Crack detection device

Abstract

The utility model provides a crack detection device, which is used for detecting a main frame of an electric wheel, and comprises a frame body, the detection assembly comprises a track and a detection part, the track is movably arranged on the frame body, the track extends in the circumferential direction of the electric wheel main rack, the detection part is movably arranged on the track, and the track and the detection part are matched to detect the electric wheel main rack; and the adjusting mechanism is arranged on the frame body, the adjusting mechanism is in driving connection with the track, and the adjusting mechanism can adjust the positions of the track in the horizontal direction and the vertical direction. According to the technical scheme provided by the utility model, the problem that the detection precision is relatively low when cracks on the main frame of the electric wheel are detected manually in the prior art can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mining trucks, in particular to a crack detection device. Background Art

[0002] Fatigue fracture occurs when cracks initially develop in areas of localized stress concentration or low strength, followed by crack propagation. Dump trucks used in open-pit mines are often found to have cracks in the mainframes of the electric wheels during overhauls. These cracks are numerous and have become a major factor affecting the safe operation of these trucks.

[0003] Since cracks in the mainframe of electric wheel trolleys are detected manually during routine maintenance, the workload is high and the detection precision and accuracy are low. As a result, cracks in the mainframe of electric wheel trolleys cannot be regularly and accurately monitored, making it very easy for the mainframe to break during operation, potentially causing major safety accidents such as the scrapping of the electric wheel trolley, equipment tipping, and collision. Utility Model Content

[0004] The utility model provides a crack detection device to solve the problem of low detection accuracy when cracks on a main frame of an electric wheel are detected manually in the prior art.

[0005] The utility model provides a crack detection device for detecting an electric wheel main frame, the crack detection device comprising: a frame; a detection assembly, comprising a track and a detection piece, the track being movably arranged on the frame, the track extending along the circumference of the electric wheel main frame, the detection piece being movably arranged on the track, the track and the detection piece cooperating to detect the electric wheel main frame; an adjustment mechanism being arranged on the frame, the adjustment mechanism being drive-connected to the track, and the adjustment mechanism being capable of adjusting the position of the track in the horizontal and vertical directions.

[0006] Furthermore, the track has an arc-shaped segment, which extends along the circumference of the electric wheel main frame. The adjustment mechanism includes a first adjustment member, which is arranged between the track and the frame. The first adjustment member includes: a slide rail, which is arranged on the frame, and the extension direction of the slide rail is the same as the extension direction of the track; a slider, which is movably arranged on the slide rail; a first fastener, which is arranged between the slider and the track, one end of the first fastener is connected to the slider, and the other end of the first fastener is passed through the track and connected to the track, and the first fastener cooperates with the slider to adjust the position of the track in the slide rail.

[0007] Furthermore, the adjustment mechanism also includes a second adjusting member, which is arranged between the track and the frame, and the second adjusting member includes: a telescopic member, having a fixed end and a movable end, the telescopic member extending in a vertical direction, the fixed end being arranged on the frame, and the movable end being able to telescope relative to the fixed end; a second fastener, which is arranged between the telescopic member and the track, one end of the second fastener is connected to the movable end, and the other end of the second fastener is passed through the track and connected to the track, and the second fastener cooperates with the telescopic member to adjust the position of the track relative to the fixed end.

[0008] Furthermore, the telescopic member includes a sleeve and a telescopic plate. The sleeve is sleeved on the outer periphery of the telescopic plate. The telescopic plate is adjustable in the vertical direction relative to the sleeve. The sleeve has a fixed end and the telescopic plate has a movable end. The second fastener is arranged on the part of the telescopic plate located outside the sleeve.

[0009] Furthermore, the detection assembly and the adjustment mechanism form a group of detection components, and the crack detection device includes two groups of detection components; the frame has a top beam and a bottom beam arranged at intervals in the vertical direction, and the two groups of detection components are arranged between the top beam and the bottom beam, one group of detection components is arranged on the top beam, and the other group of detection components is arranged on the bottom beam, and the two groups of detection components cooperate with each other to detect the periphery of the electric wheel main frame.

[0010] Furthermore, the frame also includes a connecting beam, which extends in the vertical direction. The connecting beam has a connecting end and an adjusting end. The adjusting end can move in the vertical direction relative to the connecting end. The adjusting end is connected to the top beam, and the connecting end is connected to the bottom beam. The top beam can adjust its relative position with the bottom beam in the vertical direction through the connecting beam.

[0011] Furthermore, the connecting beam includes a slide plate and a support plate. The slide plate is connected to the top beam, and the support plate is connected to the bottom beam. The slide plate is movably mounted on the outer periphery of the support plate. The slide plate has an adjustment end, and the support plate has a connecting end. The slide plate is provided with a plurality of mounting holes spaced apart in the vertical direction, and a plurality of through holes are correspondingly provided on the support plate. The through holes are matched with the mounting holes by fastening screws to adjust the position of the slide plate relative to the support plate in the vertical direction.

[0012] Furthermore, the crack detection device also includes an infrared monitor and an alarm. The infrared monitor can be movably arranged between the two mobile ends. The infrared monitor cooperates with the detection component to detect cracks on the main frame of the electric wheel. The alarm is arranged on the frame, and the alarm is electrically connected to the detection component and the infrared monitor respectively.

[0013] Furthermore, the crack detection device also includes: a support seat, which is movably arranged between two adjacent mobile ends, and the infrared monitor is arranged on the side of the support seat facing the electric wheel main frame; two support rods, which are respectively arranged at the two ends of the support seat facing the mobile end, and a plurality of openings are provided on the support rods; two connecting plates, which are respectively arranged on two adjacent mobile ends, and the two connecting plates are respectively arranged in one-to-one correspondence with the two support rods, and adjustment holes are provided on the connecting plates, and the adjustment holes are matched with the adjustment holes through screws to adjust the relative positions of the support seats at the two mobile ends.

[0014] Furthermore, the crack detection device also includes a walking part, which has a plurality of rollers. The plurality of rollers are arranged at intervals at the bottom of the frame, and the walking part is used to drive the frame to move in the horizontal direction.

[0015] Using the technical solution of the present invention, a track and a detection member are provided on a frame, and the detection member is movably provided on the frame and the track. Thus, the movement of the detection member allows detection of cracks on the periphery of the electric wheel mainframe, providing a flexible detection range. The adjustment mechanism can also adjust the horizontal and vertical position of the track relative to the frame, i.e., it can change the relative position of the track relative to the electric wheel mainframe in the horizontal and vertical directions to accommodate electric wheel mainframes of different models and sizes. This further enhances the flexibility and detection range of the crack detection device, and improves the accuracy and convenience of electric wheel mainframe crack detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 The following is a schematic structural diagram of a crack detection device provided by the present invention;

[0018] Figure 2 A partial cross-sectional structural diagram of a crack detection device provided by the present invention is shown;

[0019] Figure 3 A partial cross-sectional structural diagram of the first adjusting member provided by the present invention is shown;

[0020] Figure 4 A partial cross-sectional structural diagram of the detection member provided by the utility model is shown;

[0021] Figure 5 A partial cross-sectional structural diagram of the crack detection device provided by the present invention is shown.

[0022] The above drawings include the following reference numerals:

[0023] 10. Frame;

[0024] 11. Top beam; 12. Bottom beam; 121. Support frame;

[0025] 13. Connecting beam; 131. Slide plate;

[0026] 1311. Mounting hole; 1312. Fastening screw;

[0027] 132. Support plate; 1321. Through hole;

[0028] 20. Track;

[0029] 30. Detection component; 31. Pulley; 32. Monitoring module;

[0030] 41. Slide rail; 42. Slider; 43. First fastener;

[0031] 51, telescopic member; 511, fixed end; 512, movable end;

[0032] 513, sleeve; 514, telescopic plate;

[0033] 52. Second fastener;

[0034] 60. Detection components;

[0035] 70. Infrared monitor;

[0036] 80. Alarm;

[0037] 91. Support seat; 92. Support rod; 93. Connecting plate;

[0038] 100, roller;

[0039] 200, push rack;

[0040] 300, LED light strip;

[0041] 400. Reflective strips. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] like Figures 1 to 5 As shown, an embodiment of the present invention provides a crack detection device for detecting an electric wheel main frame. The crack detection device includes: a frame 10, a detection component, and an adjustment mechanism. The detection component includes a track 20 and a detection member 30. The track 20 is movably arranged on the frame 10, and the track 20 extends along the circumference of the electric wheel main frame. The detection member 30 is movably arranged on the track 20. The track 20 and the detection member 30 cooperate to detect the electric wheel main frame. The adjustment mechanism is arranged on the frame 10, and the adjustment mechanism is driven and connected to the track 20. The adjustment mechanism can adjust the position of the track 20 in the horizontal and vertical directions.

[0044] Among them, the specific structure of the detection part 30 is not limited. In this embodiment, the detection part 30 is an electric control detection vehicle, and four pulleys 31 are provided on the detection part 30. A monitoring module 32 is provided inside the detection part 30 to detect cracks on the periphery of the electric wheel main frame, and the detection part 30 is driven to move on the track by controlling the rotation of the pulley 31. The monitoring module 32 can be an infrared sensor, an optical fiber sensor or an acoustic wave sensor lamp, as long as it can detect cracks. There is also a magnetic attraction structure or a clamping structure between the detection part 30 and the track 20 to prevent the detection part 30 from falling off the track when moving on the track 20. The above components are prior art and will not be described in detail here.

[0045] In other embodiments of the present application, detectors such as acoustic wave sensors may also be provided in the detection element to detect other properties of other objects to be detected.

[0046] Using the technical solution of the present invention, a track 20 and a detection member 30 are provided on the frame 10. The detection member 30 is movably provided on the frame 10 and the detection member 30 is movably provided on the track 20. Thus, by moving the detection member 30, cracks on the periphery of the electric wheel mainframe can be detected, and the detection range is relatively flexible. The adjustment mechanism can also adjust the horizontal and vertical position of the track 20 relative to the frame 10, that is, it can change the relative position of the track 20 relative to the electric wheel mainframe in the horizontal and vertical directions to accommodate electric wheel mainframes of different models and sizes. This further enhances the flexibility and detection range of the crack detection device, and improves the accuracy and convenience of electric wheel mainframe crack detection.

[0047] Among them, the electric wheel main frame is a cylindrical structure, and the track 20 in this application has an arc segment, which extends along the circumference of the electric wheel main frame to adapt to the structure of the electric wheel main frame, improve the accuracy of the crack detection device, and facilitate the movement of the detection part on the track.

[0048] like Figures 1 to 3As shown, the adjustment mechanism includes a first adjustment member, which is arranged between the track 20 and the frame 10. The first adjustment member includes: a slide rail 41, a slider 42 and a first fastener 43. Among them, the slide rail 41 is arranged on the frame 10, and the extension direction of the slide rail 41 is the same as the extension direction of the track 20. The slider 42 is movably arranged on the slide rail 41. The first fastener 43 is arranged between the slider 42 and the track 20, one end of the first fastener 43 is connected to the slider 42, and the other end of the first fastener 43 is passed through the track 20 and connected to the track 20. The first fastener 43 cooperates with the slider 42 to adjust the position of the track 20 in the slide rail 41. The above arrangement can not only realize the support function of the track 20 but also adjust the position of the track 20. The structure is compact and simple, the number of components is reduced, and the space utilization rate of the crack detection device is improved.

[0049] Specifically, the slide rail 41 is fixedly connected to the frame 10, a movable groove is provided on the slide rail 41, and a movable protrusion is correspondingly provided on the slider 42. The movable protrusion is located in the movable groove, and the slider 42 slides in the movable groove through the movable protrusion. Not only is the structure simple, but it can also prevent the slider 42 from escaping from the slide rail 41 during movement, thereby improving the stability of the adjustment of the track 20.

[0050] Preferably, the first fastener 43 is a screw, and the first fastener 43 is threadedly connected to the track 20. In this way, the threaded structure between the first fastener 43 and the track 20 can increase the tightness of the connection between the first fastener 43 and the track 20, and the position of the track in the vertical direction can also be adjusted through the threaded structure.

[0051] like Figure 2 and Figure 5 As shown, the adjustment mechanism also includes a second adjustment member, which is arranged between the track 20 and the frame 10. The second adjustment member includes: a telescopic member 51 and a second fastener 52. The telescopic member 51 has a fixed end 511 and a movable end 512. The telescopic member 51 extends in the vertical direction. The fixed end 511 is arranged on the frame 10, and the movable end 512 can be extended relative to the fixed end 511. The second fastener 52 is arranged between the telescopic member 51 and the track 20. One end of the second fastener 52 is connected to the movable end 512, and the other end of the second fastener 52 is passed through the track 20 and connected to the track 20. The second fastener 52 cooperates with the telescopic member 51 to adjust the position of the track 20 relative to the fixed end 511. The above structure can support the track 20 and adjust the position of the track 20 in the vertical direction. In conjunction with the first adjustment member, it improves the stability of the adjustment mechanism in supporting the track 20 and the stability and accuracy of the adjustment.

[0052] In this embodiment, the second fastener 52 is also a screw structure, and the second fastener 52 is threadedly connected to the track 20. The second fastener 52 and the slide rail 41 cooperate to adjust the horizontal position of the track 20. In this way, the first adjusting member and the second adjusting member can provide stable support for the track 20 and improve the accuracy of the position adjustment of the track 20.

[0053] The specific structure of the telescopic member 51 is not limited, as long as it can realize telescopic movement. It can be an oil cylinder, a pneumatic cylinder, etc.

[0054] like Figure 5 As shown, the telescopic member 51 includes a sleeve 513 and a telescopic plate 514. The sleeve 513 is sleeved around the outer periphery of the telescopic plate 514. The telescopic plate 514 is vertically adjustable relative to the sleeve 513. The sleeve 513 has a fixed end 511, and the telescopic plate 514 has a movable end 512. The second fastener 52 is disposed on the portion of the telescopic plate 514 located outside the sleeve 513. The above arrangement is simple in structure and convenient for processing and installation.

[0055] In this application, there is no restriction on whether a retaining structure is provided between the sleeve 513 and the telescopic plate 514. The first fastener 43 can secure the position of the track 20. In this embodiment, no retaining structure is provided between the sleeve 513 and the telescopic plate 514. In other embodiments of this application, a retaining structure may be provided between the sleeve 513 and the telescopic plate 514 to enhance the stability of the track 20's position.

[0056] like Figure 1 As shown, the detection assembly and the adjustment mechanism form a group of detection components 60, and the crack detection device includes two groups of detection components 60. The frame 10 has a top beam 11 and a bottom beam 12 spaced apart in the vertical direction, and two groups of detection components 60 are arranged between the top beam 11 and the bottom beam 12, one group of detection components 60 is arranged on the top beam 11, and the other group of detection components 60 is arranged on the bottom beam 12. The two groups of detection components 60 cooperate with each other to detect the periphery of the electric wheel main frame. In this way, the detection range of the crack detection device is expanded. In other embodiments of the present application, one group of detection components 60 or three or five groups of detection components 60 can also be set, and they can be selected and adjusted according to the detection requirements.

[0057] The frame 10 further includes a connecting beam 13, which extends vertically and has a connecting end and an adjustment end. The adjustment end is movable vertically relative to the connecting end. The adjustment end is connected to the top beam 11, which in turn is connected to the bottom beam 12. The top beam 11 can adjust its relative vertical position to the bottom beam 12 via the connecting beam 13. This further increases the vertical adjustment range of the track 20 to accommodate different scenarios or different sizes of electric wheel mainframes, thereby improving the applicability and practicality of the crack detection device.

[0058] In the present application, the frame 10 has an opening, which is arranged on a side between the top beam 11 and the bottom beam 12 away from the connecting beam 13, so that it is convenient for the main frame of the electric wheel to approach or leave the track 20, and at the same time, the size of the crack detection device can be avoided from being too large while ensuring the detection range of the crack detection device.

[0059] In other embodiments, the frame 10 may also be a closed frame structure.

[0060] Specifically, the connecting beam 13 includes a slide 131 and a support plate 132. The slide 131 is connected to the top beam 11, and the support plate 132 is connected to the bottom beam 12. The slide 131 is movably mounted on the outer periphery of the support plate 132. The slide 131 has an adjustment end, and the support plate 132 has a connection end. The slide 131 has a plurality of mounting holes 1311 spaced apart in the vertical direction, and the support plate 132 has a plurality of corresponding through holes 1321. The through holes cooperate with the mounting holes 1311 via fastening screws 1312 to adjust the vertical position of the slide 131 relative to the support plate 132. This arrangement allows for multi-level adjustment of the height of the connecting beam 13, improving adjustment flexibility. Furthermore, the structure is simple, making adjustment and assembly and disassembly convenient.

[0061] like Figure 5 As shown, the crack detection device further includes an infrared monitor 70 and an alarm 80. The infrared monitor 70 is movably disposed between the two movable ends 512. The infrared monitor 70 cooperates with the detection member 30 to detect cracks on the electric wheel main frame. The alarm 80 is disposed on the frame 10 and is electrically connected to the detection member 30 and the infrared monitor 70, respectively. When a crack is detected on the electric wheel main frame, the detection member 30 and the infrared monitor 70 transmit a signal to the alarm 80, which then emits an alarm sound to alert personnel.

[0062] In the present application, the alarm 80 is a sound alarm. In other embodiments, it can also be set to an audible and visual alarm or a light alarm.

[0063] In this embodiment, there is a gap between adjacent rails 20, and the infrared monitor 70 is set corresponding to the gap range, which can further improve the monitoring range of the crack detection device and reduce the occurrence of monitoring blind spots.

[0064] Specifically, the crack detection device also includes: a support seat 91, two support rods 92 and two connecting plates 93. Among them, the support seat 91 can be movably arranged between two adjacent mobile ends 512, and the infrared monitor 70 is arranged on the side of the support seat 91 facing the electric wheel main frame. The two support rods 92 are respectively arranged at the two ends of the support seat 91 facing the mobile end 512, and a plurality of openings are provided on the support rods 92. The two connecting plates 93 are respectively arranged on the two adjacent mobile ends 512, and the two connecting plates 93 are respectively arranged in a one-to-one correspondence with the two support rods 92. The connecting plates 93 are provided with adjustment holes, and the adjustment holes are matched with the adjustment holes through screws to adjust the relative position of the support seat 91 at the two mobile ends 512. Through the above arrangement, the position of the support seat 91 can be adjusted according to the moving position of the mobile end 512, so that the support seat 91 can always correspond to the interval setting between the adjacent rails 20.

[0065] In another embodiment of the present application, the connecting plate 93 can be sleeved on the outer periphery of the support rod 92, and the connecting plate 93 and the support rod 92 are elastically connected by a spring. Such a setting structure is simpler and convenient to operate.

[0066] like Figure 2 As shown, the crack detection device also includes a running unit having multiple rollers 100 spaced apart at the bottom of the frame 10. The running unit is used to drive the frame 10 to move horizontally. The arrangement of multiple rollers 100 enables further adjustment of the position of the track 20 relative to the electric wheel mainframe. The rollers 100 drive the entire crack monitoring device to move, enabling multi-faceted detection at different angles and positions of the electric wheel mainframe, greatly extending the monitoring range of the crack monitoring device.

[0067] Specifically, the top beam 11 and the bottom beam 12 are T-shaped structures, which can reduce the spatial volume of the crack detection device, avoid interference between the device and other equipment when moving, and improve the convenience of movement.

[0068] Among them, support frames 121 are provided on both sides of the bottom beam 12, and rollers 100 are also provided at the bottom of the support frames 121. The setting of the support frames 121 can improve the structural strength and support strength of the bottom beam 12, and reduce the risk of the bottom beam 12 breaking due to excessive load.

[0069] In the present application, the crack monitoring device further includes a push frame 200 , which is disposed on the bottom beam 12 . The operator moves the position of the frame body 10 via the push frame 200 , making the operation more convenient.

[0070] Among them, the bottom beam 12 is also provided with an LED light bar 300, which is convenient for workers to inspect and repair the electric wheel main frame at night. The slide plate 131 is also provided with a reflective strip 400, which reflects light to prevent workers from bumping into the equipment and getting injured at night.

[0071] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0072] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0073] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0074] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0075] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0076] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A crack detection device for detecting a main frame of an electric wheel, characterized in that: The crack detection device comprises: Frame (10); A detection assembly comprises a track (20) and a detection member (30), wherein the track (20) is movably arranged on the frame (10), the track (20) extends along the circumference of the electric wheel main frame, and the detection member (30) is movably arranged on the track (20), and the track (20) cooperates with the detection member (30) to detect the electric wheel main frame; An adjusting mechanism is provided on the frame (10), the adjusting mechanism is drivingly connected to the track (20), and the adjusting mechanism can adjust the position of the track (20) in the horizontal direction and the vertical direction.

2. The crack detection device according to claim 1, characterized in that The track (20) has an arc segment, and the arc segment extends along the circumference of the electric wheel main frame. The adjustment mechanism includes a first adjustment member, and the first adjustment member is arranged between the track (20) and the frame (10). The first adjustment member includes: A slide rail (41) is provided on the frame (10), and the extending direction of the slide rail (41) is the same as the extending direction of the track (20); A slider (42) is movably arranged on the slide rail (41); A first fastener (43) is provided between the slider (42) and the track (20), one end of the first fastener (43) is connected to the slider (42), and the other end of the first fastener (43) is passed through the track (20) and connected to the track (20), and the first fastener (43) cooperates with the slider (42) to adjust the position of the track (20) in the slide rail (41).

3. The crack detection device according to claim 2, characterized in that: The adjustment mechanism further comprises a second adjustment member, the second adjustment member being arranged between the track (20) and the frame (10), the second adjustment member comprising: A telescopic member (51) having a fixed end (511) and a movable end (512), wherein the telescopic member (51) extends in a vertical direction, the fixed end (511) is arranged on the frame (10), and the movable end (512) is capable of telescoping relative to the fixed end (511); A second fastener (52) is provided between the telescopic member (51) and the track (20), one end of the second fastener (52) is connected to the movable end (512), the other end of the second fastener (52) is passed through the track (20) and connected to the track (20), and the second fastener (52) cooperates with the telescopic member (51) to adjust the position of the track (20) relative to the fixed end (511).

4. The crack detection device according to claim 3, characterized in that The telescopic member (51) comprises a sleeve (513) and a telescopic plate (514); the sleeve (513) is sleeved on the outer periphery of the telescopic plate (514); the telescopic plate (514) is vertically positionable relative to the sleeve (513); the sleeve (513) has the fixed end (511); the telescopic plate (514) has the movable end (512); and the second fastener (52) is arranged on a portion of the telescopic plate (514) located outside the sleeve (513).

5. The crack detection device according to claim 1, characterized in that: The detection assembly and the adjustment mechanism form a set of detection components (60), and the crack detection device includes two sets of the detection components (60); The frame (10) has a top beam (11) and a bottom beam (12) arranged at intervals in a vertical direction, two groups of detection components (60) are arranged between the top beam (11) and the bottom beam (12), one group of detection components (60) is arranged on the top beam (11), and the other group of detection components (60) is arranged on the bottom beam (12), and the two groups of detection components (60) cooperate with each other to detect the periphery of the electric wheel main frame.

6. The crack detection device according to claim 5, characterized in that: The frame (10) further includes a connecting beam (13), the connecting beam (13) extending in a vertical direction, the connecting beam (13) having a connecting end and an adjusting end, the adjusting end being capable of moving in a vertical direction relative to the connecting end, the adjusting end being connected to the top beam (11), the connecting end being connected to the bottom beam (12), and the top beam (11) being capable of adjusting its relative position to the bottom beam (12) in a vertical direction through the connecting beam (13).

7. The crack detection device according to claim 6, characterized in that: The connecting beam (13) includes a slide plate (131) and a support plate (132), wherein the slide plate (131) is connected to the top beam (11), and the support plate (132) is connected to the bottom beam (12), and the slide plate (131) is movably sleeved on the outer periphery of the support plate (132), the slide plate (131) has the adjustment end, and the support plate (132) has the connection end, and the slide plate (131) is provided with a plurality of mounting holes (1311) spaced apart in the vertical direction, and a plurality of through holes (1321) are correspondingly provided on the support plate (132), and the through holes (1321) cooperate with the mounting holes (1311) by fastening screws (1312) to adjust the position of the slide plate (131) relative to the support plate (132) in the vertical direction.

8. The crack detection device according to claim 3, characterized in that: The crack detection device further includes an infrared monitor (70) and an alarm (80). The infrared monitor (70) is movably arranged between the two mobile ends (512). The infrared monitor (70) cooperates with the detection element (30) to detect cracks on the main frame of the electric wheel. The alarm (80) is arranged on the frame (10) and is electrically connected to the detection element (30) and the infrared monitor (70), respectively.

9. The crack detection device according to claim 8, characterized in that: The crack detection device further comprises: A support base (91) is movably arranged between two adjacent mobile ends (512), and the infrared monitor (70) is arranged on a side of the support base (91) facing the electric wheel main frame; Two support rods (92) are respectively arranged at two ends of the support base (91) facing the movable end (512), and a plurality of openings are provided on the support rods (92); Two connecting plates (93) are respectively arranged on the two adjacent movable ends (512), and the two connecting plates (93) are respectively arranged in one-to-one correspondence with the two support rods (92). The connecting plates (93) are provided with adjustment holes, and the adjustment holes are matched with the adjustment holes through screws to adjust the relative positions of the support seat (91) on the two movable ends (512).

10. The crack detection device according to claim 1, characterized in that: The crack detection device further comprises a walking part, wherein the walking part comprises a plurality of rollers (100), wherein the plurality of rollers (100) are arranged at intervals at the bottom of the frame (10), and the walking part is used for driving the frame (10) to move in a horizontal direction.

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