Lightweight high-speed generator shaft gear

CN224804796UActive Publication Date: 2026-09-25ZHEJIANG CARTER POWER CO LTD
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Patent Information

Application Number
CN202521804992.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-25
Publication Date
2026-09-25
Estimated Expiration
2035-08-25

AI Technical Summary

Technical Problem

[0004]本实用新型的目的在于至少解决现有技术中存在的技术问题之一,提供一种轻量化的高速发电机轴齿轮,能够解决螺纹连接在高速运转过程中,受振动、交变载荷等因素影响,容易出现螺纹松动现象的问题

Benefits of technology

[0010]与现有技术相比,本实用新型的有益效果是:该轻量化的高速发电机轴齿轮,通过防松滑杆会进入到固定槽的内部,以及固定板、限位板以及防松滑杆的位置进行固定,能够使齿轮与高速发电机轴之间防松转动,从而使齿轮在高速发电机轴上不会松动脱落,能够使其二者连接稳定性更高,从而确保齿轮与高速发电机轴的连接稳固的可靠性。

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Abstract

The utility model discloses a kind of lightweight high-speed generator shaft gears, it is related to gear technical field, including high-speed generator shaft, the outer surface of high-speed generator shaft is provided with gear by being provided with thread, the outer surface of high-speed generator shaft is provided with fixed groove, the inside of gear is provided with installation groove, the inside of installation groove is provided with the thread of the outer surface of high-speed generator shaft adaptation, the inner wall of installation groove is connected with the outer surface of high-speed generator shaft thread, the side of gear is provided with lightening groove, the side of gear is provided with recess, by anti-loose slide bar will enter the inside of fixed groove, and the position of fixed plate, limit plate and anti-loose slide bar is fixed, can make gear and high-speed generator shaft between anti-loose rotation, to make gear on high-speed generator shaft not loose and fall off, can make its both connection stability higher, to ensure the reliability of the connection stability of gear and high-speed generator shaft.
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Description

Technical Field

[0001] This utility model relates to the field of gear technology, and in particular to a lightweight high-speed generator shaft gear. Background Technology

[0002] In modern industry, high-speed generators, with their high energy conversion efficiency, are widely used in aerospace, new energy power generation, and other scenarios with stringent power output requirements. As the core transmission component of high-speed generators, the performance of the high-speed generator shaft gear directly affects the operational stability and reliability of the equipment. With the development of high-speed generators towards higher speeds and higher power densities, the connection stability between the gear and the high-speed motor shaft faces severe challenges.

[0003] Currently, some traditional high-speed generator shaft gears and motor shafts use a single threaded connection. During high-speed operation, the threaded connection is prone to loosening due to factors such as vibration and alternating loads. This causes relative rotation between the gear and the shaft, which not only reduces transmission accuracy but may also lead to equipment failure or even safety accidents. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a lightweight high-speed generator shaft gear that can solve the problem that the threaded connection is prone to loosening during high-speed operation due to factors such as vibration and alternating load.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lightweight high-speed generator shaft gear, comprising a high-speed generator shaft, a gear being provided with threads on the outer surface of the high-speed generator shaft, a fixing groove being provided on the outer surface of the high-speed generator shaft, an installation groove being provided inside the gear, a thread adapted to the outer surface of the high-speed generator shaft being provided inside the installation groove, a light-reducing groove being provided on one side of the gear, a recess being provided on one side of the gear, a through groove being provided on one side of the inner wall of the recess, a limiting plate being slidably connected to the inner wall of the through groove, a fixing plate being fixedly connected to one end of the limiting plate, an anti-loosening rod being fixedly connected to the top of the limiting plate, and a circular groove being provided on the bottom surface of the inner wall of the installation groove.

[0006] Preferably, the interior of the circular groove is connected to the interior of the through groove, and the interior of the circular groove is slidably connected to the outer surface of the anti-loosening rod.

[0007] Preferably, one end of the fixing plate is provided with a first threaded groove, and a fixing bolt is threadedly connected inside the first threaded groove.

[0008] Preferably, a second threaded groove is provided on one side of the inner wall of the groove, and the interior of the second threaded groove is adapted to one end of the fixing bolt.

[0009] Preferably, one end of the anti-loosening rod is slidably adapted to the inside of the fixing groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are: the lightweight high-speed generator shaft gear is fixed by the anti-loosening rod entering the fixed groove and the fixed plate, the limiting plate and the anti-loosening rod are fixed in position, which can prevent the gear from loosening and rotating with the high-speed generator shaft, so that the gear will not loosen and fall off the high-speed generator shaft, which can make the connection between the two more stable, thereby ensuring the reliable connection between the gear and the high-speed generator shaft. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of a lightweight high-speed generator shaft gear structure according to the present invention. Figure 2 For the present utility model Figure 1 Enlarged view of point A in the image; Figure 3 This is a schematic diagram of the circular groove structure of this utility model; Figure 4 For the present utility model Figure 3 Enlarged view of point B in the image.

[0012] Reference numerals in the attached drawings: 1. High-speed generator shaft; 2. Fixing groove; 3. Gear; 4. Lightening groove; 5. Mounting groove; 6. Circular groove; 7. Anti-loosening rod; 8. Groove; 9. Through groove; 10. Limiting plate; 11. Fixing plate; 12. First threaded groove; 13. Fixing bolt; 14. Second threaded groove. Detailed Implementation

[0013] This section will describe in detail the specific embodiments of this utility model. Preferred embodiments of this utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, enabling a person to intuitively and vividly understand each technical feature and overall technical solution of this utility model. However, they should not be construed as limiting the scope of protection of this utility model. In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this utility model.

[0014] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of "first" and "second" in the description is for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the order of the indicated technical features. In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of these terms in this utility model based on the specific content of the technical solution.

[0015] Please see Figure 1-4 This utility model provides a technical solution: a lightweight high-speed generator shaft gear, including a high-speed generator shaft 1, a gear 3 with threads on the outer surface of the high-speed generator shaft 1, a fixing groove 2 on the outer surface of the high-speed generator shaft 1, an installation groove 5 inside the gear 3, and a thread inside the installation groove 5 that is adapted to the outer surface of the high-speed generator shaft 1 (i.e., the internal thread of the installation groove 5 is threadedly connected to the outer surface of the high-speed generator shaft 1). A light-reducing groove 4 is provided on one side of the gear 3, a groove 8 is provided on one side of the inner wall of the groove 8, a through groove 9 is provided on one side of the inner wall of the through groove 9, a limiting plate 10 is slidably connected to the inner wall of the through groove 9, a fixing plate 11 is fixedly connected to one end of the limiting plate 10, an anti-loosening rod 7 is fixedly connected to the top end of the limiting plate 10, a circular groove 6 is provided on the bottom surface of the inner wall of the installation groove 5, the interior of the circular groove 6 communicates with the interior of the through groove 9, and the interior of the circular groove 6 is slidably connected to the outer surface of the anti-loosening rod 7.

[0016] Furthermore, a first threaded groove 12 is provided at one end of the fixing plate 11, and a fixing bolt 13 is threadedly connected inside the first threaded groove 12.

[0017] Furthermore, a second threaded groove 14 is provided on one side of the inner wall of the groove 8, and the interior of the second threaded groove 14 is adapted to one end of the fixing bolt 13.

[0018] Furthermore, one end of the anti-loosening rod 7 is slidably adapted to the inside of the fixing groove 2.

[0019] Furthermore, by rotating and screwing gear 3 onto the high-speed generator shaft 1, after gear 3 is installed in place, the circular groove 6 will be aligned with the inside of the fixed groove 2. Then, the fixed plate 11 can be moved to drive the limiting plate 10 to move. Then, the limiting plate 10 will drive the anti-loosening rod 7 to be pushed out from the inside of the circular groove 6. Then, the anti-loosening rod 7 will enter the inside of the fixed groove 2. At the same time, the first threaded groove 12 is aligned with the second threaded groove 14. Then, the fixing bolt 13 is rotated so that one end enters the inside of the second threaded groove 14 and is threadedly connected to it. This fixes the positions of the fixed plate 11, the limiting plate 10, and the anti-loosening rod 7, preventing gear 3 from loosening and rotating on the high-speed generator shaft 1. This ensures that gear 3 will not loosen or fall off the high-speed generator shaft 1, making the connection between the two more stable and ensuring the reliable and secure connection between gear 3 and high-speed generator shaft 1.

[0020] Furthermore, while ensuring a stable connection, this gear structure also incorporates lightweight design. The weight-reducing groove 4 on one side of gear 3 reduces the amount of material used in gear 3, effectively lowering its weight without affecting its basic strength and function. This lightweight design helps improve the overall performance and operating efficiency of the high-speed generator and reduces unnecessary energy loss.

[0021] Structural Description: High-speed generator shaft 1: As the core support component of gear transmission, it provides the mounting base and power transmission path for gear 3. The threads on its outer surface cooperate with the mounting groove 5 to achieve the initial positioning and connection of gear 3. The fixing groove 2 cooperates with the anti-loosening rod 7 to prevent gear 3 from rotating. Fixed groove 2: It is formed on the outer surface of the high-speed generator shaft 1 and is adapted to the anti-loosening rod 7. When the anti-loosening rod 7 is embedded therein, it can restrict the circumferential rotation of the gear 3 relative to the high-speed generator shaft 1 and play an anti-loosening role. Gear 3: A key transmission component of the high-speed generator. It achieves power transmission and speed regulation by cooperating with other gears. The weight reduction groove 4 on one side can reduce its own weight and improve the overall efficiency of the generator.

[0022] Lightening groove 4: Located on one side of gear 3, it effectively reduces the weight of gear 3 by removing some material, while ensuring the strength and function of gear 3, thereby reducing the rotational inertia and energy loss during high-speed operation and achieving lightweight design. Mounting slot 5: Located inside gear 3, the threads on its inner wall are adapted to the threads on the outer surface of high-speed generator shaft 1, and are used to thread gear 3 onto high-speed generator shaft 1 to achieve initial fixation of the two. Circular groove 6: It is formed on the bottom surface of the inner wall of the mounting groove 5 and communicates with the through groove 9. It provides a sliding channel for the anti-loosening slide rod 7, so that the anti-loosening slide rod 7 can extend from the inside of the mounting groove 5 and enter the fixing groove 2 to complete the anti-loosening operation. Anti-loosening rod 7: It slides and adapts to the fixing groove 2. Driven by the limiting plate 10, it extends out from the circular groove 6 and embeds into the fixing groove 2 after the gear 3 is installed in place, preventing the gear 3 from rotating relative to the high-speed generator shaft 1 and enhancing the connection stability. Groove 8: It is formed on one side of gear 3 to accommodate the limiting plate 10 and the fixing plate 11, to provide space for the installation of the fixing bolt 13, and to cooperate with the fixing plate 11 and the fixing bolt 13 to fix the position of the limiting plate 10 and the anti-loosening rod 7. Through groove 9: Located on one side of the inner wall of groove 8, it communicates with circular groove 6 and provides a sliding track for limiting plate 10 and anti-loosening slide rod 7, so that limiting plate 10 can drive anti-loosening slide rod 7 to move and realize anti-loosening operation.

[0023] Limiting plate 10: It slides in groove 8 through through groove 9, which drives the anti-loosening rod 7 to move. Its position is fixed by fixing plate 11 and fixing bolt 13 to ensure that the anti-loosening rod 7 and fixing groove 2 maintain stable cooperation and prevent gear 3 from loosening. Fixed plate 11: It is fixedly connected to the limiting plate 10. Through the cooperation of the first threaded groove 12, the second threaded groove 14, and the fixing bolt 13, the limiting plate 10 is fixed in the groove 8, thereby fixing the position of the anti-loosening rod 7 and ensuring the anti-loosening effect. First threaded groove 12: It is opened at one end of the fixing plate 11 and is threadedly connected to the fixing bolt 13. At the same time, it corresponds to the second threaded groove 14 on the inner wall of the groove 8 and is used to fix the position of the fixing plate 11 and the limiting plate 10.

[0024] Fixing bolt 13: By connecting the first threaded groove 12 and the second threaded groove 14 with threads, the fixing plate 11 is fixed in the groove 8, thereby fixing the limiting plate 10 and the anti-loosening rod 7 to prevent the gear 3 from loosening. The second threaded groove 14 is formed on one side of the inner wall of the groove 8, corresponding to and adapted to the first threaded groove 12, and is used to cooperate with the fixing bolt 13 to fix the position of the fixing plate 11 and the limiting plate 10.

[0025] 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. A lightweight high-speed generator shaft gear, comprising a high-speed generator shaft (1), characterized in that: The high-speed generator shaft (1) has a threaded outer surface with a gear (3). A fixing groove (2) is provided on the threaded outer surface of the high-speed generator shaft (1). An installation groove (5) is provided inside the gear (3). A thread adapted to the outer surface of the high-speed generator shaft (1) is provided inside the installation groove (5). A light-reducing groove (4) is provided on one side of the gear (3). A groove (8) is provided on one side of the gear (3). A through groove (9) is provided on one side of the inner wall of the groove (8). A limiting plate (10) is slidably connected to the inner wall of the through groove (9). A fixing plate (11) is fixedly connected to one end of the limiting plate (10). An anti-loosening rod (7) is fixedly connected to the top of the limiting plate (10). A circular groove (6) is provided on the bottom surface of the inner wall of the installation groove (5).

2. The lightweight high-speed generator shaft gear according to claim 1, characterized in that: The interior of the circular groove (6) is connected to the interior of the through groove (9), and the interior of the circular groove (6) is slidably connected to the outer surface of the anti-loosening rod (7).

3. A lightweight high-speed generator shaft gear according to claim 1 or 2, characterized in that: One end of the fixing plate (11) is provided with a first threaded groove (12), and a fixing bolt (13) is threaded inside the first threaded groove (12).

4. A lightweight high-speed generator shaft gear according to claim 3, characterized in that: A second threaded groove (14) is provided on one side of the inner wall of the groove (8), and the interior of the second threaded groove (14) is adapted to one end of the fixing bolt (13).

5. A lightweight high-speed generator shaft gear according to claim 2, characterized in that: One end of the anti-loosening rod (7) is slidably adapted to the inside of the fixing groove (2).