Cabin cover moving device for wind turbine generator and operation method of cabin cover moving device

Abstract

The invention provides a cabin cover moving device for a wind turbine generator and an operation method thereof, the cabin cover moving device comprises a plurality of moving devices, and each moving device comprises a jacking mechanism which is fixedly installed in a cabin and comprises an upper stand column and a lower stand column, and the upper stand column is suitable for moving in the lower stand column in the vertical direction; a soft supporting structure is arranged on the top of the upper stand column. The tug mechanism is arranged on one side of the jacking mechanism and comprises a tug frame and tugs, a tug groove is formed in one end of the tug frame, and the tugs are arranged in the tug groove and rotationally connected with the tug frame; when the cabin cover is moved, the upper stand column vertically moves upwards, the soft supporting structure makes contact with the inner wall of the cabin cover, the cabin cover is jacked upwards, the cabin cover is separated from the cabin shell, and an operation space is formed. The tug mechanism is connected with the jacking mechanism, and the end, provided with the tug groove, of the tug frame is arranged above the connecting flange. The upper stand column vertically moves downwards, so that the mounting flange is arranged on the tug; when the cabin cover is pushed, the cabin cover moves along the tug groove along with the tug.

Description

Technical Field

[0001] The present invention belongs to the technical field of wind power generation, and in particular relates to a nacelle cover moving device for a wind turbine generator set and an operating method thereof. Background Art

[0002] With the increasing installed capacity of wind turbines and the increasing service life of wind turbines, wind turbines need to have their components replaced, especially blades. The wind turbine includes a tower fixed to the ground, a nacelle installed on the top of the tower, a hub installed on the nacelle, and blades installed on the hub; the hub is arranged at one end of the nacelle shell, and the blades are connected to the hub outside the nacelle shell.

[0003] Because the blades are heavy and the tower is high, wind turbines usually use large truck cranes to replace blades, while large megawatt high-tower wind turbines require crawler cranes to complete blade replacement, and offshore wind turbines require outrigger boats to replace blades. However, the use of large lifting equipment not only incurs high lifting costs, but is also subject to environmental conditions. Therefore, a tower crane installed on the nacelle is used to replace blades. To install the tower crane, the nacelle cover must first be moved to make room for the tower crane. How to move the nacelle cover without using a large ground crane is an urgent problem to be solved.

[0004] Therefore, it is necessary to provide a nacelle cover moving device for a wind turbine and an operating method thereof, so as to move the nacelle cover without using a large ground crane. Summary of the invention

[0005] The present invention provides a nacelle cover moving device for a wind turbine generator set and an operating method thereof, which can realize stable and reliable movement of the nacelle cover without using a large ground crane.

[0006] To achieve the above object, the present invention provides the following technical solutions.

[0007] A nacelle cover moving device for a wind turbine generator, the nacelle cover is arranged on a nacelle shell to close the nacelle shell, the top edge of the nacelle shell is bent inward to form a connecting flange, the bottom edge of the nacelle cover is bent inward to form a mounting flange, the nacelle cover is fixedly connected to the nacelle shell by mounting bolts passing through the mounting flange and the connecting flange; the nacelle cover comprises a plurality of moving devices arranged on both sides of the nacelle, the moving devices comprising: A lifting mechanism is fixedly installed in the nacelle and used to move the nacelle cover in a vertical direction, comprising an upper column and a lower column, wherein the upper column is suitable for moving in a vertical direction in the lower column; a soft supporting structure is provided on the top of the upper column; A tugboat mechanism is arranged at one side of the jacking mechanism, and is detachably connected to the jacking mechanism, and comprises a tugboat frame and a tugboat, wherein one end of the tugboat frame is provided with a tugboat groove, and the tugboat is arranged in the tugboat groove and is rotatably connected to the tugboat frame; and the other end of the tugboat frame is connected to the lower column; When the nacelle cover is moved, the upper column moves vertically upward, so that the soft support structure contacts the inner wall of the nacelle cover, and the nacelle cover is lifted upward, so that the nacelle cover is separated from the nacelle shell and an operating space is formed; the tugboat mechanism is connected to the lifting mechanism, and one end of the tugboat frame provided with the tugboat groove is arranged above the connecting flange; the upper column moves vertically downward, so that the mounting flange is arranged on the tugboat; the nacelle cover is pushed, and the nacelle cover moves along the tugboat groove with the tugboat.

[0008] Preferably, it also includes a sliding assembly, which includes a slide plate, which is fixed to the bottom surface of the mounting flange, the width of the slide plate matches the width of the tugboat groove, the extension direction of the slide plate coincides with the extension direction of the tugboat groove, the slide plate is arranged above the tugboat, and when the cabin cover is pushed, the cabin cover moves along the tugboat groove with the slide plate.

[0009] Preferably, the sliding assembly also includes a pressure block connecting the skateboard and the mounting flange, the pressure block is provided with a fixing hole and a positioning protrusion, and the positioning protrusion is arranged below the pressure block; the mounting flange is provided with a mounting hole, and the skateboard is provided with a fixing block, the fixing block is matched with the mounting hole, and the fixing block is provided with a threaded hole; when the pressure block connects the skateboard and the mounting flange, the positioning protrusion is inserted into the mounting hole, the fixing hole and the threaded hole are arranged correspondingly, and the skateboard and the mounting flange are locked and fixed by fasteners passing through the fixing hole and screwed into the threaded hole.

[0010] Preferably, the lower column comprises a lower column body, a lifting drive structure and a connecting column body which are connected in sequence, the connecting column body is a hollow structure, the upper column is inserted into the connecting column body and connected to the lifting drive structure, and the lifting drive structure drives the upper column to move along the vertical direction of the connecting column body.

[0011] Preferably, the lower column is arranged in a lower fixed seat, the bottom end of the lower column is connected to the fixed seat via a pin shaft, the fixed seat is connected to a movable driving structure, and the movable driving structure drives the lower column to move along the pin shaft in the fixed seat.

[0012] Preferably, the mobile device also includes a first anti-overturning component, which includes a first wheel group, which is arranged on a side of the inner wall of the tugboat groove close to the cabin, and the first wheel group is located above the mounting flange or the slide.

[0013] Preferably, the mobile device further comprises a second anti-overturning assembly, the second anti-overturning assembly comprises a second wheel set, the second wheel set is arranged on the side of the inner wall of the tugboat groove away from the cabin, and the second wheel set is located above the slide plate.

[0014] Preferably, the soft support structure comprises a lifting seat and a soft gasket arranged on the top of the lifting seat, and a universal ball joint is arranged on the top of the upper column, and the universal ball joint is hinged to the lifting seat.

[0015] Based on the same concept, the present invention also provides an operating method for the above-mentioned nacelle cover moving device for a wind turbine generator, comprising the following steps: Providing a jacking mechanism, and fixing the jacking mechanism at set positions on both sides of the cabin; Operating the lifting drive structure to drive the upper column to move vertically upward, so that the soft support structure contacts the inner wall of the nacelle cover, and the nacelle cover is lifted upward, so that the nacelle cover is separated from the nacelle shell and an operating space is reserved; Providing a tugboat mechanism, installing the tugboat mechanism on a side of the jacking mechanism close to the nacelle cover, and making one end of the tugboat frame provided with the tugboat groove be arranged above the connecting flange; Operating the lifting drive structure to drive the upper column to move vertically downward so that the mounting flange is disposed on the tugboat, and at this time, the soft support structure is separated from the nacelle cover; Providing a first anti-overturning assembly, fixing a first wheel assembly to a side of the inner wall of the tugboat tank close to the cabin, and positioning the first wheel assembly above the mounting flange; The nacelle cover is pushed so that the nacelle cover moves along the tugboat groove along with the tugboat.

[0016] Preferably, the bottom edge of the nacelle cover is arc-shaped; a slide plate is fixed to the bottom surface of the mounting flange, and after the tug mechanism is installed, the following steps are further included: Providing a second anti-overturning assembly, fixing the second wheel set to a side of the inner wall of the tugboat groove away from the engine room, and leaving a space for installing the slide plate between the first wheel set and the tugboat; Operate the lifting drive structure to drive the upper column to move vertically downward, so that the mounting flange is arranged above the tugboat, and a space for mounting the slide plate is reserved between the mounting flange and the tugboat; Providing a sliding assembly to set the slide plate on the bottom surface of the mounting flange, and fixing the slide plate to the mounting flange by a pressing block and a fastener; Operating the lifting drive structure to drive the upper column to move vertically downward, so that the slide plate is set on the tugboat, and the soft support structure is separated from the nacelle cover; Providing a first anti-overturning assembly, fixing a first wheel set to a side of the inner wall of the tugboat tank close to the cabin, and positioning the first wheel set above the slide plate; The nacelle cover is pushed so that the nacelle cover moves along the tugboat groove along with the slide plate.

[0017] Compared with the prior art, the technical solution of the embodiment of the present invention has beneficial effects.

[0018] For example, the present invention is provided with multiple groups of moving devices, the moving devices include a lifting mechanism and a tugboat mechanism, the lifting mechanism is used to realize the vertical movement of the nacelle cover, when the nacelle cover is separated from the nacelle shell, the tugboat mechanism is installed, the mounting flange is set on the tugboat mechanism, and the nacelle cover is driven to move by the rotation of the tugboat; the movement of the nacelle cover is realized without using a large ground crane; For another example, the present invention provides a slide plate assembly. When the shape of the nacelle cover is irregular and the edge is arranged in an arc shape, a slide plate is arranged on the bottom surface of the mounting flange to convert the arc shape into a straight shape of the slide plate, which is conducive to the nacelle cover moving along a straight line, and the movement is more stable and reliable; For another example, the present invention provides an anti-overturning assembly to prevent the nacelle cover from overturning, making the movement more stable and reliable; For another example, the present invention sets a soft support structure at the top of the jacking mechanism to achieve soft support with the inner wall of the cabin cover, thereby reducing the impact on the inner surface of the cabin cover; the top universal ball joint of the jacking mechanism is connected to the soft support structure, and when the inner surface of the cabin cover is curved, the angle of the soft support structure can be adaptively adjusted to avoid the formation of stress concentration points on the inner surface of the cabin cover and causing damage to the cabin cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a structural schematic diagram of a cabin in an embodiment of the present invention; Figure 2 is a schematic diagram of the connection between the cabin shell and the cabin cover in an embodiment of the present invention; Figure 3 is a schematic diagram of the separation of the cabin shell and the cabin cover in an embodiment of the present invention; Figure 4 is a schematic diagram of multiple mobile devices being arranged in a cabin in an embodiment of the present invention; Figure 5 is a schematic diagram of the structure of a mobile device in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the lifting mechanism in an embodiment of the present invention; Figure 7 2 is a schematic diagram of the structure of a tugboat mechanism in an embodiment of the present invention; Figure 8 Schematic diagram of the connection between the mounting flange and the slide plate of the nacelle cover in an embodiment of the present invention; Fig. 9 is a schematic diagram of a mounting flange of a slide plate mounted to a nacelle cover in an embodiment of the present invention; Fig.10 is a schematic diagram of a nacelle cover arranged on a tugboat in an embodiment of the present invention; Fig.11 is a side view of a nacelle cover arranged on a tugboat in an embodiment of the present invention; Fig.12 is a schematic diagram of a nacelle cover with a slide plate installed on a tugboat in an embodiment of the present invention; Fig.13 is a side view of a nacelle cover with a slide installed on a tugboat in an embodiment of the present invention; Fig.14 2 is a schematic diagram showing the installation of a nacelle cover moving device for a wind turbine generator system according to an embodiment of the present invention; Fig.15 It is a schematic diagram of the use of the nacelle cover moving device for a wind turbine generator system according to an embodiment of the present invention.

[0020] Description of reference numerals: 1-cabin cover; 11-mounting flange; 111-mounting hole; 12-rain guide groove; 2-cabin shell; 21-connecting flange; 3-lifting mechanism; 31-upper column; 311-universal ball joint; 32-lower column; 321-lower column; 322-lifting drive structure; 323-connecting column; 33-soft support structure; 331-lifting seat; 332-soft gasket; 34-lower fixed seat; 341-pin shaft; 4-tugboat mechanism; 41-tugboat frame; 411-tugboat slot; 42-tugboat; 5-sliding assembly; 51-slide plate; 511-fixing block; 512-threaded hole; 52-pressing block; 521-fixing hole; 522-positioning protrusion; 53-fastener; 6-first anti-overturning assembly; 61-first wheel set; 7 - second anti-rollover assembly; 71 - second wheel set. DETAILED DESCRIPTION

[0021] In order to make the purpose, features and beneficial effects of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It is understood that the specific embodiments described below are only used to explain the present invention, rather than to limit the present invention. In addition, the same or similar reference numerals may be used in the figures to refer to the same or similar elements in different embodiments, and the description of the same or similar elements in different embodiments and the description of the prior art elements, features, effects, etc. may be omitted.

[0022] Reference Figures 1 to 3 The cabin cover 1 is arranged on the cabin shell 2 to close the cabin shell 2, the top edge of the cabin shell 2 is bent inward to form a connecting flange 21, and the bottom edge of the cabin cover 1 is bent inward to form a mounting flange 11, and the cabin cover 1 and the cabin shell 2 are fixedly connected by mounting bolts passing through the mounting flange 11 and the connecting flange 21.

[0023] Reference Figures 4 to 15 , an embodiment of the present invention provides a nacelle cover moving device for a wind turbine generator set.

[0024] Specifically, the nacelle cover moving device for a wind turbine generator system comprises a plurality of moving devices arranged on both sides of the nacelle, and the moving devices comprise: The lifting mechanism 3 is fixedly installed in the nacelle and used to move the nacelle cover 1 in the vertical direction. The lifting mechanism 3 includes an upper column 31 and a lower column 32. The upper column 31 is suitable for moving in the lower column 32 along the vertical direction. A soft support structure 33 is provided on the top of the upper column 31. The tugboat mechanism 4 is arranged at one side of the jacking mechanism 3 and is detachably connected to the jacking mechanism 3, and comprises a tugboat frame 41 and a tugboat 42. A tugboat groove 411 is arranged at one end of the tugboat frame 41. The tugboat 42 is arranged in the tugboat groove 411 and is rotatably connected to the tugboat frame 41. The other end of the tugboat frame 41 is connected to the lower column 32. When the nacelle cover 1 is moved, the upper column 31 moves vertically upward, so that the soft support structure 33 contacts the inner wall of the nacelle cover 1, and lifts the nacelle cover 1 upward, so that the nacelle cover 1 is separated from the nacelle shell 2 and an operating space is formed; the tugboat mechanism 4 is connected to the lifting mechanism 3, and one end of the tugboat frame 41 provided with a tugboat groove 411 is arranged above the connecting flange 21; the upper column 31 moves vertically downward, so that the mounting flange 11 is arranged on the tugboat 42; the nacelle cover 1 is pushed, and the nacelle cover 1 moves along the tugboat groove 411 with the tugboat 42.

[0025] Specifically, the tugboat 42 is arranged perpendicular to the extension direction of the tugboat groove 411, and both ends of the tugboat 42 are rotatably connected to the side walls of the tugboat groove 411 respectively; the extension direction of the tugboat groove 411 is consistent with the length direction of the cabin shell 2, and the cabin cover 1 moves along the length direction of the cabin shell 2.

[0026] In some embodiments, the lower column 32 includes a lower column 321, a lifting drive structure 322 and a connecting column 323 connected in sequence. The connecting column 323 is a hollow structure. The upper column 31 is inserted into the connecting column 323 to connect to the lifting drive structure 322. The lifting drive structure 322 drives the upper column 31 to move in the vertical direction along the connecting column 323.

[0027] Specifically, the lifting drive structure 322 is provided with a driving handle, and the upper column 31 can be vertically moved relative to the lower column 32 by shaking the handle. The lifting drive structure 322 can be driven by a turbine screw or a hydraulic cylinder, or other similar mechanisms that can achieve this function, which is not limited here.

[0028] In some embodiments, the lower column 32 is disposed in the lower fixed seat 34, the bottom end of the lower column 321 is connected to the fixed seat 34 via a pin shaft 341, and the fixed seat 34 is connected to a movable driving structure (not shown), which drives the lower column 321 to move along the pin shaft 341 in the fixed seat 34.

[0029] Specifically, the mobile driving structure can be driven by a worm screw or a hydraulic cylinder, or a similar mechanism that can achieve this function, which is not limited here.

[0030] Specifically, in some embodiments, a rain guide groove 12 is provided at the front end of the nacelle cover 1. When the blades are connected to the hub, the junction of the blades and the nacelle cover extends to the rain guide groove 12. When the nacelle cover 1 is lifted upward, the nacelle cover 1 is separated from the nacelle shell 2. Due to the obstruction of the junction of the blades and the nacelle cover 1, sufficient operating space cannot be formed between the nacelle cover 1 and the nacelle shell 2; therefore, the nacelle cover 1 is lifted upward so that the nacelle cover 1 and the nacelle shell 2 are separated by a small height; the mobile driving structure is operated to drive the lower column 321 to move along the pin shaft 341 in the fixed seat 34, so that the lifting mechanism 3 drives the nacelle cover 1 to move along the length direction to avoid the obstruction of the junction of the blades and the nacelle cover 1; and the nacelle cover 1 is further lifted so that sufficient operating space is formed between the nacelle cover 1 and the nacelle shell 2.

[0031] In some embodiments, the mobile device also includes a first anti-overturning component 6, which includes a first wheel group 61. The first wheel group 61 is arranged on the inner wall of the tugboat groove 411 on the side close to the cabin. The first wheel group 61 is located on the mounting flange 11 or above the slide plate 51, and guides and prevents the cabin cover 1 from overturning when the cabin cover 1 moves.

[0032] In some embodiments, the mobile device also includes a second anti-overturning component 7, which includes a second wheel group 71. The second wheel group 71 is arranged on the inner wall of the tugboat groove 411 away from the side of the cabin. The second wheel group 71 is located above the slide plate 51 to guide and prevent the cabin cover 1 from overturning when the cabin cover 1 moves.

[0033] In some embodiments, the soft support structure 33 includes a lifting seat 331 and a soft gasket 332 arranged on the top of the lifting seat 331 , and a universal ball joint 311 is arranged on the top of the upper column 31 , and the universal ball joint 311 is hinged to the lifting seat 331 .

[0034] Specifically, the cabin cover 1 is made of fiberglass, and the soft gasket 332 realizes soft support with the inner wall of the cabin cover 1, reducing the impact on the inner surface of the cabin cover 1; the universal ball joint 311 is connected to the soft support structure 33, and when the inner surface of the cabin cover 1 is curved, the angle of the soft support structure 33 can be adaptively adjusted to avoid the formation of stress concentration points on the inner surface of the cabin cover 1 to cause damage to the cabin cover 1.

[0035] In some embodiments, a sliding assembly 5 is also included, and the sliding assembly 5 includes a slide plate 51. The slide plate 51 is fixed to the bottom surface of the mounting flange 11, and the width of the slide plate 51 matches the width of the tugboat groove 411. The extension direction of the slide plate 51 coincides with the extension direction of the tugboat groove 411. The slide plate 51 is arranged above the tugboat 42. When the cabin cover 1 is pushed, the cabin cover 1 moves along the tugboat groove 411 with the slide plate 51.

[0036] Specifically, in some embodiments, the bottom edge of the nacelle cover 1 is arc-shaped, so that the mounting flange 11 is arc-shaped, and the mounting flange 11 is directly set on the tugboat 42. If the width of the tugboat groove 411 is small, it cannot adapt to the position change of the arc-shaped mounting flange 11 in the width direction. If the width of the tugboat groove 411 is large, the movable range of the mounting flange 11 in the width direction is large, and it cannot ensure that the nacelle cover 1 moves in a straight line, resulting in a shift in the center of gravity and affecting the stability of the movement. Therefore, a sliding component 5 is provided to convert the arc shape of the mounting flange 11 into a straight line of the slide plate 51, which is conducive to the movement of the nacelle cover 1 in a straight line, and the movement is more stable and reliable.

[0037] In some embodiments, the sliding assembly 5 also includes a pressure block 52 connecting the skateboard 51 and the mounting flange 11, the pressure block 52 is provided with a fixing hole 521 and a positioning protrusion 522, and the positioning protrusion 522 is arranged below the pressure block 52; the mounting flange 11 is provided with a mounting hole 111, and the skateboard 51 is provided with a fixing block 511, the fixing block 511 is matched with the mounting hole 111, and the fixing block 511 is provided with a threaded hole 512; when the pressure block 52 connects the skateboard 51 and the mounting flange 11, the positioning protrusion 522 is inserted into the mounting hole 111, the fixing hole 521 and the threaded hole 512 are arranged correspondingly, and the skateboard 51 and the mounting flange 11 are locked and fixed by a fastener 53 that passes through the fixing hole 521 and is screwed into the threaded hole 512.

[0038] Specifically, the fixing hole 521 is a long waist-shaped hole, and when there is a slight deviation between the positions of the fixing hole 521 and the threaded hole 512 , the fixing hole 521 can be adaptively adjusted; the fastener 53 is a screw.

[0039] The present invention also provides an operating method for the above-mentioned nacelle cover moving device for a wind turbine generator set, comprising the following steps: Providing a jacking mechanism 3, and fixing the jacking mechanism 3 at set positions on both sides of the cabin; Operate the lifting drive structure 322 to drive the upper column 31 to move vertically upward, so that the soft support structure 33 contacts the inner wall of the nacelle cover 1, and lift the nacelle cover 1 upward, so that the nacelle cover 1 is separated from the nacelle shell 2 and an operating space is reserved; Provide a tugboat mechanism 4, install the tugboat mechanism 4 on a side of the jacking mechanism 3 close to the nacelle cover 1, and make one end of the tugboat frame 41 provided with a tugboat groove 411 be arranged above the connecting flange 21; Operate the lifting drive structure 322 to drive the upper column 31 to move vertically downward, so that the mounting flange 11 is set on the tugboat 42, and the soft support structure 33 is separated from the nacelle cover 1; Provide a first anti-overturning assembly 6, fix the first wheel set 61 to the inner wall of the tugboat groove 411 close to the side of the cabin, and make the first wheel set 61 located above the mounting flange 11; The nacelle cover 1 is pushed so that the nacelle cover 1 moves along the tugboat groove 411 along with the tugboat 42 .

[0040] In some embodiments, the bottom edge of the nacelle cover 1 is arc-shaped; a slide plate 51 is fixed to the bottom surface of the mounting flange 11, and after the tug mechanism 4 is installed, the following steps are also included: A second anti-overturning assembly 7 is provided, and the second wheel set 71 is fixed to the inner wall of the tugboat groove 411 away from the side of the engine room, and a space for installing the slide plate 51 is reserved between the first wheel set 61 and the tugboat 42; The lifting drive structure 322 is operated to drive the upper column 31 to move vertically downward, so that the mounting flange 11 is arranged above the tugboat 42, and a space for mounting the slide plate 51 is reserved between the mounting flange 11 and the tugboat 42; Provide a sliding assembly 5 to set a sliding plate 51 on the bottom surface of the mounting flange 11, and fix the sliding plate 51 to the mounting flange 11 through a pressing block 52 and a fastener 53; The lifting drive structure 322 is operated to drive the upper column 31 to move vertically downward, so that the slide plate 51 is set on the tugboat 42, and the soft support structure 33 is separated from the nacelle cover 1; Provide a first anti-overturning assembly 6, fix the first wheel set 61 to the inner wall of the tugboat groove 411 close to the side of the cabin, and make the first wheel set 411 located above the slide plate 51; The nacelle cover 1 is pushed so that the nacelle cover 1 moves along the tugboat groove 411 along with the slide plate 51 .

[0041] In summary, the nacelle cover moving device for a wind turbine and the operating method thereof provided by the present invention are provided with multiple groups of moving devices, the moving devices including a lifting mechanism 3 and a tug mechanism 4, the nacelle cover 1 is moved in the vertical direction by the lifting mechanism 3, when the nacelle cover 1 is separated from the nacelle shell 2, the tug mechanism 4 is installed, the mounting flange 11 is arranged on the tug mechanism 4, and the nacelle cover 1 is driven to move by the rotation of the tug 42; the movement of the nacelle cover 1 is achieved without using a large ground crane; For another example, the present invention provides a slide plate assembly 5. When the shape of the nacelle cover 1 is irregular and the edge is arranged in an arc shape, a slide plate 51 is arranged on the bottom surface of the mounting flange 11 to convert the arc shape into a straight line shape of the slide plate 51, which is conducive to the nacelle cover 1 moving along a straight line, and the movement is more stable and reliable; For another example, the present invention provides an anti-overturning assembly to prevent the nacelle cover 1 from overturning, making the movement more stable and reliable; For another example, the present invention sets a soft support structure 33 at the top of the jacking mechanism 3 to achieve soft support with the inner wall of the cabin cover 1, thereby reducing the impact on the inner surface of the cabin cover 1; the top universal ball joint 311 of the jacking mechanism 3 is connected to the soft support structure 33, and when the inner surface of the cabin cover 1 is arc-shaped, the angle of the soft support structure 33 can be adaptively adjusted to avoid the formation of stress concentration points on the inner surface of the cabin cover 1 to cause damage to the cabin cover 1.

[0042] Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the present disclosure, even when only a single embodiment is described with respect to specific features. The feature examples provided in the present disclosure are intended to be illustrative rather than limiting, unless otherwise stated. In specific implementations, the technical features of one or more dependent claims may be combined with the technical features of the independent claim, based on actual needs and where technically feasible, and may be derived from the technical features of the corresponding independent claim in any appropriate manner rather than simply through the specific combination listed in the claims.

Claims

1. A nacelle cover moving device for a wind turbine generator set, wherein the nacelle cover is arranged on a nacelle shell to close the nacelle shell, the top edge of the nacelle shell is bent inwardly to form a connecting flange, the bottom edge of the nacelle cover is bent inwardly to form a mounting flange, the nacelle cover is fixedly connected to the nacelle shell by mounting bolts passing through the mounting flange and the connecting flange; characterized in that: The invention comprises a plurality of moving devices arranged on both sides of the cabin, wherein the moving devices include: A lifting mechanism is fixedly installed in the nacelle and used to move the nacelle cover in a vertical direction, comprising an upper column and a lower column, wherein the upper column is suitable for moving in a vertical direction in the lower column; a soft supporting structure is provided on the top of the upper column; A tugboat mechanism is arranged at one side of the jacking mechanism, and is detachably connected to the jacking mechanism, and comprises a tugboat frame and a tugboat, wherein one end of the tugboat frame is provided with a tugboat groove, and the tugboat is arranged in the tugboat groove and is rotatably connected to the tugboat frame; and the other end of the tugboat frame is connected to the lower column; When the nacelle cover is moved, the upper column moves vertically upward, so that the soft support structure contacts the inner wall of the nacelle cover, and the nacelle cover is lifted upward, so that the nacelle cover is separated from the nacelle shell and an operating space is formed; the tugboat mechanism is connected to the lifting mechanism, and one end of the tugboat frame provided with the tugboat groove is arranged above the connecting flange; the upper column moves vertically downward, so that the mounting flange is arranged on the tugboat; the nacelle cover is pushed, and the nacelle cover moves along the tugboat groove with the tugboat.

2. The nacelle cover moving device for a wind turbine according to claim 1, characterized in that: It also includes a sliding assembly, which includes a slide plate, which is fixed to the bottom surface of the mounting flange, the width of the slide plate matches the width of the tugboat groove, the extension direction of the slide plate coincides with the extension direction of the tugboat groove, the slide plate is arranged above the tugboat, and when the cabin cover is pushed, the cabin cover moves along the tugboat groove with the slide plate.

3. The nacelle cover moving device for a wind turbine according to claim 2, characterized in that: The sliding assembly also includes a pressure block connecting the slide plate and the mounting flange, the pressure block is provided with a fixing hole and a positioning protrusion, and the positioning protrusion is arranged below the pressure block; the mounting flange is provided with a mounting hole, and the slide plate is provided with a fixing block, the fixing block is matched with the mounting hole, and the fixing block is provided with a threaded hole; when the pressure block connects the slide plate and the mounting flange, the positioning protrusion is inserted into the mounting hole, the fixing hole and the threaded hole are arranged correspondingly, and the slide plate and the mounting flange are locked and fixed by fasteners passing through the fixing hole and screwed into the threaded hole.

4. The nacelle cover moving device for a wind turbine according to claim 1, characterized in that: The lower column includes a lower column body, a lifting drive structure and a connecting column body which are connected in sequence. The connecting column body is a hollow structure. The upper column is inserted into the connecting column body and connected to the lifting drive structure. The lifting drive structure drives the upper column to move along the vertical direction of the connecting column body.

5. The nacelle cover moving device for a wind turbine according to claim 4, characterized in that: The lower column is arranged in a lower fixed seat, the bottom end of the lower column is connected to the fixed seat via a pin shaft, the fixed seat is connected with a moving drive structure, and the moving drive structure drives the lower column to move along the pin shaft in the fixed seat.

6. The nacelle cover moving device for a wind turbine according to claim 1, characterized in that: The mobile device also includes a first anti-overturning component, which includes a first wheel group. The first wheel group is arranged on a side of the inner wall of the tugboat groove close to the cabin, and the first wheel group is located above the mounting flange.

7. The nacelle cover moving device for a wind turbine according to claim 2, characterized in that: The mobile device also includes a second anti-overturning component, which includes a second wheel group. The second wheel group is arranged on the inner wall of the tugboat groove away from the cabin, and the second wheel group is located above the slide plate.

8. The nacelle cover moving device for a wind turbine according to claim 1, characterized in that: The soft support structure comprises a lifting seat and a soft gasket arranged on the top of the lifting seat. A universal ball joint is arranged on the top of the upper column, and the universal ball joint is hinged to the lifting seat.

9. An operating method for a nacelle cover moving device for a wind turbine generator set according to any one of claims 1 to 8, characterized in that: The steps include: Providing a jacking mechanism, and fixing the jacking mechanism at set positions on both sides of the cabin; Operating the lifting drive structure to drive the upper column to move vertically upward, so that the soft support structure contacts the inner wall of the nacelle cover, and the nacelle cover is lifted upward, so that the nacelle cover is separated from the nacelle shell and an operating space is reserved; Providing a tugboat mechanism, installing the tugboat mechanism on a side of the jacking mechanism close to the nacelle cover, and making one end of the tugboat frame provided with the tugboat groove be arranged above the connecting flange; Operating the lifting drive structure to drive the upper column to move vertically downward so that the mounting flange is disposed on the tugboat, and at this time, the soft support structure is separated from the nacelle cover; Providing a first anti-overturning assembly, fixing a first wheel assembly to a side of the inner wall of the tugboat tank close to the cabin, and positioning the first wheel assembly above the mounting flange; The nacelle cover is pushed so that the nacelle cover moves along the tugboat groove along with the tugboat.

10. The method for operating the nacelle cover moving device for a wind turbine according to claim 9, characterized in that: The bottom edge of the nacelle cover is arc-shaped; a slide plate is fixed to the bottom surface of the mounting flange, and after the tug mechanism is installed, the following steps are also included: Providing a second anti-overturning assembly, fixing the second wheel set to a side of the inner wall of the tugboat groove away from the engine room, and leaving a space for installing the slide plate between the first wheel set and the tugboat; Operate the lifting drive structure to drive the upper column to move vertically downward, so that the mounting flange is arranged above the tugboat, and a space for mounting the slide plate is reserved between the mounting flange and the tugboat; Providing a sliding assembly to set the slide plate on the bottom surface of the mounting flange, and fixing the slide plate to the mounting flange by a pressing block and a fastener; Operating the lifting drive structure to drive the upper column to move vertically downward, so that the slide plate is set on the tugboat, and the soft support structure is separated from the nacelle cover; Providing a first anti-overturning assembly, fixing a first wheel set to a side of the inner wall of the tugboat tank close to the cabin, and positioning the first wheel set above the slide plate; The nacelle cover is pushed so that the nacelle cover moves along the tugboat groove along with the slide plate.

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