A crane for a wind turbine

Abstract

The application discloses a hoisting device for a wind turbine of a wind power generation device, which comprises a wind turbine hanging piece, a hoisting assembly and a lifting piece, wherein the wind turbine hanging piece comprises a hanging part arranged on the wind turbine, an axle hole and an arc groove are arranged in the hanging part, the arc groove is arranged with the axle hole as the center, and the lifting piece is arranged on the hanging part; the hoisting assembly comprises a lifting hook and an auxiliary lifting ring, the lifting hook is connected with the lifting piece, the auxiliary lifting ring is arranged on a fan blade of the wind turbine and connected with the lifting piece through a rope; the wind turbine can be lifted by only using one crane, and the falling risk caused by loosening can be avoided.

Description

Technical Field

[0001] This invention relates to the field of wind turbine hoisting technology, and in particular to a wind turbine hoisting device for wind power generation equipment. Background Technology

[0002] Developing renewable energy sources such as wind and solar power is a crucial means to seize the commanding heights of future industries. The use of wind power requires wind turbine equipment, which in turn requires hoisting equipment. Hoisting equipment is used to lift the wind turbine onto the top of the tower, and slings are commonly used for securing it during lifting. Current hoisting methods typically utilize two cranes: one uses a hook to lift one side of the wind turbine's center, playing a primary lifting role, while the other crane lifts one blade to maintain the turbine's horizontal position, gradually releasing it during the lifting process to ensure the turbine is installed vertically. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of the embodiments of the present invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this section, the abstract and title of the invention. Such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0005] Therefore, the technical problem to be solved by the present invention is that the prior art requires the use of two cranes for installation, which is time-consuming and costly.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a wind turbine hoisting device for wind power generation equipment, comprising,

[0007] A fan mounting bracket includes a hanging part disposed on a fan, wherein the hanging part is provided with a shaft hole and an arc groove, the arc groove being disposed with the shaft hole as the center, and a lifting member is provided on the hanging part;

[0008] The suspension assembly includes a lifting hook and an auxiliary lifting ring. The lifting hook is connected to a lifting component, and the auxiliary lifting ring is mounted on the fan blades and connected to the lifting component via a rope.

[0009] As a preferred embodiment of the wind turbine hoisting equipment for wind power generation according to the present invention, the lifting member includes a side plate, a first end shaft and an intermediate shaft, the first end shaft is inserted into the shaft hole, the intermediate shaft is connected to the middle of the side plate, and the intermediate shaft is inserted into the arc groove.

[0010] As a preferred embodiment of the wind turbine hoisting equipment for wind power generation according to the present invention, the lifting member further includes a second end shaft, the second end shaft is connected to the other end of the side plate, and the lifting hook is connected to the second end shaft.

[0011] As a preferred embodiment of the wind turbine hoisting equipment for wind power generation described in this invention, the lifting member is further provided with a horizontal plate, a push rod motor is provided on the horizontal plate, a crossbar is provided at the end of the push rod motor, and one end of the rope is connected to an auxiliary lifting ring and the other end is connected to the crossbar.

[0012] As a preferred embodiment of the wind turbine hoisting equipment for wind power generation according to the present invention, the hoisting part is provided with a first inner circular groove, and the circumferential sidewall of the first inner circular groove is provided with ratchet teeth.

[0013] As a preferred embodiment of the wind turbine hoisting equipment for wind power generation according to the present invention, wherein: a slowing member is provided in the first inner circular groove, a square groove is provided on the outer side of the slowing member, a pawl is connected to the central axis of the square groove, and the pawl is connected to the bottom of the square groove by a first spring.

[0014] As a preferred embodiment of the wind turbine hoisting equipment for wind power generation according to the present invention, wherein: a second inner circular groove is provided on the inner side of the buffer member, and inner circular strips are uniformly arranged on the inner circumference of the second inner circular groove.

[0015] As a preferred embodiment of the wind turbine hoisting equipment for wind power generation according to the present invention, wherein: a fan plate is provided on the first end shaft, the fan plate is disposed in the second inner circular groove, and outer circular strips are uniformly disposed on the outer arc surface of the fan plate.

[0016] As a preferred embodiment of the wind turbine hoisting equipment for wind power generation according to the present invention, a locking block is further provided in the second inner circular groove, and an end shaft is provided on the locking block, the end shaft being embedded in the side groove of the side wall of the second inner circular groove.

[0017] As a preferred embodiment of the wind turbine hoisting device for wind power generation equipment described in this invention, wherein: one end of the clamping block is provided with a round convex surface, one end of the clamping block is provided with a round tip, and a second spring is provided on one side of the round tip of the clamping block to connect to the inner wall of the second inner circular groove.

[0018] The beneficial effects of the present invention are: the present invention can use only one crane to lift the wind turbine, and can avoid the risk of falling due to loosening. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0020] Figure 1 This is a schematic diagram of the overall structure of a wind turbine hoisting device for wind power generation equipment according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the hanging part in a wind turbine hoisting device for wind power generation equipment according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of a damping component in a wind turbine hoisting device for wind power generation equipment, as provided in one embodiment of the present invention. Detailed Implementation

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the present invention will be described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure will be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0026] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0027] Example 1

[0028] Reference Figure 1 and 2This embodiment provides a wind turbine hoisting device for wind power generation equipment, including a wind turbine hanger 100, which includes a hanging part 101 disposed on the wind turbine. The hanging part 101 is provided with a shaft hole 102 and an arc groove 103, with the arc groove 103 centered on the shaft hole 102. A lifting member 104 is disposed on the hanging part 101. A hoisting assembly 200 includes a lifting hook 201 and an auxiliary lifting ring 202. The lifting hook 201 is connected to the lifting member 104. The auxiliary lifting ring 202 is disposed on the wind turbine blade A and is connected to the lifting member 104 through a rope B.

[0029] In this embodiment, the hanging assembly 200 is a component connected to the crane for hoisting. Specifically, it includes a lifting hook 201, which has the main hoisting function, and an auxiliary lifting ring 202, which has an auxiliary stabilizing function. The fan hanger 100 is a part located in the middle of the fan for connecting with the lifting hook 201. Specifically, it mainly includes a hanging part 101 and various auxiliary structures located in the hanging part 101. The function of the auxiliary structures includes preventing the fan from suddenly tilting due to problems with the auxiliary lifting ring 202.

[0030] Furthermore, the hanging part 101 is located on the side of the middle part of the fan, not in the center. This structure is designed so that when there is no other force, the fan lifted by the lifting hook 201 will be in a vertical position, specifically, one of its fan blades will be in a vertical position, which is the position of the fan during installation, making installation easier.

[0031] The auxiliary lifting ring 202 is set on one of the fan blades corresponding to the hanging part 101, that is, on the fan blade that is kept vertical when it is in the installation state. The function of the auxiliary lifting ring 202 is to help keep the fan in a horizontal position when the fan is hoisted from the ground. During the lifting process, the control of the fan blades is gradually removed, so that the fan gradually turns from horizontal to vertical under the action of gravity.

[0032] The lifting component 104 is a component that is connected to both the auxiliary lifting ring 202 and the lifting hook 201. The lifting component 104 can rotate relative to the fan.

[0033] Furthermore, the lifting component 104 includes a side plate 104a, a first end shaft 104b, and an intermediate shaft 104c. The first end shaft 104b passes through the shaft hole 102, and the intermediate shaft 104c is connected to the middle of the side plate 104a and passes through the arc groove 103. The lifting component 104 also includes a second end shaft 104d, which is connected to the other end of the side plate 104a. The lifting hook 201 is connected to the second end shaft 104d. The lifting component 104 is also provided with a horizontal plate 104e, on which a push rod motor 104f is provided. A crossbar 104g is provided at the end of the push rod motor 104f, and one end of the rope B is connected to the auxiliary lifting ring 202 and the other end is connected to the crossbar 104g.

[0034] It should be noted that the first end shaft 104b is used to connect with the shaft hole 102, so that the lifting member 104 can rotate relative to the fan. Since the fan needs to turn from horizontal to vertical during the lifting process, the lifting member 104 is designed to rotate relative to the fan. Furthermore, the central angle corresponding to the arc groove 103 is 90 degrees. The setting of the arc groove 103 restricts the angle at which the lifting member 104 can rotate relative to the fan to within 90 degrees. The reason is that the angle required for the fan to rotate from horizontal to vertical is only 90 degrees. The lifting hook 201 is connected to the second end shaft 104d during the lifting process.

[0035] Rope B connects the auxiliary lifting ring 202 and the crossbar 104g. In this device, the length of rope B, the length of the push rod of the push rod motor 104f, and the distance between the auxiliary lifting ring 202 and the motor of the push rod motor 104f form a triangle. The change in the length of the push rod of the push rod motor 104f will cause the distance between the auxiliary lifting ring 202 and the motor of the push rod motor 104f to change accordingly. As a result, the fan will tilt, and the lifting member 104 will rotate relative to the fan. Due to structural limitations, the fan will eventually tend to be in a vertical state, which is sufficient for portable installation.

[0036] It should be noted that if the fan needs to be in a completely vertical position, the better method is to install an adjustable push rod motor 104f, so that the push rod of the push rod motor 104f can be collinear with the rope B.

[0037] Example 1

[0038] Reference Figures 1-3 This embodiment provides a wind turbine hoisting device for wind power generation equipment, including a wind turbine hanger 100, which includes a hanging part 101 disposed on the wind turbine. The hanging part 101 is provided with a shaft hole 102 and an arc groove 103, with the arc groove 103 centered on the shaft hole 102. A lifting member 104 is disposed on the hanging part 101. A hoisting assembly 200 includes a lifting hook 201 and an auxiliary lifting ring 202. The lifting hook 201 is connected to the lifting member 104. The auxiliary lifting ring 202 is disposed on the wind turbine blade A and is connected to the lifting member 104 through a rope B.

[0039] In this embodiment, the hanging assembly 200 is a component connected to the crane for hoisting. Specifically, it includes a lifting hook 201, which has the main hoisting function, and an auxiliary lifting ring 202, which has an auxiliary stabilizing function. The fan hanger 100 is a part located in the middle of the fan for connecting with the lifting hook 201. Specifically, it mainly includes a hanging part 101 and various auxiliary structures located in the hanging part 101. The function of the auxiliary structures includes preventing the fan from suddenly tilting due to problems with the auxiliary lifting ring 202.

[0040] Furthermore, the hanging part 101 is located on the side of the middle part of the fan, not in the center. This structure is designed so that when there is no other force, the fan lifted by the lifting hook 201 will be in a vertical position, specifically, one of its fan blades will be in a vertical position, which is the position of the fan during installation, making installation easier.

[0041] The auxiliary lifting ring 202 is set on one of the fan blades corresponding to the hanging part 101, that is, on the fan blade that is kept vertical when it is in the installation state. The function of the auxiliary lifting ring 202 is to help keep the fan in a horizontal position when the fan is hoisted from the ground. During the lifting process, the control of the fan blades is gradually removed, so that the fan gradually turns from horizontal to vertical under the action of gravity.

[0042] The lifting component 104 is a component that is connected to both the auxiliary lifting ring 202 and the lifting hook 201. The lifting component 104 can rotate relative to the fan.

[0043] Furthermore, the lifting component 104 includes a side plate 104a, a first end shaft 104b, and an intermediate shaft 104c. The first end shaft 104b passes through the shaft hole 102, and the intermediate shaft 104c is connected to the middle of the side plate 104a and passes through the arc groove 103. The lifting component 104 also includes a second end shaft 104d, which is connected to the other end of the side plate 104a. The lifting hook 201 is connected to the second end shaft 104d. The lifting component 104 is also provided with a horizontal plate 104e, on which a push rod motor 104f is provided. A crossbar 104g is provided at the end of the push rod motor 104f, and one end of the rope B is connected to the auxiliary lifting ring 202 and the other end is connected to the crossbar 104g.

[0044] It should be noted that the first end shaft 104b is used to connect with the shaft hole 102, so that the lifting member 104 can rotate relative to the fan. Since the fan needs to turn from horizontal to vertical during the lifting process, the lifting member 104 is designed to rotate relative to the fan. Furthermore, the central angle corresponding to the arc groove 103 is 90 degrees. The setting of the arc groove 103 restricts the angle at which the lifting member 104 can rotate relative to the fan to within 90 degrees. The reason is that the angle required for the fan to rotate from horizontal to vertical is only 90 degrees. The lifting hook 201 is connected to the second end shaft 104d during the lifting process.

[0045] Rope B connects the auxiliary lifting ring 202 and the crossbar 104g. In this device, the length of rope B, the length of the push rod of the push rod motor 104f, and the distance between the auxiliary lifting ring 202 and the motor of the push rod motor 104f form a triangle. The change in the length of the push rod of the push rod motor 104f will cause the distance between the auxiliary lifting ring 202 and the motor of the push rod motor 104f to change accordingly. As a result, the fan will tilt, and the lifting member 104 will rotate relative to the fan. Due to structural limitations, the fan will eventually tend to be in a vertical state, which is sufficient for portable installation.

[0046] It should be noted that if the fan needs to be in a completely vertical position, the better method is to install an adjustable push rod motor 104f, so that the push rod of the push rod motor 104f can be collinear with the rope B.

[0047] It should be noted that the device is also equipped with a structure to prevent the auxiliary lifting ring 202 from overturning too quickly, thus avoiding dangerous situations. Specifically, the hanging part 101 is provided with a first inner circular groove 101a, and the circumferential sidewall of the first inner circular groove 101a is provided with ratchet teeth 101b. It should be noted that the central axis of the first inner circular groove 101a is collinear with the central axis of the shaft hole 102.

[0048] A deceleration element 105 is provided in the first inner circular groove 101a, and a square groove 105a is provided on the outer side of the deceleration element 105. A pawl 105b is connected to the central shaft of the square groove 105a. The pawl 105b is connected to the bottom of the square groove 105a through a first spring 105c. Under normal circumstances, that is, when the deceleration element 105 rotates slowly relative to the hanging part 101, the first end shaft 104b rotates synchronously with the deceleration element 105 relative to the hanging part 101. The pawl 105b is in the square groove 105a under the action of the spring. However, when the rotation is too fast, under the action of centrifugal force, the pawl 105b expands outward and engages with the ratchet 101b, and the deceleration element 105 no longer rotates relative to the hanging part 101.

[0049] At this point, the first end shaft 104b rotates relative to the deceleration member 105.

[0050] Specifically, a second inner circular groove 105d is provided on the inner side of the slowing component 105, and inner circular strips 105e are evenly provided on the inner circumference of the second inner circular groove 105d; a fan plate 104b-1 is provided on the first end shaft 104b, the fan plate 104b-1 is provided in the second inner circular groove 105d, and outer circular strips 105b-2 are evenly provided on the outer arc surface of the fan plate 104b-1.

[0051] It should be noted that the inner circular bar 105e and the outer circular bar 105b-2 are configured to maintain a large resistance between the deceleration member 105 and the fan plate 104b-1, preventing relative rotation between them. When the deceleration member 105 no longer rotates relative to the hanging part 101, the specific torsional force causes the fan plate 104b-1 to rotate relative to the deceleration member 105. Under the action of resistance, the rotation speed of the fan plate 104b-1 is greatly reduced. In this process, the rapid flipping when the fault occurs is transformed into slow rotation.

[0052] After a brief, slow rotation, the rotation of the fan plate 104b-1 relative to the deceleration member 105 will be stopped. Specifically, a locking block 106 is also provided in the second inner circular groove 105d. The locking block 106 is provided with an end shaft 106a, which is embedded in the side groove of the side wall of the second inner circular groove 105d. It should be noted that the end shaft 106a is a circular shaft structure provided on both sides of the locking block 106, and the side groove is a circular groove structure provided on the side wall of the second inner circular groove 105d. The end shaft 106a is embedded in the side groove to provide flat support for the locking block 106, and the locking block 106 can rotate with the end shaft 106a as the rotation axis. One end of the locking block 106 is provided with a circular convex surface 106b, and one end of the locking block 106 is provided with a circular tip 106c. A second spring 106d is provided on one side of the circular tip 106c of the locking block 106 to connect to the inner wall of the second inner circular groove 105d.

[0053] It should be noted that the overall structure of the locking block 106 is similar to that of a cam. The difference is that the long end, short end, and center of a cam are on the same straight line, while the three parts of the locking block 106—one end of the convex surface 106b, one end of the pointed tip 106c, and the end shaft 106a—form a triangle. This structure causes the fan plate 104b-1 to contact the convex surface 106b after rotating relative to the damping member 105, and causes the locking block 106 as a whole to rotate relative to the end shaft 106a, thus locking the pointed tip 106c into the inner circular bar 105e, thereby stopping the rotation of the fan plate 104b-1.

[0054] It should be noted that lifting ring structures can also be installed on the other two blades of the fan to connect with the crane, so as to assist the fan in not rotating around the vertical axis when it is hoisted.

[0055] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0056] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0057] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A wind turbine hoisting device for wind power generation equipment, characterized in that: include, The fan mounting bracket (100) includes a hanging part (101) disposed on the fan. The hanging part (101) is provided with a shaft hole (102) and an arc groove (103). The arc groove (103) is disposed with the shaft hole (102) as the center. The hanging part (101) is provided with a lifting member (104). The lifting component (104) includes a side plate (104a), a first end shaft (104b) and a middle shaft (104c). The first end shaft (104b) passes through the shaft hole (102), the middle shaft (104c) is connected to the middle of the side plate (104a), and the middle shaft (104c) passes through the arc groove (103). The lifting member (104) also includes a second end shaft (104d), which is connected to the other end of the side plate (104a), and the lifting hook (201) is connected to the second end shaft (104d). The lifting component (104) is also provided with a horizontal plate (104e), a push rod motor (104f) is provided on the horizontal plate (104e), a horizontal bar (104g) is provided at the end of the push rod motor (104f), and one end of the rope (B) is connected to the auxiliary lifting ring (202) and the other end is connected to the horizontal bar (104g). The suspension assembly (200) includes a lifting hook (201) and an auxiliary lifting ring (202). The lifting hook (201) is connected to the lifting member (104), and the auxiliary lifting ring (202) is disposed on the fan blade (A) and connected to the lifting member (104) by a rope (B).

2. The wind turbine hoisting equipment for wind power generation according to claim 1, characterized in that: The hanging part (101) is provided with a first inner circular groove (101a), and the circumferential sidewall of the first inner circular groove (101a) is provided with ratchet teeth (101b); a slowing member (105) is provided in the first inner circular groove (101a), and a square groove (105a) is provided on the outer side of the slowing member (105). A pawl (105b) is axially connected to the square groove (105a), and the pawl (105b) is connected to the square groove (105a) by a first spring (105c). 05a) Bottom connection; a second inner circular groove (105d) is provided on the inner side of the slowing member (105), and inner circular strips (105e) are uniformly provided on the inner wall of the second inner circular groove (105d); a fan plate (104b-1) is provided on the first end shaft (104b), the fan plate (104b-1) is provided in the second inner circular groove (105d), and outer circular strips (105b-2) are uniformly provided on the outer arc surface of the fan plate (104b-1).

3. The wind turbine hoisting equipment for wind power generation according to claim 2, characterized in that: A locking block (106) is also provided in the second inner circular groove (105d). An end shaft (106a) is provided on the locking block (106), and the end shaft (106a) is embedded in the side groove of the side wall of the second inner circular groove (105d). A circular convex surface (106b) is provided at one end of the locking block (106), and a circular tip (106c) is provided at the other end of the locking block (106). A second spring (106d) is provided on one side of the circular tip (106c) of the locking block (106) to connect to the inner wall of the second inner circular groove (105d).

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