Replacement tool on half-direct-drive wind power gear box output system tower
By designing a tower-mounted replacement fixture for the output system of a semi-direct drive wind turbine gearbox, the problems of high cost and long replacement cycle in the existing technology are solved. This allows for direct replacement of the output shaft system on the tower, reducing costs and improving efficiency. It is applicable to gearboxes of various specifications.
Patent Information
- Application Number
- CN202423275941.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In the existing technology, replacing the output shaft of a semi-direct drive wind turbine gearbox requires removing the gearbox and other components in the transmission chain from the tower, resulting in high replacement costs and long cycles.
Design a tower-mounted replacement fixture for a semi-direct drive wind turbine gearbox output system, including components such as a flexible support base, a downwind bracket, an I-beam, and a lifting tool, which allows for direct maintenance and replacement of the output shaft system inside the nacelle.
It enables direct replacement of the output shaft system on the tower, reducing costs, shortening downtime, and improving replacement efficiency. It is highly adaptable and suitable for various gearbox specifications.
Smart Images

Figure CN223674131U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to gear box technical field, more specifically, especially relates to a kind of semi-direct drive wind power gear box output system tower replacement tooling. BACKGROUND
[0002] Wind power generation is a clean, renewable energy form, is an important part of modern energy system. Gear box is one of the important equipment to realize the conversion of wind energy into electrical energy, its operating state affects the performance and life of the whole unit. Semi-direct drive wind power gear box is widely used in the field of wind power generation due to its unique design advantages. Due to the long service life of wind turbine, the output shaft and other components of the gear box will inevitably be replaced due to wear, aging or failure. The current replacement method needs to remove the gear box and other components in the transmission chain from the tower, and then send them to a professional maintenance site for replacement and maintenance. This replacement method needs to spend millions of dollars to lift the gear box, and the cost is high, and the replacement cycle is long. To solve this problem, the present application provides a solution for replacing and maintaining the output shaft system of the gear box directly on the tower. SUMMARY
[0003] In view of the shortcomings of the prior art, the utility model provides a semi-direct drive wind power gear box output system tower replacement tooling, which can directly replace and maintain the output shaft system of the gear box in the cabin.
[0004] To achieve the above purpose, the utility model realizes the following technical scheme: a semi-direct drive wind power gear box output system tower replacement tooling, comprising two parallel elastic support seats, the opposite side of the elastic support seat is provided with a lower wind direction support, the elastic support seat and the lower wind direction support are fixedly connected through a support frame, characterized in that: a I-beam is arranged above the lower wind direction support and fixedly connected with the support frame, a lifting device is arranged below the I-beam and slidably connected with the support frame through a trolley, and a connecting plate, a supporting rod and an output shaft are connected to the bottom of the lifting device.
[0005] Preferably, a nylon sleeve is rotatably connected at the connection between the tail of the supporting rod and the lifting device.
[0006] Preferably, the lower wind direction support and the support frame are connected through a first lower wind direction support connecting seat and a second lower wind direction support connecting seat.
[0007] Preferably, the mounting position of the elastic support seat is the elastic support position of the support frame.
[0008] Preferably, mounting pins are further arranged on the surfaces of the first lower wind direction support connecting seat and the second lower wind direction support connecting seat.
[0009] The utility model provides a kind of half direct drive wind power gear box output system tower replacement tool, with following beneficial effects:
[0010] 1, low cost: using the tool can be directly on the tower replacement maintenance output shaft, avoid the gear box tower and hoisting cost;
[0011] 2, high efficiency, short downtime: tower replacement maintenance cycle is about seven days or so, shorter downtime, higher efficiency;
[0012] 3, installation adaptability is good: tool support installation size can be adjusted according to actual cabin condition installation, only need to adjust output shaft connecting plate size, can adapt to multiple specifications half direct drive wind power gear box. DRAWINGS
[0013] Figure 1 It is the overall structure schematic diagram of the utility model.
[0014] In the drawing, 1, elastic support seat;2, connecting plate;3, support rod;4, nylon cover;5, sling;6, first lower wind direction support connecting seat;7, second lower wind direction support connecting seat;8, I-steel;9, trolley;10, output shaft;11, mounting pin;12, lower wind direction support. DETAILED DESCRIPTION
[0015] The embodiment of the utility model is further described in detail in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.
[0016] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more;The orientation or position relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" is based on the orientation or position relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, so it cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0017] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or electrically connected;It can be directly connected, or indirectly connected through intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.
[0018] Please refer to Figure 1 The utility model provides a technical scheme: a kind of half direct drive wind power gear box tower replacement output shaft 10 system tooling, such as Figure 1 Including elastic support seat 1, connecting plate 2, support rod 3, nylon cover 4, sling 5, first lower wind direction support connecting seat 6, second lower wind direction support connecting seat 7, I-steel 8, trolley 9, output shaft 10, mounting pin 11, lower wind direction support 12;Elastic support seat 1 is installed to the elastic support of support frame, connecting plate 2, support rod 3 are connected with output shaft 10, nylon cover 4, sling 5 are connected with trolley 9, trolley 9 is installed on I-steel 8, trolley 9 can move horizontally on I-steel 8 when working.
[0019] Target wind power gear box output shaft 10 end removes generator adapter disc after using original output shaft 10 threaded hole and connecting plate 2, support rod 3 are connected into assembly 1;Nylon cover 4, sling 5 and trolley 9 are connected into an integral assembly 2, and assembly 1 can rotate around nylon cover 4;Trolley 9 raceway is on I-steel 8, and assembly 2 can translate along I-steel 8;Elastic support base is installed on elastic support, and first lower wind direction support connecting seat 6 and second lower wind direction support connecting seat 7 are connected by mounting pin 11 and can rotate relatively, which can ensure that tooling and cabin are installed in place, while ensuring that I-steel 8 and gear box have the same inclination angle, so that output shaft 10 system can be moved out or installed horizontally.
[0020] The specific use and role of the embodiment are as follows: first, the tooling support is built in the cabin to ensure that I-steel 8 and the gear box are horizontally relative, then the remaining components and output shaft 10 are fastened by bolts after adjustment. After the overall tooling is built, hydraulic cylinders are symmetrically erected between connecting plate 2 and the gear box, and when disassembling, the connecting plate 2 and output shaft 10 are moved outward along the inclination angle of the gear box by the hydraulic cylinders, and the entire output shaft 10 assembly is removed; when reinstalling, after the new output shaft 10 system is installed with the tooling, it is moved along I-steel 8 to the output shaft 10 system mounting hole, and then it is pressed into the bearing hole from the outside by the hydraulic cylinder, and when moving, the engagement between the endoscope and the sun gear tooth surface is observed, the output shaft 10 is rotated to align the teeth, and then it is installed in place.
[0021] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.
Claims
1. A semi-direct drive wind turbine gearbox output system tower on-site replacement tooling, comprising two parallel arranged elastic support seats (1), characterized in that: The elastic support seat (1) is provided with lower wind direction supports (12) arranged in parallel with each other on the opposite side, the elastic support seat (1) is fixedly connected with the lower wind direction supports (12) through a support frame, the lower wind direction supports (12) are provided with I-shaped steel (8) fixedly connected with the support frame above, the I-shaped steel (8) is provided with a lifting appliance (5) slidingly connected with the support frame through a trolley (9) below, the lifting appliance (5) is connected with a connecting plate (2), a support rod (3) and an output shaft (10) at the bottom.
2. The on-site replacement tooling for the output system of a semi-direct drive wind turbine gearbox according to claim 1, characterized in that: A nylon sleeve (4) is rotatably connected at the tail of the support rod (3) and the connecting position of the lifting appliance (5).
3. The on-site replacement tooling for the output system of a semi-direct drive wind turbine gearbox according to claim 1, characterized in that: The lower wind direction supports (12) and the support frame are connected through a first lower wind direction support connecting seat (6) and a second lower wind direction support connecting seat (7).
4. The on-site replacement tooling for the output system of a semi-direct drive wind turbine gearbox according to claim 1, characterized in that: The mounting position of the elastic support seat (1) is the elastic support position of the support frame.
5. The on-site replacement tooling for the output system of a semi-direct drive wind turbine gearbox according to claim 3, characterized in that: The first lower wind direction support connecting seat (6) and the second lower wind direction support connecting seat (7) are further provided with mounting pins (11) on the surface.