Polishing device for weld joint of petroleum pipeline

Abstract

The utility model relates to a petroleum pipeline welding seam polishing device which comprises a bottom plate, a fixed vertical plate and a movable vertical plate are arranged on the upper surface of the bottom plate, a first rotating disc is rotationally installed on the fixed vertical plate and connected with a driving motor, a second rotating disc is rotationally installed on the movable vertical plate, and conical bases are installed on the first rotating disc and the second rotating disc. Lug plates are arranged at the lower ends of the front side wall and the rear side wall of the movable vertical plate, a plurality of adjusting holes are symmetrically formed in the front side and the rear side of the upper surface of the bottom plate, pin shafts are inserted into the lug plates and inserted into one of the adjusting holes, a horizontal plate is arranged at the top of the fixed vertical plate, and a lead screw is installed at the bottom of the horizontal plate and connected with a lead screw motor. The bottom of a nut base of the lead screw motor is connected with a protective cover through a connecting rod, a threaded rod penetrates through the protective cover, fixing nuts are arranged on the threaded rod and located on the two sides of the protective cover, and a grinding block is fixed to the bottom of the threaded rod. The welding pipeline polishing device is higher in adaptability, more flexible and capable of polishing welding pipelines of different types.

Description

Technical Field

[0001] This utility model relates to the technical field of grinding equipment, and in particular to a grinding device for oil pipeline welds. Background Technology

[0002] When two or more stainless steel pipes are welded together, a weld seam is left. Currently, most of these weld seams can only be treated manually by grinding, which is inefficient and time-consuming. Mechanical devices are also used for grinding, but existing grinding devices have limited adjustability and cannot clamp and fix stainless steel pipes of different diameters and lengths, thus limiting their applicability. Utility Model Content

[0003] This invention aims to address the shortcomings of existing technologies by providing a device for grinding weld seams in oil pipelines.

[0004] To achieve the above objectives, this utility model adopts the following technical solution:

[0005] A grinding device for oil pipeline welds includes a base plate, a fixed vertical plate on one side of the upper surface of the base plate and a movable vertical plate on the other side, a first turntable rotatably mounted on the fixed vertical plate and connected to a drive motor, and a second turntable rotatably mounted on the movable vertical plate. Both the first and second turntables are equipped with conical seats. The two ends of the welded pipeline to be ground pass through the two conical seats. Ear plates are provided at the lower ends of the front and rear side walls of the movable vertical plate. Several adjustment holes are symmetrically provided on the front and rear sides of the upper surface of the base plate. Pins are inserted into the ear plates and are inserted into one of the adjustment holes. A horizontal plate is provided at the top of the fixed vertical plate, and a lead screw is installed at the bottom of the horizontal plate. The lead screw is connected to a lead screw motor. A protective cover is connected to the bottom of the lead screw motor's nut seat via a connecting rod. A threaded rod passes through the protective cover, and fixing nuts are provided on both sides of the threaded rod on both sides of the protective cover. A grinding block is fixed at the bottom of the threaded rod.

[0006] A connecting plate is provided on one side of the conical seat, and the connecting plate can be detachably installed on the first turntable or the second turntable by bolts.

[0007] The upper surface of the base plate is provided with an inverted T-shaped slide rail, and the bottom of the movable upright plate is provided with an inverted T-shaped slider, which is set inside the inverted T-shaped slide rail.

[0008] The protective cover is connected to a negative pressure suction pipe.

[0009] The advantages of this utility model are: it has higher adaptability and is more flexible, and can perform grinding operations on different types of welded pipes. Attached Figure Description

[0010] Figure 1 This is a structural schematic diagram of the present invention from one direction;

[0011] Figure 2 This is a schematic diagram of the structure of this utility model from another direction;

[0012] In the diagram: 1-Base plate; 2-Fixed upright plate; 3-Moving upright plate; 4-First turntable; 5-Drive motor; 6-Second turntable; 7-Conical seat; 8-Welded pipe; 9-Ear plate; 10-Adjusting hole; 11-Pin shaft; 12-Horizontal plate; 13-Lead screw; 14-Lead screw motor; 15-Lead screw nut; 16-Connecting rod; 17-Protective cover; 18-Threaded rod; 19-Fixing nut; 20-Grinding block; 21-Connecting plate; 22-Bolt; 23-Inverted T-shaped slide rail; 24-Inverted T-shaped slider; 25-Negative pressure suction pipe;

[0013] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0014] The principles and features of this utility model are described below with reference to the accompanying drawings. The embodiments described are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0015] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] like Figures 1 to 2As shown, an oil pipeline weld grinding device includes a base plate 1, a fixed vertical plate 2, a movable vertical plate 3, a first turntable 4, a drive motor 5, a second turntable 6, a conical seat 7, an ear plate 9, an adjustment hole 10, a pin shaft 11, a horizontal plate 12, a lead screw 13, a lead screw motor 14, a lead screw nut seat 15, a connecting rod 16, a protective cover 17, a threaded rod 18, a fixing nut 19, a grinding block 20, a connecting plate 21, a bolt 22, an inverted T-shaped slide rail 23, an inverted T-shaped slider 24, and a negative pressure suction pipe 25.

[0019] A fixed upright plate 2 is provided on one side of the upper surface of the base plate 1, and a movable upright plate 3 is provided on the other side. A first turntable 4 is rotatably mounted on the fixed upright plate 2, and the first turntable 4 is connected to a drive motor 5. A second turntable 6 is rotatably mounted on the movable upright plate 3. Conical seats 7 are installed on both the first turntable 4 and the second turntable 6. The two ends of the welded pipe 8 to be ground pass through the two conical seats 7. Ear plates 9 are provided at the lower ends of the front and rear side walls of the movable upright plate 3. Several adjustment holes 10 are symmetrically provided on the front and rear sides of the upper surface of the base plate 1. A pin 11 is inserted into the ear plate 9 and the pin 11 is inserted into one of the adjustment holes 10. A horizontal plate 12 is provided on the top of the fixed upright plate 2. A lead screw 13 is installed at the bottom of the horizontal plate 12. The lead screw 13 is connected to a lead screw motor 14. The bottom of the lead screw motor 14's lead screw nut 15 is connected to a protective cover 17 through a connecting rod 16. A threaded rod 18 is provided on the protective cover 17. A fixing nut 19 is provided on both sides of the protective cover 17 on the threaded rod 18. A grinding block 20 is fixed at the bottom of the threaded rod 18.

[0020] The protective cover 17 is connected to a negative pressure suction pipe 25.

[0021] This invention utilizes two conical seats 7 to clamp welded pipes 8 of different diameters. Simultaneously, the movable vertical plate 3 can adjust the distance between itself and the fixed vertical plate 2, thus accommodating welded pipes 8 of greater length. The specific position of the grinding block 20 can be adjusted to determine the weld seam location of the clamped welded pipe 8, and the distance between the grinding block 20 and the weld seam of the welded pipe 8 can also be adjusted. This invention offers higher adaptability and greater flexibility, enabling grinding operations on different types of welded pipes 8.

[0022] The waste generated during grinding can be drawn into a special collection device through a negative pressure suction pipe 25.

[0023] A connecting plate 21 is provided on one side of the conical seat 7. The connecting plate 21 can be detachably mounted on the first turntable 4 or the second turntable 6 by bolts 22. A more suitable conical seat 7 can be replaced as needed to broaden its application range.

[0024] The upper surface of the base plate 1 is provided with an inverted T-shaped slide rail 23, and the bottom of the movable upright plate 3 is provided with an inverted T-shaped slider 24, which is located inside the inverted T-shaped slide rail 23.

[0025] A movable handle is provided on one side of the movable upright plate 3.

[0026] Specifically, the horizontal plate 12 and the fixed vertical plate 2 are an integral structure.

[0027] Specifically, the horizontal plate 12 is detachably mounted on top of the fixed vertical plate 2 via fasteners.

[0028] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A device for grinding weld seams in oil pipelines, characterized in that, Includes a base plate (1), a fixed upright plate (2) on one side of the upper surface of the base plate (1) and a movable upright plate (3) on the other side, a first turntable (4) is rotatably mounted on the fixed upright plate (2), the first turntable (4) is connected to a drive motor (5), a second turntable (6) is rotatably mounted on the movable upright plate (3), and conical seats (7) are mounted on both the first turntable (4) and the second turntable (6). The two ends of the welded pipe (8) to be ground are inserted through the two conical seats (7). Ear plates (9) are provided at the lower ends of the front and rear side walls of the movable upright plate (3). Several adjustment holes (10) are symmetrically provided on the front and rear sides of the upper surface of the base plate (1). A pin (11) is inserted into the ear plate (9) and the pin (11) is inserted into one of the adjustment holes (10). A horizontal plate (12) is provided on the top of the fixed upright plate (2). A lead screw (13) is installed at the bottom of the horizontal plate (12). The lead screw (13) is connected to a lead screw motor (14). The lead screw motor (14) has a lead screw nut (15) connected to a protective cover (17) at the bottom through a connecting rod (16). A threaded rod (18) is provided on the protective cover (17). A fixing nut (19) is provided on both sides of the protective cover (17) on the threaded rod (18). A grinding block (20) is fixed at the bottom of the threaded rod (18).

2. The oil pipeline weld grinding device according to claim 1, characterized in that, A connecting plate (21) is provided on one side of the conical seat (7). The connecting plate (21) can be detachably installed on the first turntable (4) or the second turntable (6) by bolts (22).

3. The oil pipeline weld grinding device according to claim 2, characterized in that, The upper surface of the base plate (1) is provided with an inverted T-shaped slide rail (23), and the bottom of the movable upright plate (3) is provided with an inverted T-shaped slider (24), which is set inside the inverted T-shaped slide rail (23).

4. The oil pipeline weld grinding device according to claim 3, characterized in that, The protective cover (17) is connected to a negative pressure suction pipe (25).

5. The oil pipeline weld grinding device according to claim 4, characterized in that, A movable handle is provided on one side of the movable upright plate (3).

6. The oil pipeline weld grinding device according to claim 5, characterized in that, The horizontal plate (12) and the fixed vertical plate (2) are an integral structure.

7. The oil pipeline weld grinding device according to claim 5, characterized in that, The horizontal plate (12) is detachably mounted on top of the fixed vertical plate (2) by means of fasteners.

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