Lifting device for lifting wind turbine tower

Abstract

The present invention discloses a lifting device for lifting a wind power tower, wherein the wind power tower comprises a plurality of cylinder sections, and the plurality of cylinder sections are sequentially sleeved according to the size of the inner diameter, and is characterized in that the lifting device comprises: a plurality of lifting mechanisms, which are arranged between two adjacent cylinder sections, and the lifting mechanism comprises: a rack, which is axially arranged on the inner wall of the cylinder section with a larger inner diameter, and has a plurality of tooth grooves arranged at intervals thereon; a first lifting component, wherein the first end is rotatably mounted on the cylinder section with a smaller inner diameter, and the second end is clamped in a tooth groove; a first adjusting component, wherein the first end is rotatably mounted on the cylinder section with a smaller inner diameter, and the second end is rotatably mounted on the first lifting component; a second lifting component, wherein the first end is rotatably mounted on the cylinder section with a smaller inner diameter, and the second end is clamped in another tooth groove; and the first lifting component and the first adjusting component are extended or shortened so that there is a relative displacement between the two adjacent cylinder sections. The present invention can lift the cylinder sections of the wind power tower quickly and labor-savingly.

Description

Technical Field

[0001] The invention belongs to the technical field of wind power tower installation, and in particular relates to a lifting device for lifting a wind power tower. Background Art

[0002] At present, most wind turbine towers adopt segmented structure, and flanges are used to connect the segments. During the transportation of the tower, the segments need to be transported to the site separately. During the installation process, a heavy-load crane with a large lifting height is needed to lift each segment of the tower and connect them in the air. This installation process is complicated, costly, and has a long construction period, and requires special lifting equipment.

[0003] Therefore, in view of the above technical problems, it is necessary to provide a lifting device for lifting a wind turbine tower. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a lifting device for lifting a wind turbine tower.

[0005] In order to achieve the above purpose, the technical solution provided by an embodiment of the present invention is as follows:

[0006] A lifting device for lifting a wind turbine tower, the wind turbine tower comprising a plurality of cylinder segments, the plurality of cylinder segments being arranged in sequence from large to small in inner diameter, the lifting device comprising:

[0007] A plurality of lifting mechanisms, wherein the lifting mechanisms are arranged between two adjacent cylinder sections; wherein the lifting mechanisms include:

[0008] A rack, the rack being axially arranged on the inner wall of the cylinder section with a larger inner diameter, and having a plurality of tooth grooves arranged at intervals on the rack;

[0009] A first lifting assembly, wherein the first end is rotatably mounted on the cylinder section with a smaller inner diameter, and the second end is clamped to one of the plurality of tooth grooves;

[0010] A first adjusting assembly, a first end of which is rotatably mounted on the cylinder section with a smaller inner diameter, and a second end of which is rotatably mounted on the first lifting assembly;

[0011] A second lifting assembly, wherein the first end is rotatably mounted on the cylinder section with a smaller inner diameter, and the second end is clamped in one of the plurality of tooth grooves, and the second end of the second lifting assembly and the second end of the first lifting assembly are respectively clamped in different clamping grooves;

[0012] The first lifting assembly and the first adjusting assembly are extended or shortened so that two adjacent cylinder sections have a relative displacement.

[0013] In one embodiment, the tooth groove is arranged upward and the angle between the tooth groove and the inner wall of the cylinder section with a larger inner diameter is an acute angle.

[0014] In one embodiment, the first lifting assembly includes a first linear motion component rotatably mounted on the cylinder section with a smaller inner diameter and a first rolling component connected to the first linear motion component and clamped to one of the plurality of tooth grooves;

[0015] The first adjustment assembly comprises a second linear motion component, a first end of the second linear motion component is rotatably mounted on the cylinder section with a smaller inner diameter, and a second end of the second linear motion component is rotatably mounted on the first linear motion component;

[0016] The second lifting assembly includes a connecting rod rotatably mounted on the cylinder section with a smaller inner diameter and a second rolling component connected to the connecting rod and clamped to one of the plurality of tooth grooves.

[0017] In one embodiment, a fixing bracket for mounting the first lifting assembly and a first mounting seat for mounting the first adjusting assembly are provided on the outer wall of the cylinder section with a smaller inner diameter, and a second mounting seat for mounting the second lifting assembly is provided on the fixing bracket.

[0018] In one embodiment, the lifting device includes a second adjusting component, a first end of the second adjusting component is rotatably mounted on the cylinder section with a smaller inner diameter, and a second end is rotatably mounted on the second lifting component.

[0019] In one embodiment, the second adjustment assembly includes a third linear motion component, a first end of the third linear motion component is rotatably mounted on the cylinder section with a smaller inner diameter, and a second end of the third linear motion component is rotatably mounted on the second lifting assembly.

[0020] In one embodiment, the lifting device further comprises a plurality of guide assemblies, and the guide assemblies are arranged between two adjacent cylinder sections.

[0021] In one embodiment, the guide assembly includes a support and a guide wheel, wherein the support is disposed on the inner wall of the barrel section with a larger inner diameter, and the guide wheel is disposed on the support and rolls along the barrel section axis on the outer wall of the barrel section with a smaller inner diameter.

[0022] In one embodiment, the guide assembly is disposed above the lifting mechanism.

[0023] In one embodiment, the guide assembly and the lifting mechanism are evenly distributed along the radial direction of the cylinder segment.

[0024] The present invention has the following beneficial effects:

[0025] The present invention provides a lifting device for lifting a wind turbine tower, which can lift the wind turbine tower sections quickly and labor-savingly by extending or shortening a first lifting assembly and a first adjusting assembly so that two adjacent sections have relative displacement, without using an expensive crane with a large lifting height, thereby shortening the construction period and reducing the construction cost.

[0026] The present invention uses a lifting device to pre-set the cylinder segments together during transportation, thereby saving space;

[0027] The lifting device used in the present invention has a simple structure and is easy to use and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a structural schematic diagram of the cylinder sections of a wind power tower cylinder in a specific embodiment of the present invention being arranged in sequence;

[0030] Figure 2 It is a structural schematic diagram of a wind power tower in which all the cylinder sections are raised in a specific embodiment of the present invention;

[0031] Figure 3 It is a structural schematic diagram of a lifting device for lifting a wind power tower in a specific embodiment of the present invention being clamped in a tooth groove;

[0032] Figure 4 It is a schematic diagram of a state in which a cylinder section is lifted by a lifting device in a specific embodiment of the present invention;

[0033] Figure 5 It is a structural schematic diagram of a lifting device for lifting a wind power tower in a specific embodiment of the present invention being clamped to another tooth groove;

[0034] Figure 6 It is a top view of a wind turbine tower in a specific embodiment of the present invention. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In the description of the embodiments of the present invention, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the application is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the description of the embodiments of the present invention, it should be noted that the terms “first”, “second”, etc. used herein do not specifically refer to order or sequence, nor are they used to limit the present case. They are only used to distinguish components or operations described with the same technical terms.

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0042] The technical solution of the present invention will be described below in conjunction with the accompanying drawings.

[0043] Reference Figure 1 , Figure 2As shown, a lifting device for lifting a wind turbine tower in a specific embodiment of the present invention, the wind turbine tower includes a plurality of cylinder segments, the plurality of cylinder segments are sequentially sleeved in order of inner diameter from large to small, the lifting device includes: a plurality of lifting mechanisms 3, the lifting mechanism 3 is arranged between two adjacent cylinder segments; wherein the lifting mechanism 3 includes: a rack 35, the rack 35 is axially arranged on the inner wall of the cylinder segment 1 with a larger inner diameter, and a plurality of tooth grooves 351 are arranged at intervals on the rack 35; a first lifting assembly 31, the first end of which is rotatably mounted on the cylinder segment 2 with a smaller inner diameter, and the second end is clamped to the plurality of One of the tooth grooves 351; the first adjusting component 32, the first end of which is rotatably mounted on the cylinder section 2 with a smaller inner diameter, and the second end of which is rotatably mounted on the first lifting component 31; the second lifting component 33, the first end of which is rotatably mounted on the cylinder section 2 with a smaller inner diameter, and the second end of which is clamped in one of the plurality of tooth grooves 351, the second end of the second lifting component 33 and the second end of the first lifting component 31 are respectively clamped in different clamping grooves; the first lifting component 31 and the first adjusting component 32 are extended or shortened so that there is a relative displacement between the two adjacent cylinder sections.

[0044] According to this design, the present embodiment can make the two adjacent cylinder sections have relative displacement by extending or shortening the first lifting assembly 31 and the first adjusting assembly 32, so as to quickly and labor-savingly lift the cylinder sections of the wind turbine tower without using expensive cranes with large lifting heights, thus shortening the construction period and reducing the construction cost.

[0045] Specifically, refer to Figure 3 As shown, in order to facilitate the reliability of the engagement between the slot and the second end of the first lifting assembly 31 and the second end of the second lifting assembly 33, the tooth groove 351 in this embodiment is arranged upward and the angle between it and the inner wall of the barrel section 1 with a larger inner diameter is an acute angle.

[0046] The first lifting assembly 31 in this embodiment includes a first linear motion component 311 rotatably mounted on the barrel section 2 with a smaller inner diameter and a first rolling component 312 connected to the first linear motion component 311 and clamped to one of the plurality of tooth grooves 351;

[0047] The first adjustment assembly 32 includes a second linear motion component 321, a first end of the second linear motion component 321 is rotatably mounted on the cylinder section 2 with a smaller inner diameter, and a second end of the second linear motion component 321 is rotatably mounted on the first linear motion component 311;

[0048] The second lifting assembly 33 includes a connecting rod 331 rotatably mounted on the barrel section 2 with a smaller inner diameter and a second rolling member 332 connected to the connecting rod 331 and clamped to one of the plurality of tooth grooves 351 .

[0049] Understandable, see Figure 4 and Figure 5As shown, when the first lifting assembly 31 and the first adjustment assembly 32 in this embodiment are extended or shortened, the second end of the first lifting assembly 31 moves on the rack 35 through the first rolling component 312, moving from one tooth groove 351 to another tooth groove 351 and engaging therewith; the second end of the second lifting assembly 33 moves on the rack 35 through the second rolling component 332, moving from one tooth groove 351 to another tooth groove 351 and engaging therewith, so that relative displacement occurs between two adjacent cylinder sections, thereby enabling the cylinder sections of the wind turbine tower to be lifted and lowered quickly and labor-savingly.

[0050] Specifically, the first linear motion component 311 and the second linear motion component 321 in this embodiment can be linear motion actuators that meet load requirements, such as oil cylinders, electro-hydraulic push rods, lead screws, and worm gears. Relative displacement is generated between two adjacent cylinder sections through the extension or shortening of the linear motion actuators.

[0051] In addition, the first rolling component 312 and the second rolling component 332 in this embodiment can be rollers or gears meshing with the tooth grooves 351 on the rack 35, etc., which can move on the rack 35 by rotating around the central axis, moving from one tooth groove 351 to another tooth groove 351 and engaging with it.

[0052] Preferably, refer to Figure 3 As shown, a fixing bracket 21 for mounting the first lifting assembly 31 and a first mounting seat 211 for mounting the first adjusting assembly 32 are provided on the outer wall of the barrel section 2 with a smaller inner diameter in this embodiment, and a second mounting seat 212 for mounting the second lifting assembly 33 is provided on the fixing bracket 21.

[0053] According to this design, the first end of the first lifting assembly 31, the first end of the second lifting assembly 33, and the first end of the first adjusting assembly 32 in this embodiment can be securely arranged on the barrel section 2 with a smaller inner diameter and can rotate.

[0054] In addition, the lifting device in this embodiment includes a second adjusting component 34 , a first end of which is rotatably mounted on the cylinder section 2 with a smaller inner diameter, and a second end of which is rotatably mounted on the second lifting component 33 .

[0055] It can be understood that when the second lifting assembly 33 is extended or shortened along with the first lifting assembly 31 and the first adjusting assembly 32, its second end moves on the rack 35 through the second rolling component 332, moves from one tooth groove 351 to another tooth groove 351 and engages therewith, and the second lifting assembly 33 can be more reliably and stably engaged in the tooth groove 351 through the provision of the second adjusting assembly 34.

[0056] Furthermore, the fixing bracket 21 in this embodiment is also provided with a third mounting seat 213 for mounting the second adjusting assembly 34. According to this design, the first end of the second adjusting assembly 34 can be securely mounted on the cylinder section 2 with a smaller inner diameter and can rotate.

[0057] Specifically, the second adjustment assembly 34 in this embodiment includes a third linear motion component 341, a first end of the third linear motion component 341 is rotatably mounted on the cylinder section 2 with a smaller inner diameter, and a second end is rotatably mounted on the second lifting assembly 33. The third motion component 341 in this embodiment can be a linear motion actuator that meets load requirements, such as an oil cylinder, an electro-hydraulic push rod, a lead screw, and a worm gear.

[0058] Since the length of the second lifting component 33 remains unchanged, the second adjustment component 34 can be extended or shortened by design, so that the second end of the second lifting component 33 can be stably and reliably clamped in the slot to prevent it from escaping therefrom.

[0059] In addition, refer to Figure 3 As shown, in order to facilitate the control of the verticality of the cylinder segment during the lifting process, the lifting device in this embodiment also includes a plurality of guide assemblies 4, and the guide assemblies 4 are arranged between two adjacent cylinder segments.

[0060] Preferably, the guide assembly 4 in this embodiment includes a support 41 and a guide wheel 42, wherein the support 41 is arranged on the inner wall of the cylinder segment 1 with a larger inner diameter, and the guide wheel 42 is arranged on the support 41 and rolls along the cylinder segment axis on the outer wall of the cylinder segment 2 with a smaller inner diameter. According to this design, the guide wheel 42 can be installed by rolling with the outer wall of the cylinder segment 2 with a smaller inner diameter, which is conducive to the guidance and limitation of the axis during the lifting and lowering of the cylinder segment.

[0061] In addition, refer to Figure 2 As shown, in order to lift the cylinder section better and more smoothly, the guide assembly 4 in this embodiment is arranged above the lifting mechanism 3. According to this design, the upper and lower ends of the cylinder section act with the guide assembly 4 and the lifting mechanism 3 respectively, and the lifting process is more stable.

[0062] At the same time, refer to Figure 6 As shown, the guide assembly 4 and the lifting mechanism 3 in this embodiment are evenly distributed along the radial direction of the cylinder segment. According to this design, the cylinder segment can also be lifted and lowered better and more steadily.

[0063] It can be seen from the above technical solutions that the present invention has the following beneficial effects:

[0064] The present invention provides a lifting device for lifting a wind turbine tower, which can lift the wind turbine tower sections quickly and labor-savingly by extending or shortening a first lifting assembly and a first adjusting assembly so that two adjacent sections have relative displacement, without using an expensive crane with a large lifting height, thereby shortening the construction period and reducing the construction cost.

[0065] The present invention uses a lifting device to pre-set the cylinder segments together during transportation, thereby saving space;

[0066] The lifting device used in the present invention has a simple structure and is easy to use and maintain.

[0067] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and range of equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0068] In addition, it should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lifting device for lifting a wind turbine tower, the wind turbine tower comprising a plurality of cylinder segments, the plurality of cylinder segments being arranged in sequence from large to small in inner diameter, characterized in that: The lifting device comprises: A plurality of lifting mechanisms, wherein the lifting mechanisms are arranged between two adjacent cylinder sections; wherein the lifting mechanisms include: A rack, the rack being axially arranged on the inner wall of the cylinder section with a larger inner diameter, and having a plurality of tooth grooves arranged at intervals on the rack; A first lifting assembly, a first end of which is rotatably mounted on the cylinder section with a smaller inner diameter, and a second end of which is clamped on one of the plurality of tooth grooves, wherein the first lifting assembly comprises a first linear motion component rotatably mounted on the cylinder section with a smaller inner diameter, and a first rolling component connected to the first linear motion component and clamped on one of the plurality of tooth grooves; A first adjusting assembly, wherein the first end is rotatably mounted on the cylinder section with a smaller inner diameter, and the second end is rotatably mounted on the first lifting assembly, the first adjusting assembly comprises a second linear motion component, the first end of the second linear motion component is rotatably mounted on the cylinder section with a smaller inner diameter, and the second end is rotatably mounted on the first linear motion component; A second lifting assembly, wherein the first end is rotatably mounted on the cylinder section with a smaller inner diameter, and the second end is clamped on one of the plurality of tooth grooves, the second end of the second lifting assembly and the second end of the first lifting assembly are respectively clamped on different tooth grooves, and the second lifting assembly includes a connecting rod rotatably mounted on the cylinder section with a smaller inner diameter and a second rolling component connected to the connecting rod and clamped on one of the plurality of tooth grooves; a second adjusting assembly, wherein a first end of the second adjusting assembly is rotatably mounted on the cylinder section with a smaller inner diameter, and a second end of the second adjusting assembly is rotatably mounted on the second lifting assembly; the second adjusting assembly comprises a third linear motion component, wherein a first end of the third linear motion component is rotatably mounted on the cylinder section with a smaller inner diameter, and a second end of the third linear motion component is rotatably mounted on the second lifting assembly; The first lifting assembly, the first adjusting assembly and the second adjusting assembly are extended or shortened so that two adjacent cylinder sections have a relative displacement.

2. The lifting device for lifting a wind turbine tower according to claim 1, characterized in that: The tooth groove is arranged upward and the angle between the tooth groove and the inner wall of the cylinder section with a larger inner diameter is an acute angle.

3. The lifting device for lifting a wind turbine tower according to claim 1, characterized in that: A fixing bracket for mounting the first lifting assembly and a first mounting seat for mounting the first adjusting assembly are provided on the outer wall of the cylinder section with a smaller inner diameter, and a second mounting seat for mounting the second lifting assembly is provided on the fixing bracket.

4. The lifting device for lifting a wind turbine tower according to claim 1, characterized in that: The lifting device further comprises a plurality of guide assemblies, wherein the guide assemblies are arranged between two adjacent cylinder sections.

5. The lifting device for lifting a wind turbine tower according to claim 4, characterized in that: The guide assembly includes a support and a guide wheel. The support is arranged on the inner wall of the cylinder segment with a larger inner diameter. The guide wheel is arranged on the support and rolls on the outer wall of the cylinder segment with a smaller inner diameter along the cylinder segment axis.

6. The lifting device for lifting a wind turbine tower according to claim 4, characterized in that: The guide assembly is arranged above the lifting mechanism.

7. The lifting device for lifting a wind power tower according to claim 4, characterized in that: The guide components and lifting mechanisms are evenly distributed along the radial direction of the cylinder section.

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