Automatic pipe flushing device is driven with top to dismouting
The utility model belongs to the technical field of oil drilling equipment, concretely relates to automatic flush pipe device is driven with top to dismouting.
The top drive drilling device is one of three technical achievements (a top drive drilling device, an AC/DC variable frequency electric drive system and an underground drill bit pressurization system) of modern drilling equipment. Since the top drive system (TDS top drive for short) developed by Varco company in the United states of 12 months in 1981, the top drive is gradually adopted by the oil drilling world of various countries all over the world. At present, a top drive washpipe device is mainly of a packing seal type and is used for connecting a static gooseneck pipe with a rotary central pipe.
The common top drive (or power faucet) pipe flushing device structure is difficult to realize the replacement operation of the pipe flushing device, and the pipe flushing device belongs to a quick-wear part, is complex in disassembly and assembly operation, high in labor intensity and difficult to replace, and has great difficulty and danger particularly during high-level operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an automatic flush pipe device is driven with top to dismouting has solved among the prior art that the flush pipe device dismouting operation is loaded down with trivial details, the difficult problem of changing of top drive.
The utility model discloses a technical scheme be, an automatic dismouting is with top drive washing pipe device, gooseneck pipe and upper cover including mutual fixed connection, the one end of gooseneck pipe extend to the inside of upper cover and with last gland threaded connection, it passes through connecting piece and lower gland fixed connection to go up the gland, lower gland threaded connection is in the center tube, be provided with the detachable on the connecting piece and block the piece, the upper cover internal surface is provided with the backstop board, backstop board restriction blocks the piece and rotates along the upper cover axial, it is connected with packing box and lower packing box to rotate respectively between upper gland and the lower gland, fixedly connected with washing pipe between hanging wall box and the lower packing box, the screw thread screw direction of upper gland, lower gland is unanimous, the face of deviating from that is connected with upper gland and lower gland on the connecting piece is provided with the recess, it passes through the recess joint on the connecting piece to block the board, the backstop board has threely at.
The utility model discloses a characteristics still lie in:
the connecting piece is of an integrated structure, one end of the connecting piece is fixedly connected with the lower gland through a bolt, and the other end of the connecting piece is fixedly connected with the upper gland through a buckle.
The connecting piece is of a split structure and is divided into an upper part and a lower part, and the upper part and the lower part are connected through threads to adjust the height of the connecting piece.
The stop piece is a stop lever with a clamping end at the end part.
The utility model has the advantages that: the connecting pieces are arranged on the upper gland and the lower gland, so that the lower gland can rotate together with the upper gland under the driving of the rotation of the central tube, at the moment, the central tube is continuously screwed with the lower gland under the action of the threads, the lower gland is driven to rotate under the rotation of the connecting pieces, and the lower gland is continuously screwed with the end part of the gooseneck under the action of the rotation torque, and finally, the effect of automatic screwing is achieved; meanwhile, when the pipe punching device needs to be disassembled, the blocking piece is installed on the connecting piece, the central pipe is reversely rotated at the moment, the central pipe can drive the lower pressing cover to rotate together, the connecting piece can rotate under the action of rotating torque, but the blocking piece on the connecting piece and the stop plate on the upper cover jointly act to transmit the reaction torque to the upper cover to cause the upper pressing cover and the lower pressing cover to stop rotating, and under the condition that only the central pipe reversely rotates, the upper pressing cover is separated from the gooseneck pipe, the central pipe is separated from the lower pressing cover, and finally the disassembling effect is achieved; the structure of the existing top drive (or power tap) pipe flushing device can be adapted, and the modification is not needed; simple structure and convenient operation.
FIG. 1 is a schematic structural view of a top drive pipe flushing device for automatic disassembly and assembly of the present invention;
FIG. 2 is a cross-sectional view taken along the line A-A in FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a schematic structural view of a connecting member of the top drive pipe flushing device for automatic disassembly and assembly of the present invention;
FIG. 5 is a schematic structural view of a blocking member of the top drive pipe flushing device for automatic disassembly and assembly of the present invention;
fig. 6 is a sectional view of the connecting member and the blocking member of the top drive flushing pipe device for automatic disassembly and assembly of the present invention.
In the figure, 1, a gooseneck, 2, an upper cover, 3, a central pipe, 4, an upper gland, 5, an upper packing box, 6, a washpipe, 7, a lower packing box, 8, a lower gland, 9, a connecting piece, 10, a stop plate, 11, a stop piece, 12, a groove and 13, a clamping end.
The present invention will be described in detail with reference to the accompanying drawings 1-6 and the detailed description thereof.
As shown in fig. 1-3, a top drive flushing pipe device for automatic disassembly and assembly comprises a gooseneck 1 and an upper cover 2 which are fixedly connected with each other, wherein one end of the gooseneck 1 extends into the upper cover 2 and is in threaded connection with an upper gland 4, the upper gland 4 is fixedly connected with a lower gland 8 through a connecting piece 9, the lower gland 8 is in threaded connection with a central pipe 3, a detachable blocking piece 11 is arranged on the connecting piece 9, a blocking plate 10 which is matched with the blocking piece 11 is arranged on the inner surface of the upper cover 2, an upper packing box 5 and a lower packing box 7 are respectively and rotatably connected between the upper gland 4 and the lower gland 8, a flushing pipe 6 is fixedly connected between the upper packing box 5 and the lower packing box 7, and the directions of threaded screw ports of the upper gland 4 and the lower gland 8 are consistent; the connecting piece 9 is of an integrated structure, one end of the connecting piece is fixedly connected with the lower gland 8 through a bolt, and the other end of the connecting piece is fixedly connected with the upper gland 4 through a buckle; the blocking piece 11 is a blocking rod with a clamping end 13 at the end; the threads of the upper gland 4 and the lower gland 8 are left-handed threads.
As shown in fig. 4, a groove 12 is provided on a surface of the connecting member 9 away from the upper gland 4 and the lower gland 8, so that the blocking member 11 can be clamped on the connecting member 9 through the groove 12;
as shown in fig. 5-6, the blocking member 11 is a stop rod with a clamping end 13 at an end thereof, and the blocking member 11 is clamped with the groove 12 of the connecting member 9 through the clamping end 13, so as to connect the connecting member 9 and the blocking member 11 to each other.
The utility model discloses a working process is: during the installation, at first, put into this assembly and disassembly tools from upper cover 2 reservation breach department, and with the rotatory round at least of left-handed screw between center tube 3 and the lower gland 8, connecting piece 9 is fixed with lower gland 8 with barrier plate 10, the pin is installed on connecting piece 9, the adjustment pin makes its one side of leaning on the backstop board 10 of upper cover 2, the top is driven (or power tap) and is driven 3 anti-clock rotations of center tube, screw up left-handed screw between center tube 3 and the lower gland 8, at this moment, go up gland 4 and gooseneck 1 and be not connected, can be along with connecting piece 9 is rotatory, the pin transmits the counter torque to upper cover 2. Then, the stop lever is removed, the upper gland 4 and the left-hand thread of the gooseneck 1 are rotated for at least one circle, the top drive (or the power tap) rotates in a counterclockwise manner, the central tube 3 drives the upper gland 4 to rotate in a counterclockwise manner through the lower gland 8 and the connecting piece 9, the left-hand thread between the upper gland 4 and the gooseneck 1 is screwed, and the thread tightening torque is required to be smaller than the left-hand thread tightening torque between the central tube 3 and the lower gland 8. Finally, the tool is removed (or not, if the connection element 9 is of a split structure with adjustable height, but the stop lever must be removed).
When the disassembly tool is disassembled, firstly, the disassembly tool is put into the upper cover 2 from the reserved gap, the connecting piece 9 and the lower pressing cover 8 are fixed through bolts, the top driver (or the power tap) rotates clockwise, the central pipe 3 drives the upper pressing cover 4 to rotate clockwise through the lower pressing cover 8 and the connecting piece 9, the left-hand thread between the upper pressing cover 4 and the gooseneck pipe 1 can be loosened (because the tightening torque of the thread is smaller than that of the left-hand thread between the central pipe 3 and the lower pressing cover 8), and the upper pressing cover 4 falls on the connecting piece 9. Then, install the pin on connecting piece 9, adjust the pin and make it lean on one side of the barrier plate 10 of upper cover 2, the top drive (or power tap) drives center tube 3 clockwise rotation, loosens the left-hand thread between center tube 3 and lower gland 8, at last, demolishs this assembly and disassembly tools.
The utility model is suitable for a dismouting of present common top drive (or power tap) washing pipe device drives (or power tap) power with the help of the top and realizes automatic dismouting, if the steerable moment of torsion of the supporting carousel of rig and rotational speed, perhaps supporting rotatory tap has the spinner device of steerable moment of torsion and rotational speed, then the utility model is also suitable for an automatic dismouting of rotatory tap washing pipe device.