Inspection device and inspection system

Abstract

This invention proposes an inspection device and an inspection system. The inspection device of this invention includes: a track assembly, which includes a toothed track, and the toothed track includes a plurality of first toothed tracks and a plurality of second toothed tracks. The first and second toothed tracks are arranged side-by-side in a first direction perpendicular to the extension direction of the track assembly. The first and second toothed tracks are alternately arranged sequentially in the extension direction of the track assembly, and one of the first and second toothed tracks has an interlacing portion with its adjacent counterpart in the extension direction of the track assembly. A drive unit includes a drive housing, a motor, and a drive gear. The motor is disposed within the drive housing, and the drive gear is disposed on the output shaft of the motor and adapted to mesh with the first and second toothed tracks. Therefore, the inspection device according to this invention has the advantages of high applicability, high installation efficiency, and ease of stable operation.

Description

Technical Field

[0001] This invention relates to the field of mine inspection equipment technology, specifically to an inspection device and inspection system. Background Technology

[0002] In related technologies, mine inspection devices utilize intrinsically safe electromagnetic drive motors. However, the capacity of the intrinsically safe battery is limited by coal mine safety standards, resulting in limited standby time and driving capability, which prevents the inspection devices from operating routinely. Conversely, externally constructed mechanical drive systems involve large engineering projects and complex technical implementation, and the device's operation becomes unstable due to changes in the direction of travel. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of the present invention provide an inspection device and an inspection system.

[0004] The inspection device of this invention includes:

[0005] A track assembly, the track assembly including a toothed rail, the toothed rail including a plurality of first toothed rails and a plurality of second toothed rails, the first toothed rails and the second toothed rails being arranged side by side in a first direction, the first direction being perpendicular to the extension direction of the track assembly, wherein the first toothed rails and the second toothed rails are alternately arranged in sequence in the extension direction of the track assembly, and one of the first toothed rails and the second toothed rails has an intersecting portion with the adjacent other in the extension direction of the track assembly.

[0006] The drive unit includes a drive housing, a motor, and a drive gear. The motor is disposed inside the drive housing, and the drive gear is disposed on the output shaft of the motor and adapted to mesh with the first gear rail and the second gear rail.

[0007] Therefore, the inspection device according to the embodiments of the present invention has the advantages of high applicability, high installation efficiency and easy and stable operation.

[0008] In some embodiments, the track assembly further includes a support rail, the support rail and the toothed rail being arranged side by side in a first direction;

[0009] The drive unit also includes a support wheel, which is connected to the drive housing and rotatably mounted on the support rail.

[0010] In some embodiments, the track assembly includes a plurality of track segments connected sequentially along the extension direction of the track assembly;

[0011] The support rails are multiple, and the multiple support rails are arranged sequentially along the extension direction of the track assembly with adjacent support rails spaced apart. Each support rail is located within a track segment, and the length of the support rail is equal to or less than the length of the corresponding track segment.

[0012] The support wheel includes a first support wheel and a second support wheel, which are spaced apart in the front-rear direction of the drive housing.

[0013] In some embodiments, the intersecting portions of the first and second toothed rails are located at the midpoint of the respective track segments in the extension direction of the track assembly.

[0014] In some embodiments, the support rail includes a plurality of first rails and a plurality of second rails, the first rails and the second rails being arranged side by side in the first direction, the plurality of first rails being arranged sequentially along the extension direction of the rail assembly with adjacent first rails spaced apart, the plurality of second rails being arranged sequentially along the extension direction of the rail assembly with adjacent second rails spaced apart, each first rail and each second rail being located within a rail segment, and the length of the first rail and the length of the second rail being less than or equal to the length of the corresponding rail segment.

[0015] In some embodiments, the track assembly further includes

[0016] Multiple support frames are provided, and the first track and the second track are both mounted on the support frames, with each track segment containing the support frame;

[0017] The rail base is connected to one of the support frame and the support rail, and the rail base has a mounting groove, in which the toothed rail is disposed.

[0018] In some embodiments, the mounting groove includes a first surface, a second surface, and a third surface connected sequentially in a first direction, wherein the second surface is a horizontal surface, and both the second surface and the third surface are upwardly extending inclined surfaces or arc surfaces.

[0019] In some embodiments, the drive unit further includes an elastic element disposed within the drive housing. The motor is slidably disposed within the drive housing in the vertical direction. The elastic element is elastically deformable in the vertical direction and is connected to the motor to drive the motor to move downward.

[0020] In some embodiments, the motor includes a first motor and a second motor, the drive gear includes a first drive gear and a second drive gear, the output shaft of the first motor is connected to the first drive gear, the first drive gear is adapted to mesh with the first gear rail, the output shaft of the second motor is connected to the second drive gear, and the second drive gear is adapted to mesh with the second gear rail.

[0021] The inspection device of this invention also includes a sensing unit, which includes a sensing housing, an integrated access unit and multiple working elements. The integrated access unit is provided with multiple male connectors, and each working element is provided with a female connector that can be inserted into the male connector.

[0022] The inspection device of this invention also includes a shock absorption unit, which includes a shock absorber and a support platform. The sensing housing is disposed on the support platform, which is located above the drive housing. The support platform is connected to the drive housing through the shock absorber.

[0023] In some embodiments, the shock absorber further includes a dustproof enclosure, which is arranged around the outer periphery of the shock absorber.

[0024] This invention also proposes an inspection system, comprising:

[0025] Inspection device, the inspection device is the inspection device described above, the inspection device is equipped with a cable winch, and the cable is installed in the cable winch;

[0026] A coal mining machine, one end of which is connected to the coal mining machine, and the other end of which is connected to the inspection equipment. Attached Figure Description

[0027] Figure 1 This is a top view of the track assembly according to an embodiment of the present invention.

[0028] Figure 2 This is a side view of a track assembly according to an embodiment of the present invention.

[0029] Figure 3 This is a side view of the inspection device according to an embodiment of the present invention.

[0030] Figure 4 This is a top view of the drive unit according to an embodiment of the present invention.

[0031] Figure 5 This is a schematic diagram of the sensing unit according to an embodiment of the present invention.

[0032] Figure label:

[0033] Inspection device 100;

[0034] Support rail 1, first track 11, second track 12, support frame 13, rail base 14;

[0035] Gear 2, first gear 21, second gear 22;

[0036] Drive unit 3, drive housing 31, motor 32, first motor 321, second motor 322, support wheel 33, drive gear 34, first drive gear 341, second drive gear 342, elastic element 35, limiting part 36;

[0037] Sensing unit 4, sensing housing 41, integrated access unit 42, working element 43, male connector 44, female connector 45;

[0038] 5. Shock absorber 51. Load-bearing platform 52. Dustproof enclosure 53. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0040] The inspection device 100 of an embodiment of the present invention will now be described with reference to the accompanying drawings. Figures 1 to 5 As shown, the inspection device 100 according to an embodiment of the present invention includes a track assembly and a drive unit 3.

[0041] The track assembly includes a toothed rail 2, which comprises a plurality of first toothed rails 21 and a plurality of second toothed rails 22. The first toothed rails 21 and the second toothed rails 22 are arranged side by side in a first direction, which is perpendicular to the extension direction of the track assembly. The first toothed rails 21 and the second toothed rails 22 are alternately arranged in sequence in the extension direction of the track assembly, and one of the first toothed rails 21 and the second toothed rail 22 has an intersecting portion with its adjacent counterpart in the extension direction of the track assembly.

[0042] The drive unit 3 includes a drive housing 31, a motor 32 and a drive gear 34. The motor 32 is located inside the drive housing 31, and the drive gear 34 is located on the output shaft of the motor 32 and is adapted to mesh with the first gear rail 21 and the second gear rail 22.

[0043] According to an embodiment of the present invention, the inspection device 100 has a drive gear 34 on the motor 32 of the drive unit 3, which is adapted to mesh with the first gear rail 21 and the second gear rail 22. Thus, when the motor 32 rotates, the drive gear 34 meshes with the gear rail 2 (at least one of the first gear rail 21 and the second gear rail 22) so as to drive the drive unit 3 to move.

[0044] One of the first toothed rail 21 and the second toothed rail 22 has an intersecting portion with the adjacent one in the extending direction of the track assembly. That is, the toothed rail 2 has no interruption in the extending direction of the track assembly, thereby enabling the drive unit 3 to continuously move in the extending direction of the track assembly.

[0045] The first toothed rail 21 and the second toothed rail 22 are arranged side-by-side (at intervals) in a first direction, and are alternately arranged sequentially in the extension direction of the track assembly. This allows the first and second toothed rails 21 and 22 to adapt to the extension direction of the track assembly when the extension direction of the track assembly (the moving direction of the drive unit 3) changes (by having a curved portion). This ensures that the extension direction of the toothed rail 2 is consistent with the extension direction of the track assembly, allowing the drive unit 3 to move continuously and improving the applicability of the inspection device 100. Compared to using a single toothed rail (multiple sequentially connected toothed rails), the alternating and non-connected arrangement allows each first toothed rail 21 and second toothed rail 22 to be more independent and not affect each other. It eliminates the need to solve problems such as mutual compression caused by connected toothed rails 2, and also reduces installation steps such as welding or installing connecting parts between adjacent toothed rails 2, thereby reducing the amount of construction work and construction costs, and improving construction efficiency.

[0046] Therefore, the inspection device 100 according to the embodiments of the present invention has the advantages of high applicability, high installation efficiency and easy stable operation.

[0047] like Figures 1 to 5 As shown, the inspection device 100 according to an embodiment of the present invention includes a track assembly, a drive unit 3, a sensing unit 4, and a shock absorption unit 5.

[0048] The track assembly comprises multiple track segments connected sequentially along its extension direction. Specifically, the extension direction of a track segment is the same as that of a single section of a tunnel in a coal mine or a single section of a scraper conveyor in a coal mine. The extension directions of two connected track segments may be the same, or the extension directions of two connected track segments may form an angle (a small angle). The extension direction of the multiple sequentially connected track segments is the extension direction of the track assembly.

[0049] like Figure 1 and Figure 2As shown, the track assembly includes a support rail 1 and a toothed rail 2. The support rail 1 and the toothed rail 2 are arranged side by side in a first direction. The first direction is perpendicular to the extension direction of the track assembly. Specifically, the drive unit 3 moves along the extension direction of the track assembly, and the length directions of both the support rail 1 and the toothed rail 2 are consistent with the extension direction of the track assembly. The number of support rails 1 and toothed rails 2 can be one or more. The extension direction of the track assembly, the length direction of the support rail 1, and the length direction of the toothed rail 2 can all be front-to-back directions, and the first direction can be left-to-right directions. The front-to-back and left-to-right directions are as follows: Figure 1 As shown by the arrow in the image.

[0050] Specifically, there are multiple support rails 1, which are sequentially arranged along the extension direction of the track assembly, with adjacent support rails 1 spaced apart. Each support rail 1 is located within a track segment, and the length of the support rail 1 is equal to or less than the length of the corresponding track segment. Spaced-apart support rails 1 reduces the amount of construction work during installation and improves construction efficiency. Specifically, when a track extends in the same direction as two adjacent track segments, the length of the support rail 1 can be less than or equal to the length of that (corresponding) track segment; when a track extends in a different direction than two adjacent track segments, the length of the support rail 1 is (slightly) less than the length of that (corresponding) track segment. For example, multiple support rails 1 are sequentially arranged along the front-to-back direction, with adjacent support rails 1 spaced apart.

[0051] In some embodiments, the distance between two adjacent support rails 1 in the extension direction of the track assembly is less than or equal to a first preset value. A smaller first preset value, where the distance between two adjacent support rails 1 is less than or equal to the first preset value, minimizes the impact when the drive unit 3 passes through the space between two support rails 1. For example, the first preset value is less than the diameter of the support wheel 33, and the distance between two adjacent support rails 1 in the front-rear direction is less than or equal to the first preset value.

[0052] like Figure 3 and Figure 4 As shown, the drive unit 3 includes a drive housing 31, a motor 32, a support wheel 33, and a drive gear 34. The motor 32 is located inside the drive housing 31, and the drive gear 34 is located on the output shaft of the motor 32 and is adapted to mesh with the first gear rail 21 and the second gear rail 22. That is, the rotation of the motor 32 drives the drive gear 34 to mesh with the gear rail 2, thereby driving the drive unit 3 to rotate.

[0053] The support wheel 33 is connected to the drive housing 31 and rotatably mounted on the support rail 1. The support rail 1 supports the support wheel 33, thereby enabling the support rail 1 to support and guide the drive unit 3 so that the drive unit 3 can operate continuously.

[0054] Specifically, the support wheel 33 includes two first support wheels 331 and two second support wheels 332, which are spaced apart in the front-rear direction of the drive housing 31. Thus, when the drive housing 31 passes through the gap between two adjacent support rails 1, one of the first support wheels 331 and the second support wheel 332 passes through the gap first, while the other of the first support wheels 331 and the second support wheel 332 engages with the gear rail 2 to support and guide the drive unit 3. That is, a portion of the support wheel 33 is always on the support rail 1 so that the support rail 1 supports and guides the drive unit 33. For example, if the output shaft of the motor 32 is axial in the left-right direction, the first support wheels 331 and the second support wheels 332 are spaced apart in the front-rear direction.

[0055] like Figure 1 and Figure 2 As shown, in some embodiments, the support rail 1 includes a plurality of first rails 11 and a plurality of second rails 12, which are arranged side by side in a first direction. The plurality of first rails 11 are arranged sequentially along the extension direction of the rail assembly, with adjacent first rails 11 spaced apart. The plurality of second rails 12 are arranged sequentially along the extension direction of the rail assembly, with adjacent second rails 12 spaced apart. Each first rail 11 and each second rail 12 is located within a rail segment, and the length of the first rail 11 and the length of the second rail 12 are less than or equal to the length of the corresponding rail segment. Specifically, the first rails 11 and the second rails 12 are arranged parallel to each other and both support the drive unit 3, thereby making the movement of the drive unit 3 more stable. In the extension direction of the rail assembly, adjacent first rails 11 are spaced apart, and adjacent second rails 12 are spaced apart, which makes the installation of the first rails 11 and the second rails 12 more convenient.

[0056] In some embodiments, both the first track 11 and the second track 12 are tubular, and the support wheel 33 has a groove that mates with the first track 11 and the second track 12. This ensures good stability when the support wheel 33 is mounted on the first track 11 and the second track 12. For example, both the first track 11 and the second track 12 are circular tubes, arranged parallel to each other in the left-right direction, and two support wheels 33 are provided on each side of the drive housing 31 in the left-right direction, so that they respectively mate with the first track 11 and the second track 12.

[0057] like Figure 1 and Figure 2 As shown, in some embodiments, the track assembly also includes a plurality of support frames 13 and track bases 14.

[0058] The first track 11 and the second track 12 are both mounted on the support frame 13. Specifically, the support frame 13 is a U-shaped frame, and the first track 11 and the second track 12 are respectively connected to the two side plates of the support frame 13. Multiple support frames 13 are spaced apart along the extension direction of the track assembly, thereby ensuring that each track segment is equipped with a support frame 13 to support the support rail 1.

[0059] The rail base 14 is connected to one of the support frame 13 and the support rail 1. The rail base 14 has a mounting groove (not shown in the figure), and the toothed rail 2 is disposed in the mounting groove. Specifically, the rail base 14 is located inside the first rail 11 and the second rail 12. The mounting groove includes a first surface, a second surface, and a third surface connected in sequence in a first direction. The second surface is a horizontal surface, and the second and third surfaces are both upwardly extending inclined surfaces or arc surfaces. The first surface, the second surface, and the third surface form a groove extending upward on both sides. The mounting groove has a pin hole, and a fixing seat is provided below the toothed rail 2 (first toothed rail 21 and second toothed rail 22). The fixing seat is fixed together by a pin. Furthermore, by selectively connecting the toothed rail 2 (fixed seat) to one or both of the first, second, and third surfaces, the installation angle and extension direction of the toothed rail 2 (first toothed rail 21 and second toothed rail 22) can be changed. This allows for a slight change in the tilt angle of the drive unit 3 during movement, enabling the drive unit 3 to make turns to pass through corners with smaller angles in the track assembly. At these corners, the first track 11 and second track 12 are adjusted accordingly (adjusting the height difference). This ensures that the extension direction of the toothed rail 2 aligns with the extension direction of the track assembly, allowing the drive unit 3 to move continuously and improving the applicability of the inspection device 100. For example, the rail base 14 is connected to the bottom of the support rail 1 (first track 11 and second track 12). Therefore, when adjacent inspection tracks (track segments) deviate in the horizontal or vertical directions during the advancement of the fully mechanized mining face, the ingot-shaped structure of the mounting groove can adjust the deviation, achieving the arrangement of the toothed rail 2 between the two inspection track segments.

[0060] like Figure 1 and Figure 2 As shown, the toothed rail 2 includes multiple first toothed rails 21 and multiple second toothed rails 22. The first toothed rails 21 and second toothed rails 22 are arranged side by side in a first direction, wherein the first toothed rails 21 and second toothed rails 22 are alternately arranged in sequence in the extension direction of the track assembly, and one of the first toothed rails 21 and second toothed rails 22 has an intersecting portion with the adjacent one in the extension direction of the track assembly. That is to say, the toothed rail 2 has no broken portion in the extension direction of the track assembly, so that the toothed rail 2 is always meshed with the drive gear 34 on the motor 2. The toothed rail 2 can adapt to the bending changes in the vertical and horizontal directions of the conveyor (track section) brought about by the continuous forward movement of the fully mechanized mining face through a secondary floating overlap method, so as to realize the smooth operation of the inspection device 100.

[0061] For example, the first track 11, the first toothed track 21, the second toothed track 22 and the second track 12 are arranged sequentially in the left-right direction, and one of the first toothed track 21 and the second toothed track 22 has an intersecting part with the adjacent other in the front-back direction.

[0062] Specifically, the intersecting portions of the first toothed rail 21 and the second toothed rail 22 are located at the middle position of the corresponding track segment in the extending direction of the track assembly. That is, the ends of the first toothed rail 21 and the second toothed rail 22 are located at the middle position of the corresponding track segment, and the middle portion of the first toothed rail 21 and the second toothed rail 22 is located at the connection point of two adjacent track segments. When there is a certain included angle at the connection point of two adjacent track segments, the middle portion of the first toothed rail 21 and the second toothed rail 22 located at the connection point of two adjacent track segments is easy to bend. For example, the rail base 14 is connected to the ends of the first toothed rail 21 and the second toothed rail 22, and the rail base 14 is located at the middle position of the corresponding track segment in the extending direction of the track assembly. The length ratio of the track segment to the length at the middle position of the track segment is 2:1.

[0063] like Figure 4 As shown, in some embodiments, the drive unit 3 further includes an elastic element 35, which is disposed within the drive housing 31. The motor 32 is slidably disposed within the drive housing 31 in the vertical direction. The elastic element 35 is elastically deformable in the vertical direction and is connected to the motor 32 to drive the motor 32 to move downward. Specifically, the motor 32 is equipped with a reducer, and the motor 3 and the reducer are disposed on a sliding frame. A limiting part 36 is provided within the drive housing 31, and the sliding frame (motor 32) is movably disposed within the limiting part 36 in the vertical direction. The upper end of the elastic element 35 is connected to the top plate inside the drive housing 1, and the lower end of the elastic element 35 is connected to the sliding frame (motor 32), so that the elastic element 35 can continuously press the sliding frame (motor 32) downward, so that the drive gear 34 on the motor 32 can move downward and remain at the lowest position, thereby facilitating the meshing of the drive gear 34 with the gear rail 2. This ensures the meshing force between the drive gear 34 and the toothed rail 2, ensuring the movement of the drive unit 3. Furthermore, when there is a height difference between two adjacent toothed rails 2, it ensures that the drive gear 34 meshes with the corresponding toothed rail 2 during the transition between the two toothed rails 2. For example, each sliding frame (motor 32) cooperates with multiple elastic elements 35, which are springs.

[0064] like Figure 4As shown, in some embodiments, the motor 32 includes a first motor 321 and a second motor 322, and the drive gear 34 includes a first drive gear 341 and a second drive gear 342. The output shaft of the first motor 321 is connected to the first drive gear 341, which is adapted to mesh with the first gear rail 21. The output shaft of the second motor 322 is connected to the second drive gear 342, which is adapted to mesh with the second gear rail 22. This allows the drive unit 3 to move continuously on the track 2.

[0065] like Figure 3 and Figure 5 As shown, in some embodiments, the sensing unit 4 includes a sensing housing 41, an integrated access unit 42, and multiple working elements 43. The integrated access unit 42 is provided with multiple male connectors 44, and each working element 43 is provided with a female connector 45 into which the male connectors 44 can be inserted. Thus, each working element 43 can be inserted into the male connector 44 of the integrated access unit 42 through its female connector 45, thereby enabling the working element 43 to be quickly connected to the integrated access unit 42. For example, the working elements 43 include video cameras, microphones, multi-view cameras, laser scanners, and infrared imagers. For example, the integrated access unit 42 is intrinsically located at the center of the sensing housing 41. The integrated access unit 42 integrates a network switch and a wireless base station internally, and is externally configured with multiple male connectors 44. The male connectors 44 have Ethernet communication and power supply capabilities, and are arranged at certain adjacent distances to facilitate the access of various working elements 43. Various working components 43 are intrinsically safe and can be inserted into the male connector 44 of the integrated access unit 42 via the female connector 45 to achieve power and network access, and to monitor and sense the working surface.

[0066] like Figure 3 As shown, in some embodiments, the shock-absorbing unit 5 includes a shock absorber 51, a support platform 52, and a dustproof enclosure 53. The sensing housing 41 is mounted on the support platform 52, which is located above the drive housing 31. The support platform 52 is connected to the drive housing 31 via the shock absorber 51. Thus, the shock-absorbing unit 5 can offset some of the vibrations generated by the drive unit 3 during movement, thereby reducing the vibrations transmitted from the drive unit 3 to the sensing unit 4. This allows the working elements 43 on the sensing unit 4 to operate in a relatively stable environment, facilitating information collection by the inspection device 100.

[0067] A dustproof enclosure 53 is arranged around the outer periphery of the shock absorber 51. The dustproof enclosure 53 prevents dust from entering the space where the shock absorber 51 is located, so that the shock absorber 51 can continue to operate. For example, the shock absorber 51 is a wire rope shock absorber, and there are four shock absorbers 51, which are evenly distributed on the top surface (corners) of the drive housing 31. The upper end of each shock absorber 51 is connected to the support platform 52, and the lower end of each shock absorber 51 is connected to the drive housing 31.

[0068] The present invention also proposes an inspection system, including an inspection device 100 and a coal mining machine according to an embodiment of the present invention.

[0069] The inspection device 100 is equipped with a cable winch containing a cable. One end of the cable is connected to the coal mining machine, and the other end is connected to the inspection device. The inspection device 100 is powered by the coal mining machine (underground equipment). The cable winch is a retrievable cable winch; one end of the cable in the winch is connected to the coal mining machine for power supply, and the other end is connected to the inspection device 100 for power supply. The inspection device 100 can move with external equipment and travel freely within a certain distance limited by the cable. The cable winch is equipped with a cable tension detection device to monitor the cable's tension. When the cable is fully pulled out and reaches the tension threshold, the cable tension detection device sends a signal to the motion control module, allowing the inspection device to adjust its operating mode and reduce the cable tension.

[0070] The inspection device 100's track assembly is mounted on the cable trough of the scraper conveyor. The track assembly comprises multiple track segments connected sequentially along its extension direction, each track segment corresponding to a single section of the scraper conveyor. Specifically, the length and direction of each track segment are consistent with the length and direction of the corresponding single section of the scraper conveyor. Using the scraper conveyor's cable trough as a base for mounting the track assembly reduces the difficulty and workload of setting it up. For example, the support frame 13 is mounted on the scraper conveyor's cable trough.

[0071] Therefore, the inspection system according to the embodiments of the present invention has the advantages of high applicability of the inspection device 100, high installation efficiency, and easy and stable operation.

[0072] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0073] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0074] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0075] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0076] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0077] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. An inspection device, characterized in that, include: A track assembly, the track assembly including a toothed rail, the toothed rail including a plurality of first toothed rails and a plurality of second toothed rails, the first toothed rails and the second toothed rails being arranged side by side in a first direction, the first direction being perpendicular to the extension direction of the track assembly, wherein the first toothed rails and the second toothed rails are alternately arranged in sequence in the extension direction of the track assembly, and one of the first toothed rails and the second toothed rails has an intersecting portion with the adjacent other in the extension direction of the track assembly. The drive unit includes a drive housing, a motor, and a drive gear. The motor is disposed inside the drive housing, and the drive gear is disposed on the output shaft of the motor and is adapted to mesh with the first gear rail and the second gear rail. The track assembly includes a support rail, and the drive unit further includes a support wheel; The track assembly also includes multiple track segments that are connected sequentially along the extension direction of the track assembly; The support rails are multiple, and the multiple support rails are arranged sequentially along the extension direction of the track assembly with adjacent support rails spaced apart. Each support rail is located within a track segment, and the length of the support rail is equal to or less than the length of the corresponding track segment. The support wheel includes a first support wheel and a second support wheel, which are spaced apart in the front-rear direction of the drive housing.

2. The inspection device according to claim 1, characterized in that, The support rail and the toothed rail are arranged side by side in the first direction; The support wheel is connected to the drive housing and is rotatably mounted on the support rail.

3. The inspection device according to claim 2, characterized in that, The intersecting portions of the first and second toothed rails are located at the middle position of the respective track segments in the extension direction of the track assembly.

4. The inspection device according to claim 2, characterized in that, The support rail includes a plurality of first rails and a plurality of second rails. The first rails and the second rails are arranged side by side in the first direction. The plurality of first rails are arranged sequentially along the extension direction of the rail assembly and adjacent first rails are spaced apart. The plurality of second rails are arranged sequentially along the extension direction of the rail assembly and adjacent second rails are spaced apart. Each first rail and each second rail is located within a rail segment. The length of the first rail and the length of the second rail are less than or equal to the length of the corresponding rail segment.

5. The inspection device according to claim 4, characterized in that, The track assembly also includes Multiple support frames are provided, and the first track and the second track are both mounted on the support frames, with each track segment containing the support frame; The rail base is connected to one of the support frame and the support rail, and the rail base has a mounting groove, in which the toothed rail is disposed.

6. The inspection device according to claim 5, characterized in that, The mounting groove includes a first surface, a second surface, and a third surface connected in sequence in a first direction. The second surface is a horizontal surface, and both the second surface and the third surface are upwardly extending inclined surfaces or arc surfaces.

7. The inspection device according to claim 1, characterized in that, The drive unit also includes an elastic element disposed within the drive housing. The motor is slidably disposed within the drive housing in the vertical direction. The elastic element is elastically deformable in the vertical direction and is connected to the motor to drive the motor to move downward.

8. The inspection device according to claim 1, characterized in that, The motor includes a first motor and a second motor, and the drive gear includes a first drive gear and a second drive gear. The output shaft of the first motor is connected to the first drive gear, and the first drive gear is adapted to mesh with the first gear rail. The output shaft of the second motor is connected to the second drive gear, and the second drive gear is adapted to mesh with the second gear rail.

9. The inspection device according to any one of claims 1-8, characterized in that, It also includes a sensing unit, which includes a sensing housing, an integrated access unit and multiple working elements. The integrated access unit is provided with multiple male connectors, and each working element is provided with a female connector that can be inserted into the male connector.

10. The inspection device according to claim 9, characterized in that, It also includes a shock-absorbing section, which includes a shock absorber and a support platform. The sensing housing is disposed on the support platform, which is located above the drive housing. The support platform is connected to the drive housing through the shock absorber.

11. The inspection device according to claim 10, characterized in that, The shock absorber also includes a dustproof enclosure, which is arranged around the outer periphery of the shock absorber.

12. An inspection system, characterized in that, include: An inspection device, wherein the inspection device is the inspection device according to any one of claims 1-11, the inspection device is provided with a cable winch, and a cable is provided inside the cable winch; A coal mining machine, one end of which is connected to the coal mining machine, and the other end of which is connected to the inspection device.

Images