Maintenance tower for wind driven generator

Abstract

The utility model discloses a maintenance control tower for a wind driven generator, and relates to the technical field of wind power generation, in particular to the maintenance control tower for the wind driven generator, which is fixedly mounted in a tower body of the wind driven generator and comprises a first ring frame and a second ring frame, and a plurality of steel bolts are arranged on the outer side wall of the first ring frame. The first ring frame is fixedly installed on the inner wall of a tower body of the wind driven generator through a plurality of steel bolts, a plurality of supporting columns with certain lengths are fixedly connected to the first ring frame, and the upper ends of the supporting columns are fixedly connected with the second ring frame. According to the maintenance tower for the wind driven generator, by arranging part protection, the effects of protecting workers and preventing tools or equipment from falling off are achieved, and by arranging a protection net above the maintenance platform, life danger caused by falling of the workers from top to bottom is prevented; tools or equipment are prevented from falling off, low-position equipment is prevented from being damaged, and the purposes of guaranteeing the life safety of workers and avoiding equipment damage are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to a wind power generator maintenance tower. Background Art

[0002] A wind turbine is an electric device that converts wind energy into mechanical work, which drives the rotor to rotate and finally outputs alternating current. The working principle of a wind turbine is relatively simple. The wind rotor rotates under the action of wind force, which converts the kinetic energy of the wind into the mechanical energy of the wind rotor shaft. The generator rotates and generates electricity under the drive of the wind rotor shaft. During daily maintenance of wind turbines, workers need to enter the wind turbine tower for daily maintenance. However, since the wind turbine tower is about 50 meters high, in order to avoid safety problems when workers climb inside the tower, multiple maintenance platforms are set up inside the tower. These maintenance platforms are used to place equipment or for workers to rest temporarily, but there is still a certain height difference between adjacent maintenance platforms in the vertical direction.

[0003] In the published Chinese patent application, the publication number is CN219549044U, and the patent name is: A wind turbine maintenance tower. Although the prior art puts the sub-frame on the outside of the wind turbine fuselage, and then the tower body is located on the top of the wind turbine, and then tightens the threaded rod, the threaded rod tightens the wire rope through the U-shaped rod, and then the wire rope tightens the arc rod to make the pressure plate and the pressure pad approach the wind turbine fuselage, and then the pressure pad presses against the wind turbine fuselage, the sub-frame is firmly fixed, and it can stably support the tower body and fully deal with the dangers caused by the wind turbine fuselage fracture. However, the prior art has the following disadvantages: it is not easy to protect the staff, resulting in safety hazards for the staff working at high altitudes; when repairing the inside of the tower body, there is a risk of tools or equipment falling, and the falling of tools or equipment can easily cause damage to the bottom equipment in the wind turbine tower body. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a wind turbine maintenance tower, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a wind turbine maintenance tower, which is fixedly installed inside the wind turbine tower body, including a first ring frame and a second ring frame, a plurality of steel bolts are arranged on the outer wall of the first ring frame, the first ring frame is fixedly installed with the inner wall of the wind turbine tower body through the plurality of steel bolts, a plurality of support columns with a certain length are fixedly connected to the first ring frame, and the upper end of each of the support columns is fixedly connected to the second ring frame; a protective component is arranged on the second ring frame, and the protective component includes a protective net, a fixing belt, a net spreading assembly, and a net collecting assembly, and the protective net is The body is fan-shaped after unfolding, and the fixing belt passes through the outer edge of the protective net, and the fixing belt passes through the outer edge of the protective net and is fixedly connected to the inner wall of the second ring frame; the spreading net component is transmission connected with the inner edge of the protective net, and after the spreading net component pulls the inner edge of the protective net, the inner edge of the protective net shrinks and the net body unfolds; the net collecting component includes a first servo motor and a first cable, and the first servo motor is transmission connected with the first cable, and the first cable is wound around the second ring frame and the protective net along the second ring frame as a path, and after the first servo motor pulls the first cable, the first cable is tightly wound around the second ring frame and the protective net.

[0008] Optionally, a support plate is provided on the first ring frame, and the first ring frame and the support plate constitute a maintenance platform; an equipment box is fixedly installed on the support plate, a control panel is provided inside the equipment box, and an infrared sensor is provided on the equipment box; the control panel is respectively controlled and connected with the infrared sensor, the net collecting component, and the net spreading component.

[0009] Optionally, the net unfolding assembly includes a second servo motor, a second rope collecting wheel, and a second cable. The second rope collecting wheel is fixedly mounted on the output shaft end of the second servo motor. The second cable passes through the inner edge of the protective net. Both ends of the second cable are fixedly connected to the wheel groove of the second rope collecting wheel.

[0010] Optionally, the net collecting assembly further comprises a first rope collecting wheel, which is fixedly mounted on the output shaft end of the first servo motor, and both ends of the first cable are fixedly connected to the wheel groove of the first rope collecting wheel.

[0011] Optionally, a first aid kit and a tool box are also installed on the support plate.

[0012] Optionally, a support beam is fixedly connected to the inner side wall of the first ring frame, and the support plate is fixedly mounted on the support beam.

[0013] Optionally, a door body is hinged on the support plate.

[0014] (III) Beneficial effects

[0015] The utility model provides a wind turbine maintenance tower, which has the following beneficial effects:

[0016] 1. This kind of wind turbine maintenance tower, through the setting of component protection, has the effect of protecting workers and preventing tools or equipment from falling. By setting a protective net above the maintenance platform, it can prevent workers from falling from top to bottom and endangering their lives; it can prevent tools or equipment from falling and damaging low-lying equipment, thereby achieving the purpose of ensuring the safety of workers' lives and avoiding equipment damage.

[0017] 2. The wind turbine maintenance tower has the function of automatically folding and unfolding the protective net through the coordinated arrangement of the net spreading component and the net closing component. When a worker climbs up through the wind turbine maintenance tower, the infrared sensor detects the presence of a human body. The infrared sensor starts the first servo motor through the control panel, and the first servo motor pulls the first cable. The first cable wraps around and tightens the protective net, so that the protective net is folded. When the worker passes through the protective net, the infrared sensor cannot detect the presence of a human body, and the control panel controls the second servo motor to start. The second servo motor pulls the protective net to unfold. After the protective net is unfolded, it plays a role in ensuring the safety of the workers and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a wind turbine maintenance tower according to the utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of a wind turbine maintenance tower according to the utility model (protection net deployed);

[0021] Figure 3 This is a schematic diagram of the unfolding or folding principle of a protective net in a wind turbine maintenance tower according to the utility model;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of a second ring frame in a wind turbine maintenance tower of the utility model;

[0023] Figure 5 The utility model is a structural schematic diagram of a wind turbine maintenance tower protection net.

[0024] In the figure: 1. first ring frame; 2. second ring frame; 3. support column; 4. steel bolt; 5. support plate; 6. first servo motor; 7. first rope retracting wheel; 8. second servo motor; 9. second rope retracting wheel; 10. door body; 11. first aid kit; 12. tool box; 13. equipment box; 14. protection net; 1401. outer edge side edge; 1402. inner edge side edge; 15. first cable; 16. infrared sensor; 17. second cable; 18. fixing belt; 19. support beam. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indications or implications.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments.

[0027] For example, see Figures 1 to 5 The utility model provides a technical solution: a wind turbine maintenance tower, which is fixedly installed inside the wind turbine tower body, including a first ring frame 1 and a second ring frame 2. A plurality of steel bolts 4 are arranged on the outer wall of the first ring frame 1. The first ring frame 1 is fixedly installed with the inner wall of the wind turbine tower body through the plurality of steel bolts 4. A plurality of support columns 3 with a certain length are fixedly connected to the first ring frame 1, and the upper end of each support column 3 is fixedly connected to the second ring frame 2.

[0028] A support plate 5 is arranged on the first ring frame 1, and the first ring frame 1 and the support plate 5 form a maintenance platform. An equipment box 13 is fixedly mounted on the support plate 5, a control board is arranged inside the equipment box 13, and an infrared sensor 16 is arranged on the equipment box 13.

[0029] The control panel adopts one of an editable logic controller and a single-chip microcomputer. The control panel is equipped with a logic control program and a timing control program to meet the needs of automatic control. The maintenance platform is used to place equipment and provide a rest for workers. The infrared sensor 16 is used to detect whether a worker climbs across the maintenance platform.

[0030] The second ring frame 2 is provided with a protective component, which includes a protective net 14, a fixing belt 18, a net spreading assembly, and a net collecting assembly. The protective net 14 is fan-shaped after being unfolded as a whole, and the fixing belt 18 passes through the outer edge side edge 1401 of the protective net 14. After passing through the outer edge side edge 1401 of the protective net 14, the fixing belt 18 is fixedly connected to the inner side wall of the second ring frame 2. The net spreading assembly is transmission-connected to the inner edge side edge 1402 of the protective net 14. After the net spreading assembly pulls the inner edge side edge 1402 of the protective net 14, the inner edge side edge 1402 of the protective net 14 contracts and the net body is unfolded.

[0031] The protective component is used to prevent workers, tools or equipment from falling onto the maintenance platform to ensure the life safety of workers and equipment safety. The fixing belt 18 is used to fix the outer edge 1401 of the protective net 14 to the inner side wall of the second ring frame 2. The net spreading assembly is used to spread the protective net 14. The net closing assembly is used to close the protective net 14. After the protective net 14 is closed, it is convenient for workers to lift and pass through the maintenance platform.

[0032] The net collecting component includes a first servo motor 6 and a first cable 15. The first servo motor 6 is connected to the first cable 15 in a transmission manner. The first cable 15 is wound around the second ring frame 2 and the protective net 14 along the second ring frame 2. After the first servo motor 6 pulls the first cable 15, the first cable 15 is tightly wound around the second ring frame 2 and the protective net 14.

[0033] After the first servo motor 6 is started, the first cable 15 is wound and gathered, and the first cable 15 is pulled and gathered. After the first cable 15 is tightened, the first cable 15 is wound around the second ring frame 2 and the protective net 14, and the protective net 14 is bound to the second ring frame 2, and the protective net 14 is folded as a whole, thereby realizing the net folding.

[0034] The control panel is respectively connected to the infrared sensor 16, the net collecting assembly, and the net spreading assembly. The control panel is electrically connected to the first servo motor 6 through a wire. The control panel controls the start and stop of the first servo motor 6.

[0035] The infrared sensor 16 is used to detect whether a worker passes through the maintenance platform. After detecting the presence of a human body, the infrared sensor 16 sends a corresponding control command signal to the control board, and the control board responds to the infrared sensor and controls the first servo motor 6 to start.

[0036] Specifically, the net unfolding assembly includes a second servo motor 8, a second rope collecting wheel 9, and a second cable 17. The second rope collecting wheel 9 is fixedly mounted on the output shaft end of the second servo motor 8. The second cable 17 passes through the inner edge 1402 of the protective net 14. Both ends of the second cable 17 are fixedly connected to the wheel groove of the second rope collecting wheel 9.

[0037] The control board is electrically connected to the second servo motor 8 through a wire, and the control board controls the start and stop of the second servo motor 8. After the infrared sensor 16 detects no human presence, the control board controls the first servo motor 6 to be turned off, and the net collection component is shut down; the control board controls the start of the second servo motor 8, and the second servo motor 8 drives the second rope collection wheel 9 to rotate, and the second rope collection wheel 9 rotates to reel in the second cable 17, and the second cable 17 pulls the inner edge 1402 of the protective net 14 to unfold the protective net.

[0038] Specifically, the net collecting assembly also includes a first rope collecting wheel 7, which is fixedly mounted on the output shaft end of the first servo motor 6, and both ends of the first cable 15 are fixedly connected to the wheel groove of the first rope collecting wheel 7.

[0039] When the first servo motor 6 is started, it drives the first rope taking-up wheel 7 to rotate, and the first rope taking-up wheel 7 reels in the first cable 15 . The first cable 15 is tightly wound around the protection net 14 and the second ring frame 2 , so that the protection net 14 is closely attached to the second ring frame 2 .

[0040] For example 2, please refer to Figures 1 to 4 The main difference between this embodiment and the first embodiment is that a first aid kit 11 and a tool box 12 are also installed on the support plate 5. A support beam 19 is fixedly connected to the inner wall of the first ring frame 1, and the support plate 5 is fixedly installed on the support beam 19. A door body 10 is hinged on the support plate 5.

[0041] The first aid box 11 is used to store emergency items such as medicines. The tool box 12 is used to store maintenance tools, emergency tools, etc. The door body 10 is used to facilitate the movement of staff inside the wind turbine tower.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wind turbine maintenance tower, which is fixedly installed inside the wind turbine tower, characterized in that: The invention comprises a first ring frame (1) and a second ring frame (2), wherein a plurality of steel bolts (4) are arranged on the outer wall of the first ring frame (1), the first ring frame (1) is fixedly mounted on the inner wall of a wind turbine tower body through the plurality of steel bolts (4), a plurality of support columns (3) having a certain length are fixedly connected to the first ring frame (1), and the upper end of each of the support columns (3) is fixedly connected to the second ring frame (2); The second ring frame (2) is provided with a protective component, which includes a protective net (14), a fixing belt (18), a net spreading component, and a net collecting component. The protective net (14) is fan-shaped when it is unfolded as a whole. The fixing belt (18) passes through the outer edge side edge (1401) of the protective net (14), and the fixing belt (18) passes through the outer edge side edge (1401) of the protective net (14) and is fixedly connected to the inner side wall of the second ring frame (2); the net spreading component is transmission-connected to the inner edge side edge (1402) of the protective net (14), and after the net spreading component pulls the inner edge side edge (1402) of the protective net (14), the inner edge side edge (1402) of the protective net (14) contracts and the net body is unfolded; The net collecting component comprises a first servo motor (6) and a first cable (15). The first servo motor (6) is connected to the first cable (15) in a transmission manner. The first cable (15) is wound around the second ring frame (2) and the protective net (14) along the second ring frame (2). After the first servo motor (6) pulls the first cable (15), the first cable (15) is tightly wound around the second ring frame (2) and the protective net (14).

2. A wind turbine maintenance tower according to claim 1, characterized in that: A support plate (5) is arranged on the first ring frame (1), and the first ring frame (1) and the support plate (5) form a maintenance platform; an equipment box (13) is fixedly mounted on the support plate (5), a control panel is arranged inside the equipment box (13), and an infrared sensor (16) is arranged on the equipment box (13); the control panel is respectively connected to the infrared sensor (16), the net collecting component, and the net spreading component for control.

3. A wind turbine maintenance tower according to claim 1, characterized in that: The net deployment assembly comprises a second servo motor (8), a second rope-collecting wheel (9), and a second cable (17). The second rope-collecting wheel (9) is fixedly mounted on the output shaft end of the second servo motor (8). The second cable (17) passes through the inner edge (1402) of the protective net (14). Both ends of the second cable (17) are fixedly connected to the wheel groove of the second rope-collecting wheel (9).

4. A wind turbine maintenance tower according to claim 1, characterized in that: The net collecting assembly also includes a first rope collecting wheel (7), which is fixedly mounted on the output shaft end of the first servo motor (6), and the two ends of the first cable (15) are fixedly connected to the wheel groove of the first rope collecting wheel (7).

5. A wind turbine maintenance tower according to claim 2, characterized in that: A first aid kit (11) and a tool box (12) are also installed on the support plate (5).

6. A wind turbine maintenance tower according to claim 2, characterized in that: A support beam (19) is fixedly connected to the inner side wall of the first ring frame (1), and the support plate (5) is fixedly mounted on the support beam (19).

7. A wind turbine maintenance tower according to claim 6, characterized in that: A door body (10) is hinged on the support plate (5).

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