An adjustable lifting hook device for internal maintenance of a wind turbine generator.

Abstract

This utility model discloses an adjustable hook device for internal maintenance of a wind turbine, comprising a housing, a spring fixedly connected to the upper top wall of the housing, a rotating part fixedly connected to the end of the spring away from the housing, a bolt fixedly connected to the side surface of the rotating part, the bolt passing through the rotating part and threadedly connected to a nut, a rotating block fixedly connected to the side surface of the rotating part, a hook body detachably connected to the inner side wall of the rotating part, a sliding rod fixedly connected to the side surface of the rotating part, and an anti-detachment plate rotatably connected to the side surface of the sliding rod. Through these components, after the hook body hooks the equipment, gravity causes the hook body to rotate while the sliding rod drives the anti-detachment plate to rotate synchronously, thereby sealing the opening of the hook body. This prevents objects from falling off when the hook device is suspending them, making the device easy to move within the confined space of the wind turbine without requiring manual entry into the wind turbine to secure the equipment to the hook body.

Description

Technical Field

[0001] This utility model relates to the technical field of hook devices, and in particular to an adjustable hook device for internal maintenance of wind turbine generators. Background Technology

[0002] In wind turbine maintenance, hook devices are often used to suspend various maintenance equipment. However, existing hook devices have several shortcomings: First, they lack flexibility in load-bearing adjustment. Most existing hooks have fixed hook bodies, making it impossible to replace them according to the different weights of the equipment being maintained. This results in a single hook being unable to adapt to equipment of various weight specifications. To meet different load-bearing requirements, multiple hooks of different specifications are needed, increasing equipment costs and causing cumbersome replacement and low versatility. Second, the anti-detachment function is inconvenient to operate. Existing hook anti-detachment structures often require manual operation, such as manually closing the anti-detachment plate to prevent objects from falling. However, the interior space of a wind turbine is confined, and manual operation of the anti-detachment structure is often limited by space constraints when suspending equipment, making operation difficult and prone to failure due to improper operation, posing a safety hazard of equipment falling. Third, their usability in confined spaces is poor. Because the anti-detachment structure relies on manual operation, in the confined environment inside the wind turbine, workers must simultaneously operate the hook and the anti-detachment structure while suspending the equipment. This not only increases the difficulty of operation but also reduces the efficiency of maintenance work. It may even prolong maintenance time due to the inconvenience of operation, thus increasing the labor intensity of the workers. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an adjustable hook device for internal maintenance of wind turbines. By inserting different hooks into the rotating part and fixing them with bolts and nuts, the hook device can be changed according to the different weights of the equipment, making it easy to adjust the load-bearing capacity of the hook device. After the hook hooks the equipment, the hook rotates under the action of gravity, and the anti-detachment plate rotates synchronously with the sliding rod, thereby closing the opening of the hook and preventing the object from falling off when the hook device is hanging. This automatic closing function makes the device easy to move in the narrow space of the wind turbine, avoiding the difficulty of operation caused by workers entering the wind turbine to manually open the anti-detachment plate and hang the equipment on the hook, thus improving the convenience of the device when using it.

[0004] This utility model also provides an adjustable wind turbine internal maintenance hook device, comprising: a housing; a spring fixedly connected to the upper top wall of the housing; a rotating part fixedly connected to the end of the spring away from the housing; a bolt fixedly connected to the side surface of the rotating part; the bolt passing through the rotating part and threadedly connected to a nut; a rotating block fixedly connected to the side surface of the rotating part; a hook body detachably connected to the inner side wall of the rotating part; a sliding rod fixedly connected to the side surface of the rotating part; and an anti-detachment plate rotatably connected to the side surface of the sliding rod. Through these components, after the hook body hooks the equipment, gravity causes the hook body to rotate while the sliding rod drives the anti-detachment plate to rotate synchronously, thereby closing the opening of the hook body. This prevents objects from falling off when the hook device is suspending them, making the device easy to move within the confined space of the wind turbine and eliminating the need for manual entry into the wind turbine to secure the equipment to the hook body, thus improving the convenience of use.

[0005] According to the present invention, an adjustable hook device for internal maintenance of a wind turbine generator is provided, wherein the side surface of the rotating part is rotatably connected to the housing, and the side surface of the rotating block is rotatably connected to the housing. This allows the rotating part and the rotating block to drive the hook body to rotate, thereby hooking the component requiring maintenance.

[0006] According to the present invention, an adjustable hook device for internal maintenance of a wind turbine generator includes a stop block fixedly connected to the inner side wall of the housing, the stop block being located between the hook body and the anti-detachment plate. The stop block restricts the rotation angle between the hook body and the anti-detachment plate and is used to position the hook body and the anti-detachment plate.

[0007] According to the present invention, an adjustable hook device for internal maintenance of a wind turbine generator has an anti-detachment plate whose side surface is rotatably connected to the housing, and the side surface of the housing fits against a stop block after rotation. This ensures that the anti-detachment plate can fit against the stop block after rotation.

[0008] According to the present invention, an adjustable hook device for internal maintenance of a wind turbine generator is provided with a slot on the lower surface of the anti-detachment plate, and the end of the hook body is located inside the slot after rotation. This allows the end of the hook body to penetrate deeply into the slot, thereby sealing the hook body with the anti-detachment plate.

[0009] According to the present invention, an adjustable hook device for internal maintenance of a wind turbine generator includes an anti-detachment plate with a sliding groove inside, and the end of the sliding rod away from the rotating part extending into the sliding groove. This allows the sliding rod to slide along the sliding groove, thereby driving the anti-detachment plate to rotate.

[0010] According to the present invention, an adjustable hook device for internal maintenance of a wind turbine generator is provided with a mounting groove on the lower surface of the rotating part, and one end of the hook body extends into the mounting groove. The hook body can be inserted into the mounting groove, and the hook body and the mounting part can be fixed together by bolts and nuts.

[0011] According to the present invention, an adjustable hook device for internal maintenance of a wind turbine generator includes a connector rotatably connected to the inner side of the housing, a fixing member fixedly connected to the side surface of the connector, and the side surface of the fixing member rotatably connected to the housing. Connecting the connector to the housing via the fixing member allows the housing to be connected to suspension ropes or other components.

[0012] Beneficial effects:

[0013] This technical solution provides an adjustable hook device for internal maintenance of wind turbines. By inserting different hooks into the rotating part and fixing them with bolts and nuts, the hook device can be changed to suit the different weights of the equipment, facilitating the adjustment of the hook's load-bearing capacity. After the hook catches the equipment, gravity causes the hook to rotate, and simultaneously, a sliding rod drives the anti-detachment plate to rotate synchronously, thus sealing the opening of the hook. This prevents objects from falling off when suspended by the hook device. Furthermore, this automatic sealing function makes the device easy to move within the confined space of the wind turbine, avoiding the difficulty of manually opening the anti-detachment plate and hanging the equipment on the hook when entering the wind turbine, thus improving the convenience of the device during use. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a structural diagram showing the load state of the adjustable wind turbine internal maintenance hook device of this utility model;

[0016] Figure 2 This is a structural diagram showing the unloading state of the adjustable wind turbine internal maintenance hook device of this utility model;

[0017] Figure 3 This is a cross-sectional view of the adjustable wind turbine internal maintenance hook device of this utility model;

[0018] Figure 4 This is a structural diagram of the mounting section of the adjustable wind turbine internal maintenance hook device of this utility model;

[0019] Figure 5 This is a cross-sectional view of the anti-detachment plate of the adjustable wind turbine internal maintenance hook device of this utility model.

[0020] Legend:

[0021] 1. Housing; 2. Rotating block; 3. Hook; 4. Anti-detachment plate; 5. Spring; 6. Rotating part; 7. Bolt; 8. Connecting part; 9. Fixing part; 10. Slide rod; 11. Stop block; 12. Slot; 13. Nut; 14. Mounting slot; 15. Slide groove. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Reference Figure 1-5 This utility model provides an adjustable hook device for internal maintenance of a wind turbine, comprising: a housing 1, a spring 5 fixedly connected to the upper top wall of the housing 1, a rotating part 6 fixedly connected to the end of the spring 5 away from the housing 1, a side surface of the rotating part 6 rotatably connected to the housing 1, a bolt 7 fixedly connected to the side surface of the rotating part 6, the bolt 7 passing through the rotating part 6 and threadedly connected to a nut 13, a rotating block 2 fixedly connected to the side surface of the rotating part 6, the side surface of the rotating block 2 rotatably connected to the housing 1, a hook body 3 detachably connected to the inner side wall of the rotating part 6, a sliding rod 10 fixedly connected to the side surface of the rotating part 6, and an anti-detachment plate 4 rotatably connected to the side surface of the sliding rod 10.

[0024] Specifically, before use, insert the hook 3 of appropriate size into the mounting slot 14 of the rotating part 6, and insert the bolt 7 from the outside of the rotating block 2 through the insertion hole of the rotating part 6 and the hook 3. Then, use the nut 13 from the other side of the rotating block 2 to install the hook 3 on the rotating part 6. After that, control the hook device so that the hook 3 can be hooked onto the equipment inside the wind turbine being lifted or transported. Then lift the hook 3. Under the action of gravity, the hook 3 will pull the spring 5 and start to rotate until it is in contact with the stop block 11. During the rotation, the anti-detachment plate 4 will be rotated at the same time through the slide rod 10, so that the end of the hook 3 can be inserted into the slot 12 of the anti-detachment plate 4. The anti-detachment plate 4 seals the opening of the hook 3, thereby preventing the equipment from falling off the hook 3 when the equipment is lifted. Moreover, the hook 3 can be sealed by gravity after hooking the equipment, which makes the device easy to move in the narrow space of the wind turbine, and there is no need for people to enter the wind turbine to fix the equipment on the hook 3, which is convenient to use.

[0025] A stop 11 is fixedly connected to the inner side wall of the housing 1. The stop 11 is located between the hook body 3 and the anti-detachment plate 4. The side surface of the anti-detachment plate 4 is rotatably connected to the housing 1. After rotation, the side surface of the housing 1 fits against the stop 11. A connector 8 is rotatably connected to the inner side of the housing 1. A fixing member 9 is fixedly connected to the side surface of the connector 8. The side surface of the fixing member 9 is rotatably connected to the housing 1.

[0026] Specifically, the bottom of the housing 1 is equipped with a stop block 11 to limit the rotation angle of the hook body 3 and the anti-detachment plate 4 when hooking a heavy object, so as to avoid excessive rotation causing the hook body 3 to contact and be damaged by the anti-detachment plate 4. The housing 1 is also equipped with a mounting connector 8 and a fixing part 9 to connect the housing 1 with connecting parts such as ropes.

[0027] The lower surface of the anti-detachment plate 4 is provided with a slot 12. After rotation, the end of the hook body 3 is located inside the slot 12. The interior of the anti-detachment plate 4 is provided with a sliding groove 15. The end of the sliding rod 10 away from the rotating part 6 extends into the sliding groove 15. The lower surface of the rotating part 6 is provided with an installation groove 14. One end of the hook body 3 extends into the installation groove 14.

[0028] Specifically, the anti-detachment plate 4 has a slot 12 at the bottom to allow the end of the hook 3 to be inserted into the slot 12 to close the opening of the hook 3. The anti-detachment plate 4 also has a sliding groove 15 inside. When the rotating part 6 rotates, it can drive the sliding rod 10 to slide along the sliding groove 15, thereby driving the anti-detachment plate 4 to rotate. The rotating part 6 also has an installation groove 14 inside, so that the installation part of the hook 3 can be inserted into the installation groove 14, and the bolt 7 passes through the rotating part 6 and the hook 3 to fix the hook 3.

[0029] Working principle: Before use, insert the hook body 3 of appropriate size into the mounting slot 14 of the rotating part 6, and insert the bolt 7 from the outside of the rotating block 2 through the insertion hole of the rotating part 6 and the hook body 3. Then, use the nut 13 to install the hook body 3 on the rotating part 6 from the other side of the rotating block 2. Then, control the hook device so that the hook body 3 can be hung on the equipment inside the wind turbine being lifted or transported. Then lift the hook body 3. Under the action of gravity, the hook body 3 will pull the spring 5 and start to rotate until it is in contact with the stop block 11. During the rotation, the anti-detachment plate 4 will be driven to rotate through the slide rod 10, so that the end of the hook body 3 can be inserted into the slot 12 of the anti-detachment plate 4. The anti-detachment plate 4 seals the opening of the hook body 3, thereby preventing the equipment from falling off the hook body 3 when the equipment is lifted.

[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An adjustable lifting hook device for internal maintenance of a wind turbine generator, characterized in that, include: A housing (1) is fixedly connected to a spring (5) on its upper top wall. A rotating part (6) is fixedly connected to one end of the spring (5) away from the housing (1). A bolt (7) is fixedly connected to the side surface of the rotating part (6). The bolt (7) passes through the rotating part (6) and is threadedly connected to a nut (13). A rotating block (2) is fixedly connected to the side surface of the rotating part (6). A hook (3) is detachably connected to the inner side wall of the rotating part (6). A sliding rod (10) is fixedly connected to the side surface of the rotating part (6). An anti-detachment plate (4) is rotatably connected to the side surface of the sliding rod (10).

2. The adjustable wind turbine internal maintenance hook device according to claim 1, characterized in that, The side surface of the rotating part (6) is rotatably connected to the housing (1), and the side surface of the rotating block (2) is rotatably connected to the housing (1).

3. The adjustable wind turbine internal maintenance hook device according to claim 1, characterized in that, A stop (11) is fixedly connected to the inner side wall of the housing (1), and the stop (11) is located between the hook body (3) and the anti-detachment plate (4).

4. The adjustable wind turbine internal maintenance hook device according to claim 1, characterized in that, The side surface of the anti-detachment plate (4) is rotatably connected to the housing (1), and the side surface of the housing (1) is in contact with the stop block (11) after rotation.

5. The adjustable wind turbine internal maintenance hook device according to claim 1, characterized in that, The lower surface of the anti-detachment plate (4) is provided with a slot (12), and the end of the hook (3) is located inside the slot (12) after rotation.

6. The adjustable wind turbine internal maintenance hook device according to claim 1, characterized in that, The anti-detachment plate (4) has a groove (15) inside, and the end of the slide rod (10) away from the rotating part (6) extends into the groove (15).

7. The adjustable wind turbine internal maintenance hook device according to claim 1, characterized in that, The lower surface of the rotating part (6) is provided with a mounting groove (14), and one end of the hook (3) extends into the mounting groove (14).

8. The adjustable wind turbine internal maintenance hook device according to claim 1, characterized in that, The inner side of the housing (1) is rotatably connected to a connector (8), and the side surface of the connector (8) is fixedly connected to a fixing member (9), and the side surface of the fixing member (9) is rotatably connected to the housing (1).

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