Transportation and replacement auxiliary device

Abstract

The invention relates to a transportation and replacement auxiliary device which comprises a frame, a fixed platform, a wheel walking mechanism and a crawler walking mechanism, the frame comprises a first frame body and a second frame body which are fixed, one side of the first frame body is provided with a first mounting surface, one side of the second frame body is provided with a second mounting surface, and the first mounting surface and the second mounting surface are arranged at an angle; a carrying space is formed by the other side of the first frame body and the other side of the second frame body; the fixed platform is located in the carrying space and connected to the frame, and the fixed platform is provided with a fixing device for fixing the converter module; the wheel walking mechanism is arranged on the first mounting surface, and the crawler walking mechanism is arranged on the second mounting surface; when one of the wheel walking mechanisms makes contact with the driving face, the other wheel walking mechanism is separated from the driving face. By means of the auxiliary device for transporting and replacing the converter module, transportation of the converter module under different road conditions is achieved, manpower is greatly saved, and the risk that people are hurt by the converter module when the converter module is directly carried manually can be reduced.

Description

Technical Field

[0001] The present disclosure relates to wind turbine generator maintenance auxiliary equipment, and in particular, to a transportation and replacement auxiliary device. Background Art

[0002] The wind turbine inverter system of the wind turbine adopts an AC-DC-AC structure, which rectifies and inverts the energy generated by the permanent magnet synchronous wind turbine through the inverter module and then connects it to the power grid through the transformer. During the operation of the wind turbine, the inverter module is sometimes damaged. Due to the complex internal structure of the module, the entire module must be replaced after damage.

[0003] At present, wind turbines are usually installed outdoors and distributed over a large area, and the converter module is installed in the converter cabinet of the inner power generation platform of the wind turbine. The power generation platform is higher than the ground and requires the use of stairs installed next to the wind turbine to enter and exit. In addition, since the converter module is heavy, if manual replacement and transportation is adopted, a large amount of manpower is required for carrying and lifting, which is not only time-consuming and labor-intensive, but also there is a risk of personal injury during the transportation up and down the stairs. Summary of the invention

[0004] The purpose of the present invention is to provide a transportation and replacement auxiliary device to solve the problem that the existing inverter module is laborious to carry by manpower and is prone to cause risks of personal injury.

[0005] In order to achieve the above-mentioned purpose, the present disclosure provides a transportation and replacement auxiliary device for transporting the inverter module of the wind turbine inverter system, the transportation and replacement auxiliary device includes a frame, a fixed platform, a wheel walking mechanism and a crawler walking mechanism, the frame includes a first frame body and a second frame body that are fixed to each other, one side of the first frame body has a first mounting surface, one side of the second frame body has a second mounting surface, the first mounting surface and the second mounting surface are arranged at an angle, and the other side of the first frame body and the other side of the second frame body construct a loading space; the fixed platform is located in the loading space and is connected to the frame, and the fixed platform is provided with a fixing device for fixing the inverter module; the wheel walking mechanism is arranged on the first mounting surface, and the crawler walking mechanism is arranged on the second mounting surface; wherein, when one of the wheel walking mechanism and the crawler walking mechanism is in contact with the running surface, the other is separated from the running surface.

[0006] Optionally, the transport and replacement auxiliary device further comprises a supporting platform, wherein the supporting platform is connected to the first frame, and the fixed platform is slidably connected to the supporting platform via a first sliding mechanism.

[0007] Optionally, the transport and replacement auxiliary device further includes a lifting device, one end of the lifting device is fixed to the first frame, and the other end of the lifting device is fixed to the supporting platform.

[0008] Optionally, a lifting direction of the lifting device is perpendicular to the first mounting surface, and a sliding direction of the fixed platform on the supporting platform is parallel to the first mounting surface.

[0009] Optionally, the support platform is slidably connected to the second frame via a second sliding mechanism, and a sliding direction of the support platform on the second frame is consistent with a lifting direction of the support platform.

[0010] Optionally, the fixing device includes a first stopper and a second stopper arranged opposite to each other along a first direction and a third stopper and a fourth stopper arranged opposite to each other along a second direction, and the first direction and the second direction are perpendicular; at least one of the first stopper and the second stopper can slide along the first direction and can be locked on the fixed platform to clamp the two ends of the converter module in the first direction, and at least one of the third stopper and the fourth stopper can slide along the second direction and can be locked on the fixed platform to clamp the two ends of the converter module in the second direction.

[0011] Optionally, the first mounting surface is perpendicular to the second mounting surface.

[0012] Optionally, a handle is provided at one end of the second frame away from the first frame.

[0013] Optionally, the wheel walking mechanism includes a plurality of walking wheels, the first frame includes a plurality of sub-frames arranged at intervals along a first direction, the sub-frames are provided with installation cavities, a plurality of walking wheels are rotatably connected in the installation cavities, and the walking wheels are arranged at intervals along a second direction.

[0014] Optionally, the crawler walking mechanism includes a track wheel mechanism arranged at intervals and a drive motor driving the track wheel mechanism, the track wheel mechanism is arranged on the second mounting surface of the second frame, the second frame has a cavity, the drive motor is arranged in the cavity and connected to the gear in the track wheel mechanism.

[0015] Through the above technical solution, when transporting the converter module, the converter module can be first fixed on the fixed platform by a fixing device, and then the wheel walking mechanism or the crawler walking mechanism can be selected according to the required walking surface. For example, when it is necessary to transport on the ground outdoors or on a wind power generation platform, the wheel walking mechanism is selected to contact the driving surface (ground), and the wheel walking mechanism will have a faster transportation speed than the crawler walking mechanism. When it is necessary to go up and down the stairs of the wind turbine, the crawler walking mechanism can be switched to contact the driving surface by rotating the frame, and the crawler walking mechanism can be used to realize the transportation on the stairs. In this way, the transportation and replacement auxiliary device realizes the transportation of the converter module under different road conditions, which greatly saves manpower and shortens the transportation time of the converter module, improves the replacement efficiency of the converter module, and can also reduce the risk of the converter module injuring people when the converter module is directly transported manually.

[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings: Figure 1 It is a three-dimensional structural schematic diagram of a transport inverter module of a transport and replacement auxiliary device provided by an exemplary embodiment of the present disclosure, wherein the wheel walking mechanism is in contact with the driving surface, the crawler walking mechanism is separated from the driving surface, and the inverter is in a retracted position; Figure 2 is a schematic structural diagram of a fixed platform and a supporting platform provided by an exemplary embodiment of the present disclosure; Figure 3 is a schematic diagram of a three-dimensional structure of a transport and replacement auxiliary device for transporting a converter module provided by an exemplary embodiment of the present disclosure, wherein the wheel travel mechanism is separated from the driving surface, the crawler travel mechanism is in contact with the driving surface, and the converter module is in a retracted position; Figure 4 yes Figure 3 A partial enlarged view of the middle A; Figure 5 is a schematic diagram of a three-dimensional structure of a transport and replacement auxiliary device for transporting a converter module provided by an exemplary embodiment of the present disclosure, wherein the converter module is in an extended position through a first sliding mechanism at this time; Figure 6 yes Figure 5 A partial enlarged view of point B in the middle.

[0018] Description of Reference Numerals 10-converter module; 100-frame; 101-first mounting surface; 102-second mounting surface; 103-cargo space; 110-first frame; 120-second frame; 121-cavity; 130-handle; 200-fixed platform; 210-fixed device; 211-first stopper; 212-second stopper; 213-third stopper; 214-fourth stopper; 220-first waist-shaped groove; 230-second waist-shaped groove; 300-wheel travel mechanism; 310-travel wheel; 400- crawler walking mechanism; 410- driving motor; 420- crawler wheel mechanism; 500-support platform; 600-lifting device; 800-first sliding mechanism; 810-first sliding groove; 820-first roller; 900 - second sliding mechanism; 910 - second slide groove; 920 - second roller. DETAILED DESCRIPTION

[0019] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0020] In the description of the present disclosure, it is to be understood that the terms "inside" and "outside" refer to the inside and outside of the corresponding structural contour. In addition, the terms "first", "second", etc. are only used to distinguish one element from another element, and have no order or importance.

[0021] In the description of the present disclosure, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "connected", and "installed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0022] The present invention provides a transport and replacement auxiliary device for transporting a converter module of a fan converter, so as to solve the technical problems existing in the existing manual transport of the converter module.

[0023] like Figures 1 to 6As shown, the transport and replacement auxiliary device provided by the present disclosure includes a frame, a fixed platform, a wheel traveling mechanism and a crawler traveling mechanism. The frame includes a first frame body and a second frame body that are fixed to each other. One side of the first frame body has a first mounting surface, and one side of the second frame body has a second mounting surface. The first mounting surface and the second mounting surface are arranged at an angle, and the other side of the first frame body and the other side of the second frame body construct a cargo space; the fixed platform is located in the cargo space and connected to the frame, and the fixed platform is provided with a fixing device for fixing the inverter module; the wheel traveling mechanism is arranged on the first mounting surface, and the crawler traveling mechanism is arranged on the second mounting surface; wherein, when one of the wheel traveling mechanism and the crawler traveling mechanism is in contact with the running surface, the other is separated from the running surface.

[0024] Through the above technical solution, when transporting the converter module 10, the converter module 10 can be first fixed on the fixed platform 200 through the fixing device 210, and then the wheel walking mechanism 300 or the crawler walking mechanism 400 is selected according to the required walking surface. For example, when it is necessary to transport on the ground outdoors or on a wind power generation platform, the wheel walking mechanism 300 is selected to contact the driving surface (ground), and the wheel walking mechanism 300 will have a faster transportation speed than the crawler walking mechanism 400. When it is necessary to go up and down the stairs of the wind turbine, the crawler walking mechanism 400 can be switched to contact the driving surface by rotating the frame 100, and the crawler walking mechanism 400 is used to realize the transportation on the stairs. In this way, the transportation and replacement auxiliary device realizes the transportation of the converter module 10 under different road conditions, greatly saves manpower and shortens the transportation time of the converter module 10, improves the replacement efficiency of the converter module 10, and can also reduce the risk of the converter module 10 injuring people when the converter module 10 is directly transported by hand.

[0025] like Figure 1 , Figure 2 , Figure 5 as well as Figure 6 As shown, in some optional embodiments, the transport and replacement auxiliary device further includes a support platform 500 , which is connected to the first frame 110 , and the fixed platform 200 is slidably connected to the support platform 500 via a first sliding mechanism 800 .

[0026] The fixed platform 200 is slidably connected to the support platform 500, and the fixed platform 200 can be moved relative to the frame 100 through the first sliding mechanism 800, so that the fixed platform 200 can switch between the retracted position and the extended position, for example, Figures 1 to 3 The fixed platform 200 is in the retracted position, Figure 4The fixed platform 200 in the wind turbine is in the extended position. When the converter module 10 needs to be transferred from the fixed platform 200 to the converter cabinet on the wind turbine platform, or when the converter module 10 needs to be removed from the converter cabinet and transferred to the fixed platform 200, the fixed platform 200 can be moved to the extended position to bring the fixed platform 200 closer to the converter cabinet, shorten the transfer distance of the converter module 10, and make the transfer of the converter module 10 more convenient.

[0027] like Figure 6 As shown, in some optional embodiments, the first sliding mechanism 800 includes a first slide groove 810 and a first roller 820. The first roller 820 is rotatably connected to the fixed platform 200 via a rotating shaft, and the first roller 820 is located in the first slide groove 810. The first roller 820 is limited and guided by the first slide groove 810, thereby realizing the sliding connection of the fixed platform 200 on the supporting platform 500.

[0028] In some optional embodiments, the first sliding mechanisms 800 may be two groups, and the two groups of first sliding mechanisms 800 are arranged at intervals to enable the fixed platform 200 to slide more stably.

[0029] It should be noted that a locking structure may be provided between the fixed platform 200 and the supporting platform 500, and the locking structure may be unlocked to connect the fixed platform 200 and the supporting platform 500. When the transport and replacement auxiliary device is moving as a whole, the fixed platform 200 and the supporting platform 500 may be locked by locking the locking structure, so that the fixed platform 200 and the supporting platform 500 are relatively fixed. When the fixed platform 200 needs to be moved alone, the fixed platform 200 and the supporting platform 500 may be relatively slidable by unlocking the locking structure. For example, the locking structure may be a screw, which is threadedly connected to the fixed platform 200. When locking is required, the threaded end of the screw abuts against the supporting platform 500. When unlocking is required, the threaded end of the screw is separated from the supporting platform 500.

[0030] Of course, in some other embodiments, the first sliding mechanism 800 may also include a guide rod and a slider, the slider having a through hole, the guide rod being inserted in the through hole, so that the slider can slide along the length direction of the guide rod under the limiting action of the through hole, the guide rod is fixed on the support platform 500, and the slider is installed on the fixed platform 200, so that the fixed platform 200 can be moved relative to the support platform 500 through the first sliding mechanism 800 through the sliding cooperation between the slider and the guide rod.

[0031] like Figure 1 and Figure 3As shown, in some optional embodiments, the transport and replacement auxiliary device further includes a lifting device 600 , one end of the lifting device 600 is fixed to the first frame 110 , and the other end of the lifting device 600 is fixed to the supporting platform 500 .

[0032] It is understandable that the installation positions of the converter modules 10 reserved on different converter cabinets may be at different heights. The lifting device 600 is provided to adjust the height of the fixed platform 200 so that the height of the fixed platform 200 can be adjusted to be approximately equal to the installation height of the converter module 10 on the converter cabinet, so as to more conveniently complete the transfer and replacement of the converter module 10.

[0033] In order to improve the lifting support force of the support platform 500 and enable the support platform 500 to move more smoothly, in some optional embodiments, there can be multiple lifting devices 600, and the multiple lifting devices 600 are arranged at intervals and connected to different positions of the support platform 500. Through the synchronous action of the multiple lifting devices 600, the function of controlling the raising or lowering of the support platform 500 is realized.

[0034] It should be noted that the lifting device 600 may adopt an electric telescopic rod or a hydraulic jack, and the present disclosure does not make any specific limitation on this.

[0035] In some optional embodiments, the lifting direction of the lifting device 600 is perpendicular to the first installation surface 101 , and the sliding direction of the fixing platform 200 on the supporting platform 500 is parallel to the first installation surface 101 .

[0036] Since the transport and replacement auxiliary device is moved by using the wheel travel mechanism 300 when moving on the power generation platform, the lifting direction of the lifting device 600 is set to be perpendicular to the first installation surface 101, so that the height of the fixed platform 200 can be adjusted. The sliding direction of the fixed platform 200 is parallel to the first installation surface 101, so that the fixed platform 200 can slide in the horizontal direction.

[0037] like Figure 3 and Figure 4 As shown, in some optional embodiments, the support platform 500 is slidably connected to the second frame 120 via a second sliding mechanism 900 , and the sliding direction of the support platform 500 on the second frame 120 is consistent with the lifting direction of the support platform 500 .

[0038] By providing the second sliding mechanism 900 , it is possible to prevent the support platform 500 from shaking during the ascending or descending process.

[0039] like Figure 4As shown, in some optional embodiments, the second sliding mechanism 900 includes a second slide groove 910 and a second roller 920, the second slide groove 910 is disposed on the second frame 120, the second roller 920 is rotatably connected to the support platform 500 via a second rotating shaft, and the second roller 920 is located in the second slide groove 910 and contacts at least one groove wall of the second slide groove 910. The second slide groove 910 can guide and limit the second roller 920, so that the support platform 500 can slide smoothly.

[0040] Optionally, there may be two second sliding mechanisms 900 , and the two second sliding mechanisms 900 are respectively disposed on opposite sides of the support platform 500 to better provide sliding guides for the support platform 500 .

[0041] In some optional embodiments, the fixing device 210 includes a first stop block 211 and a second stop block 212 arranged relative to each other along a first direction and a third stop block 213 and a fourth stop block 214 arranged relative to each other along a second direction, and the first direction and the second direction are perpendicular; at least one of the first stop block 211 and the second stop block 212 can slide along the first direction and can be locked on the fixed platform 200 to clamp the inverter module 10 at both ends in the first direction, and at least one of the third stop block 213 and the fourth stop block 214 can slide along the second direction and can be locked on the fixed platform 200 to clamp the inverter module 10 at both ends in the second direction. The purpose of fixing the converter module 10 on the fixing platform 200 is achieved by fixing the converter module 10 in the first direction by the first stopper 211 and the second stopper 212, and fixing the converter module 10 in the second direction by the third stopper 213 and the fourth stopper 214. Moreover, when the first frame 110 and the second frame 120 are turned over, the converter module 10 will not be separated from the fixing device 210.

[0042] In some optional embodiments, the fixed platform 200 is provided with a plurality of first waist-shaped grooves 220 extending in the first direction and a plurality of second waist-shaped grooves 230 extending in the second direction, the first stopper 211 and the second stopper 212 are respectively adjustable and locked in the first waist-shaped grooves 220 by bolts, and the third stopper 213 and the fourth stopper 214 are respectively adjustable and locked in the second waist-shaped grooves 230 by bolts. By providing the first waist-shaped grooves, the first stopper 211 and the second stopper 212 can be adjusted in the corresponding first waist-shaped grooves, respectively. By providing the second waist-shaped grooves, the third stopper 213 and the fourth stopper 214 can be adjusted in the corresponding second waist-shaped grooves, respectively.

[0043] In some optional implementations, the first mounting surface 101 is perpendicular to the second mounting surface 102 , so that the first frame 110 and the second frame 120 can be vertically arranged.

[0044] In some optional embodiments, a handle 130 is provided at one end of the second frame 120 away from the first frame 110. The handle 130 can be convenient for the operator to hold, so as to facilitate the operator to flip the frame 100, that is, to switch the wheel travel mechanism 300 and the crawler travel mechanism 400.

[0045] like Figure 1 and Figure 3 As shown, in some optional embodiments, the wheel walking mechanism 300 includes a plurality of walking wheels 310, the first frame 110 includes a plurality of sub-frames arranged at intervals along a first direction, the sub-frames are provided with an installation cavity, and the plurality of walking wheels 310 are rotatably connected in the installation cavity, and the walking wheels 310 are arranged at intervals along a second direction.

[0046] By providing a plurality of sub-frames to provide a mounting base for the running wheel 310, a cavity 121 can be formed between two adjacent sub-frames to reduce the weight of the entire transport and replacement auxiliary device. At the same time, the mounting cavity on the sub-frame can provide a certain degree of protection for the running wheel 310. In addition, since the wheel running mechanism 300 does not require electric drive, the operator can achieve the movement of the frame 100 through the wheel running mechanism 300 by simply pushing the second frame 120, so that the transport and replacement auxiliary device can be used outdoors in places without electricity.

[0047] When the transport and replacement auxiliary device is provided with a plurality of lifting devices 600 , each lifting device 600 is respectively fixed on a different sub-frame.

[0048] Regarding the specific structure of the tracked walking mechanism 400, in some optional embodiments, the tracked walking mechanism 400 includes a track wheel mechanism 420 arranged at intervals and a drive motor 410 for driving the track wheel mechanism 420, the track wheel mechanism 420 is disposed on the second mounting surface 102 of the second frame 120, the second frame 120 has a cavity 121, the drive motor 410 is disposed in the cavity 121 and is connected to the gear in the track wheel mechanism 420.

[0049] The cavity 121 is provided in the second frame 120 to accommodate the drive motor 410, so that the structure of the entire transport and replacement auxiliary device is more compact. The drive motor 410 drives the crawler wheel mechanism 420 to operate, so that the transport and replacement auxiliary device can move through the crawler walking mechanism 400.

[0050] It should be noted that the crawler wheel mechanism 420 includes a crawler track and a driving wheel that drives the crawler track to move. The driving motor 410 is connected to the driving wheel to drive the driving wheel to rotate, and the driving wheel then drives the crawler track to move, thereby realizing the movement of the transportation and replacement auxiliary device on the driving surface through the crawler walking mechanism 400.

[0051] In order to make the conveying device move more smoothly through the crawler walking mechanism 400, in some optional embodiments, the crawler wheel mechanism 420 can be multiple groups, and the multiple groups of crawler wheel mechanisms 420 are arranged in parallel and at intervals, and the drive motor 410 can also be multiple, and each drive motor 410 drives a group of crawler wheel mechanisms 420 respectively. To provide sufficient power for the drive mechanism, and at the same time, the intermediate connecting parts between the drive motor 410 and the crawler wheel mechanism 420 can also be reduced. Of course, in other embodiments, a drive motor 410 can also be set, and multiple groups of crawler wheel mechanisms 420 are connected at the same time through a transmission mechanism, so that one drive motor 410 drives multiple groups of crawler wheel mechanisms 420 to move synchronously at the same time. When multiple groups of drive motors 410 are provided, the multiple groups of drive motors 410 can be arranged in the cavity 121 to keep the structure of the transportation and replacement auxiliary device compact.

[0052] It should be noted that since the crawler walking mechanism 400 is mainly used for walking up the stairs of the wind power generation platform, it is only necessary to connect the drive motor 410 to the power supply on the wind power generation platform through a power cord before use to power the drive motor 410. When climbing stairs using the crawler walking mechanism 400, the operator can provide a certain support force for transporting and replacing the auxiliary device by supporting the first frame 110, and can also provide direction control for the transporting and replacing the auxiliary device. The crawler wheel mechanism 420 includes a crawler and a plurality of gears that cooperate with the crawler.

[0053] In some optional embodiments, a control button for controlling the start / stop of the drive motor is also provided on the first frame 110, so that an operator can control the start / stop action of the drive motor through the control button.

[0054] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0055] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0056] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A transport and replacement auxiliary device for transporting a converter module of a fan converter system, characterized in that: include: A frame, the frame comprising a first frame body and a second frame body fixed to each other, one side of the first frame body having a first mounting surface, one side of the second frame body having a second mounting surface, the first mounting surface and the second mounting surface being arranged at an angle, and the other side of the first frame body and the other side of the second frame body forming a cargo space; A fixed platform, the fixed platform is located in the cargo space and connected to the vehicle frame, and the fixed platform is provided with a fixing device for fixing the inverter module; A wheel travel mechanism, arranged on the first mounting surface; as well as, A crawler walking mechanism, arranged on the second mounting surface; Wherein, when one of the wheel traveling mechanism and the crawler traveling mechanism is in contact with the running surface, the other is separated from the running surface.

2. The transport and replacement auxiliary device according to claim 1, characterized in that: The transport and replacement auxiliary device also includes a support platform, which is connected to the first frame, and the fixed platform is slidably connected to the support platform through a first sliding mechanism.

3. The transport and replacement auxiliary device according to claim 2, characterized in that: The transport and replacement auxiliary device also includes a lifting device, one end of which is fixed to the first frame, and the other end of which is fixed to the supporting platform.

4. The transport and replacement auxiliary device according to claim 3, characterized in that: The lifting direction of the lifting device is perpendicular to the first installation surface, and the sliding direction of the fixed platform on the supporting platform is parallel to the first installation surface.

5. The transport and replacement auxiliary device according to claim 3, characterized in that: The support platform is slidably connected to the second frame via a second sliding mechanism, and the sliding direction of the support platform on the second frame is consistent with the lifting direction of the support platform.

6. The transport and replacement auxiliary device according to any one of claims 1 to 5, characterized in that: The fixing device comprises a first stopper and a second stopper arranged opposite to each other along a first direction, and a third stopper and a fourth stopper arranged opposite to each other along a second direction, wherein the first direction and the second direction are perpendicular to each other; At least one of the first stopper and the second stopper can slide along the first direction and can be locked on the fixed platform to clamp the two ends of the converter module in the first direction, and at least one of the third stopper and the fourth stopper can slide along the second direction and can be locked on the fixed platform to clamp the two ends of the converter module in the second direction.

7. The transport and replacement auxiliary device according to any one of claims 1 to 5, characterized in that: The first mounting surface is perpendicular to the second mounting surface.

8. The transport and replacement auxiliary device according to any one of claims 1 to 5, characterized in that: A handle is disposed at one end of the second frame away from the first frame.

9. The transport and replacement auxiliary device according to any one of claims 1 to 5, characterized in that: The wheel travel mechanism includes a plurality of travel wheels, the first frame includes a plurality of sub-frames arranged at intervals along a first direction, the sub-frames are provided with mounting cavities, a plurality of travel wheels are rotatably connected in the mounting cavities, and the travel wheels are arranged at intervals along a second direction.

10. The transport and replacement auxiliary device according to any one of claims 1 to 5, characterized in that: The crawler walking mechanism includes a crawler wheel mechanism arranged at intervals and a drive motor driving the crawler wheel mechanism. The crawler wheel mechanism is arranged on the second mounting surface of the second frame. The second frame has a cavity. The drive motor is arranged in the cavity and connected to the gear in the crawler wheel mechanism.

Images