Pipeline flaw detection device

Abstract

The utility model relates to a heat supply pipeline flaw detection device wide in application range, in particular to a pipeline flaw detection device which comprises a movable frame a and a movable frame b, a fixing assembly and a connecting assembly are arranged in the movable frame a and the movable frame b respectively, the right side face of the movable frame a is in sliding connection with the left side faces of two connecting plates, and the right side face of the movable frame b is in sliding connection with the left side faces of the two connecting plates. The right side face of a moving frame b is slidably connected with the left side faces of the two mounting plates, a servo motor c drives a second screw a to rotate, the second screw a rotates to drive a threaded sleeve b, a fixing plate and a probe to move forwards, the distance between the probe and a pipeline is adjusted, a servo motor b drives a gear a and a half gear to rotate, and the distance between the probe and the pipeline is adjusted. The half gear rotates to drive the connecting frame to rotate, the connecting frame drives the fixing plate and the probe to surround the pipeline by a circle to detect the pipeline, and the problems that part of the pipeline is large, when the bottom of the pipeline is detected, the pipeline is inconvenient to wind to the other side of the pipeline, and detection is very inconvenient are solved.

Description

Technical Field

[0001] The utility model relates to a pipeline flaw detection device, in particular to a widely applicable heating pipeline flaw detection device. Background Art

[0002] A heating network, also known as a heat pipe, is a network of heating pipes that connects heat sources to building heat inlets, such as boiler rooms, direct-fired power plant rooms, and heating centers. Multiple heating pipes form a network. The following heating networks are designed for hot water with a design pressure of 2.5 MPa or less and a temperature of 200°C or less; and for steam with a design pressure of 1.6 MPa or less and a temperature of 350°C or less.

[0003] Ultrasonic flaw detection is a method of inspecting part defects by utilizing the characteristic that ultrasound can penetrate deep into metal materials and reflect at the edge of the interface when entering from one section to another. When the ultrasonic beam passes from the surface of the part through the probe into the metal interior, it generates reflected waves when encountering defects and the bottom surface of the part, forming pulse waveforms on the fluorescent screen. The location and size of the defect are determined based on these pulse waveforms.

[0004] The status of the heating pipeline welds is related to the safe operation of the pipeline. Therefore, the heating pipeline welds must be inspected after welding. When using an ultrasonic detector for flaw detection, the ultrasonic detector head needs to be moved around the weld. However, the existing pipeline models are different, and some pipelines are large. When detecting the bottom of the pipeline, it is not convenient to go around to the other side of the pipeline, which makes the inspection very inconvenient. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a pipeline flaw detection device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pipeline flaw detection device, comprising a movable frame a and a movable frame b, wherein the movable frame a and the movable frame b are respectively provided with a fixed component and a connecting component, the right side of the movable frame a is respectively slidably connected to the left side of the two connecting plates, the right side of the movable frame b is respectively slidably connected to the left side of the two mounting plates, and two connecting sleeves are respectively installed on the opposite sides of the two mounting plates, and the upper surfaces of the two connecting sleeves are slidably connected to two half gears, a rotating component is provided on the upper surface of the rear mounting plate, the upper surface of the half gear is fixedly connected to the connecting frame, the upper surface of the connecting frame is slidably connected to the fixed plate, the front of the fixed plate is installed with a probe, and the interior of the connecting frame is provided with a distance adjustment component.

[0007] Preferably, the fixing component includes a servo motor a installed on the front inner side of the mobile frame a, the output shaft of the servo motor a is fixedly connected to one end of the front side of the first screw a, one end of the back side of the first screw a is fixedly connected to one end of the front side of the first screw b, one end of the back side of the first screw b is rotatably connected to the back side of the inner wall of the mobile frame a, the outer surfaces of the first screw a and the first screw b are both threadedly connected with threaded sleeves a, and two connecting plates are fixedly connected to the right sides of the two threaded sleeves a.

[0008] Preferably, a fixing rod is fixedly connected to the front side of the connecting plate, and the front side of the fixing rod passes through a slot provided on the back side of the connecting sleeve and is fixedly connected to the back side of the splint, and a pulley is installed on the front side of the splint.

[0009] Preferably, the connecting assembly includes a servo motor d installed on the front side of the inner wall of the mobile frame b, the output shaft of the servo motor d is fixedly connected to one end of the front side of the third screw a, one end of the back side of the third screw a is fixedly connected to one end of the front side of the third screw b, one end of the back side of the third screw b is rotatably connected to the back side of the inner wall of the mobile frame b, the outer surfaces of the third screw a and the third screw b are both threadedly connected with threaded sleeves c, and the right sides of the two threaded sleeves c are fixedly connected to two mounting plates.

[0010] Preferably, the rotating assembly includes a servo motor b mounted on the upper surface of the rear mounting plate, the output shaft of the servo motor b is fixedly connected to the lower surface of the gear a, and the outer surface of the gear a is meshed with the outer surface of the half gear.

[0011] Preferably, the pitch adjustment assembly includes a servo motor c installed on the front side of the inner wall of the connecting frame, the output shaft of the servo motor c is fixedly connected to one end of the front side of the second screw a, one end of the back side of the second screw a is rotatably connected to the back side of the inner wall of the connecting frame, the outer surface of the second screw a is threadedly connected to a threaded sleeve b, and the upper surface of the threaded sleeve b is fixedly connected to a fixing plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model drives the third screw a and the third screw b to rotate through a servo motor d, and the rotation of the third screw a and the third screw b drives two threaded sleeves c, two mounting plates, two connecting sleeves and two half gears to be spliced, and the servo motor a drives the first screw a and the first screw b to rotate, and the rotation of the first screw a and the first screw b drives the two threaded sleeves a, two connecting plates, two fixing rods, two clamping plates and two pulleys to approach each other, and the pipeline is clamped by the two pulleys, and the pulleys facilitate the sliding of the device on the outer surface of the pipeline, thereby solving the problem that the existing device cannot be applied to pipelines of different models.

[0014] The utility model drives the second screw a to rotate by the servo motor c, and the rotation of the second screw a drives the threaded sleeve b, the fixed plate and the probe to move forward, so as to adjust the distance between the probe and the pipeline. The servo motor b drives the gear a and the half gear to rotate, and the rotation of the half gear drives the connecting frame to rotate, and the connecting frame drives the fixed plate and the probe to circle around the pipeline to detect the pipeline, thereby solving the problem that some pipelines are large and it is inconvenient to go around to the other side of the pipeline when detecting the bottom of the pipeline, which makes detection very inconvenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

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

[0017] Figure 2 Schematic diagram of the internal structure of the mobile frame a and the mobile frame b in the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the connecting frame in the present utility model;

[0019] In the figure: 1. Mobile rack a; 2. Mobile rack b;

[0020] Fixed components: 31, servo motor a; 32, first screw a; 33, first screw b; 34, threaded sleeve a; 4, connecting plate; 5, fixing rod; 6, connecting sleeve; 7, slot; 8, mounting plate;

[0021] Rotating assembly: 91, half gear; 92, gear a; 93, servo motor b; 10, connecting frame;

[0022] Pitch adjustment assembly: 111, servo motor c; 112, threaded sleeve b; 113, second screw a; 114, fixing plate; 12, probe;

[0023] Connecting components: 131, servo motor d; 132, third screw a; 133, third screw b; 134, threaded sleeve c;

[0024] 14. Splint; 15. Pulley. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example

[0027] See also Figure 1-3 The utility model provides the following technical solutions: a pipeline flaw detection device, comprising a mobile frame a1 and a mobile frame b2, wherein the mobile frame a1 and the mobile frame b2 are respectively provided with a fixed component and a connecting component, the right side of the mobile frame a1 is respectively slidably connected to the left side of the two connecting plates 4, the right side of the mobile frame b2 is respectively slidably connected to the left side of the two mounting plates 8, and two connecting sleeves 6 are respectively installed on the opposite sides of the two mounting plates 8, and the upper surfaces of the two connecting sleeves 6 are slidably connected to two half gears 91, and the upper surface of the rear mounting plate 8 is provided with a rotating component, the upper surface of the half gear 91 is fixedly connected to a connecting frame 10, the upper surface of the connecting frame 10 is slidably connected to a fixed plate 114, the front of the fixed plate 114 is installed with a probe 12, and the interior of the connecting frame 10 is provided with a distance adjustment component.

[0028] Specifically, the fixing assembly includes a servo motor a31 installed on the front inner side of the mobile frame a1, the output shaft of the servo motor a31 is fixedly connected to one end of the front side of the first screw a32, one end of the back side of the first screw a32 is fixedly connected to one end of the front side of the first screw b33, one end of the back side of the first screw b33 is rotatably connected to the back side of the inner wall of the mobile frame a1, the outer surfaces of the first screw a32 and the first screw b33 are both threadedly connected to threaded sleeves a34, and the right sides of the two threaded sleeves a34 are fixedly connected to two connecting plates 4;

[0029] Specifically, a fixing rod 5 is fixedly connected to the front of the connecting plate 4, and the front of the fixing rod 5 passes through a slot 7 provided on the back of the connecting sleeve 6 and is fixed to the back of the clamping plate 14, and a pulley 15 is installed on the front of the clamping plate 14;

[0030] The servo motor a31 drives the first screw a32 and the first screw b33 to rotate. The rotation of the first screw a32 and the first screw b33 drives the two threaded sleeves a34 and the two connecting plates 4 to move closer to each other. The two connecting plates 4 drive the two fixing rods 5, the two clamping plates 14 and the two pulleys 15 to move closer to each other. The two pulleys 15 clamp the pipe and facilitate the sliding of the device on the outer surface of the pipe.

[0031] It is easy to apply to pipes of different diameters.

[0032] Specifically, the connection assembly includes a servo motor d131 installed on the front side of the inner wall of the mobile frame b2, the output shaft of the servo motor d131 is fixedly connected to one end of the front side of the third screw a132, one end of the back side of the third screw a132 is fixedly connected to one end of the front side of the third screw b133, one end of the back side of the third screw b133 is rotatably connected to the back side of the inner wall of the mobile frame b2, the outer surfaces of the third screw a132 and the third screw b133 are both threadedly connected to threaded sleeves c134, and the right sides of the two threaded sleeves c134 are fixedly connected to two mounting plates 8;

[0033] The servo motor d131 drives the third screw a132 and the third screw b133 to rotate. The rotation of the third screw a132 and the third screw b133 drives the two threaded sleeves c134 and the two mounting plates 8 to move closer to each other. The two mounting plates 8 move closer to each other and drive the two connecting sleeves 6 to move closer to each other to splice the two half gears 91 and the two connecting sleeves 6.

[0034] A sliding groove is provided on the upper surface of the connecting sleeve 6, and a sliding block is installed on the lower surface of the half gear 91, so that the half gears 91 are spliced ​​together to form a complete gear.

[0035] Specifically, the rotating assembly includes a servo motor b93 mounted on the upper surface of the rear mounting plate 8, the output shaft of the servo motor b93 is fixedly connected to the lower surface of the gear a92, and the outer surface of the gear a92 is meshed with the outer surface of the half gear 91;

[0036] The servo motor b93 drives the gear a92 and the half gear 91 to rotate. The rotation of the half gear 91 drives the connecting frame 10 to rotate. The connecting frame 10 drives the fixing plate 114 and the probe 12 to circle around the pipeline to detect the pipeline.

[0037] Specifically, the pitch adjustment assembly includes a servo motor c111 mounted on the front surface of the inner wall of the connecting frame 10, the output shaft of the servo motor c111 is fixedly connected to one end of the front surface of the second screw a113, one end of the back surface of the second screw a113 is rotatably connected to the back surface of the inner wall of the connecting frame 10, the outer surface of the second screw a113 is threadedly connected to a threaded sleeve b112, and the upper surface of the threaded sleeve b112 is fixedly connected to a fixing plate 114;

[0038] The servo motor c111 drives the second screw a113 to rotate, and the rotation of the second screw a113 drives the threaded sleeve b112, the fixing plate 114 and the probe 12 to move forward, thereby adjusting the distance between the probe 12 and the pipeline.

[0039] The working principle and use process of this utility model:

[0040] When the utility model is used:

[0041] The servo motor d131 drives the third screw a132 and the third screw b133 to rotate. The rotation of the third screw a132 and the third screw b133 drives the two threaded sleeves c134 and the two mounting plates 8 to approach each other. The two mounting plates 8 approach each other and drive the two connecting sleeves 6 to approach each other to splice the two half gears 91 and the two connecting sleeves 6. The servo motor a31 drives the first screw a32 and the first screw b33 to rotate. The rotation of the first screw a32 and the first screw b33 drives the two threaded sleeves a34 and the two connecting plates 4 to approach each other. The two connecting plates 4 drive the two fixing rods 5 and the two clamps The plate 14 and the two pulleys 15 are close to each other, and the pipe is clamped by the two pulleys 15. The pulleys 15 facilitate sliding of the device on the outer surface of the pipe. The servo motor c111 drives the second screw a113 to rotate. The rotation of the second screw a113 drives the threaded sleeve b112, the fixed plate 114 and the probe 12 to move forward, and the distance between the probe 12 and the pipe is adjusted. The servo motor b93 drives the gear a92 and the half gear 91 to rotate. The rotation of the half gear 91 drives the connecting frame 10 to rotate. The connecting frame 10 drives the fixed plate 114 and the probe 12 to circle around the pipe to detect the pipe.

[0042] The circuits, electronic components and modules involved are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by this utility model does not involve improvements to software and methods.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A pipeline flaw detection device, comprising a movable frame a (1) and a movable frame b (2), characterized in that: The interiors of the movable frame a (1) and the movable frame b (2) are respectively provided with a fixed component and a connecting component. The right side of the movable frame a (1) is respectively slidably connected to the left sides of the two connecting plates (4), and the right side of the movable frame b (2) is respectively slidably connected to the left sides of the two mounting plates (8). Two connecting sleeves (6) are respectively installed on opposite sides of the two mounting plates (8), and the upper surfaces of the two connecting sleeves (6) are slidably connected to two half gears (91). A rotating component is provided on the upper surface of the rear mounting plate (8), and a connecting frame (10) is fixed on the upper surface of the half gear (91). The upper surface of the connecting frame (10) is slidably connected to a fixed plate (114), and a probe (12) is installed on the front of the fixed plate (114). A distance adjustment component is provided inside the connecting frame (10).

2. A pipeline flaw detection device according to claim 1, characterized in that: The fixing assembly includes a servo motor a (31) installed on the front inner side of the mobile frame a (1), an output shaft of the servo motor a (31) is fixedly connected to one end of the front side of the first screw a (32), one end of the back side of the first screw a (32) is fixedly connected to one end of the front side of the first screw b (33), one end of the back side of the first screw b (33) is rotatably connected to the back side of the inner wall of the mobile frame a (1), the outer surfaces of the first screw a (32) and the first screw b (33) are both threadedly connected to threaded sleeves a (34), and the right sides of the two threaded sleeves a (34) are fixedly connected to two connecting plates (4).

3. A pipeline flaw detection device according to claim 2, characterized in that: The front of the connecting plate (4) is fixedly connected to a fixing rod (5), the front of the fixing rod (5) passes through a slot (7) provided on the back of the connecting sleeve (6) and is fixedly connected to the back of the clamping plate (14), and the front of the clamping plate (14) is installed with a pulley (15).

4. The pipeline flaw detection device according to claim 1, characterized in that: The connecting assembly includes a servo motor d (131) mounted on the front side of the inner wall of the movable frame b (2), an output shaft of the servo motor d (131) is fixedly connected to one end of the front side of the third screw a (132), one end of the back side of the third screw a (132) is fixedly connected to one end of the front side of the third screw b (133), one end of the back side of the third screw b (133) is rotatably connected to the back side of the inner wall of the movable frame b (2), the outer surfaces of the third screw a (132) and the third screw b (133) are both threadedly connected to threaded sleeves c (134), and the right sides of the two threaded sleeves c (134) are fixedly connected to two mounting plates (8).

5. The pipeline flaw detection device according to claim 1, characterized in that: The rotating assembly includes a servo motor b (93) mounted on the upper surface of the rear mounting plate (8), the output shaft of the servo motor b (93) is fixedly connected to the lower surface of the gear a (92), and the outer surface of the gear a (92) is meshed with the outer surface of the half gear (91).

6. The pipeline flaw detection device according to claim 1, characterized in that: The pitch adjustment assembly comprises a servo motor c (111) mounted on the front face of the inner wall of the connecting frame (10); an output shaft of the servo motor c (111) is fixedly connected to one end of the front face of the second screw rod a (113); one end of the back face of the second screw rod a (113) is rotatably connected to the back face of the inner wall of the connecting frame (10); a threaded sleeve b (112) is threadedly connected to the outer surface of the second screw rod a (113); and a fixing plate (114) is fixedly connected to the upper surface of the threaded sleeve b (112).

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