WO2019000648A1

WO2019000648A1 - Processing device for interior of pipeline

Info

Publication number: WO2019000648A1
Application number: PCT/CN2017/101519
Authority: WO
Inventors: 何家骥; 文华平; 张友智; 黄媛; 孔庆龙
Original assignee: 广船国际有限公司
Priority date: 2017-06-30
Filing date: 2017-09-13
Publication date: 2019-01-03
Also published as: CN107166135B; CN107166135A

Abstract

A processing device for the interior of a pipeline, comprising: a flexible transmission shaft (100) having a first end and a second end opposite to the first end; a support (200) having a circular shape; and a driving device (300) connected with the second end. An axis of the support is connected with the first end, and several rollers coming into contact with the inner wall of the pipeline (1) are provided at intervals on the periphery of the support (200). The driving device (300) can transmit a twisting force to the support (200) by means of the flexible transmission shaft (100) so as to drive the support (200) to move in a length direction of the pipeline (1), thereby implementing cleaning, unclogging and polishing on the inner wall of the pipeline; and the driving device (300) can transport an object to be transported to a target position by means of the support (200), which is not influenced by the shape of the pipeline. The processing device for the interior of a pipeline can be applied to interior processing of the pipeline, and does not require dismounting or cutting the pipeline, thus saving a great amount of labor, time and material resources.

Description

Pipe internal processing device

Technical field

The invention relates to a pipeline system operation technology, and in particular to a pipeline internal treatment device.

Background technique

There are many kinds of pipeline systems, such as ships and industries. There are various sizes of diameters, and the pipelines are curved and curved, and the materials are different. In the pipeline production, installation and maintenance, some parts of the inner surface of the pipeline shall be treated, such as dredging, grinding, repairing, etc. The treatment of the inner surface of the pipeline shall not be completely entered into the pipeline for operation. Dismantle or other methods of disposal. Some pipes have a large length and a large number of bends. If it is necessary to do the inner surface treatment, only the pipe segments can be removed. Pipes connected by pipes such as flanges connected by detachable joints can be directly removed, but if the pipes are welded by welding or casing, they need to be cut and then processed, especially the welded joints. When there are other objects around it, it is necessary to remove the surrounding objects, which requires a lot of manpower and material resources, and takes a long working time.

Summary of the invention

The object of the present invention is to provide a pipeline internal processing device which can move freely in the pipeline to transport objects, and can clean, unblock, polish and the like on the inner wall of the pipeline.

To this end, the present invention employs the following technical solutions:

Providing a pipeline internal processing device comprising:

a drive shaft, the drive shaft having opposite first and second ends;

a bracket having a circular shape, the shaft center of the bracket being connected to the first end, and the outer circumference of the bracket is spaced apart by a plurality of rollers contacting the inner wall of the duct;

a driving device coupled to the second end, the driving device transmitting a torque to the bracket through the transmission flexible shaft to drive the bracket to move along a length of the duct.

As a preferred technical solution of the internal pipe processing device, the bracket includes a first bracket and a second bracket which are spaced apart, the first bracket includes a first central axis and is disposed at the first central axis a first bracket body of the outer circumference, the first bracket body is rotatable about an axis of the first central axis, and the second bracket includes a second central shaft and a second bracket body disposed on an outer circumference of the second central shaft The second bracket body is rotatable about an axis of the second central axis;

The transmission flexible shaft includes a first transmission flexible shaft and a second transmission flexible shaft, and one end of the first central shaft is connected to the second central shaft through the first transmission flexible shaft, the second An end of the central shaft away from the first central shaft is coupled to the drive device via the second transmission flex shaft.

As a preferred technical solution of the internal pipe processing device, the first bracket body and the second bracket body rotate in opposite directions.

As a preferred technical solution of the internal pipe processing device, an outer circumference of the first central shaft is connected to the first bracket body through a first gear set, and an outer circumference of the second central shaft passes through a second gear The set is coupled to the second bracket body, the number of gears of the first gear set is an odd number, and the number of gears of the second gear set is an even number.

As a preferred technical solution of the internal pipe processing device, the first gear set includes a first sun gear, a first intermediate gear, and a first gear housing in a radial direction of the first central axis. The first sun gear is fixedly mounted on an outer circumference of the first central shaft and meshes with the first intermediate gear, and an inner circumference of the first gear housing has an inner meshing engagement with the first intermediate gear a tooth, the first bracket body is disposed at an outer circumference of the first gear housing;

In the radial direction of the second central axis, the second gear set includes a second sun gear, a second intermediate gear, a third intermediate gear, and a second gear housing, and the second sun gear is fixedly mounted An outer circumference of the second central shaft and meshed with the third intermediate gear through the second intermediate gear, the inner circumference of the second gear housing having a gear meshing with the third intermediate gear, the The second bracket body is disposed on an outer circumference of the second gear housing.

As a preferred technical solution of the internal pipe processing device, the first bracket body includes a plurality of inclined brackets disposed on a first bracket plate at an outer circumference of the first gear housing, and a plurality of the first bracket plates The tilting direction is the same, and the first roller is disposed at an end thereof away from the first gear housing, and the tilting direction of the first bracket plate is opposite to the rotating direction of the first bracket;

The second bracket body includes a plurality of second bracket plates disposed on the outer circumference of the second gear housing, and the second bracket plates are inclined in the same direction and away from the end of the second gear housing Provided with a second roller, the inclination direction of the second bracket plate is opposite to the rotation direction of the second bracket;

The first bracket plate and the second bracket plate are both flexible plates.

As a preferred technical solution of the internal pipe processing device, the first intermediate gear is fixed by a sleeve of the first central shaft, and the sleeve of the first central shaft and the first center A first yielding zone is disposed between the axes;

The second intermediate gear and the third intermediate gear are fixed by a sleeve of the second central shaft, and a second retaining zone is disposed between the sleeve of the second central shaft and the second central shaft ;

The driving device includes a control portion having a first position and a second position, and when the control portion is in the first position, the first sun gear is located in the first yielding zone, a second sun gear is located in the second yielding zone to separate the first sun gear from the first intermediate gear, and the second sun gear is separated from the second intermediate gear; the control section In the second position, the first sun gear meshes with the first intermediate gear and the second sun gear meshes with the second intermediate gear.

As a preferred technical solution of the internal processing device of the pipeline, the driving device is further included An electric motor and a hollow shaft connected to an output shaft of the electric motor, the hollow shaft being coupled to a second transmission flexible shaft, the hollow shaft being provided with a hollow sleeve externally, the hollow sleeve being disposed along the hollow shaft A dial hole is defined in the longitudinal direction, and one end of the control portion is selectively inserted into the dial hole to be connected with the hollow shaft to push the hollow shaft to move along the length thereof.

As a preferred technical solution of the internal pipe processing device, the hollow shaft is connected to the second transmission flexible shaft through a card shaft, and the dial shaft is fixed with a dial block, and one end of the control portion is disposed. There is a card slot that is engaged with the dial block.

As a preferred technical solution of the internal pipe processing device, the outer circumference of the output shaft of the electric motor is provided with a first gear, and the outer circumference of the hollow shaft is provided with a second gear, the first gear and the The second gear meshes.

The beneficial effects of the invention: the internal processing device of the pipeline of the invention, the driving device can drive the rotation of the transmission flexible shaft, and transmit the torque of the transmission flexible shaft to the bracket, so that the bracket moves along the length of the pipeline in the pipeline, which can realize The inner wall of the pipeline is cleaned, dredged, polished, etc., and the object to be transported can be placed in front of the moving direction of the bracket, and the object to be transported is transported to the target position through the bracket, and the movement of the bracket in the pipeline is not affected by the pipeline. The effect of the shape. The internal processing device of the pipeline in the invention is applied to the internal processing of the pipeline, and the pipeline is not required to be removed or cut, which can save a lot of manpower, material resources and time.

DRAWINGS

1 is an exploded perspective view of a pipeline internal processing apparatus according to an embodiment of the present invention.

Figure 2 is a cross-sectional view taken along line A-A of Figure 1.

Figure 3 is a cross-sectional view taken along line B-B of Figure 1.

Figure 4 is an enlarged view of a portion I of Figure 1.

FIG. 5 is a schematic diagram of a pipeline internal processing apparatus according to an embodiment of the present invention.

In Figures 1 to 5:

1. Pipeline;

100, transmission flexible shaft; 110, first transmission flexible shaft; 120, second transmission flexible shaft; 200, bracket; 210, first bracket; 211, first central shaft; 212, first bracket body; a central gear; 214, a first intermediate gear; 215, a first gear housing; 216, a first roller; 220, a second bracket; 221, a second central shaft; 222, a second bracket body; 223, a second sun gear 224, second intermediate gear; 225, third intermediate gear; 226, second gear housing; 227, second roller; 300, driving device; 310, control portion; 320, motor; 330, hollow shaft; Long hole; 340, hollow sleeve; 341, dial hole; 350, card shaft; 351, convex key; 352, dial block; 360, first gear; 370, second gear; 410, first yielding area; Second concession area.

Detailed ways

The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it is to be understood that the orientation or positional relationship of the terms "inside", "outside" and the like is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplified description. Instead of indicating or implying that the device or component referred to must have a particular orientation, constructed and operated in a particular orientation, it is not to be construed as limiting the invention.

Moreover, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first", "second", and "third" may include one or more of the features, either explicitly or implicitly.

In the description of the present invention, the term "fixed" is to be understood broadly, unless it is specifically defined and defined, for example, it may be a fixed connection, a detachable connection, or an integral; it may be mechanical The connection may also be an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be internal communication of two components or an interaction relationship of two components. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.

In the present invention, the first feature "on" or "under" the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them. Moreover, the first feature "on" the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature is at a higher level than the second feature. The first feature "under" the second feature includes the first feature directly below and below the second feature, or merely indicating that the first feature level is less than the second feature.

As shown in FIG. 1 to FIG. 5, the internal processing device of the pipeline provided by the embodiment includes: a transmission flexible shaft 100 having a first end and a second end; and a bracket 200 having a circular shape. The shaft center of the bracket 200 is connected to the first end. The outer circumference of the bracket 200 is spaced apart from the roller that is in contact with the inner wall of the pipe 1. The driving device 300 is connected to the second end, and the driving device 300 can pass through the transmission shaft 100. Torque is transmitted to the bracket 200 to drive the bracket 200 to move along the length of the duct 1. In this embodiment, the outer circumference of the bracket 200 is provided with a roller that is in rolling contact with the inner wall of the pipe 1. The bracket 200 is connected to the driving device 300 through the transmission flexible shaft 100, and the driving device 300 can drive the transmission flexible shaft 100 to rotate, and the transmission flexible shaft The torque of 100 is transmitted to the bracket 200, so that the bracket 200 moves along the length of the pipeline in the pipeline 1, and the inner wall of the pipeline 1 can be cleaned, unblocked, polished, etc., and the object to be transported can be placed on the bracket 200. In front of the direction of motion, the object to be transported is transported to the target location by the bracket 200, and the movement of the bracket 200 within the duct 1 is not affected by the shape of the duct 1. The internal pipe processing device in this embodiment is applied to the internal processing of the pipe 1, and the pipe is not required to be removed or cut, which can save a lot of manpower, material resources and time.

The bracket 200 can be a flexible, deformable structure such that when the bracket 200 moves within the duct 1, If the pipe 1 is bent and the inner diameter becomes small, the bracket 200 can smoothly move inside the pipe 1.

Preferably, the bracket 200 includes a first bracket 210 and a second bracket 220 that are spaced apart. The first bracket 210 includes a first central shaft 211 and a first bracket body 212 disposed on an outer circumference of the first central shaft 211. The first bracket body 212 Rotatable about an axis of the first central axis 211, the second bracket 220 includes a second central shaft 221 and a second bracket body 222 disposed on an outer circumference of the second central shaft 221, and the second bracket body 222 is rotatable around the second central axis 221 The shaft is rotated; the transmission flexible shaft 100 includes a first transmission flexible shaft 110 and a second transmission flexible shaft 120, and one end of the first central shaft 211 is connected to the second central shaft 221 through the first transmission flexible shaft 110, and the second center One end of the shaft 221 away from the first central shaft 211 is connected to the driving device 300 through the second transmission flexible shaft 120. By setting up two brackets, you can increase the power of the entire unit. In the present embodiment, the bracket 200 is not limited to two, and the number thereof may be designed according to the size of the duct 1. Since the two brackets are connected by the first transmission flexible shaft 110, the second bracket 220 is connected to the driving device 300 through the second transmission flexible shaft 120, and the driving device 300 can transmit the power (torque) to the second transmission flexible shaft 120 to The second bracket 220 transmits the power to the first bracket 210 through the first transmission flexible shaft 110, and the two brackets advance or retreat simultaneously, wherein when the object needs to be transported, the object to be transported can be placed in two The forefront of the advance direction of the brackets.

In this embodiment, the first transmission flexible shaft 110 and the second transmission flexible shaft 120 each include a flexible transmission shaft body and a flexible protective sleeve disposed on the outer circumference of the flexible transmission shaft.

In this embodiment, the first central shaft 211, the second central shaft 221, the first transmission flexible shaft 110 and the second transmission flexible shaft 120 have opposite first and second ends, wherein the first end is close to the driving device 300, the second end is away from the driving device 300, the first end is provided with a concave connecting pair, the second end is provided with a convex connecting pair, and the first central shaft 211 and the second central shaft 221 are both hollow structures, concave connecting pairs and The male coupling pairs are mounted inside the first central shaft 211 and the second central shaft 221, and are fixed by a snap ring. Between the first central shaft 211 and the first transmission flexible shaft 110, between the first transmission flexible shaft 110 and the second central shaft 221 And the second central shaft 221 and the second transmission flexible shaft 120 are respectively connected by the cooperation of the concave connecting pair and the male connecting pair.

As a preferred embodiment of the present invention, the first bracket body 212 and the second bracket body 222 rotate in opposite directions. For example, when the first transmission flexible shaft 110 drives the first bracket body 212 to rotate in the counterclockwise direction, the first bracket 210 reacts to the first transmission flexible shaft 110, that is, the first bracket 210 has a reaction force to the first transmission flexible shaft 110. If there is only one first bracket 210, if the reaction force is greater than the torque of the first transmission flexible shaft 110 The first bracket 210 will rotate, and the second bracket body 222 rotates in the clockwise direction, and the reaction force of the second bracket 220 against the first transmission flexible shaft 110 can cancel the first bracket body 212 to the first transmission soft. The reaction force of the shaft causes the first bracket body 212 to smoothly rotate.

The outer circumference of the first central shaft 211 is connected to the first bracket body 212 through the first gear set, and the outer circumference of the second central shaft 221 is connected to the second bracket body 222 through the second gear set, and the number of gears of the first gear set Increasingly, the number of gears of the second gear set is an even number to ensure that the first bracket body 212 and the second bracket body 222 are rotated in opposite directions.

Preferably, in a radial direction of the first central axis 211, the first gear set includes a first sun gear 213, a first intermediate gear 214, and a first gear housing 215, and the first sun gear 213 is fixedly mounted on the first central axis. The outer circumference of the second gear housing 215 is engaged with the first intermediate gear 214, the inner circumference of the first gear housing 215 has internal teeth that mesh with the first intermediate gear 214, and the first bracket body 212 is disposed on the outer circumference of the first gear housing 215; Wherein, the sleeve of the first central shaft 211 is provided with a first gear mounting hole, the first intermediate gear 214 is installed in the first gear mounting hole, and the first gear housing 215 is mounted on the first central shaft by two bearings The outer part of the sleeve of 211 is fixed by a cover plate. In the radial direction of the second central axis 221, the second gear set includes a second sun gear 223, a second intermediate gear 224, a third intermediate gear 225, and a second gear housing 226, and the second sun gear 223 is fixedly mounted. The outer circumference of the two central axes 221 The second intermediate gear 224 is meshed with the third intermediate gear 225, the inner circumference of the second gear housing 226 has a gear that meshes with the third intermediate gear 225, and the second bracket body 222 is disposed at the outer circumference of the second gear housing 226. . Wherein, the sleeve of the second central shaft 221 is provided with a second gear mounting hole, the second intermediate gear 224 and the third intermediate gear 225 are mounted in the second gear mounting hole, and the second gear housing 226 passes through two bearings It is mounted on the outside of the sleeve of the second central shaft 221 and is fixed by a cover plate, respectively.

In this embodiment, the first bracket body 212 includes a plurality of first bracket plates disposed on the outer circumference of the first gear housing 215. The first bracket plates are inclined in the same direction and are away from the end of the first gear housing 215. The first roller 216 is disposed, and the tilt direction of the first bracket plate is opposite to the rotation direction of the first bracket 210. The second bracket body 222 includes a plurality of second bracket plates disposed on the outer circumference of the second gear housing 226. The two bracket plates have the same inclination direction, and the second roller 227 is disposed at one end of the second gear housing 226. The inclination direction of the second bracket plate is opposite to the rotation direction of the second bracket 220; the first bracket plate and the second bracket The bracket plates are all flexible boards. The inclination direction of the first bracket plate and the second bracket plate are opposite to the rotation direction thereof, and the first bracket plate and the second bracket plate are both flexible plates, and can adapt to different pipe diameters during the rotation process, and the pipe diameter is relatively smaller than the bracket 200. In the case of the diameter, the first bracket plate and the second bracket plate can be pressure-deformed on the pipe wall to match the pipe diameter, thereby making the movement in the pipe 1 smoother.

The first roller 216 and the second roller 217 can be detachably coupled to the first bracket body 212 and the second bracket body 222, respectively, so that different rollers can be replaced in use to achieve different operations. For example, replacing the roller with a brush on the outer periphery can clean the inner wall of the pipe, and replace the roller with a frosted layer to polish and rust the inner wall of the pipe.

As a further preferred embodiment of the present invention, the first roller 216 is in rolling contact with the inner wall of the pipe 1, and the axis of the first roller 216 is inclined toward the side away from the driving device 300; the second roller 227 is in rolling contact with the inner wall of the pipe 1. And the axis of the second roller 227 is directed toward the driving device 300 The tilting design of one side and the tilting design of the two rollers can respectively increase the moving power of the corresponding bracket body.

The first intermediate gear 214 is fixed by the sleeve of the first central shaft 211, and the first retaining area 410 is disposed between the sleeve of the first central shaft 211 and the first central shaft 211; the second intermediate gear 224 and The third intermediate gear 225 is fixed by the sleeve of the second central shaft 221, and the second retaining area 420 is disposed between the sleeve of the second central shaft 221 and the second central shaft 221; the driving device 300 includes a control unit 310 for controlling The portion 310 has a first position and a second position. When the control portion 310 is in the first position, the first sun gear 213 is located in the first yielding zone 410, and the second sun gear 223 is located in the second yielding zone 420, so that the first portion The sun gear 213 is separated from the first intermediate gear 214, and the second sun gear 223 is separated from the second intermediate gear 224; when the control portion 310 is in the second position, the first sun gear 213 is meshed with the first intermediate gear 214, the second center The gear 223 is meshed with the second intermediate gear 224. The control portion 310 can selectively control the first sun gear 213 to be located in the first yielding zone and the second sun gear 223 to be located in the second yielding zone 420, thereby stopping the movement of the two brackets in the duct 1.

In this embodiment, the driving device 300 further includes a motor 320 and a hollow shaft 330 connected to the output shaft of the motor 320. The hollow shaft 330 is coupled to the second transmission flexible shaft 120. The hollow shaft 330 is provided with a hollow sleeve 340 and a hollow shaft. A dial hole 341 is defined in the sleeve 340 along the longitudinal direction of the hollow shaft 330. One end of the control portion 310 is selectively inserted into the dial hole 341 to be coupled with the hollow shaft 330 to push the hollow shaft 330 to move along the length thereof.

The length of the dial hole 341 corresponds to the moving distance of the control portion 310, that is, when the control portion 310 moves to the first position, the control portion 310 is located at one end of the dial hole 341, and when the control portion 310 moves to the second position, the control portion 310 is located just at the other end of the dial hole 341. In other embodiments, the length of the dial hole 341 may also be set to be larger than the moving length of the control portion 310. As a preferred embodiment of the present invention, the hollow shaft 330 is coupled to the second transmission flexible shaft 120 via the clamping shaft 350. The locking shaft 352 is fixed on the clamping shaft 350. One end of the control portion 310 is provided with the locking block 352. Card slot. Preferably, the dial block There is a gap between the 352 and the inner wall of the hollow sleeve 340 to allow the card shaft 350 to smoothly rotate. When the internal processing device of the pipe is operated, the control unit 310 needs to be removed, and when the internal processing device of the pipe stops running, the control unit 310 can be inserted into the dial hole 341 to be engaged with the dial 352, and the control unit 310 can be manually controlled. Move to the first position or the second position to selectively activate and stop the first bracket 210 and the second bracket 220.

The shaft wall of the hollow shaft 330 is provided with a long hole 331 along the longitudinal direction of the hollow shaft 330. The inner wall of the shaft 350 is provided with a convex key 351. The clamping shaft 350 is sleeved on the hollow shaft by the cooperation of the convex key 351 and the long hole 331. In addition to 330, the control unit 310 is fixedly coupled to the male key 351 through the mounting hole 341, and the control unit 310 can move the convex key 351 along the longitudinal direction of the long hole 331. The long hole 331 has opposite first and second ends along the length direction thereof. When the control portion 310 drives the convex key 351 to move to the first end of the long hole 331, the first sun gear 213 is located in the first letting area, and the second The central gear is located in the second retaining zone 420, so that the two brackets stop rotating in the pipe 1. When the control part 310 drives the convex key 351 to move to the second end of the long hole 331, the first sun gear 213 and the first intermediate gear The second center gear 223 is meshed with the second intermediate gear 224.

Wherein, the one end of the clamping shaft 350 away from the driving device 300 is provided with a concave connecting pair which cooperates with a convex connecting pair provided at one end of the second transmission flexible shaft 120 to connect the second transmission flexible shaft 120 and the clamping shaft 350.

The motor 320 is connected to the hollow shaft 330 through two gears. Specifically, the outer circumference of the output shaft of the motor 320 is provided with a first gear 360. The outer circumference of the hollow shaft 330 is provided with a second gear 370, and the first gear 360 and the second gear 370 Engage. When the motor 320 rotates forward, the output shaft of the motor 320 drives the first gear 360 to rotate forward, and the first gear 360 drives the second gear 370 to reverse, thereby inverting the hollow shaft 330 and driving the second transmission flexible shaft 120. The second central shaft 221 and the second sun gear 223 are reversed, the second intermediate gear 224 is rotated forward, and the third intermediate gear 225 is reversed, and the second gear housing is reversed. 226 drives the second bracket body 222 to rotate forward, and at the same time, the reverse rotation of the second central shaft 221 transmits the torque to the first hollow shaft 211 through the first transmission flexible shaft 110, and the first hollow shaft 211 and the first center The gears 213 are reversed together, and the first intermediate gear 212 rotates forwardly. The first gear housing 215 drives the first bracket body 212 to rotate forward, and the two brackets move in the direction of the duct 1 away from the driving device 300. . When the motor 320 is reversed (the principle is similar to that of the forward rotation, which will not be described herein), the two brackets move in the direction of the drive unit 300 in the duct 1.

In this embodiment, two bearings are disposed between the hollow sleeve 340 and the hollow shaft 330. The two bearings are respectively located at two ends of the second gear 370 along the longitudinal direction of the hollow shaft 330, so that the rotation of the hollow shaft 330 is further Smooth.

In the present embodiment, the hollow sleeve 340 includes a first sleeve for mounting the first gear 360 and the second gear 370 and a second sleeve for mounting the hollow shaft 330, and the dial hole 341 is disposed on the second sleeve .

By applying the internal pipe processing device of the invention, it is convenient to carry out internal surface inspection, treatment or other operations on pipes of various shapes and long lengths, thereby reducing disassembly and assembly of the pipeline, reducing the influence on the surrounding environment, and reducing unnecessary Damage and waste, improve work efficiency and economic benefits.

The device has a simple structure and is connected and used by the component type combination, and is convenient to use and simple to maintain. Since the equipment used in the inner part of the pipeline has no electrical parts, the weight of the equipment itself is reduced, and it can be used in a flammable and explosive environment such as oil and gas, and the application range is wide.

The liquid cargo system of the chemical tanker is generally connected by stainless steel pipe butt welding. During the construction process, the inner surface of the welded joint is inspected or polished. If a general endoscope is used, the plastic tube is used to propel the camera for observation. It takes a lot of time, and it is impossible to pass the pipeline or the corner part with a large bending angle. The pipeline cannot be completely inspected. After the inspection, the pipeline needs to be disassembled and processed, and the pipeline needs to be acid-treated. . By using the internal pipe processing device of the invention, the efficiency of the internal inspection of the pipeline system can be improved, and for each ship, 800 weld seams, each weld seam is reduced by 0.5 hours, and can be reduced. Less than 400 hours of work, improve work efficiency; if using the device for surface treatment, etc., can reduce pipe disassembly and reduce losses.

The pipeline internal processing device of the invention can be applied to internal inspections of pipelines such as industry, buildings, roads, etc., to reduce the impact of pipeline disassembly and assembly, and to avoid economic losses.

In the description of the present specification, the description of the term "preferred embodiment" or the like means that a specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

The above embodiments are only intended to illustrate the detailed methods of the present invention, and the present invention is not limited to the above detailed methods, and does not mean that the present invention must be implemented by the above detailed methods. It should be apparent to those skilled in the art that any modifications of the present invention, equivalent substitution of the various materials of the products of the present invention, addition of auxiliary components, selection of specific means, and the like, are all within the scope of the present invention.

Claims

A pipeline internal processing device, comprising:

a drive shaft, the drive shaft having opposite first and second ends;

a bracket having a circular shape, the shaft center of the bracket being connected to the first end, and the outer circumference of the bracket is spaced apart by a plurality of rollers contacting the inner wall of the duct;

a driving device coupled to the second end, the driving device transmitting a torque to the bracket through the transmission flexible shaft to drive the bracket to move along a length of the duct.
The pipe internal processing apparatus according to claim 1, wherein said bracket comprises spaced apart first and second brackets, said first bracket including a first central axis and said first central axis a first bracket body of the outer circumference, the first bracket body is rotatable about an axis of the first central axis, and the second bracket includes a second central shaft and a second bracket body disposed on an outer circumference of the second central shaft The second bracket body is rotatable about an axis of the second central axis;

The transmission flexible shaft includes a first transmission flexible shaft and a second transmission flexible shaft, and one end of the first central shaft is connected to the second central shaft through the first transmission flexible shaft, the second An end of the central shaft away from the first central shaft is coupled to the drive device via the second transmission flex shaft.
The pipeline internal processing apparatus according to claim 2, wherein the first bracket body and the second bracket body rotate in opposite directions.
The pipeline internal processing apparatus according to claim 3, wherein an outer circumference of the first central shaft is coupled to the first bracket body through a first gear set, and an outer circumference of the second central shaft passes through a second gear The set is coupled to the second bracket body, the number of gears of the first gear set is an odd number, and the number of gears of the second gear set is an even number.
The pipeline internal processing apparatus according to claim 4, wherein the first gear set includes a first sun gear, a first intermediate gear, and a first gear housing in sequence in a radial direction of the first central axis The first sun gear is fixedly mounted on an outer circumference of the first central shaft and is opposite to the first The intermediate gear is engaged, the inner circumference of the first gear housing has internal teeth that mesh with the first intermediate gear, and the first bracket body is disposed at an outer circumference of the first gear housing;

In the radial direction of the second central axis, the second gear set includes a second sun gear, a second intermediate gear, a third intermediate gear, and a second gear housing, and the second sun gear is fixedly mounted An outer circumference of the second central shaft and meshed with the third intermediate gear through the second intermediate gear, the inner circumference of the second gear housing having a gear meshing with the third intermediate gear, the The second bracket body is disposed on an outer circumference of the second gear housing.
The pipeline internal processing apparatus according to claim 5, wherein the first bracket body comprises a plurality of inclined brackets disposed on a periphery of the first gear housing, and a plurality of the first bracket plates The tilting direction is the same, and the first roller is disposed at an end thereof away from the first gear housing, and the tilting direction of the first bracket plate is opposite to the rotating direction of the first bracket;

The second bracket body includes a plurality of second bracket plates disposed on the outer circumference of the second gear housing, and the second bracket plates are inclined in the same direction and away from the end of the second gear housing Provided with a second roller, the inclination direction of the second bracket plate is opposite to the rotation direction of the second bracket;

The first bracket plate and the second bracket plate are both flexible plates.
The pipeline internal processing apparatus according to claim 5, wherein said first intermediate gear is fixed by a sleeve of said first central shaft, and said sleeve of said first central shaft is aligned with said first center A first yielding zone is disposed between the axes;

The second intermediate gear and the third intermediate gear are fixed by a sleeve of the second central shaft, and a second retaining zone is disposed between the sleeve of the second central shaft and the second central shaft ;

The driving device includes a control portion having a first position and a second position, and when the control portion is in the first position, the first sun gear is located in the first yielding zone, a second sun gear is located in the second yielding zone to divide the first sun gear with the first intermediate gear And the second sun gear is separated from the second intermediate gear; when the control portion is in the second position, the first sun gear meshes with the first intermediate gear, the second center A gear meshes with the second intermediate gear.
A pipeline internal processing apparatus according to claim 7, wherein said driving means further comprises an electric motor and a hollow shaft connected to an output shaft of said electric motor, said hollow shaft being coupled to said second transmission flexible shaft, said a hollow sleeve is disposed outside the hollow shaft, and the hollow sleeve is provided with a dial hole along the longitudinal direction of the hollow shaft, and one end of the control portion is selectively inserted into the dial hole to be connected with the hollow shaft. To push the hollow shaft to move along its length.
The pipe internal processing device according to claim 8, wherein the hollow shaft is coupled to the second transmission flexible shaft via a card shaft, and the dial shaft is fixed with a dial block, and one end of the control portion is disposed. There is a card slot that is engaged with the dial block.
The pipeline internal processing apparatus according to claim 8, wherein an outer circumference of the output shaft of the electric motor is provided with a first gear, and an outer circumference of the hollow shaft is provided with a second gear, the first gear and the The second gear meshes.