Hoisting turnover device and hoisting system

Abstract

The invention relates to the technical field of hoisting equipment, and discloses a hoisting turnover device and a hoisting system. The hoisting turnover device comprises a mounting beam, a turnover frame, a first telescopic driving piece and a second telescopic driving piece. One end of a first turnover connecting piece of the turnover frame is connected with the mounting beam through a first connecting shaft, and the other end of the first turnover connecting piece is connected with a crane through a second connecting shaft; the two ends of an overturning supporting piece of the overturning frame are connected with the other end of the first overturning connecting piece and one end of a first telescopic driving piece correspondingly. The other end of the first telescopic driving part is connected with the mounting beam, so that the overturning frame drives the crane to rotate by taking the first connecting shaft as a rotating shaft; the two ends of the second telescopic driving piece are connected with the overturning frame and the crane correspondingly, so that the crane rotates with the second connecting shaft as a rotating shaft. The problem that alignment is difficult and time-consuming in the overturning process of a self-lifting scheme in the prior art is solved, it is ensured that the crane can be accurately aligned and installed in the overturning process, and the installation efficiency is improved.

Description

Lifting and Tilting Device and Lifting System Technical Field

[0001] This invention relates to the field of hoisting equipment technology, and in particular to a hoisting tilting device and hoisting system. Background Technology

[0002] Wind turbines, as clean energy devices that convert wind energy into mechanical energy and generate electricity through rotor rotation, play a crucial role in the global energy transition. With the continuous growth of global wind power installed capacity and the accumulating service life of the units, the need to replace key components such as generators, gearboxes, and blades is becoming increasingly prominent. Currently, the industry mainly adopts two solutions: traditional hoisting methods and self-lifting hoisting methods. Both methods require first installing a tower crane at the top of the tower nacelle, and then using the tower crane to complete the hoisting operation of key components.

[0003] Traditional hoisting methods typically rely on large auxiliary hoisting equipment. Specifically, conventional onshore wind turbines require large truck cranes, large-megawatt tower turbines require heavy-duty crawler cranes, and offshore wind power must use specialized equipment such as outrigger vessels. These large pieces of equipment are not only expensive to rent, but also limited in number and their availability is difficult to guarantee. More importantly, wind farms are often located in remote areas such as mountains, deserts, and coastlines, where complex transportation conditions make transporting large equipment difficult and costly. Furthermore, the frequent strong gusts and extreme temperature variations in these areas pose significant challenges to construction safety.

[0004] In contrast, the self-lifting hoisting method uses winches and wire ropes to lift the tower crane from the ground to the top nacelle in a "head-down" position, and then uses a tilting device to install the tower crane in the top nacelle, which overcomes the shortcomings of the traditional method to some extent. However, the existing self-lifting method suffers from difficulties in alignment and is time-consuming during the tilting process. Summary of the Invention

[0005] This invention provides a hoisting and tilting device and hoisting system to solve the problem of difficult and time-consuming alignment during the tilting process in the existing self-lifting scheme, ensuring that the crane can be accurately aligned and installed during the tilting process, thereby improving installation efficiency.

[0006] The first aspect of the present invention provides a hoisting and tilting device, comprising: a mounting frame including two mounting beams, the two mounting beams being arranged at intervals along their own width direction; the mounting beams being used for installation to a tower top nacelle; two tilting components, arranged at intervals along the width direction and corresponding one-to-one with the two mounting beams; each tilting component comprising: a tilting frame including a first tilting connector and a tilting support; one end of the first tilting connector being connected to the mounting beam via a first connecting shaft, and the other end being connected to a crane via a second connecting shaft; one end of the tilting support being connected to the first tilting connector, and the other end extending away from the first tilting connector; a first telescopic drive member, one end of the first telescopic drive member being connected to the other end of the tilting support member, and the other end being connected to the mounting beam, causing the tilting frame to drive the crane to rotate about the first connecting shaft as a pivot; and a second telescopic drive member, one end of the second telescopic drive member being connected to the tilting frame, and the other end extending along the length direction of the mounting beam and being used to connect to the crane, causing the crane to rotate about the second connecting shaft as a pivot.

[0007] According to the hoisting and tilting device provided by the present invention, the tilting frame further includes: a second tilting connector, one end of the second tilting connector being connected to the other end of the first tilting connector via a second connecting shaft, and the other end being used to connect to the first hoist lug of the hoist.

[0008] According to the hoisting and tilting device provided by the present invention, the tilting frame further includes: a third tilting connector, which is spaced apart on one side of the second tilting connector; one end of the third tilting connector is used to connect with the second hoist lug of the hoist, and the other end is connected to the mounting beam through the second mounting lug provided on the mounting beam.

[0009] According to the hoisting and tilting device provided by the present invention, one side of the third tilting connector is connected to the second tilting connector via a second connector; the other end of the second telescopic drive member is connected to the third tilting connector.

[0010] According to the hoisting and tilting device provided by the present invention, the two third tilting connectors are connected by a first connector; the other end of each of the second telescopic drive members is connected to the first connector.

[0011] According to the hoisting and tilting device provided by the present invention, the mounting frame further includes: two side beams, corresponding one-to-one with two mounting beams; the side beams are located outside the mounting beams, one end of the side beams is connected to the mounting beams, and the other end extends along the length direction of the mounting beams; the other end of the first telescopic drive member is connected to the side beams.

[0012] According to the hoisting and tilting device provided by the present invention, a first mounting lug and a second mounting lug are provided on the mounting beam; a third mounting lug is provided on the side beam; the second mounting lug, the first mounting lug, and the third mounting lug are arranged sequentially at intervals along the length direction of the mounting beam; one end of the first mounting lug is connected to one end of the first tilting connector through the first connecting shaft; the second mounting lug is used to connect to the second crane lug of the crane; and the third mounting lug is connected to the other end of the first telescopic drive member.

[0013] According to the hoisting and tilting device provided by the present invention, a limiting block is installed at the end of the mounting beam; the side of the limiting block facing the first tilting connector is used to abut against the first tilting connector.

[0014] A second aspect of the present invention provides a hoisting system, including a crane and a hoisting tilting device as described in any of the preceding claims; the hoisting tilting device is connected to the crane.

[0015] According to the hoisting system provided by the present invention, the hoist includes: a base cylinder, a guide member is provided on the bottom plate of the base cylinder, one end of the guide member is located in the installation gap of the first hoist lug of the hoist, and the other end extends toward the second hoist lug of the hoist; the guide member is slidably engaged with the other end of the second flip-over connector.

[0016] The hoisting and tilting device provided by this invention does not directly tilt the crane after it is lifted close to the tilting component. Instead, it first connects to specific parts of the crane via a first tilting connector and a second telescopic drive component. This connection process transforms the originally freely swaying crane into a component connected to the mounting frame, reducing the degree of freedom in subsequent operations. After the connection is completed, the second telescopic drive component starts working, driving the crane to rotate around the second connecting shaft. This is a single-degree-of-freedom rotational motion with a unique and definite trajectory. The purpose of this action is not to complete the final tilting, but to precisely lift the crane from the "first position" (suspended outside the tower) to the "second position" (where the mounting shaft and base are placed on the mounting beam). This process solves the alignment problem from free suspension to initial positioning. When the crane is in the "second position," the first telescopic drive component starts working, driving the entire tilting frame (now integrated with the crane) to rotate around the first connecting shaft. This is also a single-degree-of-freedom rotational motion, with its rotation axis fixed to the mounting frame. Because the crane is now part of a rigid connection, this tilting action is very smooth and sway-free. When the first telescopic drive component extends to the predetermined length, the tilting action stops. At this point, the crane's posture (from "head down, feet up" to "head up, feet down") and position (perfectly situated at the predetermined installation point on the mounting beam) are precisely defined by the mechanical structure itself. It does not rely on the operator's visual inspection or intuition, ensuring that the crane lands in its final installation position after tilting, achieving precise alignment and installation. This two-step tilting process—first capturing, then tilting—decomposes the complex alignment process into two deterministic, single-step mechanical actions, eliminating the time spent on repeated alignment, adjustment, and waiting, and shortening the entire work window. Therefore, this embodiment solves the problem of difficult and time-consuming alignment during the tilting process in existing self-lifting schemes, ensuring precise alignment and installation of the crane during tilting, and improving installation efficiency.

[0017] The hoisting system provided by the present invention has at least the aforementioned advantages because it includes the hoisting and tilting device described above. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 is one of the structural schematic diagrams of the hoisting and tilting device provided by the present invention.

[0020] Figure 2 is a second schematic diagram of the hoisting and tilting device provided by the present invention.

[0021] Figure 3 is the third structural schematic diagram of the hoisting and tilting device provided by the present invention.

[0022] Figure 4 is one of the structural schematic diagrams of the hoisting system provided by the present invention.

[0023] Figure 5 is a structural schematic diagram of the crane of the hoisting system provided by the present invention.

[0024] Figure 6 is a second structural schematic diagram of the hoisting system provided by the present invention.

[0025] Figure 7 is the third structural schematic diagram of the hoisting system provided by the present invention.

[0026] Figure 8 is the fourth structural schematic diagram of the hoisting system provided by the present invention.

[0027] Figure 9 is the fifth structural schematic diagram of the hoisting system provided by the present invention.

[0028] Figure 10 is the sixth structural schematic diagram of the hoisting system provided by the present invention.

[0029] Reference numerals: 111, Mounting beam; 112, Limiting block; 113, Side beam; 114, Crossbeam support; 101, First mounting lug; 102, Second mounting lug; 103, Third mounting lug; 121, Tilting frame; 122, First telescopic drive component; 123, Second telescopic drive component; 1211, First tilting connector; 1212, Tilting support component; 1213, Second tilting connector; 1214, Third tilting connector; 1215, First support connector; 1216. Second support connector; 131. First connector; 132. Second connector; 133. Third connector; 134. Fourth connector; 135. Fifth connector; 136. Sixth connector; 210. Base cylinder; 220. Hook; 230. Boom; 240. Support frame; 250. Pitch cylinder; 211. First crane lug; 212. Second crane lug; 213. Guide component; 300. Lifting beam; 400. Wire rope; 500. Auxiliary crane. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0031] In the description of this specification, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing this specification. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this specification. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this specification, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this invention based on the specific circumstances.

[0033] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this specification. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0035] In the embodiments of this specification, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0036] As shown in Figures 1 to 3, a specific embodiment of the first aspect of the present invention provides a hoisting and tilting device. The hoisting and tilting device includes a mounting frame and two tilting components.

[0037] The mounting frame includes two mounting beams 111, which are spaced apart along their width. The mounting beams 111 are used for mounting to the tower top nacelle. In other words, two mounting beams 111 are installed at intervals along the width of the mounting beams 111 on the tower top nacelle. The mounting beams 111 not only provide a stable and reliable mounting foundation for the entire device, but also provide reference points for the tilting components and mounting points for the crane to be installed to the tower top nacelle.

[0038] The two tilting components are spaced apart along the width direction and correspond one-to-one with the two mounting beams 111. This creates a reserved space between the two tilting components, providing ample operating space for the tilting of the crane and the installation of other components.

[0039] The two flipping components have the same structure. The following explanation of the structure and flipping process of the flipping component will be based on one of the flipping components.

[0040] As shown in Figures 1 to 3, the flipping component includes a flipping frame 121, a first telescopic drive component 122, and a second telescopic drive component 123.

[0041] The tilting frame 121 includes a first tilting connector 1211 and a tilting support 1212. One end of the first tilting connector 1211 is connected to the mounting beam 111 via a first connecting shaft (not shown in the figure), and the other end is connected to a crane via a second connecting shaft (not shown in the figure). One end of the tilting support 1212 is connected to the first tilting connector 1211, and the other end extends away from the first tilting connector 1211. Specifically, one end of the first tilting connector 1211 along its own length is connected to the mounting beam 111 via the first connecting shaft, and the other end of the first tilting connector 1211 along its own length is connected to the crane via the second connecting shaft. In other words, the first connecting shaft and the second connecting shaft are arranged parallel to each other and both extend along the width direction of the mounting beam 111. One end of the tilting support 1212 is connected to the middle section of the first tilting connector 1211, and the other end extends away from the first tilting connector 1211.

[0042] One end of the second telescopic drive member 123 is connected to the tilting frame 121, and the other end extends along the length of the mounting beam 111 and is used to connect to the crane, allowing the crane to rotate around the second connecting shaft. When the crane is lifted close to the tilting component, the other end of the first tilting connector 1211 can be connected to the crane using the second connecting shaft, and then the other end of the second telescopic drive member 123 can be connected to the crane, achieving alignment between the crane and the tilting component. Finally, the second telescopic drive member 123 shortens. During the shortening process, the second telescopic drive member 123 drives the crane to rotate initially around the second connecting shaft, raising the crane from the first position suspended under the tower as shown in Figures 7 and 8 to the second position of a horizontal transition posture as shown in Figure 9. The crane in the second position is ready for subsequent overall tilting.

[0043] One end of the first telescopic drive member 122 is connected to the other end of the tilting support member 1212, and the other end is connected to the mounting beam 111, so that the tilting frame 121 drives the crane to rotate around the first connecting shaft. After the crane is lifted to the second position, during the extension of the first telescopic drive member 122, the first telescopic drive member 122 can drive the tilting frame 121 to rotate around the first connecting shaft, thereby driving the crane to perform the main tilting action around the first connecting shaft, and finally making the crane return to the correct "head up, feet down" posture as shown in Figure 10 and sit securely on the mounting beam 111.

[0044] In this embodiment, after the crane is lifted close to the tilting component, it is not tilted directly. Instead, it is first connected to specific parts of the crane via the first tilting connector 1211 and the second telescopic drive 123. This connection process transforms the originally freely swaying crane into a component connected to the mounting frame, reducing the degree of freedom in subsequent operations. After the connection is completed, the second telescopic drive 123 starts working, driving the crane to rotate around the second connecting shaft. This is a single-degree-of-freedom rotational motion with a unique and definite trajectory. The purpose of this action is not to complete the final tilting, but to precisely lift the crane from the "first position" (suspended outside the tower) to the "second position" (where the mounting shaft and the bottom cylinder 210 are placed on the mounting beam 111). This process solves the alignment problem from free suspension to initial positioning. When the crane is in the "second position," the first telescopic drive 122 starts working, driving the entire tilting frame 121 (now integrated with the crane) to rotate around the first connecting shaft. This is also a single-degree-of-freedom rotational motion, with its rotation axis fixed to the mounting frame. Because the crane is already part of the rigid connection, the tilting action is very smooth and undisturbed. When the first telescopic drive component 122 extends to the predetermined length, the tilting action stops. At this point, the crane's posture (from "head down, feet up" to "head up, feet down") and position (perfectly situated at the predetermined installation point on the mounting beam 111) are precisely defined by the mechanical structure itself. It does not rely on the operator's visual inspection or intuition. This ensures that after tilting, the crane can land in its final installation position, achieving precise alignment and installation. This two-step tilting process—first capturing, then tilting—decomposes the complex alignment process into two deterministic mechanical actions that can be successfully performed in one go, eliminating the time spent on repeated alignment, adjustment, and waiting, and shortening the entire work window. Therefore, this embodiment solves the problems of difficult and time-consuming alignment during the tilting process in existing self-lifting schemes, ensuring precise alignment and installation of the crane during tilting, and improving installation efficiency.

[0045] It should be noted that, during the tilting process, in order to reduce the load on the second telescopic drive component 123, the pitch cylinder 250 needs to be retracted, causing the crane boom 230 to rotate around the connecting shaft of the support frame 240, adjusting the position of the crane's center of gravity to ensure that the crane's center of gravity is located on the side closer to the top of the tower nacelle. After adjusting the crane's center of gravity, it is also necessary to ensure that the crane's head does not interfere with the nacelle cover during the lifting and tilting of the crane.

[0046] Optionally, the first telescopic drive member 122 includes, but is not limited to, one of a hydraulic cylinder, a pneumatic cylinder, or an electric telescopic rod. Preferably, the first telescopic drive member 122 is a hydraulic cylinder.

[0047] Optionally, the second telescopic drive 123 includes, but is not limited to, a hydraulic cylinder, a pneumatic cylinder, or an electric telescopic rod. Preferably, the second telescopic drive 123 is a hydraulic cylinder.

[0048] As shown in Figures 1 to 3, optionally, the mounting beam 111 is provided with a first mounting lug 101 and a second mounting lug 102; the first mounting lug 101 and the second mounting lug 102 are arranged at intervals along the length of the mounting beam 111; the first mounting lug 101 is connected to one end of the first flip-up connector 1211; the second mounting lug 102 is used to connect to the second crane lug 212 of the crane. Specifically, one end of the first flip-up connector 1211 can always be connected to the first mounting lug 101 through a first connecting shaft. When the crane is positioned on the mounting beam 111 in an "upside-down" posture, the second crane lug 212 of the crane is pinned to the second mounting lug 102. This allows the crane to be stably installed on the mounting frame.

[0049] When the crane completes its tilt and sits on the mounting beam 111 in a "head-up, feet-down" position, it is merely placed on top. Without the second mounting lug 102, the final installation position of the crane at this point depends entirely on the accuracy of the tilting motion, the friction between it and the mounting beam 111, and its own weight. If it is necessary to fix the crane's base cylinder 210 to the mounting beam 111 using bolts or other means, workers would need to fine-tune this multi-ton behemoth at a height to align the bolt holes on its base with the pre-drilled holes on the mounting beam 111. This process is difficult, time-consuming, and the accuracy is hard to guarantee.

[0050] In this embodiment, the second mounting lug 102 is precisely fixed to the mounting beam 111 during ground manufacturing, and its position is preset and fixed. When the first telescopic drive component 122 drives the crane to rotate, the crane's own second crane lug 212 naturally moves towards this fixed second mounting lug 102. This provides a physical guide and positioning target for the crane's "landing." Once the crane's second crane lug 212 aligns with the second mounting lug 102 on the mounting beam 111, the crane achieves precise positioning without the need for secondary alignment adjustments. Since the two lugs have already achieved precise positioning, workers only need to pass the prepared connecting pins or high-strength bolts through the aligned pin holes of the two lugs to complete the final load-bearing connection. This simplifies a complex "alignment and fixation" process into a simple "pin insertion" action, shortening the time spent working at heights, reducing labor intensity, thereby improving overall installation efficiency, solving the problems of difficult positioning, slow alignment, and poor stability after the crane is flipped into place, and achieving precise, stable, and efficient installation.

[0051] As shown in Figure 1, in some embodiments of the present invention, the mounting frame includes not only the mounting beam 111, but also two side beams 113; the two side beams 113 correspond one-to-one with the two mounting beams 111; the side beams 113 are located outside the mounting beams 111, one end of the side beam 113 is connected to the mounting beam 111, and the other end extends along the length direction of the mounting beam 111; the other end of the first telescopic drive member 122 is connected to the side beam 113. Specifically, a third mounting lug 103 is provided on the side beam 113, and the third mounting lug 103 and the first mounting lug 101 are arranged at intervals along the length direction of the mounting beam 111; the first mounting lug 101 is located between the second mounting lug 102 and the third mounting lug 103. In other words, the second mounting lug 102, the first mounting lug 101, and the third mounting lug 103 are arranged at intervals along the length direction of the mounting beam 111 in sequence; the other end of the first telescopic drive member 122 is connected to the third mounting lug 103.

[0052] This is equivalent to adding a side beam 113 to the above embodiment. The side beam 113, when connected to the mounting beam 111, forms a more robust composite structure. This structure's ability to resist bending and torsional deformation far exceeds that of a single mounting beam 111. When the first telescopic drive member 122 operates, its thrust acts on this reinforced overall frame, rather than a relatively weak single point, thereby improving the overall rigidity and load-bearing capacity of the mounting frame. This more robust frame can also better cope with impact loads or uneven stress conditions that may occur during the overturning process, greatly reducing the risk of accidents due to insufficient structural strength, thus improving the safety of the entire hoisting operation.

[0053] In this embodiment, the other end of the first telescopic drive member 122 is connected to the side beam 113. The side beam 113 can be designed to be thicker and more robust, specifically designed to withstand and transmit the thrust generated by the first telescopic drive member 122. The force first acts on the side beam 113, and then, through the connection between the side beam 113 and the mounting beam 111, the force is distributed throughout the entire frame structure, effectively avoiding dangerous stress concentration phenomena and making the stress distribution of the entire system more uniform and reasonable.

[0054] The second mounting lug 102, the first mounting lug 101, and the third mounting lug 103 are arranged at intervals along the length of the mounting beam 111. This arrangement optimizes the load distribution on the mounting frame, ensures that the load can be reasonably transferred to the top nacelle of the tower, guarantees the structural strength and stability of the entire system, and provides a clear and reasonable mechanical basis for the entire flipping and fixing process.

[0055] Optionally, a support plate is installed at the end of the mounting beam 111, extending along the length of the mounting beam 111; the lower side of the side beam 113 is pressed against the support plate. This ensures that the side beam 113 extends horizontally.

[0056] As shown in Figure 2, optionally, a limiting block 112 is installed at the end of the mounting beam 111; the side of the limiting block 112 facing the first flip-up connector 1211 is used to abut against the first flip-up connector 1211. In other words, before the first flip-up connector 1211 rotates around the first connecting shaft, the side of the limiting block 112 facing the first flip-up connector 1211 abuts against the first flip-up connector 1211. With this design, the limiting block 112 plays a mechanical limiting role, which can accurately limit the initial position of the first flip-up connector 1211 and prevent the first flip-up connector 1211 from continuing to move downward.

[0057] As shown in Figures 1 to 3, in some embodiments of the present invention, the tilting frame 121 includes a first tilting connector 1211 and a tilting support 1212, as well as a second tilting connector 1213. One end of the second tilting connector 1213 is connected to the other end of the first tilting connector 1211 via a second connecting shaft, and the other end is used to connect to the first crane lug 211 of the crane. Specifically, the second tilting connector 1213 has lugs at both ends along its length. The lug at one end of the second tilting connector 1213 is connected to the other end of the first tilting connector 1211 via a second connecting shaft, and the lug at the other end of the second tilting connector 1213 is used to connect to the first crane lug 211 of the crane.

[0058] In this embodiment, by adding a second flip connector 1213 between the first flip connector 1211 and the first crane lug 211, it is equivalent to adding an extra joint. This joint provides a certain degree of freedom of movement at the moment of connection, which can absorb and compensate for minor deviations caused by crane swaying or lifting position, thereby improving the fault tolerance of the connection. In addition, the second flip connector 1213 can be designed as a smaller and more optimized structure. During connection, the crane only needs to be lifted to the approximate position, and this compact second flip connector 1213 can be more easily operated or guided to connect with the first crane lug 211 first. By optimizing the connection structure, the complex docking of large components is transformed into a simple guided connection, thereby reducing the difficulty of alignment, shortening the operation time, and improving the installation efficiency and high-altitude operation safety of the entire hoisting system.

[0059] As shown in Figure 5, optionally, a guide member 213 is provided on the bottom plate of the crane's base cylinder 210. One end of the guide member 213 is located within the installation gap of the crane's first crane lug 211, and the other end extends towards the crane's second crane lug 212; the guide member 213 is slidably engaged with the other end of the second tilting connector 1213. In other words, when the crane approaches the tilting component in a "head down, feet up" posture, the angle θ between the second tilting connector 1213 and the horizontal plane is adjusted so that the other end of the second tilting connector 1213 adapts to the current position of the crane until the other end of the second tilting connector 1213 abuts against the guide member 213. At this time, the crane continues to be lifted using the wire rope 400, and the other end of the second tilting connector 1213 slides upward along the guide member 213. At the same time, the second tilting connector 1213 also rotates around the second connecting shaft, guiding one end of the second telescopic drive member 123 to align with the crane's second crane lug 212. The second flip connector 1213 is not only a structural connector, but also a preliminary contact and sliding component that realizes the function of "guided alignment".

[0060] Furthermore, the side of the guide member 213 away from the bottom cylinder 210 is an arc-shaped surface, which corresponds to the rotation path of the second flip-up connector 1213. The arc-shaped surface design allows the sliding path of the second flip-up connector 1213 to better match its rotation around the second connecting shaft, avoiding problems such as jamming.

[0061] As shown in Figures 1 to 3, in some embodiments of the present invention, the tilting frame 121 includes not only a first tilting connector 1211, a tilting support 1212, and a second tilting connector 1213, but also a third tilting connector 1214. The third tilting connector 1214 is spaced apart on one side of the second tilting connector 1213; one end of the third tilting connector 1214 is used to connect to the second crane lug 212 of the crane, and the other end is connected to the mounting beam 111 via a second mounting lug 102 provided on the mounting beam 111. When the crane is aligned, one end of the third tilting connector 1214 is connected to the second crane lug 212 of the crane, and the other end is suspended in the air. When the crane tilts onto the mounting beam 111 in a "head-up, feet-down" posture, the other end of the third tilting connector 1214 is connected to the mounting beam 111 via the second mounting lug 102 provided on the mounting beam 111. At this time, the third flip-up connector 1214 is equivalent to one outrigger of the crane, while the combined structure of the first flip-up connector 1211 and the second flip-up connector 1213 is equivalent to the second outrigger of the crane. The two outriggers enable the crane to be stably and horizontally installed on the mounting beam 111.

[0062] Without the third flip connector 1214, to ensure the crane remains horizontal when installed on the mounting beam 111 in an "upside-down" position, the second crane lug 212 would need to be raised to compensate for the height difference between the two sides of the crane. By setting the third flip connector 1214, it is possible to ensure that the crane's base cylinder 210 is horizontal, rather than tilted, when the crane is installed on the mounting beam 111 in an "upside-down" position, without modifying the structure of the crane lugs.

[0063] As shown in Figures 1 to 3, optionally, one side of the third flipping connector 1214 is connected to the second flipping connector 1213 via the second connector 132, and the other end of the second telescopic drive 123 is connected to the third flipping connector 1214. Connecting the third flipping connector 1214 and the second flipping connector 1213 into a single unit via the second connector 132 allows for synchronized operation. The distance between the third flipping connector 1214 and the second flipping connector 1213 can be pre-designed to be equal to the distance between the first crane lug 211 and the second crane lug 212. When the second telescopic drive 123 drives the third flipping connector 1214, the second flipping connector 1213 also operates synchronously, improving the alignment efficiency between the crane and the flipping frame 121 and reducing alignment difficulty.

[0064] Optionally, one side of the third flip connector 1214 is also connected to the second flip connector 1213 via a sixth connector 136. The sixth connector 136 and the second connector 132 are spliced ​​together to form a V-shape, which can further improve the structural strength of the flip component.

[0065] As shown in Figures 1 to 3, optionally, the two third flip-connectors 1214 are connected by a first connector 131; the other end of each second telescopic drive member 123 is connected to the first connector 131. In other words, the second telescopic drive member 123 is arranged between the two third flip-connectors 1214, and the other end of each second telescopic drive member 123 is connected to the first connector 131.

[0066] Connecting the two third tilting connectors 1214 via the first connector 131 enhances the overall strength of the tilting frame 121 and provides an installation base for the second telescopic drive component 123. Connecting the other end of the second telescopic drive component 123 to the first connector 131 avoids the need for additional connection holes on the crane, reducing manufacturing costs. The second telescopic drive component 123 can directly drive the third tilting connector 1214, thereby synchronously rotating the second tilting connector 1213 around the second connecting shaft to adapt to different positions when the crane is lifted to the top nacelle of the tower.

[0067] As shown in Figure 6, when the crane is lifted close to the tilting component, the extension and retraction of the second telescopic drive component 123 adjusts the angle θ between the second tilting connector 1213 and the horizontal plane (i.e., the plane where the mounting beam is located), thus adjusting the horizontal distance L between the first mounting lug 101 and the other end of the second tilting connector 1213; where L = L1 + L2 × sin(θ - 90°), and L1 is the length of the first tilting connector 1211 and L2 is the length of the second tilting connector 1213. By adjusting the angle θ between the second tilting connector 1213 and the horizontal plane, it can adapt to different positions when the crane is lifted to the top of the tower nacelle, reducing the requirements for alignment accuracy.

[0068] As shown in Figure 6, when the crane is lifted close to the tilting component, the first telescopic drive member 122 retracts, making the first tilting connector 1211 horizontal. This means the lower side of the first tilting connector 1211 contacts the limiting block 112, preventing further downward movement. Extending the second telescopic drive member 123 adjusts the angle θ between the second tilting connector 1213 and the horizontal plane, adapting the other end of the second tilting connector 1213 to the current crane position until it abuts against the arc-shaped surface of the guide member 213. The crane is then further lifted using the wire rope 400, and the other end of the second tilting connector 1213 slides upward along the arc-shaped surface of the guide member 213 while simultaneously rotating around the second connecting shaft until one end of the third tilting connector 1214 aligns with the second crane lug 212, as shown in Figure 7. This achieves the goal of quickly aligning and installing the crane with the tilting frame 121.

[0069] The second telescopic drive member 123 is retracted, causing the third flipping connector 1214 and the crane to rotate around the second connecting shaft until the third flipping connector 1214 and the first flipping connector 1211 are both in a horizontal state. At this time, the other end of the second flipping connector 1213 is aligned and pinned to the first crane lug 211 of the crane, as shown in Figure 9.

[0070] Extend the first telescopic drive member 122, and the crane, the second flip connector 1213 and the third flip connector 1214 rotate as a whole around the first connecting shaft until the end of the third flip connector 1214 away from the crane is aligned and pinned to the second mounting lug 102, as shown in Figure 10, thus completing the installation of the crane.

[0071] As shown in Figures 1 to 3, optionally, the two third flipping connectors 1214 are also connected by a fourth connector 134. The fourth connector 134 is arranged at intervals with the first connector 131 to further improve the overall strength of the flipping frame 121.

[0072] As shown in Figure 2, in some embodiments of the present invention, the two flipping support members 1212 are connected by a third connector 133. In other words, the two flipping support members 1212 are connected together by the third connector 133, which enhances the structural rigidity and stability of the flipping component.

[0073] Optionally, one end of the second telescopic drive member 123 is connected to the third connector 133, and the other end of the second telescopic drive member 123 is connected to the first connector 131. This allows the driving force of the second telescopic drive member 123 to be evenly distributed to the two tilting components, thereby ensuring that the movements of the two tilting components are completely synchronized, ensuring the stability of the crane's posture during the tilting process, and avoiding the risk of twisting and deformation.

[0074] As shown in Figure 2, optionally, one end of the flip support 1212 is connected to the middle section of the first flip connector 1211, and the other end is connected to the middle section of the third connector 133. The end of the third connector 133 is connected to one end of the first support connector 1215. The other end of the first support connector 1215 extends away from the third connector 133 and is connected to one end of the second support connector 1216. The other end of the second support connector 1216 extends towards the first telescopic drive member 122 and is connected to the first telescopic drive member 122. By adding the first support connector 1215 and the second support connector 1216, the mounting frame where the side beam 113 is located outside the mounting beam 111 can be better accommodated, allowing for more reserved space between the two flip components.

[0075] As shown in Figure 2, optionally, the two first flipping connectors 1211 are connected by a fifth connector 135. In other words, connecting the two first flipping connectors 1211 together using the fifth connector 135 not only improves the structural strength of the flipping component, but also ensures the consistency of the movement and posture of the two first flipping connectors 1211.

[0076] As shown in Figure 4, a specific embodiment of the second aspect of the present invention provides a hoisting system. The hoisting system includes a crane and a hoisting and tilting device as described in any of the above embodiments; the hoisting and tilting device is connected to the crane.

[0077] Since the hoisting system of this embodiment includes the hoisting and tilting device of any of the above embodiments, it has at least the advantages of the hoisting and tilting device, which will not be elaborated here.

[0078] In some embodiments of the present invention, the hoisting system further includes a hoisting beam 300, a wire rope 400, and a lifting power device (not shown in the figure). A beam support 114 is mounted on the mounting frame, and the beam support 114 and the tilting component are spaced apart along the length of the mounting beam 111. The hoisting beam 300 is detachably mounted on the upper end of the beam support 114 (i.e., the end away from the mounting frame). One end of the wire rope 400 is connected to the winch of the lifting power device, and the other end extends through the guide pulley of the crane to the fixed pulley of the hoisting beam 300 to form a guide rope for the hoisting process; the wire rope 400 passes over the fixed pulley of the hoisting beam 300 and then extends downward to the movable pulley of the crane, and after passing over the movable pulley, extends to the hoisting beam 300 for anchoring. The lifting power unit is started, and the crane is lifted from the ground to the top of the tower in a "head down, feet up" position under the traction of the wire rope 400. Then, the crane is installed on the mounting beam 111 of the mounting frame through the lifting and turning device, thus completing the installation of the crane.

[0079] Optionally, the upper end of the beam support 114 (i.e. the end away from the mounting frame) is formed with a placement groove, and the hoisting beam 300 is placed in the placement groove.

[0080] As shown in Figure 4, in some embodiments of the present invention, the hoisting system further includes an auxiliary crane 500; the auxiliary crane 500 is installed in the tower top nacelle and is used to lift and transport the crossbeam 300 and various components required for assembling the hoisting and tilting device.

[0081] The auxiliary crane 500 is prior art and will not be described in detail in the embodiments of this invention. Typically, the auxiliary crane 500 is smaller and lighter than the main crane.

[0082] It should be noted that when the crane needs to be tilted, the auxiliary crane 500 needs to be used to lift the lifting beam 300 from the beam support 114 and transfer it. When the crane needs to be raised, the lifting beam 300 needs to be placed back on the upper end of the beam support 114.

[0083] The current crane includes a hook 220, a boom 230, a support frame 240, a pitch cylinder 250, and a base 210. The bottom of the boom 230 is connected to the support frame 240 via a connecting shaft, and the support frame 240 is installed on the base 210; the head end of the boom 230 is connected to the hook 220. One end of the pitch cylinder 250 is connected to the support frame 240, and the other end is connected to the boom 230. The pitch cylinder 250 can drive the boom 230 to pitch relative to the support frame 240 by extending and retracting. The base plate of the base 210 is equipped with a first crane lug 211 and a second crane lug 212; the first crane lug 211 and the second crane lug 212 are arranged on opposite sides of the base plate. Usually, there are two first crane lugs 211, which are arranged alternately on one side of the base plate. There are usually two second crane lugs 212, which are arranged at intervals on the other side of the base plate.

[0084] As shown in Figure 5, in some embodiments of the present invention, the crane includes a base cylinder 210. A guide member 213 is provided on the bottom plate of the base cylinder 210. One end of the guide member 213 is located within the installation gap of the first crane lug 211, and the other end extends towards the second crane lug 212. The guide member 213 is slidably engaged with the other end of the second tilting connector 1213. In other words, this embodiment adds a guide member 213 to the existing base cylinder 210 of the crane. During the alignment process between the crane and the tilting component, the other end of the second tilting connector 1213 contacts the guide member 213 and slides upward along the guide member 213 as the crane is continuously lifted by the wire rope 400. Simultaneously, the other end of the second tilting connector 1213 also rotates about the second connecting shaft. The mutual cooperation between the second tilting connector 1213 and the guide member 213 guides the alignment.

[0085] Furthermore, the side of the guide member 213 away from the bottom cylinder 210 is an arc-shaped surface, which corresponds to the rotation path of the second flip-up connector 1213. The arc-shaped surface design allows the sliding path of the second flip-up connector 1213 to better match its rotation around the second connecting shaft, avoiding problems such as jamming.

[0086] For example, the hoisting system includes a crane, a hoisting and tilting device, a hoisting beam 300, a wire rope 400, a lifting power unit (not shown in the figure), and an auxiliary crane 500. The bottom plate of the crane's base cylinder 210 is provided with two first crane lugs 211 and two second crane lugs 212. A guide member 213 is also provided on the bottom plate. One end of the guide member 213 is located within the installation gap of the first crane lugs 211, and the other end extends towards the second crane lugs 212. The side of the guide member 213 away from the bottom plate is curved. The lifting power unit includes a winch, typically placed on the ground. The hoisting beam 300 is mounted to the tower top nacelle via a mounting frame. One end of the wire rope 400 is connected to the winch of the lifting power unit, and the other end extends through the guide pulley of the crane to the fixed pulley of the lifting beam 300 to form a guide rope for the crane's lifting process; the wire rope 400 passes over the fixed pulley of the lifting beam 300 and then extends downward to the movable pulley of the crane, passes over the movable pulley and extends to the lifting beam 300 for anchoring. The auxiliary crane 500 is installed in the nacelle at the top of the tower.

[0087] The hoisting and tilting device includes a mounting frame, two tilting components, and connecting components.

[0088] The mounting frame includes two crossbeam supports 114, two mounting beams 111, and two side beams 113. The two mounting beams 111 are spaced apart along their width. The mounting beams 111 are used for mounting to the top nacelle of the tower. The two side beams 113 correspond one-to-one with the two mounting beams 111, and are located outside the mounting beams 111. One end of the side beam 113 is connected to the mounting beam 111, and the other end extends along the length of the mounting beam 111. The two crossbeam supports 114 correspond one-to-one with the two side beams 113, and are mounted on the other end of the upper side of the side beam 113. A limit block 112 is installed on the end of the mounting beam 111 facing the crossbeam support 114.

[0089] The upper side of the mounting beam 111 is provided with a first mounting lug 101 and a second mounting lug 102 at intervals along its length. The first mounting lug 101 is located on the upper side of the mounting beam 111 near one end of the crossbeam support 114. A third mounting lug 103 is provided on the side beam 113, and the third mounting lug 103 and the first mounting lug 101 are arranged at intervals along the length of the mounting beam 111.

[0090] Two flipping components are arranged at intervals along the width direction of the mounting beam 111, and correspond one-to-one with the two mounting beams 111. The flipping components include a flipping frame 121, a first telescopic drive component 122, and a second telescopic drive component 123.

[0091] The tilting frame 121 includes a first tilting connector 1211, a second tilting connector 1213, a third tilting connector 1214, and a tilting support 1212. The connecting components include a first connector 131, a second connector 132, a third connector 133, a fourth connector 134, a fifth connector 135, and a sixth connector 136.

[0092] One end of the first flip-up connector 1211 is connected to the first mounting lug 101 via a first connecting shaft, and the other end of the first flip-up connector 1211 is connected to one end of the second flip-up connector 1213 via a second connecting shaft. The other end of the second flip-up connector 1213 is used to connect to the first crane lug 211 of the crane. The third flip-up connector 1214 is located on one side of the second flip-up connector 1213, and the middle section of the third flip-up connector 1214 is connected to the middle section of the second flip-up connector 1213 via the second connector 132 and the sixth connector 136 of the connecting components. After the crane and the flip-up components are aligned, one end of the third flip-up connector 1214 is used to connect to the second crane lug 212 of the crane. After the crane is positioned on the mounting beam 111 in a "head-up, feet-down" posture, the other end of the third flip-up connector 1214 is used to connect to the second mounting lug 102.

[0093] One end of the flip support 1212 is connected to the middle section of the first flip connector 1211, and the other end of the flip support 1212 is connected to the middle section of the third connector 133; the end of the third connector 133 is connected to one end of the first support connector 1215, and the other end of the first support connector 1215 extends away from the flip support 1212 and is connected to one end of the second support connector 1216; the other end of the second support connector 1216 extends toward the first telescopic drive 122.

[0094] One end of the first telescopic drive member 122 is connected to the other end of the second support connector 1216, and the other end of the first telescopic drive member 122 is connected to the third mounting lug 103. One end of the second telescopic drive member 123 is connected to the third connector 133, and the other end is connected to the first connector 131.

[0095] The lifting power unit is activated, and the crane, pulled by the wire rope 400, is lifted from the ground to near the top of the tower cabin in a "head down, feet up" position, as shown in Figure 6. At this time, the first telescopic drive member 122 is retracted, bringing the first tilting connector 1211 to a horizontal position, meaning the lower side of the first tilting connector 1211 contacts the limiting block 112, which prevents the first tilting connector 1211 from moving further downward. The second telescopic drive member 123 is extended, and the angle θ between the second tilting connector 1213 and the horizontal plane is adjusted so that the other end of the second tilting connector 1213 adapts to the current position of the crane, until the other end of the second tilting connector 1213 abuts against the guide member 213. Using the steel wire rope 400, the crane is continuously lifted. The other end of the second flipping connector 1213 slides upward along the guide 213. At the same time, the second flipping connector 1213 also rotates around the second connecting shaft until one end of the third flipping connector 1214 is aligned with and pinned to the second crane lug 212 of the crane, as shown in Figure 7. This achieves the purpose of quickly aligning and installing the crane with the flipping frame 121.

[0096] As shown in Figure 8, the pitch cylinder 250 is retracted, causing the boom 230 of the crane to rotate relative to the support frame 240, thereby adjusting the center of gravity of the crane so that it is located on the side closer to the top of the tower nacelle. This reduces the load on the second telescopic drive component 123.

[0097] The auxiliary crane 500 is used to transfer the lifting beam 300, that is, to remove the lifting beam 300 from the beam support 114 to prevent it from affecting the crane's tilting. The second telescopic drive 123 is retracted, causing the third tilting connector 1214 and the crane to rotate around the second connecting shaft until both the third tilting connector 1214 and the first tilting connector 1211 are in a horizontal state. At this time, the other end of the second tilting connector 1213 is aligned and pinned to the first crane lug 211 of the crane, as shown in Figure 9.

[0098] Extend the first telescopic drive member 122, and the crane, the second flip connector 1213, the third flip connector 1214, and the first flip connector 1211 rotate as a whole around the first connecting shaft until the end of the third flip connector 1214 away from the crane is aligned and pinned to the second mounting lug 102, as shown in Figure 10. At this time, the second flip connector 1213 and the first flip connector 1211 are in a vertical state, and the third flip connector 1214 is also in a vertical state, thus completing the flip installation of the crane.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hoisting and tilting device, characterized in that, include: The mounting frame includes two mounting beams (111) spaced apart along their width; the mounting beams (111) are used to install onto the tower top nacelle; two tilting components are spaced apart along the width and correspond one-to-one with the two mounting beams (111); each tilting component includes a tilting frame (121), including a first tilting connector (1211) and a tilting support (1212); one end of the first tilting connector (1211) is connected to the mounting beam (111) via a first connecting shaft, and the other end is connected to the crane via a second connecting shaft; one end of the tilting support (1212) is connected to the first tilting connector. (1211) is connected, and the other end extends in a direction away from the first flipping connector (1211); a first telescopic drive (122) is connected at one end to the other end of the flipping support (1212) and at the other end to the mounting beam (111), so that the flipping frame (121) drives the crane to rotate around the first connecting shaft; a second telescopic drive (123) is connected at one end to the flipping frame (121) and at the other end extends along the length direction of the mounting beam (111) and is used to connect with the crane, so that the crane rotates around the second connecting shaft.

2. The hoisting and tilting device according to claim 1, characterized in that, The tilting frame (121) further includes a second tilting connector (1213), one end of which is connected to the other end of the first tilting connector (1211) via the second connecting shaft, and the other end is used to connect to the first crane lug (211) of the crane.

3. The hoisting and tilting device according to claim 2, characterized in that, The tilting frame (121) further includes: a third tilting connector (1214), which is spaced apart on one side of the second tilting connector (1213); one end of the third tilting connector (1214) is used to connect with the second crane lug (212) of the crane, and the other end is connected to the mounting beam (111) through the second mounting lug (102) provided on the mounting beam (111).

4. The hoisting and tilting device according to claim 3, characterized in that, One side of the third flip connector (1214) is connected to the second flip connector (1213) via the second connector (132); the other end of the second telescopic drive (123) is connected to the third flip connector (1214).

5. The hoisting and tilting device according to claim 4, characterized in that, The two third flip connectors (1214) are connected by a first connector (131); the other end of each of the second telescopic drive members (123) is connected to the first connector (131).

6. The hoisting and tilting device according to any one of claims 1 to 5, characterized in that, The mounting frame further includes: two side beams (113), which correspond one-to-one with two mounting beams (111); the side beams (113) are located outside the mounting beams (111), one end of the side beams (113) is connected to the mounting beams (111), and the other end extends along the length direction of the mounting beams (111); the other end of the first telescopic drive member (122) is connected to the side beams (113).

7. The hoisting and tilting device according to claim 6, characterized in that, The mounting beam (111) is provided with a first mounting lug (101) and a second mounting lug (102); the side beam (113) is provided with a third mounting lug (103); the second mounting lug (102), the first mounting lug (101) and the third mounting lug (103) are arranged at intervals along the length direction of the mounting beam (111); one end of the first mounting lug (101) is connected to one end of the first flip connector (1211) through the first connecting shaft; the second mounting lug (102) is used to connect to the second crane lug (212) of the crane; the third mounting lug (103) is connected to the other end of the first telescopic drive (122).

8. The hoisting and tilting device according to claim 6, characterized in that, A limiting block (112) is installed at the end of the mounting beam (111); the side of the limiting block (112) facing the first flip connector (1211) is used to abut against the first flip connector (1211).

9. A hoisting system, characterized in that, It includes a crane and a lifting and tilting device as described in any one of claims 1 to 8; the lifting and tilting device is connected to the crane.

10. The hoisting system according to claim 9, characterized in that, The crane includes: a base cylinder (210), and a guide (213) is provided on the bottom plate of the base cylinder (210). One end of the guide (213) is located in the installation gap of the first crane lug (211) of the crane, and the other end extends toward the second crane lug (212) of the crane. The guide (213) is slidably engaged with the other end of the second flip-connector (1213).

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