A gear box drive for a gas turbine accessory

Abstract

The utility model discloses a kind of for gas turbine accessory gear box transmission device, it is related to gas turbine accessory gear box technical field, including first transmission rod, the first transmission rod one end is provided with sliding slot, the inside of the sliding slot is slidably provided with extension rod, the one end of the extension rod is fixedly connected with second transmission rod, the outer surface of the first transmission rod and second transmission rod is fixedly sleeved with transmission gear.The utility model can freely adjust transmission rod total length by the sliding of extension rod in the sliding slot of first transmission rod, accurately adapt the transmission distance requirement under different working conditions, limit block and limit groove ensure that extension rod moves stably along axial direction, avoid deflection, make transmission gear always keep accurate engagement, solve the problem that traditional fixed length transmission rod cannot be flexibly adjusted, improve the transmission adaptability of gas turbine accessory gear box.

Description

Technical Field

[0001] This utility model relates to the field of gas turbine accessory gearbox technology, specifically to a transmission device for a gas turbine accessory gearbox. Background Technology

[0002] In the transmission system of the accessory gearbox of a gas turbine, the structural rationality and reliability of the transmission device are crucial to the overall performance of the gas turbine, and the transmission rod is one of the important components.

[0003] Traditional transmission devices typically have a fixed-length transmission rod structure, making it difficult to flexibly adjust the transmission distance according to the transmission requirements under different working conditions. For example, when it is necessary to change the transmission path inside the gearbox or adapt to different specifications of accessory equipment, a fixed-length transmission rod may cause the transmission gears to fail to mesh accurately, affecting the smoothness and accuracy of power transmission, and even causing problems such as accelerated gear wear and reduced transmission efficiency. Utility Model Content

[0004] In view of the problems existing in the gearbox transmission device of gas turbine accessories, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a transmission device for a gas turbine accessory gearbox, which solves the problem that the transmission rod structure of the existing gas turbine accessory gearbox transmission device is usually designed with a fixed length, making it difficult to flexibly adjust the transmission distance according to the transmission requirements under different working conditions.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A transmission device for a gas turbine accessory gearbox includes a first transmission rod, one end of which has a groove. An extension rod is slidably disposed inside the groove. One end of the extension rod is fixedly connected to a second transmission rod. A transmission gear is fixedly sleeved on the outer surfaces of the first and second transmission rods. The upper surface of the first transmission rod has symmetrical irregular grooves. Irregular blocks are placed inside each of the two irregular grooves. A fixing mechanism is provided between each of the two irregular blocks and the irregular groove. The irregular blocks are fixedly connected to the interior of the corresponding irregular grooves through corresponding fixing mechanisms. An insert is fixedly connected to one side of each of the two irregular blocks. Each insert has a cavity inside. A spring-loaded mechanism is provided inside each of the two cavities.

[0008] Preferably, the fixing mechanism includes multiple fixing bolts, and fixing holes are started on one side of both irregular blocks. Each fixing bolt is slidably disposed inside the corresponding fixing hole. Two internal threaded holes are symmetrically opened on one side of the first transmission rod, and the two fixing bolts are respectively disposed inside the corresponding two internal threaded holes.

[0009] Preferably, the rebound mechanism includes multiple movable plates, multiple connecting rods, and multiple springs. Each cavity has a through hole on one side. Each connecting rod is slidably disposed inside the corresponding through hole. Each movable plate is fixedly connected to one end of the corresponding connecting rod. Each spring is disposed inside the corresponding cavity and is matched with the corresponding movable plate.

[0010] Preferably, the outer surface of the extension rod is symmetrically provided with multiple slots, each slot being matched with a corresponding insert.

[0011] Preferably, the inner wall of the slide groove is symmetrically provided with limiting grooves, and limiting blocks are slidably arranged inside the two limiting grooves. The two limiting blocks are symmetrically fixedly connected to the outer surface of the extension rod.

[0012] Preferably, one end of each fixing bolt has a polygonal groove.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. This utility model allows for free adjustment of the total length of the transmission rod by sliding the extension rod within the groove of the first transmission rod, precisely adapting to the transmission distance requirements under different working conditions. The limiting block and limiting groove ensure stable axial movement of the extension rod, preventing skewing and ensuring that the transmission gears always maintain accurate meshing. This solves the problem of the inflexible adjustment of traditional fixed-length transmission rods and improves the transmission adaptability of the gas turbine accessory gearbox.

[0015] 2. This utility model uses fixing bolts to secure the irregularly shaped block within the irregularly shaped groove. Utilizing the anti-torsional properties of the irregular structure, it prevents the extension rod from slipping during transmission, ensuring smooth power transmission. The spring-loaded mechanism pushes the moving plate and connecting rod with a spring, automatically ejecting the irregularly shaped block during disassembly, simplifying the maintenance process. Simultaneously, the cooperation between the insert and the slot enhances the structural strength of the extension rod during fixation, preventing loosening due to vibration or other factors. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 For the present utility model Figure 1Side sectional view;

[0019] Figure 3 For the present utility model Figure 1 Enlarged structural diagram of section A in the middle;

[0020] Figure 4 For the present utility model Figure 2 A magnified structural diagram of section B.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. First transmission rod, 2. Extension rod, 3. Second transmission rod, 4. Transmission gear, 5. Irregular block, 6. Insert block, 7. Fixing bolt, 8. Moving plate, 9. Connecting rod, 10. Spring, 11. Limiting block. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model discloses a transmission device for a gas turbine accessory gearbox.

[0025] Reference Figure 1-3 A transmission device for a gas turbine accessory gearbox includes a first transmission rod 1. One end of the first transmission rod 1 has a groove, and an extension rod 2 is slidably disposed inside the groove. One end of the extension rod 2 is fixedly connected to a second transmission rod 3. A transmission gear 4 is fixedly sleeved on the outer surfaces of the first transmission rod 1 and the second transmission rod 3. The upper surface of the first transmission rod 1 has symmetrical irregular grooves. Irregular blocks 5 are placed inside the two irregular grooves. A fixing mechanism is provided between the two irregular blocks 5 and the irregular grooves. The irregular blocks 5 are fixedly connected to the interior of the corresponding irregular grooves through the corresponding fixing mechanism. An insert block 6 is fixedly connected to one side of each of the two irregular blocks 5. Each insert block 6 has a cavity inside, and a spring-back mechanism is provided inside the two cavities.

[0026] An extension rod 2 is slidably mounted within the groove of the first transmission rod 1. Guided by the limiting block 11 and the limiting groove, the extension rod is ensured to move linearly along the axial direction. When the transmission distance needs to be adjusted, the second transmission rod 3 is pulled or pushed, causing the extension rod to extend and retract within the groove, thus changing the total length between the first and second transmission rods to adapt to the transmission requirements under different working conditions.

[0027] To fix that irregular block 5, such as Figure 1-3As shown, the fixing mechanism includes multiple fixing bolts 7. Each of the two irregular blocks 5 has a fixing hole on one side. Each fixing bolt 7 is slidably set inside the corresponding fixing hole. Two internal threaded holes are symmetrically opened on one side of the first transmission rod 1. The two fixing bolts 7 are respectively set inside the corresponding two internal threaded holes. A polygonal groove is opened at one end of each fixing bolt 7.

[0028] Once the device is adjusted to the target length, the irregularly shaped block 5 is fixed into the irregularly shaped groove of the first transmission rod 1 using the fixing bolt 7. The shape matching between the irregularly shaped block and the irregularly shaped groove provides anti-torsional force and prevents the extension rod 2 from slipping during transmission. The polygonal groove design of the fixing bolt requires special tools for operation to ensure reliable locking.

[0029] To facilitate the removal of irregularly shaped block 5, such as Figure 2 and Figure 4 As shown, the rebound mechanism includes multiple movable plates 8, multiple connecting rods 9, and multiple springs 10. Each cavity has a through hole on one side. Each connecting rod 9 is slidably disposed inside the corresponding through hole. Each movable plate 8 is fixedly connected to one end of the corresponding connecting rod 9. Each spring 10 is disposed inside the corresponding cavity and matches the corresponding movable plate 8. Multiple slots are symmetrically provided on the outer surface of the extension rod 2. Each slot matches the corresponding insert block 6.

[0030] When the irregular blocks 5 are installed into the corresponding irregular slots, the two inserts 6 are inserted into the corresponding slots, thereby fixing the extension rod 2. When it is necessary to remove the irregular blocks 5, rotate the two fixing bolts 7, and then use the rebound force of the spring 10 to push the corresponding moving plate 8, so that the irregular blocks 5 can pop out.

[0031] like Figure 1-2 As shown, symmetrical limit grooves are provided on the inner wall of the slide, and limit blocks 11 are slidably provided inside the two limit grooves. The two limit blocks 11 are symmetrically fixedly connected to the outer surface of the extension rod 2.

[0032] The engagement of the limiting block 11 and the limiting groove restricts the movement range of the extension rod, preventing excessive stretching or compression that could damage the structure. At the same time, it ensures that the axis of the transmission rod is always aligned, avoiding stress concentration caused by off-center loading.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A transmission device for a gas turbine accessory gearbox, comprising a first transmission rod (1), characterized in that, A groove is provided at one end of the first transmission rod (1), and an extension rod (2) is slidably arranged inside the groove. A second transmission rod (3) is fixedly connected to one end of the extension rod (2). A transmission gear (4) is fixedly sleeved on the outer surface of the first transmission rod (1) and the second transmission rod (3). A symmetrical groove is provided on the upper surface of the first transmission rod (1). A shaped block (5) is placed inside the two shaped grooves. A fixing mechanism is provided between the two shaped blocks (5) and the shaped grooves. The shaped blocks (5) are fixedly connected to the inside of the corresponding shaped grooves through the corresponding fixing mechanism. An insert (6) is fixedly connected to one side of the two shaped blocks (5). A cavity is provided inside each insert (6). A spring mechanism is provided inside the two cavities.

2. The gearbox transmission device for gas turbine accessories according to claim 1, characterized in that, The fixing mechanism includes multiple fixing bolts (7), and each of the two irregular blocks (5) has a fixing hole on one side. Each fixing bolt (7) is slidably disposed inside the corresponding fixing hole. The first transmission rod (1) has two internal threaded holes symmetrically opened on one side, and the two fixing bolts (7) are respectively disposed inside the corresponding two internal threaded holes.

3. The gearbox transmission device for gas turbine accessories according to claim 1, characterized in that, The rebound mechanism includes multiple movable plates (8), multiple connecting rods (9) and multiple springs (10). Each cavity has a through hole on one side. Each connecting rod (9) is slidably disposed inside the corresponding through hole. Each movable plate (8) is fixedly connected to one end of the corresponding connecting rod (9). Each spring (10) is disposed inside the corresponding cavity and is matched with the corresponding movable plate (8).

4. The gearbox transmission device for gas turbine accessories according to claim 1, characterized in that, The outer surface of the extension rod (2) is symmetrically provided with multiple slots, each of which is matched with a corresponding insert (6).

5. The gearbox transmission device for gas turbine accessories according to claim 1, characterized in that, The inner wall of the slide is symmetrically provided with limiting grooves, and the two limiting grooves are slidably provided with limiting blocks (11) inside each limiting groove. The two limiting blocks (11) are symmetrically fixedly connected to the outer surface of the extension rod (2).

6. The gearbox transmission device for gas turbine accessories according to claim 2, characterized in that, Each of the fixing bolts (7) has a polygonal groove at one end.

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