CN102211248A - Oil drill rod connector, drill rod, inertia friction welding process and jig - Google Patents
Oil drill rod connector, drill rod, inertia friction welding process and jig Download PDFInfo
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- CN102211248A CN102211248A CN2011101159083A CN201110115908A CN102211248A CN 102211248 A CN102211248 A CN 102211248A CN 2011101159083 A CN2011101159083 A CN 2011101159083A CN 201110115908 A CN201110115908 A CN 201110115908A CN 102211248 A CN102211248 A CN 102211248A
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Abstract
The invention relates to an oil drill rod connector, a drill rod, an inertia friction welding process and a jig. The oil drill rod connector and a drill rod welding end are composed of inner and outer sections, wherein the diameter of the inner section is equal to the diameter of a pad of a drill rod end-product; the diameter of the outer section is more than the diameter of the inner section; and the outer section and the inner section are transited through a chamfer. By adopting such a structure, the welding quality is ensured, and the pad with a required size is machined so that the defect of uneven pad surface is eliminated when an external circle burr is turned after the welding is finished, thereby being smooth in processing surface, increasing the surface quality, reducing the labor intensity and greatly increasing the production efficiency. The invention further discloses the inertia friction welding process and the jig between the oil drill rod connector and the drill rod. Compared with a continuous driving friction welding method, the inertia friction welding process has the advantages that the welding time is reduced to one half or so and the production efficiency is greatly increased.
Description
Technical field
The present invention relates to oil drill rocker manufacturing technology field, particularly a kind of joint of petroleum drill rod, drilling rod and inertia friction weld technology and frock.
Background technology
Butt welding between early stage joint of petroleum drill rod and the body is arc welding, flash butt welding, and there are a lot of problems in this Type of Welding, as: poor welding quality, the welding process instability, efficient is low, labour intensity is big.Develop into progressively now that Continuous Drive Friction Welding connects and inertia friction weld, the production efficiency of drilling rod butt welding is more and more higher, and the quality of weld seam is also become better and better.At present, the inertia friction weld method is the most reliable drilling rod duct butt-welding method, but also have some problems in friction-welding technique, shows that mainly 1. welding finishes back weld seam overlap and handle, interior overlap employing turning, and efficient is low; 2. behind the outer overlap of processing rough shoulder and pit appear easily; Will increase the frequency of changing frock with different locating pieces when 3. welding the internal and external threads joint, efficient is low, labour intensity is big etc.
Summary of the invention
One of technical problem to be solved by this invention is to connect at existing petroleum drill pipe friction and the problem of rough shoulder and pit occurs easily behind the outer overlap of existing processing in the technology and a kind of joint of petroleum drill rod is provided, after this joint of petroleum drill rod and drill pipe friction connect the outer overlap of processing, its weld can not exist rough shoulder and pit.
Two of technical problem to be solved by this invention is to connect at existing petroleum drill pipe friction and the problem of rough shoulder and pit occurs easily behind the outer overlap of existing processing in the technology and a kind of oil drill rocker is provided, behind this oil drill rocker and the outer overlap of tool joint friction welding processing, its weld can not exist rough shoulder and pit.
Three of technical problem to be solved by this invention is to connect existing problem in the technology and a kind of oil drill rocker inertia friction weld technology is provided at existing petroleum drill pipe friction.
Four of technical problem to be solved by this invention is to connect existing problem in the technology and provide a kind of in order to tool joint is carried out the frock of overlap in axial location and the die-cut welding at existing petroleum drill pipe friction.
Tool joint as first aspect present invention, the joint body that comprises hollow, one end of described joint body is the welding ends that connects with drill pipe friction, it is characterized in that, described welding ends is to form by inside and outside two sections, and outer section is welded to connect with drilling rod, and the diameter of described inner segment equals the drilling rod finished product and welds warp straight, outer section diameter is greater than the inner segment diameter, and between outer section and the inner segment by the chamfering transition.
Described chamfering is 15 °.
The length of described outer section is 15mm.
Oil drill rocker as first aspect present invention, the drilling rod body that comprises hollow, the two ends of described drilling rod body are the welding ends that connects with drill pipe friction, it is characterized in that, described welding ends is to form by inside and outside two sections, and outer section is welded to connect with tool joint, and the diameter of described inner segment equals the drilling rod finished product and welds warp straight, outer section diameter is greater than the inner segment diameter, and between outer section and the inner segment by the chamfering transition.
Described chamfering is 15 °.
The length of described outer section is 15mm.
Friction-welding technique as second aspect present invention comprises the steps:
(1) preliminary treatment before the joint weldering
The end face that will join the tool joint welding ends of weldering with lathe carries out turning, to remove rusty stain and the pollutant on the end face;
(2) preliminary treatment before the drilling rod weldering
With lathe the end face of drilling rod welding ends is carried out turning, to remove rusty stain and the pollutant on the end face;
(3) clamping tool joint and drilling rod on inertia friction welder
A, by the joint fixture block on the joint clamping disk(-sc) that under the effect of tension cylinder tool joint is being clamped in tightly with main shaft rotation synchronously, and employing is installed on the inertia friction welder and the fairlead and the locating piece that rotate with main shaft carry out axial location, and the drift that will be slidingly arranged in the jumper bar end in the fairlead simultaneously is inserted in the endoporus of tool joint;
B, employing drilling rod fixture block are clamped in drilling rod on the welding tractor tightly and arrive pre-upset position under the drives of welding tractor;
(4) tool joint and drill pipe friction connect
Hydraulic motor starts main shaft, clamps the moving tool joint rotation of dribbling by joint, when the rotating speed of main shaft reaches predetermined value, hydraulic motor and main shaft is thrown off; Afterwards, welding tractor drives drilling rod and moves to tool joint direction straight line under the driving of hydraulic pressure, and at this moment drilling rod does not rotate; The upsetting force that produces by the welding machine hydraulic system is pressed in the end face of drilling rod welding ends on the end face of tool joint welding ends tightly, make it to produce a large amount of frictional heats, described frictional heat heat makes the metal on the solder side between tool joint and the drilling rod heat up rapidly and plastification, under the effect of upsetting force, be extruded solder side then, make tool joint and drilling rod and form inside and outside overlap; After the energy of storing in the main shaft ran out of, main shaft stopped operating;
(5) remove interior overlap
After main shaft stopped operating 5s, the jumper bar band drift under the effect of shear cylinder, and by the fairlead guiding, fast moving is washed out the interior overlap that welding forms forward, and jumper bar drives drift and get back to original position under the effect of shear cylinder then;
(6) dismounting workpiece
After interior overlap is washed out, lay down the upsetting force that the welding machine hydraulic system produces, joint fixture block on the releasable joint clamping disk(-sc) and drilling rod fixture block take off the good workpiece of welding, finish once welding; Finish secondary welding by above-mentioned steps (3), (4), (5), (6) again, the well later wheeled litter of getting on the bus of secondary welding goes outer overlap to get the oil drill rocker finished product.
In described step (1), impress in the end of tool joint away from welding ends, indicate the title of welding date and manufacturer.
A kind of as fourth aspect present invention in order to tool joint is carried out the frock of overlap in axial location and the die-cut welding, comprise the fairlead that is installed on the inertia friction welder and rotates with main shaft and slide and pass the jumper bar of the pilot hole in the described fairlead that described fairlead is first locating surface to the tool joint axial location towards the side of tool joint; One end of described drilling rod is provided with the drift that inserts in the described tool joint endoporus, and the other end of drilling rod is connected with shear cylinder on the inertia friction welder and is subjected to the driving of shear cylinder to carry out rectilinear motion.
Described fairlead is connected with the main shaft of inertia friction welder by the lengthening cover away from the side of tool joint, all adopts round key to be located by connecting between described fairlead and described lengthening cover and lengthening cover and the described main shaft.
In the pilot hole of described fairlead, be provided with dust ring, enter in the described tension cylinder to prevent dust or foreign material.
Described fairlead is equipped with a positioning block towards the side of tool joint, and locating piece and fairlead are installed on the main shaft of inertia friction welder by securing member together; The center of described locating piece has a perforation, so that described jumper bar passes described locating piece and is inserted in the endoporus of tool joint, that end in the close tool joint of described perforation is provided with chamfering, and this chamfering constitutes second locating surface to the tool joint axial location.
The present invention compares with other welding methods, has the following advantages:
(1) speed of welding is fast, and welding heat affected zone is narrow, and crystal grain is not easy to grow up; Common arc-welding mode then is easy to generate roomy heat affected area and grain growth phenomenon.
(2) can not produce the welding greyness basically in the welding process; The flash butt welding method is easier to produce the welding greyness and has a strong impact on weldquality.
(3) in the welding process owing to need not brake basically, so the present invention connects more conserve energy of method than Continuous Drive Friction Welding.
(4) connect method with Continuous Drive Friction Welding and compare, approximately be the former half weld interval of the present invention, and production efficiency can improve greatly.
(5) parameter monitoring system of welding machine makes that the detection of welding shortening amount is more accurate, and judges whether it reaches established standards.If do not reach, system then produces alarm signal.Can improve the reliability of weld seam seam greatly by this method.
(6),, and these data are kept on the hard disc of computer inquiry for future reference at any time by the speed of mainshaft-time graph, upsetting force-time graph and the welding shortening amount-time graph of welding process under the computer system real time record to comprehensive supervision of welding process.
(7) before welding, can break into the product marking at the tool joint root, with process finished product after again stamp compare and have many good qualities, at first joint much is easier to operation at stamp time ratio than the small volume and less weight of drilling rod finished product, joint is than the easier circulation of drilling rod finished product in addition, avoid the confusion of production scene, reduce labour intensity.
(7) weldering footpath form becomes after the shoulder, not only still can guarantee the quality of welding, so and weldering footpath has been worked into size after welding is finished during the size overlap, eliminate surface, weldering footpath and rough defective occurred, make finished surface more smooth, surface quality is improved, and has also reduced labour intensity simultaneously, enhances productivity greatly.
(8) by processing the drilling rod that specification is 23/8 "～51/2 " to the design of frock, the seriation of frock makes when producing, and changes the simplification that frock becomes, and the operative employee is easy to grasp, and labour intensity is little, high efficiency.
(9) this implementation of processes makes welding quality and stability improve greatly, and the output of the annual drilling rod of single device can reach more than 10,000 tons.
Description of drawings
Fig. 1 is an oil drill rocker finished product schematic diagram of the present invention.
Fig. 2 is the structural representation of fillet of tool joint pins of the present invention.
Fig. 3 is the structural representation of tool joint box of the present invention.
Fig. 4 is the structural representation of drilling rod of the present invention.
Fig. 5 is the schematic diagram of fillet of tool joint pins welding ends planar end surface of the present invention.
Fig. 6 is the schematic diagram of tool joint box welding ends planar end surface of the present invention.
Fig. 7 is the structural representation of existing tool joint box.
Fig. 8 is the structural representation of the tool joint box after welding ends of the present invention designs again.
Fig. 9 is the schematic diagram of drilling rod welding ends planar end surface of the present invention.
Figure 10 is a tool joint box clamping schematic diagram of the present invention.
Figure 11 is a fillet of tool joint pins clamping schematic diagram of the present invention.
Figure 12 is the structural representation of locating piece of the present invention.
The specific embodiment
Describe the present invention in detail below in conjunction with the drawings and specific embodiments.The following specific embodiment is only with 5, and " oil drill rocker is that example is illustrated, but the present invention can also be used to making the standard drilling rod of processing 2 3/8 "～5 1/2 " specification.
Referring to Fig. 1, whole oil drill rocker is welded by drilling rod 100 and the fillet of tool joint pins 200, the tool joint box 300 that are welded on drilling rod 100 two ends, 400 is weld seam between fillet of tool joint pins 200 and the drilling rod 100 among the figure, and 500 are the weld seam between tool joint box 300 and the drilling rod 100.The length of whole oil drill rocker is 8000-10000mm.
Referring to Fig. 2, fillet of tool joint pins 200 comprises the joint body 210 of a hollow, and an end of joint body 210 is provided with outer cone thread 220, and the other end is the welding ends 230 that welds with drilling rod 100.
Referring to Fig. 3, tool joint box 300 comprises the joint body 310 of a hollow, and an end of joint body 310 is provided with inside tapered thread 320, and the other end is the welding ends 330 that welds with drilling rod 100.
Referring to Fig. 4, drilling rod 100 is a pipe fitting, and its two ends are respectively the welding ends 110,120 with fillet of tool joint pins 200 and tool joint box 300 welding.
Structure and existing fillet of tool joint pins, tool joint box and the jackrod structure of fillet of tool joint pins 200 of the present invention, tool joint box 300 and drilling rod 100 are different, its improvements are welding ends 230,330,110,120, and the welding ends 330 with regard to tool joint box 300 illustrates the improvement of the present invention to the welding ends 230,330,110,120 of fillet of tool joint pins 200, tool joint box 300 and drilling rod 100 below.
Referring to Fig. 5, existing tool joint box 300 ', its welding ends 330 ' is that a diameter is the column structure of 132mm, length is 40mm.Referring to Fig. 6, the welding ends 330 of tool joint box 300 of the present invention changes into by inside and outside two section 331,332 to be formed, be cylindrical for inside and outside two section 331,332, but outer section 32 diameters are 132mm, and length is 15mm, and inner segment 331 diameters equal the drilling rod finished product and weld warp straight, be 130mm, welding section 330 just forms a step axle shape like this, and passes through 15 ° of chamfering 333 transition between outer section 332 and the inner segment 331, to prevent that producing stress concentrates.Outer section 332 of welding ends 330 is welded to connect with drilling rod.
The improvement of the welding ends 110,120 at the welding section 230 of fillet of tool joint pins 200 and drilling rod 100 two ends no longer is described in detail at this with the improvement of the welding ends 330 of tool joint box 300.
By improvement to welding ends, not only still can guarantee the quality of welding, and the weldering footpath has been worked into size, so after welding is finished during the size overlap, eliminated surface, weldering footpath and rough defective occurred, made finished surface more smooth, surface quality is improved, simultaneously also reduced labour intensity, enhanced productivity greatly.
Friction-welding technique of the present invention is to realize on the 320BX inertia friction welder of U.S. MTI company, also is not limited to this inertia friction welder certainly.The concrete steps of this friction-welding technique are as follows:
(1) preliminary treatment before the joint weldering
For guarantee the pure of weld seam, just tool joint must can be joined weldering with pretreated drilling rod through after the preliminary treatment.Pretreated content comprises:
Referring to Fig. 7 and Fig. 8, the end face 334 that will join the welding ends 330 of the end face 234 of welding ends 230 of fillet of tool joint pins 200 of weldering and tool joint box 300 with lathe carries out turning, to remove rusty stain and the pollutant on the end face; Must impress simultaneously, indicate the title of time, month, grade of steel and the manufacturer of welding at the root of the outer cone thread 220 of fillet of tool joint pins 300.
(2) preliminary treatment before the drilling rod weldering
Referring to Fig. 9, with lathe the end face 112,122 of the welding ends 110,120 of drilling rod 100 is carried out turning, to remove the iron scale on the end face, guarantee the butt welding surface clean, outer section 111,121 external diameters are consistent with outer section weldering footpath of the welding ends of fillet of tool joint pins, tool joint box;
(3) clamping tool joint box and drilling rod on inertia friction welder
A, referring to Figure 10, at first assemble in order to tool joint box 300 is carried out the frock of overlap in axial location and the die-cut welding at inertia friction welder, concrete mounting means is: the step surface of the fairlead in the frock 710 and the locating surface 621 of main shaft 620 are compressed, again locating piece 720 and fairlead 710 1 being reinstated bolt 730 is installed on the main shaft 620, simultaneously between the locating surface 622 of main shaft 620 and fairlead 710, install a lengthening additional and overlap 730, lengthening cover 730 mainly plays filling and compresses, the locating surface 622 of its end and main shaft 620 compresses with round key locatees, the other end and fairlead 710 compress with the round key location, do not need bolt to connect.
In fairlead 710, be provided with pilot hole 712, mainly jumper bar 740 play the guiding role, in pilot hole 712, stud with dust ring 712a, prevent that dust or foreign material from entering the tension cylinder.
Referring to Figure 12, the center of locating piece 720 has a perforation 721, so that jumper bar 740 passes locating piece 720, that end in perforation 721 close tool joint boxs 300 is provided with 45 ° of chamfering 721a, this chamfering 721a constitutes the locating surface to tool joint box 300 axial location, this locating surface can prevent tool joint box 300 axial floats after tool joint box 300 is located.
At last jumper bar 740 is passed lengthening cover 730, the pilot hole 712 of fairlead 710, the perforation 721 of locating piece 720, one end of jumper bar 740 threaded 741 is connected with the shear cylinder (not shown) on the inertia friction welder, and the other end is connected with drift 742 by bolt 743.The diameter of drift 742 can be easy to cut interior overlap like this than the little 0.5mm of diameter of bore of tool joint box 300 and drilling rod 100, no longer needs turning, only need carry out simple reconditioning.
After assembling above-mentioned frock, tool joint box 300 is placed between the joint fixture block 610 of six valve structures on the joint clamping disk(-sc) 630 that rotates synchronously with main shaft 620, the end that makes tool joint box 300 have inside tapered thread 320 those ends simultaneously withstands on the locating surface that the chamfering 721a of locating piece 720 constitutes, and the drift 742 on the jumper bar 740 is inserted in the endoporus of tool joint box 300.During clamping tool joint box 300, guarantee that the end face 334 of the welding ends 330 of tool joint box 300 stretches out the length of joint clamping disk(-sc) 630 in 90～105mm scope.Start the tension cylinder, under the effect of tension cylinder, the gap between the joint fixture block 610 of six valve structures is diminished gradually by 3mm, and joint fixture block 610 internal diameters reduce gradually, thereby tightly clamp tool joint box 300.
B, employing drilling rod fixture block are clamped in drilling rod on the welding tractor tightly and arrive pre-upset position (not shown, the same with prior art) under the drives of welding tractor;
(4) tool joint box and drill pipe friction connect
Hydraulic motor starts main shaft 620, drives tool joint box 300 rotations by joint clamping disk(-sc) 610, when the rotating speed of main shaft reaches predetermined value, hydraulic motor and main shaft is thrown off; Afterwards, welding tractor drives drilling rod and moves to tool joint box 300 direction straight lines under the driving of hydraulic pressure, and at this moment drilling rod does not rotate; The upsetting force that produces by the welding machine hydraulic system is pressed in the end face of drilling rod welding ends on the end face of welding ends 330 of tool joint box 300 tightly, make it to produce a large amount of frictional heats, the frictional heat heat makes the metal on the solder side between tool joint box 300 and the drilling rod heat up rapidly and plastification, under the effect of upsetting force, be extruded solder side then, make tool joint box 300 and drilling rod and form inside and outside overlap; After the energy of storing in the main shaft ran out of, main shaft stopped operating;
(5) remove interior overlap
After main shaft 620 stopped operating 5s, under the effect of shear cylinder, by fairlead 710 guidings, fast moving was washed out the interior overlap that welding forms to jumper bar 740 forward with drift 742, and jumper bar 740 drives drift 742 and get back to original position under the effect of shear cylinder then;
(6) dismounting workpiece
After interior overlap was washed out, main shaft 620 stopped operating behind the 15s, laid down the upsetting force that the welding machine hydraulic system produces, and joint fixture block 610 on the releasable joint clamping disk(-sc) 630 and drilling rod fixture block take off the drilling rod 100 that is welded with tool joint box 300, finished once welding.
(7) clamping fillet of tool joint pins and drilling rod on inertia friction welder
A, referring to Figure 11, fillet of tool joint pins 200 is placed between the joint fixture block 610 of six valve structures on the joint clamping disk(-sc) 630 that rotates synchronously with main shaft 620, the end that makes fillet of tool joint pins 200 have outer cone thread 220 those ends simultaneously withstands on fairlead 710 and the side 713 that locating piece 720 contacts, and the drift 742 on the jumper bar 740 is inserted in the endoporus of fillet of tool joint pins 200.During clamping fillet of tool joint pins 200, guarantee that the end face 234 of the welding ends 230 of fillet of tool joint pins 200 stretches out the length of joint clamping disk(-sc) 630 in 90～105mm scope.Start the tension cylinder, under the effect of tension cylinder, the gap between the joint fixture block 610 of six valve structures is diminished gradually by 3mm, and joint fixture block 610 internal diameters reduce gradually, thereby tightly clamp fillet of tool joint pins 200.
B, the drilling rod 100 that will be welded with tool joint box 300 turn around, and adopt the drilling rod fixture block to be clamped in drilling rod on the welding tractor tightly and arrive pre-upset position (not shown, the same with prior art) under the drive of welding tractor;
(4) fillet of tool joint pins and drill pipe friction connect
Hydraulic motor starts main shaft 620, drives fillet of tool joint pins 200 rotations by joint clamping disk(-sc) 610, when the rotating speed of main shaft reaches predetermined value, hydraulic motor and main shaft is thrown off; Afterwards, welding tractor drives drilling rod and moves to fillet of tool joint pins 200 direction straight lines under the driving of hydraulic pressure, and at this moment drilling rod does not rotate; The upsetting force that produces by the welding machine hydraulic system is pressed in the end face of drilling rod welding ends on the end face of welding ends 230 of fillet of tool joint pins 200 tightly, make it to produce a large amount of frictional heats, the frictional heat heat makes the metal on the solder side between fillet of tool joint pins 200 and the drilling rod heat up rapidly and plastification, under the effect of upsetting force, be extruded solder side then, make fillet of tool joint pins 200 and drilling rod and form inside and outside overlap; After the energy of storing in the main shaft ran out of, main shaft stopped operating;
(5) remove interior overlap
After main shaft 620 stopped operating 5s, under the effect of shear cylinder, by fairlead 710 guidings, fast moving was washed out the interior overlap that welding forms to jumper bar 740 forward with drift 742, and jumper bar 740 drives drift 742 and get back to original position under the effect of shear cylinder then;
(6) dismounting workpiece
After interior overlap is washed out, main shaft 620 stops operating behind the 15s, lays down the upsetting force that the welding machine hydraulic system produces, joint fixture block 610 on the releasable joint clamping disk(-sc) 630 and drilling rod fixture block, take off the drilling rod 100 that is welded with tool joint box 300 and tool joint box 300, finish secondary welding.After the secondary welding, the wheeled litter of getting on the bus removes the oil drill rocker finished product of outer overlap.
The welding parameter that is adopted in the above-mentioned welding process is as shown in the table:
Claims (12)
1. tool joint, the joint body that comprises hollow, one end of described joint body is the welding ends that connects with drill pipe friction, it is characterized in that, described welding ends is to form by inside and outside two sections, and outer section is welded to connect with drilling rod, and the diameter of described inner segment equals the drilling rod finished product and welds warp straight, outer section diameter is greater than the inner segment diameter, and between outer section and the inner segment by the chamfering transition.
2. tool joint as claimed in claim 1 is characterized in that, described chamfering is 15 °.
3. tool joint as claimed in claim 1 is characterized in that, the length of described outer section is 15mm.
4. oil drill rocker, the drilling rod body that comprises hollow, the two ends of described drilling rod body are the welding ends that connects with drill pipe friction, it is characterized in that, described welding ends is to form by inside and outside two sections, and outer section is welded to connect with tool joint, and the diameter of described inner segment equals the drilling rod finished product and welds warp straight, outer section diameter is greater than the inner segment diameter, and between outer section and the inner segment by the chamfering transition.
5. oil drill rocker as claimed in claim 4 is characterized in that, described chamfering is 15 °.
6. oil drill rocker as claimed in claim 4 is characterized in that, the length of described outer section is 15mm.
7. oil drill rocker inertia friction weld technology is characterized in that, comprises the steps:
(1) preliminary treatment before the joint weldering
The end face that will join the tool joint welding ends of weldering with lathe carries out turning, to remove rusty stain and the pollutant on the end face;
(2) preliminary treatment before the drilling rod weldering
With lathe the end face of drilling rod welding ends is carried out turning, to remove rusty stain and the pollutant on the end face;
(3) clamping tool joint and drilling rod on inertia friction welder
A, by the joint fixture block on the joint clamping disk(-sc) that under the effect of tension cylinder tool joint is being clamped in tightly with main shaft rotation synchronously, and employing is installed on the inertia friction welder and the fairlead and the locating piece that rotate with main shaft carry out axial location, and the drift that will be slidingly arranged in the jumper bar end in the fairlead simultaneously is inserted in the endoporus of tool joint;
B, employing drilling rod fixture block are clamped in drilling rod on the welding tractor tightly and arrive pre-upset position under the drives of welding tractor;
(4) tool joint and drill pipe friction connect
Hydraulic motor starts main shaft, clamps the moving tool joint rotation of dribbling by joint, when the rotating speed of main shaft reaches predetermined value, hydraulic motor and main shaft is thrown off; Afterwards, welding tractor drives drilling rod and moves to tool joint direction straight line under the driving of hydraulic pressure, and at this moment drilling rod does not rotate; The upsetting force that produces by the welding machine hydraulic system is pressed in the end face of drilling rod welding ends on the end face of tool joint welding ends tightly, make it to produce a large amount of frictional heats, described frictional heat heat makes the metal on the solder side between tool joint and the drilling rod heat up rapidly and plastification, under the effect of upsetting force, be extruded solder side then, make tool joint and drilling rod and form inside and outside overlap; After the energy of storing in the main shaft ran out of, main shaft stopped operating;
(5) remove interior overlap
After main shaft stopped operating 5s, the jumper bar band drift under the effect of shear cylinder, and by the fairlead guiding, fast moving is washed out the interior overlap that welding forms forward, and jumper bar drives drift and get back to original position under the effect of shear cylinder then;
(6) dismounting workpiece
After interior overlap is washed out, lay down the upsetting force that the welding machine hydraulic system produces, joint fixture block on the releasable joint clamping disk(-sc) and drilling rod fixture block take off the good workpiece of welding, finish once welding; Finish secondary welding by above-mentioned steps (3), (4), (5), (6) again, the well later wheeled litter of getting on the bus of secondary welding goes outer overlap to get the oil drill rocker finished product.
8. oil drill rocker inertia friction weld technology as claimed in claim 7 is characterized in that, in described step (1), impresses in the end of tool joint away from welding ends, indicates the title of welding date and manufacturer.
9. one kind in order to carry out the frock of overlap in axial location and the die-cut welding to tool joint, it is characterized in that, comprise the fairlead that is installed on the inertia friction welder and rotates with main shaft and slide and pass the jumper bar of the pilot hole in the described fairlead that described fairlead is first locating surface to the tool joint axial location towards the side of tool joint; One end of described drilling rod is provided with the drift that inserts in the described tool joint endoporus, and the other end of drilling rod is connected with shear cylinder on the inertia friction welder and is subjected to the driving of shear cylinder to carry out rectilinear motion.
10. frock as claimed in claim 9, it is characterized in that, described fairlead is connected with the main shaft of inertia friction welder by the lengthening cover away from the side of tool joint, all adopts round key to be located by connecting between described fairlead and described lengthening cover and lengthening cover and the described main shaft.
11. frock as claimed in claim 9 is characterized in that, is provided with dust ring in the pilot hole of described fairlead.
12. frock as claimed in claim 9 is characterized in that, described fairlead is equipped with a positioning block towards the side of tool joint, and locating piece and fairlead are installed on the main shaft of inertia friction welder by securing member together; The center of described locating piece has a perforation, so that described jumper bar passes described locating piece and is inserted in the endoporus of tool joint, that end in the close tool joint of described perforation is provided with chamfering, and this chamfering constitutes second locating surface to the tool joint axial location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101159083A CN102211248A (en) | 2011-05-05 | 2011-05-05 | Oil drill rod connector, drill rod, inertia friction welding process and jig |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101159083A CN102211248A (en) | 2011-05-05 | 2011-05-05 | Oil drill rod connector, drill rod, inertia friction welding process and jig |
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| CN103953291A (en) * | 2014-05-12 | 2014-07-30 | 淮北恒远工程建材设备有限责任公司 | Triangular arc-shaped ribbed friction-welded drill rod and welding method thereof |
| CN106312440A (en) * | 2015-06-24 | 2017-01-11 | 钱立群 | Friction welding repair method for hollow steel drill rod |
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| CN106825903A (en) * | 2015-12-07 | 2017-06-13 | 上海航天设备制造总厂 | A kind of aluminium alloy conducting rod manufacture method |
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| CN108907447A (en) * | 2018-07-09 | 2018-11-30 | 山东大学 | The axial rub welding technique of high-nitrogen austenitic stainless steel and non magnetic drill collar |
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| CN111515520A (en) * | 2020-04-21 | 2020-08-11 | 中国兵器工业第五九研究所 | Synchronous axial welding method for variable-diameter multi-welding-surface revolving body component |
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| CN102773603A (en) * | 2012-07-10 | 2012-11-14 | 中国石油集团渤海石油装备制造有限公司 | V150 steel grade drill rod compression-joint forming process |
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| CN103953291A (en) * | 2014-05-12 | 2014-07-30 | 淮北恒远工程建材设备有限责任公司 | Triangular arc-shaped ribbed friction-welded drill rod and welding method thereof |
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| CN106312440A (en) * | 2015-06-24 | 2017-01-11 | 钱立群 | Friction welding repair method for hollow steel drill rod |
| CN106808081A (en) * | 2015-11-30 | 2017-06-09 | 首都航天机械公司 | A kind of connection method of aluminium alloy and stainless steel special profile revolving body member |
| CN106825903A (en) * | 2015-12-07 | 2017-06-13 | 上海航天设备制造总厂 | A kind of aluminium alloy conducting rod manufacture method |
| CN106825903B (en) * | 2015-12-07 | 2020-01-07 | 上海航天设备制造总厂 | Manufacturing method of aluminum alloy conducting rod |
| CN107461158A (en) * | 2017-08-31 | 2017-12-12 | 山西风雷钻具有限公司 | High strength friction welds heavy weight drill pipe |
| CN107420049A (en) * | 2017-09-12 | 2017-12-01 | 中国石油集团渤海石油装备制造有限公司 | A kind of full titanium alloy drilling rod of friction welding type |
| CN107511643A (en) * | 2017-09-25 | 2017-12-26 | 伊顿上飞（上海）航空管路制造有限公司 | Commercial airliner double-walled stainless steel tube processing method and frock |
| CN107511643B (en) * | 2017-09-25 | 2023-09-26 | 伊顿上飞（上海）航空管路制造有限公司 | Commercial large-scale passenger plane double-wall stainless steel tube processing method and tool |
| CN108907447A (en) * | 2018-07-09 | 2018-11-30 | 山东大学 | The axial rub welding technique of high-nitrogen austenitic stainless steel and non magnetic drill collar |
| CN108869706A (en) * | 2018-08-31 | 2018-11-23 | 沃德传动（天津）股份有限公司 | A kind of Air-Cooling Island is collided with the device of damage with convenient for assembly and anti-tooth shaft |
| CN109057725A (en) * | 2018-09-30 | 2018-12-21 | 山西风雷钻具有限公司 | One kind is risen and fallen cylindrical drill bar |
| CN111515520A (en) * | 2020-04-21 | 2020-08-11 | 中国兵器工业第五九研究所 | Synchronous axial welding method for variable-diameter multi-welding-surface revolving body component |
| CN111515520B (en) * | 2020-04-21 | 2021-10-01 | 中国兵器工业第五九研究所 | Synchronous axial welding method for variable-diameter multi-welding-surface revolving body component |
| CN114012241A (en) * | 2020-04-21 | 2022-02-08 | 中国兵器工业第五九研究所 | Friction welding method for revolving body component with closed cavity or closed channel |
| CN114012241B (en) * | 2020-04-21 | 2022-05-10 | 中国兵器工业第五九研究所 | Friction welding method for revolving body component with closed cavity or closed channel |
| CN111843174A (en) * | 2020-07-14 | 2020-10-30 | 贵州理工学院 | Friction welding method for non-magnetic metal material and special-shaped metal material |
| CN113857647A (en) * | 2021-11-01 | 2021-12-31 | 中国航空制造技术研究院 | Local damage repairing method for thin-wall revolving body structural part |
| CN113857647B (en) * | 2021-11-01 | 2023-02-28 | 中国航空制造技术研究院 | Local damage repairing method for thin-wall revolving body structural part |
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Application publication date: 20111012 |