Hoisting device for split stator component of gas turbine

Abstract

The utility model relates to a gas turbine split stator part hoisting device, and belongs to the technical field of gas turbines. Comprising a lifting ring, a plurality of steel wire rope assemblies, a plurality of lifting hook assemblies and a plurality of connecting pieces, the number of the steel wire rope assemblies, the number of the lifting hook assemblies and the number of the connecting pieces are kept consistent, and the lifting hook assemblies are connected with the lifting ring through the steel wire rope assemblies; the special-shaped lifting hook is connected with the steel wire rope assembly through the connecting buckle, the special-shaped lifting hook can wrap a flange on the split casing, a connecting hole corresponding to a through hole in the flange is formed in the special-shaped lifting hook, and the connecting piece penetrates through the through hole and the connecting hole to connect the special-shaped lifting hook with the flange on the split casing. The stator component can be assembled in a narrow space, reliability and stability of hoisting are met, assembly and disassembly are simple and fast, operation is convenient, and machining difficulty is lowered.

Description

Technical Field

[0001] The utility model relates to a gas turbine split stator component hoisting device, belonging to the technical field of gas turbines. Background Art

[0002] At present, most of the major domestic aviation engines and gas turbines use expansion flow channels. The stator components are surrounded by the outside of the rotor components. The stator components include stator components, casings and guides. The casing is set on the periphery of the stator components and is suspended by the casing. When installing the stator components, there is no lifting structure on the stator components, so it is necessary to lift the casing to achieve the entire stator component. In the actual installation of the stator components, there are assembly tables around them, resulting in a small space for the installation of the stator components. Therefore, the stator components must be in a vertical state during the lifting, and the stator components are divided into two halves for installation, and the casing is also divided into two halves, such as Figure 5 As shown, the casing 5 includes a casing body 53 , a flange 52 and a through hole 51 on the flange 52 . Utility Model Content

[0003] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and provide a gas turbine split stator component hoisting device, which realizes the assembly of the stator components in a narrow space, meets the reliability and stability of the hoisting, and has simple and quick assembly and disassembly, convenient operation, and reduces the difficulty of processing.

[0004] The utility model discloses a gas turbine split stator component lifting device, comprising a lifting ring, a plurality of steel wire rope assemblies, a plurality of hook assemblies and a plurality of connecting pieces, wherein the number of steel wire rope assemblies, dry hook assemblies and connecting pieces are kept consistent, the hook assembly is connected to the lifting ring via the steel wire rope assembly, the hook assembly comprises a connecting buckle and a special-shaped hook, the connecting buckle is rotatably connected to the special-shaped hook, the special-shaped hook is connected to the steel wire rope assembly via the connecting buckle, the special-shaped hook can wrap the flange on the split casing, a connecting hole is provided on the special-shaped hook corresponding to the through hole on the flange, the connecting piece penetrates the through hole and the connecting hole to connect the special-shaped hook to the flange on the split casing.

[0005] The lifting ring is connected to the trolley hook, and the special-shaped hook is connected to the flange on the split casing through a connecting piece, thereby realizing the vertical transportation of the split casing and making the stator component as a whole in a vertical state, so as to adapt to the installation of the stator component in a narrow space. The lifting device has a simple structure and reduces the difficulty of processing. The reliability and stability of the lifting are ensured by adopting a special-shaped hook and wrapping the flange. During installation and disassembly, it is only necessary to connect the special-shaped hook and the flange through a connecting piece, which is simple, fast and easy to operate.

[0006] The special-shaped hook comprises a first part, a second part and a third part, which are connected in sequence, the extension direction of the first part is the same as the extension direction of the third part, the extension direction of the second part is perpendicular to the extension direction of the first part, and connecting holes are arranged on the first part and the third part corresponding to the through holes on the flange, and the flange can be placed between the first part and the third part. The connecting piece passes through the connecting hole on the first part, the through hole on the flange, and the connecting hole on the third part in sequence to connect the special-shaped hook to the flange, and the hook wraps the flange to ensure the reliability of the connection between the hook and the split casing.

[0007] The connecting piece includes a bolt and a nut, the bolt passes through the through hole and the connecting hole, and the nut is connected to the bolt by a thread. The bolt passes through the connecting hole and the through hole in turn and comes out, and then the nut is tightened on the end of the bolt, so as to connect the special-shaped hook to the split receiver. The connection by the bolt and nut has low cost, high reliability, and is easy to install and disassemble.

[0008] The connecting buckle comprises a connecting shaft and an arc-shaped member, the arc-shaped member and the connecting shaft are arranged in a D shape, the two ends of the arc-shaped member are respectively sleeved on the outer periphery of the two ends of the connecting shaft, and are movably connected with the connecting shaft, the connecting shaft passes through the special-shaped hook and is rotatably connected with the special-shaped hook, and the arc-shaped member is connected with the wire rope assembly. By rotatably connecting the connecting shaft with the special-shaped hook, the arbitrary rotation of the arc-shaped member is realized, and by movably connecting the arc-shaped member with the connecting shaft, the flexibility of the arc-shaped member is further increased.

[0009] The steel wire rope assembly comprises a steel wire rope, and connecting rings are arranged at both ends of the steel wire rope, and the connecting rings respectively connect the steel wire rope with the lifting ring and the hook assembly. The connecting rings are interlocked with the lifting ring, and the connecting rings are interlocked with the connecting buckles in the hook assembly to ensure the reliability of the connection.

[0010] The number of the steel wire rope assemblies is three, and the length of the steel wire ropes in the steel wire rope assemblies at both ends is greater than the length of the steel wire ropes in the middle. The connecting ring at the bottom end of the steel wire rope in the middle is connected to the middle of the flange, and the connecting rings at the bottom end of the steel wire ropes at both ends are placed on both sides of the flange to ensure that the split casing is balanced in force and ensure the stability of the split casing during transportation.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The utility model connects the special-shaped hook to the flange on the split casing through a connecting piece, thereby realizing the vertical transportation of the split casing and making the stator component as a whole in a vertical state, so as to adapt to the installation of the stator component in a narrow space. The lifting device has a simple structure and reduces the difficulty of processing. By adopting a special-shaped hook and wrapping the flange, the reliability and stability of the lifting are ensured. During installation and disassembly, it is only necessary to connect the special-shaped hook and the flange through the connecting piece, which is simple, fast and easy to operate. By rotatably connecting the connecting buckle and the special-shaped hook, the movement between the special-shaped hook and the connecting buckle is made more flexible.

[0013] (2) The connecting buckle includes a connecting shaft and an arc-shaped member. The arc-shaped member and the connecting shaft are arranged in a D shape. The two ends of the arc-shaped member are respectively sleeved on the outer periphery of the two ends of the connecting shaft and are movably connected to the connecting shaft. The connecting shaft passes through the special-shaped hook and is rotatably connected to the special-shaped hook. The arc-shaped member is connected to the wire rope assembly. By rotatably connecting the connecting shaft with the special-shaped hook, the arbitrary rotation of the arc-shaped member is realized. By movably connecting the arc-shaped member with the connecting shaft, the flexibility of the arc-shaped member is further increased.

[0014] (3) There are three wire rope assemblies, and the length of the wire ropes in the wire rope assemblies at both ends is greater than the length of the wire ropes in the middle wire rope assembly. The connecting ring at the bottom of the wire rope in the middle is connected to the middle of the flange, and the connecting rings at the bottom of the wire ropes at both ends are placed on both sides of the flange to ensure balanced force on the split casing and ensure stability during transportation of the split casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of Embodiment 1 of the present utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the hook assembly;

[0017] Figure 3 It is a schematic diagram of the connection status between the hook assembly and the casing;

[0018] Figure 4 It is a three-dimensional structural diagram of the connecting buckle;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the split receiver.

[0020] In the figure: 1, lifting ring; 2, wire rope assembly; 21, wire rope; 22, connecting ring; 3, hook assembly; 31, connecting buckle; 311, arc-shaped member; 312, connecting shaft; 32, special-shaped hook; 321, first part; 322, connecting hole; 323, second part; 324, third part; 4, connecting member; 5, casing; 51, through hole; 52, flange; 53, casing body. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with embodiments:

[0022] Example 1

[0023] like Figure 1 to Figure 4 As shown, a gas turbine split stator component lifting device according to the utility model comprises a lifting ring 1, three wire rope assemblies 2, three hook assemblies 3 and three connecting members 4, as shown in FIG. Figure 1 As shown; the hook assembly 3 is connected to the lifting ring 1 through the wire rope assembly 2, the hook assembly 3 includes a connecting buckle 31 and a special-shaped hook 32, the connecting buckle 31 is rotatably connected to the special-shaped hook 32, the special-shaped hook 32 is connected to the wire rope assembly 2 through the connecting buckle 31, the special-shaped hook 32 can wrap the flange 52 on the split casing 5, and a connecting hole 322 is set on the special-shaped hook 32 corresponding to the through hole 51 on the flange 52, and the connecting piece 4 passes through the through hole 51 and the connecting hole 322 to connect the special-shaped hook 32 with the flange 52 on the split casing 5.

[0024] The special-shaped hook 32 includes a first portion 321, a second portion 323 and a third portion 324, which are connected in sequence. The extension direction of the first portion 321 is the same as the extension direction of the third portion 324, and the extension direction of the second portion 323 is perpendicular to the extension direction of the first portion 321. The first portion 321 and the third portion 324 are provided with connecting holes 322 corresponding to the through holes 51 on the flange 52, and the flange 52 can be placed between the first portion 321 and the third portion 324. Figure 1-Figure 3 shown.

[0025] The connecting member 4 includes a bolt and a nut. The bolt passes through the through hole 51 and the connecting hole 322 , and the nut is connected to the bolt through threads.

[0026] The connecting buckle 31 includes a connecting shaft 312 and an arc-shaped member 311. Figure 4 As shown, the arc-shaped member 311 and the connecting shaft 312 are arranged in a D shape, and the two ends of the arc-shaped member 311 are respectively sleeved on the outer periphery of the two ends of the connecting shaft 312 and are movably connected to the connecting shaft 312. The connecting shaft 312 passes through the special-shaped hook 32 and is rotatably connected to the special-shaped hook 32. The arc-shaped member 311 is connected to the wire rope assembly 2.

[0027] The number of wire rope assemblies 2 is three, and the length of the wire rope 21 in the wire rope assemblies 2 at the two ends is greater than the length of the wire rope 21 in the middle wire rope assembly 2. The length of the wire rope 21 at the two ends is 1164 mm, and the length of the wire rope 21 in the middle is 1000 mm. At this time, the angle between the wire ropes at the two ends and the wire rope in the middle is 18 degrees. Figure 1As shown, connecting rings 22 are provided at both ends of the steel wire rope 21, and the connecting rings 22 respectively connect the steel wire rope 21 to the lifting ring 1 and the hook assembly 3. The connecting ring 22 is interlocked with the lifting ring 1, and the connecting ring 22 is interlocked with the connecting buckle 31 in the hook assembly 3 to ensure the reliability of the connection.

[0028] Working process: The bolts are sequentially passed through the connection holes 322 on the first part 321 of the special-shaped hook 32, the through holes 51 on the flange 52, and the connection holes 322 on the third part 324, and then the nuts are tightened with the ends of the bolts to connect the special-shaped hooks 32 to the split casing 5. The three special-shaped hooks 32 are all connected to the flange 52 in this way, and then the trolley hook is connected to the lifting ring 1, thereby realizing the vertical transportation of the split casing 5, so that the stator components are in a vertical state as a whole, so as to adapt to the installation of the stator components in a narrow space.

[0029] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up, and down, does not constitute a limitation of the present invention, but is only for the convenience of description.

Claims

1. A gas turbine split stator component hoisting device, characterized in that: The invention comprises a lifting ring (1), a plurality of steel wire rope assemblies (2), a plurality of hook assemblies (3) and a plurality of connecting pieces (4). The number of the steel wire rope assemblies (2), the plurality of hook assemblies (3) and the connecting piece (4) is consistent. The hook assembly (3) is connected to the lifting ring (1) through the steel wire rope assembly (2). The hook assembly (3) comprises a connecting buckle (31) and a special-shaped hook (32). The connecting buckle (31) is rotatably connected to the special-shaped hook (32). The special-shaped hook (32) is connected to the steel wire rope assembly (2) through the connecting buckle (31). The special-shaped hook (32) can wrap a flange (52) on a split casing (5). A connecting hole (322) is provided on the special-shaped hook (32) corresponding to a through hole (51) on the flange (52). The connecting piece (4) penetrates the through hole (51) and the connecting hole (322) to connect the special-shaped hook (32) to the flange (52) on the split casing (5).

2. The gas turbine split stator component hoisting device according to claim 1, characterized in that: The special-shaped hook (32) includes a first part (321), a second part (323) and a third part (324). The first part (321), the second part (323) and the third part (324) are connected in sequence. The extension direction of the first part (321) is the same as the extension direction of the third part (324). The extension direction of the second part (323) is perpendicular to the extension direction of the first part (321). Connecting holes (322) are provided on the first part (321) and the third part (324) corresponding to the through holes (51) on the flange (52). The flange (52) can be placed between the first part (321) and the third part (324).

3. The gas turbine split stator component hoisting device according to claim 2, characterized in that: The connecting member (4) comprises a bolt and a nut, the bolt passes through the through hole (51) and the connecting hole (322), and the nut is connected to the bolt via a thread.

4. The gas turbine split stator component hoisting device according to claim 1, characterized in that: The connecting buckle (31) comprises a connecting shaft (312) and an arc-shaped member (311). The arc-shaped member (311) and the connecting shaft (312) are arranged in a D shape. Two ends of the arc-shaped member (311) are respectively sleeved on the outer periphery of two ends of the connecting shaft (312) and are movably connected to the connecting shaft (312). The connecting shaft (312) passes through the special-shaped hook (32) and is rotatably connected to the special-shaped hook (32). The arc-shaped member (311) is connected to the wire rope assembly (2).

5. The gas turbine split stator component hoisting device according to any one of claims 1 to 4, characterized in that: The wire rope assembly (2) comprises a wire rope (21). Connecting rings (22) are arranged at both ends of the wire rope (21). The connecting rings (22) respectively connect the wire rope (21) to the lifting ring (1) and the lifting hook assembly (3).

6. The gas turbine split stator component hoisting device according to claim 5, characterized in that: The number of the steel wire rope assemblies (2) is three, and the length of the steel wire ropes (21) in the steel wire rope assemblies (2) at the two ends is greater than the length of the steel wire rope (21) in the steel wire rope assembly (2) in the middle.

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