down, directive wheel (4) and locking plate (3) are installed between side plate and gear wheel, in gear wheel (5) inner chamber, palate plate support body (10) is installed, the palate plate (12) that its inboard has dental lamina (11) is installed in the radial groove on palate plate support body (10), roller (13) and back-moving spring (21) are housed on the palate plate (12), in palate plate support body (10) top changement is installed, below at palate plate support body (10) is equipped with check mechanism, it is characterized in that: be provided with three groups of eccentric curved surfaces (22) in the inboard of gear wheel (5), every group of eccentric curved surface (22) is made up of two sections of symmetry, corresponding to every group of eccentric curved surface (22) one group of palate plate (12) is set on palate plate support body (10).
2, Power Tong clamp mechanism according to claim 1 is characterized in that also having an arc groove in the middle part of every group of eccentric curved surface (22), and the both sides and the eccentric curved surface of this groove seamlessly transit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99257823 CN2411336Y (en) | 1999-12-29 | 1999-12-29 | Power pliers clamp mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99257823 CN2411336Y (en) | 1999-12-29 | 1999-12-29 | Power pliers clamp mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2411336Y true CN2411336Y (en) | 2000-12-20 |
Family
ID=34040608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99257823 Expired - Fee Related CN2411336Y (en) | 1999-12-29 | 1999-12-29 | Power pliers clamp mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2411336Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100347399C (en) * | 2004-04-06 | 2007-11-07 | 傅永森 | Head clamping mechanism of opening power pincers |
| CN102606093A (en) * | 2011-01-18 | 2012-07-25 | 盐城特达钻采设备有限公司 | Sucker rod screwing machine |
| CN104499963A (en) * | 2014-11-24 | 2015-04-08 | 江苏如石机械有限公司 | Power-tongs spinning component and processing method thereof |
| CN104889919A (en) * | 2015-06-17 | 2015-09-09 | 河北科技大学 | Electric pipe wrench for threaded connection of reinforcing steel bar and connecting sleeve |
| CN108868668A (en) * | 2018-06-20 | 2018-11-23 | 郭亮 | A kind of hand rod collar stripping attachment |
| CN111390539A (en) * | 2020-01-08 | 2020-07-10 | 吴立中 | Pipe screwing machine and control method thereof |
-
1999
- 1999-12-29 CN CN 99257823 patent/CN2411336Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100347399C (en) * | 2004-04-06 | 2007-11-07 | 傅永森 | Head clamping mechanism of opening power pincers |
| CN102606093A (en) * | 2011-01-18 | 2012-07-25 | 盐城特达钻采设备有限公司 | Sucker rod screwing machine |
| CN104499963A (en) * | 2014-11-24 | 2015-04-08 | 江苏如石机械有限公司 | Power-tongs spinning component and processing method thereof |
| CN104499963B (en) * | 2014-11-24 | 2016-07-06 | 江苏如石机械有限公司 | Power Tong spinner parts and processing method |
| CN104889919A (en) * | 2015-06-17 | 2015-09-09 | 河北科技大学 | Electric pipe wrench for threaded connection of reinforcing steel bar and connecting sleeve |
| CN108868668A (en) * | 2018-06-20 | 2018-11-23 | 郭亮 | A kind of hand rod collar stripping attachment |
| CN111390539A (en) * | 2020-01-08 | 2020-07-10 | 吴立中 | Pipe screwing machine and control method thereof |
| CN111390539B (en) * | 2020-01-08 | 2021-05-25 | 吴立中 | Pipe screwing machine and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |