CN118997670A - Special thread oil sleeve joint - Google Patents

Abstract

The invention relates to the technical field of oil sleeve joints, in particular to a special threaded oil sleeve joint which comprises two oil sleeves and a connecting mechanism arranged at opposite ends of the two oil sleeves, wherein the connecting mechanism comprises joint bodies, the two joint bodies are in threaded connection with the two oil sleeves during installation, the end connecting parts of the threaded joint bodies and the oil sleeve bodies are in airtight threaded connection joints, radial interference fit is formed between an inner conical surface and an outer conical surface of a thread, high-pressure gas leakage is prevented, the connecting effect between the two oil sleeves is improved due to the zigzag design of the thread shape, and the connecting position is more compact and stable; the two connecting pipes slide relatively on the joint body, the two fixing shells are further buckled on the two connecting pipes, the two fixing shells are quickly fixed by rotating the two fastening rings, the disassembly and the assembly are convenient, the stress is even, and leakage is avoided.

Description

Special thread oil sleeve joint

Technical Field

The invention relates to the technical field of oil sleeve joints, in particular to a special threaded oil sleeve joint.

Background

After the well is drilled and completed, the normal operation of the whole oil well after well completion is ensured, petroleum can be conveyed through an oil sleeve, the oil sleeve is spliced through a threaded joint in the assembly process, the oil sleeve joint is made of alloy steel, carbon steel, stainless steel and aluminum alloy materials, and the oil sleeve joint needs to be checked in size when being connected with the oil sleeve.

However, the existing threaded oil sleeve joint adopts a sectional structure, namely two connecting pipes slide between the two joints, the two connecting pipes are fixedly connected through flanges, the joints are in threaded connection with the oil sleeve during installation, a plurality of bolts are required to be installed in the circumferential direction at equal intervals during the connection of the two connecting pipes through the flanges, the bolts in the circumferential direction are required to be fastened repeatedly in an inclined diagonal mode for avoiding uneven stress, the operation is complicated, and petroleum leakage can be caused if the bolts in one angle are not screwed; the two connecting pipes are fixed only through the flange, no detachable supporting component is arranged between the flange and the ground, and the oil sleeve joint designed in a segmented way is easy to loosen at the connecting position of the connecting pipes to cause oil leakage due to the internal pressure and weight of the pipelines when petroleum is conveyed; the reinforcing component is not arranged between the same oil sleeve and the connecting pipe, so that the oil sleeve, the joint and the connecting pipe are easy to shake, the threads are damaged, and gap oil leakage is easy to occur; the connecting pipe and the joint cannot be disassembled, the sealing ring is difficult to replace after aging, and petroleum leakage can be caused.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a special threaded oil sleeve joint.

The technical scheme adopted for solving the technical problems is as follows: the special threaded oil sleeve joint comprises two oil sleeves and connecting mechanisms arranged at opposite ends of the two oil sleeves, wherein the connecting mechanisms comprise joint bodies, the joint bodies are in threaded connection with the oil sleeves, equidistant thread sections on the joint bodies are of trapezoid structures, fixing mechanisms are detachably connected to opposite ends of the two joint bodies, rotating mechanisms are arranged on the two fixing mechanisms, supporting mechanisms are arranged between the two rotating mechanisms, and reinforcing mechanisms are arranged between the two connecting mechanisms and the two oil sleeves; the fixed establishment includes two connecting pipes, two the cover groove has all been seted up to the opposite ends of connecting pipe, two the connecting pipe passes through the cover groove cover and locates on two joint body, two the spread groove has all been seted up to the opposite side of connecting pipe, two it is sealed to hold the second between the spread groove, two relative lock is connected with two shells on the connecting pipe, two the draw-in groove has all been seted up to the inner wall of shells, the surface lock of draw-in groove and shell, two equal fixedly connected with in tip border department of shell is contradicted and is enclosed, two equal threaded connection has the retainer plate on the connecting pipe, the retainer plate is contradicted with the conflict circle.

Specifically, the connecting mechanism further comprises a fixing groove, the two connector bodies are provided with fixing grooves, and the end parts of the connecting pipes are sleeved in the fixing grooves.

Specifically, coupling mechanism still includes mounting groove and first sealed pad, two all seted up the mounting groove on the joint body, two all be equipped with first sealed pad on the mounting groove, first sealed pad centre gripping is between connecting pipe and joint body.

Specifically, the slewing mechanism includes the fixed column, two equal circumference equidistance fixedly connected with a plurality of fixed columns on the fastening ring, two sets of equal fixedly connected with steering wheel on the fixed column.

Specifically, the supporting mechanism comprises jacks, the bottoms of the steering wheel are provided with jacks, the interiors of the jacks are respectively inserted with a inserted link, the bottoms of the inserted links are fixedly connected with connecting plates, and the bottoms of the connecting plates are fixedly connected with threaded rods relatively.

Specifically, supporting mechanism still includes the conflict board, two equal fixedly connected with cross-section, side are the conflict board of arc structure on the inserted bar, conflict board is contradicted with the steering wheel.

Specifically, supporting mechanism still includes sill bar and bottom plate, two the equal threaded connection in bottom of threaded rod has the sill bar, two the bottom rotation of sill bar is connected with the bottom plate.

Specifically, strengthening mechanism includes two sets of rotating seat, two opposite ends fixedly connected with of connecting pipe a plurality of rotating seat, two sets of all rotate on the rotating seat and be connected with the ejector pin, two the equal threaded connection in bottom of ejector pin has the double-screw bolt, two sets of the equal fixedly connected with dwang in bottom of double-screw bolt, two sets of the equal fixedly connected with conflict pole in bottom of dwang, two the conflict hole has all been seted up to oil jacket pipe's opposite end, the inside in conflict hole is inserted to the conflict pole.

Specifically, the rotating seat, the ejector rod, the stud, the rotating rod, the contact supporting rod and the contact supporting hole are all circumferentially arrayed in a plurality of ways, and the rotating rod is of a hexagonal prism structure.

Specifically, the side slope of conflict circle sets up, the cross-section is the arc structure, just the tight circle is parallel arrangement with the relative face of conflict circle.

The beneficial effects of the invention are as follows:

(1) According to the special threaded oil sleeve joint, the two joint bodies are connected through the fixing mechanism, the two joint bodies are connected with the two oil sleeves in a threaded mode during installation, the joint body is connected with the end portion of the oil sleeve through the air-tight threaded connection joint, the inner conical surface and the outer conical surface of the threads form radial interference fit, high-pressure gas leakage is prevented, the threaded shape is of a zigzag design, the connecting effect between the two joint bodies is improved, and the connecting position is more compact and stable; the two connecting pipes slide relatively on the joint body, the two fixing shells are further buckled on the two connecting pipes, the two fixing shells are quickly fixed by rotating the two fastening rings, the disassembly and the assembly are convenient, the stress is even, and leakage is avoided.

(2) According to the special threaded oil sleeve joint, the rotating mechanisms are arranged on the two connecting pipes, so that the connecting pipes can be rotated conveniently, the labor is saved, the rotating mechanisms can be matched with the supporting mechanisms at the bottoms of the rotating mechanisms to support the connecting pipes, oil leakage caused by bending force between the connecting pipes and the joint body due to overlarge oil pressure change in the pipeline is avoided, the whole supporting mechanisms can be detached due to the matching of the inserted rod and the insertion hole, the connecting pipes are convenient to install, the supporting mechanisms can be adjusted in height, and the connecting pipes can be supported in different environments.

(3) According to the special threaded oil sleeve joint, the reinforcing mechanism is arranged between the connecting pipe and the oil sleeve, after the connecting pipe, the joint body and the oil sleeve are connected, the contact resisting rod can be corresponding to the contact resisting hole, the rotating rod is rotated to insert the contact resisting rod into the contact resisting hole at the end part of the oil sleeve, the connecting pipe is reinforced again by the whole reinforcing mechanism, the connection is firmer, the sealing performance is better, and the reinforcing mechanism arranged in the circumferential direction can enable the oil sleeve, the joint body and the connecting pipe to be more compact, and the axial stability is improved.

Drawings

The invention will be further described with reference to the drawings and examples.

FIG. 1 is a schematic view of the overall structure provided by the present invention;

FIG. 2 is a schematic diagram of the connection structure of the oil casing, the joint body and the connecting pipe according to the present invention;

FIG. 3 is a schematic view of the connection structure of the connector body, oil jacket and jack of the present invention;

FIG. 4 is a schematic view of the connection structure of the connecting pipe and the fastening ring according to the present invention;

FIG. 5 is a schematic view showing the connection structure of the fastening ring, the interference ring and the fixing post according to the present invention;

FIG. 6 is a schematic view of the connection structure of the fastening ring, the fixing column and the rudder disc of the present invention;

FIG. 7 is a schematic diagram of a connection structure between a fastening ring and a clamping groove according to the present invention;

FIG. 8 is a schematic view of the connection structure of the rotary base, the push rod and the screw;

FIG. 9 is a schematic view of a connection structure between a contact rod and a contact hole according to the present invention;

FIG. 10 is a schematic view of the connection structure of the insert rod, the interference plate and the connection plate according to the present invention;

FIG. 11 is a schematic view of the connection structure of the bottom plate, bottom bar and threaded bar of the present invention.

In the figure: 1. an oil casing; 2. a connecting mechanism; 201. a joint body; 202. a first gasket; 203. a mounting groove; 204. a fixing groove; 3. a fixing mechanism; 301. a connecting pipe; 302. a second gasket; 303. a fixed case; 304. a contact ring; 305. a fastening ring; 306. a sleeve groove; 307. a connecting groove; 308. a clamping groove; 4. a rotating mechanism; 401. fixing the column; 402. steering wheel; 5. a support mechanism; 501. a bottom plate; 502. a bottom bar; 503. a jack; 504. a threaded rod; 505. a connecting plate; 506. a rod; 507. a contact plate; 6. a reinforcement mechanism; 601. a rotating seat; 602. a push rod; 603. a contact hole; 604. a stud; 605. a rotating lever; 606. the contact rod.

Detailed Description

The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.

As shown in fig. 1-11, the special threaded oil sleeve joint of the invention comprises two oil sleeve pipes 1 and a connecting mechanism 2 arranged at opposite ends of the two oil sleeve pipes 1, wherein the connecting mechanism 2 comprises a joint body 201, the joint body 201 is in threaded connection with the oil sleeve pipes 1, equidistant thread sections on the joint body 201 are in trapezoid structures, the opposite ends of the two joint bodies 201 are detachably connected with a fixing mechanism 3, the two fixing mechanisms 3 are provided with rotating mechanisms 4, a supporting mechanism 5 is arranged between the two rotating mechanisms 4, and a reinforcing mechanism 6 is arranged between the two connecting mechanisms 2 and the two oil sleeve pipes 1; the fixing mechanism 3 comprises two connecting pipes 301, sleeve grooves 306 are respectively formed at opposite ends of the two connecting pipes 301, the two connecting pipes 301 are sleeved on the two joint bodies 201 through the sleeve grooves 306, connecting grooves 307 are respectively formed at opposite sides of the two connecting pipes 301, a second sealing gasket 302 is clamped between the two connecting grooves 307, two fixing shells 303 are oppositely buckled and connected on the two connecting pipes 301, clamping grooves 308 are respectively formed in inner walls of the two fixing shells 303, the clamping grooves 308 are buckled with surfaces of the fixing shells 303, abutting rings 304 are fixedly connected at end edges of the two fixing shells 303, a fastening ring 305 is in threaded connection with both connecting pipes 301, and the fastening ring 305 is in interference with an interference ring 304; The connecting mechanism 2 further comprises a fixing groove 204, the two joint bodies 201 are provided with fixing grooves 204, and the end parts of the connecting pipes 301 are sleeved in the fixing grooves 204; the connecting mechanism 2 further comprises a mounting groove 203 and a first sealing gasket 202, the two connector bodies 201 are provided with the mounting groove 203, the two mounting grooves 203 are provided with the first sealing gasket 202, and the first sealing gasket 202 is clamped between the connecting pipe 301 and the connector bodies 201; when two oil casings 1 are connected, two oil casings 1 are close, a certain distance is reserved between the two oil casings 1 and are used for installing a joint body 201 and a connecting pipe 301, during installation, the two joint bodies 201 are in threaded connection with the two oil casings 1, the end connection part of the joint body 201 and the oil casing 1 adopts an airtight threaded connection joint, the threaded inner conical surface and the external conical surface form radial interference fit, high-pressure gas leakage is prevented, the threaded shape is of a zigzag design, the connecting effect between the two oil casings 1 is improved, the connecting position is more compact and stable, the two connecting pipes 301 are relatively moved, the opposite ends of the connecting pipes 301 are respectively inserted into the fixing grooves 204 in the two joint bodies 201, The first sealing gasket 202 between the two joint bodies 201 and the connecting pipe 301 can avoid oil leakage, the connecting pipe 301 can be replaced by sliding out from the joint body 1 when the first sealing gasket 202 needs to be replaced, the butt joint of the two connecting pipes 301 is realized after the opposite ends of the connecting pipe 301 are in conflict, the two fixing shells 303 are buckled to the opposite ends of the two connecting pipes 301 through the clamping grooves 308, the preliminary positioning of the two connecting pipes 301 is realized, the second sealing gasket 302 is clamped between the two connecting pipes 301 to avoid oil leakage, the two fastening rings 305 are further rotated to realize the extrusion and the fixation of the conflict rings 304 on the two fixing shells 303 by the two fastening rings 305, The fixing of the connecting pipe 301, the joint body 201 and the oil sleeve 1 is completed, the two connecting pipes 301 are connected without flanges, and the connecting pipe is fast and convenient to assemble and disassemble.

Specifically, as shown in fig. 2, 4,5, 6, 10 and 11, the rotation mechanism 4 includes a fixed column 401, a plurality of fixed columns 401 are fixedly connected to two fastening rings 305 at equal intervals on the circumference, and rudder discs 402 are fixedly connected to two groups of fixed columns 401; the supporting mechanism 5 comprises jacks 503, jacks 503 are formed in the bottoms of the two rudder discs 402, inserting rods 506 are inserted into the jacks 503, connecting plates 505 are fixedly connected to the bottoms of the inserting rods 506, and threaded rods 504 are fixedly connected to the bottoms of the connecting plates 505 relatively; the supporting mechanism 5 further comprises a supporting plate 507, the two inserting rods 506 are fixedly connected with the supporting plate 507 with a cross section and an arc-shaped side surface, and the supporting plate 507 is in supporting contact with the rudder disc 402; the supporting mechanism 5 further comprises a bottom rod 502 and a bottom plate 501, the bottoms of the two threaded rods 504 are respectively connected with the bottom rod 502 in a threaded manner, and the bottoms of the two bottom rods 502 are rotatably connected with the bottom plate 501; can rotate the steering wheel 402 on the fixed column 401 when dismouting connecting pipe 301 changes first sealed pad 202 and second sealed pad 302, more laborsaving, and accomplish the fixed back with connecting pipe 301, can insert two inserted bars 506 to the inside of the jack 503 of two steering wheel 402 bottoms, be close to bottom plate 501 and ground, can adjust the extension length of threaded rod 504 according to the distance between bottom plate 501 and the ground, rotate the sill bar 502 and realize that threaded rod 504 stretches out or contracts when adjusting, until bottom plate 501 and ground conflict, realized spacing to the circumference of steering wheel 402, avoid its rotation, on the other hand realize supporting two connecting pipes 301 again, avoid taking place to bend and cause the oil leak, the interference board 507 has increased the area of support to steering wheel 402, promote the supporting effect, and the detachable connection of inserted bar 506 and jack 503, the rotation of steering wheel 402 of being convenient for, do benefit to the dismouting of connecting pipe 301.

Specifically, as shown in fig. 2, 3, 8 and 9, the reinforcing mechanism 6 includes two sets of rotating seats 601, opposite ends of the two connecting pipes 301 are fixedly connected with a plurality of rotating seats 601, two sets of rotating seats 601 are all rotationally connected with a push rod 602, bottoms of the two sets of push rods 602 are all in threaded connection with studs 604, bottoms of the two sets of studs 604 are all fixedly connected with rotating rods 605, bottoms of the two sets of rotating rods 605 are all fixedly connected with abutting rods 606, abutting holes 603 are formed at opposite ends of the two oil jackets 1, and the abutting rods 606 are inserted into the abutting holes 603; the rotating seat 601, the ejector rod 602, the stud 604, the rotating rod 605, the contact rod 606 and the contact hole 603 are all circumferentially arrayed in a plurality, and the rotating rod 605 is in a hexagonal prism structure; the side surface of the abutting ring 304 is obliquely arranged, the section of the abutting ring is in an arc-shaped structure, and the fastening ring 305 is arranged in parallel with the opposite surface of the abutting ring 304; when the joint body 201 and the connecting pipe 301 are installed, two groups of contact supporting rods 606 arranged in a circumferential array can be rotated to correspond to the contact holes 603 on the oil sleeve 1, a plurality of rotating rods 605 can be rotated in a further diagonal mode, the rotating rods 605 can be matched with an open spanner to rotate, the disassembly and the assembly are convenient, the threaded connection between the ejector rods 602 and the threaded studs 604 is achieved, the threaded studs 604 extend out of the ejector rods 602 when the rotating rods 605 rotate until the end parts of the contact supporting rods 606 are in contact with the inner wall of the oil sleeve 1, the horizontal supporting force among the connecting pipe 301, the joint body 201 and the oil sleeve 1 is increased, and the situation that oil leakage is caused by gaps at joints of the connecting rods and the rotating rods 605 due to bending force caused by oil pressure change inside a pipeline is avoided.

When the oil sleeve 1 is used, firstly, when the two oil sleeves 1 are connected, the two oil sleeves 1 are close to each other, a certain distance is reserved between the two oil sleeves 1 and used for installing the joint body 201 and the connecting pipe 301, when the two oil sleeves 1 are installed, the two joint bodies 201 are in threaded connection with the two oil sleeves 1, the end connecting parts of the joint bodies 201 and the oil sleeves 1 are in airtight threaded connection with the joint, the threaded inner conical surfaces and the outer conical surfaces form radial interference fit, high-pressure gas leakage is prevented, the threaded shape is zigzag, the connecting effect between the two connecting pipes is improved, the connecting parts are more compact and stable, the two connecting pipes 301 are relatively moved, opposite ends of the connecting pipes 301 are respectively inserted into the fixing grooves 204 in the two joint bodies 201, petroleum leakage can be avoided by the first sealing gaskets 202 between the two joint bodies 201 and the connecting pipes 301, the connecting pipes 301 can be replaced by sliding out from the joint body 1, when the opposite ends of the connecting pipes 301 are in conflict, the butt joint of the two connecting pipes 301 is realized, the two fixing shells 303 are buckled to the opposite ends of the two connecting pipes 301 through the clamping grooves 304, the two fixing rings 302 are further fastened, the two connecting pipes 301 are further fastened and the two connecting pipes 301 are not required to be fastened, the two connecting pipes 301 are further fastened, and the two connecting pipes 301 are fastened and the two connecting pipes 301 are not required to be fastened, and the two connecting pipes 301 are further fastened, and the two connecting pipes 301 are fastened and the connecting pipes 301 are fastened and are easy to be fastened and are fastened and the connecting pipes 301 are easy to be fastened and easy to be fastened;

Then, the rudder disk 402 on the fixing column 401 can be rotated when the connecting pipe 301 is disassembled and assembled to replace the first sealing gasket 202 and the second sealing gasket 302, so that the labor is saved, after the connecting pipe 301 is fixed, two inserting rods 506 can be inserted into the jacks 503 at the bottoms of the two rudder disk 402, the bottom plate 501 is close to the ground, the extension length of the threaded rod 504 can be adjusted according to the distance between the bottom plate 501 and the ground, the bottom rod 502 is rotated to realize extension or contraction of the threaded rod 504 during adjustment until the bottom plate 501 is in contact with the ground, the circumference limit of the rudder disk 402 is realized, the rotation of the steering disk 402 is avoided, on the other hand, the two connecting pipes 301 are supported, the oil leakage caused by bending is avoided, the supporting area of the rudder disk 402 is increased by the abutting plates 507, the supporting effect is improved, the inserting rods 506 are detachably connected with the jacks 503, the rotation of the rudder disk 402 is facilitated, and the disassembly and assembly of the connecting pipe 301 are facilitated;

Finally, after the installation of the joint body 201 and the connecting pipe 301 is completed, the two sets of contact supporting rods 606 arranged in a circumferential array can be rotated to correspond to the abutting holes 603 on the oil sleeve 1, the rotating rods 605 can be rotated in a further diagonal mode, the rotating rods 605 can be matched with an open spanner to rotate, the disassembly and the assembly are convenient, the threaded connection between the ejector rods 602 and the threaded studs 604 is realized, the threaded studs 604 extend out of the ejector rods 602 when the rotating rods 605 rotate until the end parts of the contact supporting rods 606 abut against the inner wall of the oil sleeve 1, the horizontal supporting force among the connecting pipe 301, the joint body 201 and the oil sleeve 1 is increased, and the situation that oil leakage is caused by gaps at joints of the connecting rods, the connecting rods and the oil sleeve 1 due to bending force formed by oil pressure change inside a pipeline is avoided.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (10)

1. The special threaded oil sleeve joint is characterized by comprising two oil sleeves (1) and connecting mechanisms (2) arranged at opposite ends of the two oil sleeves (1), wherein each connecting mechanism (2) comprises a joint body (201), the joint bodies (201) are in threaded connection with the oil sleeves (1), equidistant thread sections on the joint bodies (201) are of trapezoid structures, the opposite ends of the two joint bodies (201) are detachably connected with fixing mechanisms (3), rotating mechanisms (4) are arranged on the two fixing mechanisms (3), supporting mechanisms (5) are arranged between the two rotating mechanisms (4), and reinforcing mechanisms (6) are arranged between the two connecting mechanisms (2) and the two oil sleeves (1);

The fixing mechanism (3) comprises two connecting pipes (301), sleeve grooves (306) are formed in opposite ends of the two connecting pipes (301), the two connecting pipes (301) are sleeved on two joint bodies (201) through the sleeve grooves (306), connecting grooves (307) are formed in opposite sides of the two connecting pipes (301), a second sealing gasket (302) is clamped between the connecting grooves (307), two fixing shells (303) are connected to the two connecting pipes (301) in a relatively buckled mode, clamping grooves (308) are formed in inner walls of the two fixing shells (303), the clamping grooves (308) are buckled with surfaces of the fixing shells (303), abutting rings (304) are fixedly connected to end edges of the two fixing shells (303), fastening rings (305) are connected to the two connecting pipes (301) in a threaded mode, and the fastening rings (305) abut against the abutting rings (304).

2. A special threaded oil sleeve joint according to claim 1, wherein: the connecting mechanism (2) further comprises fixing grooves (204), the two connector bodies (201) are provided with the fixing grooves (204), and the end parts of the connecting pipes (301) are sleeved in the fixing grooves (204).

3. A special threaded oil sleeve joint according to claim 2, wherein: coupling mechanism (2) still include mounting groove (203) and first sealed pad (202), two all offer mounting groove (203) on joint body (201), two all be equipped with first sealed pad (202) on mounting groove (203), first sealed pad (202) centre gripping is between connecting pipe (301) and joint body (201).

4. A special threaded oil sleeve joint according to claim 1, wherein: the rotating mechanism (4) comprises fixing columns (401), a plurality of fixing columns (401) are fixedly connected to the fastening rings (305) at equal intervals in circumference, and rudder discs (402) are fixedly connected to the fixing columns (401).

5. A special threaded oil sleeve joint according to claim 4, wherein: the supporting mechanism (5) comprises jacks (503), the bottoms of the steering wheels (402) are provided with jacks (503), inserting rods (506) are inserted into the jacks (503), connecting plates (505) are fixedly connected to the bottoms of the inserting rods (506), and threaded rods (504) are fixedly connected to the bottoms of the connecting plates (505) relatively.

6. A special threaded oil bushing joint according to claim 5, wherein: the supporting mechanism (5) further comprises a supporting plate (507), the two supporting plates (507) with arc-shaped cross sections and side surfaces are fixedly connected to the inserting rods (506), and the supporting plates (507) are in supporting connection with the rudder disc (402).

7. A special threaded oil bushing joint according to claim 5, wherein: the supporting mechanism (5) further comprises a bottom rod (502) and a bottom plate (501), the bottoms of the two threaded rods (504) are connected with the bottom rod (502) in a threaded mode, and the bottoms of the two bottom rods (502) are connected with the bottom plate (501) in a rotating mode.

8. A special threaded oil sleeve joint according to claim 1, wherein: reinforcing mechanism (6) are including two sets of rotating seat (601), two opposite ends fixedly connected with of connecting pipe (301) a plurality of rotating seat (601), two sets of all rotate on rotating seat (601) and be connected with ejector pin (602), two equal threaded connection in bottom of ejector pin (602) has double-screw bolt (604), two sets of equal fixedly connected with dwang (605) in bottom of double-screw bolt (604), two sets of equal fixedly connected with conflict pole (606) in bottom of dwang (605), two conflict hole (603) have all been seted up to the opposite end of oil jacket pipe (1), the inside in conflict hole (603) is inserted to conflict pole (606).

9. A special threaded oil bushing joint according to claim 8, wherein: the rotary seat (601), the ejector rod (602), the stud (604), the rotary rod (605), the abutting rod (606) and the abutting hole (603) are all arranged in a plurality of circumferential arrays, and the rotary rod (605) is of a hexagonal prism structure.

10. A special threaded oil sleeve joint according to claim 1, wherein: the side face of the abutting ring (304) is obliquely arranged, the section of the abutting ring is of an arc-shaped structure, and the fastening ring (305) and the opposite face of the abutting ring (304) are arranged in parallel.