Auxiliary device for nondestructive testing of metal pipe

Abstract

The utility model discloses an auxiliary device for nondestructive testing of metal pipes, which relates to the technical field of nondestructive testing of pipes and comprises a mounting main frame, a tightening belt is arranged below the mounting main frame, and an instrument mounting groove penetrating up and down is formed in the center of the mounting main frame. Vertical through grooves are formed in the positions, located on the left side and the right side of the instrument mounting groove, of the bottom face of the mounting main frame, the two ends of the tightening belt slidably penetrate through the interiors of the two vertical through grooves correspondingly, a plurality of auxiliary frames are arranged below the mounting main frame, and each auxiliary frame is slidably connected to the outer surface of the tightening belt in a sleeving mode; according to the auxiliary device for nondestructive testing of the metal pipe, the tightening belt, the winding wheel and the auxiliary frames are arranged, the number of the auxiliary frames connected to the surface of the tightening belt in a sleeving mode is adjusted according to the diameters of different pipes, the winding wheel is rotated to wind and tighten the tightening belt, the multiple auxiliary frames and the mounting main frame are made to make contact with the surface of a pipeline, and meanwhile the tightening belt is tightened; and the detection structure can stably detect the pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of nondestructive testing of pipes, in particular to an auxiliary device for nondestructive testing of metal pipes. Background Art

[0002] Nondestructive testing is an effective tool that is indispensable for industrial development. It uses the acoustic, optical, magnetic and electrical properties of materials to detect whether the object being tested has defects or unevenness without damaging its performance, and provides information such as the size, location, nature and quantity of the defects.

[0003] Nondestructive testing of metal pipes is often used in situations such as testing whether products are qualified and testing whether metal pipes in long-term use are damaged. Some metal pipes have large diameters and require auxiliary devices to support the testing instruments during testing. However, the diameter of metal pipes varies greatly. Although the existing auxiliary devices can adjust the size, the adjustment range is small and the applicability is low. Therefore, an auxiliary device for nondestructive testing of metal pipes is proposed, which can be adjusted and installed according to the large range of diameter changes of metal pipes. Utility Model Content

[0004] In view of the problem that although the above-mentioned existing auxiliary devices can be adjusted in size, the adjustment range is small and the applicability is low, the present utility model is proposed.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an auxiliary device for non-destructive testing of metal pipes, which includes a main mounting frame, a tightening belt is arranged below the main mounting frame, an instrument mounting groove which runs through from top to bottom is opened in the central part of the main mounting frame, vertical through grooves are opened on the bottom surface of the main mounting frame and on the left and right sides of the instrument mounting groove, and the two ends of the tightening belt slide through the inside of the two vertical through grooves respectively, a plurality of auxiliary frames are arranged below the main mounting frame, each auxiliary frame is slidably sleeved on the outer surface of the tightening belt, the upper left end of the tightening belt is connected to the main mounting frame by a connecting structure, and a long axis is arranged above the vertical through groove on the right side, and the long axis is connected to the main mounting frame. The upper end is rotatably connected, and a winding wheel is fixedly sleeved on the outer surface of the long shaft and located above the tightening band. The upper right end of the tightening band is connected to the outer ring surface of the winding wheel by multiple bolts. The front of the main mounting frame is fixedly connected to a power winding structure, and the front end of the long shaft is connected to the power winding structure. The left and right ends of the main mounting frame are rotatably connected with inner rods, and both ends of each inner rod are rotatably sleeved with contact wheels, which are rotatably connected to the main mounting frame. The tightening band is located between the four contact wheels, and the two inner rods are located on the inner side of the tightening band. An electric motor A is fixedly installed on the front of the main mounting frame, and the outer ring surfaces of the two contact wheels on the right side are meshed with gears, and the two gears are fixedly sleeved on the output end of the motor A.

[0006] Preferably, the power winding structure includes a motor B, a worm and a worm wheel, the worm is meshed with the worm wheel, the motor B is fixedly connected to the front side of the mounting main frame, the lower end of the worm is fixedly connected to the output end of the motor B, and the worm wheel is fixedly sleeved on the front end of the long shaft.

[0007] Preferably, both ends of the auxiliary frame are rotatably connected with rollers, one end of the auxiliary frame close to the inner side of the tightening belt is arc-shaped, and one end of the main mounting frame close to the inner side of the tightening belt is arc-shaped.

[0008] Preferably, the connecting structure includes a multi-rod frame and a tensioning telescopic rod, the two ends of the tensioning telescopic rod are respectively fixedly connected to the left end of the multi-rod frame and the left side of the installation main frame, the right end of the multi-rod frame is slidably inserted into the left side of the installation main frame, the right end of the multi-rod frame is a plurality of rod-like structures, and the upper left end of the tightening belt is slidably sleeved on the outer surface of the rod-like structure of the multi-rod frame.

[0009] Preferably, the outer ring surfaces of the two contact wheels located on the right side are both provided with tooth ring grooves, and the two gears are respectively meshed with the two tooth ring grooves.

[0010] Preferably, a pressure plate is slidably inserted into the inner side of the auxiliary frame, and the pressure plate is located on the outside of the tightening belt. A movable frame is slidably inserted into the outer side of the auxiliary frame. One end of the movable frame located outside the auxiliary frame is fixedly connected to a clamping telescopic rod, and the other end of the clamping telescopic rod is fixedly connected to the auxiliary frame. The end of the movable frame located inside the auxiliary frame is fixedly connected to the pressure plate.

[0011] Preferably, the bottom surface of the main mounting frame and the parts respectively located below the two vertical through slots are rotatably connected with steering wheels, and the steering wheels are in rolling contact with the outer annular surface of the tightening belt.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting a tightening belt, a winding wheel and an auxiliary frame, the number of auxiliary frames sleeved on the surface of the tightening belt is adjusted according to different pipe diameters, and then the two ends of the tightening belt are fixed to the installation main frame and the winding wheel respectively, so that the pipe is located inside the tightening belt, and the winding wheel is rotated to wind and tighten the tightening belt, so that multiple auxiliary frames and the installation main frame are in contact with the pipe surface, and the tightening belt is tightened at the same time, so that the detection structure can stably detect the pipe.

[0014] 2. By setting a pressing plate, a movable frame and a tightening telescopic rod, after the telescopic belt passes through the auxiliary frame, the tightening telescopic rod drives the pressing plate to tighten the tightening belt by pulling the movable frame, so that when the tightening belt rotates around the pipe, the tightening belt will not be dislocated relative to the auxiliary frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection between the auxiliary frame and the tightening belt of the utility model;

[0018] Figure 3 For this utility model Figure 2 A schematic diagram of the structure enlargement in the middle;

[0019] Figure 4 It is a schematic diagram of the partial structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the power winding structure of the utility model;

[0021] Figure 6 It is a schematic diagram of the connection between the multi-rod frame and the tension telescopic rod of the utility model.

[0022] Description of reference numerals:

[0023] 1. Install the main frame; 2. Tighten the belt; 3. Instrument installation slot; 4. Connecting structure; 401. Multi-rod frame; 402. Tension telescopic rod; 5. Power winding structure; 501. Motor B; 502. Worm; 503. Worm wheel; 6. Vertical through slot; 7. Auxiliary frame; 8. Long shaft; 9. Winding wheel; 10. Inner rod; 11. Contact wheel; 12. Motor A; 13. Gear; 14. Drum; 15. Tooth ring groove; 16. Pressure plate; 17. Movable frame; 18. Press telescopic rod; 19. Steering wheel. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] Reference Figure 1-6, which is an embodiment of the utility model, provides an auxiliary device for non-destructive testing of metal pipes, the auxiliary device for non-destructive testing of metal pipes includes an installation main frame 1, a tightening belt 2 is arranged below the installation main frame 1, an instrument installation groove 3 which runs through from top to bottom is opened at the central part of the installation main frame 1, and the detection instrument is installed in the instrument installation groove 3, and vertical through grooves 6 are opened on the bottom surface of the installation main frame 1 and on the left and right sides of the instrument installation groove 3, and the two ends of the tightening belt 2 slide through the inside of the two vertical through grooves 6 respectively, and the bottom surface of the installation main frame 1 and the two vertical through grooves 6 are respectively connected with steering wheels 19 which are rotatably connected, and the steering wheel 19 is in rolling contact with the outer annular surface of the tightening belt 2, and the steering wheel 19 limits the moving path of the tightening belt 2 and reduces the wear between the tightening belt 2 and the vertical through groove 6, and a plurality of auxiliary frames 7 are arranged below the installation main frame 1, and the number of the auxiliary frames 7 is changed according to the different diameters of the pipelines to be detected, and each auxiliary frame 7 is provided. The auxiliary frames 7 are all slidably sleeved on the outer surface of the tightening belt 2, and both ends of the auxiliary frame 7 are rotatably connected with rollers 14. The end of the auxiliary frame 7 close to the inner side of the tightening belt 2 is arc-shaped, and the end of the main frame 1 close to the inner side of the tightening belt 2 is arc-shaped. When the auxiliary frame 7 moves relative to the pipe, the roller 14 rolls on the surface of the pipe to improve the smoothness of the auxiliary frame 7 when moving. The inner side of the auxiliary frame 7 is slidably inserted with a pressure plate 16, and the pressure plate 16 is located on the outer side of the tightening belt 2. The outer side of the auxiliary frame 7 is slidably inserted with a movable frame 17, and the end of the movable frame 17 located outside the auxiliary frame 7 is fixedly connected with a tightening telescopic rod 18, and the other end of the tightening telescopic rod 18 is fixedly connected to the auxiliary frame 7, and the end of the movable frame 17 located inside the auxiliary frame 7 is fixedly connected with the pressure plate 16. The tightening telescopic rod 18 drives the pressure plate 16 to tighten the tightening belt 2 by pulling the movable frame 17, which effectively prevents the tightening belt 2 from being misaligned with the auxiliary frame 7 when rotating around the pipe.

[0026] The upper left end of the tightening belt 2 is connected to the installation main frame 1 through a connecting structure 4, and the connecting structure 4 includes a multi-rod frame 401 and a tensioning telescopic rod 402. The two ends of the tensioning telescopic rod 402 are respectively fixedly connected to the left end of the multi-rod frame 401 and the left side of the installation main frame 1, and the right end of the multi-rod frame 401 is slidably inserted into the left side of the installation main frame 1. The right end of the multi-rod frame 401 is a plurality of rod-like structures. The upper left end of the tightening belt 2 is slidably sleeved on the outer surface of the rod-like structure of the multi-rod frame 401. By inserting the multi-rod frame 401 into the upper left end of the tightening belt 2, the tightening belt 2 can be quickly connected to the installation main frame 1. When it needs to be sleeved on the pipe, it only needs to be tightened. The tightening belt 2 is separated from the main mounting frame 1 and passes around the pipe and then is reconnected to the main mounting frame 1 so that the pipe is located on the inner side of the tightening belt 2. A long shaft 8 is arranged above the vertical through groove 6 on the right side. The long shaft 8 is rotatably connected to the upper end of the main mounting frame 1. A winding wheel 9 is fixedly sleeved on the outer surface of the long shaft 8 and located above the tightening belt 2. The upper right end of the tightening belt 2 is connected to the outer annular surface of the winding wheel 9 by multiple bolts. A power winding structure 5 is fixedly connected to the front side of the main mounting frame 1. The front end of the long shaft 8 is connected to the power winding structure 5. The power winding structure 5 includes an electric motor B501, a worm 502 and a worm wheel 503. The worm 502 is meshed with the worm wheel 503. The motor B501 is fixedly connected to the front of the main mounting frame 1, the lower end of the worm 502 is fixedly connected to the output end of the motor B501, the worm wheel 503 is fixedly sleeved on the front end of the long shaft 8, and rotates around the wheel 9 to gradually wrap the tightening belt 2, tighten the tightening belt 2, so that multiple auxiliary frames 7 and the main mounting frame 1 are in contact with the surface of the pipeline, and at the same time, the tightening belt 2 is tightened, so that the detection instrument can detect the pipe. The left and right ends of the main mounting frame 1 are rotatably connected with the inner rod 10, and the two ends of each inner rod 10 are rotatably sleeved with a contact wheel 11, and the contact wheel 11 is rotatably connected to the main mounting frame 1, and the main mounting frame 1 is in contact with the pipe through the contact wheel 11. The tightening belt 2 is located between the four contact wheels 11, and the two inner rods 10 are located on the inner side of the tightening belt 2. The front of the main frame 1 is fixedly installed with a motor A12. The outer ring surfaces of the two contact wheels 11 on the right are meshed with gears 13. The two gears 13 are fixedly sleeved on the output end of the motor A12. The outer ring surfaces of the two contact wheels 11 on the right are provided with tooth ring grooves 15. The two gears 13 are respectively meshed with the two tooth ring grooves 15. The gears 13 can drive the contact wheels 11 to rotate by meshing with the tooth ring grooves 15. The contact wheels 11 can drive the detection instrument to rotate around the pipe for detection by rolling on the surface of the pipe.

[0027] During use, the detection instrument is installed in the instrument installation groove 3, the number of auxiliary frames 7 sleeved on the surface of the tightening belt 2 is adjusted according to different pipe diameters, the multi-rod frame 401 is inserted into the left end of the tightening belt 2, the left end of the tightening belt 2 is connected to the installation main frame 1, and then the other end of the tightening belt 2 is fixed to the winding wheel 9 by bolts, so that the pipe is located on the inner side of the tightening belt 2, the motor B501 is meshed with the worm gear 503 through the worm 502, and drives the long shaft 8 and the winding wheel 9 to rotate and wind the tightening belt 2. As the tightening belt 2 is tightened, multiple auxiliary frames 7 and the installation main frame 1 are in contact with the pipeline surface, and the tightening belt 2 is tightened at the same time, so that the detection instrument can detect the pipe, and then the motor A12 is started to drive the gear 13 to mesh with the tooth ring groove 15, and drive the two contact wheels 11 on the right to rotate. The two contact wheels 11 can drive the auxiliary frame 7 and the installation main frame 1 to rotate around the pipe by rolling in contact with the pipe, so that the detection instrument can detect the circumference of the pipe.

[0028] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An auxiliary device for non-destructive testing of metal pipes, comprising a mounting frame (1), characterized in that: A tightening belt (2) is arranged below the main mounting frame (1), an instrument mounting groove (3) extending from top to bottom is provided at the center of the main mounting frame (1), vertical through grooves (6) are provided on the bottom surface of the main mounting frame (1) and on the left and right sides of the instrument mounting groove (3), the two ends of the tightening belt (2) respectively slide through the inside of the two vertical through grooves (6), a plurality of auxiliary frames (7) are arranged below the main mounting frame (1), each auxiliary frame (7) is slidably sleeved on the outer surface of the tightening belt (2), the upper left end of the tightening belt (2) is connected to the main mounting frame (1) via a connecting structure (4), a long shaft (8) is arranged above the vertical through groove (6) on the right side, the long shaft (8) is rotatably connected to the upper end of the main mounting frame (1), and a winding wheel (9) is fixedly sleeved on the outer surface of the long shaft (8) and located above the tightening belt (2) ), the upper right end of the tightening belt (2) is connected to the outer ring surface of the winding wheel (9) by a plurality of bolts, the front side of the mounting main frame (1) is fixedly connected to a power winding structure (5), the front end of the long shaft (8) is connected to the power winding structure (5), the left and right ends of the mounting main frame (1) are rotatably connected to inner rods (10), both ends of each inner rod (10) are rotatably sleeved with contact wheels (11), the contact wheels (11) are rotatably connected to the mounting main frame (1), the tightening belt (2) is located between the four contact wheels (11), the two inner rods (10) are located on the inner side of the tightening belt (2), the front side of the mounting main frame (1) is fixedly installed with a motor A (12), the outer ring surfaces of the two contact wheels (11) located on the right side are meshed with gears (13), and the two gears (13) are fixedly sleeved on the output end of the motor A (12).

2. The auxiliary device for nondestructive testing of metal pipes according to claim 1, characterized in that: The power winding structure (5) comprises an electric motor B (501), a worm (502) and a worm wheel (503); the worm (502) and the worm wheel (503) are meshed with each other; the electric motor B (501) is fixedly connected to the front side of the mounting main frame (1); the lower end of the worm (502) is fixedly connected to the output end of the electric motor B (501); and the worm wheel (503) is fixedly sleeved on the front end of the long shaft (8).

3. The auxiliary device for nondestructive testing of metal pipes according to claim 1, characterized in that: Both ends of the auxiliary frame (7) are rotatably connected to rollers (14); one end of the auxiliary frame (7) close to the inner side of the tightening belt (2) is arc-shaped; and one end of the mounting main frame (1) close to the inner side of the tightening belt (2) is arc-shaped.

4. The auxiliary device for nondestructive testing of metal pipes according to claim 1, characterized in that: The connection structure (4) comprises a multi-rod frame (401) and a tensioning telescopic rod (402), the two ends of the tensioning telescopic rod (402) being fixedly connected to the left end of the multi-rod frame (401) and the left side of the installation main frame (1) respectively, the right end of the multi-rod frame (401) being slidably plugged into the left side of the installation main frame (1), the right end of the multi-rod frame (401) being a plurality of rod-shaped structures, and the left upper end of the tightening belt (2) being slidably sleeved on the outer surface of the rod-shaped structure of the multi-rod frame (401).

5. The auxiliary device for nondestructive testing of metal pipes according to claim 1, characterized in that: The outer ring surfaces of the two contact wheels (11) located on the right side are both provided with tooth ring grooves (15), and the two gears (13) are respectively meshed with the two tooth ring grooves (15).

6. The auxiliary device for nondestructive testing of metal pipes according to claim 1, characterized in that: A pressure plate (16) is slidably inserted on the inner side of the auxiliary frame (7), and the pressure plate (16) is located on the outer side of the tightening belt (2). A movable frame (17) is slidably inserted on the outer side of the auxiliary frame (7), and one end of the movable frame (17) located outside the auxiliary frame (7) is fixedly connected to a compression telescopic rod (18), and the other end of the compression telescopic rod (18) is fixedly connected to the auxiliary frame (7). One end of the movable frame (17) located inside the auxiliary frame (7) is fixedly connected to the pressure plate (16).

7. The auxiliary device for nondestructive testing of metal pipes according to claim 1, characterized in that: The bottom surface of the main mounting frame (1) and located below the two vertical through slots (6) are both rotatably connected to steering wheels (19), and the steering wheels (19) are in rolling contact with the outer annular surface of the tightening belt (2).

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