A wind turbine tower maintenance suspension device

Abstract

The utility model discloses a wind generating set tower drum overhauling suspension device, including support ring rail, rotary suspension seat and drive assembly, support ring rail is used for fixing the support of sleeve package on the tower drum, and rotary suspension seat includes the groove seat and support wheel group, and the groove seat is annular or arc structure, and the both sides wall of groove seat inside is installed with multiple sets of support wheel group, and support wheel group rotary clamping support ring rail, and the lower end of the lateral wall outside groove seat is fixedly connected with the suspension ring, and the downside fixed mounting of suspension ring has a plurality of lifting rings, and drive assembly installs on the groove seat, and drive assembly is connected with support ring rail transmission to drive rotary suspension seat rotation. Through installing support ring rail on the tower drum, installing rotary suspension seat on support ring rail, the lower part of rotary suspension seat is installed with a plurality of lifting rings, and the cable of "spiderman" or the steel wire rope of the basket is connected through the lifting ring, so that when checking and maintaining the tower drum outer wall, can conveniently move position around the tower drum rotation.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary tools for the maintenance of wind turbine towers, and in particular to a suspension device for the maintenance of wind turbine towers. Background Technology

[0002] The tower of a wind turbine generator set supports the wind turbine and its blades. After installation and during regular maintenance, the outer wall of the tower needs to be inspected and maintained. During inspection, it is necessary to check for cracks, peeling, powdering, and corrosion in the outer coating. If any of these issues are found, the outer wall of the tower needs to be repaired and maintained.

[0003] Due to the considerable height of the tower, current inspections and maintenance of the tower's outer wall are sometimes carried out using cables in a "spider-man" style. However, this method only allows for vertical inspection and maintenance from top to bottom, preventing convenient rotation around the tower. Alternatively, a suspended platform can be used, but similarly, this also limits inspection and maintenance to a vertical, top-to-bottom approach, hindering movement around the tower. To address these issues, we propose a suspension device for wind turbine tower maintenance, as described in this application. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a wind turbine tower maintenance suspension device by installing a support ring rail on the tower, installing a rotating suspension seat on the support ring rail, and installing multiple lifting rings on the lower part of the rotating suspension seat. The lifting rings are connected to the cable of the "spiderman" or the wire rope of the basket, so that the device can be easily moved around the tower when inspecting and maintaining the outer wall of the tower.

[0005] To achieve the above-mentioned technical features, the purpose of this utility model is as follows: A wind turbine tower maintenance suspension device includes a support ring rail, a rotating suspension seat, and a drive assembly. The support ring rail is used to fix and support the tower. The rotating suspension seat includes a grooved seat and a support wheel set. The grooved seat has an annular or arc-shaped structure. Multiple sets of support wheel sets are installed on the two inner side walls of the grooved seat. The support wheel sets rotate and clamp the support ring rail. A suspension ring is fixedly connected to the lower end of the outer side wall of the grooved seat. Multiple lifting rings are fixedly installed on the lower side of the suspension ring. The drive assembly is installed on the grooved seat and is connected to the support ring rail to drive the rotating suspension seat to rotate.

[0006] The supporting ring rail includes a track and a support rod. The support rod is located on the lower side of the track. One end of the support rod is fixed to the track, and the other end is used to fix to the tower. The track is circular.

[0007] The track has a C-shaped structure with the opening facing downwards. Multiple connecting plates are fixed to the opening of the C-shaped structure, and the support rod is installed and fixed to the connecting plates.

[0008] The support rod is fixed to a mounting plate at one end where it connects to the connecting plate. The mounting plate is fixed to the connecting plate by screws.

[0009] Multiple support wheel sets clamp the support ring rail from the upper and lower sides.

[0010] The support wheel assembly includes an axle, a bearing, and a single-sided track wheel. The single-sided track wheel is mounted on the axle via the bearing, and the axle is fixedly installed to the grooved seat.

[0011] The end of the wheel axle connected to the grooved seat is provided with a screw section. The screw section passes through the hole on the grooved seat and is then screwed on and fixed with a nut.

[0012] The drive assembly includes a geared motor, which is mounted on the top of the slotted seat. The output shaft of the geared motor extends into the slotted seat and is fitted with a gear. A gear ring is mounted on the top of the support ring rail, and the gear meshes with the gear ring for transmission.

[0013] A power supply device is also installed between the slotted seat and the supporting ring rail. The power supply device includes a sliding contact line and a current collector. The sliding contact line is ring-shaped and installed on the top of the supporting ring rail. The current collector is installed on the top inside the slotted seat. The current collector and the sliding contact line are elastically supported and slidably connected. The current collector is electrically connected to the drive assembly. The sliding contact line is used for electrical connection with the power supply.

[0014] A protective cover is installed on the slotted seat on the outside of the geared motor.

[0015] The features of this utility model using the above-mentioned technical solution are:

[0016] 1. The support ring rail of this utility model is used to be installed at the upper end of the uppermost tower section. The rotating suspension seat is rotatably installed on the support ring rail. The drive component is installed on the rotating suspension seat and is connected to the support ring rail for transmission, so as to drive the rotating suspension seat to rotate around the support ring rail. Multiple lifting rings are installed at the lower part of the rotating suspension seat. The lifting rings are connected to the "spiderman's" cable or the steel wire rope of the basket, so that the position can be easily moved around the tower when inspecting and maintaining the outer wall of the tower.

[0017] 2. A power supply device is also installed between the grooved seat and the support ring rail of this utility model, so as to conveniently supply power to the geared motor. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0019] Figure 1 This is a schematic diagram of the installation position of this utility model.

[0020] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of the supporting ring track in this utility model.

[0022] Figure 4 This is a three-dimensional structural diagram of the supporting ring rail from the bottom view in this utility model.

[0023] Figure 5 for Figure 2 Schematic diagram of the cross-sectional structure at point AA.

[0024] Figure 6 for Figure 2 Schematic diagram of the cross-sectional structure at point BB.

[0025] Figure 7 for Figure 6 Enlarged structural diagram at point C.

[0026] Figure 8 This invention relates to the interference determination of the supporting ring rail, rotating suspension seat, drive assembly, and power supply device.

[0027] Figure label:

[0028] Tower 1;

[0029] Support ring rail 100, track 110, connecting plate 111, support rod 120, mounting plate 121, gear ring 130, extension seat 140;

[0030] Rotary suspension seat 200, protective cover 201, groove seat 210, suspension ring 211, lifting ring 212, support wheel set 220, wheel axle 221, bearing 222, single-sided track wheel 223, first retaining ring 224, second retaining ring 225, nut 226, snap ring 227.

[0031] Drive component 300, geared motor 310, gear 320;

[0032] Power supply device 400, sliding contact line 410, current collector 420, cable 430. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0035] Example 1:

[0036] See Figure 2-8 A wind turbine tower maintenance suspension device includes a support ring rail 100, a rotating suspension seat 200, and a drive assembly 300. The support ring rail 100 is used to fix and support the tower 1. The rotating suspension seat 200 includes a grooved seat 210 and a set of support wheels 220. The grooved seat 210 has an annular or arc-shaped structure. Multiple sets of support wheels 220 are installed on the two side walls inside the grooved seat 210. The support wheels 220 rotate and clamp the support ring rail 100. A suspension ring 211 is fixedly connected to the lower end of the outer side wall of the grooved seat 210. Multiple lifting rings 212 are fixedly installed on the lower side of the suspension ring 211. The drive assembly 300 is installed on the grooved seat 210 and is connected to the support ring rail 100 to drive the rotating suspension seat 200 to rotate.

[0037] See Figure 1 The support ring rail 100 is used to install on the upper end of the uppermost tower section of the tower 1. The rotating suspension seat 200 is rotatably installed on the support ring rail 100. The drive assembly 300 is installed on the rotating suspension seat 200 and is connected to the support ring rail 100 to drive the rotating suspension seat 200 to rotate around the support ring rail 100. Multiple lifting rings 212 are installed on the lower part of the rotating suspension seat 200. The lifting rings 212 are connected to the "spiderman's" cable or the wire rope of the basket, so that the position can be easily moved around the tower 1 when inspecting and maintaining the outer wall of the tower 1.

[0038] In one embodiment, the slotted seat 210 has an arc-shaped structure, for example... Figure 2 The structure of a quarter circle.

[0039] In this embodiment, see Figure 2 , 3 4. The grooved seat 210 has a ring structure. The grooved seat 210 can shield the internal support ring rail 100 and support wheel assembly 220, thus achieving the effect of rainproof and dustproof.

[0040] See Figure 3 The support ring rail 100 includes a track 110 and a support rod 120. The track 110 is ring-shaped, and the support rod 120 is located on the lower side of the track 110. One end of the support rod 120 is installed and fixed to the track 110, and the other end is used to weld and fix to the tower 1.

[0041] Further, see Figure 4 , 5 The track 110 has a C-shaped structure with the opening facing downwards. Multiple connecting plates 111 are welded to the opening of the C-shaped structure, and the support rod 120 is welded and fixed to the connecting plates 111. The C-shaped structure of the track 110 reduces its weight.

[0042] In another option, see Figure 4 , 5 The support rod 120 is connected to the connecting plate 111 at one end, and the mounting plate 121 is fixed to the connecting plate 111 by screws.

[0043] See Figure 6 In this embodiment, multiple sets of support wheel sets 220 clamp the support ring rail 100 from the upper and lower sides. Figure 6 In the middle, two support wheel sets 220 are provided on each side, and the two support wheel sets 220 form a set of rotating clamping rails 110. In this embodiment, three sets of support wheel sets 220 are installed in a ring-shaped manner around the left and right side walls inside the groove seat 210.

[0044] See Figure 7 The support wheel assembly 220 includes an axle 221, a bearing 222, and a single-sided track wheel 223. The single-sided track wheel 223 is mounted on the axle 221 via the bearing 222, and the axle 221 is fixedly mounted to the grooved seat 210. Figure 7 In the single-sided track wheel 223, two bearings 222 are installed inside, and a first retaining ring 224 is installed between the two bearings 222. The inner ring of the left bearing is limited to the inner wall of the groove seat 210 by a second retaining ring 225, and the right bearing is limited to the inner hole of the single-sided track wheel 223 by a retaining ring 227.

[0045] Furthermore, for ease of installation, the end of the axle 221 connected to the slotted seat 210 is provided with a threaded part. The threaded part passes through a hole in the slotted seat 210 and is then screwed on and fixed with a nut 226. Figure 7 As shown.

[0046] See Figure 5 The drive assembly 300 includes a geared motor 310, which is mounted on top of the slotted seat 210. The output shaft of the geared motor 310 extends into the slotted seat 210 and is fitted with a gear 320. A gear ring 130 is mounted on top of the support ring rail 100, and the gear 320 meshes with the gear ring 130 for transmission. When the output shaft of the geared motor 310 rotates, it drives the gear 320 to rotate. Since the gear ring 130 is fixed, it drives the slotted seat 210 to rotate.

[0047] Example 2:

[0048] Based on Embodiment 1, in order to supply power to the geared motor 310, a power supply device 400 is also installed between the slotted seat 210 and the support ring rail 100.

[0049] See Figure 5 The power supply device 400 includes a sliding contact line 410 and a current collector 420. The sliding contact line 410 is ring-shaped and is installed on top of the supporting ring rail 100. The current collector 420 is installed on top inside the slotted seat 210. The current collector 420 and the sliding contact line 410 are elastically supported and slidably connected. The current collector 420 is electrically connected to the drive assembly 300. The sliding contact line 410 is used for electrical connection with the power supply. Both the sliding contact line 410 and the current collector 420 are existing technologies. In this embodiment, the sliding contact line 410 is a seamless sliding contact line of model JD-15A, and the current collector 420 is matched with the sliding contact line 410.

[0050] exist Figure 5 The diagram shows the routing of cable 430. Cable 430 is soldered to the conductive copper strip inside the sliding contact line 410 through two holes on both sides of the extension seat 140 of the track 110.

[0051] In this embodiment, an extension seat 140 is also welded to the top of the track 110. The extension seat 140 has a T-shaped structure, and the sliding contact line 410 is installed on the extension seat 140 to adapt to the installation height of the sliding contact line 410.

[0052] Furthermore, a protective cover 201 is installed on the slotted seat 210 on the outside of the geared motor 310. The protective cover 201 protects the geared motor 310 from being wetted by rainwater. Of course, the geared motor 310 can also be a waterproof motor.

[0053] The working principle or working process of this utility model:

[0054] When working, see Figure 8Cable 430 is electrically connected to a controller that controls the forward and reverse rotation of geared motor 310, thereby controlling the forward and reverse rotation of geared motor 310. When the output shaft of geared motor 310 rotates, it drives gear 320 to rotate. Since gear ring 130 is fixed, it drives rotating slotted seat 210 to rotate. When inspecting and maintaining the outer wall of tower 1, lifting ring 212 connects to the "spiderman's" cable or the wire rope of the suspended platform, allowing the cable or platform to move around the tower 1 easily.

[0055] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Any modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A suspension device for maintenance of wind turbine towers, characterized in that: The device includes a support ring rail (100), a rotating suspension seat (200), and a drive assembly (300). The support ring rail (100) is used to fix and support the tower (1). The rotating suspension seat (200) includes a grooved seat (210) and a set of support wheels (220). The grooved seat (210) has a ring or arc structure. Multiple sets of support wheels (220) are installed on both sides inside the grooved seat (210). The multiple sets of support wheels (220) rotate and clamp the support ring rail (100). A suspension ring (211) is fixedly connected to the lower end of the outer side wall of the grooved seat (210). Multiple lifting rings (212) are fixedly installed on the lower side of the suspension ring (211). The drive assembly (300) is installed on the grooved seat (210) and is connected to the support ring rail (100) to drive the rotating suspension seat (200) to rotate.

2. The wind turbine tower maintenance suspension device according to claim 1, characterized in that: The support ring rail (100) includes a track (110) and a support rod (120). The support rod (120) is located on the lower side of the track (110). One end of the support rod (120) is fixed to the track (110), and the other end is used to be fixed to the tower (1). The track (110) is ring-shaped.

3. The wind turbine tower maintenance suspension device according to claim 2, characterized in that: The track (110) has a C-shaped structure with the opening facing downwards. Multiple connecting plates (111) are fixedly connected to the opening of the C-shaped structure, and the support rod (120) is installed and fixed to the connecting plates (111).

4. The wind turbine tower maintenance suspension device according to claim 3, characterized in that: The support rod (120) is connected to the connecting plate (111) at one end, and the mounting plate (121) is fixed to the connecting plate (111) by screws.

5. A wind turbine tower maintenance suspension device according to any one of claims 1 to 4, characterized in that: Multiple sets of support wheel assemblies (220) clamp the support ring rail (100) from the upper and lower sides.

6. A wind turbine tower maintenance suspension device according to claim 5, characterized in that: The support wheel assembly (220) includes a wheel axle (221), a bearing (222), and a single-sided track wheel (223). The single-sided track wheel (223) is mounted on the wheel axle (221) via the bearing (222). The wheel axle (221) is fixedly mounted to the grooved seat (210).

7. A wind turbine tower maintenance suspension device according to claim 6, characterized in that: The axle (221) is connected to the grooved seat (210) at one end with a screw part. The screw part passes through the hole on the grooved seat (210) and is then screwed on and fixed with a nut (226).

8. A wind turbine tower maintenance suspension device according to claim 1, characterized in that: The drive assembly (300) includes a geared motor (310), which is mounted on the top of the slotted seat (210). The output shaft of the geared motor (310) extends into the slotted seat (210) and is fitted with a gear (320). A gear ring (130) is mounted on the top of the support ring rail (100), and the gear (320) meshes with the gear ring (130) for transmission.

9. A wind turbine tower maintenance suspension device according to claim 1 or 8, characterized in that: A power supply device (400) is also installed between the slotted seat (210) and the support ring rail (100). The power supply device (400) includes a sliding contact line (410) and a current collector (420). The sliding contact line (410) is ring-shaped and is installed on the top of the support ring rail (100). The current collector (420) is installed on the top inside the slotted seat (210). The current collector (420) and the sliding contact line (410) are elastically supported and slidably connected. The current collector (420) is electrically connected to the drive assembly (300). The sliding contact line (410) is used to electrically connect to the power supply.

10. A wind turbine tower maintenance suspension device according to claim 8, characterized in that: A protective cover (201) is installed on the slotted seat (210) on the outside of the geared motor (310).

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