CN210372536U

CN210372536U - Line-crossing steering gear of intelligent pipeline plugging robot

Info

Publication number: CN210372536U
Application number: CN201921990081.9U
Authority: CN
Inventors: 唐洋; 刘祥; 孙鹏; 敬鑫; 黄顺潇; 刘清友; 王国荣
Original assignee: Southwest Petroleum University
Current assignee: Southwest Petroleum University
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-04-21
Anticipated expiration: 2029-11-18

Abstract

The utility model discloses a line steering gear can be crossed to pipeline intelligence shutoff robot, including last casing, nozzle stub, trompil spherical shell, lower casing, connecting bolt, large tracts of land sealing washer, outer lane, holder, steel ball roller. The upper shell and the lower shell are in threaded connection to form a cavity, a steel ball roller in the cavity is in high-pair contact with the spherical surface of the perforated spherical shell to reduce friction area and reduce abrasion, the large-area sealing ring on the annular sealing ring mounting groove of the lower shell is in sliding sealing with the spherical surface, the perforated spherical shell is in threaded connection with the short pipe, and the pipeline can be ensured to pass through the large internal channel. The utility model has the characteristics of cable or hydraulic pipeline passing, low abrasion, sealed inner space, tensile and pressure bearing; one wire-through steering gear can realize the arbitrary steering of the turning angle range of 0-90 degrees in the pipe.

Description

Line-crossing steering gear of intelligent pipeline plugging robot

Technical Field

The invention relates to the technical field of intelligent plugging robots for repairing oil and gas pipelines, in particular to a wire passing diverter of an intelligent plugging robot for a pipeline.

Background

The oil and gas energy is huge in reserves in the world at present, is one of necessary energy sources for strategic energy reserves of the country, and the importance of the oil and gas energy is self-evident. The transportation of oil and gas is an essential step in oil and gas exploitation, and the maintenance of pipelines is very important in the face of failure problems caused by long-time environment or other uncertain factors of the pipelines. In the maintenance operation of pipeline, to the impaired pipeline section that needs to be changed, transfer pipeline intelligence shutoff robot at first and arrive the intraductal target location that needs the shutoff, realize the shutoff again after, carry out the restoration operation.

The intelligent pipeline plugging robot is placed at the feed opening, the intelligent pipeline plugging robot is pushed to move by utilizing the movement of fluid in an oil pipeline, the internal channel of the oil pipeline is narrow, when the oil pipeline passes through a curve, the length of each unit section of the intelligent pipeline plugging robot is required to be smaller than the maximum bending length, and therefore the intelligent pipeline plugging robot is complete and comprises a plurality of unit sections, the connection of each unit section can be guaranteed through a line steering gear, and the communication of each unit section is maintained. In the existing articulated ball universal coupling, the spherical surfaces are in cohesive contact, the contact area of the two spherical surfaces is too large, the abrasion is serious, and the precision requirement of the whole spherical surface is higher; the existing hinge ball contact mode is mostly applied to a coupler, so that the deflection angle can only be in the range of 0-10 degrees, and if the existing hinge ball contact mode is directly applied to an intelligent pipeline plugging robot, the existing hinge ball contact mode cannot pass through a bent section of an oil-gas pipeline; because the communication cable enables all unit sections to work coordinately, if the cable between two unit sections is exposed in an oil gas pipe, serious safety accidents can be caused, and at present, no steering gear for allowing the cable or a hydraulic pipeline to pass through is available.

Therefore, the invention is needed to invent a line passing diverter of a pipeline intelligent plugging robot, so as to meet the following requirements:

1, the use of a single wire-through diverter can realize the turning of the robot which deflects for 0-90 degrees in any direction in the pipe, and a plurality of wire-through diverters can be connected and combined by adopting bolts;

2, realizing the passing of communication cables or hydraulic pipelines among the sections of each unit;

3, the friction area is minimized, and the abrasion of the wire passing steering gear is reduced;

4, realizing the fluid isolation between the internal channel of the wire-passing diverter and the oil pipeline;

thereby the normal work of effectual assurance pipeline intelligence shutoff robot.

Disclosure of Invention

The invention aims to: aiming at the problems and requirements of connection of each unit section of the existing intelligent pipeline plugging robot, the wire passing steering gear of the intelligent pipeline plugging robot is provided, and the problem of serious spherical surface contact abrasion of the existing hinged ball connector is solved; the intelligent pipeline plugging robot can rotate at a large rotation angle in any direction when passing through a curve; the connection of each unit section of the intelligent pipeline plugging robot and the passing of a cable or hydraulic pipeline are ensured; the inside of the wire passing steering gear is sealed, so that the contact between oil and a cable is avoided.

The invention adopts the following technical scheme:

the following technical scheme is adopted to solve the technical problems of the invention: the utility model provides a pipeline intelligence shutoff robot can cross line steering gear, mainly has two the same coupling mechanism to connect through the bolt and constitutes, and single mechanism mainly includes that upper housing, holder, steel ball roller, outer lane, trompil spherical shell, lower casing, large tracts of land sealing washer, nozzle stub and connecting bolt constitute. Go up casing and lower casing threaded connection, the ectosphere of trompil spherical shell contacts with the steel ball roller point and forms high vice, again with nozzle stub threaded connection, and the large tracts of land sealing washer is packed into to the ring type seal mounting groove on the casing down, forms sliding seal with the sphere contact of trompil spherical shell, and inside and nozzle stub inner channel of trompil spherical shell can supply cable or hydraulic pressure pipeline to pass through.

The upper shell is provided with through holes connected by 6 bolts in the circumferential direction, a pipe wall with an internal thread and a non-contact upper limiting spherical surface

The lower shell is provided with an installation groove for installing an annular sealing ring, an external thread pipe wall and a non-contact lower limiting spherical surface

The invention has the beneficial effects that: (1) the problem of serious contact abrasion of the traditional hinge ball is solved; (2) the cable or hydraulic pipeline in the articulated ball rod piece can pass through; (3) the sealing of the inner space of the wire-passing diverter can be realized, and the wire-passing diverter is isolated from external fluid; (4) the single use can realize the large-angle turning in any direction in the pipe, and the turning angle range is 0-90 degrees.

Description of the drawings:

FIG. 1 is a schematic diagram of a wire passing diverter of an intelligent pipeline plugging robot;

FIG. 2 is a schematic cross-sectional view of one end of a wire-passing diverter of an intelligent pipeline plugging robot;

FIG. 3 is a schematic diagram of a quarter section of an upper housing of a line passing diverter of an intelligent pipeline plugging robot;

FIG. 4 is a schematic view of a quarter section of a lower housing of a line crossing diverter of the intelligent pipeline plugging robot;

FIG. 5 is a schematic view of the assembly of a retainer, a steel ball roller and an outer ring of the wire passing diverter of the intelligent pipeline plugging robot;

FIG. 6 is a schematic diagram of a quarter section of a large-area sealing ring of a line-crossing diverter of an intelligent pipeline plugging robot;

1-an upper shell; 101-internal thread pipe wall; 102-non-contact upper limit spherical surface; 103-bolt connection through holes; 2-short pipe; 3-opening a spherical shell; 4-a lower shell; 401-external thread pipe wall; 402-annular seal ring mounting groove; 403-non-contact lower limiting spherical surface; 5-connecting bolts; 6-large area sealing ring; 7-a cage; 8-a steel ball roller; 9-outer ring.

The specific implementation mode is as follows:

the invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following description:

as shown in fig. 1-6, a line diverter can be crossed to pipeline intelligence shutoff robot which characterized in that: the ball valve mainly comprises an upper shell (1), a short pipe (2), a perforated spherical shell (3), a lower shell (4), a connecting bolt (5), a large-area sealing ring (6), a retainer (7), a steel ball roller (8) and an outer ring (9).

The line-passing steering gear is connected with the connected device through the bolt connecting through hole (103) of the upper shell (1), and the intelligent pipeline plugging robot can smoothly pass through the oil pipe curve through the connection of the line-passing steering gear to each unit section. The wire-passing steering gear is connected by two identical mechanisms through a connecting bolt (5), and the specific implementation mode of one end of each mechanism is as follows: the large-area sealing ring (6) is arranged in an annular sealing ring mounting groove (402) of the lower shell (4), then the perforated spherical shell (3) is arranged to be screwed with the upper short pipe (2), the steel ball roller (8) is arranged on the retainer (7) to sleeve the outer ring (9) and integrally cover the perforated spherical shell (3), the upper shell (1) is covered to be screwed with the upper shell (1) to achieve axial fixation, the rod piece formed by connection can swing, meanwhile, a plurality of wire passing steering devices are connected through the connecting bolt (5), and larger-angle turning is realized.

Finally, it should be noted that: although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.

Claims

1. The utility model provides a line steering gear can be crossed to pipeline intelligence shutoff robot, mainly pass through bolted connection by the mechanism that two sections are the same, single coupling mechanism's one end is by last casing (1), with lower casing (4) of last casing (1) threaded connection, large tracts of land sealing washer (6) in casing (4) ring packing groove down, go up steel ball roller (8) between the boss of casing (1) and lower casing (4), holder (7), outer lane (9), trompil spherical shell (3) in the casing, constitute its characterized in that with trompil spherical shell (3) threaded connection's nozzle stub (2): the upper shell (1) is provided with an internal thread pipe wall (101), a non-contact upper limiting spherical surface (102) and a circumferential 6-bolt connecting through hole (103).

2. The line-passing diverter of intelligent pipeline plugging robot according to claim 1, characterized in that: the lower shell (4) is provided with an external thread connecting pipe wall surface (401), an annular sealing ring mounting groove (402) and a non-contact lower limiting spherical surface (403).