Polishing device for in-service petroleum conveying pipeline

Abstract

The utility model relates to the technical field of conveying pipeline maintenance, in particular to an in-service petroleum conveying pipeline polishing device which comprises a polishing frame and an angle grinder. According to the polishing device, the polishing frame is rotationally arranged on the conveying pipeline in a sleeving mode, the angle grinder is fixedly installed in the polishing frame, and the outer surface of the conveying pipeline is polished through the angle grinder; wherein the polishing frame is square, the size of the polishing frame can be adjusted, so that the polishing frame can be conveniently used for conveying pipelines with different diameter specifications, in addition, a plurality of angle grinders are fixed on the polishing frame, dead-corner-free polishing of the conveying pipelines can be achieved, and meanwhile, rollers and a protective cover are arranged, so that the polishing device can conveniently move on the conveying pipelines, and the polishing efficiency is improved. And the use safety can be well ensured. The conveying pipeline grinding device is easy and convenient to use, conveying pipelines of different diameter specifications can be conveniently used in the using process, meanwhile, dead-corner-free grinding of the conveying pipelines can be achieved, grinding efficiency and quality are effectively improved, and the conveying pipeline grinding device plays a positive and beneficial role in maintenance of the conveying pipelines.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline maintenance, in particular to a grinding device for an in-service petroleum pipeline. Background Art

[0002] In order to ensure the stability of the use of oil pipelines, regular maintenance is required during the use of the pipelines, such as anti-corrosion, repair and reinforcement. Since in actual operation, there will be dirt on the outer surface of the pipeline, such as stains or rust stains, the outer surface of the pipeline needs to be cleaned during pipeline maintenance to avoid the dirt on the outer surface of the pipeline covering defects and affecting the maintenance effect, thereby ensuring the stable use of the pipeline and eliminating safety hazards.

[0003] Currently, angle grinders are generally used to grind the outer surface of the conveying pipe. In the past, most of the actual operations were manual. In actual operations, on the one hand, the efficiency was relatively low. On the other hand, it was often time-consuming and labor-intensive to grind the lower side of the conveying pipe. At the same time, it was easy to have dead corners in the grinding, which brought inconvenience to the actual operation and also posed certain safety hazards.

[0004] Therefore, a conveying pipeline grinding device that can, in actual use, ensure grinding efficiency while also grinding the conveying pipeline without dead angles, thereby facilitating pipeline maintenance work, is an existing problem that needs to be solved urgently. Utility Model Content

[0005] The purpose of this utility model is to address the deficiencies of the above-mentioned prior art and provide an in-service oil pipeline grinding device to achieve fast, efficient and dead-angle-free grinding of the pipeline, thereby accurately and efficiently carrying out pipeline maintenance work.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: a grinding device for an in-service oil pipeline, comprising a grinding frame and an angle grinder; the grinding frame is rotatably sleeved on the outside of the pipeline, and the angle grinder is fixedly mounted on the grinding frame, and the angle grinder contacts the outer surface of the pipeline.

[0007] Furthermore, the grinding frame is square in shape and is composed of a first support rod, a second support rod and a third support rod connected to each other. There are four first support rods, four second support rods and four third support rods. The first support rods are the four edges of the square grinding frame. The second support rods and the third support rods are used to connect the edges of the first support rods, wherein the corresponding group is the second support rod and the other group is the third support rod. The angle grinder is installed on the second support rod and / or the third support rod.

[0008] Furthermore, the second support rod and the third support rod are both provided with rollers, and the rollers are in contact with the surface of the conveying pipe.

[0009] Furthermore, the second support rod and the third support rod are both screws, and both ends of the second support rod and the third support rod are adjustably fixedly connected to the first support rod through nuts.

[0010] Furthermore, two angle grinders are provided, which are respectively mounted on the third bracket rods on the corresponding two sides of the grinding frame.

[0011] Furthermore, the angle grinder is connected to one of the third support rods on both sides through a mounting frame, a mounting plate is provided in the mounting frame, a connecting part is provided below the mounting plate, the connecting part is inserted and sleeved on the third support rod, the two sides of the connecting part are fixed by nuts, and the angle grinder is fixed on the mounting plate by a U-shaped clamp.

[0012] Furthermore, a connecting hole is provided on the first support rod, and a spring is connected through the connecting hole, and the spring presses the front end of the angle grinder.

[0013] Furthermore, a protective cover is provided around the grinding frame.

[0014] Furthermore, the protective cover is detachably fixedly connected to the first bracket rod, and the protective cover corresponds to the direction of sparks splashing during the rotation of the angle grinder.

[0015] Beneficial effects of the utility model:

[0016] 1. The size of the grinding frame of this utility model is adjustable, so it is convenient to use with conveying pipes of different specifications, which is more convenient to use and more practical;

[0017] 2. The utility model is provided with rollers in the grinding frame, so that the grinding frame can be easily moved on the conveying pipe, which is more labor-saving, stable and convenient to use;

[0018] 3. The utility model can be provided with multiple angle grinders, which solves the existing problem of inconvenience in grinding the lower side of the conveying pipe, making grinding without dead angles and more efficient;

[0019] 4. In the present invention, the front end of the angle grinder is pressed against the surface of the conveying pipe by a spring, thereby ensuring stability during use and helping to ensure grinding efficiency and quality;

[0020] 5. A protective cover is provided around the grinding frame of the utility model, which can effectively ensure safety during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a schematic diagram of the utility model in use;

[0022] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 3 It is a schematic diagram of the installation structure of the angle grinder of the present utility model.

[0024] The names corresponding to the marks in the figure are:

[0025] 1. Grinding frame; 11. First support rod; 111. Connecting hole; 12. Second support rod; 121. First roller; 13. Third support rod; 131. Second roller; 14. Mounting frame; 141. Mounting plate; 142. Connecting portion; 143. U-shaped clamp; 15. Spring; 16. Protective cover; 2. Angle grinder; 3. Delivery pipe. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field fall within the scope of protection of the present invention.

[0027] Embodiments of the present utility model:

[0028] like Figure 1-3 As shown, in this embodiment, the grinding device includes a grinding frame 1 and an angle grinder 2. The angle grinder 2 is fixedly mounted on the grinding frame 1. The grinding device is sleeved on the conveying pipe 3. The angle grinder 2 is used to grind the surface of the conveying pipe 3.

[0029] In this embodiment, the grinding frame 1 is square in shape and can be manually rotated around the conveying pipe 3 , thereby achieving grinding of the conveying pipe 3 without any dead angles.

[0030] In this embodiment, the grinding frame 1 is composed of a first support rod 11, a second support rod 12 and a third support rod 13 connected to each other, wherein there are four first support rods 11, four second support rods 12 and four third support rods 13; the first support rod 11 is the four edges of the square grinding frame 1, and the second support rod 12 and the third support rod 13 respectively connect the edges of each first support rod 11 together, wherein the angle grinder 2 is installed on the second support rod 12 and / or the third support rod 13.

[0031] In another embodiment of the present invention, the second support rod 12 and the third support rod 13 are both screws, and their two ends are connected to the first support rod 11 respectively through nuts, so that the size of the square grinding frame 1 can be adjusted to adapt to the use of conveying pipes 3 of different diameters.

[0032] In another embodiment of the present invention, rollers are provided on the second bracket rod 12 and the third bracket. In this embodiment, a first roller 121 is provided on the second bracket rod 12, and a second roller 131 is provided on the third bracket rod 13. The first roller 121 and the second roller 131 are in contact with the surface of the conveying pipe 3, so as to facilitate the grinding device to move back and forth on the conveying pipe 3.

[0033] In another embodiment of the present invention, the angle grinder 2 is fixedly mounted on the third support rod 13 .

[0034] In this embodiment, there are two angle grinders 2, which are respectively installed on the third bracket rods 13 on the upper and lower sides of the square grinding frame 1. Since there are two third bracket rods 13 on the upper and lower sides, one of them is fixedly installed on the mounting frame 14 to fix the angle grinder 2. By installing the corresponding two angle grinders 2, on the one hand, the grinding efficiency is improved, and on the other hand, it is also convenient to grind the lower side of the conveying pipe 3 without dead angles.

[0035] In this embodiment, the mounting frame 14 includes a mounting plate 141, and a connecting portion 142 is provided below the mounting plate 141. The connecting portion 142 is inserted and sleeved with the third support rod 13. In this embodiment, the first support rod 11 is also a screw, and the two sides of the connecting portion 142 are limited and fixed by nuts. In this embodiment, two connecting portions 142 are provided, and the second roller 131 is provided between the two connecting portions 142; the angle grinder 2 is fixedly connected to the mounting plate 141 through a U-shaped clamp 143, and the U-shaped clamp 143 and the mounting plate 141 are fastened by bolts. In this embodiment, in order to facilitate installation, the second roller 131 and the first roller 121 have different shapes, but the functions are the same.

[0036] In this embodiment, a connecting hole 111 is provided at the front end of the first bracket rod 11, and a spring 15 is connected through the connecting hole 111. The spring 15 is pressed above the front end of the angle grinder 2. The spring 15 provides a downward force to make the angle grinder 2 in close contact with the surface of the conveying pipe 3, thereby ensuring the stability of use and the grinding effect.

[0037] In another embodiment of the present invention, a protective cover 16 is provided around the grinding frame 1. In this embodiment, the protective cover 16 is provided on both sides of the first bracket rod 11 and is detachably fixedly connected to the first bracket rod 11. In this embodiment, two protective covers 16 are provided, each corresponding to the direction of sparks splashing during the rotation of the angle grinder 2.

[0038] The principle of this utility model is:

[0039] When the present invention is in use, the grinding frame 1 is assembled in advance and sleeved on the conveying pipe 3. At this time, the nuts on both sides of the second support rod 12 and the third support rod 13 are screwed so that the grinding frame 1 is just stably sleeved on the conveying pipe 3.

[0040] At this time, the power of the angle grinder 2 can be turned on to grind the conveying pipe 3. Manual rotation is used during the process. Since the angle grinder 2 is provided with two corresponding ones, the conveying pipe 3 can be ground without dead angles. In addition, the roller facilitates movement on the conveying pipe 3, making it more convenient to use.

[0041] In order to ensure the stability of use, a spring 15 is used to press the front end of the angle grinder 2 so that the angle grinder 2 is in full contact with the surface of the conveying pipe 3 to ensure the grinding effect. In addition, in order to ensure the safety of use, a protective cover 16 is provided to avoid safety hazards caused by residues and sparks during the grinding process.

Claims

1. A grinding device for an in-service oil pipeline, characterized by: It comprises a grinding frame (1) and an angle grinder (2); the grinding frame (1) is rotatably sleeved on the outside of the conveying pipe (3), and the angle grinder (2) is fixedly mounted on the grinding frame (1), and the angle grinder (2) is in contact with the outer surface of the conveying pipe (3); The grinding frame (1) is square-shaped and is composed of a first support rod (11), a second support rod (12) and a third support rod (13) connected to each other. There are four first support rods (11), four second support rods (12) and four third support rods (13). The first support rods (11) are the four edges of the square grinding frame (1). The second support rods (12) and the third support rods (13) are used to connect the edges of the first support rods (11). One corresponding group is the second support rod (12) and the other group is the third support rod (13). The angle grinder (2) is installed on the second support rod (12) and / or the third support rod (13). The second support rod (12) and the third support rod (13) are both provided with rollers, and the rollers are in contact with the surface of the conveying pipe (3); The second support rod (12) and the third support rod (13) are both screws, and both ends of the second support rod (12) and the third support rod (13) are adjustably fixedly connected to the first support rod (11) through nuts.

2. The grinding device for an in-service oil pipeline according to claim 1, characterized in that: Two angle grinders (2) are provided, which are respectively mounted on the third support rods (13) on the corresponding two sides of the grinding frame (1).

3. The grinding device for an in-service oil pipeline according to claim 2, characterized in that: The angle grinder (2) is connected to one of the third support rods (13) on both sides via a mounting frame (14); a mounting plate (141) is provided in the mounting frame (14); a connecting portion (142) is provided below the mounting plate (141); the connecting portion (142) is inserted and sleeved on the third support rod (13); both sides of the connecting portion (142) are fixed by nuts; and the angle grinder (2) is fixedly mounted on the mounting plate (141) via a U-shaped clamp (143).

4. The grinding device for an in-service oil pipeline according to claim 3, characterized in that: The first support rod (11) is provided with a connection hole (111), and a spring (15) is connected through the connection hole (111), and the spring (15) presses on the front end of the angle grinder (2).

5. The grinding device for an in-service oil pipeline according to claim 1, characterized in that: A protective cover (16) is provided around the grinding frame (1).

6. The grinding device for an in-service oil pipeline according to claim 5, characterized in that: The protective cover (16) is detachably fixedly connected to the first bracket rod (11), and the protective cover (16) corresponds to the direction of sparks splashing during the rotation of the angle grinder (2).

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