Traction crawler for X-ray flaw detector
By introducing adjustable stabilization mechanism and driving mechanism into the traction crawler of the X-ray flaw detector, the problem of not being able to adapt to pipes of different diameters in the prior art is solved, and the rapid and accurate detection of the traction crawler in different pipes is achieved. sex.
Patent Information
- Application Number
- CN202420813790.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-18
AI Technical Summary
The existing traction crawlers for X-ray flaw detectors have simple structures, and the stability mechanism is unadjustable, so they cannot adapt to pipes of different diameters, which leads to the need to replace different traction crawlers during detection, which is troublesome to operate.
A traction crawler including a housing, an adjustable stabilization mechanism and a driving mechanism is designed. The motor controls the motor to adjust the expansion angle of the stable legs, so that the traction crawler can automatically adapt to pipes of different diameters to ensure contact with the inner wall of the pipe. And make progress through the drive mechanism.
The rapid and accurate detection of the traction crawler in pipes of different diameters is achieved, ensuring the accuracy of the inspection and the safety of the equipment, and avoiding the risk of equipment being lost.
Smart Images
Figure CN222186254U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline flaw detection, in particular to a traction crawler for an X-ray flaw detector. Background Art
[0002] Pipeline transportation plays an increasingly important role in the development of my country's energy industry. Most industrial pipeline projects such as oil and natural gas use welded pipelines. In order to ensure the welding quality and operation safety of welded pipelines, pipeline projects must inspect welds to detect whether there are welding defects such as cold welding, leaking welding, and scars in the welding parts. The commonly used pipeline weld inspection method is to use X-ray flaw detectors to perform flaw detection. Due to the particularity of pipeline transportation, the transportation pipeline is relatively narrow and long. When using X-ray flaw detectors for flaw detection, a traction crawler is required. When the existing X-ray flaw detector works with a traction crawler, first connect the trolley carrying the X-ray flaw detector to the traction crawler, and then connect the traction crawler to the trolley. The device is placed together with the trolley into the pipeline, and then the traction crawler is controlled to move forward. The X-ray flaw detector will detect defects on the pipeline along the way. In order to ensure the accuracy of the detection and the safety of the equipment, a stabilizing device needs to be set on the traction crawler to make the traction crawler always in contact with the pipe wall to ensure that the traction crawler will not overturn when moving in the pipeline, causing the equipment to be left inside the pipeline. The traditional traction crawler for X-ray flaw detector has a simple structure, and the stabilizing mechanism cannot be adjusted. It cannot adapt to pipelines of various diameters. When detecting pipelines of different diameters, different traction crawlers need to be replaced, which is quite troublesome. For this reason, we propose a traction crawler for X-ray flaw detector. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a traction crawler for an X-ray flaw detector, which is equipped with an adjustable stabilizing mechanism and can quickly and accurately automatically adjust the expansion angle according to the diameter of the pipeline, so that the traction crawler is always in contact with the inner wall of the pipeline without affecting the travel efficiency, thereby ensuring the accuracy of detection and the safety of the equipment, and can effectively solve the problems in the background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a traction crawler for an X-ray flaw detector, comprising a housing, an adjustable stabilizing mechanism and a driving mechanism;
[0005] Shell: A traction ring is fixedly connected to the middle part of its lower end;
[0006] Adjustable stabilizing mechanism: it is arranged on the upper end of the outer surface of the shell;
[0007] Driving mechanism: It is arranged at the lower end of the inner part of the shell, and the adjustable stabilizing mechanism is installed in coordination with the driving mechanism;
[0008] Among them: it also includes a battery and a single-chip microcomputer. The battery is fixedly connected to the middle of the front side wall of the shell to provide power for the body. The single-chip microcomputer is fixedly connected to the middle of the right side of the shell. The input end of the single-chip microcomputer is electrically connected to the output end of the battery to provide a control effect for the flaw detection work. An adjustable stabilization mechanism is provided, which can quickly, accurately and automatically adjust the expansion angle according to the diameter of the pipeline, so that the traction crawler is always in contact with the inner wall of the pipeline without affecting the travel efficiency, thereby ensuring the accuracy of the detection and the safety of the equipment.
[0009] Furthermore, the adjustable stabilizing mechanism includes stabilizing legs, stabilizing wheels, connecting rods and rings. The stabilizing legs are rotatably connected to the upper end of the outer surface of the shell through a pin shaft, the stabilizing wheels are arranged at the upper ends of the stabilizing legs, the connecting rods are rotatably connected to one end of the stabilizing legs close to the center of the shell, and the upper ends of the four connecting rods are rotatably connected to the outer surface of a ring, so that the expansion angle of the stabilizing legs can be quickly adjusted.
[0010] Furthermore, the adjustable stabilizing mechanism also includes a screw rod and a limit block. The screw rod is rotatably connected to the middle part of the upper end of the shell, the outer surface of the screw rod is threadedly connected to the inner wall of the ring, and the limit block is fixedly connected to the upper end of the screw rod, providing a basis for adjusting the stabilizing leg.
[0011] Furthermore, the adjustable stabilizing mechanism also includes motor 1, which is fixedly connected to the middle of the top wall of the shell, the input end of motor 1 is electrically connected to the output end of the single-chip microcomputer, and the upper end of the output shaft of motor 1 is fixedly connected to the lower end of the screw rod, providing stable drive for the adjustment of the adjustable stabilizing mechanism.
[0012] Furthermore, the driving mechanism includes a driving wheel, a reduction gear box and a chain. The driving wheel is rotatably connected to the lower end of the shell, and the reduction gear box is fixedly connected to the inner lower end of the shell. Sprockets are provided on the middle part of the driving wheel and the output shaft of the reduction gear box. The two sprockets are connected by a chain transmission, providing a basis for the driving work.
[0013] Furthermore, the driving mechanism also includes motor 2, which is arranged in the middle of the rear side wall of the shell, the input end of motor 2 is electrically connected to the output end of the single-chip microcomputer, and the lower end of the output shaft of motor 2 is fixedly connected to the reduction shaft of the reduction box, providing stable drive for the driving mechanism.
[0014] Furthermore, it also includes an auxiliary wheel, which is rotatably connected to the upper left end of the shell to provide auxiliary support for the body.
[0015] Compared with the prior art, the utility model has the following beneficial effects: the traction crawler for the X-ray flaw detector has the following advantages:
[0016] 1. The single-chip microcomputer controls the motor to rotate forward, and the output shaft of the motor drives the screw to rotate. The collar moves downward with the rotation of the screw. As the collar moves downward, the collar continuously squeezes the upper end of the connecting rod, causing the lower end of the connecting rod to slowly expand outward, and the stabilizing legs expand outward synchronously until the stabilizing wheel contacts the inner wall of the pipe. At this time, the stabilizing effect of the traction crawler is optimal. When it is necessary to enter a pipe with a diameter that is too large or too small, only the single-chip microcomputer needs to control the operation of the motor to adjust the angle of the stabilizing legs by moving the collar up and down. When the pipe diameter is too large, the motor rotates forward, the collar moves down, and the stabilizing legs deflect outward. When the pipe diameter is too small, the motor reverses, the collar moves up, and the stabilizing legs deflect outward and inward. An adjustable stabilizing mechanism is provided, which can quickly and accurately adjust the expansion angle according to the pipe diameter.
[0017] 2. The single chip microcomputer controls the operation of motor 2. The output end of motor 2 drives the reduction box to work. The reduction box reduces the power and then transmits it to the drive wheel through the chain. The drive wheel rotates to drive the traction crawler to move forward, and the trolley carrying the X-ray flaw detector moves forward synchronously. The X-ray flaw detector inspects the inner wall of the pipeline along the way, ensuring the accuracy of the detection and the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the structure of the utility model;
[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the adjustable stabilizing mechanism and the driving mechanism of the utility model;
[0020] Figure 3 It is a schematic diagram of the structure of the adjustable stabilizing mechanism and the driving mechanism of the utility model.
[0021] In the figure: 1 housing, 2 traction ring, 3 adjustable stabilizing mechanism, 31 stabilizing legs, 32 stabilizing wheels, 33 connecting rods, 34 collars, 35 screw rods, 36 limit blocks, 37 motor 1, 4 driving mechanism, 41 driving wheel, 42 reduction box, 43 chain, 44 motor 2, 5 auxiliary wheels, 6 batteries, 7 single-chip microcomputer. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] See also Figure 1-3,This embodiment provides a technical solution: a traction crawler for an X-ray flaw detector, comprising a housing 1, an adjustable stabilizing mechanism 3 and a driving mechanism 4;
[0024] Shell 1: A traction ring 2 is fixedly connected to the middle of its lower end, which is convenient for connecting to an external trolley, and also includes an auxiliary wheel 5, which is rotatably connected to the upper left end of the shell 1 to provide auxiliary support for the machine body;
[0025] Adjustable stabilizing mechanism 3: It is arranged at the upper end of the outer surface of the shell 1. The adjustable stabilizing mechanism 3 includes stabilizing legs 31, stabilizing wheels 32, connecting rods 33 and collars 34. The stabilizing legs 31 are rotatably connected to the upper end of the outer surface of the shell 1 through a pin shaft. The stabilizing wheels 32 are arranged at the upper ends of the stabilizing legs 31. The stabilizing wheels 32 protrude outward to ensure that the stabilizing wheels 32 can contact the inner wall of the pipeline. The connecting rods 33 are rotatably connected to one end of the stabilizing legs 31 close to the center of the shell 1. The upper ends of the four connecting rods 33 are rotatably connected to the outer surface of a collar 34, so that the stabilizing legs 31 can be quickly adjusted. The expansion angle, the adjustable stabilizing mechanism 3 also includes a screw 35 and a limit block 36, the screw 35 is rotatably connected to the middle of the upper end of the shell 1, the outer surface of the screw 35 is threadedly connected to the inner wall of the collar 34, and the limit block 36 is fixedly connected to the upper end of the screw 35, providing a basis for the adjustment of the stabilizing leg 31, and the adjustable stabilizing mechanism 3 also includes a motor 37, which is fixedly connected to the middle of the top wall of the shell 1, the input end of the motor 37 is electrically connected to the output end of the single-chip computer 7, and the upper end of the output shaft of the motor 37 is fixedly connected to the lower end of the screw 35, providing a stable drive for the adjustment of the adjustable stabilizing mechanism 3;
[0026] Driving mechanism 4: It is arranged at the lower end of the inner part of the shell 1, and the adjustable stabilizing mechanism 3 is installed in cooperation with the driving mechanism 4. The driving mechanism 4 includes a driving wheel 41, a reduction box 42 and a chain 43. The driving wheel 41 is rotatably connected to the lower end of the shell 1. The outer surface of the driving wheel 41 is provided with a uniformly distributed anti-skid pattern. The reduction box 42 is fixedly connected to the inner lower end of the shell 1. The middle part of the driving wheel 41 and the output shaft of the reduction box 42 are both provided with sprockets. The two sprockets are connected by a chain 43 to provide a basis for the driving work. The driving mechanism 4 also includes a motor 44. The motor 44 is arranged in the middle part of the rear side wall of the shell 1. The input end of the motor 44 is electrically connected to the output end of the single-chip computer 7. The lower end of the output shaft of the motor 44 is fixedly connected to the reduction shaft of the reduction box 42 to provide a stable drive for the driving mechanism 4.
[0027] Among them: it also includes a battery 6 and a single-chip computer 7. The battery 6 is fixedly connected to the middle of the front side wall of the shell 1 to provide power for the body. The single-chip computer 7 is fixedly connected to the middle of the right side of the shell 1. The input end of the single-chip computer 7 is electrically connected to the output end of the battery 6 to provide a control effect for the flaw detection work. An adjustable stabilizing mechanism is provided, which can quickly, accurately and automatically adjust the expansion angle according to the diameter of the pipeline, so that the traction crawler is always in contact with the inner wall of the pipeline without affecting the travel efficiency, thereby ensuring the accuracy of the detection and the safety of the equipment.
[0028] The working principle of a traction crawler for an X-ray flaw detector provided by the utility model is as follows: when performing pipeline flaw detection, the X-ray flaw detector is first fixed on a trolley, and then the traction crawler is connected to the trolley through a traction ring 2, and the traction crawler and the trolley are placed inside the pipeline together, and the single chip computer 7 controls the motor 37 to rotate forward, and the output shaft of the motor 37 drives the screw rod 35 to rotate. Because the outer surface of the screw rod 35 is threadedly connected to the inner wall of the collar 34, the collar 34 will move downward as the screw rod 35 rotates. Because the stabilizing legs 31 are all rotatably connected to the upper end of the outer surface of the shell 1 through a pin, the connecting rods 33 are all rotatably connected to the end of the stabilizing legs 31 close to the center of the shell 1, and the upper ends of the four connecting rods 33 are rotatably connected to the outer surface of a collar 34, so as the collar 34 moves downward, the collar 34 continuously squeezes the upper end of the connecting rod 33, so that the lower end of the connecting rod 33 slowly expands outward, and the stabilizing legs 31 expand outward synchronously until the stabilizing wheels 32 contact the inner wall of the pipeline, at which time the traction crawler The stabilization effect is optimal, and then the single chip microcomputer 7 controls the motor 2 44 to operate. The output end of the motor 2 44 drives the reduction box 42 to work. The reduction box 42 reduces the power and then transmits it to the driving wheel 41 through the chain 43. The driving wheel 41 rotates to drive the traction crawler to move forward, and the trolley carrying the X-ray flaw detector moves forward synchronously. The X-ray flaw detector detects the inner wall of the pipeline along the way. When it is necessary to enter a pipeline with a diameter that is too large or too small, it is only necessary for the single chip microcomputer 7 to control the motor 1 37 to operate, and the angle of the stabilizing leg 31 is adjusted by moving the ring 34 up and down. When the diameter of the pipeline is too large, the motor 1 37 rotates forward, the ring 34 moves down, and the stabilizing leg 31 deflects outward. When the diameter of the pipeline is too small, the motor 1 37 rotates forward, the ring 34 moves down, and the stabilizing leg 31 deflects outward. When the diameter of the pipeline is too small, the motor 1 37 rotates reversely, the ring 34 moves up, and the stabilizing leg 31 deflects outward and inward. An adjustable stabilizing mechanism is provided, which can quickly and accurately adjust the expansion angle according to the diameter of the pipeline, so that the traction crawler is always in contact with the inner wall of the pipeline without affecting the travel efficiency, thereby ensuring the accuracy of the detection and the safety of the equipment.
[0029] It is worth noting that the single chip microcomputer 7 disclosed in the above embodiment is an S7-200 single chip microcomputer, the motor 1 37 is a 130ZFMA1-0003CBNM motor, the motor 2 44 is a MHD112D-027-PG0-AN motor, and the single chip microcomputer 7 controls the motor 1 37 and the motor 2 44 to work using methods commonly used in the prior art.
[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A traction crawler for an X-ray flaw detector, characterized in that: It comprises a housing (1), an adjustable stabilizing mechanism (3) and a driving mechanism (4); The housing (1) has a traction ring (2) fixedly connected to the middle of its lower end; An adjustable stabilizing mechanism (3) is arranged on the upper end of the outer surface of the housing (1); The driving mechanism (4) is arranged at the lower end of the housing (1), and the adjustable stabilizing mechanism (3) is installed in coordination with the driving mechanism (4); The invention also includes a battery (6) and a single-chip microcomputer (7), wherein the battery (6) is fixedly connected to the middle of the front side wall of the housing (1), the single-chip microcomputer (7) is fixedly connected to the middle of the right side of the housing (1), and the input end of the single-chip microcomputer (7) is electrically connected to the output end of the battery (6).
2. The traction crawler for X-ray flaw detector according to claim 1, characterized in that: The adjustable stabilizing mechanism (3) comprises stabilizing legs (31), stabilizing wheels (32), connecting rods (33) and a collar (34); the stabilizing legs (31) are rotatably connected to the upper end of the outer surface of the shell (1) via a pin; the stabilizing wheels (32) are arranged at the upper end of the stabilizing legs (31); the connecting rods (33) are rotatably connected to one end of the stabilizing legs (31) close to the center of the shell (1); and the upper ends of the four connecting rods (33) are rotatably connected to the outer surface of a collar (34).
3. The traction crawler for X-ray flaw detector according to claim 2, characterized in that: The adjustable stabilizing mechanism (3) further comprises a screw rod (35) and a stop block (36); the screw rod (35) is rotatably connected to the middle portion of the upper end of the housing (1); the outer surface of the screw rod (35) is threadedly connected to the inner wall of the collar (34); and the stop block (36) is fixedly connected to the upper end of the screw rod (35).
4. The traction crawler for X-ray flaw detector according to claim 3, characterized in that: The adjustable stabilizing mechanism (3) further comprises a motor (37), wherein the motor (37) is fixedly connected to the middle of the top wall of the housing (1), the input end of the motor (37) is electrically connected to the output end of the single-chip microcomputer (7), and the upper end of the output shaft of the motor (37) is fixedly connected to the lower end of the screw rod (35).
5. The traction crawler for X-ray flaw detector according to claim 1, characterized in that: The driving mechanism (4) comprises a driving wheel (41), a reduction box (42) and a chain (43); the driving wheel (41) is rotatably connected to the lower end of the housing (1); the reduction box (42) is fixedly connected to the inner lower end of the housing (1); a sprocket is provided at the middle of the driving wheel (41) and the output shaft of the reduction box (42); and the two sprockets are connected in transmission via the chain (43).
6. The traction crawler for X-ray flaw detector according to claim 5, characterized in that: The driving mechanism (4) further comprises a second motor (44), which is arranged in the middle of the rear side wall of the housing (1), the input end of the second motor (44) is electrically connected to the output end of the single-chip computer (7), and the lower end of the output shaft of the second motor (44) is fixedly connected to the reduction shaft of the reduction box (42).
7. The traction crawler for X-ray flaw detector according to claim 1, characterized in that: It also comprises an auxiliary wheel (5), wherein the auxiliary wheel (5) is rotatably connected to the upper left end of the housing (1).