Adjustable gas turbine power turbine rear baffle dismounting auxiliary tool

Abstract

The utility model relates to gas turbine frock equipment technical field discloses a kind of adjustable gas turbine power turbine rear baffle dismounting auxiliary frock, including frock main body and compression part, frock main body includes at least two groups of circumferential connecting pieces, and the side wall of circumferential connecting piece is equipped with several groups of axial connecting pieces, and compression part includes lower pressing portion, extension and connecting portion, and lower pressing portion and connecting portion are respectively arranged at the two sides of extension, the first end of lower pressing portion is connected with the top end of extension, the first end of connecting portion is connected with the bottom end of extension, and the second end of connecting portion is connected with circumferential connecting piece by adjusting bolt. The utility model can be conveniently adjusted, and good adaptability, and can be conveniently operated, reduce unnecessary collision scratch, effectively improve the maintenance efficiency of power turbine.

Description

Technical Field

[0001] This utility model relates to the technical field of gas turbine tooling equipment, and in particular to an adjustable auxiliary tooling for disassembling and assembling the rear baffle of a gas turbine power turbine. Background Technology

[0002] The backstop of a gas turbine is a critical component ensuring its normal operation. Its installation accuracy and disassembly safety directly affect the gas turbine's operational stability and maintenance efficiency. Currently, Chinese utility model patent ZL202422857658.6 discloses an adjustable gas turbine retaining ring for locking the backstop, ensuring its stability and reliability after installation, and effectively improving the service life of the gas turbine.

[0003] However, the installation and removal of the turbine rear baffle lacks dedicated auxiliary tools. During the installation and removal process, the turbine disc, rear baffle, and surrounding components are easily damaged by collisions and scratches, leading to an increased scrap rate of components and higher maintenance costs. Furthermore, the existing general-purpose tools lack effective positioning and adjustment structures, making it impossible to accurately control the shrinkage of the retaining ring, resulting in difficulties in installing and removing the rear baffle, and excessively long assembly and disassembly cycles. The existing general-purpose tools also have poor adaptability and cannot meet the disassembly and installation requirements of different specifications of turbine rear baffles, resulting in insufficient versatility.

[0004] To solve the above technical problems, it is urgent to design an adjustable, adaptable auxiliary tooling that protects the installation and removal of the rear baffle, so as to ensure the smooth progress of power turbine maintenance work. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by developing an adjustable auxiliary tooling for disassembling and assembling the rear baffle of a gas turbine power turbine. This invention is not only easy to adjust and adaptable, but also convenient to operate, reducing unnecessary collisions and scratches, and effectively improving the maintenance efficiency of the power turbine.

[0006] The technical solution of this utility model to solve the technical problem is as follows: an adjustable gas turbine power turbine rear baffle disassembly and assembly auxiliary tooling, including a tooling body and a clamping component. The tooling body includes at least two sets of circumferential connecting components. Several sets of axial connecting components are provided on the side wall of the circumferential connecting components. The clamping component includes a pressing part, an extension part and a connecting part. The pressing part and the connecting part are respectively arranged on both sides of the extension part. The first end of the pressing part is connected to the top end of the extension part, the first end of the connecting part is connected to the bottom end of the extension part, and the second end of the connecting part is connected to the circumferential connecting component through an adjusting bolt.

[0007] As an optimization, the main body of the tooling is circular, with two sets of circumferential connectors, each in a semi-circular shape. The two sets of circumferential connectors facilitate the assembly and disassembly of the main body of the tooling.

[0008] As an optimization, the axial connector has an axial bolt hole, the circumferential connector has a second circumferential bolt hole, and the second end of the connecting part has a first circumferential bolt hole. By providing the axial bolt hole, it is convenient to connect and fix it to the front end face of the turbine disk with the mounting bolt, ensuring precise positioning and significantly shortening the assembly and disassembly cycle; by providing the second circumferential bolt hole and the first circumferential bolt hole, it is convenient to adjust the bolts to adjust the clamping parts.

[0009] As an optimization, the second circumferential bolt hole is located between two adjacent sets of axial connectors. This allows for the accommodation of the clamping element and provides ample space for radial adjustment of the clamping element.

[0010] As an optimization, a detachable gasket is provided at the bottom of the second end of the pressing part, and a detachable washer is provided at the bottom of the second end of the connecting part. By using the gasket, flexible contact can be achieved, reducing collision and scratch damage to the adjustable retaining ring from the pressing part, thus lowering maintenance costs. Similarly, by using the washer, flexible contact can be achieved, reducing collision and scratch damage to the circumferential connecting parts from the connecting part, further lowering maintenance costs. The detachable design allows for the installation of gaskets and washers of various sizes. By replacing different sizes of washers, the degree of contraction of the adjustable retaining ring can be controlled, adapting to the disassembly and assembly requirements of different rear baffle sizes, improving tooling versatility, and ensuring smooth installation and disassembly of the power turbine rear baffle.

[0011] As an optimization, the clamping component is molded as a single piece. This ensures the overall strength of the clamping component.

[0012] Compared with the prior art, the present invention has the following beneficial effects: By setting the main body of the tooling, clamping components and axial connecting components can be installed. The clamping components allow for radial movement, directly clamping the adjustable retaining ring inwards, facilitating the installation and removal of the rear baffle without contact or collision with other parts. At least two sets of circumferential connecting components facilitate installation from both sides of the turbine disk shaft. The axial connecting components allow for connection and fixation to the front face of the turbine disk via mounting bolts, ensuring precise positioning and significantly shortening the assembly and disassembly cycle. The downward pressing part can penetrate the groove on the turbine disk and insert into the groove of the adjustable retaining ring, clamping it inwards. The extension part connects the downward pressing part and the connecting part. The connecting part connects to the circumferential connecting components. The adjusting bolts allow for rapid radial adjustment of the clamping component's position, precisely controlling the tightening or loosening of the adjustable retaining ring, enabling the adjustable retaining ring to unlock or lock the rear baffle. Furthermore, the adjustable structure can adapt to the disassembly and assembly needs of rear baffles of different specifications, improving the tooling's versatility, shortening the assembly and disassembly cycle of the power turbine rear baffle, and increasing maintenance efficiency. This invention is easy to adjust, has good adaptability, and is easy to operate, reducing unnecessary collisions and scratches, and effectively improving the maintenance efficiency of the power turbine. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model.

[0014] Figure 2 This is a schematic diagram of the structure of the circumferential connector and the axial connector in one embodiment of the present invention.

[0015] Figure 3 This is a schematic diagram of the clamping component in one embodiment of the present invention.

[0016] Figure 4 This is a schematic diagram of the installation of one embodiment of the present invention during use.

[0017] Figure 5 This is a cross-sectional view of one embodiment of the present invention in use.

[0018] Figure 6 for Figure 5 A magnified view of a portion of region A in the middle.

[0019] In the diagram: 1. Tooling body; 2. Clamping component; 3. Circumferential connecting component; 4. Axial connecting component; 5. Pressing part; 6. Extension part; 7. Connecting part; 8. Adjusting bolt; 9. Axial bolt hole; 10. First circumferential bolt hole; 11. Second circumferential bolt hole; 12. Shim; 13. Washer; 14. Adjustable retaining ring; 15. Backplate; 16. Turbine disc; 17. Mounting bolt. Detailed Implementation

[0020] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0021] Example 1 Figures 1 to 3 As one embodiment of this utility model, such as Figures 1 to 3 As shown, an adjustable gas turbine power turbine backgauge disassembly and assembly auxiliary tooling includes a tooling body 1 and a clamping component 2. The tooling body 1 includes at least two sets of circumferential connecting components 3. Several sets of axial connecting components 4 are provided on the side wall of the circumferential connecting components 3. The clamping component 2 includes a pressing part 5, an extension part 6 and a connecting part 7. The pressing part 5 and the connecting part 7 are respectively provided on both sides of the extension part 6. The first end of the pressing part 5 is connected to the top end of the extension part 6, the first end of the connecting part 7 is connected to the bottom end of the extension part 6, and the second end of the connecting part 7 is connected to the circumferential connecting component 3 through an adjusting bolt 8.

[0022] By setting the tooling body 1, the clamping part 2 and the axial connecting part 4 can be installed; by setting the clamping part 2, it can move radially and clamp the adjustable retaining ring 14 inward, thereby facilitating the disassembly and assembly of the rear baffle 15; by setting at least two sets of circumferential connecting parts 3, it is convenient to install from both sides of the turbine disk shaft; by setting the axial connecting part 4, it can be fixed by connecting to the front end face of the turbine disk 16 with the mounting bolt 17; by setting the pressing part 5, it can pass through the groove on the turbine disk 16 and probe into the groove of the adjustable retaining ring 14, thereby clamping the adjustable retaining ring 15. The retaining ring 14 is retracted; the extension part 6 connects the pressing part 5 and the connecting part 7; the connecting part 7 connects to the circumferential connecting part 3; the adjusting bolt 8 allows for rapid radial adjustment of the position of the clamping part 2, precisely controlling the tightening or loosening of the adjustable retaining ring 14, enabling the adjustable retaining ring 14 to unlock or lock the rear baffle 15. The adjustable structure can adapt to the disassembly and assembly requirements of rear baffles of different specifications, improving the versatility of the tooling, shortening the assembly and disassembly cycle of the power turbine rear baffle 15, and improving maintenance efficiency.

[0023] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the main body of the tooling 1 is circular, and there are two sets of circumferential connecting parts 3, which are semi-circular. By setting two sets of circumferential connecting parts 3, it is convenient to assemble and disassemble the main body of the tooling 1.

[0024] like Figure 2 and Figure 3 As shown, the axial connector 4 is provided with an axial bolt hole 9, the circumferential connector 3 is provided with a second circumferential bolt hole 11, and the second end of the connecting part 7 is provided with a first circumferential bolt hole 10. By providing the axial bolt hole 9, it is convenient to connect and fix it to the front end face of the turbine disk 16 by installing the bolt 17; by providing the second circumferential bolt hole 11 and the first circumferential bolt hole 10, it is convenient to adjust the clamping part 2 by adjusting the bolt 8.

[0025] like Figure 1 and Figure 2 As shown, a gap is provided between two adjacent sets of axial connecting parts 4, and a second circumferential bolt hole 11 is provided between two adjacent sets of axial connecting parts 4. This gap can accommodate the clamping part 2, providing sufficient space for radial adjustment of the clamping part 2.

[0026] like Figure 1 and Figure 2As shown, the bottom of the second end of the pressing part 5 is provided with a gasket groove, and a gasket 12 is detachably installed in the gasket groove. The bottom of the second end of the connecting part 7 is provided with a washer groove, which is coaxial with the first circumferential bolt hole 10. A washer 13 is detachably installed in the washer groove. By setting the gasket groove and the gasket 12, the impact and scratch damage of the pressing part 5 to the adjustable retaining ring 14 can be reduced, thus reducing maintenance costs. By setting the washer groove and the washer 13, the impact and scratch damage of the connecting part 7 to the circumferential connecting part 3 can be reduced, thus reducing maintenance costs. The detachable design allows for the installation of gaskets 12 and 13 of various specifications. By replacing different specifications of washer, the degree of contraction of the adjustable retaining ring 14 can be controlled, which can adapt to the disassembly and assembly requirements of different specifications of rear baffles 15, improve the tooling versatility, and ensure the smooth installation and disassembly of the power turbine rear baffle.

[0027] like Figure 3 As shown, the clamping component 2 is integrally formed, which ensures the overall strength of the clamping component 2.

[0028] like Figures 1 to 6 As shown, during use, based on the specifications of the back baffle 15 to be disassembled, determine the shrinkage requirement of the adjustable retaining ring 14, select the corresponding specifications of the washer 12 and washer 13, and install them onto the pressing part 5 and the connecting part 7 respectively; then, the rod of the adjusting bolt 8 passes through the first circumferential bolt hole 10 and the second circumferential bolt hole 11 in sequence and connects with the nut, connecting the assembled clamping part 2 with the circumferential connecting part 3 to complete the overall assembly of the tooling. It should be noted that at this time, the adjusting bolt 8 does not lock the clamping part 2 and the circumferential connecting part 3; then, install two sets of circumferential connecting parts 3 from both sides of the turbine disk shaft. During installation, first, make the pressing part 5 pass through the groove on the front end face of the turbine disk 16 and insert it into the groove of the adjustable retaining ring 14, then connect the axial bolt hole 9 on the axial connecting part 4 with the hole on the front end face of the turbine disk 16. Alignment is achieved by tightening the axial connector 4 and the front end face of the turbine disk 16 with the mounting bolts 17, thus completing the installation of the two sets of circumferential connectors 3 to form the main body of the tooling 1. Next, the lowering part 5 is adjusted so that the shim 12 fits against the side of the adjustable retaining ring 14. Maintenance personnel can tighten the adjusting bolts 8 to move the connecting part 7 towards the circumferential connector 3, causing the extension part 6 to press the lowering part 5 against the adjustable retaining ring 14, thereby causing the adjustable retaining ring 14 to retract. The adjusting bolts 8 can precisely control the tightening or loosening of the adjustable retaining ring 14. After the adjustable retaining ring 14 is fully compressed, maintenance personnel can smoothly remove the rear baffle 15 to complete disassembly. After maintenance is completed, the rear baffle 15 is reinstalled on the turbine disk 16, and the adjusting bolts 8 are loosened to allow the adjustable retaining ring 14 to unfold, locking the rear baffle 15 to complete the installation. This utility model is convenient to adjust, has good adaptability, and is easy to operate, reducing unnecessary collisions and scratches, effectively improving the maintenance efficiency of the power turbine.

[0029] The descriptions of the orientation or relative positional relationships of the structure in this utility model, such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer", are based on the orientation 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 structure referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. An auxiliary tooling for disassembling and assembling an adjustable gas turbine power turbine backgauge, characterized in that: The fixture includes a main body (1) and a clamping component (2). The main body (1) includes at least two sets of circumferential connecting components (3). Several sets of axial connecting components (4) are provided on the side wall of the circumferential connecting component (3). The clamping component (2) includes a pressing part (5), an extension part (6) and a connecting part (7). The pressing part (5) and the connecting part (7) are respectively provided on both sides of the extension part (6). The first end of the pressing part (5) is connected to the top end of the extension part (6), the first end of the connecting part (7) is connected to the bottom end of the extension part (6), and the second end of the connecting part (7) is connected to the circumferential connecting component (3) through an adjusting bolt (8).

2. The auxiliary tooling for disassembling and assembling the adjustable gas turbine power turbine backgauge according to claim 1, characterized in that: The main body of the tooling (1) is circular, and there are two sets of circumferential connecting parts (3), which are semi-circular.

3. The auxiliary tooling for disassembling and assembling the adjustable gas turbine power turbine backgauge according to claim 1, characterized in that: The axial connector (4) is provided with an axial bolt hole (9), the circumferential connector (3) is provided with a second circumferential bolt hole (11), and the second end of the connecting part (7) is provided with a first circumferential bolt hole (10).

4. The auxiliary tooling for disassembling and assembling the adjustable gas turbine power turbine backgauge according to claim 3, characterized in that: The second circumferential bolt hole (11) is located between two adjacent sets of axial connectors (4).

5. The auxiliary tooling for disassembling and assembling the adjustable gas turbine power turbine backgauge according to claim 1, characterized in that: The bottom of the second end of the pressing part (5) is detachably provided with a gasket (12), and the bottom of the second end of the connecting part (7) is detachably provided with a washer (13).

6. The adjustable gas turbine power turbine backgauge disassembly and assembly auxiliary tooling according to any one of claims 1 to 5, characterized in that: The clamping part (2) is integrally formed.

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