CN201738829U

CN201738829U - Pipe connector

Info

Publication number: CN201738829U
Application number: CN2010202748033U
Authority: CN
Inventors: 宇星; 陈俊; 单代伟
Original assignee: Sichuan Honghua Petroleum Equipment Co Ltd
Current assignee: Sichuan Honghua Petroleum Equipment Co Ltd
Priority date: 2010-07-29
Filing date: 2010-07-29
Publication date: 2011-02-09
Anticipated expiration: 2020-07-29

Abstract

The utility model discloses a pipe connector which belongs to the petroleum drilling field, and aims to provide a simple-structured and easy-operating pipe connector, which requires no other assistant facilities in fast performing lifting and putting down a drilling rod, screwing on and tightening of the drilling rod and finishing lower casing work. The pipe connector comprises a main shaft (1), and is characterized in that a bearing cylindrical shell (12) is connected onto the main shaft (1), a rotating oil sleeve (2) is sleeved on the bearing cylindrical shell (12), the lower end of the bearing cylindrical shell (12) is connected to a first slips seat body (10) and a second slips seat body (5), and both the first slips seat body (10) and the second slips seat body (5) have a clamping device and a locking device arranged thereon. The pipe connector is applicable to the petroleum drilling field.

Description

A kind of pipe connector

Technical field

The utility model relates to a kind of petroleum drilling and mining device, particularly a kind of pipe linkage.

Background technology

In field of petroleum exploitation, in order to improve rig efficient and to reduce drilling cost, modern rig trip crane system all is equipped with the top to drive or power swivel usually, and the top is driven and is applicable to large-scale rig and darker drilling well, and power swivel is applicable to light rig.No matter be the rig of which kind of type, in drilling process, all need to mention and transfer the operation of drilling rod, the operation of installing and unloading setting of casing, this process then needs a lot of facility to cooperatively interact just to finish, such as iron driller, liquid gas tong, casing tong etc.Generally speaking, be furnished with the rig that drives of top when mentioning and transfer drilling rod, iron driller or liquid gas tong need be cooperated and could operate, and more need the cooperation of casing tong during casing job.If under the situation of only being furnished with power swivel, except the cooperation that needs iron driller, liquid gas tong, casing tong, when mentioning drilling rod, all need to carry out once going up the shackle operation at every turn, more need adapter to realize connecing the button operation when unloading setting of casing with the screw thread and the drilling rod of main shaft.Just wasted a large amount of time like this in drilling process, thereby reduced the efficient of drilling well, the life-span of drilling equipment also can reduce greatly, is being furnished with under the situation of casing tong simultaneously, also can occupy the operating space of drilling well table top, and whole operation is quite inconvenient.

The utility model content

Goal of the invention of the present utility model is: at the problem of above-mentioned existence, provide a kind of simple in structure, easy to operate, do not use other facility just can finish fast to mention and transfer drilling rod, and finish drilling rod on detain and link closely, can finish the pipe connector of casing job simultaneously.

The technical solution adopted in the utility model is as follows:

Pipe connector of the present utility model, comprise main shaft, be connected with the load cylindrical shell on the described main shaft, be set with the rotation oil jacket on the described load cylindrical shell, the lower end of described load cylindrical shell is connected with the first slips pedestal, the lower end of described load cylindrical shell is connected with the second slips pedestal, and the described first slips pedestal is provided with second clamping device and second locking device, and the described second slips pedestal is provided with first clamping device and first locking device.

Owing to adopted above-mentioned structure, close up jointed rod or pipe by the first slips pedestal and the second slips pedestal, and bear the weight of drilling rod or pipe, because the first slips pedestal and the second slips pedestal are connected on the load cylindrical shell, so the load cylindrical shell bears the weight of drilling rod or pipe, because the load cylindrical shell is fixedly connected on the main shaft, thus again weight transmitting to main shaft.When the first slips pedestal and the second slips pedestal close up, need fixedly drilling rod or pipe, at this moment need by first clamping device and second clamping device, the upper end of drilling rod or pipe is clamped, avoid drilling rod or pipe to rotate, and avoid its landing or take off, drilling rod or pipe are pinned tightly by first locking device and second locking device with respect to pipe connector, thereby conveniently mention drilling rod or pipe, avoid it to come off simultaneously.Because the slips pedestal adopts symmetrical two to be spliced into an integral body, such structure had both made things convenient for the connector installation and removal, had also made things convenient for the installation and removal of drilling rod and/or pipe simultaneously.The external side of loaded cylinder is connected with the rotation oil jacket, the rotation oil jacket can freely rotate with respect to the load cylindrical shell, it mainly is by being association of activity and inertia between rotation oil jacket and the load cylindrical shell, realize the transmission of hydraulic oil, solve the moving of load cylindrical shell and rotated between oil jacket quiet the problem that can't be connected by oil supply pipe, and reduced the oil supply pipe quantity on the pipe connector.

Described first clamping device or second clamping device comprise clamping cylinder, are connected with pliers tooth base on the clamping cylinder piston of described clamping cylinder.

Owing to adopt said structure, when needs clamp drilling rod or pipe, control fuel tap door on the control oil cylinder cover supplies hydraulic oil in clamping cylinder, because clamping cylinder piston and the sealing of clamping cylinder inboard wall of cylinder block, hydraulic oil enters in the clamping cylinder, moves thereby promote the clamping cylinder piston, moves to slips pedestal internal direction thereby promote to clamp pliers tooth base, clamping pliers tooth base acting in conjunction in the first slips pedestal and the second slips pedestal clamps drilling rod or pipe.Owing to be connected with pliers tooth base on the clamping cylinder piston, the work plane of pliers tooth base is provided with and drilling rod or the corresponding pliers tooth base tooth of pipe clamping place or screw thread or striped, make drilling rod or pipe in rotary course, pliers tooth base is more and more tightr with combining of drilling rod or pipe, thereby clamping device provides moment of torsion to drilling rod or pipe, make drilling rod or pipe rotate simultaneously, thereby play the effect of clamping with pipe connector.Clamp operation convenience very, time saving and energy saving, and, make structure more stable by the hydraulic control clamping device, guaranteed the safety of whole pipe connector.

Be provided with the clamping oil back chamber between the inboard wall of cylinder block of described clamping cylinder cylinder body and the clamping cylinder piston, described clamping oil back chamber comprises the clamping cylinder annular oil groove on the inboard wall of cylinder block that is arranged at clamping cylinder and is arranged at the clamping piston annular oil groove in the clamping cylinder piston outside.

Owing to adopted said structure, between the inboard wall of cylinder block of clamping cylinder and clamping cylinder piston, be provided with the clamping oil back chamber, and the sealing of the position beyond the clamping oil back chamber, when needs loosen drilling rod or pipe, only need the control fuel tap door on the control clamping cylinder, in the clamping oil back chamber of clamping cylinder, supply hydraulic oil, hydraulic oil in the clamping cylinder is discharged, move thereby promote clamping piston, clamping piston drives the clamping pliers tooth base and moves to slip spider external body direction, and the clamping pliers tooth base in the first slips pedestal and the second slips pedestal moves jointly, thereby loosened clamping, made the clamping cylinder piston reset drilling rod or pipe.It is very convenient to loosen clamp operation, time saving and energy saving, and by hydraulic control, makes structure more stable, has guaranteed the safety of whole pipe connector.

Described first locking device or second locking device comprise the locking cylinder cylindrical shell, be connected with back shroud on the described locking cylinder cylindrical shell, the inside of described locking cylinder cylindrical shell is provided with localization handspike, be set with locking cylinder piston and conical surface piston on the described localization handspike, be provided with the oil duct cavity in the described locking cylinder piston, the side of described oil duct cavity is provided with locating hole, be provided with the locking cone piece in the described locating hole, the inclined-plane or the cone match of described locking cone piece and conical surface piston, and be socketed on described locking cylinder cylinder inboard wall, be connected with the pipe elevator on the described localization handspike.

Owing to adopted said structure, when needs carry out locking operation to drilling rod or pipe, only need control control fuel tap door, in the locking cylinder cylindrical shell, supply hydraulic oil, thereby promoting conical surface piston moves, promoting the locking cylinder piston again moves, promoting localization handspike under the acting in conjunction of conical surface piston and locking cylinder piston moves, because an end of the nearly slips base vivo wall of localization handspike is connected with the pipe elevator, so promoting the direction of pipe elevator to slips pedestal inside, moves localization handspike, under the pipe elevator acting in conjunction in the first slips pedestal and the second slips pedestal, to drilling rod and or pipe lock, restriction drilling rod or pipe come off.When needs loosen locking, the interior hydraulic oil of locking cylinder cylindrical shell of draining gets final product, because the inclined-plane or the cone match of described locking cone piece and conical surface piston, and be socketed on described locking cylinder cylinder inboard wall, make the locking cone piece closely contact with the locking cylinder cylinder inboard wall, simultaneously, limited the locking cylinder piston and further moved to the back shroud direction with the inclined-plane or the cone match of conical surface piston.Locking operation is very convenient, and is time saving and energy saving, and by hydraulic control, makes structure more stable, guaranteed the safety of whole pipe connector.

Be provided with oil back chamber between the inwall of described first locking device or second locking device, locking cylinder piston and the localization handspike, described oil back chamber comprises the annular oil-feed tank on the inwall that is arranged at first locking device or second locking device, and described locking cylinder piston is provided with the release oil duct that is communicated with oil duct cavity and oil back chamber.

Owing to adopted said structure, when needs loosen first locking device, second locking device to the locking of drilling rod or pipe, only need the control fuel tap door on control first locking device and second locking device, supply hydraulic oil in the oil back chamber in first locking device and second locking device, make the interior hydraulic oil of oil back chamber pass through the release oil duct on the locking cylinder piston, flow in the oil duct cavity, get rid of original hydraulic oil in the locking cylinder cylindrical shell simultaneously, thereby promoting conical surface piston and locking cylinder piston moves simultaneously, described locking cone piece is arranged in the side locating hole of oil duct cavity, and the inclined-plane or the cone match of described locking cone piece and conical surface piston, and be socketed on described locking cylinder cylinder inboard wall, the motion in a restriction locking cylinder nearly step of piston.The locking cylinder piston moves, and makes the pipe elevator can move to the external wall direction of slip spider with localization handspike, and first locking device and second locking device are worked simultaneously, have loosened the locking to drilling rod or pipe, thereby makes each parts in the locking device reset.The releasing locking operation is very convenient, and is time saving and energy saving, and by hydraulic control, makes structure more stable, guaranteed the safety of whole pipe connector.

The inwall of described rotation oil jacket is provided with annular oil groove, and the oil duct junction of the oil duct that described annular oil groove is interior with being arranged at the load cylindrical shell is corresponding, and the top of described rotation oil jacket is connected with lifting bolt.

Owing to adopted said structure, at the inwall that rotates oil jacket annular oil groove is set, between each annular oil groove, be provided with rotatory sealing, make that the hydraulic oil between adjacent two oil grooves can not revealed mutually, guaranteed the sealing between each oil groove.Outside outermost oil groove, also be provided with rotatory sealing, make sealing between outermost oil groove and the oil groove outside.Because the oil duct junction in the load cylindrical shell is corresponding with cannelure, make when the load cylindrical shell rotates, its oil duct junction is all the time in cannelure, guaranteed that the fuel feeding in the load cylindrical shell is unimpeded, thereby guarantee the transmission of hydraulic oil between load cylindrical shell and the rotation oil jacket, solved between the sound connection and can't use the direct-connected problem of pipeline, made sound can directly carry out the transmission of hydraulic oil between connecting.The top of rotation oil jacket is connected with lifting bolt, on the lifting bolt can by rope be connected that the top is driven or power swivel on, make the rotation oil duct to drive or power swivel maintains static with respect to the top.

The described first slips pedestal and the second slips pedestal are connected on the convex edge of load cylindrical shell lower end, and the first slips pedestal and the second slips pedestal are located by connecting by bearing torque pin and load cylindrical shell.

Owing to adopt said structure, be provided with the convex edge in load cylindrical shell lower end, be provided with and the corresponding groove in this convex edge in the inside of the first slips pedestal and the second slips pedestal, the weight of slips pedestal more can be born in the convex edge of load cylindrical shell, thereby makes more steady the leaning on that be connected between load cylindrical shell and the first slips pedestal and the second slips pedestal.The load cylindrical shell is provided with the bearing torque pin, the top of the first slips pedestal and the second slips pedestal is provided with the consign hole corresponding with the bearing torque pin, when the first slips pedestal and the second slips pedestal close up, the bearing torque pin promptly snaps onto in the hole of consigning, make bearing torque pin load cylindrical shell to bearing the moment of torsion that the first slips pedestal and the second slips pedestal rotate, win slip spider body and the second slips pedestal can not rotated with respect to the load cylindrical shell, guarantee the relative fixed between load cylindrical shell and the slips pedestal.

Be provided with rectangular channel on the inwall of the described first slips pedestal and the second slips pedestal, it is interior and free movable with respect to rectangular channel that described clamping pliers tooth base and pipe elevator are arranged at rectangular channel respectively.

Owing to adopted said structure, the indoor design of slips pedestal rectangular channel, bear the weight that clamps pliers tooth base and pipe elevator, define clamping pliers tooth base and pipe elevator motion track in slips pedestal inside, and guaranteed that clamping pliers tooth base and pipe elevator are moving on the horizontal direction all the time, and deviation does not take place, and so more helping oil cylinder to get inwall and oil cylinder piston, the minimizing oil cylinder gets the wearing and tearing between inwall and the oil cylinder piston.The pipe elevator is stuck in the rectangular channel simultaneously, and the colluding of apparatus transmission that can also bear the pipe connector lower end carried.

The described first slips pedestal is connected with guide cover, and the lower end of the described second slips pedestal is connected with guide cover.

Owing to adopted said structure, be provided with guide cover, in the time of needs jointed rod or pipe, only need be inserted into pipe connector inside along the inward flange of guide cover gets final product, when having avoided drilling rod or pipe to put into pipe connector, drilling rod or pipe are put on the bias, thereby cause the generation deviation of clamp operation and locking operation and can't clamp and lock the drilling rod pipe.

In sum, owing to adopted technique scheme, the beneficial effects of the utility model are:

1. the utility model is simple in structure, easy to operate, and uses hydraulic control, and is time saving and energy saving, less time of mentioning and installing bull stick or sleeve pipe operation, the efficient of increase drilling well;

2. between rotation oil jacket of the present utility model and the load cylindrical shell, adopt sound to connect fuel feeding, make and when the load cylindrical shell rotates, can transmit hydraulic oil, solved the problem of fuel feeding between sound connects, reduced the oil supply pipe on the connector, make structure more compact, reduced the operating space;

3. the utility model is by control clamping device and locking device, do not use other facility just can finish fast to mention and transfer drilling rod, and finish drilling rod on detain and link closely, the while can be finished casing job;

4. the utility model adopts hydraulic control, make clamp and the operation of locking solid and reliable, operate saferly, reduced the life-span that loaded down with trivial details operation has improved drilling equipment simultaneously, be adapted at the popularization of petroleum drilling and mining field.

Description of drawings

Fig. 1 is a shaft side figure of the present utility model;

Fig. 2 is that structure of the present utility model is partly cutd open figure;

Fig. 3 is the partial enlarged drawing of Z part among Fig. 2;

Fig. 4 is the partial enlarged drawing of X part among Fig. 2.

Mark among the figure: 1-main shaft, 2-rotates oil jacket, 3-first clamping device, 4-first locking device, the 5-second slips pedestal, the 6-guide cover, 7-ships and resell on another market, 8-pipe elevator, 9-clamps pliers tooth base, the 10-first slips pedestal, 11-bearing torque pin, 12-load cylindrical shell, the 13-localization handspike, 13a-push rod head, 13b-push rod portion, the 14-piston seal, 15-locking cylinder piston, 16-locking cylinder cylindrical shell, 17-locking cone piece, 18-conical surface piston, the 19-back shroud, 20-release oil duct, 21-O shape circle, 22-annular oil-feed tank, the 23-bolt, the 24-lifting bolt, 25-rotatory sealing, the 26-guidance tape, the 27-dust ring, 28-clamping cylinder piston, the 29-block, the 30-oil cylinder cover, the 31-clamping cylinder, 32-clamping cylinder annular oil groove, 33-clamping piston annular oil groove, 34-clamps oil back chamber, 35-oil duct cavity, the 36-oil back chamber, the 37-annular oil groove, the 38-rectangular channel, 39-second clamping device, 40-second locking device.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is done detailed explanation.

In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

Embodiment 1 is as Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, pipe connector of the present utility model, comprise main shaft 1, described main shaft 1 is fixedlyed connected with the load cylindrical shell 12 of its below, the surperficial suit of described load cylindrical shell 12 is connected with the rotation oil jacket 2 that freely rotates with respect to load cylindrical shell 12, be connected with the first slips pedestal 10 and the second slips pedestal 5 on the convex edge of described load cylindrical shell 12 lower ends, 7 be connected by shipping and reselling on another market between the described first slips pedestal 10 and the second slips pedestal 5, the described first slips pedestal 10 is provided with second clamping device 39 and second locking device, 40, the second slips pedestals 5 are provided with first clamping device 3 and first locking device 4.Described first clamping device 3 or second clamping device 39 comprise clamping cylinder 31, are connected with pliers tooth base 9 on the clamping cylinder piston 28 of described clamping cylinder 31.Be provided with between the inboard wall of cylinder block of described clamping cylinder 31 and the clamping cylinder piston 28 and clamp oil back chamber 34, described clamping oil back chamber 34 comprises the clamping cylinder annular oil groove 32 on the inboard wall of cylinder block that is arranged at clamping cylinder 31 and is arranged at the clamping piston annular oil groove 33 in clamping cylinder piston 28 outsides.Described first locking device 4 or second locking device 40 comprise locking cylinder cylindrical shell 16, be connected with back shroud 19 on the described locking cylinder cylindrical shell 16, the inside of described locking cylinder cylindrical shell 16 is provided with localization handspike 13, be set with locking cylinder piston 15 and conical surface piston 18 on the described localization handspike 13, be provided with oil duct cavity 35 in the described locking cylinder piston 15, the side of described oil duct cavity 35 is provided with locating hole, be provided with locking cone piece 17 in the described locating hole, the inclined-plane or the cone match of described locking cone piece 17 and conical surface piston 18, and be socketed on described locking cylinder cylindrical shell 16 inwalls, be connected with pipe elevator 8 on the described localization handspike 13.Be provided with oil back chamber 36 between inwall, locking cylinder piston 15 and the localization handspike 13 of described first locking device 4 or second locking device 40, described oil back chamber 36 comprises the annular oil-feed tank 22 on the inwall that is arranged at first locking device 4 or second locking device 40, and described locking cylinder piston 15 is provided with the release oil duct 20 that is communicated with oil duct cavity 35 and oil back chamber 36.Be provided with annular oil groove 37 in the described rotation oil jacket 2, described annular oil groove 37 is corresponding with the oil duct junction of oil duct in being arranged at load cylindrical shell 12, and the top of described rotation oil jacket 2 is connected with lifting bolt 24.The described first slips pedestal 10 and the second slips pedestal 5 are connected on the convex edge of load cylindrical shell 12 lower ends, and the first slips pedestal 10 and the second slips pedestal 5 are located by connecting by bearing torque pin 11 and load cylindrical shell 12.Be provided with rectangular channel 38 on the inwall of the described first slips pedestal 10 and the second slips pedestal 5, it is interior and free movable with respect to rectangular channel 38 that described clamping pliers tooth base 9 and pipe elevator 8 are arranged at rectangular channel 38 respectively.The described first slips pedestal 10 is connected with guide cover 6, and the lower end of the described second slips pedestal 5 is connected with guide cover 6.

Pipe connector of the present utility model, wherein main shaft 1 is a round tube shape, the upper end of main shaft 1 be connected the top drive or power swivel on, the lower end of main shaft 1 is the structure of flange, and this flange arrangement is contained in the load cylindrical shell 12, is connected by screw or bolt with load cylindrical shell 12, top at load cylindrical shell 12 also is provided with bearing torque pin 11, bearing torque pin 11 connects load cylindrical shell 12 and main shaft 1 respectively, makes when main shaft rotates, and drives load cylindrical shell 12 by bearing torque pin 11 and rotates.Certainly main shaft 1 also can be connected in beyond the load cylindrical shell 12, and fixedlys connected with the upper surface of load cylindrical shell 12.

Load cylindrical shell 12 is a tubular construction, its top is a manhole, the diameter of this through hole and the external diameter of main shaft 1 equate or are slightly larger than the external diameter of main shaft 1, this manhole also can omit when certainly main shaft 1 was connected in beyond the load cylindrical shell 12, around the through hole is and corresponding bolt hole of the flange of main shaft and bearing torque pin-and-hole that load cylindrical shell 12 is fixedlyed connected with the bearing torque pin by bolt with main shaft 1.The cylinder internal diameter of load cylindrical shell 12 is more bigger than the external diameter of the flange of main shaft 1, can freely put into taking-up with flange and be advisable.The place of the inwall top of load cylindrical shell 12 and main shaft 1 flange contact is the plane corresponding with flange, its size can with the flange equal diameters, also can be as the criterion putting down flange fully greater than the flange diameter.

Described load cylindrical shell 12 outer upper suits are connected with the rotation oil jacket 2 that freely rotates with respect to load cylindrical shell 12, load cylindrical shell 12 outsides are provided with the two-stage step with rotation junction, oil jacket 2 lower end, and the bottom inside of described rotation oil jacket 2 is provided with and the corresponding step of the step of load cylindrical shell 12.The inside of the tubular construction of load cylindrical shell 12 is provided with four oil ducts, each oil duct junction with the rotation oil jacket 2 each oil duct annular groove y direction on highly identical, and oil duct junction all the time with the rotation oil jacket 2 the oil duct annular groove corresponding.Oil duct is arranged at the inside of load cylindrical shell 12, can also can dig out a passage in load cylindrical shell 12 for the pipeline of installing, and makes oil duct unimpededly to be as the criterion.Another outlet of each oil duct is arranged at the side of the bottom of load cylindrical shell 12, and this oil duct junction is connected with clamping device 3, locking device 4 respectively by oil supply pipe, is used to control the fuel feeding of clamping device and locking device.The lower end of described load cylindrical shell 12 is combined with the convex annular edge, and the width of this convex edge is as the criterion cooperatively interacting with the first slips pedestal 10 and the second slips pedestal 5, and this convex edge is the structure of an annulus around load cylindrical shell 12.Described convex edge can be arranged at the least significant end of load cylindrical shell 12, the low end surface of convex edge and the lower curtate end face of load cylindrical shell 12; The convex edge also can be arranged on above load cylindrical shell 12 external surfaces in load cylindrical shell 12 bottoms.Above this convex edge, be provided with two outstanding positions, can be designed to a plurality of outstanding positions according to actual conditions, be respectively arranged with bearing torque pin 11 in this protruding part, the upper top of the first slips pedestal 10 and the second slips pedestal 5 is respectively arranged with the bearing torque hole, and described bearing torque pin 11 is corresponding with the bearing torque hole of the upper top of the first slips pedestal 10 and the second slips pedestal 5 respectively.Spring or other elastomeric elements are set in this bearing torque pin 11, make bearing torque pin 11 bear downward power, when closing up, the first slips pedestal 10 or the second slips pedestal 5 make bearing torque pin 11 be limited in the bearing torque hole, can not jump out, and limit the first slips pedestal 10 and the second slips pedestal 5 rotates with respect to load cylindrical shell 12 because connector of the present utility model rotation; When the first slips pedestal 10 or the second slips pedestal 5 separately the time, bearing torque pin 11 blocks the first slips pedestal 10 or the second slips pedestal 5, and it can not separated automatically, thus the safety when guaranteeing to unload pipe.Certainly, a plurality of bearing torque pins, the transmission of bearing moment of torsion also can be set as required.Under the drive that main shaft 1 drives on the top, rotate, bearing torque pin 11 and bolt by load cylindrical shell 12 tops, drive 12 rotations of load cylindrical shell, bearing torque pin 11 by load cylindrical shell 12 lower ends drives whole first slips pedestal 10 and 5 rotations of the second slips pedestal again, and the drilling rod or the pipe that drive the first slips pedestal 10 and 5 clampings of the second slips pedestal and locking again rotate.What load cylindrical shell 12 tops exceeded rotation oil jacket 2 tops is provided with two blocks 29 in appearance, block 29 blocks rotation oil jacket 2 tops, avoid rotating oil jacket 2 beating on the y direction taken place in rotary course, make the annular oil groove of rotation oil jacket 2 align with the oil duct junction of load cylindrical shell 12 all the time, keep its sealing.

The upper outside suit of load cylindrical shell 12 is connected with rotation oil jacket 2, and rotation oil jacket 2 is the structure of similar shell-like, and its internal diameter equates with load cylindrical shell 12 top external diameters or is slightly larger than its external diameter, and is suitable being sealed into mutually.Rotation oil jacket 2 is set to equate with load cylindrical shell 12 lower outer diameter for attractive in appearance and easy for installation.The shell of rotation oil jacket 2 is provided with four oil holes of differing heights on the ordinate direction, and oil hole is connected with the external oil supply pipe of connector of the present utility model respectively.On the oil hole position of inwall of rotation oil jacket 2, four annular oil grooves with the same longitudinal axis height of oil hole are arranged, be provided with rotatory sealing 25 between each oil duct annular groove, rotatory sealing 25 is installed in the rotatory sealing annular groove.To guarantee the sealing between each oil duct annular groove.Also be provided with two rotatory sealings 25 outside the outermost two oil duct annular grooves of oil duct annular groove,,, also can add to establish rotatory sealing 25 certainly for better tightness to guarantee the sealing between the oil duct annular groove and the external world.The upper top of described rotation oil jacket 2 is provided with two outstanding positions, a plurality of outstanding positions also can be set certainly as required, should be connected with lifting bolt 24 respectively on the outstanding position, this lifting bolt 24 is used for connecting rope, the top that rope is connected in main shaft 1 top drive or power swivel on, make when load cylindrical shell 12 during, rotate oil jacket 2 and can fix with respect to driving or power swivel maintains static on the top, thereby be the relation of being association of activity and inertia between load cylindrical shell 12 and the oil jacket 2 with main shaft 1 rotation.Certainly, can on the top of oil jacket 2 or lateral wall, a plurality of lifting bolts be set in order to guarantee the relative fixed of oil jacket 2.On the ordinate direction of oil jacket 2 topmost with bottom two rotatory sealings 25 or more with below, be respectively arranged with guidance tape 26, described guidance tape 26 is arranged in the guidance tape annular groove, above and the following dust ring 27 that also is provided with of guidance tape 26, nethermost dust ring 27 is arranged on the step inwall of rotation oil jacket 2 bottom interior wall, described dust ring 27 is arranged in the dust ring annular groove, described rotatory sealing 25, guidance tape 26, dust ring 27 is a loop configuration, internal diameter under its reset condition equates that with the cylindrical shell external diameter on load cylindrical shell 12 tops external diameter is with the rotatory sealing annular groove in the rotation oil jacket 2, the guidance tape annular groove, the dust ring annular groove is as the criterion.The oil duct junction in rotation oil jacket 2 outsides connects fueller, hydraulic oil enters in the annular oil groove from this oil duct junction, enter in the oil duct of load cylindrical shell 12 from annular oil groove again, by with the oil duct outlet connecting pipe road of its lower end, hydraulic oil is transferred in clamping device or the locking device, thereby has satisfied from of the requirement of static fueller to the fuel feeding of dynamic device.

Annular oil groove on the described rotation oil jacket 2 can be arranged on the load cylindrical shell 12 equally, as long as the fuel feeding that can keep between rotation oil jacket 2 and the load cylindrical shell 12 sealing concerns.

The first slips pedestal 10 and the second slips pedestal 5 are symmetrical structure, and between the two by 7 connections of shipping and reselling on another market, both close up formation one approximate column structure.First clamping device 3 and second clamping device 39 are same structure, first locking device 4 and second locking device 40 are same structure, the first slips pedestal 10 and the second slips pedestal 5 are symmetrical structure, so be that internal construction or external structure all are identical and mutual pairing, below with the first slips pedestal 10, the structure of second clamping device 39 and second locking device 40 is an example, and the second slips pedestal 5, first clamping device 3 are identical structure with 4 of first locking devices.The first slips pedestal 10 is the semicircular column construction, upper inside wall at the first slips pedestal 10 has an annular groove, this annular groove is corresponding with the convex edge of load cylindrical shell 12 lower ends, and can be connected mutually in conjunction with pairing, be advisable so that the first slips pedestal 10 can be positioned over not come off on the load cylindrical shell 12.One bearing torque hole is arranged at the top of the first slips pedestal 10, this bearing torque hole is corresponding with described bearing torque pin 11, when the first slips pedestal 10 and the second slips pedestal 5 close up, bearing torque pin 11 snaps onto in the hole of consigning, define the first slips pedestal 10 or the second slips pedestal 5 must meet in the rotation of load cylindrical shell 12, bearing torque pin 11 transmits the moment of torsion that load cylindrical shell 12 transmits to the slips pedestal, thereby drives the rotation of slips pedestal.The groove bottom of the first slips pedestal, 10 upper inside wall is connected with second clamping device 39, position at connection second clamping device 39 of the first slips pedestal 10, the i.e. first slips pedestal 10 tubular structure that is tightly connected, perhaps on the outstanding position of the first slips pedestal 10 of integral body, dig out a manhole, this tubular structure or through hole are vertical with the center line of the tubular construction that the first slips pedestal 10 and the second slips pedestal 5 merge, and promptly the center line of this tubular structure or through hole is parallel with horizontal plane.The inwall of this tubular structure or through hole must be smooth, with the cylinder wall as clamping cylinder.This tubular structure of the first slips pedestal 10 or through hole are the cylinder body of clamping cylinder 31.This tubular structure or through hole are provided with oil duct, be connected with control fuel tap door on the oil cylinder collar extension of this oil duct, the cylinder block inwall mouth place of this oil duct is set to clamping cylinder annular oil groove 32 around the cylinder block inwall, with these clamping cylinder annular oil groove 32 boundaries, clamping cylinder 31 bigger than one section the diameter to the inwall direction of the first slips pedestal 10 of clamping cylinder 31 walls to one section diameter of the shell direction of the first slips pedestal 10 is with the operational limit position of restriction clamping cylinder piston 28.The outside of this tubular structure or through hole is connected with oil cylinder cover 30 by bolt, and oil cylinder cover 30 is provided with an oil duct through hole, is connected with control fuel tap door on the oil duct through hole.Be provided with clamping cylinder piston 28 in the described cylinder block, described clamping cylinder piston 28 is former column construction, its equal diameters or be slightly less than the diameter of oil cylinder inner wall, and clamping cylinder piston 28 is based on oil cylinder, be horizontal arrangement, its length equates with oil cylinder inner wall.One end of the close oil cylinder cover 30 of clamping cylinder piston 28 is set to cavity structure.Clamping cylinder piston 28 external surfaces are provided with the clamping piston annular oil groove 33 around clamping cylinder piston 28, with this clamping piston annular oil groove 33 is boundary, one section clamping cylinder piston 28 external diameters of the close oil cylinder cover 30 of clamping cylinder piston 28 are greater than the external diameter away from one section clamping cylinder piston 28 of oil cylinder cover 30, the special construction of this clamping cylinder piston 28 cooperates the annular oil groove of oil cylinder inner wall, the range ability of restriction clamping cylinder piston 28.Be a space structures between the clamping cylinder annular oil groove 32 of the clamping piston annular oil groove 33 of described clamping cylinder piston 28 and clamping cylinder 31 inboard wall of cylinder block, this space structures and clamping piston annular oil groove 33, locking oil cylinder annular oil groove 32 are formed clamping oil back chamber 34, in order to control clamping cylinder piston 28 moving to the first slips pedestal, 10 outer wall directions.Clamping cylinder piston 28 is provided with piston seal 14, and described piston seal 14 is arranged at clamping oil back chamber 34 both sides of clamping piston annular oil groove 33.Whole clamping cylinder piston 28 is tightly connected with the inwall formation of clamping cylinder 31 cylinder bodies, and clamping cylinder piston 28 can be free to slide with respect to clamping cylinder 31 inwalls.Be connected with clamping pliers tooth base 9 by screw on one end of the nearly slips base vivo wall of described clamping cylinder piston 28, described clamping cylinder piston 28 is provided with a concave inward structure, clamp pliers tooth base 9 and be provided with a projection, make the concave inward structure of clamping cylinder piston 28 get protruding mutual corresponding and cooperation, make clamping cylinder piston 28 and clamping pliers tooth base 9 be fixed together with clamping pliers tooth base 9.Described clamping pliers tooth base 9 is similar square or rectangular structure, its place that is connected with clamping cylinder piston 28 is set to a projection, the place, working position of described clamping pliers tooth base 9 is set to the vertical fringe spacing of certain interval, and entire working surface forms the circular arc of an indent, pliers tooth base tooth or the screw thread or the striped of this special construction of the working position of clamping pliers tooth base 9, in order to clamp drilling rod and sleeve pipe, increase its friction and prevent that it from sliding, what other can certainly be arranged similarly is used for anti-skidding structure.The both sides of described clamping pliers tooth base 9 work planes are respectively arranged with the outstanding structure of rectangle, being somebody's turn to do the outstanding structure and the first slips pedestal 10 is slidingly connected in the rectangular channel 38, can in the rectangular channel 38 of the first slips pedestal 10, be free to slide and be as the criterion to clamp pliers tooth base 9, make that the work plane that clamps pliers tooth base 9 is similar "T"-shaped structure.This rectangular channel 38 makes clamping cylinder piston 28 come and go on horizon all the time and moves, thus protection cylinder block inwall and piston.Control fuel tap door on control oil cylinder cover 30, make hydraulic oil flow in the clamping cylinder from control fuel tap door, thereby make clamping cylinder piston 28 under the effect of hydraulic pressure, promote to clamp pliers tooth base 9 motions, the first slips pedestal 10 cooperates clamping drilling rod or sleeve pipe with clamping pliers tooth base 9 on the second slips pedestal 5; Control fuel tap door when control clamping cylinder 31 outsides, in making that hydraulic oil flow into clamping oil back chamber 34 between clamping cylinder piston 28 and the cylinder block inwall from control fuel tap door, because the sealing of piston seal 14, make clamping cylinder piston 28 toward the motion of oil cylinder cover 30 directions, hydraulic oil original in the clamping cylinder 31 is discharged, thereby driving clamping pliers tooth base 9 moves to the first slips pedestal, 10 outer wall directions, the clamping pliers tooth base 9 of the first slips pedestal 10 and the second slips pedestal 5 all moves, and has loosened the clamping to drilling rod or sleeve pipe.

The below of second clamping device 39 on the first slips pedestal 10 is provided with second locking device 40, described second locking device 40 can be arranged at second clamping device 39 under, also can be arranged on other angle of below of second clamping device 39, but the position of first clamping device 3 on second clamping device 39 on the first slips pedestal 10 and the second slips pedestal 5 must be corresponding, and the center line the when center line of described second locking device 40 closes up with the first slips pedestal 5 with the first slips pedestal 10 is vertical.Position at connection second locking device 40 of the first slips pedestal 10, the i.e. first slips pedestal 10 tubular structure that can be tightly connected, perhaps on the outstanding position of the first slips pedestal 10 of integral body, dig out a manhole, the center line of this tubular structure or through hole and the first slips pedestal 10 and tubular construction after the second slips pedestal 5 merges is vertical, and promptly the center line of this tubular structure or through hole is parallel with horizontal plane.The inwall of this tubular structure or through hole must be smooth, and with the inwall as second locking device, this tubular structure of the first slips pedestal 10 or throughhole portions are the cylinder body of locking cylinder.Be sealedly connected with locking cylinder cylindrical shell 16 on described tubular structure or the through hole, forming sealing by O type circle 21 between them connects, and the junction of locking cylinder cylinder body and locking cylinder cylindrical shell 16 is provided with the bayonet type structure, makes that the sealing performance between locking cylinder cylinder body and the locking cylinder cylindrical shell 16 is better.The diameter of the inboard wall of cylinder block of described locking cylinder gets inner diameter greater than locking cylinder cylindrical shell 16, the just like changeover portion of pyramidal structure is arranged on the locking cylinder cylindrical shell 16 between two size diameter, the inside diameter of this changeover portion is greater than the diameter of the inwall of locking cylinder cylinder body, but get inner diameter less than locking cylinder cylindrical shell 16, and its diameter is increasing on the first slips pedestal, 10 inwall directions gradually, forms hypotenuse structure as shown in Figure 3.This hypotenuse cooperates with the hypotenuse of the locking cylinder cylindrical shell 16 of locking cone tight 17, is connected with rear end cap 19 by bolt seal on the other end of described locking cylinder cylindrical shell 16, seals by the O type circle 21 that is installed on the locking cylinder cylindrical shell 16 between them.The locking cylinder cylinder body of described second locking device 40 is provided with oil supply pipe, the entrance of oil supply pipe is connected with control fuel tap door, this oil supply pipe must export, and promptly the oil duct exit of locking cylinder inboard wall of cylinder block is set to annular oil-feed tank 22 around the locking cylinder inboard wall of cylinder block.Be provided with localization handspike 13 in described second locking device 40, be set with locking cylinder piston 15 and conical surface piston 18 on the described localization handspike 13, this localization handspike 13 comprises 13b of push rod portion and push rod head 13a, described push rod head 13a is a cylindrical structural, this push rod head 13a can be free movable with respect to the locking cylinder inboard wall of cylinder block, and push rod head 13a is provided with piston seal 14, makes to seal between push rod head 13a and the locking cylinder inboard wall of cylinder block.The 13b of push rod portion is a cylinder clavate, is socketed with conical surface piston 18 and locking cylinder piston 15 respectively on the described push rod 13b of portion, and conical surface piston 18 is provided with piston seal 14 with the 13b of push rod portion linkage section, and the inside of described conical surface piston 18 is through hole.The diameter of through hole cooperates the formation hermetically-sealed construction with the diameter of the 13b of push rod portion, this piston seal 14 is arranged on the through-hole wall of conical surface piston 18, equally also can be arranged on the push rod head 13a.Be provided with oil duct cavity 35 in the described locking cylinder piston 15, the profile of described conical surface piston 18 is to be similar to the structure that the circular cone body combines with the round platform body, the diameter of the low side of its circular cone body should prevent that conical surface piston 18 integral body from entering in the oil duct cavity 35 of locking oil cylinder piston 15 greater than the diameter of 35 mouthfuls of the oil duct cavitys of locking cylinder piston 15.The diameter of round platform body is decided according to the concrete shape of locking cone tight 17, but the external diameter of round platform body must can freely be put in the locking cylinder piston 15 to guarantee round platform portion less than the diameter of oil duct cavity 35 inwalls of locking oil cylinder piston 15.The side of the oil duct cavity 35 of described locking cylinder piston 15 is provided with several through holes, and it is tight 17 to be used to place locking cone in this through hole, makes that locking cone tight 17 can be free movable in through hole, and this through hole is according to the size design of locking cone tight 17.Described locking cone tight 17 is a wedge, and the face that contacts of this wedge and conical surface piston 18 is fitted, and with the corresponding cooperation of cone angle of the cone platform of conical surface piston 18, make between locking cone tight 17 and the conical surface piston 18 contact tightr.The tapering of the face that described locking cone tight 17 contacts with locking cylinder cylindrical shell 16 inwalls, the corresponding cooperation of angle of taper with locking cylinder cylindrical shell 16 inwall changeover portions, make to contact more closely between locking cone tight 17 and the locking cylinder cylindrical shell 16 that and locking cone tight 17 places in the locating hole and is socketed on described locking cylinder cylindrical shell 16 inwalls.Certainly, can adopt inclined-plane equally, make locking cone tight 17 cooperate for the identical inclined-plane of function with conical surface piston 18 with identical function.Round platform body and circular cone body junction are the place of whole conical surface piston 18 external diameter minimums, and this junction just combines with the big end of wedge shape block structured of locking cone tight 17 can get the free activity of inwall at locking cylinder cylindrical shell 16.Also be socketed with locking cylinder piston 15 between the described push rod 13b of the portion socket conical surface piston 18, described locking cylinder piston 15 is placed horizontally in the locking cylinder cylinder body, its external surface is provided with piston seal 14, makes to be tightly connected between locking cylinder piston 15 and the locking cylinder inboard wall of cylinder block and can be free movable.Described locking cylinder piston 15 socket push rod 13b of portion and fit with the push rod head 13a of localization handspike, and at the diameter of the external surface of the nearly push rod head 13a of locking cylinder piston 15 less than the diameter that is provided with piston seal 14 positions, the diameter at the position of the nearly locking cylinder piston 15 of described push rod head 13a is less than the diameter away from the position of locking cylinder piston 15 of push rod head 13a, make to form certain space between the position of nearly locking cylinder piston 15 of the external surface of nearly push rod head 13a of locking cylinder piston 15 and push rod head 13a, this space is the part of oil back chamber 36.The inboard wall of cylinder block of locking cylinder is provided with annular oil-feed tank 22, the push rod head 13a of locking device inwall and space and the annular oil-feed tank 22 between push rod portion 13b junction, localization handspike 13 and the locking cylinder piston 15 consist of oil back chamber 36, described annular oil-feed tank 22 is all the time in oil back chamber 36.The push rod head 13a of the both sides of described oil back chamber 36 is connected with the locking cylinder inner wall sealing respectively with locking cylinder piston 15.Described push rod head 13a and push rod portion 13b junction are provided with the cavity structure of an indent, and making has certain space when the place that localization handspike 13 contacts with locking cylinder piston 15.Described locking cylinder piston 15 is provided with through hole, its diameter is corresponding with the 13b of push rod portion, make the locking cylinder piston 15 suit push rod 13b of portion, and can be free relatively movable, the external diameter of the diameter of the oil duct cavity 35 of described locking cylinder piston 15 and the round platform body of conical surface piston 18 is corresponding, so that conical surface piston 18 can be free movable with respect to oil duct cavity 35 inwalls, and the round platform body side of conical surface piston 18 is provided with piston seal 14, makes relative being tightly connected between conical surface piston 18 and oil duct cavity 35 inwalls.Also be provided with release oil duct 20 on the described locking cylinder piston 15, unimpeded with the oil duct cavity 35 and the supply of the hydraulic oil between the oil back chamber 36 that guarantee locking cylinder piston 15, be convenient to release.Described locking cylinder cylindrical shell 16 walls are provided with oil hole, and the fuel feeding entrance of described oil hole is provided with control fuel tap door.

The push rod head 13a of described localization handspike 13 goes up and to be connected with pipe elevator 8 by screw, and push rod head 13a connects pipe elevator 8 places and is provided with a concave inward structure, and this concave inward structure is protruding corresponding with pipe elevator 8, makes the closer of both combinations.The work plane of described pipe elevator 8 is the arc-shaped structure of indent, be furnished with a boss according to this circular arc line in this arc-shaped structure, the place, working position of this boss is set to the circular arc of indent, this circular arc and the corresponding and consistent arc-shaped structure of the diameter of drilling rod or pipe are used to block drilling rod or pipe.The left and right sides of the work plane of described pipe elevator 8 is the outstanding structure of rectangular configuration, and this outstanding structure places in the rectangular channel 38 of the first slips pedestal 10, makes pipe elevator 8 to be free to slide with respect to the rectangular channel 38 of the first slips pedestal 10.Rectangular channel 38 horizontal arrangement make back and forth movement on pipe elevator 8 horizontal direction all the time, thus protection lock locking oil cylinder inboard wall of cylinder block and latching ram, and pipe elevator 8 is stuck in the rectangular channel, and the colluding of apparatus transmission that can also bear the pipe connector lower end carried.According to clamping the structure of pliers tooth base 9, be provided with corresponding rectangular channel 38 in the described first slips pedestal 10, make that clamping pliers tooth base 9 all can be free to slide with pipe elevator 8 in rectangular channel 38 separately with pipe elevator 8.The described first slips pedestal 10 is a semi-cylindrical in configuration, its inside is hollow structure, make things convenient for the installation of pipe or drilling rod, clamping pliers tooth base 9 and pipe elevator 8 etc., the described first slips pedestal 10 is provided with the platform of shipping and reselling on another market with the limit that the second slips pedestal 5 combines, the platform of shipping and reselling on another market is provided with the hole of shipping and reselling on another market, be used for placing and ship and resell on another market 7, the second slips pedestal correspondence position is provided with the platform of shipping and reselling on another market that cooperates with the first slips pedestal 10, the platform of shipping and reselling on another market is provided with the hole of shipping and reselling on another market, and 7 is connected by shipping and reselling on another market between the first slips pedestal 10 and the second slips pedestal 5.And the mutual corresponding matching of the platform of shipping and reselling on another market on the first slips pedestal 10 and the second slips pedestal 5.

In the time of needs locking pipe, control fuel tap door on the control lock locking oil cylinder piston barrel 16, make hydraulic oil enter in conical surface piston 18 cavity on every side, promoting locking cylinder piston 15 moves with conical surface piston 18, conical surface piston 18 promotes locking cone tight 17 and moves, because locking cone tight 17 is corresponding with the angle of locking cylinder cylindrical shell 16 inwalls contact, locking cone tight 17 is corresponding with the angle of conical surface piston 8 contacts, makes locking cone tight 17 be close to conical surface piston 18 and locking cylinder cylindrical shell 16 inwalls simultaneously.Localization handspike 13 moves thereby locking cylinder piston 15 moves promotion, and localization handspike 13 is inferred pipe elevator 8, and the pipe elevator 8 of win the slip spider body 10 and the second slips pedestal 5 is cooperatively interacted, the locking pipe.When the needs release, control fuel tap door on the control lock locking oil cylinder, hydraulic oil enters in the oil back chamber 36, promote locking cylinder piston 15 and move, hydraulic oil enters in the release oil duct 20 simultaneously, promotes conical surface piston 18 and moves, drain simultaneously hydraulic oil around the conical surface piston 18, pipe elevator 8 in the first slips pedestal 10 and the second slips pedestal 5 moves simultaneously, thereby removes the locking to pipe, can reach the purpose of release.

Be connected with guide cover 6 by bolt on the bottom of the described first slips pedestal 10, be convenient to packing into of pipe.In the time of needs jointed rod and/or pipe, only need be inserted into crucial connector inside along the inward flange of guide cover gets final product, when having avoided drilling rod and/or pipe to put into pipe connector, drilling rod and/or pipe are put on the bias, thereby the generation deviation that causes clamp operation and locking operation is for clamping or lock.Because the existence of guide cover can make accurately to put in place when drilling rod and/or pipe are put into.The described second slips pedestal 5 and the first slips pedestal 10 are symmetry equivalent, so promptly know the structure of the second slips pedestal 5 as mentioned above.Described first clamping device 3 and second clamping device 39 are same structure, can certainly be other similar structure, need only first clamping device 3 and second clamping device 39 on pliers tooth base 9 pairings, and it clamps the necessary forces device, can adopt other similar mechanism, can realize that clamping function is as the criterion.Described first locking device 4 and second locking device 40 are same structure, can certainly be other similar structure, need only first locking device 4 and second locking device 40 on 8 pairings of pipe elevator, and its locking necessary forces device, can adopt other similar mechanism, can realize that locking function is as the criterion.

Principle according to second clamping device 39, second locking device 40 also can adopt the structure of second clamping device 39, be that locking device can adopt the structure that oil cylinder is only arranged equally, suppose second locking device 40 structure as described in Figure 4, it comprises locking cylinder (being clamping cylinder 31), be connected with pipe elevator 8 on the locking cylinder piston of described locking cylinder (being clamping cylinder piston 28), pipe elevator 8 on the first slips pedestal 10 and the second slips pedestal 5 is worked simultaneously, realizes the purpose of locking pipe or drilling rod.As described in clamping device 3, between locking cylinder piston (being clamping cylinder piston 28) and locking cylinder (being clamping cylinder 31) inboard wall of cylinder block, be provided with oil back chamber equally, locking cylinder piston (being clamping cylinder piston 28) is provided with annular oil groove (being clamping piston annular oil groove 33 and clamping cylinder annular oil groove 32) with locking cylinder (being clamping cylinder 31) inboard wall of cylinder block, and described annular oil groove belongs to the part of described oil back chamber.Similarly according to the principle of second locking device 40, second clamping device 39 also can adopt the structure of second locking device 40.Aforesaid second clamping device 39 and second locking device 40, according to its principle, first clamping device 3 is identical with second clamping device, 39 structures, and certain first clamping device 3 also can be identical with second locking device, 40 structures; First locking device 4 is identical with second locking device, 40 structures, and certain first locking device 3 also can be identical with second clamping device, 39 structures.

Pipe connector of the present utility model, in use, water tap is connected at first driving with the top by main shaft 1 or moving, integral body is transferred then, press to the locking device feed flow by control, the slip spider body 10 of winning is cooperated with pipe elevator 8 in the second slips pedestal 5, locking drilling rod or sleeve pipe, thereby mention drilling rod or sleeve pipe, when needs link closely or spinner the time, only need control to press to the clamping device feed flow, thereby the slip spider body 10 of winning is cooperated drilling rod or sleeve pipe clamping with clamping pliers tooth base 9 in the second slips pedestal 5, because the relation of position longitudinally in the pipe connector between clamping device and the locking device and drilling rod or sleeve pipe junction is measure-alike, make clamping device can clamp the correspondence position of drilling rod or sleeve pipe, be provided with special pliers tooth base tooth or screw thread or striated structure owing to clamp pliers tooth base 9, make when whole pipe connector rotates, make to clamp combine between pliers tooth base 9 and drilling rod or the sleeve pipe more and more tightr, thereby provide moment of torsion to drilling rod or sleeve pipe, make between drilling rod or sleeve pipe and the pipe connector relative staticly, drilling rod or sleeve pipe rotate with pipe connector.When needs are transferred drilling rod or sleeve pipe, only need loosen clamping device to putting the clamping of drilling rod or sleeve pipe, descend caving to drive or power swivel and pipe connector again, block drilling rod or sleeve pipe, loosen locking device the locking of drilling rod or sleeve pipe is got final product by other device.Whole operation is very simple, and Stability Analysis of Structures, is adapted at the petroleum drilling and mining field and promotes.Pipe connector of the present utility model does not use other facility just can finish fast to mention and transfers drilling rod, and finish drilling rod on detain and link closely, can finish the pipe connector of casing job simultaneously.

The pipe connector of the utility model structure, when installing, at first will rotate oil jacket 2 parts inner with it is installed on the load cylindrical shell 12, again main shaft 1 is passed from load cylindrical shell 12 bottoms, and be fixed on load cylindrical shell 12 tops, second clamping device 39 and second locking device 40 in the first slips pedestal 10 are installed respectively again, parts in first clamping device 3 of the second slips pedestal 5 and first locking device 4, with being installed, the first slips pedestal 10 is connected with the convex edge of load cylindrical shell 12 with the second slips pedestal 5, and connect with the bearing torque finger setting, to ship and resell on another market again and put in the hole of shipping and reselling on another market, the first slips pedestal 10 and the second slips pedestal 5 are linked together, on the first slips pedestal 10 and the second slips pedestal, 5 bottoms guide cover 6 is installed respectively more at last, this pipe connector is promptly assembled and is finished.

Pipe connector of the present utility model, its inner pipe elevator 8 all can be changed with clamping pliers tooth base 9, so the connection of the pipe of its suitable different size.After choosing pipe elevator 8 and clamping pliers tooth base 9, pipe connector has been assembled and has been finished, can by steel wire cable select oil jacket 2 to be connected that the top is driven or power swivel on, the oil supply pipe between each oil-feed port is connected, can use this pipe connector.The utility model is simple in structure, easy to operate, can mention and transfer bull stick or sleeve pipe fast, do not use other facility just can finish fast to mention and transfer drilling rod, and finish drilling rod on detain and link closely, can finish casing job simultaneously.Being adapted at field of petroleum exploitation promotes.

Certain structural principle according to present embodiment, the slips pedestal can be designed to any is fixed on the convex edge of load cylindrical shell in the first slips pedestal 10 or the second slips pedestal 5, the mechanism that another then can freely rotate, the feasible inside of being convenient to check the slips pedestal, same principle is as long as can adopt similar structure can realize its basic function.

Principle according to first, second slips pedestal combination, can be designed to the structure that three slips pedestals close up to monolithic slips pedestal, so the slips pedestal that closes up can comprise that slips pedestal 1, slips pedestal 2 and 3, three slips pedestals of slips pedestal are identical structure by three slips pedestals.With slips pedestal 1 is the structure that example illustrates this slips pedestal, slips pedestal 1 outside be similar 1/3rd cylinders structure, its vertical view is the fan-shaped of 120 degree angles, slips pedestal 1 side is provided with clamping device and locking device, the aforesaid topology layout of clamping device and locking device, the upper inner of slips pedestal 1, be provided with the corresponding groove in convex edge with load cylindrical shell lower end, the top of slips pedestal 1 is provided with the consign hole corresponding with the bearing torque pin, is connected with guide cover 6 on the bottom of slips pedestal 1.The structure of slips pedestal 2 and slips pedestal 3 is identical with slips pedestal 1, and between three slips pedestals by the connection of shipping and reselling on another market, three slips pedestals combine the slips pedestal of formation with integral body.Its basic principle is with embodiment 1 described slip spider body structure.

As mentioned above, connector of the present utility model, its slips pedestal can also be designed to four slips pedestals and close up formation monolithic slips pedestal, are connected load cylindrical shell 12 lower ends, play identical functions.As long as can realize the slips pedestal of its function similarly, close up and all can no matter how many pieces it is designed to.

The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. pipe connector, comprise main shaft (1), it is characterized in that: be connected with load cylindrical shell (12) on the described main shaft (1), be set with rotation oil jacket (2) on the described load cylindrical shell (12), the lower end of described load cylindrical shell (12) is connected with the first slips pedestal (10), the lower end of described load cylindrical shell (12) is connected with the second slips pedestal (5), the described first slips pedestal (10) is provided with second clamping device (39) and second locking device (40), and the described second slips pedestal (5) is provided with first clamping device (3) and first locking device (4).

2. pipe connector as claimed in claim 1 is characterized in that: described first clamping device (3) or second clamping device (39) comprise clamping cylinder (31), are connected with pliers tooth base (9) on the clamping cylinder piston (28) of described clamping cylinder (31).

3. pipe connector as claimed in claim 2, it is characterized in that: be provided with between the inboard wall of cylinder block of described clamping cylinder (31) and the clamping cylinder piston (28) and clamp oil back chamber (34), described clamping oil back chamber (34) comprises the clamping cylinder annular oil groove (32) on the inboard wall of cylinder block that is arranged at clamping cylinder (31) and is arranged at the clamping piston annular oil groove (33) in clamping cylinder piston (28) outside.

4. pipe connector as claimed in claim 1, it is characterized in that: described first locking device (4) or second locking device (40) comprise locking cylinder cylindrical shell (16), be connected with back shroud (19) on the described locking cylinder cylindrical shell (16), the inside of described locking cylinder cylindrical shell (16) is provided with localization handspike (13), be set with locking cylinder piston (15) and conical surface piston (18) on the described localization handspike (13), be provided with oil duct cavity (35) in the described locking cylinder piston (15), the side of described oil duct cavity (35) is provided with locating hole, be provided with locking cone piece (17) in the described locating hole, the inclined-plane or the cone match of described locking cone piece (17) and conical surface piston (18), and be socketed on described locking cylinder cylindrical shell (16) inwall, be connected with pipe elevator (8) on the described localization handspike (13).

5. pipe connector as claimed in claim 4, it is characterized in that: be provided with oil back chamber (36) between the inwall of described first locking device (4) or second locking device (40), locking cylinder piston (15) and the localization handspike (13), described oil back chamber (36) comprises the annular oil-feed tank (22) on the inwall that is arranged at first locking device (4) or second locking device (40), and described locking cylinder piston (15) is provided with the release oil duct (20) that is communicated with oil duct cavity (35) and oil back chamber (36).

6. pipe connector as claimed in claim 1, it is characterized in that: the inwall of described rotation oil jacket (2) is provided with annular oil groove (37), the oil duct junction of the oil duct that described annular oil groove (37) is interior with being arranged at load cylindrical shell (12) is corresponding, and the top of described rotation oil jacket (2) is connected with lifting bolt (24).

7. as each described pipe connector in the claim 1 to 6, it is characterized in that: the described first slips pedestal (10) and the second slips pedestal (5) are connected on the convex edge of load cylindrical shell (12) lower end, and the first slips pedestal (10) and the second slips pedestal (5) are located by connecting by bearing torque pin (11) and load cylindrical shell (12).

8. as each described pipe connector in the claim 1 to 6, it is characterized in that: be provided with rectangular channel (38) on the inwall of the described first slips pedestal (10) and the second slips pedestal (5), it is interior and free movable with respect to rectangular channel (38) that described clamping pliers tooth base (9) and pipe elevator (8) are arranged at rectangular channel (38) respectively.

9. as each described pipe connector in the claim 1 to 6, it is characterized in that: the described first slips pedestal (10) is connected with guide cover (6), and the lower end of the described second slips pedestal (5) is connected with guide cover (6).