Tracked transfer vehicle for transporting blade beams

Abstract

This application discloses a tracked transfer vehicle for transporting blade beams, belonging to the field of blade beam transportation technology. It mainly includes a loading vehicle body; a tracked walking assembly, which includes protective covers symmetrically arranged on both sides of the loading vehicle body. Inside the protective covers are installed a motor, drive wheels, guide wheels, and the track body. The motor drives the drive wheels through a sprocket meshing with a chain inside the track body. The guide wheels are connected to the inner wall of the protective cover via tension springs for adjusting the tension of the track body; and a docking assembly, located inside the loading vehicle body, for connecting to the rack docking section. The tracked transfer vehicle for transporting blade beams of this application, with its large track contact area and strong grip, combined with dynamic tension adjustment of the tension springs, can buffer the impact of bumps, reduce the risk of blade beam displacement due to vibration, and avoid structural damage caused by uneven local stress. Its toothed chain has better engagement ability than rotating wheels in extreme icy and snowy weather, reducing the probability of slippage and ensuring stable driving on low-friction surfaces.

Description

Technical Field

[0001] This application relates to the field of blade beam transportation technology, specifically to a tracked transfer vehicle for transporting blade beams. Background Technology

[0002] In the current booming wind power industry, wind turbine blades, as core components, are crucial in their production, manufacturing, and transportation. The blade spars, as a key load-bearing structure, play a decisive role in the overall performance and stability of the blade. With the continuous expansion of wind farms and the sustained increase in single-unit capacity, blade sizes are becoming increasingly larger, and the weight and length of the blade spars are also significantly increasing, posing certain challenges to their transportation.

[0003] In past practices of transporting blade beams, conventional AGV differential vehicles have been widely used in this field. These AGV differential vehicles primarily rely on four sets of rotating wheels for movement. However, in actual blade beam transportation, because their operating principle is based on the rolling of these wheels, when the vehicle encounters vibrations on bumpy roads, the blade beams are prone to displacement during transport. This is because the rotating wheels cannot effectively buffer and balance external impact forces, making it difficult for the blade beams to maintain stability. Furthermore, under long-term or extreme stress conditions, the blade beams may also suffer internal structural damage due to uneven local stress.

[0004] Meanwhile, in extreme icy and snowy weather conditions, the rotating wheels of the AGV differential vehicle experience slippage due to reduced friction with the ground, making it difficult for the vehicle to maintain stable driving or even preventing it from moving forward, leading to transportation interruptions. In such cases, forklifts are required for transfer, increasing transportation costs and operational complexity. Therefore, it is necessary to provide a tracked transfer vehicle for transporting blade beams to solve the above problems.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0006] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a tracked transfer vehicle for transporting blade beams, which solves the problem that conventional AGV differential vehicles used for transporting blade beams will have a certain impact on the transport of blade beams under complex road conditions and extreme weather.

[0007] The technical solution adopted by this application to solve its technical problem is: a tracked transfer vehicle for transporting blade beams, including a loading vehicle body; a tracked walking assembly, which includes protective covers symmetrically arranged on both sides of the loading vehicle body, wherein an electric motor, a drive wheel, a guide wheel and a track body are installed inside the protective cover, the electric motor drives the drive wheel to engage with the inner chain of the track body through a sprocket, the guide wheel is connected to the inner wall of the protective cover through a tension spring for adjusting the tension of the track body, and a docking assembly, wherein the docking assembly is located inside the loading vehicle body for connecting the rack docking part.

[0008] Furthermore, the docking assembly includes a docking groove formed on the upper surface of the loading vehicle body. A linear motor is provided inside the loading vehicle body, and a locking pin is provided at the telescopic end of the linear motor. The end of the locking pin passes through the docking groove and is locked and connected to the docking part of the shelf.

[0009] Furthermore, a fixing cover is installed on one side of the inner wall of the protective cover, and a fixing plate is installed between the fixing cover and the protective cover. The tension spring is installed on the fixing plate, and a fixing frame is installed on the tension spring. The fixing frame has two sets of protrusions, and the guide wheel bearing is installed between the two sets of protrusions. Four sets of limiting parts are installed on both sides of the inner wall of the protective cover, and the two sets of protrusions are located between the two sets of limiting parts that are vertically arranged.

[0010] Furthermore, the protective cover is provided with multiple sets of track rollers, which contact the lower end of the inner wall of the track body.

[0011] Furthermore, a clearance is provided between the track body and the protective cover.

[0012] Furthermore, the track body is a steel track coated with rubber.

[0013] Furthermore, the loading vehicle is equipped with a PLC control system, which is electrically connected to the electric motor.

[0014] The beneficial effects of this application are as follows: The tracked transfer vehicle for transporting blade beams provided by this application, through the large contact area between the steel rubber-coated track body and the ground and the strong grip, combined with the dynamic tension adjustment mechanism of the guide wheel and tension spring, can effectively buffer the impact of bumpy roads, reduce the risk of displacement of blade beams due to vibration during transportation, and avoid structural damage caused by uneven local stress; in extreme icy and snowy weather, the toothed chain of the track has a significantly better gripping ability with the ground than the rotating wheel, reducing the probability of slippage and ensuring that the vehicle can still drive stably on low friction coefficient roads, avoiding transportation interruption and the additional costs of forklift transfer.

[0015] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0017] In the attached diagram:

[0018] Figure 1 This is an overall schematic diagram of the tracked transfer vehicle used for transporting blade beams in this application;

[0019] Figure 2 for Figure 1 A schematic diagram of the bottom structure;

[0020] Figure 3 for Figure 2 A partial structural diagram;

[0021] Figure 4 for Figure 3 A partial structural diagram;

[0022] Figure 5 for Figure 4 Enlarged view of point A;

[0023] The following are the labeling elements in the figure:

[0024] 1. Loading assembly; 11. Loading vehicle body; 12. Protective cover; 14. Mounting cover; 15. Docking groove; 2. Track travel assembly; 21. Electric motor; 22. Drive wheel; 23. Track body; 24. Chain; 25. Fixing cover; 26. Track roller; 27. Fixing plate; 28. Tension spring; 29. ​​Fixing frame; 210. Limiting part; 211. Guide wheel; 3. Docking assembly; 31. Linear motor; 32. Locking pin. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application.

[0027] like Figures 1-5As shown, this application provides a tracked transfer vehicle for transporting blade beams, including a loading assembly 1. The loading assembly 1 includes a loading vehicle body 11, on which a dedicated loading platform is provided. In actual transportation scenarios, the blade beams are not placed directly on the loading platform, but rather on a rack supporting the blade beams. The function of the loading platform is to provide stable support to the racks that support the blade beams.

[0028] The vehicle body 11 has protective covers 12 on both sides. On the side of the two sets of protective covers 12 that are close to each other, a mounting cover 14 is fixedly installed. The bottom surface of the protective cover 12 is open. A tracked walking assembly 2 is provided inside the protective cover 12. The tracked walking assembly 2 includes a motor 21 fixedly installed inside the mounting cover 14. The output end of the motor 21 passes through the protective cover 12. A drive wheel 22 is fixedly installed at the output end of the motor 21. The drive wheel 22 is adapted to rotate with the output end of the motor 21.

[0029] A fixed cover 25 is fixedly installed on one side of the inner wall of the protective cover 12, and a fixed plate 27 is fixedly installed between the fixed cover 25 and the protective cover 12. A tension spring 28 is fixedly installed on the side of the fixed plate 27 away from the drive wheel 22, and the tension spring 28 away from the fixed plate 27 is adapted to be compressed so as to drive the guide column to move on the fixed plate 27.

[0030] A fixing frame 29 is fixedly installed on the end of the tension spring 28 away from the fixing plate 27. The fixing frame 29 has two sets of protrusions, and a guide wheel 211 is mounted between the two sets of protrusions. Four sets of limiting parts 210 are fixedly installed on both sides of the inner wall of the protective cover 12. The two sets of protrusions are located between the two sets of limiting parts 210 arranged vertically. At the same time, a track body 23 is connected between the guide wheel 211 and the drive wheel 22. The track body 23 is a steel rubber-coated track. The inner side of the track body 23 has a chain 24. At the same time, sprockets (not shown in the figure) adapted to the chain 24 are provided on the guide wheel 211 and the drive wheel 22.

[0031] Meanwhile, multiple sets of track rollers 26 are installed inside the protective cover 12. These track rollers 26 contact the lower end of the inner wall of the track body 23. The track rollers 26 assist the guide wheels 211 and the drive wheels 22 in guiding the track to operate smoothly. When the vehicle turns, climbs hills, or traverses rough terrain, the track movement is complex and variable. The track rollers can adjust the position and tension of the track in a timely manner to ensure smooth track operation, avoid abnormal situations such as jamming or twisting, and ensure the stability of the vehicle's power transmission.

[0032] It should be noted that the track body 23 has a certain vertical distance from the bottom surface of the protective cover 12, so that the track body 23 is suitable for contact with the ground, and the track body 23 is a steel rubber-coated track.

[0033] In current blade beam transportation scenarios, weather conditions place certain demands on the performance and stability of transport vehicles. Against this backdrop, the protective structures on both sides of the loading body 11 and the tracked running structure of the tracked transfer vehicle for blade beam transportation described in this application play a crucial role.

[0034] The protective covers 12 are installed on both sides of the loading vehicle body 11. They not only protect the internal tracked walking components 2 from damage caused by collisions with foreign objects under complex working conditions, but also ensure the safety of surrounding personnel to a certain extent. The open design on the bottom surface does not affect the contact between the tracked walking components 2 and the ground and their normal operation, and also facilitates daily maintenance and cleaning of the components.

[0035] The tracked walking assembly 2 operates based on the power output of the electric motor 21. The electric motor 21 is fixed inside the mounting cover 14, which is securely connected to the adjacent sides of two sets of protective covers 12. This structural design ensures the stability of the electric motor 21 during operation. When the electric motor 21 is energized, its output end rotates at high speed, driving the drive wheel 22, which is fixedly mounted at the output end, to rotate synchronously. The sprocket on the drive wheel 22 meshes tightly with the chain 24 inside the track body 23, thereby converting the rotational power of the electric motor 21 into the linear motion of the track body 23, driving the vehicle forward or backward.

[0036] During track operation, the guide wheel 211 plays a crucial guiding and tensioning role. The guide wheel 211 is mounted on one end of the tension spring 28 via a mounting bracket 29. The tension spring 28 is fixed to a mounting plate 27, which is installed between the mounting cover 25 and the protective cover 12. When the track body 23 becomes slack during operation, the tension spring 28 will be compressed or stretched. For example, during prolonged operation or when the track lengthens due to road impacts, the tension spring 28 is compressed, and its elastic force pushes the guide post to move on the mounting plate 27. This, in turn, causes the mounting bracket 29 and the guide wheel 211 to move away from the drive wheel 22, ensuring the track body 23 maintains appropriate tension, preventing track derailment or slippage, and ensuring stable vehicle operation under complex road conditions. Simultaneously, the guide wheel 211 can flexibly adjust its angle according to the vehicle's steering requirements, supported by the mounting bracket 29, assisting the vehicle in achieving smooth steering and improving its maneuverability in narrow spaces or complex road conditions.

[0037] In this application, the loading vehicle body 11 is equipped with a PLC control system, which is used to precisely regulate the operation of the vehicle's drive equipment to ensure its stable and efficient operation in order to meet the needs of various complex transportation operations.

[0038] It should be noted that when the vehicle needs to turn right, the PLC control system reduces the speed of the right track motor 21, slowing down the right track's running speed, while the left track maintains its original speed. Due to the difference in speed between the two tracks, the vehicle will rotate to the right around the left track, achieving the steering action. In this process, although the guide wheel 211 does not directly determine the steering angle, it can flexibly adjust its angle according to the track's movement trend, always maintaining correct guidance for the track's movement direction, preventing abnormal situations such as track derailment during steering, and ensuring the smoothness and safety of vehicle steering.

[0039] A docking assembly 3 is provided inside the loading vehicle body 11. The docking assembly 3 includes a docking groove 15 formed on the upper surface of the loading vehicle body 11. Meanwhile, the rack that carries the blade beam in the prior art has a docking part. The docking part is adapted to be inserted into the docking groove 15 in a horizontal manner. The width of the docking groove 15 is the same as the width of the docking part. The docking assembly 3 includes a linear motor 31 fixedly installed in the loading vehicle body 11. The telescopic end of the linear motor 31 has a locking pin 32. The locking pin 32 is adapted to move with the telescopic end of the linear motor 31 to penetrate the docking groove 15 and be inserted into the docking part, thereby fixing the rack that carries the blade beam.

[0040] When transport operations are ready, workers move the rack supporting the blade beams to the vicinity of the loading vehicle 11. Because the racks supporting the blade beams in existing technology have a connecting part, and the upper surface of the loading vehicle 11 has a matching connecting groove 15, workers only need to precisely insert the connecting part of the rack horizontally into the connecting groove 15. Compared to the traditional method of simply placing the rack, this design greatly improves the initial stability of the connection between the rack and the loading vehicle 11, reducing safety hazards caused by rack displacement during subsequent operations.

[0041] After the rack docking part is inserted into the docking slot 15, the docking assembly 3 inside the loading vehicle body 11 is activated. The core of the docking assembly 3 is a linear motor 31 fixedly installed inside the loading vehicle body 11. As a power source, the linear motor 31 has the advantages of fast response speed and high precision compared to the traditional combination of motors and complex mechanical transmissions. When the linear motor 31 receives a start signal, its telescopic end begins to move, driving the locking pin 32 connected to it to move together. As the telescopic end of the linear motor 31 advances, the locking pin 32 gradually penetrates the docking slot 15 until it is inserted into the rack docking part. Through the tight insertion of the locking pin 32 into the docking part, the rack is firmly fixed to the loading vehicle body 11.

[0042] In summary: The loading vehicle body 11 of the loading component 1 is equipped with a dedicated loading platform. Due to the irregular shape and long size of the blade beam, the blade beam is placed by a support rack and fixed by the rack structure, which improves the stability and safety of transportation and avoids the risk of displacement and falling that is easy to occur with traditional simple placement.

[0043] Protective covers 12 on both sides of the vehicle body 11 protect the tracked walking assembly 2 from collisions with external foreign objects, ensuring the safety of surrounding personnel. The bottom opening design does not obstruct the assembly's contact with the ground and its operation, facilitating maintenance and cleaning. In the tracked walking assembly 2, the motor 21 is fixed inside the mounting cover 14. When running, its output end drives the drive wheel 22 to rotate synchronously. The drive wheel 22 engages with the chain 24 inside the track body 23 through a sprocket, converting the rotational power into linear motion of the track, driving the vehicle forward or backward. The steel rubber-coated track contacts the ground, making it more adaptable to complex road conditions compared to traditional wheels, providing better grip and stability.

[0044] The guide wheel 211 is mounted on one end of the tension spring 28 via the fixing frame 29. When the track becomes slack during operation, the tension spring 28 is compressed or stretched, pushing the guide column to move and causing the guide wheel 211 to adjust its position, maintaining appropriate track tension, preventing derailment or slippage, and ensuring stable vehicle operation in complex road conditions. Simultaneously, the guide wheel 211 can flexibly adjust its angle according to the vehicle's steering requirements, supported by the fixing frame 29, assisting in smooth vehicle steering and improving maneuverability. Vehicle steering is achieved by adjusting the speed difference of the two track motors 21 through the control system. The guide wheel 211 adjusts its angle according to the track's movement trend, ensuring smooth and safe steering, and solving problems such as blade beam displacement caused by structural limitations in traditional AGV differential vehicles during steering.

[0045] The docking groove 15 on the upper surface of the loading vehicle body 11 is adapted to the docking part of the load-bearing blade beam rack. The worker inserts the rack docking part horizontally into the docking groove 15 to improve the initial stability of the connection and reduce the risk of subsequent rack position displacement. After insertion, the docking component 3 inside the loading vehicle body 11 is activated. The linear motor 31, as the core, has a fast response speed and high precision. Its telescopic end drives the locking column 32 to penetrate the docking groove 15 and insert into the rack docking part, firmly fixing the rack and preventing the rack from shifting and falling due to vehicle bumps and turns during transportation. In addition, the loading component 1 is equipped with a PLC control system to regulate the operation of the vehicle drive equipment and ensure stable and efficient operation.

[0046] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A track transporter for transporting blade beams, characterized in that: include: Loading vehicle body (11); Tracked walking assembly (2) is provided on both sides of the loading vehicle body (11) and is used to drive the loading vehicle body (11) to move. The tracked walking assembly (2) includes protective covers (12) symmetrically arranged on both sides of the loading vehicle body (11). The protective cover (12) is equipped with an electric motor (21), a drive wheel (22), a guide wheel (211) and a track body (23). The electric motor (21) drives the drive wheel (22) to mesh with the chain (24) inside the track body (23) through a sprocket. The guide wheel (211) is connected to the inner wall of the protective cover (12) through a tension spring (28) and is used to adjust the tension of the track body (23). The docking component (3) is located inside the loading vehicle body (11) and is used to connect the rack docking part.

2. The blade beam transport caterpillar transporter according to claim 1, characterized in that: The docking assembly (3) includes a docking groove (15) formed on the upper surface of the loading vehicle body (11). A linear motor (31) is provided inside the loading vehicle body (11). The telescopic end of the linear motor (31) is provided with a locking pin (32). The end of the locking pin (32) passes through the docking groove (15) and is locked to the docking part of the shelf.

3. The blade beam transport caterpillar transporter of claim 1, wherein: A fixing cover (25) is installed on one side of the inner wall of the protective cover (12). A fixing plate (27) is installed between the fixing cover (25) and the protective cover (12). The tension spring (28) is installed on the fixing plate (27). A fixing frame (29) is installed on the tension spring (28). The fixing frame (29) has two sets of protrusions. The guide wheel (211) bearing is installed between the two sets of protrusions. Four sets of limiting parts (210) are installed on both sides of the inner wall of the protective cover (12). The two sets of protrusions are located between the two sets of limiting parts (210) set vertically.

4. The blade beam transport caterpillar transporter according to claim 3, characterized in that: The protective cover (12) is provided with multiple sets of track rollers (26), and the track rollers (26) are in contact with the lower end of the inner wall of the track body (23).

5. The blade beam transport caterpillar transporter according to claim 4, characterized in that: A clearance is provided between the track body (23) and the protective cover (12).

6. The blade beam transport caterpillar transporter of claim 4, wherein: The track body (23) is a steel rubber-coated track.

7. The blade beam transport caterpillar transporter according to claim 6, characterized in that: The loading vehicle body (11) is equipped with a PLC control system, which is electrically connected to the motor (21).

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