Adjustable large pipeline inner wall trimming device and trimming system

By designing an adjustable large-scale pipeline inner wall trimming device, using technical means such as telescopic structure and center-aligning slide, the problem of not being able to automatically identify the diameter and eccentricity of the pipeline inner wall in the prior art is solved, and efficient and accurate pipe inner wall trimming is achieved, which is suitable for various sites and working conditions.

CN222589056UActive Publication Date: 2025-03-11QIQIHAR ZHANRUI HEAVY MASCH EQUIP CO LTD
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Patent Information

Application Number
CN202420830668.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-19
Publication Date
2025-03-11
Estimated Expiration
2034-04-19

AI Technical Summary

Technical Problem

The prior art cannot automatically identify the diameter size and eccentricity of the inner wall of a large pipeline, resulting in incomplete repair of the inner wall of the pipeline, low operating efficiency, low accuracy, high cost, and limited applicable site.

Method used

An adjustable large pipe inner wall trimming device is designed, including an annular support frame, telescopic structure, a center-aligning slide, a rotary slide and a pneumatic grinding wheel. The extension length of the support block is adjusted through the telescopic structure to adapt to pipes of different diameters; by adjusting the center of the center and the rotating slide plate, the adjustment of the rotation center is achieved and the working conditions of the eccentricity of the inner hole is adapted.

Benefits of technology

It realizes accurate decoration of the inner wall of large pipes, and can adjust the diameter size and eccentricity of the dressing device according to actual conditions, increase the integrity of the inner wall of pipelines, is convenient to operate, has a wide range of application and is low cost.

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Abstract

The utility model relates to the technical field of machining, in particular to an adjustable finishing device and system for the inner wall of a large pipeline. The trimming device comprises a supporting frame, a trimming device body and a trimming device body, the supporting frame is in an annular shape, and a sliding groove is formed in one side of the supporting frame; the telescopic structure is arranged on the supporting frame, a supporting block is arranged at one end of the telescopic structure, and the telescopic structure drives the supporting block to move relative to the supporting frame; the self-aligning sliding plate is arranged in the sliding groove, the center shaft penetrates through a first sliding way of the self-aligning sliding plate, and the self-aligning handle is arranged on the self-aligning sliding plate; the center shaft is sleeved with the rotary sliding plate and the diameter adjusting frame, and the diameter adjusting frame is located at the end away from the aligning sliding plate; the diameter adjusting handle is arranged on the rotary sliding plate; and the pneumatic grinding wheel is arranged on the diameter adjusting frame. The trimming device does not need power distribution, is convenient to carry and is suitable for being used in various fields or working conditions; the structure is simple, cost is low, and popularization and application are easy. The diameter and eccentricity of the trimming device can be adjusted according to actual conditions, and the completeness of repairing the inner wall of the pipeline is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to an adjustable large-scale pipeline inner wall finishing device and a finishing system. Background Art

[0002] With the continuous development of my country in the fields of nuclear power, shipbuilding, oil and gas extraction and transportation, urban water supply and drainage, etc., large pipelines are being used more and more widely. During the manufacturing or connection process of large pipelines, the inner wall will have defects such as deformation or oxide scale. If they are not treated, it will leave safety hazards to the entire pipeline transportation system. Therefore, the trimming of the inner wall of the pipeline is an important part of the inner wall treatment of the pipeline.

[0003] At present, the main way to repair the inner wall of the pipeline is still manual. In the absence of special tools, the polishing equipment is manually operated for grinding. This method is limited by the operating space, has low efficiency, and cannot guarantee accuracy. It can only perform surface polishing operations, but cannot correct the roundness of the inner wall. Another method is to polish by motorized means. The disadvantage of this method is that it cannot identify the diameter and eccentricity of the inner wall of the pipeline, resulting in incomplete repair of the inner wall of the pipeline. In addition, it is expensive and has limited applicable sites, so it is difficult to promote and apply. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problem in the prior art that the diameter and eccentricity of the inner wall of the pipeline cannot be automatically identified, resulting in incomplete repair of the inner wall of the pipeline, thereby providing an adjustable large-scale pipeline inner wall trimming device and trimming system.

[0005] In order to solve the above technical problems, the utility model provides an adjustable large-scale pipeline inner wall dressing device, comprising: a support frame, the support frame is annular, and a slide groove is provided on one side of the support frame; a telescopic structure is arranged on the support frame, and a support block is provided at one end of the telescopic structure, and the telescopic structure drives the support block to move relative to the support frame; a self-aligning slide plate, which is arranged in the slide groove, and the center axis passes through the first slideway of the self-aligning slide plate, and the self-aligning handle is arranged on the self-aligning slide plate; a rotating slide plate and a diameter adjusting frame, which are sleeved on the center axis, and the diameter adjusting frame is located at one end away from the self-aligning slide plate; a diameter adjusting handle is arranged on the rotating slide plate; and a pneumatic grinding wheel is arranged on the diameter adjusting frame.

[0006] Furthermore, the telescopic structure includes a telescopic screw and a guide rod, and a rotating handle, the telescopic screw and the guide rod are both arranged on the support frame, the support block is arranged at one end of the telescopic screw and the guide rod, the rotating handle is arranged at one end of the telescopic screw, and is used to adjust the position of the support block relative to the support frame.

[0007] Furthermore, there are four telescopic screw rods and four supporting blocks.

[0008] Furthermore, it also includes a mounting plate, wherein the mounting plate is arranged on one side of the supporting frame, and the sliding groove is arranged on the mounting plate.

[0009] Furthermore, a second slideway is provided on the diameter adjusting frame, the central axis passes through the second slideway, and the diameter adjusting handle is used to adjust the extension length of the diameter adjusting frame.

[0010] Furthermore, it also includes a grinding wheel bracket, one end of which is inserted into the sliding groove of the diameter adjustment frame, and the telescopic handle and the screw rod are used to adjust the position of the grinding wheel bracket relative to the diameter adjustment frame.

[0011] Furthermore, it also includes a pressing plate, which is buckled in the sliding groove.

[0012] Furthermore, a partition is provided on the support frame, and the partition is used to support the telescopic structure.

[0013] Furthermore, the support frame is provided with casters.

[0014] The utility model also provides an adjustable large-scale pipeline inner wall trimming system, comprising the adjustable large-scale pipeline inner wall trimming device.

[0015] The technical solution of the utility model has the following advantages:

[0016] 1. The adjustable large-scale pipeline inner wall finishing device provided by the utility model comprises: a support frame, the support frame is annular, and a slide groove is provided on one side of the support frame; a telescopic structure is arranged on the support frame, and a support block is provided at one end of the telescopic structure, and the telescopic structure drives the support block to move relative to the support frame; a self-aligning slide plate is arranged in the slide groove, and the central axis passes through the first slideway of the self-aligning slide plate, and the self-aligning handle is arranged on the self-aligning slide plate; a rotating slide plate and a diameter adjusting frame are sleeved on the central axis, and the diameter adjusting frame is located at one end away from the self-aligning slide plate; the diameter adjusting handle is arranged on the rotating slide plate; and a pneumatic grinding wheel is arranged on the diameter adjusting frame.

[0017] By setting a telescopic structure on the annular support frame, the telescopic structure can be used to drive the support block to move and adjust the extension length of the support block to adapt to pipes of different diameters. At the same time, a slide groove is set on one side of the support frame, and the self-aligning slide plate can be connected to the support frame through the slide groove to form an integral part, and a first slideway is set on the self-aligning slide plate, and the center axis passes through the first slideway to achieve the connection between the center axis and the self-aligning slide plate, and then the position of the self-aligning slide plate and the center axis is adjusted by using the self-aligning handle, so that the rotation center of the dressing device can be adjusted to adapt to the working condition of the inner hole eccentricity.

[0018] The rotating slide is fixed to the central axis by pins and can rotate with the central axis. The diameter adjustment frame is installed in the rotating slide, and the diameter adjustment handle is connected to the diameter adjustment frame by a screw. Rotating the diameter adjustment handle can control the extension length of the diameter adjustment frame to adjust the diameter size; then the pneumatic grinding wheel is installed on the diameter adjustment frame, and the pneumatic grinding wheel can be used to grind the internal control of the pipeline.

[0019] The adjustable large-scale pipeline inner wall trimming device fixes the pneumatic grinding wheel on an adjustable and rotatable support frame, so that the inner wall of the pipeline can be trimmed very accurately; the adjustable large-scale pipeline inner wall trimming device does not require power distribution, is easy to carry, and is suitable for use in various sites or working conditions; the device has a simple structure, low cost, and is easy to promote and apply. In addition, the diameter and eccentricity of the trimming device can be adjusted according to actual conditions to increase the integrity of the pipeline inner wall repair.

[0020] 2. The utility model provides an adjustable large-scale pipeline inner wall trimming device, wherein the telescopic structure includes a telescopic screw and a guide rod, and a rotating handle, wherein the telescopic screw and the guide rod are both arranged on the support frame, the support block is arranged at one end of the telescopic screw and the guide rod, and the rotating handle is arranged at one end of the telescopic screw and is used to adjust the position of the support block relative to the support frame. The setting of the telescopic screw drives the support block to perform telescopic movement, thereby matching the diameters of different pipelines. Among them, the guide rod plays a supporting and guiding role, ensuring that the support block can contact the inner wall of the pipeline.

[0021] 3. The adjustable large-scale pipeline inner wall trimming device provided by the utility model also includes a mounting plate, which is arranged on one side of the support frame, and the slide groove is arranged on the mounting plate. By arranging the mounting plate on the support frame, a mounting position is provided for the mounting plate; at the same time, the slide groove arranged on the mounting plate provides a mounting position for the self-aligning slide plate.

[0022] The utility model summary is provided to introduce a selection of concepts in a simplified form, which will be further described in the following detailed description. The utility model summary is not intended to identify key features or essential features of the present disclosure, nor is it intended to limit the scope of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A front view of the adjustable large-scale pipeline inner wall finishing device provided by the utility model;

[0025] Figure 2 A cross-sectional view of the adjustable large-scale pipeline inner wall trimming device provided by the utility model;

[0026] Figure 3 The utility model provides a schematic structural diagram of the centering slide plate of the adjustable large-scale pipeline inner wall finishing device.

[0027] Description of reference numerals:

[0028] 1. Support frame; 2. Support block; 3. Telescopic screw; 4. Guide rod; 5. Rotating handle; 6. Self-aligning slide; 7. Self-aligning handle; 8. Diameter adjustment handle; 9. Center axis; 10. Diameter adjustment frame; 11. Grinding wheel bracket; 12. Pneumatic grinding wheel; 13. Pressing plate; 14. Screw; 15. Telescopic handle; 16. Caster; 17. Rotating slide; 18. Slide groove; 19. Second slide; 20. Slide groove; 21. Partition; 22. Mounting plate. DETAILED DESCRIPTION

[0029] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0030] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0032] In the present disclosure, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] The disclosure below provides many different embodiments or examples to realize different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present disclosure. In addition, the present disclosure can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present disclosure provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0034] The preferred embodiments of the present disclosure are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0035] See also Figures 1 to 3As shown, the utility model provides an adjustable large-scale pipeline inner wall dressing device, comprising: a support frame 1, the support frame 1 is annular, and a slide groove 18 is provided on one side of the support frame 1; a telescopic structure is arranged on the support frame 1, and a support block 2 is provided at one end of the telescopic structure, and the telescopic structure drives the support block 2 to move relative to the support frame 1; a self-aligning slide 6 is arranged in the slide groove 18, the center axis 9 passes through the first slideway of the self-aligning slide 6, and the self-aligning handle 7 is arranged on the self-aligning slide 6; a rotating slide 17 and a diameter adjusting frame 10 are sleeved on the center axis 9, and the diameter adjusting frame 10 is located at one end away from the self-aligning slide 6; a diameter adjusting handle 8 is arranged on the rotating slide 17; and a pneumatic grinding wheel 12 is arranged on the diameter adjusting frame 10.

[0036] By setting a telescopic structure on the annular support frame 1, the telescopic structure can be used to drive the support block 2 to move and adjust the extension length of the support block 2 to adapt to pipes of different diameters. At the same time, a slide groove 18 is set on one side of the support frame 1, and the self-aligning slide plate 6 can be connected to the support frame 1 through the slide groove 18 to form an integral part, and a first slideway is set on the self-aligning slide plate 6, and the center axis 9 passes through the first slideway to achieve the connection between the center axis 9 and the self-aligning slide plate 6, and then the self-aligning handle 7 is used to adjust the position of the self-aligning slide plate 6 and the center axis 9, so that the rotation center of the dressing device can be adjusted to adapt to the working condition of the inner hole eccentricity.

[0037] The rotating slide plate 17 is fixed to the central shaft 9 by pins and can rotate together with the central shaft 9. The diameter adjustment frame 10 is installed in the rotating slide plate 17, and the diameter adjustment handle 8 is connected to the diameter adjustment frame 10 by a screw rod 14. The diameter adjustment handle 8 can be rotated to control the extension length of the diameter adjustment frame 10 to adjust the diameter size; the pneumatic grinding wheel 12 is then installed on the diameter adjustment frame 10, and the pneumatic grinding wheel 12 can be used to grind the internal control of the pipeline.

[0038] The adjustable large-scale pipeline inner wall trimming device fixes the pneumatic grinding wheel 12 on an adjustable and rotatable support frame 1, so that the inner wall of the pipeline can be trimmed very accurately; the adjustable large-scale pipeline inner wall trimming device does not require power distribution, is easy to carry, and is suitable for use in various sites or working conditions; the device has a simple structure, low cost, and is easy to promote and apply. In addition, the diameter and eccentricity of the trimming device can be adjusted according to actual conditions to increase the integrity of the pipeline inner wall repair.

[0039] In some optional embodiments, the telescopic structure includes a telescopic screw 3, a guide rod 4, and a rotating handle 5, the telescopic screw 3 and the guide rod 4 are both arranged on the support frame 1, the support block 2 is arranged at one end of the telescopic screw 3 and the guide rod 4, the rotating handle 5 is arranged at one end of the telescopic screw 3, and is used to adjust the position of the support block 2 relative to the support frame 1.

[0040] The telescopic screw 3 is arranged to drive the support block 2 to perform telescopic movement, thereby matching different pipe diameters. The guide rod 4 plays a supporting and guiding role, ensuring that the support block 2 can contact the inner wall of the pipe.

[0041] Specifically, there are four telescopic screw rods 3 and four supporting blocks 2. The guide rods 4 are arranged on both sides of the telescopic screw rod 3, so the number of the guide rods 4 is twice the number of the telescopic screw rods 3.

[0042] The support frame 1 is provided with a partition plate 21, and the partition plate 21 is used to support the telescopic structure, that is, the partition plate 21 provides support for the telescopic screw rod 3 and the guide rod 4.

[0043] In some optional embodiments, the adjustable large-scale pipeline inner wall trimming device further includes a mounting plate 22 , wherein the mounting plate 22 is disposed on one side of the support frame 1 , and the slide groove 18 is disposed on the mounting plate 22 .

[0044] By arranging the mounting plate 22 on the supporting frame 1 , a mounting position is provided for the mounting plate 22 ; meanwhile, the slide groove 18 arranged on the mounting plate 22 provides a mounting position for the self-aligning slide plate 6 .

[0045] In some optional embodiments, the diameter adjusting frame 10 is provided with a second slideway 19 , the central axis 9 passes through the second slideway 19 , and the diameter adjusting handle 8 and the screw rod 14 are used to adjust the extension length of the diameter adjusting frame 10 .

[0046] The diameter adjustment handle 8 is connected to the diameter adjustment frame 10 through a screw rod 14. Rotating the diameter adjustment handle 8 can control the extension length of the diameter adjustment frame 10, so that the rotation diameter of the trimming device can reach the required value, so as to achieve the purpose of adjusting the correction diameter size.

[0047] In some optional embodiments, the adjustable large pipe inner wall dressing device further includes a grinding wheel bracket 11, one end of which is inserted into the sliding groove 20 of the diameter adjustment frame 10, and the telescopic handle 15 is used to adjust the position of the grinding wheel bracket 11 relative to the diameter adjustment frame 10. At the same time, it also includes a pressing plate 13, which is buckled in the sliding groove 20.

[0048] The pneumatic grinding wheel 12 is fixed under the grinding wheel bracket 11, and the screw 14 is installed on the diameter adjustment frame 10 and connected to the grinding wheel bracket 11. The position of the grinding wheel correction can be adjusted by rotating the telescopic handle 15. The grinding wheel bracket 11 can move a certain distance in the axial direction to expand the dressing range of each fixed position. After the position adjustment is completed, tighten the screws of the pressure plate 13 to fix the axial position of the grinding wheel. At this time, the grinding wheel can only rotate around the center of the central axis 9 to achieve the purpose of dressing the inner wall of the pipeline. After the local dressing is completed, operate the rotating handle 5 to retract the support block 2.

[0049] In some optional embodiments, the support frame 1 is provided with casters 16, wherein there are two casters 16 for supporting purposes.

[0050] When using the adjustable large-scale pipeline inner wall correction device, push the dressing device as a whole into the inner hole of the pipeline, rotate the telescopic handle 15 to extend the four-point support block 2 until it is tightly pressed against the inner wall of the pipeline. Connect the tail end of the pneumatic grinding wheel 12 to the air source. Rotate the diameter adjustment handle 8 to roughly determine the rotation diameter, and then rotate the centering handle 7 to determine the rotation axis. This step can be repeated several times to improve the dressing accuracy. After the adjustment is completed, the dressing operation can be carried out. During correction, the axial position of the grinding wheel bracket 11 can be adjusted by the telescopic handle 15 to adjust the dressing position. After the local dressing is completed, operate the rotating handle 5 to retract the support block 2. At this time, the caster 16 plays a supporting role, and the dressing device can be moved to the specified position by applying thrust.

[0051] The utility model also provides an adjustable large-scale pipeline inner wall trimming system, comprising the adjustable large-scale pipeline inner wall trimming device.

[0052] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. An adjustable large-scale pipeline inner wall finishing device, characterized in that: include: A support frame (1), the support frame (1) is annular, and a slide groove (18) is provided on one side of the support frame (1); A telescopic structure is arranged on the support frame (1), a support block (2) is arranged at one end of the telescopic structure, and the telescopic structure drives the support block (2) to move relative to the support frame (1); A self-aligning slide (6) is arranged in the slide groove (18), a central axis (9) passes through a first slideway of the self-aligning slide (6), and a self-aligning handle (7) is arranged on the self-aligning slide (6); A rotating slide plate (17) and a diameter adjusting frame (10) are sleeved on the central shaft (9), and the diameter adjusting frame (10) is located at an end away from the centering slide plate (6); A diameter adjustment handle (8) is arranged on the rotating slide plate (17); A pneumatic grinding wheel (12) is arranged on the diameter adjustment frame (10).

2. The adjustable large-scale pipeline inner wall trimming device according to claim 1 is characterized in that: The telescopic structure comprises a telescopic screw rod (3), a guide rod (4), and a rotating handle (5); the telescopic screw rod (3) and the guide rod (4) are both arranged on the support frame (1); the support block (2) is arranged at one end of the telescopic screw rod (3) and the guide rod (4); the rotating handle (5) is arranged at one end of the telescopic screw rod (3) and the guide rod (4) and is used to adjust the position of the support block (2) relative to the support frame (1).

3. The adjustable large-scale pipeline inner wall finishing device according to claim 2 is characterized in that: The telescopic screw rods (3) and the supporting blocks (2) are each provided with four.

4. The adjustable large-scale pipeline inner wall finishing device according to any one of claims 1 to 3, characterized in that: It also comprises a mounting plate (22), wherein the mounting plate (22) is arranged on one side of the supporting frame (1), and the sliding groove (18) is arranged on the mounting plate (22).

5. The adjustable large-scale pipeline inner wall finishing device according to claim 4 is characterized in that: The diameter adjusting frame (10) is provided with a second slideway (19), the central axis (9) passes through the second slideway (19), and the diameter adjusting handle (8) is used to adjust the extension length of the diameter adjusting frame (10).

6. The adjustable large-scale pipeline inner wall finishing device according to claim 5 is characterized in that: It also comprises a grinding wheel bracket (11), one end of which is inserted into a sliding groove (20) of the diameter adjustment frame (10), and a telescopic handle (15) and a screw rod (14) are used to adjust the position of the grinding wheel bracket (11) relative to the diameter adjustment frame (10).

7. The adjustable large-scale pipeline inner wall finishing device according to claim 6 is characterized in that: It also includes a pressing plate (13), wherein the pressing plate (13) is buckled in the sliding groove (20).

8. The adjustable large-scale pipeline inner wall finishing device according to claim 1 is characterized in that: The support frame (1) is provided with a partition (21), and the partition (21) is used to support the telescopic structure.

9. The adjustable large-scale pipeline inner wall trimming device according to claim 1, characterized in that: The supporting frame (1) is provided with casters (16).

10. An adjustable large-scale pipeline inner wall finishing system, characterized in that: The invention comprises the adjustable large-scale pipeline inner wall trimming device according to any one of claims 1 to 9.