Electromagnetic ultrasonic pipeline corrosion detection robot

Abstract

The utility model provides an electromagnetic ultrasonic pipeline corrosion detection robot, which relates to the technical field of pipeline corrosion detection and comprises a middle axle box, both ends of the middle axle box are fixedly connected with surrounding adjusting mechanisms, an annular hoop is arranged below each group of surrounding adjusting mechanisms, and both ends of the annular hoop are fixedly connected with limiting mechanisms. According to the utility model, the device is placed on a pipeline to be detected, the second motor drives the first toothed plate to rotate and drives the claw arm to do circular motion, so that the roller columns are attached to the outer wall of the pipeline, the first toothed plate is meshed with the second toothed plate, and the second toothed plate drives the other group of roller columns to be attached to the pipeline, and therefore, under the clamping and limiting effects of the two roller columns, the roller columns are clamped and fixed. The annular hoop on the side is clamped on the outer side of the pipeline, and the other end is the same, so that the device is clamped outside the pipeline, that is, the head of the ultrasonic generator in the middle axle box always keeps a fixed distance with the pipeline, the problem of operation error or missing detection in a traditional mode is avoided, and the comprehensiveness and accuracy of detection are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline corrosion detection, in particular to an electromagnetic ultrasonic pipeline corrosion detection robot. Background Art

[0002] Ultrasonic testing is a commonly used pipeline corrosion detection method. Its principle is to use the sound wave reflection and scattering characteristics when ultrasonic waves propagate in the material to detect the thickness and corrosion condition of the pipeline wall.

[0003] In the prior art, even if electromagnetic ultrasonic waves are used for pipeline corrosion detection, the operator holds the ultrasonic head in his hand, fits it against the pipeline and performs detection along the outer wall of the pipeline. During the detection, the operator drives the ultrasonic head to move. This detection method consumes manpower and is prone to missed detection, which has certain disadvantages. Utility Model Content

[0004] The utility model mainly provides an electromagnetic ultrasonic pipeline corrosion detection robot which can move on the outer wall of a pipeline and is convenient for detection.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an electromagnetic ultrasonic pipeline corrosion detection robot, including a central axis box, both ends of the central axis box are fixedly connected with a surrounding adjustment mechanism, an annular hoop is arranged under each group of the surrounding adjustment mechanism, both ends of the annular hoop are fixedly connected with a limiting mechanism, the limiting mechanism includes a second motor, a claw arm, a roller column, a first tooth plate and a second tooth plate, the second motor is fixedly connected to the end of the annular hoop, the output end of the second motor is fixedly connected to the first tooth plate, the first tooth plate and the second tooth plate are meshed and connected, the other end of the first tooth plate is fixedly connected with a claw arm, the internal rotation of the claw arm is connected with a roller column, a driving motor is fixedly installed on one side of the central axis box, the A driving wheel is fixedly installed on the output end of the driving motor, and the driving wheel is located in the middle of the central axis box; the operator places the device on the pipe to be inspected, controls the second motor to start synchronously, thereby driving the first tooth plate to rotate, and the first tooth plate drives the claw arm to move in a circular motion, so that the rollers fit the outer wall of the pipe, and the first tooth plate is meshed with the second tooth plate, the second tooth plate and the first tooth plate move closer to the middle, and the second tooth plate drives another group of rollers to fit the pipe, thereby under the clamping and limiting action of the two rollers, the annular hoop on this side is stuck on the outside of the pipe, and the other end is the same, thereby the device is stuck outside the pipe, that is, the ultrasonic generator in the central axis box always maintains a fixed distance from the pipe, avoiding the problems of operational errors or missed detection in traditional methods, and improving the comprehensiveness and accuracy of detection.

[0006] Preferably, an outer side of the annular hoop is fixedly connected to an outer gear ring group, and a side cover is rollingly clamped to the outer side of the annular hoop; the annular hoop serves as a support for the outer gear ring group, and the side cover is rollingly clamped to the outer side of the annular hoop.

[0007] Preferably, a double-toothed roller is rotatably connected inside the side cover, and a sub-gear is fixedly mounted on one end of the double-toothed roller; after the sub-gear receives force, it drives the corresponding double-toothed roller to rotate in the side cover.

[0008] Preferably, the outer side of the secondary gear is meshedly connected with the main gear, and the middle part of the main gear is fixedly installed with a first motor; when the first motor is started, it drives the main gear to rotate, and the main gear meshes with two sets of secondary gears at the same time.

[0009] Preferably, one side of the first motor is fixedly connected to a limiting frame, the limiting frame is fixedly connected to the outer side of the side cover, and the side cover is fixedly connected to one side of the middle axle box; the limiting frame installs the first motor on the outer side of the side cover, and the side cover is fixed to the end of the middle axle box by screws.

[0010] Preferably, an electric cylinder is fixedly installed inside the middle axis box, and an ultrasonic head is fixedly connected to the lower end of the electric cylinder; when the electric cylinder is controlled to start, the movable rod of the electric cylinder extends, driving the ultrasonic head close to the pipeline, and an ultrasonic generator is installed inside the middle axis box, and ultrasonic waves are emitted to the pipeline through the ultrasonic head to detect corrosion conditions.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, the operator places the device on the pipe to be inspected, the second motor drives the first tooth plate to rotate, the first tooth plate drives the claw arm to make a circular motion, so that the rollers fit the outer wall of the pipe, and the first tooth plate is meshed with the second tooth plate, and the second tooth plate drives another group of rollers to fit the pipe, thereby under the clamping and limiting action of the two rollers, the annular hoop on this side is stuck on the outside of the pipe, and the other end is the same, thereby the device is stuck outside the pipe, that is, the ultrasonic generator head in the central shaft box always maintains a fixed distance from the pipe, avoiding the problem of operating error or missed detection in the traditional method, and improving the comprehensiveness and accuracy of the detection.

[0013] 2. In the utility model, according to actual use needs, the first motor is started to drive the main gear to rotate, and the main gear engages with two sets of sub-gears at the same time. The sub-gears drive the corresponding double-toothed rollers to rotate in the side cover. When the double-toothed rollers rotate, they engage with the outer gear ring group. Since the outer gear ring group is in a fixed state, the surrounding adjustment mechanism rotates along the annular hoop to adjust the position of the ultrasonic head to fit the pipeline, avoid obstacles outside the pipeline affecting the detection, and improve the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model proposes a structural schematic diagram of an electromagnetic ultrasonic pipeline corrosion detection robot;

[0015] Figure 2A side view of an electromagnetic ultrasonic pipeline corrosion detection robot is proposed for the utility model;

[0016] Figure 3 The utility model proposes a partial structural diagram of a surrounding adjustment mechanism in an electromagnetic ultrasonic pipeline corrosion detection robot;

[0017] Figure 4 The utility model provides a structural schematic diagram of a limiting mechanism in an electromagnetic ultrasonic pipeline corrosion detection robot.

[0018] Legend: 1. Middle axle box; 2. Driving wheel; 3. Driving motor; 4. Surrounding adjustment mechanism; 41. Side cover; 42. Limiting frame; 43. Main gear; 44. First motor; 45. Sub-gear; 46. Double-tooth roller; 5. Annular hoop; 51. External gear ring group; 6. Limiting mechanism; 61. Second motor; 62. Claw arm; 63. Roller column; 64. First gear plate; 65. Second gear plate; 7. Electric cylinder; 8. Ultrasonic head. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0021] See also Figure 1-Figure 4The utility model provides a technical solution: an electromagnetic ultrasonic pipeline corrosion detection robot, including a central axis box 1, both ends of the central axis box 1 are fixedly connected with a surrounding adjustment mechanism 4, an annular hoop 5 is arranged below each group of surrounding adjustment mechanisms 4, both ends of the annular hoop 5 are fixedly connected with a limiting mechanism 6, the limiting mechanism 6 includes a second motor 61, a claw arm 62, a roller 63, a first tooth plate 64 and a second tooth plate 65, the second motor 61 is fixedly connected to the end of the annular hoop 5, the output end of the second motor 61 is fixedly connected to the first tooth plate 64, the first tooth plate 64 and the second tooth plate 65 are meshed and connected, the other end of the first tooth plate 64 is fixedly connected with a claw arm 62, the internal rotation of the claw arm 62 is connected with a roller 63, a driving motor 3 is fixedly installed on one side of the central axis box 1, and the output end of the driving motor 3 is fixedly installed There is a driving wheel 2, which is located in the middle of the center shaft box 1; the operator places the device on the pipe to be inspected, controls the second motor 61 to start synchronously, thereby driving the first tooth plate 64 to rotate, and the first tooth plate 64 drives the claw arm 62 to make a circular motion, so that the roller 63 fits the outer wall of the pipe, and the first tooth plate 64 is engaged with the second tooth plate 65, the second tooth plate 65 and the first tooth plate 64 move closer to the middle, and the second tooth plate 65 drives another group of rollers 63 to fit the pipe, thereby under the clamping and limiting action of the two rollers 63, the annular hoop 5 on this side is stuck on the outside of the pipe, and the other end is the same, thereby the device is stuck outside the pipe, that is, the ultrasonic generator head in the center shaft box 1 always maintains a fixed distance from the pipe, avoiding the problem of operating errors or missed detection in the traditional method, and improving the comprehensiveness and accuracy of the detection.

[0022] like Figure 3 As shown, the outer side of the annular hoop 5 is fixedly connected with an outer gear ring set 51 , and the outer side of the annular hoop 5 is rollingly clamped with a side cover 41 ; the annular hoop 5 serves as a support for the outer gear ring set 51 , and the side cover 41 is rollingly clamped on the outer side of the annular hoop 5 .

[0023] like Figure 3 As shown, a double-toothed roller 46 is rotatably connected inside the side cover 41 , and a sub-gear 45 is fixedly installed on one end of the double-toothed roller 46 ; after the sub-gear 45 receives force, it drives the corresponding double-toothed roller 46 to rotate in the side cover 41 .

[0024] like Figure 3 As shown, the outer side of the secondary gear 45 is meshed with the main gear 43, and the middle part of the main gear 43 is fixedly installed with a first motor 44; when the first motor 44 is started, it drives the main gear 43 to rotate, and the main gear 43 meshes with two sets of secondary gears 45 at the same time.

[0025] like Figure 3As shown, one side of the first motor 44 is fixedly connected to a limiting frame 42, the limiting frame 42 is fixedly connected to the outer side of the side cover 41, and the side cover 41 is fixedly connected to one side of the middle axle box 1; the limiting frame 42 installs the first motor 44 on the outer side of the side cover 41, and the side cover 41 is fixed to the end of the middle axle box 1 by screws.

[0026] like Figure 2 As shown, an electric cylinder 7 is fixedly installed inside the middle shaft box 1, and an ultrasonic head 8 is fixedly connected to the lower end of the electric cylinder 7; when the electric cylinder 7 is controlled to start, the movable rod of the electric cylinder 7 extends, driving the ultrasonic head 8 to approach the pipeline, and an ultrasonic generator is installed inside the middle shaft box 1, and ultrasonic waves are emitted to the pipeline through the ultrasonic head 8 to detect the corrosion condition.

[0027] The method of use and working principle of the device: When using the electromagnetic ultrasonic pipeline corrosion detection robot, the operator places the device on the pipeline to be inspected, controls the second motor 61 to start synchronously, thereby driving the first tooth plate 64 to rotate, and the first tooth plate 64 drives the claw arm 62 to move in a circle, so that the roller 63 fits the outer wall of the pipeline, and the first tooth plate 64 is meshed with the second tooth plate 65, the second tooth plate 65 and the first tooth plate 64 move closer to the middle, and the second tooth plate 65 drives another group of rollers 63 to fit the pipeline, thereby under the clamping and limiting action of the two rollers 63, the annular hoop 5 on this side is stuck on the outside of the pipeline, the electric cylinder 7 is controlled to start, the movable rod of the electric cylinder 7 is extended, and the ultrasonic head 8 is driven close to the pipeline, and an ultrasonic generator is installed inside the middle shaft box 1, and the ultrasonic head passes through the ultrasonic head 8 emits ultrasonic waves to the pipeline, and the driving motor 3 is started. The driving motor 3 drives the driving wheel 2 to rotate. The driving wheel 2 is attached to the outer wall of the pipeline, so that the whole device obtains traction, driving the rotation of the head and tail multiple groups of rollers 63, thereby the device moves along the pipeline to detect the corrosion of the pipeline. According to actual use needs, the first motor 44 is started to drive the main gear 43 to rotate. The main gear 43 simultaneously engages with two groups of sub gears 45, and the sub gear 45 drives the corresponding double-toothed roller 46 to rotate in the side cover 41. When the double-toothed roller 46 rotates, it engages with the outer gear ring group 51. Since the outer gear ring group 51 is in a fixed state, it rotates along the annular hoop 5 around the adjusting mechanism 4 to adjust the position of the ultrasonic head 8 to fit the pipeline to avoid obstacles outside the pipeline affecting the detection.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An electromagnetic ultrasonic pipeline corrosion detection robot, comprising a central axle box (1), characterized in that: Both ends of the middle axle box (1) are fixedly connected with a surrounding adjustment mechanism (4), and an annular hoop (5) is arranged below each group of the surrounding adjustment mechanism (4). Both ends of the annular hoop (5) are fixedly connected with a limiting mechanism (6), and the limiting mechanism (6) comprises a second motor (61), a claw arm (62), a roller column (63), a first tooth plate (64) and a second tooth plate (65). The second motor (61) is fixedly connected to the end of the annular hoop (5), and the output end of the second motor (61) is fixedly connected to the first tooth plate (64). The first tooth plate (64) and the second tooth plate (65) are meshingly connected. The other end of the first tooth plate (64) is fixedly connected with a claw arm (62), and the inside of the claw arm (62) is rotatably connected with a roller column (63). A driving motor (3) is fixedly installed on one side of the middle axle box (1), and a driving wheel (2) is fixedly installed on the output end of the driving motor (3). The driving wheel (2) is located in the middle of the middle axle box (1).

2. The electromagnetic ultrasonic pipeline corrosion detection robot according to claim 1 is characterized in that: An outer gear ring group (51) is fixedly connected to the outer side of the annular hoop (5), and a side cover (41) is rollingly clamped to the outer side of the annular hoop (5).

3. The electromagnetic ultrasonic pipeline corrosion detection robot according to claim 2 is characterized in that: A double-toothed roller (46) is rotatably connected inside the side cover (41), and a sub-gear (45) is fixedly mounted on one end of the double-toothed roller (46).

4. The electromagnetic ultrasonic pipeline corrosion detection robot according to claim 3 is characterized in that: The outer side of the secondary gear (45) is meshedly connected with the main gear (43), and the middle part of the main gear (43) is fixedly mounted with a first motor (44).

5. The electromagnetic ultrasonic pipeline corrosion detection robot according to claim 4 is characterized in that: One side of the first motor (44) is fixedly connected to a limiting frame (42), the limiting frame (42) is fixedly connected to the outside of the side cover (41), and the side cover (41) is fixedly connected to one side of the middle axle box (1).

6. The electromagnetic ultrasonic pipeline corrosion detection robot according to claim 1 is characterized in that: An electric cylinder (7) is fixedly installed inside the middle axle box (1), and an ultrasonic head (8) is fixedly connected to the lower end of the electric cylinder (7).

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