Pipeline grinding machine

Abstract

The invention belongs to the technical field of pipeline grinding, and discloses a pipeline grinding machine which is characterized in that a mounting seat can be mounted on the inner wall of a pipeline and can move in the extending direction of the pipeline; the first motor is arranged on the mounting seat; the grinding assembly comprises a first telescopic structure and a grinding piece, the first telescopic structure is provided with a first fixed end and a first telescopic end capable of stretching and retracting back and forth relative to the first fixed end, the first fixed end is connected with an output shaft of the first motor, the grinding piece is arranged at the first telescopic end, and the first motor can drive the grinding assembly to rotate. The mounting base moves in the extending direction of the pipeline to drive the grinding assembly to move so as to grind the pipeline in the extending direction of the pipeline, in addition, the first telescopic end can stretch out and draw back in a reciprocating mode relative to the first fixed end, so that the position of the grinding piece can be changed, and the grinding piece can adapt to pipelines with different pipe diameters; and the grinding piece can be always tightly attached to the inner wall of the pipeline, so that the grinding effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline grinding, in particular to a pipeline grinding machine. Background Art

[0002] During the shipbuilding process, a large number of piping systems need to be installed. Some of these piping systems are left in place for a long time during pre-installation in sections. Due to the influence of factors such as the shipyard environment and rain, the interior of the piping systems is prone to rust. Operators need to enter the piping systems and perform manual grinding. The problems with this are, on the one hand, low efficiency, and on the other hand, grinding away rust will generate a large amount of dust, which affects the health of the operators.

[0003] In response to this, the prior art provides a variable-diameter pipe polishing robot that can be stably installed on the inner walls of pipes of varying diameters. It features an expansion polishing assembly, which includes an airbag and long sandpaper. Once the device enters the pipe, the main airbag inflates and expands in a stacked order, simultaneously releasing the long sandpaper wrapped around it until the main airbag expands and the long sandpaper comes into close contact with the pipe's inner wall. A motor then drives the expansion polishing assembly to rotate, causing the long sandpaper to rub against the pipe's inner wall, completing the polishing operation. However, this robot suffers from a complex structure, as it uses the airbag to expand the long sandpaper, and cannot precisely control its position. Summary of the Invention

[0004] According to one aspect of the present invention, the present invention provides a pipe grinding machine to solve the problem in the prior art that the pipe grinding robot has a complex structure and cannot accurately control the position of the long sandpaper.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] Pipe grinding machine, used for grinding the inner wall of the pipe; including:

[0007] A mounting seat, capable of being mounted on the inner wall of the pipe and capable of moving along the extension direction of the pipe;

[0008] A first motor is disposed on the mounting seat;

[0009] The grinding assembly includes a first telescopic structure and a grinding plate. The first telescopic structure has a first fixed end and a first telescopic end that can reciprocate and extend relative to the first fixed end. The first fixed end is connected to the output shaft of the first motor. The grinding plate is arranged at the first telescopic end. The first motor can drive the grinding assembly to rotate so that the grinding plate grinds the inner wall of the pipe.

[0010] As a preferred solution of the pipe grinder, a plurality of the grinding assemblies are provided, and the first fixed ends of the first telescopic structures of the plurality of grinding assemblies are all fixedly connected.

[0011] As a preferred solution of the pipe grinder, the mounting seat is rotatably provided with a roller, and the roller can be in rolling contact with the inner wall of the pipe.

[0012] As a preferred solution for the pipe grinder, the mounting seat includes a base, a connecting rod and a roller mounting seat connected in sequence, the first motor is connected to the base, and there are multiple connecting rods and multiple roller mounting seats. The multiple connecting rods are arranged in a one-to-one correspondence with the multiple roller mounting seats, and the multiple roller mounting seats are all rotatably connected to the roller.

[0013] As a preferred solution for the pipe grinder, the multiple connecting rods are all telescopic rods, and have a connecting rod fixed end and a connecting rod telescopic end that can reciprocate and telescope relative to the connecting rod fixed end. The connecting rod fixed end is connected to the base, and the connecting rod telescopic end is connected to the roller mounting seat.

[0014] As a preferred solution of the pipe grinder, it also includes a second motor arranged on the mounting seat, and the second motor is used to drive the roller to rotate.

[0015] As a preferred solution for the pipe grinder, the mounting seat includes a base and a second telescopic structure arranged on the base, the second telescopic structure has a second fixed end and a second telescopic end that can reciprocate and telescope relative to the second fixed end along the extension direction of the pipe, the second fixed end is connected to the base, and the second telescopic end is connected to the first motor.

[0016] As a preferred solution of the pipe grinder, it also includes a vacuum cleaner arranged on the mounting seat, wherein the vacuum cleaner is arranged on the outer wall of the mounting seat and is used to absorb dust.

[0017] As a preferred solution of the pipe grinder, a plurality of the vacuum cleaners are provided, and the plurality of the vacuum cleaners are spaced apart on the outer wall of the mounting seat along the circumferential direction of the pipe.

[0018] As a preferred solution of the pipe grinder, a distance sensor is further included which is arranged on the mounting seat, and the distance sensor is used to obtain the distance between itself and the inner wall of the pipe.

[0019] The beneficial effects of the present invention are:

[0020] The present invention provides a pipe grinder for grinding the inner wall of a pipe, the pipe grinder comprising a mounting seat, a first motor, and a grinding assembly, wherein the mounting seat can be mounted on the inner wall of the pipe and can move along the extension direction of the pipe; the first motor is arranged on the mounting seat; the grinding assembly comprises a first telescopic structure and a grinding plate, the first telescopic structure having a first fixed end and a first telescopic end that can reciprocate and retract relative to the first fixed end, the first fixed end being connected to the output shaft of the first motor, the grinding plate being arranged at the first telescopic end, the first motor being able to drive the grinding assembly to rotate so that the grinding plate grinds the inner wall of the pipe, and the mounting seat moving along the extension direction of the pipe drives the grinding assembly to move, thereby grinding the pipe along the extension direction of the pipe. In addition, since the grinding plate is connected to the output end of the first motor via the first telescopic structure, in the first telescopic structure, the first telescopic end can reciprocate and retract relative to the first fixed end, thereby changing the position of the grinding plate along the radial direction of the pipe, so that it can adapt to pipes of different diameters, and the grinding plate can always be in close contact with the inner wall of the pipe, thereby improving the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a first structural schematic diagram of a pipe grinding machine according to an embodiment of the present invention;

[0022] Figure 2 2 is a second structural schematic diagram of the pipe grinding machine in an embodiment of the present invention.

[0023] In the picture:

[0024] 100. Pipeline;

[0025] 1. Mounting seat; 11. Base; 12. Connecting rod; 121. Connecting rod fixed end; 122. Connecting rod telescopic end; 13. Roller mounting seat; 14. Second telescopic structure; 141. Second fixed end; 142. Second telescopic end;

[0026] 2. First motor;

[0027] 3. Grinding assembly; 31. First telescopic structure; 311. First fixed end; 312. First telescopic end; 32. Grinding sheet;

[0028] 4. Roller;

[0029] 5. Distance sensor;

[0030] 6. Vacuum cleaner; 61. Dust collection tube; 62. Dust collection box;

[0031] 7. Controller;

[0032] 8. Communication module;

[0033] 9. Power supply. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0035] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0036] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0037] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0038] The interior of a pipe system is prone to rust, and operators usually need to enter the pipe system and perform manual polishing, which is inefficient. Grinding away rust also produces a large amount of dust, which affects the operator's health. To address this issue, the prior art provides a variable-diameter pipe polishing robot that can be stably installed on the inner wall of pipes of different diameters and is equipped with an expansion polishing assembly. The expansion polishing assembly includes an airbag and long sandpaper. After the device enters the pipe, the main airbag is inflated and unfolded in a stacked order. At the same time, the long sandpaper wrapped around the main airbag is released until the main airbag expands the long sandpaper and makes close contact with the inner wall of the pipe. The expansion polishing assembly is then driven by a motor to rotate, causing the long sandpaper to rub against the inner wall of the pipe to perform the polishing operation. However, the problem is that the long sandpaper is expanded by the airbag, which makes the structure complex and the position of the long sandpaper cannot be accurately controlled.

[0039] In this regard, this embodiment provides a pipe grinder to solve the problems in the prior art that the pipe grinding robot has a complex structure and cannot accurately control the position of the long sandpaper, and can be used in the field of pipe grinding technology.

[0040] Reference Figure 1-Figure 2 The pipe grinder is used to grind the inner wall of the pipe 100. The pipe grinder includes a mounting base 1, a first motor 2, and a grinding assembly 3. The mounting base 1 can be mounted on the inner wall of the pipe 100 and can move along the extension direction of the pipe 100. The first motor 2 is disposed on the mounting base 1. The grinding assembly 3 includes a first telescopic structure 31 and a grinding disc 32. The first telescopic structure 31 has a first fixed end 311 and a first telescopic end 312 that can reciprocate relative to the first fixed end 311. The first telescopic structure 31 can specifically be a hydraulic cylinder, a pneumatic cylinder, or an electric push rod capable of linear drive. The first fixed end 311 is connected to the output shaft of the first motor 2. The grinding disc 32 is disposed at the first telescopic end 312. The first motor 2 can drive the grinding assembly 3 to rotate so that the grinding disc 32 grinds the inner wall of the pipe 100. The mounting base 1 moves along the extension direction of the pipe 100, driving the grinding assembly 3 to move, thereby grinding the pipe 100 along the extension direction of the pipe 100. In addition, since the grinding sheet 32 ​​is connected to the output end of the first motor 2 through the first telescopic structure 31, in the first telescopic structure 31, the first telescopic end 312 can reciprocate and retract relative to the first fixed end 311, thereby changing the position of the grinding sheet 32 ​​along the radial direction of the pipe 100, so that it can adapt to pipes 100 of different diameters, and enable the grinding sheet 32 ​​to always be in close contact with the inner wall of the pipe 100 to improve the grinding effect.

[0041] Continue to refer to Figure 1-Figure 2The polishing assembly 3 is provided with multiple first fixed ends 311 of the first telescopic structures 31 of the multiple polishing assemblies 3, each of which is fixedly connected. This allows the polishing discs 32 of the multiple polishing assemblies 3 to abut against different locations on the inner wall of the pipe 100, thereby enhancing the polishing effect and forming multiple points of support, thereby improving the overall stability of the structure. In this embodiment, two polishing assemblies 3 are provided, and the first fixed ends 311 of the first telescopic structures 31 of the two polishing assemblies 3 are coaxially arranged.

[0042] Continue to refer to Figure 1-Figure 2 The mounting base 1 is rotatably provided with a roller 4 , which can roll in contact with the inner wall of the pipe 100 , thereby reducing the friction resistance when the pipe grinder moves along the extension direction of the pipe 100 .

[0043] Continue to refer to Figure 1-Figure 2 The specific structure of the mounting base 1 and roller 4 is as follows: the mounting base 1 includes a base 11, a connecting rod 12, and a roller mounting base 13, which are connected in sequence. The first motor 2 is connected to the base 11. There are multiple connecting rods 12 and roller mounting bases 13, and the multiple connecting rods 12 are provided in a one-to-one correspondence with the multiple roller mounting bases 13. The multiple roller mounting bases 13 are each rotatably connected to the roller 4. Thus, the first motor 2 and other structures are mounted on the base 11 in the center, while the roller mounting bases 13 and roller 4 on the outside are connected to the base 11 via the connecting rods 12. In addition, the provision of multiple connecting rods 12 and multiple roller mounting bases 13 provides multiple support points for the base 11, making the support of the mounting base 1 by the inner wall of the pipe 100 more stable. In this embodiment, the connecting rods 12 extend radially along the pipe 100.

[0044] Optionally, each roller mount 13 is rotatably connected to a plurality of rollers 4, and the plurality of rollers 4 abut against the inner wall of the pipe 100 at the same time, thereby preventing the roller mount 13 from rotating relative to the inner wall of the pipe 100 to improve the stability of the support.

[0045] Continue to refer to Figure 1-Figure 2 , multiple connecting rods 12 are all telescopic rods, and have a connecting rod fixed end 121 and a connecting rod telescopic end 122 that can reciprocate and telescope relative to the connecting rod fixed end 121. The connecting rod fixed end 121 is connected to the base 11, and the connecting rod telescopic end 122 is connected to the roller mounting seat 13, so that the distance between the base 11 and the roller mounting seat 13 can be adjusted along the radial direction of the pipe 100, so that during the operation of the pipe grinder, the roller 4 can always abut against the inner wall of the pipe 100, making the overall structure more stable. In addition, such an arrangement allows the position of the roller 4 relative to the base 11 and the position of the grinding sheet 32 ​​relative to the base 11 to be adjusted separately, so that the two can abut against the inner wall of the pipe 100 at the same time, which can adapt to different working conditions.

[0046] Continue to refer to Figure 1-Figure 2 The pipe grinder further includes a second motor disposed on the mounting base 1, the second motor being used to drive the roller 4 to rotate, thereby driving the pipe grinder as a whole to move along the extension direction of the pipe 100 through the second motor. The second motor is mounted on the roller mounting base 13.

[0047] Continue to refer to Figure 1-Figure 2 The mounting base 1 includes a base 11 and a second telescopic structure 14 arranged on the base 11. The second telescopic structure 14 has a second fixed end 141 and a second telescopic end 142 that can reciprocate and telescope relative to the second fixed end 141 along the extension direction of the pipe 100. The second fixed end 141 is connected to the base 11, and the second telescopic end 142 is connected to the first motor 2. Therefore, through the second telescopic structure 14, the position of the first motor 2 relative to the base 11 can be adjusted along the extension direction of the pipe 100, and then the position of the grinding assembly 3 relative to the base 11 can be adjusted. The relative position of the base 11 and the grinding assembly 3 can be adjusted according to actual work needs, and the flexibility is strong.

[0048] Continue to refer to Figure 1-Figure 2 The pipe grinder also includes a vacuum cleaner 6 arranged on the mounting base 1. The vacuum cleaner 6 is arranged on the outer wall of the mounting base 1 and is used to absorb dust, thereby absorbing the dust generated by the grinding pipe 100, preventing the dust from adhering to the mounting base 1 or the first motor 2 and other structures, thereby avoiding affecting the operation of the above structure. Among them, the vacuum cleaner 6 includes a dust collection pipe 61 and a dust collection box 62. The dust collection box 62 is installed on the base 11. The dust collection pipe 61 is funnel-shaped and has a large end and a small end. The large end is directly opposite the contact position between the grinding sheet 32 ​​and the pipe 100, and the small end is connected to the dust collection box 62, so that the iron filings and other dust generated by the friction between the grinding sheet 32 ​​and the inner wall of the pipe 100 pass through the large end and the small end in turn, and finally enter the dust collection box 62, and are collected by the dust collection box 62.

[0049] Continue to refer to Figure 1-Figure 2 A plurality of vacuum cleaners 6 are provided along the circumferential direction of the pipe 100, and the plurality of vacuum cleaners 6 are spaced apart on the outer wall of the mounting base 1, so that the dust generated at multiple positions along the circumferential direction of the pipe 100 can be absorbed by the plurality of vacuum cleaners 6, thereby improving the dust absorption efficiency.

[0050] Continue to refer to Figure 1-Figure 2The pipe grinder also includes a distance sensor 5 mounted on the mounting base 1. This distance sensor 5 is used to detect the distance between itself and the inner wall of the pipe 100. This distance sensor 5 can be used to adjust operating parameters such as the extension and retraction of the first telescopic structure 31, the connecting rod 12, the second telescopic structure 14, and the speed of the second motor. This in turn adjusts parameters such as the position of the grinding disc 32 relative to the first motor 2, the spacing between the roller 4 and the base 11, the distance between the first motor 2 and the base 11, and the travel speed of the pipe grinder. In this embodiment, the distance sensor 5 is specifically an infrared distance detector. In other embodiments, the distance sensor 5 can also be a laser rangefinder or other device.

[0051] Optionally, the pipe grinder further includes a controller 7, which is configured to read the distance data between the distance sensor 5 and the inner wall of the pipe 100 and to control the first telescopic structure 31, the connecting rod 12, the second telescopic structure 14, the first motor 2, and other structures. Optionally, the pipe grinder further includes a communication module 8, which is communicatively connected to the controller 7 and configured to communicate with external devices to transmit relevant information. Optionally, the pipe grinder further includes a power supply 9, which is disposed on the base 11 and electrically connected to the controller 7, the communication module 8, and other devices, thereby powering the aforementioned structures.

[0052] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A pipe grinding machine for grinding the inner wall of a pipe (100); characterized in that: include: A mounting seat (1) capable of being mounted on the inner wall of the pipe (100) and capable of moving along the extension direction of the pipe (100); A first motor (2) is arranged on the mounting seat (1); The grinding assembly (3) comprises a first telescopic structure (31) and a grinding sheet (32); the first telescopic structure (31) has a first fixed end (311) and a first telescopic end (312) capable of reciprocating and telescoping relative to the first fixed end (311); the first fixed end (311) is connected to the output shaft of the first motor (2); the grinding sheet (32) is arranged at the first telescopic end (312); the first motor (2) can drive the grinding assembly (3) to rotate, so that the grinding sheet (32) grinds the inner wall of the pipe (100).

2. The pipe grinding machine according to claim 1, characterized in that: A plurality of the polishing assemblies (3) are provided, and the first fixed ends (311) of the first telescopic structures (31) of the plurality of polishing assemblies (3) are all fixedly connected.

3. The pipe grinding machine according to claim 1, characterized in that: The mounting seat (1) is rotatably provided with a roller (4), and the roller (4) is capable of rolling contact with the inner wall of the pipe (100).

4. The pipe grinding machine according to claim 3, characterized in that: The mounting seat (1) comprises a base (11), a connecting rod (12) and a roller mounting seat (13) connected in sequence, the first motor (2) is connected to the base (11), a plurality of the connecting rods (12) and the roller mounting seat (13) are provided, the plurality of connecting rods (12) and the plurality of roller mounting seats (13) are provided in a one-to-one correspondence, and the plurality of roller mounting seats (13) are all rotatably connected to the roller (4).

5. The pipe grinding machine according to claim 4, characterized in that: The plurality of connecting rods (12) are all telescopic rods and have a connecting rod fixed end (121) and a connecting rod telescopic end (122) capable of reciprocating and telescoping relative to the connecting rod fixed end (121); the connecting rod fixed end (121) is connected to the base (11); and the connecting rod telescopic end (122) is connected to the roller mounting seat (13).

6. The pipe grinding machine according to claim 3, characterized in that: It also includes a second motor arranged on the mounting seat (1), and the second motor is used to drive the roller (4) to rotate.

7. The pipe grinding machine according to claim 1, characterized in that: The mounting seat (1) comprises a base (11) and a second telescopic structure (14) arranged on the base (11); the second telescopic structure (14) has a second fixed end (141) and a second telescopic end (142) capable of reciprocating and telescoping relative to the second fixed end (141) along the extension direction of the pipeline (100); the second fixed end (141) is connected to the base (11); and the second telescopic end (142) is connected to the first motor (2).

8. The pipe grinding machine according to any one of claims 1 to 7, characterized in that: It also includes a dust collector (6) arranged on the mounting seat (1); the dust collector (6) is arranged on the outer wall of the mounting seat (1) and is used to absorb dust.

9. The pipe grinding machine according to claim 8, characterized in that: A plurality of the vacuum cleaners (6) are provided, and along the circumferential direction of the pipe (100), the plurality of the vacuum cleaners (6) are spaced apart and arranged on the outer wall of the mounting seat (1).

10. The pipe grinding machine according to any one of claims 1 to 7, characterized in that: It also includes a distance sensor (5) arranged on the mounting seat (1), and the distance sensor (5) is used to obtain the distance between itself and the inner wall of the pipe (100).

Images