Crack inspection equipment for concrete structure of mixed tower fan

Abstract

The utility model relates to the technical field of electric power overhaul equipment, in particular to mixed tower fan concrete structure crack inspection equipment which comprises a camera and further comprises a translation assembly, a lifting assembly, a moving trolley and a circular track, and the camera is arranged on the translation assembly; the translation assembly is detachably arranged on the lifting assembly, and the translation assembly is used for driving the camera to translate in the direction of the tower drum; the lifting assembly is detachably arranged on the moving trolley; the moving trolley is arranged to drive the lifting assembly to move in the circumferential direction of the circular track, the lifting assembly is used for driving the translation assembly to ascend and descend, and the translation assembly is used for driving the camera to translate in the direction of the tower barrel, so that the camera can move in multiple directions around the tower barrel; and furthermore, human eyes are replaced by the camera to inspect cracks on the wall of the cylinder, and a worker does not need to climb the tower cylinder, so that the occurrence of accidents is reduced, and the safety of crack inspection operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power repair equipment, in particular to a device for inspecting cracks in a concrete structure of a mixed tower fan. Background Art

[0002] The tower of a hybrid wind turbine is constructed of both steel and concrete, with a concrete lower section and a steel upper section. For example, CN105715463B discloses a steel-concrete wind turbine tower. This hybrid wind turbine tower bears a variety of complex and variable loads, including its own weight, wind thrust, and blade forces. Furthermore, the tower must have sufficient fatigue strength to withstand vibration loads caused by the wind turbine, such as the effects of startup and shutdown, sudden wind gusts, and changes in the tower base structure.

[0003] As an elastic rigid body, the "mixed tower" type tower will produce a certain degree of swing and distortion. If cracks appear in its concrete structure, it will lead to increased fatigue of the tower structure, creating safety hazards and may even lead to tower collapse accidents to a certain extent. Therefore, it is particularly important to inspect and monitor cracks in the concrete structure of the mixed tower fan.

[0004] At present, the main method for inspecting cracks in the concrete structure of a mixed-tower fan is to perform inspection work outside the concrete structure of the fan by manual climbing. This inspection method has a great safety risk. In order to solve the above technical problems, it is necessary to provide a mixed-tower fan concrete structure crack inspection equipment so that workers can complete the inspection work in a relatively safe environment and reduce the occurrence of accidents. Utility Model Content

[0005] In view of this, the utility model proposes a crack inspection device for the concrete structure of a mixed tower wind turbine, which is provided with a mobile trolley to drive the lifting component to move circumferentially along the ring track, and the lifting component is used to drive the translation component to lift and lower, and the translation component is used to drive the camera to translate toward the tower, so that the camera can move in multiple directions around the tower, thereby facilitating the inspection of cracks on the tower wall by using the camera instead of the human eye, eliminating the need for manual climbing of the tower, reducing the occurrence of accidents, and improving the safety of crack inspection operations.

[0006] The technical solution of the present utility model is achieved as follows:

[0007] The utility model provides a crack inspection device for a concrete structure of a mixed tower fan, comprising a camera, a translation component, a lifting component, a moving trolley and a ring rail, wherein:

[0008] The camera is arranged on the translation component;

[0009] The translation assembly is detachably arranged on the lifting assembly, and the translation assembly is used to drive the camera to translate toward the tower;

[0010] The lifting assembly is detachably arranged on the moving trolley, and the lifting assembly is used to drive the translation assembly to rise and fall;

[0011] The movable trolley is detachably arranged on the ring track, and is used to drive the lifting assembly to move along the circumference of the ring track;

[0012] The ring rail is used to be sleeved on the tower and placed on the ground.

[0013] On the basis of the above technical solution, preferably, the ring track includes a plurality of arc-shaped tracks, wherein:

[0014] A plurality of sections of the arc-shaped tracks are connected end to end to form a ring-shaped ring track, and two adjacent arc-shaped tracks are connected by bolts.

[0015] On the basis of the above technical solution, preferably, the mobile car includes a car body, wheels and a control screen, wherein:

[0016] The bottom of the vehicle body is rotatably provided with a plurality of wheels, and the top of the vehicle body is fixedly connected to the control screen;

[0017] The top of the arc track is provided with an arc groove, and the arc grooves on several sections of the arc track are connected end to end to form a ring-shaped track groove;

[0018] The wheel is arranged to roll on the inner side of the track groove;

[0019] The lifting assembly is arranged on the vehicle body.

[0020] On the basis of the above technical solution, preferably, the lifting assembly includes a column, a lifting platform, a fixed pulley, an electric winch and a load-bearing rope, wherein,

[0021] The lower end of the column is embedded in the top of the vehicle body and fixedly connected by bolts, and the column passes through the lifting platform and is slidably connected;

[0022] The fixed pulley is rotatably arranged on the top of the column;

[0023] The electric winch is fixedly arranged on the top of the lifting platform;

[0024] One end of the load-bearing rope is fixedly arranged on the top of the lifting platform, and the other end is passed upward around the fixed pulley and then wound downward on the drum of the electric winch;

[0025] The translation assembly is arranged on one side of the lifting platform.

[0026] On the basis of the above technical solution, preferably, the column includes several sections of support columns, wherein:

[0027] Several sections of the support columns are stacked vertically to form a column, and two adjacent sections of the support columns are connected by bolts.

[0028] On the basis of the above technical solution, preferably, the translation assembly includes an electric linear slide and a translation seat, wherein:

[0029] One end of the electric linear slide is arranged on the lifting platform, and the output end of the electric linear slide is fixedly connected to the translation seat;

[0030] The camera is arranged on the translation seat.

[0031] On the basis of the above technical solution, preferably, the electric linear slide comprises an I-rail, a rail wheel, a U-shaped wheel frame, and a translation motor, wherein:

[0032] One end of the I-rail is embedded in the lifting platform and fixedly connected via bolts;

[0033] The rail wheels are provided for rolling in the grooves on both sides of the I-rail;

[0034] The U-shaped wheel frame is sleeved on the outer side of the bottom of the I-rail, and the side of the U-shaped wheel frame is rotatably connected to the central axis of the rail wheel;

[0035] The translation motor is fixedly arranged on the side of the U-shaped wheel frame, and the output shaft of the translation motor is fixedly connected to the central axis of one of the rail wheels;

[0036] The translation seat is fixedly arranged on the side of the U-shaped wheel frame, and the translation seat is located below the translation motor.

[0037] On the basis of the above technical solution, preferably, a protrusion is provided between the translation seat and the translation motor, wherein:

[0038] The protrusion is fixedly arranged on the translation seat;

[0039] The translation motor is placed on the protrusion.

[0040] On the basis of the above technical solution, preferably, it further includes a flip motor, wherein,

[0041] The flip motor is fixedly arranged on the translation seat, and the output end of the flip motor is fixedly connected to the camera. The flip motor is used to drive the camera to flip vertically.

[0042] On the basis of the above technical solution, preferably, a support plate is further included, wherein:

[0043] The support plate is fixedly arranged on the translation seat;

[0044] The output shaft of the flip motor passes through the support plate in a horizontal direction and is then fixedly connected to the camera.

[0045] The utility model of a crack inspection device for a concrete structure of a mixed tower fan has the following beneficial effects compared with the prior art:

[0046] (1) By setting up a mobile trolley to drive the lifting assembly to move circumferentially along the ring track, the lifting assembly to drive the translation assembly to lift and lower, and the translation assembly to drive the camera to translate toward the tower, the camera can be moved in multiple directions around the tower, thereby facilitating the use of the camera to replace the human eye to inspect cracks on the tower wall, eliminating the need for manual climbing of the tower, reducing the occurrence of accidents, and improving the safety of crack inspection operations.

[0047] (2) A flip motor is provided to drive the camera to flip vertically, thereby facilitating adjustment of the camera's orientation and improving convenience during crack inspection operations.

[0048] (3) By arranging the translation component to be detachably arranged on the lifting component, the lifting component to be detachably arranged on the moving trolley, and the moving trolley to be detachably arranged on the ring rail, the components can be disassembled and combined, which is convenient for transportation.

[0049] (4) A circular ring track is formed by connecting several sections of arc-shaped tracks end to end. Two adjacent arc-shaped tracks are connected by bolts, which facilitates the disassembly and assembly of the ring track and facilitates transportation.

[0050] (5) A plurality of support columns are stacked vertically to form a column. Two adjacent support columns are connected by bolts, which facilitates the disassembly and assembly of the columns and facilitates transportation. At the same time, the number of stacked support columns can be increased or decreased according to the height of the tower to adapt to the use of towers of different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0052] Figure 1 This is a three-dimensional diagram of a device for inspecting cracks in a concrete structure of a mixed-tower fan according to the present invention;

[0053] Figure 2 A three-dimensional diagram of another perspective of a device for inspecting cracks in a concrete structure of a mixed-tower fan according to the present invention;

[0054] Figure 3 It is a partial stereogram of the translation component;

[0055] Figure 4 It is a partial stereogram of the ring track;

[0056] Figure 5 It is a three-dimensional diagram of the curved track;

[0057] Figure 6 A three-dimensional diagram of a support column;

[0058] In the figure: 1. Camera; 2. Translation assembly; 3. Lifting assembly; 4. Moving trolley; 5. Annular rail; 6. Flipping motor; 7. Support plate; 21. Electric linear slide; 22. Translation seat; 31. Column; 32. Lifting platform; 33. Fixed pulley; 34. Electric winch; 35. Load-bearing rope; 41. Vehicle body; 42. Wheel; 43. Control panel; 51. Arc track; 211. I-rail; 212. Rail wheel; 213. U-shaped wheel frame; 214. Translation motor; 311. Support column; 501. Track groove; 2201. Protrusion; 5011. Arc groove. DETAILED DESCRIPTION

[0059] The following will be combined with the specific embodiments of the present invention to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0060] like Figure 1-6 As shown, a device for inspecting cracks in a concrete structure of a mixed-tower fan of the present invention comprises a camera 1, a translation component 2, a lifting component 3, a moving trolley 4 and a ring rail 5.

[0061] The ring rail 5 is used to be mounted on the tower and placed on the ground. Specifically, Figure 4As shown, the ring track 5 includes a plurality of arc-shaped rail sections 51, which are connected end to end to form a circular ring-shaped ring track 5. Two adjacent arc-shaped rails 51 are connected by bolts, wherein the two adjacent arc-shaped rails 51 are connected by magnetic screws, such as Invis Mx invisible magnetic screws. For easy installation, large holes are provided at both ends of the arc-shaped rail 51, and invisible magnetic screws are pre-embedded in the holes. Invisible magnetic screws have been widely used in high-end furniture production. Therefore, its specific installation method can be known in the prior art and will not be described in detail in this embodiment.

[0062] The camera 1 is arranged on the translation component 2. The camera 1 is a wireless camera, which can be connected to the terminal through wireless transmission, such as the user's mobile phone, tablet computer, etc. The real-time information of the side of the tower is scanned by the camera 1 and transmitted to the mobile phone or tablet computer through wireless transmission for the user to watch. A deep learning model, such as the YOLOX series, can be installed in the mobile phone or tablet computer. The deep learning model is used to realize target detection of defect images and feedback to the on-site staff for realizing accurate identification of crack defects in the concrete structure of the mixed tower wind turbine, thereby realizing structural health monitoring of the mixed tower.

[0063] The moving trolley 4 is detachably arranged on the ring rail 5 and is used to drive the lifting assembly 3 to move along the circumference of the ring rail 5. Specifically, Figure 4 As shown, the mobile vehicle 4 includes a vehicle body 41 , wheels 42 and a control screen 43 .

[0064] Among them, a number of wheels 42 are rotatably provided at the bottom of the vehicle body 41, a control screen 43 is fixedly connected to the top of the vehicle body 41, and the lifting assembly 3 is arranged on the vehicle body 41; the control screen 43 is used to control the translation assembly 2 and the lifting assembly 3 to perform their respective actions, so the control screen 43 is connected to the motor components of the translation assembly 2 and the lifting assembly 3 respectively through cables. In addition, the control screen 43 can be any one of a mobile phone or a tablet computer.

[0065] An arc-shaped groove 5011 is provided at the top of the arc-shaped track 51, wherein the cross section of the arc-shaped groove 5011 is in the shape of an I. The arc-shaped grooves 5011 on several sections of the arc-shaped track 51 are connected end to end to form a ring-shaped track groove 501; a number of wheels 42 are set to roll on the inner side of the track groove 501; when the detection position needs to be changed, the mobile cart 4 is pushed to move on the ring track 5. During the process, the wheels 42 roll on the inner side of the track groove 501. When the mobile cart 4 is in place, the pushing of the mobile cart 4 is stopped.

[0066] In order to improve the stability of the mobile trolley 4 after parking, a hand screw is vertically penetrated on the car body 41. The hand screw is connected to the car body 41. When the mobile trolley 4 is parked, the hand screw is tightened so that its lower end is against the top surface of the ring rail 5 to achieve locking, which is used to fix the position of the mobile trolley 4. By fixing the mobile trolley 4, the camera 1 has better stability during the lifting and translation process, is less likely to shake, and improves the clarity of the camera.

[0067] The lifting assembly 3 is detachably mounted on the mobile trolley 4 and is used to drive the translation assembly 2 to move up and down. Figure 2-3 As shown, the lifting assembly 3 includes a column 31, a lifting platform 32, a fixed pulley 33, an electric winch 34 and a load-bearing rope 35.

[0068] Among them, an inlay groove is provided on the top of the car body 41, and the lower end of the column 31 is embedded in the inlay groove on the top of the car body 41 and fixedly connected by a bolt. The bolt passes horizontally through the side of the car body 41 and is threadedly connected, and one end of the bolt extends into the inlay groove to support the side of the column 31, thereby fixing the lower end of the column 31 to the car body 41.

[0069] The column 31 passes through the lifting platform 32 and is slidably connected. One side of the lifting platform 32 is connected to the translation component 2. In this structure, the column 31 adopts a multi-section design, which includes several sections of support columns 311. Several sections of support columns 311 are stacked vertically to form the column 31. The adjacent two sections of support columns 311 are connected by bolts, which is the same as the connection method of several sections of arc rails 51. The adjacent two sections of support columns 311 are also connected by magnetic screws.

[0070] The fixed pulley 33 is rotatably arranged on the top of the column 31 . Specifically, one fixed pulley 33 is arranged on the top of each column 31 , and a load-bearing rope 35 is arranged on each fixed pulley 33 . The two load-bearing ropes 35 are symmetrically arranged on both sides of the column 31 .

[0071] The electric winch 34 is fixedly set on the top of the lifting platform 32. The electric winch 34 has two drums, each of which reels a load-bearing rope 35. Specifically, one end of the load-bearing rope 35 is fixedly set on the top of the lifting platform 32, and the other end is passed around the fixed pulley 33 and then wound downward on the drum of the electric winch 34; when the electric winch 34 is powered on, the drum of the electric winch 34 reels or unreels the load-bearing rope 35. When reeling, the lifting platform 32 slides upward along the column 31 under the traction of the load-bearing rope 35. When unreeling, the lifting platform 32 slides downward along the column 31 by its own weight, thereby realizing the lifting and lowering action of the lifting platform 32.

[0072] In the lifting assembly 3, the electric winch 34 includes a reducer motor, which is fixed on the lifting platform 32. A spur gear is fixed on the output shaft of the reducer motor. The electric winch 34 also includes a drum. Two drums are coaxially arranged on the top of the lifting platform 32. The two drums are respectively connected to a load-bearing rope 35. A large gear is fixed at one end of the drum, and the large gear is engaged with the spur gear. When the reducer motor is energized, its output shaft drives the spur gear to rotate, the spur gear drives the large gear to rotate, and the large gear drives the drum to rotate, which is used to realize the winding and unwinding actions.

[0073] The translation assembly 2 is detachably mounted on the lifting assembly 3 and is used to drive the camera 1 to translate toward the tower. Specifically, Figure 2 As shown, the translation assembly 2 includes an electric linear slide 21 and a translation seat 22, wherein one end of the electric linear slide 21 is set on the lifting platform 32, and the output end of the electric linear slide 21 is fixedly connected to the translation seat 22; the camera 1 is set on the translation seat 22.

[0074] In the translation assembly 2, the electric linear slide 21 includes an I-rail 211, a rail wheel 212, a U-shaped wheel frame 213 and a translation motor 214, wherein:

[0075] One end of the I-rail 211 is embedded in the lifting platform 32 and fixedly connected by bolts. Specifically, a through hole is provided horizontally on the lifting platform 32, and one end of the I-rail 211 is embedded in the through hole. A bolt is provided below the through hole. The bolt vertically penetrates the lifting platform 32 and is screwed, and the upper end of the bolt extends into the through hole to support the bottom of the I-rail 211, thereby fixing the I-rail 211 and the lifting platform 32.

[0076] like Figure 3 As shown, a number of rail wheels 212 are rollingly arranged in the grooves on both sides of the I-rail 211; the U-shaped wheel frame 213 is sleeved on the outside of the bottom of the I-rail 211, and the side of the U-shaped wheel frame 213 is rotatably connected to the central axis of the rail wheel 212; the translation motor 214 is fixedly arranged on the side of the U-shaped wheel frame 213, and the output shaft of the translation motor 214 is fixedly connected to the central axis of one of the rail wheels 212; the translation seat 22 is fixedly arranged on the side of the U-shaped wheel frame 213, and the translation seat 22 is below the translation motor 214.

[0077] When the translation motor 214 is powered on, its output shaft drives one of the rail wheels 212 to rotate, and the rail wheel 212 drives the other rail wheels 212 to roll in the grooves on both sides of the I-rail 211. During this process, the rail wheel 212 drives the U-shaped wheel frame 213 to translate, and the U-shaped wheel frame 213 drives the translation seat 22 to translate.

[0078] To facilitate the installation of the translation motor 214, a protrusion 2201 is provided between the translation seat 22 and the translation motor 214, wherein the protrusion 2201 is fixedly provided on the translation seat 22; the translation motor 214 is placed on the protrusion 2201, and the installation height of the translation motor 214 is increased by the protrusion 2201, so that the central axis of the translation motor 214 and one of the rail wheels 212 are coaxially arranged.

[0079] In the above-mentioned mixed tower fan concrete structure crack inspection equipment, two adjacent arc-shaped rails 51 are connected by bolt fixing, which is convenient for the disassembly and assembly of the ring rail 5 and convenient for transportation. At the same time, two adjacent sections of support columns 311 are connected by bolt fixing, which is convenient for the disassembly and assembly of the column 31 and convenient for transportation. At the same time, it is convenient for maintenance and replacement. Moreover, since the column 31 is composed of multiple sections of support columns 311, the number of stacked support columns 311 can be increased or decreased according to the height of the tower to adapt to the use of towers of different heights.

[0080] like Figure 3 As shown, a crack inspection device for a concrete structure of a mixed tower fan of the present invention also includes a flip motor 6, wherein the flip motor 6 is fixedly arranged on a translation seat 22, and the output end of the flip motor 6 is fixedly connected to the camera 1, and the flip motor 6 is used to drive the camera 1 to flip vertically, thereby increasing the viewing angle of the camera 1 and increasing the detectable range.

[0081] In order to improve the stability of the camera 1 when it is flipped, a support plate 7 is fixedly set on the translation seat 22; the output shaft of the flip motor 6 passes through the support plate 7 in the horizontal direction and is then fixedly connected to the camera 1. When the flip motor 6 is powered on, its output shaft rotates on the support plate 7, and the stability is better.

[0082] The method of using the concrete structure crack inspection device of a mixed tower fan of the utility model is as follows:

[0083] First, install the ring rail 5 on the ground at the root of the tower. After the ring rail 5 is installed, the tower is located on the inner side of the ring rail 5 and is concentric. When installing the ring rail 5, slide the moving trolley 4 on the ring rail 5, then install the lifting assembly 3 on the moving trolley 4, and then install the camera 1 on the flip motor 6, and then install the translation assembly 2 on the lifting assembly 3.

[0084] During inspection, the lens of camera 1 is pointed toward the foundation of the tower, and then the mobile trolley 4 is moved around the tower on the circular track 5. The surface of the foundation is photographed in real time by camera 1 to collect foundation data. During the process, the lateral position of camera 1 is adjusted by the translation component 2 to increase the collection radius. After the foundation data collection is completed, the camera 1 is flipped to face the side of the tower. The different parts of the tower are photographed by the cooperation of the translation component 2, the lifting component 3 and the mobile trolley 4. The collected images and data are transmitted to the terminal in real time to provide original data for subsequent analysis.

[0085] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for inspecting cracks in a concrete structure of a mixed tower fan, comprising a camera (1), characterized in that: It also includes a translation component (2), a lifting component (3), a moving trolley (4) and a ring rail (5), wherein: The camera (1) is arranged on the translation component (2); The translation assembly (2) is detachably arranged on the lifting assembly (3), and the translation assembly (2) is used to drive the camera (1) to translate toward the tower; The lifting assembly (3) is detachably arranged on the moving trolley (4), and the lifting assembly (3) is used to drive the translation assembly (2) to rise and fall; The movable trolley (4) is detachably arranged on the ring rail (5), and the movable trolley (4) is used to drive the lifting assembly (3) to move along the circumferential direction of the ring rail (5); The ring track (5) is used to be sleeved on the tower and placed on the ground, and the ring track (5) includes a plurality of arc-shaped tracks (51), wherein the plurality of arc-shaped tracks (51) are connected end to end to form the ring track (5) in a circular shape, and two adjacent arc-shaped tracks (51) are connected by bolts. The mobile vehicle (4) comprises a vehicle body (41), wheels (42) and a control screen (43), wherein the bottom of the vehicle body (41) is rotatably provided with a plurality of wheels (42), and the top of the vehicle body (41) is fixedly connected to the control screen (43); the top of the arc track (51) is provided with an arc groove (5011), and the arc grooves (5011) on a plurality of sections of the arc track (51) are connected end to end to form a ring-shaped track groove (501); the wheels (42) are rollingly provided on the inner side of the track groove (501); and the lifting assembly (3) is provided on the vehicle body (41); The lifting assembly (3) comprises a column (31), a lifting platform (32), a fixed pulley (33), an electric winch (34) and a load-bearing rope (35), wherein the lower end of the column (31) is embedded in the top of the vehicle body (41) and fixedly connected by bolts, and the column (31) passes through the lifting platform (32) and is slidably connected; the fixed pulley (33) is rotatably arranged on the top of the column (31); the electric winch (34) is fixedly arranged on the top of the lifting platform (32); one end of the load-bearing rope (35) is fixedly arranged on the top of the lifting platform (32), and the other end is wound around the fixed pulley (33) upwards and then wound downwards on the drum of the electric winch (34); the translation assembly (2) is arranged on one side of the lifting platform (32).

2. The device for inspecting cracks in a concrete structure of a mixed-tower fan according to claim 1, characterized in that: The column (31) includes several sections of support columns (311), wherein: Several sections of the support columns (311) are stacked vertically to form a column (31), and two adjacent sections of the support columns (311) are connected by bolt fixing.

3. The crack inspection device for concrete structure of a mixed tower fan according to claim 1, characterized in that: The translation assembly (2) comprises an electric linear slide (21) and a translation seat (22), wherein: One end of the electric linear slide (21) is arranged on the lifting platform (32), and the output end of the electric linear slide (21) is fixedly connected to the translation seat (22); The camera (1) is arranged on the translation seat (22).

4. The device for inspecting cracks in a concrete structure of a mixed-tower fan according to claim 3, characterized in that: The electric linear slide (21) comprises an I-shaped rail (211), a rail wheel (212), a U-shaped wheel frame (213) and a translation motor (214), wherein: One end of the I-rail (211) is embedded in the lifting platform (32) and fixedly connected via bolts; A plurality of rail wheels (212) are provided for rolling in the grooves on both sides of the I-rail (211); The U-shaped wheel frame (213) is sleeved on the outside of the bottom of the I-shaped rail (211), and the side of the U-shaped wheel frame (213) is rotatably connected to the central axis of the rail wheel (212); The translation motor (214) is fixedly arranged on the side of the U-shaped wheel frame (213), and the output shaft of the translation motor (214) is fixedly connected to the central axis of one of the rail wheels (212); The translation seat (22) is fixedly arranged on the side of the U-shaped wheel frame (213), and the translation seat (22) is located below the translation motor (214).

5. The device for inspecting cracks in a concrete structure of a mixed-tower fan according to claim 4, characterized in that: A protrusion (2201) is provided between the translation seat (22) and the translation motor (214), wherein: The protrusion (2201) is fixedly arranged on the translation seat (22); The translation motor (214) is placed on the protrusion (2201).

6. The device for inspecting cracks in a concrete structure of a mixed-tower fan according to claim 3, characterized in that: Also includes a turning motor (6), wherein, The flip motor (6) is fixedly arranged on the translation seat (22), the output end of the flip motor (6) is fixedly connected to the camera (1), and the flip motor (6) is used to drive the camera (1) to flip vertically.

7. The device for inspecting cracks in a concrete structure of a mixed-tower fan according to claim 6, characterized in that: Also included is a support plate (7), wherein: The support plate (7) is fixedly arranged on the translation seat (22); The output shaft of the flip motor (6) passes through the support plate (7) in the horizontal direction and is then fixedly connected to the camera (1).

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