CN205225117U - Annular drilling rod power tong - Google Patents
Annular drilling rod power tong Download PDFInfo
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- CN205225117U CN205225117U CN201520856992.8U CN201520856992U CN205225117U CN 205225117 U CN205225117 U CN 205225117U CN 201520856992 U CN201520856992 U CN 201520856992U CN 205225117 U CN205225117 U CN 205225117U
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Abstract
The utility model provides an annular drilling rod power tong, annular drilling rod power tong include base and chucking mechanism, and the base contains the central through hole, and chucking mechanism includes: a driving assembly. Gland subassembly, drive assembly can drive the axis direction motion of this gland subassembly along this central through hole, a plurality of power tong slipss are along the circumference distribution of this central through hole, the connecting rod, one end and this gland subassembly of connecting rod are articulated, and the other end and the power tong slips of connecting rod are articulated, and when the axis direction motion of this central through hole was followed to this gland subassembly of drive assembly drive, this gland subassembly can drive the power tong slips through the connecting rod and follow the radial draw -around of this central through hole or open. Through the utility model discloses an annular drilling rod power tong can realize centre gripping drilling rod among the continuous cycle drilling process to can be for the drilling rod provide sufficient clamping -force, ensure to press from both sides and do not produce the relative slip between this annular drilling rod power tong behind the tight drilling rod, drilling rod and the fixture, and guarantee as far as possible for a short time to the indentation of drilling rod.
Description
Technical field
The utility model relates to the drilling equipment field of petroleum industry, specifically a kind of annular drill pipe tong.
Background technology
Continuous cyclic drilling achieves stable equivalent circulating density and the discharge of continual landwaste whole creeping in period, improves borehole condition and drilling safety comprehensively.This technology is particularly suitable for the safety drilling under narrow drilling fluid density window bar part.In addition, in extended reach well, horizontal well, high pressure/high temperature well, underbalance well, this technology can ensure that the borehole wall does not collapse to greatest extent, avoids bit freezing, reduces drilling failure, improves rate of penetration.
Power Tong of the prior art is the critical component of continuous circulation drilling device main frame, primarily of base, clamping body, cupboard button device and upper screw-off mechanism four part composition, has clamping, spinner, links closely and shackle function.When being exactly specifically upper shackle operation, linking closely according to drilling rod or break-out torque requirement adjustment clamping force, utilize clamping body to clamp drilling rod; Adjust spinner rotating speed as required, utilize cupboard button device to drive drilling rod revolution spinner; Adjust upper break-out torque according to drilling rod specification, in utilization, screw-off mechanism implements upper shackle operation.Therefore, continuous cyclic drilling Power Tong must meet can provide enough chucking powers, after guaranteeing Power Tong slips clamping drilling rod, relative sliding is not produced between Power Tong slips and drilling rod, and ensure little as far as possible to the impression of drilling rod, Power Tong of the prior art cannot ensure the prerequisite of Power Tong reliable and secure clamping drilling rod body under realize spinner and upper shackle function.
Utility model content
Accommodate the less deficiency of power to overcome existing Power Tong, the utility model provides a kind of annular drill pipe tong, can the object of holding drill pipe safely and reliably to reach Power Tong slips.
The utility model solves the technical scheme that its technical problem adopts: a kind of annular drill pipe tong, and annular drill pipe tong comprises base and clamping body, and base contains central through hole, and clamping body comprises: driven unit; Gland assembly, driven unit can drive this gland assembly to move along the axis direction of this central through hole; Multiple Power Tong slips, the circumference along this central through hole distributes; Connecting rod; one end of connecting rod and this gland member hinges; the other end and the Power Tong slips of connecting rod are hinged; when driven unit drives this gland assembly to move along the axis direction of this central through hole, this gland assembly can drive Power Tong slips crowd around along the radial direction of this central through hole or open by connecting rod.
Further, this gland assembly comprises cover clamp, top slewing bearing and clamping sleeve, the axis of cover clamp, the axis of top slewing bearing, the clamping axis of sleeve and the dead in line of central through hole, the axis of this central through hole is vertically arranged, clamping jacket casing is located at outside Power Tong slips, cover clamp is annular, the inner ring of top slewing bearing is fixedly connected with cover clamp, the outer ring of top slewing bearing is fixedly connected with the upper end of clamping sleeve, clamping sleeve can rotate relative to cover clamp, one end of connecting rod is hinged with clamping sleeve.
Further, revolution guide cylinder is arranged with between clamping sleeve and multiple Power Tong slips, revolution guide cylinder can rotate by the axis around this central through hole synchronous with Power Tong slips, connecting rod is through this revolution guide cylinder, and revolution guide cylinder is provided with for making Power Tong slips along the gathering sill moved radially of this central through hole.
Further, Power Tong slips is provided with ear seat, the other end of connecting rod by guiding bearing pin and ear seat hinged, this gathering sill comprises the horizontal guide slot be arranged in revolution guide cylinder, the position of horizontal guide slot is corresponding with the position of guiding bearing pin, the four-prism face that guiding bearing pin two ends are positioned at outside ear seat is all placed in horizontal guide slot, can slide in the two ends of guiding bearing pin in horizontal guide slot.
Further, this gathering sill comprises the U-shaped gathering sill of upper radial direction being arranged on revolution guide cylinder upper end, and the upper end of Power Tong slips is plugged in the U-shaped gathering sill of radial direction, and the upper end of Power Tong slips can move along the U-shaped gathering sill of upper radial direction and swing.
Further, this gland assembly comprises gland cylinder, the axis of gland cylinder and the dead in line of cover clamp, the upper end of gland cylinder is fixedly connected with the outer ledge of cover clamp, base guide cylinder is arranged with in gland cylinder, base guide cylinder is fixedly connected with base, base guide cylinder and gland cylinder matched in clearance.
Further, the inner ring of top slewing bearing is fixedly connected with the inside edge of cover clamp, driven unit is clamping oil cylinder, this clamping oil cylinder is between clamping sleeve and base guide cylinder, this clamping oil cylinder is also between cover clamp and base, the cylinder barrel of this clamping oil cylinder is fixedly connected with base, and the piston rod of this clamping oil cylinder is fixedly connected with cover clamp.
Further, annular drill pipe tong comprises and also comprises cupboard button device, and cupboard button device comprises rotary components and spinner driven unit, and this spinner driven unit can drive Power Tong slips to continue to rotate around the axis of this central through hole by this rotary components.
Further, this rotary components comprises outer ring and the guiding junction plate of external tooth type slewing bearing, inner via hole is contained at the middle part of guiding junction plate, the axis of this inner via hole, the axis of external tooth type slewing bearing and the dead in line of this central through hole, the axis of this central through hole is vertically arranged, the inner ring of external tooth type slewing bearing is fixedly connected with base, the outer ring of external tooth type slewing bearing is fixedly connected with guiding junction plate, the edge of this inner via hole is provided with the U-shaped gathering sill of lower radial direction, the lower end of Power Tong slips is plugged in the U-shaped gathering sill of lower radial direction, and the lower end of Power Tong slips can move along the U-shaped gathering sill of lower radial direction and swing.
Further, this spinner driven unit comprises spinner motor and spinner gear, and spinner motor is fixed on base and the output shaft of spinner motor is connected with spinner gear, and spinner gear engages with the outer ring of external tooth type slewing bearing.
Further, annular drill pipe tong comprises and also comprises screw-off mechanism, upper screw-off mechanism comprises hock and upper shackle oil cylinder, hock contains sector gear section, sector gear section can engage with the outer ring of external tooth type slewing bearing or be separated, and upper shackle oil cylinder can engage the outer ring rotating of rear drive external tooth type slewing bearing at hock with the outer ring of external tooth type slewing bearing.
Further, upper screw-off mechanism also comprises arc-shaped guide rail and positional cylinder, hock is provided with the outer convex block for sliding in arc-shaped guide rail, hock can arcuately slide, one end and the base of arc-shaped guide rail are hinged, the other end of arc-shaped guide rail is connected with positional cylinder, and positional cylinder can drive arc-shaped guide rail to swing and the sector gear section of hock is engaged with the outer ring of external tooth type slewing bearing.
Further, Power Tong slips is provided with multiple dovetail grooves that the axis direction along this central through hole is arranged, it is open that the other end is closed in dovetail groove one end on the axis direction of this central through hole, multiple dental lamina is inserted with in dovetail groove, bottom and the dovetail groove of dental lamina match, and the open end of dovetail groove is fixed with the limited block that can stop that dental lamina slides.
The beneficial effects of the utility model are:
1, by annular drill pipe tong of the present utility model, holding drill pipe in continuous cyclic drilling process can be realized, and enough chucking powers can be provided for drilling rod, guarantee clamping drilling rod after this annular drill pipe tong, do not produce relative sliding between drilling rod and clamping device, and ensure little as far as possible to the impression of drilling rod.
2, realize the spinner of drilling rod, link closely and the function such as shackle, enough moments of torsion can be provided to complete shackle operation.
3, annular drill pipe tong can adapt to push up the problem of driving main shaft and well head and misaligning, and annular drill pipe tong of the present utility model is compared with annular drill pipe tong of the prior art, and structure list is compact, small volume, lighter in weight, the spot replace and slip dog is more convenient for.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the utility model annular drill pipe tong embodiment;
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is the structural representation of bearing pin of leading in the utility model annular drill pipe tong embodiment;
Fig. 4 is the structural representation of the utility model annular drill pipe tong embodiment medium power pincers slips;
Fig. 5 is the structural representation of hock in the utility model annular drill pipe tong embodiment;
Fig. 6 is the structural representation of base in the utility model annular drill pipe tong embodiment.
Reference numeral in figure: 1, base; 1A, base guide cylinder; 2, driven unit; 3A, gland cylinder; 3B, cover clamp; 4, top slewing bearing; 5, sleeve is clamped; 6, connecting rod; 7, Power Tong slips; 7A, upper end; 7B, lower end; 7C, dovetail groove; 7D, limited block; 7E, screw; 7F, dental lamina; 7G, ear seat; 8, lead bearing pin; 8A, two ends; 9, guide cylinder is turned round; 9A, upper radial U-shaped gathering sill; 9B, horizontal guide slot; 10, spinner motor; 11, fixed pin shaft; 12, spinner gear; 13, external tooth type slewing bearing; 14, lead junction plate; 14A, lower radial U-shaped gathering sill; 15, positional cylinder; 16, arc-shaped guide rail; 17, hock; 16A, guide-track groove; 17A, sector gear section; 17B, outer convex block; 18, upper shackle oil cylinder.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
As shown in Figures 1 to 5, the utility model embodiment provides a kind of annular drill pipe tong, and this annular drill pipe tong comprises base 1 and clamping body.Above-mentioned base 1 is containing central through hole, and above-mentioned clamping body comprises driven unit 2, gland assembly, multiple Power Tong slips 7 and connecting rod 6.Wherein, driven unit 2 can drive this gland assembly to move along the axis direction of this central through hole.Multiple Power Tong slips 7 distributes along the circumference of this central through hole.One end of connecting rod 6 and this gland member hinges, the other end and the Power Tong slips 7 of connecting rod 6 are hinged.And when moving along the axis direction of this central through hole with this gland assembly in one end of connecting rod 6, Power Tong slips 7 can with the other end the radially sliding along this central through hole of connecting rod 6.
Annular drill pipe tong in the utility model embodiment can realize safe and reliable holding drill pipe body in continuous cyclic drilling process and implement the object of the drilling rod of spinner and upper shackle, and enough chucking powers can be provided for drilling rod, guarantee clamping drilling rod after this annular drill pipe tong, do not produce relative sliding between drilling rod and clamping device, and ensure little as far as possible to the impression of drilling rod.As shown in Figure 2 and Figure 6, adopt in the utility model embodiment be closed time central through hole.
As shown in Figure 1, this gland assembly in the utility model embodiment comprises gland cylinder 3A, cover clamp 3B, top slewing bearing 4 and clamping sleeve 5.The axis of the axis of gland cylinder 3A and the axis of cover clamp 3B, top slewing bearing 4, clamp the axis of sleeve 5 and the dead in line of central through hole, the axis of this central through hole is vertically arranged.The upper end of gland cylinder 3A is fixedly connected with the outer ledge of cover clamp 3B.Be arranged with base guide cylinder 1A in gland cylinder 3A, base guide cylinder 1A is fixedly connected with base 1, the outer cylinder of base guide cylinder 1A and the inner cylinder matched in clearance of gland cylinder 3A.Gland cylinder 3A in the utility model embodiment vertically can move up and down along base guide cylinder 1A, can also protect annular drill pipe tong inner body, avoids foreign material to enter into the inside of annular drill pipe tong.Thus ensure the application life of annular drill pipe tong.
Preferably, clamp sleeve 5 to be sheathed on outside Power Tong slips 7.Above-mentioned cover clamp 3B is annular, and the inner ring of top slewing bearing 4 is fixedly connected with the inside edge of cover clamp 3B, and the outer ring of top slewing bearing 4 is fixedly connected with the upper end of clamping sleeve 5.One end of connecting rod 6 is hinged with the ear seat of clamping sleeve 5 by fixed pin shaft 11.Driven unit 2 is two spaced clamping oil cylinders, and this clamping oil cylinder each is all between clamping sleeve 5 and base guide cylinder 1A, and this clamping oil cylinder each is also between cover clamp 3B and base 1.Wherein, the cylinder barrel of this clamping oil cylinder is fixedly connected with base 1, and the piston rod of this clamping oil cylinder is fixedly connected with cover clamp 3B.When the piston rod of this clamping oil cylinder bounces back to extreme position, the lower end of clamping sleeve 5 abuts with base 1.It should be noted that, the clamping sleeve 5 in the utility model embodiment can rotate with the inner ring of Power Tong slips 7 relative to top slewing bearing 4.And the connected mode of the clamping sleeve 5 in the utility model embodiment is not limited to said structure, such as the upper end of the inner ring of top slewing bearing 4 with clamping sleeve 5 can be fixedly connected with, the outer ring of top slewing bearing 4 is fixedly connected with cover clamp 3B.
The benefit brought using top slewing bearing 4 as drive disk assembly in the utility model embodiment is: the structure of whole annular drill pipe tong is simpler, compact, installs lubrication conveniently.Can reduce the whole height of annular drill pipe tong, transmission accuracy is high, and can bear higher axial load, radial load and overturning moment.
As shown in figures 1 and 3, revolution guide cylinder 9 is arranged with between above-mentioned clamping sleeve 5 and multiple Power Tong slips 7.Revolution guide cylinder 9 can rotate by the axis around this central through hole synchronous with Power Tong slips 7.Connecting rod 6 is through this revolution guide cylinder 9, and revolution guide cylinder 9 is provided with for making Power Tong slips 7 along the gathering sill moved radially of this central through hole.
Particularly, Power Tong slips 7 is provided with ear seat 7G, the other end of connecting rod 6 is hinged with ear seat 7G by guiding bearing pin 8.This gathering sill comprises the horizontal guide slot 9B be arranged in revolution guide cylinder 9.Along the axis of this central through hole, horizontal guide slot 9B is positioned at the middle part of revolution guide cylinder 9, and the position of horizontal guide slot 9B is corresponding with the position of guiding bearing pin 8, and the two ends 8A of guiding bearing pin 8 is all placed in the outside of ear seat 7G and is positioned at horizontal guide slot 9B.The two ends 8A of guiding bearing pin 8 is four-prism shape, and the two ends 8A of guiding bearing pin 8 can slide in horizontal guide slot 9B.Wherein, lead between the two ends of bearing pin 8 and horizontal guide slot 9B and be provided with appropriate gap, to reduce sliding-frictional resistance and to avoid stuck.
Revolution guide cylinder 9 and horizontal guide slot 9B are set; object is the degree of freedom being retrained guiding bearing pin 8 and hinged Power Tong slips 7 thereof by horizontal guide slot 9B; make guiding bearing pin 8 drive Power Tong slips 7 close up along horizontal radial direction to the center of this central through hole or open, thus realize the object clamping or unclamp drilling rod.Because the clamping body in the utility model embodiment is double-slider mechanism, the feature of this mechanism is that have stronger reinforcement effect, the power that accommodates is large, and clamping is reliable when the position clamping drilling rod close to dead point.And form sliding motion pair between the two ends of guiding bearing pin 8 in the utility model embodiment and horizontal guide slot 9B.The benefit that this structure is brought is: when Power Tong slips 7 along horizontal radial move clamping and unclamp drilling rod time, because the arm of force is short, the overturning moment produced because of sliding friction can be reduced.
Further, this gathering sill comprises the U-shaped gathering sill 9A of upper radial direction being arranged on revolution guide cylinder 9 upper end, the upper end 7A of Power Tong slips 7 is plugged in the U-shaped gathering sill 9A of radial direction, the U-shaped gathering sill 9A of above-mentioned upper radial direction is used for the effect upper end 7A of Power Tong slips 7 being played to guiding and constraint, and the upper end 7A of Power Tong slips 7 can move along the U-shaped gathering sill 9A of upper radial direction and swing.Because Power Tong slips 7 and connecting rod 6 are hinged, the reclining that Power Tong slips 7 can realize opposed vertical center certain angle swings, to adapt to the problem that drilling rod and well head center misalign.
During work, start the drop-down cover clamp 3B of piston rod and the clamping sleeve 5 of clamping oil cylinder, moved by clamping connecting rod 6 propulsion power pincers slips 7, make Power Tong slips 7 under the guide effect of upper radial U-shaped gathering sill 9A and horizontal guide slot 9B, close up to center along horizontal radial direction, thus make Power Tong slips 7 clamp drilling rod.Otherwise, when on unload need to unclamp drilling rod after drilling rod operation completes time, start clamping cylinder piston rod on pressure-raising cover plate 3B and clamping sleeve 5, by clamping connecting rod 6 pull Power Tong slips 7 to depart from drilling rod.In clamping drilling rod process, because Power Tong slips 7 can swing in the reclining of doing certain angle of opposed vertical direction, so this annular drill pipe tong can adapt to the problem that drilling rod and well head center misalign.
It should be noted that, as shown in Figure 4, Power Tong slips 7 in the utility model embodiment is provided with multiple dovetail groove 7C that the axis direction along this central through hole is arranged, it is open that dovetail groove 7C closes one end on the axis direction of this central through hole the other end, multiple dental lamina 7F is inserted with in dovetail groove 7C, bottom and the dovetail groove 7C of dental lamina 7F match, the open end of dovetail groove 7C is fixed with the limited block 7D that can stop that dental lamina 7F slides, wherein, dental lamina 7F and limited block 7D all and between dovetail groove 7C is provided with gap.When needing to change after dental lamina 7F weares and teares, only need scene to turn on screw 7E, pull down dental lamina limited block 7D, dental lamina 7F successively.Again new dental lamina 7F and the limited block 7D for fixing this dental lamina 7F is loaded onto, convenient and swift.
Annular drill pipe tong in the utility model embodiment comprises and also comprises cupboard button device, cupboard button device comprises rotary components and spinner driven unit, and this spinner driven unit can drive Power Tong slips 7 to continue to rotate around the axis of this central through hole by this rotary components.
As shown in Figure 2, this rotary components comprises external tooth type slewing bearing 13 and guiding junction plate 14.Inner via hole is contained at the middle part of guiding junction plate 14, the axis of this inner via hole, the axis of external tooth type slewing bearing 13 and the dead in line of this central through hole.The inner ring of external tooth type slewing bearing 13 is fixedly connected with base 1, and the outer ring of external tooth type slewing bearing 13 is fixedly connected with the soffit of guiding junction plate 14, and the lower end of revolution guide cylinder 9 is fixedly connected with the upper surface of guiding junction plate 14.The edge of this inner via hole is provided with the U-shaped gathering sill 14A of lower radial direction, the lower end of Power Tong slips 7 is plugged in the U-shaped gathering sill 14A of lower radial direction, above-mentioned second U-shaped gathering sill 14A can play the effect of guiding and constraint to the lower end 7B of Power Tong slips 7, the lower end 7B of Power Tong slips 7 can move along the U-shaped gathering sill 14A of lower radial direction and swing.
Driven the outer ring rotating of external tooth type slewing bearing 13 by above-mentioned spinner driven unit, thus drive and be attached thereto the guiding junction plate 14 connect and rotate.Be fixedly connected with revolution guide cylinder 9 by guiding junction plate 14, when the junction plate 14 that leads rotates, revolution guide cylinder 9 also can rotate thereupon.Due to the upper end 7A of Power Tong slips 7 and the upper radial U-type groove 9A snap-fit engagement of guiding connecting tube of negative 9, the lower end 7B of Power Tong slips 7 and the lower radial U-type groove 14A clamping of guiding junction plate 14, in rotation process, above-mentioned radial U-type groove 9A and lower radial U-type groove 14A is to Power Tong slips 7 transmitting torque, drive Power Tong slips 7 to rotate together with drilling rod, thus realize spinner operation.
Further, the outer ring of the external tooth type slewing bearing 13 in the utility model embodiment is provided with engaging tooth, this spinner driven unit comprises spinner motor 10 and spinner gear 12, spinner motor 10 is fixed on base 1, and the output shaft of this spinner motor 10 extend out to the soffit of base 1 and is connected with spinner gear 12.Spinner gear 12 engages with the outer ring of external tooth type slewing bearing 13.Spinner motor 10 in the utility model embodiment is four, and the outer ring circumference along external tooth type slewing bearing is symmetrical, is provided with a spinner gear 12 on spinner motor 10.
As shown in Figure 2 and Figure 5, annular drill pipe tong comprises and also comprises screw-off mechanism, and upper screw-off mechanism comprises hock 17 and upper shackle oil cylinder 18.Hock 17 is containing sector gear section 17A, sector gear section 17A can engage with the outer ring of external tooth type slewing bearing 13 or be separated, and upper shackle oil cylinder 18 can engage the outer ring rotating of rear drive external tooth type slewing bearing 13 with the outer ring of external tooth type slewing bearing 13 at hock 17.
Further, upper screw-off mechanism also comprises arc-shaped guide rail 16 and positional cylinder 15.Hock 17 is provided with the outer convex block 17B for sliding in the guide-track groove 16A of arc-shaped guide rail 16, and form cambered surface sliding motion between outer convex block 17B and guide-track groove 16A secondary, hock 17 can arcuately slide by guide rail 16.One end and the base 1 of arc-shaped guide rail 16 are hinged, and the other end of arc-shaped guide rail 16 is connected with positional cylinder 15.Positional cylinder 15 can drive arc-shaped guide rail 16 to swing and the sector gear section 17A of hock 17 is engaged with the outer ring of external tooth type slewing bearing 13.
During upper shackle operation, the piston rod of positional cylinder 15 steadily stretches out, the one end promoting arc-shaped guide rail 16 drives hock 17 to swing near the direction of external tooth type slewing bearing 13, and the sector gear section 17A of hock 17 is meshed with the outer ring of external tooth type slewing bearing 13.Then upper shackle oil cylinder 18 is started, promote or pull the outer ring of the external tooth type slewing bearing 13 be meshed with sector gear 17A, motion and moment of torsion is transmitted by the lower radial U-shaped gathering sill 14A on the upper radial U-shaped gathering sill 9A on revolution guide cylinder 9 and guiding junction plate 14, drive Power Tong slips 7 to rotate together with drilling rod, can realize linking closely or shackle operation.After linking closely or shackle operated, the piston rod retraction of positional cylinder 15, drives arc-shaped guide rail 16 move to the direction away from external tooth type slewing bearing 13, thus hock 17 and external tooth type slewing bearing 13 are departed from.
As can be seen from the above description, the utility model the above embodiments achieve following technique effect:
1, by annular drill pipe tong of the present utility model, realize holding drill pipe in continuous cyclic drilling process, and enough chucking powers can be provided for drilling rod, guarantee clamping drilling rod after this annular drill pipe tong, do not produce relative sliding between drilling rod and clamping device, and ensure little as far as possible to the impression of drilling rod.
2, realize the spinner of drilling rod, link closely and the function such as shackle, enough moments of torsion can be provided to complete shackle operation.
3, annular drill pipe tong can adapt to push up the problem of driving main shaft and well head and misaligning, and annular drill pipe tong of the present utility model is compared with annular drill pipe tong of the prior art, and structure list is compact, small volume, lighter in weight, the spot replace and slip dog is more convenient for.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (13)
1. an annular drill pipe tong, is characterized in that, described annular drill pipe tong comprises base (1) and clamping body, and base (1) is containing central through hole, and described clamping body comprises:
Driven unit (2);
Gland assembly, driven unit (2) can drive this gland assembly to move along the axis direction of this central through hole;
Multiple Power Tong slips (7), the circumference along this central through hole distributes;
Connecting rod (6); one end of connecting rod (6) and this gland member hinges; the other end and the Power Tong slips (7) of connecting rod (6) are hinged; when driven unit (2) drives this gland assembly to move along the axis direction of this central through hole, this gland assembly can drive Power Tong slips (7) crowd around along the radial direction of this central through hole or open by connecting rod (6).
2. annular drill pipe tong according to claim 1, it is characterized in that, this gland assembly comprises cover clamp (3B), top slewing bearing (4) and clamping sleeve (5), the axis of cover clamp (3B), the axis of top slewing bearing (4), the axis of clamping sleeve (5) and the dead in line of described central through hole, the axis of this central through hole is vertically arranged, clamping sleeve (5) is sheathed on Power Tong slips (7) outward, cover clamp (3B) is annular, the inner ring of top slewing bearing (4) is fixedly connected with cover clamp (3B), the outer ring of top slewing bearing (4) is fixedly connected with the upper end of clamping sleeve (5), clamping sleeve (5) can rotate relative to cover clamp (3B), one end of connecting rod (6) is hinged with clamping sleeve (5).
3. annular drill pipe tong according to claim 2, it is characterized in that, revolution guide cylinder (9) is arranged with between clamping sleeve (5) and multiple Power Tong slips (7), revolution guide cylinder (9) can be rotated by the axis around this central through hole synchronous with Power Tong slips (7), connecting rod (6) is through this revolution guide cylinder (9), and revolution guide cylinder (9) is provided with for making Power Tong slips (7) along the gathering sill moved radially of this central through hole.
4. annular drill pipe tong according to claim 3, it is characterized in that, Power Tong slips (7) is provided with ear seat (7G), the other end of connecting rod (6) is hinged by guiding bearing pin (8) and ear seat (7G), this gathering sill comprises the horizontal guide slot (9B) be arranged in revolution guide cylinder (9), the position of horizontal guide slot (9B) is corresponding with the position of guiding bearing pin (8), the four-prism face that guiding bearing pin (8) two ends are positioned at ear seat (7G) outside is all placed in horizontal guide slot (9B), can slide in the two ends of guiding bearing pin (8) in horizontal guide slot (9B).
5. annular drill pipe tong according to claim 3, it is characterized in that, this gathering sill comprises the U-shaped gathering sill of upper radial direction (9A) being arranged on revolution guide cylinder (9) upper end, the upper end of Power Tong slips (7) is plugged in the U-shaped gathering sill of radial direction (9A), and the upper end of Power Tong slips (7) can the mobile and swing along the U-shaped gathering sill of upper radial direction (9A).
6. annular drill pipe tong according to claim 2, it is characterized in that, this gland assembly (3) comprises gland cylinder (3A), the axis of gland cylinder (3A) and the dead in line of cover clamp (3B), the upper end of gland cylinder (3A) is fixedly connected with the outer ledge of cover clamp (3B), base guide cylinder (1A) is arranged with in gland cylinder (3A), base guide cylinder (1A) is fixedly connected with base (1), base guide cylinder (1A) and gland cylinder (3A) matched in clearance.
7. annular drill pipe tong according to claim 6, it is characterized in that, the inner ring of top slewing bearing (4) is fixedly connected with the inside edge of cover clamp (3B), driven unit (2) is clamping oil cylinder, this clamping oil cylinder is positioned between clamping sleeve (5) and base guide cylinder (1A), this clamping oil cylinder is also positioned between cover clamp (3B) and base (1), the cylinder barrel of this clamping oil cylinder is fixedly connected with base (1), and the piston rod of this clamping oil cylinder is fixedly connected with cover clamp (3B).
8. annular drill pipe tong according to claim 1, it is characterized in that, described annular drill pipe tong comprises and also comprises cupboard button device, described cupboard button device comprises rotary components and spinner driven unit, and this spinner driven unit can drive Power Tong slips (7) to continue to rotate around the axis of this central through hole by this rotary components.
9. annular drill pipe tong according to claim 8, it is characterized in that, this rotary components comprises outer ring and guiding junction plate (14) of external tooth type slewing bearing (13), inner via hole is contained at the middle part of guiding junction plate (14), the axis of this inner via hole, the axis of external tooth type slewing bearing (13) and the dead in line of this central through hole, the axis of this central through hole is vertically arranged, the inner ring of external tooth type slewing bearing (13) is fixedly connected with base (1), the outer ring of external tooth type slewing bearing (13) is fixedly connected with guiding junction plate (14), the edge of this inner via hole is provided with the U-shaped gathering sill of lower radial direction (14A), the lower end of Power Tong slips (7) is plugged in the U-shaped gathering sill of lower radial direction (14A), and the lower end of Power Tong slips (7) can the mobile and swing along the U-shaped gathering sill of lower radial direction (14A).
10. annular drill pipe tong according to claim 9, it is characterized in that, this spinner driven unit comprises spinner motor (10) and spinner gear (12), spinner motor (10) is fixed on the upper and output shaft of spinner motor (10) of base (1) and is connected with spinner gear (12), and spinner gear (12) engages with the outer ring of external tooth type slewing bearing (13).
11. annular drill pipe tongs according to claim 9, it is characterized in that, described annular drill pipe tong comprises and also comprises screw-off mechanism, described upper screw-off mechanism comprises hock (17) and upper shackle oil cylinder (18), hock (17) is containing sector gear section (17A), sector gear section (17A) can engage with the outer ring of external tooth type slewing bearing (13) or be separated, upper shackle oil cylinder (18) can engage the outer ring rotating of rear drive external tooth type slewing bearing (13) at hock (17) with the outer ring of external tooth type slewing bearing (13).
12. annular drill pipe tongs according to claim 11, it is characterized in that, described upper screw-off mechanism also comprises arc-shaped guide rail (16) and positional cylinder (15), hock (17) is provided with the outer convex block (17B) for sliding in arc-shaped guide rail (16), hock (17) can arcuately slide by guide rail (16), one end and the base (1) of arc-shaped guide rail (16) are hinged, the other end of arc-shaped guide rail (16) is connected with positional cylinder (15), positional cylinder (15) can drive arc-shaped guide rail (16) to swing and the sector gear section (17A) of hock (17) is engaged with the outer ring of external tooth type slewing bearing (13).
13. annular drill pipe tongs according to claim 1, it is characterized in that, Power Tong slips (7) is provided with multiple dovetail grooves (7C) that the axis direction along this central through hole is arranged, it is open that the other end is closed in dovetail groove (7C) one end on the axis direction of this central through hole, multiple dental lamina (7F) is inserted with in dovetail groove (7C), bottom and the dovetail groove (7C) of dental lamina (7F) match, and the open end of dovetail groove (7C) is fixed with the limited block (7D) that can stop that dental lamina (7F) slides.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520856992.8U CN205225117U (en) | 2015-10-29 | 2015-10-29 | Annular drilling rod power tong |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520856992.8U CN205225117U (en) | 2015-10-29 | 2015-10-29 | Annular drilling rod power tong |
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|---|---|
| CN205225117U true CN205225117U (en) | 2016-05-11 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105239941A (en) * | 2015-10-29 | 2016-01-13 | 中国石油天然气集团公司 | Annular drill pipe power tong |
| CN107951409A (en) * | 2017-12-29 | 2018-04-24 | 浙江帝恒实业有限公司 | A kind of deep fryer of automatic stirring |
| CN110666745A (en) * | 2019-10-30 | 2020-01-10 | 庄珍涛 | Long-strip screw nut screwing device |
| CN112343530A (en) * | 2019-08-07 | 2021-02-09 | 北京康布尔石油技术发展有限公司 | Hydraulic cylinder synchronous positioning device and screwing and unscrewing device |
-
2015
- 2015-10-29 CN CN201520856992.8U patent/CN205225117U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105239941A (en) * | 2015-10-29 | 2016-01-13 | 中国石油天然气集团公司 | Annular drill pipe power tong |
| CN107951409A (en) * | 2017-12-29 | 2018-04-24 | 浙江帝恒实业有限公司 | A kind of deep fryer of automatic stirring |
| CN112343530A (en) * | 2019-08-07 | 2021-02-09 | 北京康布尔石油技术发展有限公司 | Hydraulic cylinder synchronous positioning device and screwing and unscrewing device |
| CN110666745A (en) * | 2019-10-30 | 2020-01-10 | 庄珍涛 | Long-strip screw nut screwing device |
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