Mobile platform

Abstract

The utility model provides a mobile platform. The mobile platform comprises a supporting assembly, a lifting device and a working platform assembly. The lifting device is arranged on the supporting assembly and drives the working platform assembly to ascend and descend. The device further comprises a diagonal bracing ladder and a diagonal bracing rod. One end of the diagonal bracing ladder is hinged to the working platform assembly; the inclined supporting rod is an inclined supporting rod with adjustable length, the first end of the inclined supporting rod is hinged with the inclined supporting ladder, and the second end of the inclined supporting rod is hinged with the supporting assembly. According to the technical scheme, the working platform assembly is connected with the supporting assembly through the lifting device, the height-adjustable moving platform is formed, and therefore the height-adjustable moving platform can adapt to wind power cabin hubs of different heights. In addition, in cooperation with adjustment of the working platform assembly, the angle of the inclined strut ladder can be adjusted so as to adapt to the working platform assemblies with different heights.

Description

Technical Field

[0001] This utility model belongs to the field of wind turbine technology, and in particular relates to a mobile platform. Background Technology

[0002] The height of existing mobile platforms is not adjustable. Different models of wind turbines have different nacelle hub heights. During factory production, different models of turbines are often installed and switched. The existing solution is to customize mobile platforms of different heights to suit different wind turbine nacelle hubs, thus increasing the variety of mobile platforms. Utility Model Content

[0003] To overcome the above technical problems, this utility model provides a mobile platform, which includes a support assembly, a lifting device, and a work platform assembly; the lifting device is disposed on the support assembly and drives the work platform assembly to rise and fall; it also includes a diagonal ladder and diagonal bracing rods; one end of the diagonal ladder is hinged to the work platform assembly;

[0004] The diagonal brace is an adjustable length diagonal brace, with its first end hinged to the diagonal bracing ladder and its second end hinged to the support assembly.

[0005] In the above technical solution, a lifting device is used to connect the work platform assembly and the support assembly, forming a height-adjustable mobile platform, which can be adapted to wind turbine nacelle hubs of different heights. Furthermore, in conjunction with the adjustment of the work platform assembly, the inclined support ladder is also angle-adjustable to accommodate work platform assemblies of different heights.

[0006] In one specific implementation scheme, a guiding device is also included, the guiding device comprising a plurality of guide posts, one end of each guide post being fixedly connected to the work platform assembly, and the other end of each guide post being slidably connected to the support assembly.

[0007] In one specific implementation, the support assembly includes a support frame and a first roller disposed on the support frame; the lifting device is disposed on the support frame, one end of the inclined ladder is hinged to the support frame; and the second end of the inclined strut is hinged to the support frame.

[0008] In one specific implementation, a handwheel rotatably connected to the support frame is also included, the handwheel being used to drive the lifting device to move up and down.

[0009] In one specific implementation, the inclined ladder includes multiple steps and two inclined support assemblies located on both sides of the multiple steps. Each inclined support assembly includes a first support rod and a second support rod, and the first support rod and the second support rod are respectively hinged to the work platform assembly; one end of each step is respectively hinged to the first support rod and the second support rod on the corresponding side.

[0010] In one specific implementation, a second roller is provided at the end of the inclined ladder away from the work platform assembly.

[0011] In one specific implementation, the work platform assembly includes a support platform, which is fixedly connected to the lifting device and hinged to the inclined ladder.

[0012] It also includes a first guardrail gate located on the side of the support platform near the inclined ladder, and a second guardrail gate located on the side away from the inclined ladder; it also includes guardrails located on the other two opposite sides of the support platform.

[0013] In one specific implementation, the work platform assembly also includes a docking platform for contacting the wind turbine nacelle hub, the docking platform being hinged to the side of the support platform opposite to the inclined strut ladder.

[0014] In one specific implementation scheme, an elastic protective body is provided on the side of the docking platform away from the supporting platform.

[0015] In one specific implementation, a connecting component is also included, the connecting component comprising a first connecting component fixedly connected to the second protective door, and a second connecting component fixedly connected to the support component. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of the mobile platform provided by this utility model;

[0017] Figure 2 A side view of the mobile platform provided by this utility model;

[0018] Figure 3 A schematic diagram of the end of the mobile platform provided by this utility model;

[0019] Figure 4 A top view of the mobile platform provided by this utility model;

[0020] Figure 5 A schematic diagram of the docking platform provided by this utility model;

[0021] Figure 6 and Figure 7A schematic diagram of the lifting mechanism of the mobile platform provided by this utility model. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0023] It should be noted that, unless otherwise defined, the technical or scientific terms used in one or more embodiments of this specification should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar words used in one or more embodiments of this specification do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] To facilitate understanding of the mobile platform provided in this application embodiment, its application scenario is first described. The mobile platform provided in this application embodiment is used in wind turbines. In use, it cooperates with the wind turbine nacelle hub, allowing workers to climb the mobile platform for operation. However, different models of wind turbines have different nacelle hub heights, while current mobile platforms are all fixed-height platforms, resulting in poor adaptability. Therefore, this application embodiment provides a mobile platform to improve its adaptability. The mobile platform provided in this application embodiment is described in detail below with reference to the specific accompanying drawings.

[0025] refer to Figure 1 and Figure 2 As shown, Figure 1 This paper shows a schematic diagram of the overall structure of the mobile platform provided in an embodiment of this application. Figure 2A side view of the mobile platform provided in this embodiment is shown. The mobile platform provided in this embodiment is a height-adjustable mobile platform to adapt to different wind turbine nacelle hub heights. Specifically, the main structure of the mobile platform includes a support component 200, a lifting device 500, and a work platform component 100. The support component 200 serves as the support structure for the entire mobile platform, supporting the lifting device 500 and the work platform component 100. In this embodiment, the support component 200 is a movable support component to facilitate the movement of the entire mobile platform. The work platform component 100 is the component for workers to stand on, allowing them to work while standing. The lifting device 500 is located on the support component 200 and is used to drive the work platform component 100 to rise and fall, adjusting the worker's standing height. When adapting to wind turbine nacelle hubs of different heights, the height of the work platform component 100 can be adjusted via the lifting device 500 so that workers can stand at a suitable height to work. Figure 1 and Figure 2 As shown, along the direction perpendicular to the placement surface of the mobile platform (vertical direction), the support component 200, the lifting device 500, and the work platform component 100 are arranged in sequence, with the support component 200 located at the bottom and the work platform component 100 located at the top. The lifting device 500 is located between the support component 200 and the work platform component 100 and is used to connect the support component 200 and the work platform component 100.

[0026] Continue to refer to Figure 1 and Figure 2 The mobile platform provided in this embodiment also includes a diagonal ladder 300 and a diagonal support rod 400. The diagonal ladder 300 is used to facilitate workers' access to and from the work platform assembly 100. In use, one end of the diagonal ladder 300 is hinged to the work platform assembly 100, while the other end rests against the placement surface of the mobile platform. This allows the diagonal ladder 300 to adjust its tilt angle by rotating relative to the work platform assembly 100 when the height of the work platform assembly 100 changes, ensuring that the diagonal ladder 300 can be supported on the placement surface of the mobile platform. When workers use the diagonal ladder 300, it provides stable support.

[0027] In addition, to improve the stability of the inclined ladder 300, this embodiment also provides an inclined support rod 400, which is an adjustable-length inclined support rod 400. In use, the first end of the inclined support rod 400 is hinged to the inclined ladder 300, and the second end of the inclined support rod 400 is hinged to the support assembly 200. For example, when the work platform assembly 100 rises to a certain height, the inclined ladder 300 rotates towards the support assembly 200 (the angle between the inclined ladder 300 and the vertical direction decreases), and the length of the inclined support rod 400 can be shortened and locked to provide stable support for the inclined ladder 300. When the work platform assembly 100 descends to a certain height, the inclined ladder 300 rotates away from the support assembly 200 (the angle between the inclined ladder 300 and the vertical direction increases), and the length of the inclined support rod 400 increases and is locked to provide stable support for the inclined ladder 300.

[0028] As can be seen from the above description, the mobile platform provided in this application embodiment connects the work platform component 100 and the support component 200 using a lifting device 500 to form a height-adjustable mobile platform, thereby adapting to wind turbine nacelle hubs of different heights. Furthermore, in conjunction with the adjustment of the work platform component 100, the inclined support ladder 300 is also angle-adjustable to adapt to work platform components 100 of different heights.

[0029] Please refer to the above. Figures 1-5 , Figure 3 A side view of the end of the mobile platform provided in an embodiment of this application is shown. Figure 4 A top view of the mobile platform provided in an embodiment of this application is shown. Figure 5 A schematic diagram of the docking platform 120 provided in this embodiment is shown. To ensure the stability of the lifting device 500 when driving the work platform assembly 100 to rise and fall, the mobile platform provided in this embodiment also includes a guiding device, which includes multiple guide posts 700. One end of each guide post 700 is fixedly connected to the work platform assembly 100, while the other end is slidably connected to the support assembly 200. When the work platform assembly 100 is driven to rise and fall by the lifting device 500, the guide post 700 also slides relative to the support assembly 200, thereby providing guidance for the work platform assembly 100 during rising and falling, ensuring the stability of the work platform assembly 100 during rising and falling. It should be understood that the number of guide posts 700 provided in this embodiment can be different, such as two, three, four, etc. In one feasible solution, when the support surface supporting the worker in the work platform assembly 100 is rectangular, there are four guide columns 700. The four guide columns 700 are arranged at the four corners of the support surface to ensure that the support surface can be raised and lowered horizontally during the lifting and lowering process, thereby improving the stability of the work platform assembly 100 during the lifting and lowering process.

[0030] Continue to refer to Figure 2 and Figure 3 The support assembly 200 provided in this application embodiment includes a support frame 210 and a first roller 220 disposed on the support frame 210. The support frame 210 is the main component providing support in the support assembly 200. When the support assembly 200 cooperates with the diagonal brace 400 and the lifting device 500, one end of the diagonal brace 300 is hinged to the support frame 210; the second end of the diagonal brace 400 is hinged to the support frame 210 to provide stable support. In a specific example, the support frame 210 can be a rectangular frame composed of profiles, which can provide stable support. The second end of the diagonal brace 400 can be hinged to the profile at the bottom of the support frame 210 to provide a stable support effect.

[0031] The first roller 220 is disposed below the support frame 210, and the first roller 220 is used to facilitate the movement of the support assembly 200. It should be understood that the first roller 220 may be a locking roller, such as a caster wheel with a locking function. When the moving platform moves, the locking of the first roller 220 can be released; when the moving platform moves into position, the first roller 220 can be locked to improve the stability of the moving platform.

[0032] Continue to refer to Figure 2 and Figure 3 As shown, the lifting device 500 provided in this embodiment is a mechanical lifting device 500. The mobile platform also includes a handwheel 600, which is rotatably connected to the support frame 210. The handwheel 600 is used to drive the lifting device 500 to rise or fall. When it is necessary to lift the work platform assembly 100, the lifting device 500 can be raised or lowered by rotating the handwheel 600. It should be understood that the lifting device 500 at this time can be a screw-type lifting device 500. The rotation on the handwheel 600 can be converted into the rotation of the nut on the screw through a gear assembly. The nut is rotatably connected to the support frame 210, and the screw can be raised or lowered during the rotation of the nut. The above-mentioned method of the handwheel 600 driving the screw to rotate is a common driving method, which will not be described in detail in this embodiment.

[0033] Continue to refer to Figure 2 , Figure 3 and Figure 4As shown, the work platform assembly 100 provided in this embodiment includes a support platform 110, a guardrail gate, and a protective railing (first protective railing 140). When using the work platform assembly 100, the worker stands on the support platform 110, the aforementioned support surface being the plane of the support platform 110 facing away from the support assembly 200. When the work platform assembly 100 is engaged with the lifting device 500, the support platform 110 and the lifting device 500 are fixedly connected. This allows the lifting device 500 to drive the support platform 110 to rise and fall when the work platform assembly 100 is raised or lowered. When the work platform assembly 100 is engaged with the inclined ladder 300, the support platform 110 and the inclined ladder 300 are hinged to provide stable support for the inclined ladder 300.

[0034] In the specific installation of the first protective railing 140 and the guardrail gate, there are two guardrail gates, which are named first guardrail gate 130 and second guardrail gate 150 for ease of description. The first guardrail gate 130 and the second guardrail gate 150 are positioned opposite each other at opposite ends of the horizontal direction of the support platform 110. Specifically, the first guardrail gate 130 is located on the side of the support platform 110 closer to the inclined ladder 300, while the second guardrail gate 150 is located on the side of the support platform 110 away from the inclined ladder 300. In actual use, the end of the support platform 110 away from the inclined ladder 300 is closer to the wind turbine nacelle hub. The specific usage process is as follows: first, the second guardrail gate 150 is opened, allowing the mobile platform to move closer to and fix to the wind turbine nacelle hub. Then, the first guardrail gate 130 is opened, allowing workers to climb onto the support platform 110 from the inclined ladder 300. Afterwards, the first guardrail gate 130 is closed, thus forming a protective barrier.

[0035] When the first guardrail 140 is installed, it is located on the other two opposite sides of the support platform 110. When the first guardrail gate 130 and the second guardrail gate 150 are closed, the two guardrail gates and the two first guardrails 140 form a frame-shaped protective structure above the support platform 110. It should be understood that the first guardrail gate 130 and the second guardrail gate 150 can be hinged to the first guardrail 140 respectively. For example, the first guardrail gate 130 includes two opposing guardrails, each of which is hinged to one of the two first guardrails 140 respectively. Similarly, the second guardrail gate 150 is installed in the same manner.

[0036] Continue to refer to Figure 2 As shown, when the first guardrail 140 is specifically installed, a side plate 160 is provided on the support platform 110, and the first guardrail 140 is fixed to the side plate 160. When this structure is adopted, the side plate 160 forms a certain closed height above the support platform 110 to reduce the possibility of tools falling from the workers.

[0037] Continue to refer to Figure 5 As shown, the work platform component 100 provided in this embodiment of the application also includes a docking platform 120, which is used to abut against the wind turbine nacelle hub to form a seamless connection between the mobile platform and the wind turbine nacelle hub. Specifically, the docking platform 120 is hinged to the support platform 110 on the side opposite to the inclined support ladder 300. It should be understood that the rotation angle of the docking platform 120 and the support platform 110 when hinged is within a certain range, so that the docking platform 120 can also provide movable support when abutting against the wind turbine nacelle hub.

[0038] In one specific implementation scheme, the docking platform 120 is provided with an elastic protective body 121 on the side away from the support platform 110. The elastic deformation of the elastic protective body 121 ensures that there is no gap between the mobile platform and the wind turbine nacelle hub when they are fixedly connected, and can absorb differences during assembly.

[0039] When the mobile platform is fixedly connected to the wind turbine nacelle hub, the mobile platform also includes a connecting assembly. This connecting assembly includes a first connecting assembly 900 fixedly connected to the second guardrail 340 gate 150, and a second connecting assembly 800 fixedly connected to the support assembly 200. In a specific configuration, when the mobile platform is fixedly connected to the wind turbine nacelle hub, the first connecting assembly 900 and the second connecting assembly 800 are respectively connected and fixed to the wind turbine nacelle hub to ensure that the support assembly 200 and the support platform 110 can be fixed to the wind turbine nacelle hub, thus ensuring the stability of the entire mobile platform.

[0040] When the first connecting component 900 and the second connecting component 800 are fixed to the wind turbine nacelle hub, they can be fixed by threaded connectors (such as bolts or bolt assemblies).

[0041] Continue to refer to Figure 2As shown, the inclined ladder 300 provided in this embodiment includes multiple steps 320 and two inclined support assemblies 310 located on both sides of the multiple steps 320. Each inclined support assembly 310 includes a first support rod 311 and a second support rod 312, which are respectively hinged to the work platform assembly 100. Specifically, the first support rod 311 and the second support rod 312 are respectively hinged to the support platform 110, and the other end of the first support rod 311 and the second support rod 312 are also respectively hinged to a crossbar, thus forming a parallelogram structure. When multiple steps 320 are provided, the multiple steps 320 are arranged at intervals along the height direction of the first support rod 311 to facilitate workers stepping on them. In addition, one end of each step 320 is respectively hinged to the first support rod 311 and the second support rod 312 on the corresponding side. This design ensures that when the angle between the inclined support ladder 300 and the vertical direction changes, the steps 320 can also change accordingly, thereby guaranteeing that the steps 320 of the inclined support ladder 300 can all be perpendicular to the vertical direction, making it convenient for workers to climb.

[0042] In one feasible embodiment, the end of the inclined ladder 300 away from the work platform assembly 100 is provided with a second roller 330 so that the inclined ladder 300 can also move along with the moving platform when it moves.

[0043] In one feasible embodiment, a guardrail (second guardrail 340) may also be provided on the bracing assembly 310 to improve the safety of workers when going up or down the bracing ladder 300.

[0044] When the diagonal brace 400 provided in this embodiment is an adjustable-length diagonal brace, it can be adjusted via threads. For example, the diagonal brace includes two threaded rods with opposite threads and a threaded sleeve located between the two threaded rods, with the two threaded rods threadedly connected to the threaded sleeve. The two threaded rods are respectively hinged to the diagonal brace ladder 300 and the support assembly 200, and adjustment can be made by rotating the threaded sleeve when needed. Of course, in addition to the above-described example, other manually adjustable diagonal braces 400 can also be used.

[0045] Please refer to the above. Figure 6 and Figure 7 , Figure 6 and Figure 7 A schematic diagram of the lifting and lowering process of the mobile platform is shown. Figure 6 and Figure 7The bidirectional arrows shown indicate the direction of lifting and lowering the mobile platform. When using the mobile platform and needing to raise the height of the work platform assembly 100, turn the handwheel 600. Through the lifting device 500 installed on the support assembly 200, the rotational motion of the handwheel 600 is converted into linear motion of the work platform assembly 100. The work platform assembly 100 moves upward along the guide device, adjusting the work platform assembly 100 to the required height. At this time, the inclined support ladder 300, which is hinged to the work platform assembly 100, swings downward under the action of gravity, driving the pedal 320 on it to move together. The length of the inclined support rod 400 shortens. The inclined support rod 400 is a manually locked telescopic device. At this time, locking the inclined support rod 400 completes the raising operation of the mobile platform. The mobile platform is pushed so that the docking platform 120 on it contacts the wind turbine nacelle hub through the elastic protective body 121; the first connecting component 900 and the second connecting component 800 are rigidly connected to the wind turbine nacelle hub through fasteners; the rear guardrail, docking platform 120, first connecting component 900 and wind turbine nacelle hub form a safety guardrail, providing safety protection in the transition area between the mobile platform and the wind turbine nacelle hub.

[0046] One or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification should be included within the scope of protection of this disclosure.

[0047] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A mobile platform, characterized in that, It includes a support assembly, a lifting device, and a work platform assembly; the lifting device is disposed on the support assembly and drives the work platform assembly to move up and down; it also includes a diagonal bracing ladder and diagonal bracing rods; one end of the diagonal bracing ladder is hinged to the work platform assembly; The diagonal brace is an adjustable length diagonal brace, with its first end hinged to the diagonal bracing ladder and its second end hinged to the support assembly.

2. The mobile platform according to claim 1, characterized in that, It also includes a guiding device, which includes multiple guide posts, one end of each guide post being fixedly connected to the work platform assembly, and the other end of each guide post being slidably connected to the support assembly.

3. The mobile platform according to claim 1, characterized in that, The support assembly includes a support frame and a first roller disposed on the support frame; the lifting device is disposed on the support frame, one end of the inclined ladder is hinged to the support frame; and the second end of the inclined strut is hinged to the support frame.

4. The mobile platform according to claim 3, characterized in that, It also includes a handwheel that is rotatably connected to the support frame, the handwheel being used to drive the lifting device to move up and down.

5. The mobile platform according to claim 1, characterized in that, The inclined ladder includes multiple steps and two inclined support assemblies located on both sides of the multiple steps. Each inclined support assembly includes a first support rod and a second support rod, and the first support rod and the second support rod are respectively hinged to the work platform assembly. One end of each step is respectively hinged to the first support rod and the second support rod on the corresponding side.

6. The mobile platform according to claim 5, characterized in that, The inclined ladder is provided with a second roller at the end away from the work platform assembly.

7. The mobile platform according to any one of claims 1 to 6, characterized in that, The work platform assembly includes a support platform, which is fixedly connected to the lifting device and hinged to the inclined ladder. It also includes a first guardrail gate located on the side of the support platform near the inclined ladder, and a second guardrail gate located on the side away from the inclined ladder; it also includes guardrails located on the other two opposite sides of the support platform.

8. The mobile platform according to claim 7, characterized in that, The working platform assembly also includes a docking platform for contacting the wind turbine nacelle hub, the docking platform being hinged to the side of the support platform away from the inclined strut ladder.

9. The mobile platform according to claim 8, characterized in that, The docking platform is provided with an elastic protective body on the side away from the supporting platform.

10. The mobile platform according to claim 7, characterized in that, It also includes a connecting component, which includes a first connecting component fixedly connected to the second guardrail gate and a second connecting component fixedly connected to the support component.

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