Pipeline impact testing machine

Abstract

The utility model relates to the technical field of pipeline impact tests, and discloses a pipeline impact testing machine, which comprises a shell, the shell is mouth-shaped, a rotating structure is arranged in the shell, and an impact structure is arranged on the top surface of the shell. Through the arrangement of the rotating structure and the impact structure, the second motor drives the two-way lead screw to rotate, the sides, close to each other, of the two limiting plates make contact with the outer circle wall face of the pipeline to limit the position of the pipeline, the third motor drives the winding roller to rotate and wind the traction rope, and the traction rope pulls the impact hammer to the designated height. When the third motor cancels the driving of the winding roller, the winding roller releases the winding of the traction rope, the impact hammer freely falls to carry out an impact test on the pipeline, and when other areas of the pipeline need to be tested, the first motor drives the roller pair to rotate, and the roller pair drives the pipeline to rotate when rotating, so that the impact area is replaced, and the pipeline does not need to be manually rotated to carry out the test; the comprehensiveness and effectiveness of the pipeline impact test are improved, and the test effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline impact testing, in particular to a pipeline impact testing machine. Background Art

[0002] With the development of industry, pipelines are increasingly used in transporting fluids and gases. The strength and durability of pipelines are directly related to the safety and economy of the project. Therefore, during the production process of pipelines, workers usually cut a section of pipeline and put it into an impact testing machine for impact testing to test the strength of the pipeline.

[0003] The existing pipeline impact testing machine (authorization announcement number: CN210626234U) has at least the following disadvantages: although the above-mentioned testing machine performs impact testing by means of a free-falling impact hammer hitting the pipeline, it can only test a specific area of ​​the outer circular wall of the pipeline. When testing other areas of the pipeline, the pipeline needs to be manually rotated, which limits the comprehensiveness and effectiveness of the test, resulting in poor test results of the device. For this reason, we propose this utility model. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a pipeline impact testing machine.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A pipeline impact testing machine includes a shell, which is mouth-shaped. A rotating structure is provided inside the shell, and an impact structure is provided on the top surface of the shell. The rotating structure includes a placement plate provided inside the shell, and a mounting hole is provided on the top surface of the placement plate. Two pairs of rollers are rotatably provided inside the mounting hole, and the two pairs of rollers are arranged in parallel.

[0007] As a further solution of the present invention, a first motor is fixed to one side of the placing plate, the output end of the motor passes through one side of the placing plate and is fixed to one end of the pair of rollers located on the right side, a movable groove is provided on the top surface of the placing plate, and a bidirectional screw rod is arranged for rotation inside the movable groove, the positive and negative threads of the bidirectional screw rod are respectively threadedly connected to the limit plates, the pair of rollers are located between the two limit plates, and a second motor is fixed to the other side of the placing plate, the output end of the second motor passes through one side of the placing plate and is fixed to one end of the bidirectional screw rod.

[0008] As a further solution of the present invention, the impact structure includes a guide cylinder connected and fixed on the top surface of the shell, an impact hammer is slidingly arranged inside the guide cylinder, a traction rope is fixed on the top surface of the impact hammer, a winding roller is rotatably arranged on the top surface of the shell, a third motor is fixed on the top surface of the shell, the output end of the third motor is fixed to one end of the winding roller, and the top end of the traction rope passes through the top end of the guide cylinder and is fixed to the winding roller.

[0009] As a further solution of the present invention, sliding grooves are provided on both sides of the inner wall of the shell, and a screw is fixed inside the right sliding groove, which is threadedly connected to the placement plate. A fourth motor is fixed on the top surface of the shell, and the output end of the fourth motor passes through the top surface of the shell and is fixed to the top of the screw.

[0010] As a further solution of the present invention, a guide rod is fixed inside the sliding groove on the left side, and the guide rod is slidably inserted into the top surface of the placement plate.

[0011] As a further solution of the present invention, a sliding roller is rotatably provided on the top end of the guide cylinder, and the traction rope is in contact with the outer circumferential wall surface of the sliding roller.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The impact testing machine, through the arrangement of a rotating structure and an impact structure, has a second motor driving a bidirectional screw to rotate, causing the two limit plates, whose sides are close to each other, to contact the outer wall of the pipe to limit the position of the pipe. The third motor drives a winding roller to rotate and reel in a traction rope, which pulls the impact hammer to a specified height. The third motor then stops driving the winding roller, causing the winding roller to unwind the traction rope, and the impact hammer freely falls to perform an impact test on the pipe.

[0014] When it is necessary to test other areas of the pipeline, the first motor drives the rollers to rotate, and when the rollers rotate, the pipeline is driven to rotate, thereby changing the impact area. This eliminates the need to manually rotate the pipeline for testing, improves the comprehensiveness and effectiveness of the pipeline impact test, and ensures the test effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a pipeline impact testing machine proposed by the utility model;

[0016] Figure 2 This is a structural diagram of a pipeline impact testing machine proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the split structure of the placement plate of a pipeline impact testing machine proposed in the present invention;

[0018] Figure 4 A pipeline impact testing machine proposed in this utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0019] In the figure: 1. Shell; 2. Placement plate; 201. Mounting hole; 202. Pair of rollers; 203. Movable groove; 204. Bidirectional screw; 205. Limiting plate; 3. Guide cylinder; 301. Impact hammer; 302. Traction rope; 303. Winding roller; 4. Slide groove; 401. Screw; 5. Guide rod; 6. Slide roller. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0023] Reference Figure 1-Figure 4 A pipeline impact testing machine includes a shell 1, which is mouth-shaped. A rotating structure is provided inside the shell 1, and an impact structure is provided on the top surface of the shell 1. The rotating structure includes a placement plate 2 provided inside the shell 1, and a mounting hole 201 is provided on the top surface of the placement plate 2. Two pairs of rollers 202 are rotatably provided inside the mounting hole 201, and the two pairs of rollers 202 are provided in parallel.

[0024] In this embodiment, a first motor is fixed to one side of the placement plate 2, and the output end of the motor passes through one side of the placement plate 2 and is fixed to one end of the pair of rollers 202 located on the right side. A movable groove 203 is provided on the top surface of the placement plate 2, and a bidirectional screw rod 204 is provided for rotation inside the movable groove 203. The positive and negative threads of the bidirectional screw rod 204 are respectively threadedly connected to the limit plate 205, and the pair of rollers 202 is located between the two limit plates 205. A second motor is fixed to the other side of the placement plate 2, and the output end of the second motor passes through one side of the placement plate 2 and is fixed to one end of the bidirectional screw rod 204. Both the first motor and the second motor are motors with self-locking function.

[0025] In this embodiment, the impact structure includes a guide cylinder 3 that is connected and fixed to the top surface of the shell 1, and an impact hammer 301 is slidingly set inside the guide cylinder 3. A traction rope 302 is fixed to the top surface of the impact hammer 301, and a winding roller 303 is rotatably set on the top surface of the shell 1. A third motor is fixed to the top surface of the shell 1, and the output end of the third motor is fixed to one end of the winding roller 303. The top end of the traction rope 302 passes through the top end of the guide cylinder 3 and is fixed to the winding roller 303. The traction rope 302 is made of nylon, and the third motor is a motor without a self-locking function. Through the setting of the rotating structure and the impact structure, the staff places the test pipe between the two pairs of rollers 202 on the top surface of the placement plate 2, starts the second motor to drive the bidirectional screw rod 204 to rotate, and the bidirectional screw rod 204 drives the two limit plates 205 to approach each other, and the two limit plates 205 are relative. The side that is close to each other contacts the outer wall of the pipeline to limit the position of the pipeline, and then the third motor drives the winding roller 303 to rotate and reel in the traction rope 302. The traction rope 302 pulls the impact hammer 301 to the specified height, and the third motor cancels the drive of the winding roller 303. The winding roller 303 relaxes the winding of the traction rope 302, and the impact hammer 301 performs an impact test on the pipeline by free fall. When it is necessary to test other areas of the pipeline, the staff starts the first motor, and the first motor drives the roller 202 to rotate. When the roller 202 rotates, it drives the pipeline to rotate by fitting with the outer wall of the pipeline. The pipeline rotates at a fixed position under the limit of the two limit plates 205, thereby changing the impact area, so that there is no need to manually rotate the pipeline for testing, which improves the comprehensiveness and effectiveness of the pipeline impact test and ensures the test effect.

[0026] In this embodiment, slide grooves 4 are provided on both sides of the inner wall of the shell 1, and a screw 401 is fixed inside the right slide groove 4, which is threadedly connected to the placement plate 2. A fourth motor is fixed to the top surface of the shell 1, and the output end of the fourth motor passes through the top surface of the shell 1 and is fixed to the top of the screw 401. When it is necessary to test pipes of different diameters, the staff can drive the screw 401 to rotate by the fourth motor, thereby driving the placement plate 2 to slide in the slide groove 4, thereby realizing the lifting and lowering of the placement plate 2, and then enabling the placement plate 2 to place pipes of different diameters.

[0027] In this embodiment, a guide rod 5 is fixed inside the left slide groove 4, and the guide rod 5 is slidably inserted into the top surface of the placement plate 2. The guide rod 5 can limit and guide the placement plate 2 during lifting and lowering, thereby improving the stability of the device.

[0028] In this embodiment, a sliding roller 6 is rotatably provided at the top end of the guide cylinder 3, and the traction rope 302 is in contact with the outer cylindrical wall of the sliding roller 6. The sliding roller 6 can prevent the traction rope 302 from rubbing against the guide cylinder 3 when pulling the impact hammer 301, thereby extending the service life of the traction rope 302.

[0029] Working principle: During use, the staff places the test pipe between the two pairs of rollers 202 on the top surface of the placement plate 2, starts the second motor to drive the bidirectional screw 204 to rotate, and the bidirectional screw 204 drives the two limit plates 205 to approach each other. The side of the two limit plates 205 that are close to each other contacts the outer wall of the pipe to limit the position of the pipe, and then the third motor drives the winding roller 303 to rotate and reel in the traction rope 302. The traction rope 302 pulls the impact hammer 301 to the specified height, and the third motor cancels the drive to the winding roller 303. The winding roller 303 relaxes the winding of the traction rope 302, and the impact hammer 301 performs a free fall impact test on the pipe. When it is necessary to test other areas of the pipe, the staff starts the first motor, and the first The motor drives the rollers 202 to rotate. When the rollers 202 rotate, they drive the pipe to rotate by fitting with the outer wall of the pipe. The pipe rotates in a fixed position under the limit of the two limit plates 205 to change the impact area. When it is necessary to test pipes of different diameters, the staff can use the fourth motor to drive the screw 401 to rotate, thereby driving the placement plate 2 to slide in the slide 4, so as to realize the lifting and lowering of the placement plate 2, and then the placement plate 2 can place pipes of different diameters. The guide rod 5 can limit and guide the placement plate 2 during lifting and lowering, thereby improving the stability of the device. The sliding roller 6 can prevent the traction rope 302 from rubbing against the guide cylinder 3 when pulling the impact hammer 301, thereby extending the service life of the traction rope 302.

[0030] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A pipeline impact testing machine, comprising a housing (1), characterized in that: The shell (1) is mouth-shaped, a rotating structure is provided inside the shell (1), an impact structure is provided on the top surface of the shell (1), the rotating structure comprises a placement plate (2) provided inside the shell (1), a mounting hole (201) is provided on the top surface of the placement plate (2), two pairs of rollers (202) are rotatably provided inside the mounting hole (201), and the two pairs of rollers (202) are arranged in parallel.

2. A pipeline impact testing machine according to claim 1, characterized in that: A first motor is fixed to one side of the placement plate (2), and the output end of the motor passes through one side of the placement plate (2) and is fixed to one end of the pair of rollers (202) located on the right side. A movable groove (203) is provided on the top surface of the placement plate (2), and a bidirectional screw rod (204) is provided for rotation inside the movable groove (203). The forward and reverse threads of the bidirectional screw rod (204) are respectively threadedly connected to the limit plates (205). The pair of rollers (202) is located between the two limit plates (205). A second motor is fixed to the other side of the placement plate (2), and the output end of the second motor passes through one side of the placement plate (2) and is fixed to one end of the bidirectional screw rod (204).

3. A pipeline impact testing machine according to claim 2, characterized in that: The impact structure comprises a guide cylinder (3) connected and fixed to the top surface of the shell (1); an impact hammer (301) is slidably provided inside the guide cylinder (3); a traction rope (302) is fixed to the top surface of the impact hammer (301); a winding roller (303) is rotatably provided on the top surface of the shell (1); a third motor is fixed to the top surface of the shell (1); an output end of the third motor is fixed to one end of the winding roller (303); and the top end of the traction rope (302) passes through the top end of the guide cylinder (3) and is fixed to the winding roller (303).

4. A pipeline impact testing machine according to claim 3, characterized in that: Slide grooves (4) are provided on both sides of the inner wall of the housing (1), a screw (401) is fixed inside the right slide groove (4), and the screw (401) is threadedly connected to the placement plate (2). A fourth motor is fixed to the top surface of the housing (1), and the output end of the fourth motor passes through the top surface of the housing (1) and is fixed to the top end of the screw (401).

5. A pipeline impact testing machine according to claim 4, characterized in that: A guide rod (5) is fixed inside the sliding groove (4) on the left side, and the guide rod (5) is slidably inserted into the top surface of the placement plate (2).

6. The pipeline impact testing machine according to claim 5, characterized in that: A sliding roller (6) is rotatably provided at the top end of the guide cylinder (3), and the traction rope (302) is in contact with the outer circumferential wall surface of the sliding roller (6).

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