CN101936951B - Method for detecting mechanical system of drilling machine well mouth drill stem flux leakage detector - Google Patents
Method for detecting mechanical system of drilling machine well mouth drill stem flux leakage detector Download PDFInfo
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- CN101936951B CN101936951B CN2010102246370A CN201010224637A CN101936951B CN 101936951 B CN101936951 B CN 101936951B CN 2010102246370 A CN2010102246370 A CN 2010102246370A CN 201010224637 A CN201010224637 A CN 201010224637A CN 101936951 B CN101936951 B CN 101936951B
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Abstract
The invention discloses a method for detecting the mechanical system of a drilling machine well mouth drill stem flux leakage detector. The mechanical system comprises a clamp arm device and a permanent magnetic detector device, wherein the clamp arm device can be closed in a cylindrical shape; an accommodating part is arranged in the clamp arm device, and a detector connecting seat is arranged in the accommodating part; and the detector device is arranged on the detector connecting seat. The detection method comprises the following steps: rendering the clamp arm device in an open state and positioning the clamp arm device at the well mouth position of the drilling machine; closing the clamp arm device and placing the upper part of the drill stem at the position of the well mouth of the drilling machine in the accommodating part; lifting the drill stem along the axial direction of the drill stem, and performing the flux leakage type flaw detection of the drill stem by using the permanent magnetic detector device; and opening the clamp arm device and withdrawing the clamp arm device from the well mouth of the drilling machine. The method can detect the drill stem without current and therefore can be directly used at the well mouth of the drilling machine and used conveniently; in addition, the detector device realizes the flux leakage flaw detection in a round trip process at the well mouth of a petroleum drilling machine, the detector is safe and explosion-proof and the manual washing of the drill stem is avoided.
Description
Technical field
The invention relates to a kind of detection method of rig well head drilling rod flux leakage detector mechanical system, the degree of injury of the online detection drilling rod metal of its ability.
Background technology
Drilling rod bears stretching, reverses, multiple load such as vibration in drilling process, and receives the violent friction and the erosion of high-pressure slurry, and service condition is very abominable.As fail in time to find that defectives such as crackle that the body of rod exists, pit, perforation will very easily cause drill rod breaking, even well bore such as scraps at major accident.
Therefore, need carry out carrying out flaw detection, to obtain the degree of impairment of drilling rod to drilling rod.Up to now; Extensively take factory building formula drilling rod fault detection system to detect the drilling rod degree of impairment; Its specific practice is, will detect department regularly delivering to professional drilling rod with drilling rod, behind artificial cleaning drilling rod surface; Under mechanical hook-up drives, drilling rod is detected through the excitatory failure detector of electromagnetic type, more qualified drilling rod is delivered the user thereafter with single horizontal mode.
Said factory building formula drilling rod fault detection system has like limit when using: 1, a large amount of drilling rods come and go carrying has not only influenced the drilling engineering progress, has also strengthened cost of drilling engineering; 2, for the engineering project of longer cycles such as deep-well, ultra deep well, marine drilling, strange land contract drilling, Chang Yin is difficult in time inspect drilling rod by ready samples and makes it be in running status in spite of wound, has increased the risk of engineering; 3, because the excitatory failure detector of electromagnetic type needs bigger electric current, therefore can not be used for inflammable and explosive occasion, for example the rig well head; 4, must carry out carrying out flaw detection to drilling rod in the horizontal direction, the characteristics of drilling rod vertical movement in the time of can't adapting to well head and make a trip.
Summary of the invention
The objective of the invention is, a kind of detection method of rig well head drilling rod flux leakage detector mechanical system is provided, it can carry out the detection of drilling rod damaged metal degree at the rig well head.
Above-mentioned purpose of the present invention can adopt following technical proposal to realize:
A kind of detection method of rig well head drilling rod flux leakage detector mechanical system; Said mechanical system comprises: the tong arm device, and it is expansible or closed the setting, at its closure state; Said tong arm device is cylindrical; Be provided with the holding part of perforation within it vertically, said drilling rod is arranged in said holding part movingly, is provided with the probe Connection Block in the said holding part; The probe apparatus of magneto, it is arranged on the probe Connection Block of tong arm device, and corresponding to said drilling rod; Said probe apparatus comprises that the probe assembly of a plurality of magnetos and a plurality of flexibility set upright assembly; Said flexibility is set upright assembly and is connected on the said probe Connection Block along circumferential direction; Each probe assembly correspondence is connected the inboard that flexibility is set upright assembly, and each probe assembly is set upright assembly through flexibility and can be tilted or reset setting; Each said probe assembly comprises permanent magnet; Yoke and leakage field sensor, said yoke is positioned at the outside of said permanent magnet, and said leakage field sensor is positioned at the centre of said permanent magnet; Yoke cooperates permanent magnet that said drilling rod is carried out local magnetized, and the leakage field sensor carries out the magnetic leakage signal detection simultaneously; Each flexibility is set upright assembly and is comprised an elastic parts and two guide wheel assemblies; Said elastic parts comprises main spring; Spring dead plate and locking cap; One end of said main spring connects spring dead plate, and the other end is connected on the centre position of said yoke, and said spring dead plate is connected on the probe Connection Block on the said tong arm device through locking cap; Each said guide wheel assembly comprises the probe guide wheel, wheel bracket and guide wheel bearing, and an end of said wheel bracket connects rotating probe guide wheel, and the other end connects the guide wheel bearing, and said guide wheel bearing is connected on the said yoke;
Said detection method comprises the steps: to make the tong arm device to be in open configuration, and makes the tong arm device be positioned at the position of rig well head; Make the tong arm device closed, the upper end of the drilling rod of rig well head is embraced in its holding part; The drilling rod of said rig well head axially is raised along said holding part; The medial extremity of the probe guide wheel of the probe apparatus of magneto is contacting the outside surface of drilling rod to be measured all the time; Make probe assembly and drilling rod keeping parallelism spacing to be measured; Probe assembly carries out the carrying out flaw detection of magnetic-leakage type to drilling rod, and sets upright assembly through flexibility, each probe assembly can be continuously through the joint area of drilling rod; The tong arm device is opened and recess the rig well head.
The characteristics and the advantage of the detection method of rig well head drilling rod flux leakage detector mechanical system of the present invention are:
1, can in the tripping operation process of oil-well rig well head, realize the magnetic leakage detection of drilling rod, thereby save the transportation that drilling rod is travelled to and fro between the pipe station, and the probe safety anti-explosive with need not the artificial drilling rod that cleans.
2, its probe apparatus is that probe assembly through magneto carries out carrying out flaw detection to drilling rod; Promptly; Make drilling rod to be measured produce local magnetized and magnetic leakage signal detection, that is to say that the probe apparatus in the embodiment of the invention does not need electric current to detect drilling rod; Therefore can directly be used for the rig well head, easy to use.
3, desludging device adopts air pressure desilt mode, has realized need not the direct carrying out flaw detection of artificial clear mud.
4, probe apparatus is set upright assembly through its flexibility and can be realized that drilling rod is the whole detection of unit with the thribble.
5, drilling machine platform is the checkered plates structure; If directly moving resistance can be very big on checkered plates for the wheel on the chassis of mechanical system; The setting of guide rail can reduce moving resistance; In addition, rail guidance on guide rail wheel, it further can reduce the rig slide to this mechanical system resistance of motion during rig floor up and down.
6, utilize the magnetic ground jack can make this device and drilling machine platform realize fast being connected reliably or separating.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic top plan view of rig well head drilling rod flux leakage detector mechanical system of the present invention;
Fig. 2 A is that the master of rig well head drilling rod flux leakage detector mechanical system of the present invention looks synoptic diagram;
Fig. 2 B is the schematic side view of rig well head drilling rod flux leakage detector mechanical system of the present invention;
Fig. 3 A is that the master of the probe apparatus of rig well head drilling rod flux leakage detector mechanical system of the present invention looks synoptic diagram;
Fig. 3 B is the schematic side view of the probe apparatus of rig well head drilling rod flux leakage detector mechanical system of the present invention;
Fig. 4 A is that the master of the desludging device of rig well head drilling rod flux leakage detector mechanical system of the present invention looks synoptic diagram;
Fig. 4 B is the schematic side view of the desludging device of rig well head drilling rod flux leakage detector mechanical system of the present invention;
Fig. 5 is the synoptic diagram of parts of the driving tong arm device of rig well head drilling rod flux leakage detector mechanical system of the present invention;
Fig. 6 is the view that buckle device is prepared the situation of shackle drilling rod of unloading of the present invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Cooperate shown in Fig. 1 to 6, the embodiment of the invention has proposed a kind of detection method of rig well head drilling rod flux leakage detector mechanical system, and said mechanical system comprises the probe apparatus 2 of tong arm device 1 and magneto.Said tong arm device 1 is expansible or closed the setting, and at its closure state, tong arm device 1 is cylindrical; And be provided with the holding part 11 of perforation within it vertically; Drilling rod Z is arranged in holding part 11 movingly, is provided with probe Connection Block 19 in the said holding part 11, herein; Drilling rod Z is arranged in holding part 11 with thribble (three be a group be connected in series end to end, be called thribble) for unit simultaneously.Said probe apparatus 2 is arranged on the probe Connection Block 19 of tong arm device 1, and corresponding to drilling rod Z.
Said detection method comprises the steps: at first to make tong arm device 1 to be in open configuration; And make tong arm device 1 be positioned at the position of rig well head; Then tong arm device 1 closure is embraced the upper end of the drilling rod Z to be measured of rig well head (this moment, the mud of outside surface of drilling rod Z was removed) in its holding part 11; Follow again; Vertical direction makes the drilling rod Z of said rig well head axially be raised along said holding part 11 evenly, and 2 couples of drilling rod Z of probe apparatus carry out the carrying out flaw detection of magnetic-leakage type, after the detection; Tong arm device 1 opens and recesses well head, and drilling rod Z is through being placed on the rig floor after the shackle.Above-mentioned use-pattern is to be used for drilling rod Z in make progress out the process of well of well head, and certainly, it also can be used for drilling rod in the process of well head to lower going-into-well, just 1 armful of bottom around the drilling rod to be measured of well head of tong arm device this moment.
In the embodiment of the invention, said probe apparatus 2 carries out carrying out flaw detection with the permanent magnetism mode to drilling rod Z, promptly; Make drilling rod to be measured produce local magnetized and magnetic leakage signal detection; That is to say that the probe apparatus 2 in the embodiment of the invention does not need electric current to detect drilling rod, therefore can directly be used for the rig well head; Easy to use, safety.
According to an embodiment of the invention; Said mechanical system also comprises desludging device 3; In said drilling rod (Z) lifting process, said detection method also comprises step: the mud through 3 pairs of said drilling rods of desludging device surface carries out purge, so that the mud on said drilling rod Z surface is removed; Said desludging device 3 is installed in the holding part 11 of tong arm device 1, and is positioned at the downside of probe apparatus 2.In the embodiment of the invention, when well head pulls out of hole, through desludging device 3 mud on drilling rod Z surface is removed earlier, then probe apparatus 2 can directly carry out carrying out flaw detection to drilling rod Z, has exempted the problem of artificial cleaning drilling rod.
Further; Cooperate shown in Fig. 4 A and Fig. 4 B; Said desludging device 3 comprises a plurality of mutual correspondences; And can open or closed purge nozzle group (having two purge nozzle groups here), each purge nozzle group comprises a plurality of purge nozzle 31 (having seven purge nozzle here), and the purge nozzle 31 in each purge nozzle group circumferentially is connected in the holding part 11 equably; Pressurized air can spray the mud that angle (spraying angle and can be 30～60 degree, for example is 30 degree) purges drilling rod Z surface with one through purge nozzle 31.That is to say that when well head pulled out of hole, what drilling rod Z went up adhesion was liquid mud, pressurized air can produce powerful effect of washing away to drilling rod Z surface when purge nozzle 31 sprays with an angle, thereby with air pressure desilt mode that the mud eliminating on drilling rod surface is clean.Wherein, the quantity of purge nozzle 31 is looked the diameter of drilling rod Z and is decided, and can have 30 nozzles at most.
Further, said desludging device also comprises silt remover shell 32, nozzle fixed head 33 and silt remover end cap 34.Silt remover shell 32 is installed on the tong arm device 1; Nozzle fixed head 33 is arranged in the silt remover shell 32, and purge nozzle 31 circumferentially is connected on the nozzle fixed head equably; Silt remover end cap 34 is connected on the end face of silt remover shell 32; Be provided with the perforation 341 of axial perforation in the middle of the silt remover end cap 34; The diameter of perforation 341 is more than or equal to the formed diameter of the jet hole of purge nozzle 31, so that pressurized air can be purged on the drilling rod Z from purge nozzle 31.
According to an embodiment of the invention; Said tong arm device 1 comprises two tong arms 12, the tube structure of each tong arm 12 semicircular in shape, and two ends of two tong arms 12 are corresponding each other respectively; One of them end connects with hinge 13; Another end can be rotated around hinge 13 respectively by the tong arm driver, opens or closed action with generation, realize tong arm device 1 and drilling rod separate or around function.When needs were embraced around drilling rod Z, tong arm 12 outwards rotated around hinge 13, makes tong arm device 1 be in open configuration; As shown in Figure 6; After treating that drilling rod Z gets into its holding part 11, tong arm 12 inwardly rotates around hinge 13, makes tong arm device 1 be in closure state; As shown in Figure 1, thus drilling rod Z is embraced in holding part 11.
Further; Said tong arm driver comprises two pull bars 14; The installation site of two pull bars 14 can be with respect to hinge 13 symmetries, and an end of pull bar 14 is installed in the outer proceeds posterolateral of tong arm 12 position of hinge 13 (promptly near), through moving forward and backward of pull bar 14; Then can drive tong arm 12 and inwardly or outwards rotate, thereby make tong arm device 1 closure or open setting.Wherein, pull bar 14 can be electronic pull bar, also can be the pull bar of dynamic hydraulic combined form.Here; Pull bar 14 is electronic pull bar, specifically is, the other end of pull bar 14 connects rotating driving leading screw 15; Driving leading screw 15 is supported on the fixing leading screw bearing 16 away from an end of tong arm 12; Drive motor 17 can drive and drive leading screw 15 rotations, and because leading screw bearing 16 is fixed, the rotation that therefore drives leading screw 15 makes pull bar 14 move forward and backward.
In addition, hinge 13 can be supported on the rocker bar bearing 18.
According to an embodiment of the invention; Cooperate shown in Fig. 3 A and Fig. 3 B; Said probe apparatus 2 comprises that the probe assembly 21 of a plurality of magnetos (for example can comprise 4 to 8 probe assemblies; Have six probe assemblies 21 here) and a plurality of flexibility set upright assembly 22, said flexibility is set upright assembly 22 and is connected on the said probe Connection Block 19 along circumferential direction, each probe assembly 21 correspondence is connected the inboard that flexibility is set upright assembly 22; And each probe assembly 21 is set upright assembly 22 setting of tilting or reset through flexibility so that probe assembly 21 can be continuously joint area through drilling rod.
Further, each said probe assembly 21 comprises permanent magnet 211, yoke 212 and leakage field sensor 213.Said yoke 212 is positioned at the outside (that is, yoke 212 is positioned at permanent magnet 211 opposite side relative with drilling rod) of permanent magnet 211, and leakage field sensor 213 is positioned at the centre of permanent magnet 211.When drilling rod Z when the holding part 11 of tong arm device 1 passes, yoke 212 cooperates 211 couples of drilling rod Z of permanent magnets to carry out local magnetized, leakage field sensor 213 carries out magnetic leakage signal and detects simultaneously, thereby learns whether drilling rod Z is specification product.Wherein, permanent magnet 211 can be the neodymium-iron-boron magnetic material composition.
Each flexibility is set upright assembly 22 and is comprised an elastic parts and two guide wheel assemblies.
Said elastic parts comprises main spring 221; Spring dead plate 222 and locking cap 223; One end of main spring 221 connects spring dead plate 222; The other end is connected in the centre position of said yoke 212 tops, and spring dead plate 222 is connected on the probe Connection Block 19 on the tong arm device 1 through locking cap 223;
Each guide wheel assembly comprises probe guide wheel 224; Wheel bracket 225 and guide wheel bearing 226; The medial extremity of said wheel bracket 225 connects rotating probe guide wheel 224, and outboard end connects guide wheel bearing 226, and said guide wheel bearing 226 is connected on the two ends of said yoke 212.
In use, the medial extremity of probe guide wheel 224 is contacting the outside surface of drilling rod Z to be measured all the time, makes probe assembly 21 and drilling rod Z keeping parallelism spacing to be measured; When the joint area of drilling rod arrived probe assembly 21, probe assembly changed angle automatically under the effect of guide wheel 224, and continued to move along the joint slope; After probe assembly arrived top, joint slope, probe assembly 21 automatically reset under the effect of main spring 221, made probe assembly 21 recover horizontality.
In addition; The home position of said probe guide wheel 224 is provided with and guides wheel shaft 227, in-line gears 228 and magneto-electric is housed near switch 229 on the guiding wheel shaft 227, and probe guide wheel 224 contacts with the drilling rod body of rod and friction takes place and rotates; The rotation of probe guide wheel 224 drives in-line gears 228 and rotates synchronously; When in-line gears 228 rotated, the angular displacement that it produced can be through exporting with the pulse signal form near switch 229, to obtain drilling rod Z axial displacement.
Wherein, but the size of appropriate change probe apparatus 2, and the drilling rod of size (for example 23/8～65/8 inch) detects can adapt in a big way.
According to an embodiment of the invention; Cooperate shown in Figure 2ly, said mechanical system also comprises base apparatus 4, and base apparatus 4 comprises chassis 41 and guide rail 42; Said tong arm device 1 is installed on the chassis 41, and chassis 41 drives tong arm device 1 and can be connected on the guide rail 42 with moving horizontally.
Further, the position of the bottom on said chassis 41 and corresponding guide rail 42 is equipped with wheel 43 and perpendicular displacement limited wheel 44.Mechanical system under external force; Wheel 43 drives tong arm device 1 through chassis 41 and moves on guide rail 42 together with the probe apparatus in it 2; Arrive correct position until tong arm device 1, simultaneously, perpendicular displacement limited wheel 44 can limit the displacement of chassis 41 in vertical direction; Promptly make chassis 41 to move in the horizontal direction, the power when avoiding drilling rod upwards to be raised makes tong arm device 1 disengaging chassis 41.When tong arm device 1 moves to suitable position; External force is removed (promptly stopping the motion of driving wheel 43) drilling rod to be measured and is upwards penetrated holding part 11; And in the process that continues to move upward; Because tong arm device 1 is not restriction in the horizontal direction, therefore, tong arm device 1 can move with the position adjustments in carrying out among a small circle according to the motion of drilling rod to be measured in the horizontal direction.
41 bottoms, chassis are provided with chassis ballast box 411, with gravity balance property and the kinetic stability that guarantees this detecting device.
Herein, cooperate shown in Figure 5ly, buncher 46 is through wheel 43; Bearing seat 47, bearing cap 48 is connected with chassis 41, when needs move tong arm device 1; Buncher 46 drive wheels 43; Making wheel 43 drive tong arm device 1 can be along guide rail 42 whole to-and-fro movement, and after tong arm device 1 arrived correct position, buncher 46 quit work.
The end of guide rail 42 is provided with rail guidance wheel 49, and it can produce the component that makes progress with the resistance of motion of reduction drilling rod slide to guide rail, thereby makes things convenient for said detecting device mechanical system to be pulled to rig floor via the drilling rod slide (not shown) integral body of rig.
In addition, a plurality of magnetic ground jacks 45 are installed, promptly on the said guide rail 42; Be connected through magnetic ground jack 45 between guide rail 42 and the rig floor; The purpose that a plurality of magnetic ground jacks 45 are set is, even the rig floor surface irregularity also can make guide rail 42 successfully be connected with rig floor; Can realize the fixing of guide rail 42 and rig floor and separate handoff functionality through the magnetic switch on the magnetic ground jack 45, in other words,, can open or cut off magnetic circuit, separate so that guide rail 42 can be fixed on the rig floor or with rig floor easily through operation magnetic ground jack 45.
Rig has the buckle device of unloading 5, unloads the drilling rod Z that buckle device 5 is used for detection is finished and unloads and be placed in rig floor from well head.The said buckle device 5 that unloads comprises hydraulic pipe wrench 51; One end of hydraulic pipe wrench 51 has the chuck of unloading 52; The other end connects hydraulic pipe wrench push rod 53, and when needs carried out the shackle operation, hydraulic pipe wrench push rod 53 promoted hydraulic pipe wrench 51 and stretches to well head; It unloads chuck 52 gripping drilling rod Z, so that drilling rod Z is unloaded from well head; Then hydraulic pipe wrench push rod 53 is regained, and the drilling rod Z that unloads is placed on the rig floor.
Wherein, As shown in Figure 6, said guide rail 42 should be as far as possible near Rotary table for drilling machine 7 but can not be in contact with it, so that this mechanical system can not clash with Rotary table for drilling machine 7 and hydraulic pipe wrench 51 when work; In addition, the axis of the axis of guide rail 42 and hydraulic pipe wrench 51 can keep the angle of about 90-100 degree.
The normal trip-out process of rig is described below:
Whole drilling rod is upwards promoted about 1 meter height in well;
Then, the mechanical system of the embodiment of the invention moves to well head under 41 the drive on chassis; And make tong arm device 1 clamp drilling rod, and make drilling rod begin upwards to promote 1 thribble height, meanwhile drilling rod is carried out magnetic leakage detection and detect; Behind to be detected the finishing; Drilling rod stops action, and tong arm device 1 opens, and mechanical system is recessed well head;
Then, utilize the slips (not shown) that drilling rod is fixed on the well head place, utilization is unloaded buckle device 5 and is moved to well head; Thribble on the slips and the decomposition of all the other drilling rods are come; Thribble after the decomposition is moved to be put on the racking of drill pipe platform, after the shackle action is accomplished, unloads buckle device 5 and leaves well head;
Then; The drilling rod at crane and slips place links up again; The mechanical system of the embodiment of the invention moves to well head again; Tong arm device 1 is clamped drilling rod and is continued to promote 1 thribble height and continue to promote 1 thribble height, so repeats till the drilling rod in the well is promoted one by one and has been decomposed.
Those skilled in the art are to be understood that; The detecting device mechanical system that the embodiment of the invention proposes; Need operate through control corresponding system 6; Those skilled in the art can adopt existing appropriate control system 6 to control the motion of said detecting device mechanical system, but because control system 6 is not the claimed inventive point of the embodiment of the invention, so be not described in detail.
The above is merely several embodiments of the present invention, and those skilled in the art can carry out various changes or modification to the embodiment of the invention and do not break away from the spirit and scope of the present invention according to application documents are disclosed.
Claims (8)
1. the detection method of a rig well head drilling rod flux leakage detector mechanical system is characterized in that said mechanical system comprises:
Tong arm device (1), it is expansible or closed the setting, at its closure state; Said tong arm device (1) is cylindrical; Be provided with the holding part (11) of perforation within it vertically, said drilling rod (Z) is arranged in said holding part (11) movingly, is provided with probe Connection Block (19) in the said holding part (11);
The probe apparatus of magneto (2), it is arranged on the probe Connection Block (19) of tong arm device (1), and corresponding to said drilling rod; Said probe apparatus (2) comprises that the probe assembly (21) of a plurality of magnetos and a plurality of flexibility set upright assembly (22); Said flexibility is set upright assembly (22) and is connected on the said probe Connection Block (19) along circumferential direction; Each probe assembly correspondence is connected the inboard that flexibility is set upright assembly, and each probe assembly is set upright assembly through flexibility and can be tilted or reset setting;
Each said probe assembly (21) comprises permanent magnet (211); Yoke (212) and leakage field sensor (213); Said yoke is positioned at the outside of said permanent magnet; Said leakage field sensor is positioned at the centre of said permanent magnet, and yoke cooperates permanent magnet that said drilling rod (Z) is carried out local magnetized, and the leakage field sensor carries out the magnetic leakage signal detection simultaneously; Each flexibility is set upright assembly (22) and is comprised an elastic parts and two guide wheel assemblies; Said elastic parts comprises main spring (221); Spring dead plate (222) and locking cap (223); One end of said main spring connects spring dead plate; The other end is connected on the centre position of said yoke, and said spring dead plate is connected on the probe Connection Block on the said tong arm device through locking cap; Each said guide wheel assembly comprises probe guide wheel (224), wheel bracket (225) and guide wheel bearing (226), and an end of said wheel bracket connects rotating probe guide wheel, and the other end connects the guide wheel bearing, and said guide wheel bearing is connected on the said yoke;
Said detection method comprises the steps:
Make tong arm device (1) be in open configuration, and make the tong arm device be positioned at the position of rig well head;
Make tong arm device (1) closure, the upper end of the drilling rod (Z) of rig well head is embraced in its holding part (11);
The drilling rod (Z) of said rig well head axially is raised along said holding part (11); The medial extremity of the probe guide wheel (224) of the probe apparatus of magneto (2) is contacting the outside surface of drilling rod to be measured (Z) all the time; Make probe assembly (21) and drilling rod to be measured (Z) keeping parallelism spacing; Probe assembly (21) carries out the carrying out flaw detection of magnetic-leakage type to drilling rod, and sets upright assembly (22) through flexibility, each probe assembly (21) can be continuously through the joint area of drilling rod;
Tong arm device (1) is opened and recess the rig well head.
2. the detection method of rig well head drilling rod flux leakage detector mechanical system according to claim 1; It is characterized in that; In said drilling rod (Z) lifting process, also comprise step: through desludging device (3) the surperficial mud of said drilling rod is carried out purge, wherein; Said desludging device is installed in the said holding part (11), and is positioned at the downside of said probe apparatus (2).
3. the detection method of rig well head drilling rod flux leakage detector mechanical system according to claim 2 is characterized in that said desludging device (3) comprising:
A plurality of mutual correspondences; And can open or closed purge nozzle group; Each purge nozzle group comprises a plurality of purge nozzle (31); Purge nozzle in each purge nozzle group circumferentially is connected in the said holding part (11) equably, and pressurized air can spray the mud that angle purges said drilling rod surface with one through said purge nozzle;
Silt remover shell (32), it is installed on the said tong arm device (1);
Nozzle fixed head (33), it is arranged in the silt remover shell, and said purge nozzle circumferentially is connected on the nozzle fixed head equably;
Silt remover end cap (34), it is connected on the end face of silt remover shell, is provided with the perforation of axial perforation in the middle of the said silt remover end cap, so that said pressurized air can be purged on the said drilling rod from said purge nozzle.
4. the detection method of rig well head drilling rod flux leakage detector mechanical system according to claim 1 is characterized in that said tong arm device (1) comprising:
Two tong arms (12), the tube structure of each tong arm semicircular in shape, two ends of two tong arms are corresponding each other respectively, and one of them end connects with hinge (13), and another end respectively can be around hinge through by the tong arm driver;
Two pull bars (14); The installation site of two pull bars is with respect to said hinge symmetry, and an end of each pull bar is installed in the outer proceeds posterolateral of said tong arm, through moving forward and backward of pull bar; Then can drive tong arm (12) and inwardly or outwards rotate, thereby make tong arm device (1) closure or open setting.
5. the detection method of rig well head drilling rod flux leakage detector mechanical system according to claim 4; It is characterized in that; The other end of said pull bar (14) connects rotating driving leading screw (15); Driving leading screw (15) is supported on the fixing leading screw bearing (16) away from an end of said tong arm (12), and drive motor (17) drives and drives leading screw (15) rotation, and the rotation that drives leading screw (15) makes pull bar (14) move forward and backward.
6. the detection method of rig well head drilling rod flux leakage detector mechanical system according to claim 1; It is characterized in that; The home position of said probe guide wheel (224) is provided with guiding wheel shaft (227); In-line gears (228) and magneto-electric are housed near switch (229) on the guiding wheel shaft (227), said in-line gears (228) rotate with the probe guide wheel synchronously, and in-line gears (228) rotate the angular displacement that is produced to be passed through to export with the pulse signal form near switch (229).
7. the detection method of rig well head drilling rod flux leakage detector mechanical system according to claim 1; It is characterized in that; Said mechanical system also comprises base apparatus (4); Said base apparatus comprises chassis (41) and guide rail (42), and said tong arm device (1) is installed on the chassis, and said chassis drives the tong arm device and can be connected on the guide rail with moving horizontally;
The position of the bottom on said chassis and corresponding guide rail is equipped with wheel (43) and perpendicular displacement limited wheel (44); Said chassis (41) can be arranged on the said guide rail by wheel (43) with moving horizontally, and said perpendicular displacement limited wheel (44) limits the motion of said chassis (41) in vertical direction.
8. the detection method of rig well head drilling rod flux leakage detector mechanical system according to claim 7 is characterized in that, the end of said guide rail (42) is provided with rail guidance wheel (49); Be connected through magnetic ground jack (45) between said guide rail (42) and the rig floor.
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| CN2010102246370A CN101936951B (en) | 2010-07-05 | 2010-07-05 | Method for detecting mechanical system of drilling machine well mouth drill stem flux leakage detector |
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| CN2010102246370A CN101936951B (en) | 2010-07-05 | 2010-07-05 | Method for detecting mechanical system of drilling machine well mouth drill stem flux leakage detector |
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| CN101936951B true CN101936951B (en) | 2012-05-23 |
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| CN104390450B (en) * | 2014-10-30 | 2017-05-03 | 江苏兴达钢帘线股份有限公司 | Annular blowing device for steel wire |
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| CN101936951A (en) | 2011-01-05 |
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