Gate track full-automatic magnetic memory detection crawling mechanism

By using a clamping mechanism and track design, the problem of unstable crawling of the magnetic flaw detector on the vertical track was solved, realizing fully automatic magnetic memory detection of the gate track and improving the stability and applicability of the detection.

CN224117398UActive Publication Date: 2026-04-14HANGZHOU GUOHUA TESTING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU GUOHUA TESTING TECH CO LTD
Filing Date
2025-06-10
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In existing technologies, magnetic flaw detectors are unstable when crawling on vertically set gate tracks, resulting in an unstable detection process and making it difficult to achieve fully automated detection.

Method used

The clamping mechanism drives the walking mechanism to fit closely to both sides of the track. Electromagnets are embedded in the track to enhance the attraction force. The clamping mechanism has an adjustable spacing. Combined with the design of rubber tracks and motor drive wheels, it ensures stable crawling on tracks of different widths.

Benefits of technology

This technology enables the magnetic flaw detector to crawl steadily on a vertical track, improving the stability and applicability of the inspection and ensuring the reliability and accuracy of the inspection process.

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Abstract

The utility model relates to the technical field of gate track detection, and provides a gate track full-automatic magnetic memory detection crawling mechanism which comprises a frame body, a detection mechanism, a clamping mechanism and two sets of walking mechanisms, the detection mechanism, the clamping mechanism and the two sets of walking mechanisms are installed on the frame body, the detection mechanism is used for detecting a track, and the clamping mechanism is used for driving the two sets of walking mechanisms to clamp the two sides of the track; the walking mechanism comprises rotating wheels, a mounting frame, a first motor and a crawler belt, and the mounting frame is slidably mounted on the frame body; the rotating wheel is rotationally mounted on the mounting frame, and the first motor is used for driving the rotating wheel to rotate; the crawler sleeves the outer wall of the rotating wheel and is used for abutting against the side wall of the track. According to the full-automatic magnetic memory detection crawling mechanism for the gate track, a magnetic flaw detector can stably crawl on the gate track.
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Description

Technical Field

[0001] This application relates to the field of gate track detection technology, and in particular to a fully automatic magnetic memory detection crawling mechanism for gate tracks. Background Technology

[0002] Gate tracks, as key components in hydraulic engineering, are widely used in reservoirs, canals, and rivers to control water flow, regulate water levels, and perform interception and irrigation functions. They operate in complex underwater environments for extended periods, bearing significant loads and susceptible to corrosion and fatigue damage. Problems can lead to serious engineering accidents. Therefore, regular inspection of gate tracks to ensure their structural integrity and functionality is crucial. Magnetic flaw detection technology, as a non-destructive testing method, can effectively detect internal and surface defects in metallic materials and has been widely applied in industrial fields.

[0003] In practical applications, to complete the inspection of gate tracks, a magnetic flaw detector is usually manually operated to move along the track surface. The operator needs to first clean the oil, rust, and other impurities from the track surface, then place electromagnets on both sides of the track, apply a constant magnetic field perpendicular to the track surface, and use a camera to observe the stripes formed by the magnetic powder to determine the location of defects. However, since it is inconvenient to manually change the position of the magnetic flaw detector, a crawling mechanism is designed to drive the magnetic flaw detector to crawl on the track. However, since the gate track is vertically set, how to stably crawl the magnetic flaw detector on the gate track is a problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] In order to enable the magnetic flaw detector to crawl stably on the gate track, this application provides a fully automatic magnetic memory detection crawling mechanism for the gate track.

[0005] The fully automatic magnetic memory detection crawling mechanism for gate tracks provided in this application adopts the following technical solution:

[0006] An automatic magnetic memory detection crawling mechanism for gate tracks includes a frame, a detection mechanism, a clamping mechanism, and two sets of walking mechanisms mounted on the frame. The detection mechanism is used to detect the track, and the clamping mechanism is used to drive the two sets of walking mechanisms to clamp the track on both sides. The walking mechanism includes a rotating wheel, a mounting frame, a first motor, and a track. The mounting frame is slidably mounted on the frame. The rotating wheel is rotatably mounted on the mounting frame, and the first motor is used to drive the rotating wheel to rotate. The track is sleeved on the outer wall of the rotating wheel and is used to abut against the side wall of the track.

[0007] By adopting the above technical solution, the clamping mechanism can drive the two sets of walking mechanisms to fit tightly against the two side walls of the track, which can increase the friction between the walking mechanism and the track, so that the track can climb upward under the drive of the walking mechanism; in addition, the clamping mechanism also has the function of adjusting the distance between the two sets of walking mechanisms, so that the track can adapt to tracks of different widths, effectively improving the applicability and working stability of the detection mechanism.

[0008] Optionally, the walking mechanism further includes multiple driven wheels, all of which are rotatably mounted on the mounting frame, and the track is wrapped around the outer peripheral wall of all the driven wheels of the rotating wheel.

[0009] By adopting the above technical solution, the contact area between the track and the rail is increased, which can increase the friction between the traveling mechanism and the rail, thereby improving the stability of the device on the rail.

[0010] Optionally, an electromagnet is embedded in the track.

[0011] By adopting the above technical solution, the electromagnet embedded in the track can enhance the adsorption effect between the track and the rail, ensure that the crawling mechanism moves stably on the vertical track, effectively prevent it from falling off, and improve the reliability of the detection process.

[0012] Optionally, the tracks are made of rubber material.

[0013] By adopting the above technical solution, the use of rubber material for the tracks increases the friction between the tracks and the track, thereby improving the stability of the crawling mechanism on vertically installed gate tracks and reducing slippage. Simultaneously, the rubber material's flexibility allows the tracks to better conform to the track surface, adapting to any minor unevenness that may exist on the track surface, further enhancing the crawling mechanism's reliability.

[0014] Optionally, the clamping mechanism includes a drive wheel and a second motor. The drive wheel is rotatably mounted on the frame and has a long shaft and a short shaft. The second motor is used to drive the drive wheel to rotate. An annular groove is formed on the outer peripheral wall of the drive wheel, and two sliders are slidably installed in the annular groove. The two sliders are rotatably connected to two walking mechanisms respectively.

[0015] By adopting the above technical solution, the design of its major and minor axes results in an elliptical shape for the drive wheel. As the drive wheel rotates, the two sliders within the annular groove move radially relative to each other. Since the sliders are rotatably connected to the traveling mechanism, this radial movement allows the two sets of traveling mechanisms to move closer or further apart, thus achieving adaptive adjustment to tracks of different widths. This ensures the crawling mechanism can be securely clamped to both sides of the track, improving the stability and reliability of the detection process.

[0016] Optionally, the frame has a groove, and a pull rod is movably installed in the groove; the upper surface of the drive wheel has multiple positioning slots for the pull groove to be inserted; the frame is provided with a spring, and the elastic force of the spring is used to drive the pull rod to be inserted into the positioning slot under normal conditions.

[0017] By adopting the above technical solution, the pull rod is inserted into different positioning slots, which can fix the drive wheel on the frame. This allows the position of the drive wheel to be locked without the need for the second motor to be continuously powered, thus ensuring the stability of the mechanism during the testing process.

[0018] Optionally, the clamping mechanism includes a double-headed cylinder, which is mounted on the frame and the two output shafts of the double-headed cylinder are respectively connected to two sets of walking mechanisms.

[0019] By adopting the above technical solution, the dual-head cylinder configuration provides stable thrust, enabling the two sets of traveling mechanisms to move synchronously towards or away from each other, thus achieving adaptive adjustment to tracks of different widths. This structural design not only simplifies the clamping operation but also improves the stability of the crawling mechanism on the track, ensuring accuracy and reliability during the inspection process.

[0020] Optionally, the detection mechanism includes a spraying component, an electromagnetic component, and a video recording component arranged sequentially from front to back along the frame's travel path. The spraying component is used to spray magnetic powder onto the track surface, the electromagnetic component is used to apply a magnetic field to the track, and the video recording component is used to take pictures and record the track surface.

[0021] By adopting the above technical solution, the testing agency can achieve fully automated magnetic memory testing of gate tracks. The spraying component first uniformly sprays magnetic powder onto the track surface, ensuring that the powder covers potential defect areas. The electromagnetic component then applies a magnetic field to the track, causing the magnetic powder to form stripes under the influence of the magnetic field. Areas where the stripes converge clearly indicate defects such as cracks or inclusions. Finally, the video recording component photographs the track surface for subsequent analysis and archiving. This solution effectively improves testing efficiency and accuracy while simplifying the operation process, providing a reliable guarantee for the safety of gate tracks.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By setting up a clamping mechanism, the two sets of walking mechanisms can be driven to fit tightly against the two side walls of the track, which can increase the friction between the walking mechanism and the track, so that the track can climb upward under the drive of the walking mechanism; in addition, the clamping mechanism also has the function of adjusting the distance between the two sets of walking mechanisms, so that the track can adapt to tracks of different widths, effectively improving the applicability and working stability of the detection mechanism.

[0024] 2. By setting up tie rods that are inserted into different positioning slots, the drive wheel can be fixed to the frame, thereby locking the position of the drive wheel without requiring continuous power to the second motor, ensuring the stability of the mechanism during the testing process. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of Example 1;

[0026] Figure 2 This is a partial cross-sectional view of Embodiment 1;

[0027] Figure 3 This is a partial cross-sectional view of Embodiment 2;

[0028] Figure 4 This is a partial cross-sectional view of Example 3;

[0029] Figure 5 yes Figure 4 A magnified view of a portion at point A.

[0030] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Sliding groove; 12. Mounting cavity; 13. Pull groove; 2. Detection mechanism; 21. Spraying assembly; 211. Spray nozzle; 212. Material box; 213. Material pipe; 22. Electromagnetic assembly; 221. Electromagnet; 23. Recording assembly; 231. Camera; 3. Clamping mechanism; 31. Double-headed cylinder; 32. Drive wheel; 33. Second motor; 34. Ring groove; 35. Slider; 36. Rotating shaft; 37. Positioning groove; 4. Walking mechanism; 41. Mounting frame; 42. Rotating wheel; 43. Driven wheel; 44. First motor; 45. Track; 46. Mounting rod; 5. Pull rod; 51. Spring; 52. Limit plate. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0032] Example 1:

[0033] This application discloses a fully automatic magnetic memory detection crawling mechanism for gate tracks.

[0034] Reference Figure 1 A fully automatic magnetic memory detection crawling mechanism for gate tracks includes a frame 1 and a detection mechanism 2, a clamping mechanism 3, and two sets of walking mechanisms 4 installed on the frame 1. The detection mechanism 2 is used to detect the track, and the clamping mechanism 3 is used to drive the two sets of walking mechanisms 4 to clamp the track on both sides.

[0035] Reference Figure 2In this embodiment, the walking mechanism 4 includes a mounting frame 41, a rotating wheel 42, a driven wheel 43, a first motor 44, and a track 45. Two sliding grooves are provided on one side of the frame 1, and the mounting frame 41 is slidably installed in the sliding grooves. Multiple sets of driven wheels 43 are provided, and the rotating wheel 42 and multiple driven wheels 43 are rotatably installed on the mounting frame 41. The first motor 44 is installed on the mounting frame 41 to drive the rotating wheel 42 to rotate. The track 45 is wrapped around the outer peripheral wall of the rotating wheel 42 and all driven wheels 43, and the track 45 is used to abut against the side wall of the track.

[0036] In this embodiment, the track 45 is made of rubber material and is fitted onto the outer wall of all the wheels. The outer wall of the track 45 is provided with anti-slip texture to increase the friction between the track 45 and the track, thereby increasing the stability of the track 45 crawling on the track.

[0037] An electromagnet 221 is embedded in the track 45. The electromagnet 221 can increase the attraction force between the track 45 and the track, ensuring that the crawling mechanism moves stably on the vertical track, effectively preventing it from falling off, and improving the reliability of the detection process.

[0038] The frame 1 has an internal mounting cavity 12, which is connected to two sliding grooves 11. One end of the mounting frame 41 has an integrally formed mounting rod 46, which passes through the sliding groove 11 and enters the mounting cavity 12. In this embodiment, the clamping mechanism 3 includes a double-headed cylinder 31, which is installed in the mounting cavity 12. Both ends of the double-headed cylinder 31 are connected to the two mounting rods 46. The double-headed cylinder 31 provides stable thrust, enabling the two sets of tracks 45 to move synchronously towards or away from each other, thereby achieving clamping of tracks of different widths.

[0039] Reference Figure 1 The testing mechanism 2 includes a spraying component 21, an electromagnetic component 22, and a recording component 23 arranged sequentially from front to back along the walking path of the frame 1. The spraying component 21 includes a spray nozzle 211, a material tube 213, and a material box 212. The material box 212 is installed on the frame 1 to hold magnetic powder. The two ends of the material tube 213 are connected to the spray nozzle 211 and the material box 212 respectively, and are used to spray the magnetic powder in the material box 212 onto the outer wall of the track through the spray nozzle 211.

[0040] The electromagnetic component 22 includes two electromagnets 221 mounted on the frame 1, with the two electromagnets 221 located on both sides of the track; the spray nozzle 211 is used to spray magnetic powder onto the track located between the two electromagnets 221. By energizing the two electromagnets 221, a constant magnetic field perpendicular to the track surface can be applied to the track.

[0041] The video recording component 23 includes multiple cameras, all of which are mounted on the frame 1 and wrapped around the outer wall of the track. First, magnetic powder is evenly sprayed onto the track surface using nozzles to ensure that the magnetic powder can cover potential defect areas on the track surface. Then, two electromagnets 221 apply a magnetic field to the track, causing the magnetic powder to form stripes under the action of the magnetic field. The areas where the stripes converge clearly indicate defects such as cracks or inclusions. All cameras take pictures and record images of the track from various angles for subsequent analysis and archiving.

[0042] The implementation principle of Embodiment 1 of this application is as follows:

[0043] The double-headed cylinder 31 can drive the two sets of tracks 45 to fit tightly against the side walls of the track, which can increase the friction between the tracks 45 and the track, so that the frame 1 can climb upward on the track under the drive of the first motor 44. In addition, the clamping mechanism 3 also has the function of adjusting the distance between the two sets of walking mechanisms 4, so that the tracks 45 can adapt to tracks of different widths, effectively improving the applicability and working stability of the detection mechanism 2.

[0044] Example 2:

[0045] This application discloses a fully automatic magnetic memory detection crawling mechanism for gate tracks.

[0046] Reference Figure 3 The difference between Embodiment 2 and Embodiment 1 is that the clamping mechanism 3 includes a drive wheel 32 and a second motor 33. The drive wheel 32 is rotatably installed in the mounting cavity 12. The drive wheel 32 has a long axis and a short axis, that is, the drive groove is elliptical in shape. The second motor 33 is installed on the frame 1 to drive the drive wheel 32 to rotate.

[0047] The outer peripheral wall of the drive wheel 32 is provided with an annular groove 34, and the two ends of the annular groove 34 are connected together. Two sliders 35 are slidably installed in the annular groove 34, and the two sliders 35 are rotatably connected to two mounting rods 46 through a rotating shaft 36.

[0048] The implementation principle of Embodiment 2 of this application is as follows:

[0049] As the drive wheel 32 rotates, the two sliders 35 in the annular groove 34 move radially relative to each other during the rotation of the drive wheel 32. Since the sliders 35 are rotatably connected to the mounting bracket 41, this radial movement can drive the two sets of walking mechanisms 4 to move closer or further apart, thereby achieving adaptive adjustment to tracks of different widths, ensuring that the crawling mechanism can be firmly clamped on both sides of the track, and improving the stability and reliability of the detection process.

[0050] Example 3:

[0051] This application discloses a fully automatic magnetic memory detection crawling mechanism for gate tracks.

[0052] Reference Figure 4 and Figure 5 The difference between Embodiment 3 and Embodiment 2 is that: a groove 13 communicating with the mounting cavity 12 is provided on the side of the frame 1 away from the mounting bracket 41, and a pull rod 5 is movably installed in the groove 13; the rotating wheel 42 is provided with a plurality of positioning grooves 37 for the pull rod 5 to be inserted, and all the positioning grooves 37 are arranged to form a circle.

[0053] In this embodiment, a limiting plate 52 is provided on the outer wall of the pull rod 5, and a spring 51 is sleeved on the outer wall of the pull rod 5. The two ends of the spring 51 are respectively connected to the limiting plate 52 and the inner wall of the mounting cavity 12; the elastic force of the spring 51 is used to drive the pull rod 5 to be inserted into the positioning groove 37 under normal conditions.

[0054] The implementation principle of Embodiment 3 of this application is as follows:

[0055] Pulling the lever 5 disconnects it from the positioning slot 37, allowing the second motor 33 to drive the gears and adjust the distance between the two sets of walking mechanisms 4. Once the distance is adjusted, the spring 51 automatically pushes the lever 5 back to its original position, keeping it engaged with the slot 13 and rotating. This fixes the position of the drive wheel 32, reducing the continuous power requirement for the second motor 33, achieving energy savings, and extending the motor's lifespan.

[0056] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fully automatic magnetic memory detection crawling mechanism for gate tracks, characterized in that: The system includes a frame (1) and a detection mechanism (2), a clamping mechanism (3), and two sets of walking mechanisms (4) installed on the frame (1). The detection mechanism (2) is used to detect the track, and the clamping mechanism (3) is used to drive the two sets of walking mechanisms (4) to clamp on both sides of the track. The walking mechanism (4) includes a rotating wheel (42), a mounting frame (41), a first motor (44), and a track (45). The mounting frame (41) is slidably installed on the frame (1). The rotating wheel (42) is rotatably installed on the mounting frame (41), and the first motor (44) is used to drive the rotating wheel (42) to rotate. The track (45) is sleeved on the outer wall of the rotating wheel (42) and is used to abut against the side wall of the track.

2. The fully automatic magnetic memory detection crawling mechanism for gate tracks according to claim 1, characterized in that: The walking mechanism (4) also includes multiple driven wheels (43), all of which are rotatably mounted on the mounting frame (41), and the track (45) is wrapped around the outer peripheral wall of all driven wheels (43) of the rotating wheel (42).

3. The fully automatic magnetic memory detection crawling mechanism for gate tracks according to claim 2, characterized in that: An electromagnet (221) is embedded in the track (45).

4. The fully automatic magnetic memory detection crawling mechanism for gate tracks according to claim 2, characterized in that: The track (45) is made of rubber material.

5. The fully automatic magnetic memory detection crawling mechanism for gate tracks according to claim 1, characterized in that: The clamping mechanism (3) includes a drive wheel (32) and a second motor (33). The drive wheel (32) is rotatably mounted on the frame (1). The drive wheel (32) has a long shaft and a short shaft. The second motor (33) is used to drive the drive wheel (32) to rotate. The outer peripheral wall of the drive wheel (32) is provided with an annular groove (34). Two sliders (35) are slidably mounted in the annular groove (34). The two sliders (35) are rotatably connected to two walking mechanisms (4) respectively.

6. The fully automatic magnetic memory detection crawling mechanism for gate tracks according to claim 5, characterized in that: The frame (1) has a groove (13) and a pull rod (5) is movably installed in the groove (13); the upper surface of the drive wheel (32) has a plurality of positioning slots (37) for the pull groove (13) to be inserted into; the frame (1) is provided with a spring (51) and the elastic force of the spring (51) is used to drive the pull rod (5) to be inserted into the positioning slot (37) under normal conditions.

7. The fully automatic magnetic memory detection crawling mechanism for gate tracks according to claim 1, characterized in that: The clamping mechanism (3) includes a double-headed cylinder (31), which is mounted on the frame (1), and the two output shafts of the double-headed cylinder (31) are respectively connected to two sets of walking mechanisms (4).

8. The fully automatic magnetic memory detection crawling mechanism for gate tracks according to claim 1, characterized in that: The detection mechanism (2) includes a spraying component (21), an electromagnetic component (22), and a video recording component (23) arranged sequentially from front to back along the walking path of the frame (1). The spraying component (21) is used to spray magnetic powder onto the track surface, the electromagnetic component (22) is used to apply a magnetic field to the track, and the video recording component (23) is used to take pictures and record the track surface.