CN214425697U

CN214425697U - Multifunctional pipeline detection device

Info

Publication number: CN214425697U
Application number: CN202022935206.7U
Authority: CN
Inventors: 李云; 赵陈; 董明海; 汪嘉梁; 骆佳成
Original assignee: Zhejiang International Maritime College
Current assignee: Zhejiang International Maritime College
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-10-19
Anticipated expiration: 2030-12-07

Abstract

The utility model provides a multi-functional pipeline detection device, includes test rod, detector and actuating mechanism, left locating rack and right locating rack, the one end and the left locating rack of test rod rotate to be connected, and the other end axial of test rod passes and waits to detect the inner chamber of treating the pipeline and rotate with right locating rack and be connected, sets up drive arrangement on left locating rack or the right locating rack, and the detector sets up in the middle part of test rod, sets up on the detector and can detect the detector that waits to detect pipeline inner wall roughness, weld joint precision and welded pipe concentricity, the detector passing signal is connected with the check out test set that is located to wait to detect the pipeline be provided with on the left locating rack and can reciprocate and adjust the left adjusting device of test rod left end height be provided with on the right locating rack and can reciprocate and adjust the right adjusting device of test rod right-hand member height. The utility model has the advantages that: the detection function is various, and the device can be applied to the detection of pipelines with different pipe diameters, and is convenient and efficient to install and detect.

Description

Multifunctional pipeline detection device

Technical Field

The utility model relates to a pipeline detection device makes technical field, especially indicates a multi-functional pipeline detection device.

Background

The present invention relates to a device for detecting scale on the inner wall of a pipeline, which is disclosed in the present invention of chinese patent application No. CN201410709034.8 entitled "device for detecting scale on the inner wall of a pipeline", and comprises: casing, first detection arm, second detection arm and supporting wheel, first detection arm and second detection arm set up on the casing, first detection arm is equipped with the lead screw, the lead screw meshes with the fixed nut that sets up in the casing mutually, the lead screw is driven by step motor, the tip of lead screw still is provided with the travel switch who is used for controlling the step motor switching, install the camera on the second detection arm, its axis symmetric distribution is followed in the below of casing to the supporting wheel setting. The invention has simple structure, can accurately measure the thickness of the scale on the inner wall of the pipeline and master the image data of different parts of the inner wall of the pipeline, so that the detection result is comprehensive and accurate. However, the device measures the thickness of the dirt on the inner wall of the pipeline by rotating and adjusting the extending length of the measuring part through the screw rod, the screw rod needs time to retract after extending out of the shell, continuous measurement along the radial direction of the pipeline cannot be realized, and the device is inconvenient for measuring and adjusting pipelines with different pipe diameters, has a small application range and few test functions, so the structure of the device needs to be further improved.

Disclosure of Invention

The utility model aims to solve the technical problem that provide a project organization ingenious to above-mentioned prior art current situation to, can detect the pipeline of different pipe diameters to examine time measuring and can detect pipeline inner wall roughness, weld joint precision and pipeline concentricity simultaneously, and detect the precision height, detect very convenient multi-functional pipeline detection device

The utility model provides a technical scheme that above-mentioned technical problem adopted does: this multi-functional pipeline detection device, including the measuring bar, set up the detector on the measuring bar and can drive the actuating mechanism that the axial round trip movement was made to the detector, its characterized in that: the detection device also comprises a left positioning frame which can be placed at the opening of the left end of the pipeline to be detected and a right positioning frame which can be placed at the opening of the right end of the pipeline to be detected, one end of the detection rod is rotatably connected with the left positioning frame, the other end of the detection rod axially penetrates through the inner cavity of the pipeline to be detected and is rotatably connected with the right positioning frame, a driving device which can drive the detection rod to rotate is arranged on the left positioning frame or the right positioning frame, the right end of the detection rod is connected with a driven wheel on the right positioning frame when the driving device is arranged on the left positioning frame, the left end of the detection rod is connected with the driven wheel on the left positioning frame when the driving device is arranged on the right positioning frame, the detector is arranged in the middle of the detection rod, a detector which can detect the flatness, the welding seam precision and the concentricity of the pipeline to be detected is arranged on the detector, and the detector is connected with detection equipment which is positioned outside the pipeline to be detected through signals, the left positioning frame is provided with a left adjusting device which can move up and down to adjust the height of the left end of the detection rod, and the right positioning frame is provided with a right adjusting device which can move up and down to adjust the height of the right end of the detection rod.

As the improvement, the detector includes the welding seam detector that at least a set of symmetry set up and the precision measurement ware that at least a set of symmetry set up, welding seam detector and precision measurement ware are the elastic rod, and the one end of arbitrary elastic rod is connected on the measuring rod through transmission piece, and the other end of arbitrary elastic rod is provided with the connecting plate be provided with the universal wheel on the connecting plate, the universal wheel can keep the top to touch on the pipeline inner wall and can move by pipeline inner wall relatively, the transmission piece can rotate and can be followed the pipeline axial displacement by actuating mechanism drive along with the measuring rod, the detector includes infrared scanner and ultrasonic transceiver, infrared scanner sets up on the connecting plate of welding seam detector, ultrasonic transceiver sets up on precision measurement ware's connecting plate.

The improved elastic rod comprises a barrel, a spring and a rod body penetrating the barrel, the connecting plate is connected with the rod body and can slide along the rod body, the spring is sleeved on the rod body, one end of the spring is connected with the connecting plate and pushes the connecting plate to the rod body, and the other end of the spring is connected with the barrel.

The improved structure is characterized in that a length adjusting mechanism capable of adjusting the extension length of the rod body to enable the universal wheel to be kept in contact with the inner wall of the pipeline is further arranged in the barrel body.

The improved structure is characterized in that four universal wheels are arranged on a connecting plate of the precision detector, the four universal wheels are respectively arranged on four plate corners corresponding to the connecting plate, and the ultrasonic transceiver is located in the middle of the connecting plate between the four universal wheels.

As an improvement, the detection rod is a screw rod, a rotating block is sleeved on the screw rod, a thread capable of rotating along the screw rod is arranged on an inner hole of the rotating block, the detectors are distributed on the rotating block, the driving device is a screw rod driving mechanism, and the driving mechanism is an external thread of the screw rod.

As an improvement, the detection rod is a rotating cylinder, a strip-shaped through hole is axially arranged on the outer wall of the rotating cylinder, a sliding sleeve is sleeved on the rotating cylinder, the detectors are distributed on the sliding sleeve, a limiting rod penetrating through the strip-shaped through hole is connected to the sliding sleeve, the limiting rod can slide along the strip-shaped through hole, the driving mechanism is a driving cylinder, the limiting rod is connected with a cylinder arm of the driving cylinder through a universal joint, a cylinder body of the driving cylinder is connected to a left positioning frame or a right positioning frame, and the driving device is a rotating cylinder driving mechanism.

As an improvement, the detection rod is a guide cylinder, a guide sleeve is sleeved on the guide cylinder, a driving screw rod penetrates through an inner cavity of the guide cylinder, a driving sleeve is sleeved on the driving screw rod and can slide along the inner wall of the guide cylinder, a thread which can rotate along the driving screw rod is arranged on an inner hole of the driving sleeve, the detector is distributed on the guide sleeve, a guide through hole is axially formed in the outer wall of the guide cylinder, a limiting pin which penetrates through the guide through hole is connected on the guide sleeve and is connected with the driving sleeve, the driving device is a guide cylinder driving mechanism, the driving mechanism is a driving screw rod motor, and the driving screw rod motor and the guide cylinder driving mechanism are oppositely arranged.

As an improvement, the bottom of the right positioning frame is arranged on the sliding rail, a handle part is arranged on the right positioning frame, and a positioning pin capable of positioning the right positioning frame on the sliding rail when the right positioning frame moves to a specified position is arranged on the right positioning frame.

As an improvement, the pipeline detection device is used by the specific steps of,

placing a left positioning frame and a right positioning frame at corresponding positions of openings at two ends of a pipeline to be detected, and enabling a detection rod to penetrate through the pipeline to be detected so as to enable a detector to be located in an inner cavity of the pipeline to be detected;

adjusting the relative position of the detector and the pipeline to be detected, and enabling the detector to move to an opening at one end of the pipeline to be detected;

driving the detection rod to rotate by the driving device, enabling the detector to rotate along with the detection rod, driving the detector to axially move relative to the pipeline to be detected by the driving mechanism, detecting and recording pipeline data by the detector on the detector, and transmitting the detected pipeline data to the detection equipment for processing;

and fourthly, when the detector moves to the opening at the other end of the pipeline to be detected, the detection rod is withdrawn from the pipeline to be detected, and the pipeline detection operation is completed.

Compared with the prior art, the utility model has the advantages of: the detection rod is fixed by positioning frames arranged at openings at two ends of the pipeline to be detected, so that the detection rod can penetrate through the pipeline to be detected, the detection rod drives the detector to rotate, the driving mechanism enables the detector to axially move along the pipeline, the detector can axially move along the pipeline while rotating circumferentially in the detection pipeline, data of the pipeline measured by the detector is wirelessly or wiredly transmitted to a data display outside the pipeline, namely, whether a pipeline welding seam is qualified or not can be returned to an ultrasonic data receiver by ultrasonic wave, a flatness result on the inner wall of the pipeline can be transmitted to an infrared scanner data display by the infrared scanner, meanwhile, the inner diameter of the pipeline can be measured in real time by the circumferential rotation of the infrared scanner, and meanwhile, the measured data of the inner diameter is returned to a concentricity data receiver, thereby accurately measuring the concentricity (including the concentricity of the welding pipeline), the device has the advantages of multiple functions, good detection effect and convenience, and can simultaneously detect the flatness of the inner wall of the pipeline, the welding seam precision and the concentricity of the pipeline in the detection process, thereby greatly improving the detection efficiency; in addition, the position and the height of the detection rod can be adjusted by adjusting the left positioning frame and the right positioning frame, and meanwhile, the detector is an elastic telescopic rod, so that the device can be used for detecting small and medium-sized guide pipes and guide hoods for ships and various large-diameter metal pipelines in the measurement of pipelines with different diameters, and the application range is wider; moreover, the detector can comprise an infrared scanner, an ultrasonic transceiver, a radius change sensor and the like, the infrared scanner can be used as an infrared distance measuring tool on one hand, and on the other hand, collected data can be used as 3D modeling data according to requirements, so that the marking in a problem area is facilitated, and the later construction is facilitated to be completed; the ultrasonic transceiver can accurately acquire internal data of each point on the circular surface, the depth and the length of a crack can be calculated by using a welding seam formula through returned data, the welding seam crack in the steel body structure can be conveniently measured, and some hidden problems in the steel body structure can be measured; the detector is driven by the driving mechanism and the detection rod to rotate and simultaneously move axially along the inner wall of the pipeline, the whole process does not need human participation, automatic operation is realized, the detection is convenient, and the detection efficiency is high; in conclusion, the device has various detection functions, can be applied to the detection of pipelines with different pipe diameters, is convenient and efficient to install and detect, has wide application range and high detection precision, and is worthy of popularization and application.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a perspective view of FIG. 1 at another angle;

FIG. 3 is a cross-sectional view of FIG. 1 with a half of the pipe to be tested cut away to show the construction of the test rod;

FIG. 4 is a top view of FIG. 1;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 7 is an exploded view of the structure of FIG. 1;

fig. 8 is a perspective view of a second embodiment of the present invention;

FIG. 9 is a cross-sectional view taken along a vertical plane of the centerline of the rotary cylinder in FIG. 8;

fig. 10 is a perspective view of a third embodiment of the present invention;

FIG. 11 is a cross-sectional view taken along a vertical plane of the center line of the guide cylinder of FIG. 10;

FIG. 12 is an exploded view of the structure of FIG. 10;

fig. 13 is an enlarged view of portion I in fig. 12.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 7, the multifunctional pipeline detecting device of the present embodiment includes a detecting rod, a detector disposed on the detecting rod, a driving mechanism capable of driving the detector to move axially back and forth, a left positioning frame 42 capable of being placed at an opening at the left end of the pipeline 4 to be detected, and a right positioning frame 43 capable of being placed at an opening at the right end of the pipeline 4 to be detected. One end of the detection rod is rotatably connected with the left positioning frame 42, the other end of the detection rod axially penetrates through the inner cavity of the pipeline 4 to be detected and is rotatably connected with the right positioning frame 43, a driving device capable of driving the detection rod to rotate is arranged on the left positioning frame 42 or the right positioning frame 43, the right end of the detection rod is connected with a driven wheel on the right positioning frame 43 when the driving device is arranged on the left positioning frame 42, the left end of the detection rod is connected with the driven wheel on the left positioning frame 42 when the driving device is arranged on the right positioning frame 43, the detector is arranged in the middle of the detection rod, a detector capable of detecting the flatness of the inner wall of the pipeline 4 to be detected, the welding seam precision and the concentricity of the welded pipeline is arranged on the detector, the detector is connected with detection equipment positioned outside the pipeline 4 to be detected through signals, a left adjusting device 421 capable of moving up and down to adjust the height of the left end of the detection rod is arranged on the left positioning frame 42, a right adjusting device 432 that can move up and down to adjust the height of the right end of the detection rod is provided on the right positioning frame 43. The detection device may be a detection meter that can be read manually or a computer that automatically records data and automatically processes the data according to stored formulas. The pipeline 4 to be detected can be directly placed on the ground during measurement, and can be clamped and positioned through the weight block or the wedge block when placed on the ground, and the pipeline 4 to be detected can also be placed on the positioning seat 41 for fixing.

The detector includes the weld detector 1 that at least a set of symmetry set up and the precision measurement ware 2 that at least a set of symmetry set up, weld detector 1 and precision measurement ware 2 are the elastic rod, the one end of arbitrary elastic rod is connected on the detection pole through the transmission piece, the other end of arbitrary elastic rod is provided with connecting plate 3, be provided with universal wheel 31 on connecting plate 3, universal wheel 31 can keep the top to touch on the pipeline inner wall and can move relative to the pipeline inner wall, the transmission piece can rotate and can be followed pipeline axial displacement by actuating mechanism along with the detection pole, the detector includes infrared scanner 5 and ultrasonic transceiver 6, infrared scanner 5 sets up on the connecting plate 3 of weld detector 1, ultrasonic transceiver 6 sets up on the connecting plate 3 of precision measurement ware 2. The specific structure, specific circuit structure and detection principle of the infrared scanner 5 and the ultrasonic transceiver 6 are in the prior art, and therefore, they will not be described in detail. When the detector is installed on the inner wall of the pipeline, the data detected by the infrared scanner 5 and the ultrasonic transceiver 6 at the moment is used as an initial value, so that along with the movement of the detector, the infrared scanner 5 and the ultrasonic transceiver 6 can obtain pipeline data according to the detected numerical value change, and the collected data is input into the detection equipment for data processing so as to determine the data such as concentricity, roundness, roughness and the like of the pipeline 4 to be detected. Infrared scanner 5 can regard as infrared ranging's instrument on the one hand, and on the other hand also can regard the data of gathering as 3D as required as the data of modeling, marks in problem area after convenient, and the later stage construction of being convenient for is perfect. The ultrasonic transceiver 6 can be relatively accurate to obtain the internal data of each point on the circular surface, can utilize the seam formula to calculate crack depth and length through the data of passback, conveniently measure the seam crack in the steel body structure, can measure some recessive problems that exist inside the steel body structure.

The elastic rod comprises a cylinder body 10, a spring 11 and a rod body 12 penetrating in the cylinder body 10, the connecting plate 3 is connected with the rod body 12 and can slide along the rod body 12, the spring 11 is sleeved on the rod body 12, one end of the spring 11 is connected with the connecting plate 3 and pushes the connecting plate 3 to the rod body 12, and the other end of the spring 11 is connected with the cylinder body 10. A length adjusting mechanism 13 which can adjust the extending length of the rod body 12 to ensure that the universal wheel 31 is kept against the inner wall of the pipeline is also arranged in the cylinder body 10. Four universal wheels 31 are arranged on the connecting plate 3 of the precision detector 2, the four universal wheels 31 are respectively arranged on four plate body corners corresponding to the connecting plate 3, and the ultrasonic transceiver 6 is positioned in the middle of the connecting plate 3 among the four universal wheels 31. The length adjusting mechanism 13 can be a screw rod adjusting structure, an inflator, a jack and the like, the extending length of the rod body 12 can be adjusted manually, the length adjusting mechanism 13 can also be an air cylinder or an oil cylinder, and the extending length of the rod body 12 can be adjusted through circuit opening and closing. The length adjusting structure 13 is used for adjusting the extending length of the rod body 12, and because the diameter difference of the pipeline 4 to be measured is large, the extending length of the rod body needs to be adjusted in order to enable the spring 11 to keep a compressed state when the pipeline 4 to be measured with a large diameter is measured, so that the universal wheel 31 can be abutted to the inner wall of the pipeline at the initial position, and smooth measurement is ensured. If the diameter of the pipeline to be measured is only one condition, the length adjusting mechanism 13 is not needed, and the universal wheel 31 can be pressed against the inner wall of the pipeline by adopting the rod body 12 with proper length. The length adjusting mechanism 13, if controlled by a circuit, needs to be installed on a turntable which rotates synchronously with the driving mechanism and is added with a device similar to a fishing line take-up box to avoid line knotting. Supposing that in order to reduce the influence of noise on equipment devices, a low-speed stepping motor is adopted to control the rotating speed of a driving mechanism, the response speed of each device is set to be 30r/min, the take-up speed of the device is consistent with the axial moving speed of a detection rod, the problem that the measuring precision is influenced by the fact that wires and the like in a pipe are dragged and disorderly is solved, the length of a screw rod of the driving mechanism in a pipeline is two meters, the axial transmission speed of the driving mechanism is controlled to be 0.25m/min, the radius of a rotating shaft of the device similar to a fish wire take-up box is 5cm, and the rotating speed is controlled to be 0.82 pi/min

The detection rod is a screw rod 7, a rotating block 71 is sleeved on the screw rod 7, threads capable of rotating along the screw rod 7 are arranged on an inner hole of the rotating block 71, the detectors are distributed on the rotating block 71, the driving device is a screw rod driving mechanism, and the driving mechanism is external threads of the screw rod 7. The bottom of the right positioning frame 43 is arranged on the slide rail 44, the right positioning frame 43 is provided with a handle part 431, and the right positioning frame 43 is provided with a positioning pin which can position the right positioning frame 43 on the slide rail 44 when the right positioning frame 43 moves to a designated position. The screw driving mechanism has a structure known in the art, and a driving wheel can be arranged at the end of the screw 7 and connected with a driving wheel through a driving belt, and the driving wheel is connected with a screw driving motor 40. The top of the fixed support 42 is provided with a first adjusting cylinder 421 capable of adjusting the height of the top end of the fixed support 42, the top end of the fixed support 42 is connected with one end of the driving mechanism, the top of the right positioning frame 43 is provided with a second adjusting cylinder 432 capable of adjusting the height of the top end of the right positioning frame 43, and the top end of the right positioning frame 43 is connected with the other end of the driving mechanism.

The left adjusting device 421 is a first adjusting cylinder, a cylinder body of the first adjusting cylinder is connected to the left positioning frame 42, a positioning seat is arranged on a cylinder wall of the first adjusting cylinder, the lead screw 7 is connected to the positioning seat through a bearing, an end part of the lead screw 7 penetrates through the bearing to be connected with the lead screw driving mechanism, the right adjusting device 432 is a second adjusting cylinder, a cylinder body of the second adjusting cylinder is connected to the right positioning frame 43, a second positioning seat is arranged on a cylinder wall of the second adjusting cylinder, and the other end of the lead screw 7 is connected to the second positioning seat through a second bearing.

The specific steps of using the pipeline detection device are,

firstly, a left positioning frame 42 and a right positioning frame 43 are arranged at the corresponding positions of openings at two ends of a pipeline 4 to be detected, so that a detection rod penetrates through the pipeline 4 to be detected and a detector is positioned in the inner cavity of the pipeline 4 to be detected;

adjusting the relative position of the detector and the pipeline 4 to be detected, and moving the detector to an opening at one end of the pipeline 4 to be detected;

driving the detection rod to rotate by the driving device, enabling the detector to rotate along with the detection rod, driving the detector to axially move relative to the pipeline 4 to be detected by the driving mechanism, detecting and recording pipeline data by the detector on the detector, and transmitting the detected pipeline data to detection equipment for processing;

and fourthly, when the detector moves to the opening at the other end of the pipeline 4 to be detected, the detection rod is withdrawn from the pipeline 4 to be detected, and the pipeline detection operation is completed.

As shown in fig. 8 and 9, the multifunctional pipeline detecting device of the second embodiment includes a detecting rod, a detector disposed on the detecting rod, a driving mechanism capable of driving the detector to move back and forth in the axial direction, a left positioning frame 42 capable of being placed at the opening of the left end of the pipeline 4 to be detected, and a right positioning frame 43 capable of being placed at the opening of the right end of the pipeline 4 to be detected. One end of the detection rod is rotatably connected with the left positioning frame 42, the other end of the detection rod axially penetrates through the inner cavity of the pipeline 4 to be detected and is rotatably connected with the right positioning frame 43, a driving device capable of driving the detection rod to rotate is arranged on the left positioning frame 42 or the right positioning frame 43, the right end of the detection rod is connected with a driven wheel on the right positioning frame 43 when the driving device is arranged on the left positioning frame 42, the left end of the detection rod is connected with the driven wheel on the left positioning frame 42 when the driving device is arranged on the right positioning frame 43, the detector is arranged in the middle of the detection rod, a detector capable of detecting the flatness of the inner wall of the pipeline 4 to be detected, the welding seam precision and the concentricity of the welded pipeline is arranged on the detector, the detector is connected with detection equipment positioned outside the pipeline 4 to be detected through signals, a left adjusting device 421 capable of moving up and down to adjust the height of the left end of the detection rod is arranged on the left positioning frame 42, a right adjusting device 432 that can move up and down to adjust the height of the right end of the detection rod is provided on the right positioning frame 43.

The detector includes the weld detector 1 that at least a set of symmetry set up and the precision measurement ware 2 that at least a set of symmetry set up, weld detector 1 and precision measurement ware 2 are the elastic rod, the one end of arbitrary elastic rod is connected on the detection pole through the transmission piece, the other end of arbitrary elastic rod is provided with connecting plate 3, be provided with universal wheel 31 on connecting plate 3, universal wheel 31 can keep the top to touch on the pipeline inner wall and can move relative to the pipeline inner wall, the transmission piece can rotate and can be followed pipeline axial displacement by actuating mechanism along with the detection pole, the detector includes infrared scanner 5 and ultrasonic transceiver 6, infrared scanner 5 sets up on the connecting plate 3 of weld detector 1, ultrasonic transceiver 6 sets up on the connecting plate 3 of precision measurement ware 2. The elastic rod comprises a cylinder body 10, a spring 11 and a rod body 12 penetrating in the cylinder body 10, the connecting plate 3 is connected with the rod body 12 and can slide along the rod body 12, the spring 11 is sleeved on the rod body 12, one end of the spring 11 is connected with the connecting plate 3 and pushes the connecting plate 3 to the rod body 12, and the other end of the spring 11 is connected with the cylinder body 10. A length adjusting mechanism 13 which can adjust the extending length of the rod body 12 to ensure that the universal wheel 31 is kept against the inner wall of the pipeline is also arranged in the cylinder body 10. Four universal wheels 31 are arranged on the connecting plate 3 of the precision detector 2, the four universal wheels 31 are respectively arranged on four plate body corners corresponding to the connecting plate 3, and the ultrasonic transceiver 6 is positioned in the middle of the connecting plate 3 among the four universal wheels 31.

The detection rod is a rotating cylinder 8, a strip-shaped through hole is axially arranged on the outer wall of the rotating cylinder 8, a sliding sleeve 81 is sleeved on the rotating cylinder 8, the detector is distributed on the sliding sleeve 81, a limiting rod 83 penetrating through the strip-shaped through hole is connected to the sliding sleeve 81, the limiting rod 83 can slide along the strip-shaped through hole, the driving mechanism is a driving cylinder 84, the limiting rod 83 is connected with a cylinder arm of the driving cylinder 84 through a universal joint, a cylinder body of the driving cylinder 84 is connected to the left positioning frame 42 or the right positioning frame 43, and the driving device is a rotating cylinder driving mechanism. The bottom of the right positioning frame 43 is arranged on the slide rail 44, the right positioning frame 43 is provided with a handle part 431, and the right positioning frame 43 is provided with a positioning pin which can position the right positioning frame 43 on the slide rail 44 when the right positioning frame 43 moves to a designated position. The specific structure of the rotary drum driving mechanism belongs to the known technology, and therefore, the detailed description is not provided.

The left adjusting device 421 is a first adjusting cylinder, a cylinder body of the first adjusting cylinder is connected to the left positioning frame 42, a positioning seat is arranged on a cylinder wall of the first adjusting cylinder, the rotating cylinder 8 is connected to the positioning seat through a bearing, the end part of the rotating cylinder 8 penetrates through the bearing to be connected with the mechanism driven by the rotating cylinder, the right adjusting device 432 is a second adjusting cylinder, a cylinder body of the second adjusting cylinder is connected to the right positioning frame 43, a second positioning seat is arranged on a cylinder wall of the second adjusting cylinder, and the other end of the rotating cylinder 8 is connected to the second positioning seat through a second bearing.

The specific steps of using the pipeline detection device are,

As shown in fig. 10 to 13, the multifunctional pipeline detecting device of the third embodiment includes a detecting rod, a detector disposed on the detecting rod, a driving mechanism capable of driving the detector to move back and forth in the axial direction, a left positioning frame 42 capable of being placed at the left end opening of the pipeline 4 to be detected, and a right positioning frame 43 capable of being placed at the right end opening of the pipeline 4 to be detected. One end of the detection rod is rotatably connected with the left positioning frame 42, the other end of the detection rod axially penetrates through the inner cavity of the pipeline 4 to be detected and is rotatably connected with the right positioning frame 43, a driving device capable of driving the detection rod to rotate is arranged on the left positioning frame 42 or the right positioning frame 43, the right end of the detection rod is connected with a driven wheel on the right positioning frame 43 when the driving device is arranged on the left positioning frame 42, the left end of the detection rod is connected with the driven wheel on the left positioning frame 42 when the driving device is arranged on the right positioning frame 43, the detector is arranged in the middle of the detection rod, a detector capable of detecting the flatness of the inner wall of the pipeline 4 to be detected, the welding seam precision and the concentricity of the welded pipeline is arranged on the detector, the detector is connected with detection equipment positioned outside the pipeline 4 to be detected through signals, a left adjusting device 421 capable of moving up and down to adjust the height of the left end of the detection rod is arranged on the left positioning frame 42, a right adjusting device 432 that can move up and down to adjust the height of the right end of the detection rod is provided on the right positioning frame 43.

The detection rod is a guide cylinder 9, a guide sleeve 91 is sleeved on the guide cylinder 9, a driving screw 92 is arranged in an inner cavity of the guide cylinder 9 in a penetrating mode, a driving sleeve 93 is sleeved on the driving screw 92, the driving sleeve 93 can slide along the inner wall of the guide cylinder 9, threads capable of rotating along the driving screw 92 are arranged on an inner hole of the driving sleeve 93, the detector is distributed on the guide sleeve 91, a guide through hole 94 is axially arranged on the outer wall of the guide cylinder 9, a limiting pin 95 penetrating through the guide through hole 94 is connected to the guide sleeve 91, the limiting pin 95 is connected with the driving sleeve 93, the driving device is a guide cylinder driving mechanism, the driving mechanism is a driving screw rod motor 921, and the driving screw rod motor 921 is arranged opposite to the guide cylinder driving mechanism. The bottom of the right positioning frame 43 is arranged on the slide rail 44, the right positioning frame 43 is provided with a handle part 431, and the right positioning frame 43 is provided with a positioning pin which can position the right positioning frame 43 on the slide rail 44 when the right positioning frame 43 moves to a designated position. The specific structure of the guide cylinder driving mechanism belongs to the known technology, and therefore, the detailed description is not provided. The circuit and the pipeline can extend out of the inner cavity of the guide cylinder 9 to be connected with the detection equipment, and in order to avoid winding of the circuit, the extending end of the circuit and the pipeline, a power supply, an air source and the like need to be arranged on a rotating disc rotating synchronously with the guide cylinder. Of course, if only the electric wire is extended, the rotating disc can be replaced by a bearing so as to reduce the installation volume.

The left adjusting device 421 is a first adjusting cylinder, a cylinder body of the first adjusting cylinder is connected to the left positioning frame 42, a positioning seat is arranged on a cylinder wall of the first adjusting cylinder, the guide cylinder 9 is connected to the positioning seat through a bearing, an end part of the guide cylinder 9 penetrates through the bearing to be connected with the guide cylinder driving mechanism, the right adjusting device 432 is a second adjusting cylinder, a cylinder body of the second adjusting cylinder is connected to the right positioning frame 43, a second positioning seat is arranged on a cylinder wall of the second adjusting cylinder, and the other end of the guide cylinder 9 is connected to the second positioning seat through a second bearing.

The specific steps of using the pipeline detection device are,

The working principle is as follows: the pipeline detection device is a multifunctional precision detection device for pipelines. The device is mainly characterized in that support frames are arranged on two sides of the device, a motor is fixedly connected onto the support frames, a driving belt wheel is fixedly connected onto an output shaft of the motor, and a driven belt wheel is connected with the driving belt wheel through a transmission belt. The transmission shaft is connected with the support frame in a rotating mode, and the transmission block is connected to the threaded transmission shaft through internal threads. Four fixing rods are respectively connected to the periphery of the transmission block, two of the fixing rods are welding seam detectors, the other two fixing rods are precision detectors, a rotating shaft is rotatably arranged on the fixing frame, and rollers are fixedly connected to the rotating shaft. When the device starts, the motor operates to drive the driving belt wheel to operate, the driving belt wheel is driven to operate through the driving belt, then the transmission shaft is rotated to drive the transmission block to rotate, the transmission block rotates on the transmission shaft and moves axially, and the rollers on the fixed rods roll on the inner walls of various guide pipes. The internal condition of the pipe body is stably detected on the basis of stabilizing the rotating speed. The length of the fixed rod is automatically controlled by the spring after the stretching rod is unfastened, and the data of the collecting pipeline can be measured under the condition that the initial data is completely input, so that the data of the coaxiality, the roundness, the roughness and the like of the fixed rod can be determined, and the problem of the internal quality of the pipeline structure can be detected. The device has the advantages of convenient detection, high working efficiency and the like, and is mainly used for detecting small and medium-sized honeycomb ducts and air guide sleeves for ships and various large-diameter metal pipelines.

The guide pipe is a device which can make a large amount of water flow pass through the propeller and then unify the flow direction of the water flow. The honeycomb duct is used for improving the propelling efficiency of the propeller and preventing the propeller from paddling to cause loss due to different water flow directions. The guide pipe and the propeller are arranged on the same axis, and the matching of the guide pipe and the propeller is directly influenced by the manufacturing precision of the guide pipe and the propeller. For the welding of the guide pipe, the manual welding pipe often has the problems that a welding seam appears inside, the coaxiality generated by misalignment in the welding process is deviated, the metal guide pipe has some tiny pipe wall unevenness inside, and the like. The uneven and smooth pipe wall can cause the change of the water flow direction at uneven positions, and besides the water flow at the uneven positions, the normal water flow of other flow directions can be influenced, so that partial loss occurs; if the coaxiality between the pipe walls is deviated, all water flow on the pipe walls at the intersection of the deviation is lost; the existence of weld cracks inside the guide pipe can lead the service life of the guide pipe to slide downwards, and the guide pipe falls off in the process of sailing. In order to quickly and conveniently measure the roughness and the coaxiality of a target pipeline and the internal structural integrity of some metal guide pipes. The manual operation is reduced, and the detection work is changed into semi-automatic work, so that the work efficiency is improved.

The utility model discloses there is above-mentioned problem to current technique, has provided a design benefit, has detected the pipeline precision detection device that the precision is high, work efficiency is high, and this detection device mainly used detects the inner wall machining precision of marine honeycomb duct.

The specific technical scheme is as follows:

the device both sides are the support frame, have linked firmly the motor on the support frame, have linked firmly driving pulley on the output shaft of motor, and driven pulley and driving pulley pass through the drive belt and connect. The internal condition of the pipe body is stably detected on the basis of stabilizing the rotating speed. The transmission shaft is connected with the support frame in a rotating mode, and the transmission block is connected to the threaded transmission shaft through internal threads.

Four fixing rods are respectively connected to the periphery of the transmission block, two of the fixing rods are welding seam detectors, the other two fixing rods are precision detectors, a rotating shaft is rotatably arranged on the fixing frame, and rollers are fixedly connected to the rotating shaft. When the device starts, the motor operates to drive the driving belt wheel to operate, the driving belt wheel is driven to operate through the driving belt, then the transmission shaft is rotated to drive the transmission block to rotate, the transmission block rotates on the transmission shaft and moves axially, and the rollers on the fixed rods roll on the inner walls of various guide pipes. The length of the fixed rod is automatically controlled by the spring after the stretching rod is unfastened, so that the inner wall of the flow guide pipe can be measured under the condition of complete input of initial data.

In the device, the hydraulic control device is arranged in the support frame, so that the ascending and descending of the connecting rod can be conveniently adjusted, and the requirements of guide pipes with different calibers and manual inspection on the outer walls of the guide pipes can be met. The support frame is fixedly connected with a low-speed stepping motor, in order to reduce the influence of noise on equipment devices, the low-speed stepping motor is adopted to control the rotating speed, and the rotating speed is set to be 30r/min according to the response speed of each device. Contain the line box of receiving of a principle similar to the fishing rod in device left side position, the take-up speed of device is unanimous with driving block moving speed, prevents that intraductal electric wire etc. from appearing dragging the problem of indiscriminate position influence measurement accuracy. Taking a transmission shaft of two meters as an example, the transmission speed is controlled at 0.25m/min, and the rotating speed of the take-up box is controlled at 0.82 pi/min taking a rotating shaft with the radius of 5cm as an example. A metal plate is arranged on the detection rod, a universal wheel is arranged in the center of the metal plate, and when the device runs, the universal wheel rolls on the inner wall of the flow guide pipe. When the device detects the internal diameter of honeycomb duct, the length of detection pole is adjusted by the air pump, and compression spring reaches in the honeycomb duct, later removes the control of pull rod to the spring, detects the work. On the welding seam detector, the left end 3cm department of metal fixing plate universal wheel has set up the infrared scanner, can regard as infrared ranging's instrument on the one hand, and on the other hand also can regard as the data of 3D modeling as required, marks in the problem area after convenient, and the later stage construction of being convenient for is perfect. Four universal wheels are respectively arranged at four corners of a metal plate on the precision detector, an ultrasonic transceiver is additionally arranged in the middle of the metal plate and is directly linked with a spring to be in real-time contact with the pipe wall, internal data of each point on a circular surface can be accurately obtained, and the crack depth and the crack length can be calculated by utilizing a welding seam formula through return data. The welding seam crack in the steel body structure is conveniently measured, and some recessive problems in the steel body structure can be measured.

The rotary scanning detection precision of the scanning camera on the fixed rod is realized, the ultrasonic wave is transmitted and received, the data is transmitted and returned to be processed, the axis of the device is used as the original point, the scanned data and normal standard data input into the equipment are compared and modeled, and the position and the approximate situation of the problem can be reflected visually in a concrete mode through the 3D MAX technology.

When the retest work of precision detection is carried out, divide into two sets of dead lever, welding seam detection group and precision detection group. Each group is provided with two fixed rods, and the two fixed rods are staggered in pairs on a line graph of returned data for collection. And if the data have fluctuation, selecting the upper and lower average values as standard data.

In conclusion, the device has the advantages and beneficial effects that:

1. and combining the real-time precision measurement with the virtual ideal model to carry out real-time recording on abnormal data.

2. And the whole structure in the guide pipe is fed back and received through an ultrasonic receiving and transmitting device, and the internal condition is further calculated by the terminal through a feedback signal.

3. Is a novel rotating shaft type measuring mode.

4. The device improves the method for detecting the shape precision of the guide pipe in the current shipbuilding enterprises, and not only can the guide pipe be measured through the spring telescopic rod, but also the guide cover can be measured.

5. The device can control the length of a single device bracket through the telescopic rod of the fixed bracket, so that various guide pipes meeting the size requirement between the maximum caliber and two thirds of the maximum caliber can be precisely measured.

6. The operation mode that traditional industry wasted time and energy is changed, bring detection work into semi-automatization automation orbit, liberate the labour. More high-quality workers are put into production innovation, and the industrial technical level, the detection precision and the production detection speed are improved. The accuracy detection efficiency of the guide pipe is integrally improved.

7. The target flow guide pipe can be quickly and accurately detected by the existing transmission means, scanning technology, ultrasonic detection means, computer software technology and simple physical principle summarization. The calculation and inspection process which originally needs abundant experience and is complicated in complicated technical means is changed into semi-automatic operation with mechanical operation.

The both sides of device have the support frame, have linked firmly the motor on the support frame of one side, have linked firmly driving pulley on the output shaft of motor, and driven pulley and driving pulley pass through the drive belt and connect. The transmission shaft is rotatably connected with the support frame. When the device starts, the motor operates to drive the driving belt wheel to operate, and the driving belt wheel drives the driven belt wheel to operate through the driving belt, so that the transmission shaft rotates. The transmission block is connected to the threaded transmission shaft through internal threads. Four fixing rods are respectively connected to the periphery of the transmission block, two of the four fixing rods are welding seam detectors, and the other two fixing rods are precision detectors. The fixed frame is rotatably provided with a rotating shaft, and the rotating shaft is fixedly connected with a roller. When the device starts, the transmission shaft rotates to drive the transmission block to rotate, the transmission block rotates on the transmission shaft and moves axially, and the rollers on the fixed rods roll on the inner walls of various flow guide pipes. The length of the fixed rod is automatically controlled by the spring after the stretching rod is unfastened, so that the data of the inner wall of the pipeline can be measured and collected under the condition of complete input of initial data, the data of the coaxiality, the roundness, the roughness and the like of the fixed rod can be determined, and the problem of the internal quality of the pipeline structure can be detected. When the device detects the internal diameter of honeycomb duct, adjust the length of detection pole by the air pump, in compression spring arrived specific honeycomb duct, later removed the pull rod to the control of spring, carried out detection achievement. A metal plate is arranged on the welding seam detector, a universal wheel is arranged in the center of the metal plate, and when the device runs, the universal wheel rolls on the inner wall of the flow guide pipe. A short-range infrared scanner is arranged at the position 3cm away from the left end of the universal wheel of the metal fixing plate on the fixing rod of the device. On the one hand, the system can be used as an infrared distance measuring tool, on the other hand, the system can also be used as 3D modeling data as required, and the system can be conveniently marked in a problem area, so that the later construction is complete. There are four universal wheels in four corners respectively on precision detector's metal sheet, an ultrasonic transceiver has been installed additional to the centre, with spring direct linkage and pipe wall real-time contact, the rotatory scanning detection precision of scanning camera on the dead lever, the inside data of each point on the acquisition disc that can be comparatively accurate, send out the ultrasonic wave and receive data passback the processing, use the axle center of device as the initial point and with scanning gained data and type in the normal standard data contrast modeling of equipment, can be concrete audio-visual problem position and general condition of reflecting through computer technology 3D MAX. The method is convenient for measuring the weld cracks in the steel body structure, and has some hidden problems inside.

Claims

1. The utility model provides a multi-functional pipeline detection device, is including the measuring pole, set up the detector on the measuring pole and can drive the actuating mechanism that the axial round trip movement was made to the detector, its characterized in that: the detection device further comprises a left positioning frame (42) capable of being placed at an opening at the left end of the pipeline (4) to be detected and a right positioning frame (43) capable of being placed at an opening at the right end of the pipeline (4) to be detected, one end of the detection rod is rotatably connected with the left positioning frame (42), the other end of the detection rod axially penetrates through an inner cavity of the pipeline (4) to be detected and is rotatably connected with the right positioning frame (43), a driving device capable of driving the detection rod to rotate is arranged on the left positioning frame (42) or the right positioning frame (43), the right end of the detection rod is connected with a driven wheel on the right positioning frame (43) when the driving device is arranged on the left positioning frame (42), the left end of the detection rod is connected with the driven wheel on the left positioning frame (42) when the driving device is arranged on the right positioning frame (43), the detector is arranged in the middle of the detection rod, and the detector is arranged on the left positioning frame and can detect the flatness of the inner wall of the pipeline (4) to be detected, The detector for the welding seam precision and the concentricity of the welded pipeline is characterized in that the detector is connected with detection equipment outside a pipeline (4) to be detected through signals, a left adjusting device (421) capable of moving up and down to adjust the height of the left end of a detection rod is arranged on a left positioning frame (42), and a right adjusting device (432) capable of moving up and down to adjust the height of the right end of the detection rod is arranged on a right positioning frame (43).

2. The pipeline inspection device of claim 1, wherein: the detector comprises at least one group of symmetrically arranged welding seam detectors (1) and at least one group of symmetrically arranged precision detectors (2), the welding seam detector (1) and the precision detector (2) are both elastic rods, one end of any elastic rod is connected to the detection rod through a transmission block, the other end of any elastic rod is provided with a connecting plate (3), the connecting plate (3) is provided with a universal wheel (31), the universal wheel (31) can be kept in contact with the inner wall of the pipeline and can move relative to the inner wall of the pipeline, the transmission block can rotate along with the detection rod and can be driven by the driving mechanism to move along the axial direction of the pipeline, the detector comprises an infrared scanner (5) and an ultrasonic transceiver (6), the infrared scanner (5) is arranged on the connecting plate (3) of the welding seam detector (1), the ultrasonic transceiver (6) is arranged on the connecting plate (3) of the precision detector (2).

3. The pipeline inspection device of claim 2, wherein: the elastic rod comprises a barrel body (10), a spring (11) and a rod body (12) penetrating the barrel body (10), the connecting plate (3) is connected with the rod body (12) and can slide along the rod body (12), the spring (11) is sleeved on the rod body (12), one end of the spring (11) is connected with the connecting plate (3) and pushes the connecting plate (3) to the rod body (12), and the other end of the spring (11) is connected with the barrel body (10).

4. The pipeline inspection device of claim 3, wherein: the barrel (10) is also provided with a length adjusting mechanism (13) which can adjust the extension length of the rod body (12) to ensure that the universal wheel (31) keeps propping against the inner wall of the pipeline.

5. The pipeline inspection device of claim 3, wherein: four universal wheels (31) are arranged on a connecting plate (3) of the precision detector (2), the four universal wheels (31) are respectively arranged on four plate body corners corresponding to the connecting plate (3), and the ultrasonic transceiver (6) is positioned in the middle of the connecting plate (3) between the four universal wheels (31).

6. The pipeline inspection device according to any one of claims 1 to 5, wherein: the detection rod is a screw rod (7), a rotating block (71) is sleeved on the screw rod (7), threads capable of rotating along the screw rod (7) are arranged on an inner hole of the rotating block (71), the detectors are distributed on the rotating block (71), the driving device is a screw rod driving mechanism, and the driving mechanism is an external thread of the screw rod (7).

7. The pipeline inspection device according to any one of claims 1 to 5, wherein: the detection rod is a rotating cylinder (8), a strip-shaped through hole is axially formed in the outer wall of the rotating cylinder (8), a sliding sleeve (81) is sleeved on the rotating cylinder (8), the detectors are distributed on the sliding sleeve (81), a limiting rod (83) penetrating through the strip-shaped through hole is connected to the sliding sleeve (81), the limiting rod (83) can slide along the strip-shaped through hole, the driving mechanism is a driving cylinder (84), the limiting rod (83) is connected with a cylinder arm of the driving cylinder (84) through a universal joint, a cylinder body of the driving cylinder (84) is connected to a left positioning frame (42) or a right positioning frame (43), and the driving device is a rotating cylinder driving mechanism.

8. The pipeline inspection device according to any one of claims 1 to 5, wherein: the detection rod is a guide cylinder (9), a guide sleeve (91) is sleeved on the guide cylinder (9), a driving screw rod (92) is arranged in the inner cavity of the guide cylinder (9) in a penetrating way, a driving sleeve (93) is sleeved on the driving screw rod (92), the driving sleeve (93) can slide along the inner wall of the guide cylinder (9), the inner hole of the driving sleeve (93) is provided with a thread which can rotate along the driving screw rod (92), the detectors are distributed on the guide sleeve (91), a guide through hole (94) is axially arranged on the outer wall of the guide cylinder (9), the guide sleeve (91) is connected with a limit pin (95) which passes through the guide through hole (94), the limiting pin (95) is connected with a driving sleeve (93), the driving device is a guide cylinder driving mechanism, the driving mechanism is a driving screw motor (921), and the driving screw motor (921) is arranged opposite to the guide cylinder driving mechanism.

9. The pipeline inspection device according to any one of claims 1 to 5, wherein: the bottom of the right positioning frame (43) is arranged on the sliding rail (44), a handle part (431) is arranged on the right positioning frame (43), and a positioning pin capable of positioning the right positioning frame (43) on the sliding rail (44) when the right positioning frame (43) moves to a specified position is arranged on the right positioning frame (43).