Yaw driver lifting device

Abstract

The utility model provides a lifting device of a yaw driver, which comprises a jack, a supporting bottom frame arranged at the bottom of the jack, a mounting platform arranged on the supporting bottom frame, a supporting top frame arranged at the top of the jack, a lifting frame arranged on the supporting top frame, a connecting frame arranged at the top of the lifting frame, a connecting hole arranged on the connecting frame, and a connecting rod arranged on the connecting hole. A connecting bolt is arranged on the yaw driver body, penetrates through the connecting hole and is in threaded connection with the yaw driver body. The yaw driver main body is subjected to lifting debugging through the device, and compared with a traditional mode that a cantilever crane is used and equipment such as a long lifting belt and a chain block is connected, the device is more convenient and faster to install, tedious installation procedures are not needed, the downtime of the yaw driver main body is shortened, and the influence on normal power generation of a unit is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, and particularly relates to a yaw drive lifting device. Background Art

[0002] The yaw drive of a wind turbine is an important part of the yaw system of the wind turbine. It is responsible for driving the wind wheel or nacelle of the wind turbine to rotate according to the change of the wind direction to ensure that the wind wheel always faces the wind direction, so as to maximize the capture of wind energy. The yaw drive of a wind turbine is an indispensable and important component in the wind power generation system, and it improves the power generation efficiency and stability of the wind turbine through precise yaw control.

[0003] To ensure the stable operation of the yaw drive of the wind turbine, the yaw drive needs to be adjusted. Since the yaw drive of the wind turbine is very heavy, currently when implementing on-site adjustment operations of the yaw drive, a cantilever crane needs to be used and connected with long sling, chain block, short sling, shackle, etc. The preparation and storage time is long. At the same time, the cantilever crane is cancelled for the parity models, and the time for temporarily installing the cantilever crane, disassembling the yaw motor, disassembling the yaw gearbox and reinstalling is also required, and the process is very long.

[0004] Therefore, when performing on-site adjustment operations of the yaw drive, the unit often needs to be shut down for several days, seriously affecting the normal power generation of the unit. Thus, in view of this, a yaw drive lifting device is proposed to solve the above technical problems. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the utility model proposes a yaw drive lifting device to solve the technical problems in the above background art that when performing on-site adjustment operations of the yaw drive currently, a cumbersome equipment installation process is required, resulting in a long shutdown time of the yaw drive and seriously affecting the normal power generation of the unit.

[0006] To achieve the above object, the utility model provides the following technical solution. A yaw drive lifting device is used to lift the yaw drive main body on the installation platform, and includes:

[0007] A jack with a support chassis at the bottom, and the support chassis is arranged on the installation platform;

[0008] A support top frame arranged on the top of the jack; and

[0009] A lifting frame arranged on the support top frame. A connecting frame is arranged on the top of the lifting frame, and a connecting hole is opened on the connecting frame. A connecting bolt is arranged on the yaw drive main body, and the connecting bolt penetrates through the connecting hole and is screwed with the yaw drive main body.

[0010] In a preferred embodiment, a positioning component is further included, and the positioning component is connected to the yaw drive main body and the mounting platform.

[0011] In a preferred embodiment, the positioning component includes a guiding bolt. A first flange is provided on the mounting platform, and a second flange is provided on the yaw drive main body. The guiding bolt is inserted into the coaxially arranged holes of the first flange and the second flange and is screwed to the first flange.

[0012] In a preferred embodiment, a limit buckle is provided on one side of the support chassis, and the limit buckle is clamped inside the mounting platform.

[0013] In a preferred embodiment, the lifting frame is detachably connected to the support top frame.

[0014] In a preferred embodiment, an ear seat is provided at the bottom of the lifting frame, and the ear seat is arranged on the support top frame and is connected to it by bolts.

[0015] Compared with the prior art, the present utility model has the following beneficial effects:

[0016] When the device is in use, two groups of the lifting devices are selected and placed on both sides of the yaw drive main body. The device is placed on the mounting platform through the support chassis, and the connecting frame is fixedly connected to the yaw drive main body through connecting bolts. Finally, the support top frame can be lifted by controlling the jack to lift the yaw drive main body. By using this device to lift and debug the yaw drive main body, compared with the traditional method of using a cantilever crane and connecting long sling, hand chain hoist and other equipment, the installation of this device is more convenient and fast, without cumbersome installation procedures, reducing the downtime of the yaw drive main body and reducing the impact on the normal power generation of the unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present utility model, the drawings required for use in the specific embodiments will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0018] Figure 1 It is a schematic installation structure diagram of a yaw drive lifting device provided by the present utility model;

[0019] Figure 2 It is a three-dimensional structure diagram of a yaw drive lifting device of the present utility model;

[0020] Figure 3 It is a schematic structure diagram of the support chassis in a yaw drive lifting device of the present utility model.

[0021] Reference numerals:

[0022] 1. Mounting platform; 2. First flange; 3. Yaw drive body; 4. Second flange; 5. Guide bolts; 6. Jack; 7. Support base frame; 8. Limit buckle; 9. Support top frame; 10. Lifting frame; 11. Ear seat; 12. Connecting frame; 13. Connecting hole; 14. Connecting bolts. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the utility model and cannot be understood as limiting the scope of protection of the utility model. Technical personnel in this field can make some non-essential improvements and adjustments to the utility model based on the above application content.

[0024] Example:

[0025] like Figure 1 , 2 As shown, the utility model provides a yaw drive lifting device for lifting a yaw drive body 3 on a mounting platform 1, comprising a jack 6, a supporting base frame 7 is provided at the bottom of the jack 6, the supporting base frame 7 is provided on the mounting platform 1, a supporting top frame 9 is provided at the top of the jack 6, a lifting frame 10 is provided on the supporting top frame 9, a connecting frame 12 is provided at the top of the lifting frame 10, a connecting hole 13 is provided on the connecting frame 12, a connecting bolt 14 is provided on the yaw drive body 3, the connecting bolt 14 passes through the connecting hole 13 and is screwed to the yaw drive body 3.

[0026] When the device is in use, the supporting frame 7 is placed on the installation platform 1, and a group of the device can be arranged on both sides of the yaw drive body 3 to make the lifting more stable. After the supporting frame 7 is placed, the connecting bolts 14 of the yaw drive body 3 can be removed, and the screw of the jack 6 is turned to make the connecting frame 12 drop until it contacts the yaw drive body 3, and the connecting bolts 14 are passed through the connecting hole 13 and screwed to the yaw drive body 3 again, so that the installation of the device can be completed quickly. After the installation is completed, the supporting frame 9 on the jack 6 can be driven to rise by turning the screw of the jack 6, so that the yaw drive body 3 can be lifted. Among them, the jack 6 is a conventional screw-driven conventional structure, which will not be repeated here. The yaw drive body 3 is lifted by the device, and there is no need to install cumbersome cantilever cranes, hand winches, slings, etc., which greatly shortens the adjustment operation time of the yaw drive body 3, and the operation time is expected to be shortened from 10 hours to 2 hours.

[0027] like Figure 1 , 2As shown in the figure, in this embodiment, the device further includes a positioning component, which is connected to the yaw drive main body 3 and the mounting platform 1. The positioning component includes a guiding bolt 5. A first flange 2 is provided on the mounting platform 1, and a second flange 4 is provided on the yaw drive main body 3. The guiding bolt 5 passes through the coaxially arranged holes in the first flange 2 and the second flange 4, and the guiding bolt 5 is screwed to the first flange 2.

[0028] During the process of lifting the yaw drive main body 3 by this device, the movement of the yaw drive main body 3 can be positioned through the guiding bolt 5, avoiding large offsets in the position of the yaw drive main body 3, and improving the safety and stability when lifting the yaw drive main body 3.

[0029] As Figure 1 、 3 As shown in the figure, in this embodiment, a limit buckle 8 is provided on one side of the support chassis 7, and the limit buckle 8 is clamped inside the mounting platform 1. The position of the support chassis 7 can be appropriately adjusted so that the limit buckle 8 buckles the inner wall of the mounting platform 1, preventing the device from slipping when stressed, and further improving the safety and stability when lifting the yaw drive main body 3.

[0030] As Figure 2 As shown in the figure, in this embodiment, the lifting frame 10 is detachably connected to the support top frame 9. An ear seat 11 is provided at the bottom of the lifting frame 10, and the ear seat 11 is arranged on the support top frame 9 and connected to it by bolts. By setting bolts, the ear seat 11 can be separated from the support top frame 9, so as to conveniently replace the lifting frame 10, the connecting frame 12 and the guiding bolt 5 of different models to adapt to the yaw drive main bodies 3 of different sizes and structures for use, improving the application range of this device.

[0031] The specific usage mode and beneficial effects of the present utility model:

[0032] When this device is in use, select two groups of this lifting device and place them on both sides of the yaw drive main body. Place this device on the mounting platform 1 through the support chassis 7, and fixedly connect the connecting frame 12 to the yaw drive main body 3 through the connecting bolt 14. Finally, the support top frame 9 can be lifted by controlling the jack 6 to lift the yaw drive main body 3. By using this device to lift and debug the yaw drive main body 3, compared with the traditional method of using a cantilever crane and connecting equipment such as long slings and chain hoists, the installation of this device is more convenient and fast, without cumbersome installation procedures, reducing the downtime of the yaw drive main body 3 and reducing the impact on the normal power generation of the unit.

[0033] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments. Based on the present utility model, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present utility model all fall within the scope of protection required by the present utility model.

Claims

1. A yaw drive lifting device for lifting a yaw drive body (3) on an installation platform (1), characterized in that, It includes: A jack (6) with a support chassis (7) provided at the bottom, and the support chassis (7) is arranged on the installation platform (1); A support top frame (9) arranged at the top of the jack (6); and A lifting frame (10) arranged on the support top frame (9). A connecting frame (12) is provided at the top of the lifting frame (10). A connecting hole (13) is formed in the connecting frame (12). A connecting bolt (14) is provided on the yaw drive body (3). The connecting bolt (14) penetrates through the connecting hole (13) and is screwed to the yaw drive body (3).

2. The yaw drive lifting device according to claim 1, characterized in that: It further includes a positioning assembly, and the positioning assembly is connected to the yaw drive body (3) and the installation platform (1).

3. The yaw drive lifting device according to claim 2, wherein: The positioning assembly includes a guiding bolt (5). A first flange (2) is provided on the installation platform (1). A second flange (4) is provided on the yaw drive body (3). The guiding bolt (5) is inserted into the coaxial holes of the first flange (2) and the second flange (4) and is screwed to the first flange (2).

4. A yaw drive lifting device according to claim 1, characterized in that: A limit buckle (8) is provided on one side of the support chassis (7), and the limit buckle (8) is clamped inside the installation platform (1).

5. The yaw drive lifting device according to claim 1, characterized in that: The lifting frame (10) is detachably connected to the support top frame (9).

6. The lifting device of a yaw drive according to claim 5, characterized in that: An ear seat (11) is provided at the bottom of the lifting frame (10). The ear seat (11) is arranged on the support top frame (9) and is connected thereto by bolts.

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