Gas turbine transition section dismounting and mounting tool and gas turbine transition section mounting method

Abstract

The invention provides a gas turbine transition section dismounting and mounting tool and a gas turbine transition section mounting method. The gas turbine transition section disassembling and assembling tool comprises a connecting frame used for being connected with an air cylinder of a gas turbine; the feeding frame has a first preset size in the first direction, the first end, in the first direction, of the feeding frame is connected with the connecting frame, the feeding frame can rotate relative to the connecting frame, and the extending direction of the rotating axis of the feeding frame is the first direction. The moving frame is movably arranged on the feeding frame in the first direction; the first moving part is arranged on the feeding frame, and the first moving part can drive the moving frame to move in the first direction; and the clamp is used for clamping the transition section, and the clamp is connected with the movable frame. Therefore, the gas turbine transition section disassembling and assembling tool has the advantage that the transition section of the gas turbine can be disassembled and assembled conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of workpiece disassembly and assembly, and in particular to a gas turbine transition section disassembly and assembly tool and a gas turbine transition section installation method. Background Art

[0002] The transition section of the combustion chamber of a heavy-duty gas turbine product is a welded part formed from medium-thick sheet metal. It has a special-shaped cylinder structure, with a circular air inlet at the front end gradually transitioning to a fan-shaped square air outlet at the rear end. The intermediate structure is made up of 13 to 24 smooth sections depending on the type. According to the design, the service life of the transition section is approximately 2000-4000 hours, and it needs to be disassembled and replaced in approximately 2 to 3 years, or in the event of abnormal accidents such as ignition failure or deflagration, the replacement time needs to be advanced. The replacement and maintenance of the combustion chamber are all carried out with the cylinder buckled, but the space inside the cylinder and on-site is small, and more automated assembly tools are needed to assist in the assembly of the transition section, quickly install the transition section to the working position required by the design, and ensure that the installation position and size meet the design requirements. The assembly tools in the related technology are inefficient, large in size, and take a long time to load. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present invention provides a gas turbine transition section disassembly and assembly tool and a gas turbine transition section installation method.

[0004] The disassembly and assembly tool of the transition section of a combustion engine according to an embodiment of the present invention comprises:

[0005] A connecting frame, the connecting frame is used to be connected to the cylinder of the combustion engine;

[0006] A feed frame, wherein the feed frame has a first preset size in a first direction, a first end of the feed frame in the first direction is connected to the connecting frame, the feed frame can rotate relative to the connecting frame, and an extension direction of a rotation axis of the feed frame is the first direction;

[0007] A movable frame, the movable frame being movably arranged on the feeding frame along the first direction;

[0008] A first moving part, the first moving part is arranged on the feeding frame, and the first moving part can drive the moving frame to move in the first direction;

[0009] A clamp is used to clamp the transition section, and the clamp is connected to the moving frame.

[0010] Therefore, the gas turbine transition section disassembly and assembly tool according to the embodiment of the present invention has the advantage of being easy to disassemble and assemble the transition section of the gas turbine.

[0011] In some embodiments, the movable frame is provided with a second movable portion, the second movable portion is connected to the clamp, and the second movable portion can drive the clamp to move in the first direction.

[0012] In some embodiments, the second movable portion includes a second lead screw, the length direction of the second lead screw is the first direction, the clamp is arranged on the outer peripheral side of the second lead screw, the internal thread on the inner side of the clamp is threadedly connected with the external thread on the outer peripheral side of the second lead screw, and the second lead screw can move in the first direction relative to the movable frame.

[0013] In some embodiments, the second movable portion includes the second lead screw, a second limiting portion, a second nut and a second driver. The second nut is rotatably disposed on the movable frame. The second nut is sleeved on the outer peripheral side of the second lead screw. The internal thread on the inner side of the second nut is threadedly connected with the external thread on the outer peripheral side of the second lead screw. The second limiting portion cooperates with the second lead screw to limit the movement of the second lead screw along the first direction. The second driver is connected to the second nut to drive the second nut to rotate.

[0014] In some embodiments, the outer surface of the second lead screw has a limiting groove, and the limiting groove extends along the first direction;

[0015] The second limiting portion is arranged on the movable frame, and the second limiting portion includes a limiting block extending into the limiting groove, the shape and size of the limiting block are adapted to the shape and size of the limiting groove, and the limiting block is slidably connected to the limiting groove in the first direction.

[0016] In some embodiments, the connecting frame includes

[0017] A first annular frame, wherein the first annular frame is an annular structure, and a thickness direction of the first annular frame is the first direction;

[0018] A rotating rack, the rotating rack is arranged on the first annular frame, and the rotating rack is an arc-shaped rack or an annular rack;

[0019] A limiting member, wherein the limiting member is connected to the first end of the feed frame, the limiting member is rotatably connected to the first annular frame, and the extending direction of the rotation axis of the limiting member is the first direction;

[0020] A rotation driver, wherein a gear is arranged on the output shaft of the rotation driver, the gear is meshed with the rotation rack, and the rotation driver is arranged on the limiter.

[0021] In some embodiments, the first annular frame is provided with a plurality of connection holes penetrating therethrough along the first direction;

[0022] The rotation axis of the limiter passes through the axial center position of the second lead screw and the center position of the first annular frame;

[0023] At least a portion of the second lead screw is located within the feed frame;

[0024] The first moving part and the second moving part cooperate to move the clamp to a side of the connecting frame facing away from the feeding frame.

[0025] In some embodiments, the rotating rack is an arc-shaped rack, and the first annular frame is provided with two symmetrically arranged rotating racks;

[0026] There are two of each of the limiter and the rotation driver. The two rotation drivers are arranged on the two limiters in a one-to-one correspondence, and the two gears on the two rotation drivers are meshed with the two rotation racks in a one-to-one correspondence.

[0027] In some embodiments, the feed frame includes a second annular frame, a third annular frame and a plurality of connecting rods, the connecting rods extend along the first direction, and the second annular frame and the third annular frame are connected by the plurality of connecting rods;

[0028] The second annular frame is connected to the limiting member;

[0029] The movable frame is movably disposed on at least a portion of the plurality of connecting rods along the first direction;

[0030] The first moving part includes a first screw and a first driver. The first screw is threadedly connected to the moving frame. The first screw can rotate relative to the second annular frame and the third annular frame. The first driver is arranged on the third annular frame. The first driver is connected to the first screw and can drive the first screw to rotate.

[0031] The present invention also proposes a method for installing a transition section of a gas turbine using the above-mentioned gas turbine transition section disassembly and assembly tool, comprising the following steps:

[0032] S1. Use a fixture to set the transition section;

[0033] S2. Use a lifting tool to lift the engine transition section disassembly and assembly tool, and connect the connecting frame to the flange on the engine cylinder;

[0034] S3, rotating the feed frame so as to rotate the transition section in the circumferential direction to the installation position;

[0035] S4. Use at least one of the first moving part and the second moving part to drive the clamp to move in the first direction so as to move the transition section to the installation position in the first direction, and install the transition section into the combustion engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of a disassembly and assembly tool for a transition section of a gas turbine according to an embodiment of the present invention.

[0037] Figure 2 It is a schematic diagram of a disassembly and assembly tool for a transition section of a gas turbine according to an embodiment of the present invention.

[0038] Figure 3 is a schematic diagram of a second lead screw according to an embodiment of the present invention.

[0039] Figure 4 is a schematic diagram of a connecting frame according to an embodiment of the present invention.

[0040] Figure 5 is a schematic diagram of a connecting frame according to an embodiment of the present invention.

[0041] Figure 6 Schematic diagram of the installation of a transition section according to an embodiment of the present invention.

[0042] Figure 7 Schematic diagram of the installation of a transition section according to an embodiment of the present invention.

[0043] Figure 8 Schematic diagram of the installation of a transition section according to an embodiment of the present invention.

[0044] Reference numerals:

[0045] 1. connecting frame, 11. first annular frame, 12. rotating rack, 13. limiting member, 14. rotating driver, 15. connecting hole;

[0046] 2. feeding frame, 21. second annular frame, 22. third annular frame, 23. connecting rod;

[0047] 3. Mobile rack;

[0048] 4. Fixture;

[0049] 5. First lead screw, 51. First driver, 52. Second lead screw, 53. Limiting groove. DETAILED DESCRIPTION

[0050] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0051] The following describes the disassembly and assembly tool of the transition section of the combustion engine according to the embodiment of the present invention with reference to the accompanying drawings. Figures 1 to 8 As shown, the engine transition section disassembly and assembly tool according to an embodiment of the present invention includes a connecting frame 1, a feeding frame 2, a moving frame 3, a first moving part and a clamp 4.

[0052] The connecting frame 1 is used to connect to the cylinder of the combustion engine. The feed frame 2 has a first preset size in the first direction, the first end of the feed frame 2 in the first direction is connected to the connecting frame 1, the feed frame 2 can rotate relative to the connecting frame 1, and the extension direction of the rotation axis of the feed frame 2 is the first direction.

[0053] The movable frame 3 is movably arranged on the feeding frame 2 along the first direction. The first moving part is arranged on the feeding frame 2, and the first moving part can drive the movable frame 3 to move in the first direction. The clamp 4 is used to clamp the transition section, and the clamp 4 is connected to the movable frame 3.

[0054] According to the embodiment of the present invention, the disassembly and assembly tool for the transition section of the gas turbine is provided with a movable frame 3 on the feed frame 2, and the clamp 4 is connected to the movable frame 3, so that when the first movable part can drive the movable frame 3 to move in the first direction, the clamp 4 and the transition section on the clamp 4 can be driven to move in the first direction. Moreover, the feed frame 2 can rotate relative to the connecting frame 1. After the connecting frame 1 is connected to the flange on the gas cylinder, the feed frame 2 can be rotated to adjust the clamp 4 (and the position of the transition section thereon) in the circumferential direction, and then the first movable part is used to adjust the position of the clamp 4 (and the position of the transition section thereon) in the first direction, so as to facilitate the disassembly and assembly of the transition section of the gas turbine.

[0055] Therefore, the gas turbine transition section disassembly and assembly tool according to the embodiment of the present invention has the advantage of being easy to disassemble and assemble the transition section of the gas turbine.

[0056] In some embodiments, the mobile frame 3 is provided with a second moving part, the second moving part is connected to the clamp 4, and the second moving part can drive the clamp 4 to move in the first direction. In other words, the mobile frame 3 is connected to the furniture 4 through the second moving part, so that the second moving part can drive the clamp 4 to move in the first direction, and the first moving part and the second moving part cooperate to perform secondary transmission, thereby further increasing the moving range of the clamp 4, and thus facilitating the disassembly and assembly of the transition section.

[0057] like Figures 1 to 3As shown, in some embodiments, the second moving part includes a second lead screw 52, ​​the length direction of the second lead screw 52 is the first direction, the clamp 4 is sleeved on the outer peripheral side of the second lead screw 52, ​​the inner internal thread of the clamp 4 is threadedly connected with the outer external thread of the outer peripheral side of the second lead screw 52, ​​and the second lead screw 52 can move relative to the movable frame 3 in the first direction. Specifically, the second lead screw 52 can move relative to the movable frame 3 in the first direction, thereby driving the clamp 4 (and the transition section on the clamp 4) thereon to move in the first direction. For example, the second lead screw 52 is threadedly connected to the movable frame 3. Alternatively, the second lead screw 52 is connected to the movable frame 3 through a lead screw transmission device.

[0058] In some embodiments, the second moving part includes a second lead screw 52, ​​a second limiting part, a second nut and a second driver. The second nut is rotatably arranged on the moving frame 3, the second nut is sleeved on the outer peripheral side of the second lead screw 52, ​​the inner internal thread of the second nut is threadedly connected with the outer thread of the outer peripheral side of the second lead screw 52, ​​the second limiting part cooperates with the second lead screw 52 to limit the second lead screw 52 to move (slide) in the first direction, and the second driver is connected to the second nut to drive the second nut to rotate. Specifically, the second driver drives the second nut to rotate, and the second nut and the second lead screw 52 perform lead screw transmission, so that the second lead screw 52 moves in the first direction under the limitation of the second limiting part, so as to drive the fixture 4 to move in the first direction. For example, the second driver is a motor.

[0059] like Figure 2 and Figure 3 As shown, in some embodiments, the outer surface of the second lead screw 52 has a limiting groove 53, and the limiting groove 53 extends along the first direction. The second limiting portion is arranged on the mobile frame 3, and the second limiting portion includes a limiting block extending into the limiting groove 53, and the shape and size of the limiting block are adapted to the shape and size of the limiting groove 53, and the limiting block is slidably connected with the limiting groove 53 in the first direction. Specifically, the limiting groove 53 is a groove body concave on the outer surface of the second lead screw 52, ​​and the limiting block is located on the inner side of the second limiting portion. The second limiting portion is fixed on the mobile frame 3, so that the limiting block can be fixed relative to the mobile frame 3. And the limiting block extends into the limiting groove 53 to limit the second lead screw 52, ​​preventing the second lead screw 52 from rotating, so that when the second nut rotates, the second lead screw 52 can move in the first direction. For example, the outer peripheral contour of the projection of the limiting groove and the limiting block in the cross section perpendicular to the first direction is a rectangle.

[0060] In some embodiments, the outer peripheral contour of the projection of the cross section of the limiting groove and the limiting block in a direction perpendicular to the first direction is a trapezoid, and the longer bottom side (lower bottom) of the cross section of the limiting groove and the limiting block is adjacent to the axial center position of the second lead screw 52 .

[0061] In some embodiments, the diameter of the second screw 52 is greater than or equal to 0.1 meter and less than or equal to 0.4 meter. For example, the diameter of the second screw 52 is 0.2 meter.

[0062] like Figures 1 to 8 As shown, in some embodiments, the connecting frame 1 includes a first annular frame 11 , a rotating rack 12 , a limiting member 13 and a rotating driver 14 .

[0063] The first annular frame 11 is an annular structure, the thickness direction of the first annular frame 11 is the first direction, and the axial direction of the first annular frame 11 is the first direction. Specifically, the first annular frame 11 is provided with a plurality of connection holes 15 penetrating therethrough in the first direction, and can be connected to the flange on the gas cylinder through the connection holes 15 and bolts, that is, the first annular frame 11 is used to be connected to the cylinder. The plurality of connection holes 15 are arranged on the first annular frame 11 at intervals along the circumferential direction, and the outer peripheral surface of the first annular frame 11 includes two positioning planes arranged in opposite directions.

[0064] The rotating rack 12 is arranged on the first annular frame 11. The rotating rack 12 is an arc-shaped rack or an annular rack. Specifically, the rotating rack 12 is an arc-shaped rack, and two symmetrically arranged rotating racks 12 are arranged on the first annular frame 11.

[0065] The stopper 13 is connected to the first end of the feed frame 2, and the stopper 13 is rotationally connected to the first annular frame 11, and the extension direction of the rotation axis of the stopper 13 is the first direction. The rotation axis of the stopper 13 passes through the axial center position of the second lead screw 52 and the center position of the first annular frame 11. Specifically, the stopper 13 is an arc-shaped plate. For example, at least part of the stopper 13 is located outside the first annular frame 11 and is slidably connected to the first annular frame 11, and the stopper 13 can slide along the circumference of the first annular frame 11.

[0066] A gear is provided on the output shaft of the rotation driver 14, and the gear is meshed with the rotation rack 12. The rotation driver 14 is provided on the stopper 13. Specifically, there are two stoppers 13 and two rotation drivers 14, and the two rotation drivers 14 are provided on the two stoppers 13 in a one-to-one correspondence, and the two gears on the two rotation drivers 14 are meshed with the two rotation racks 12 in a one-to-one correspondence. Therefore, when the driving chamber 14 rotates, the two gears can move relative to the two rotation racks 12, respectively, so as to drive the feed frame 2 to rotate relative to the connecting frame 1. For example, the rotation driver 14 is a motor.

[0067] like Figure 1 and Figure 2 , Figure 6 and Figure 8As shown, in some embodiments, the feed frame 2 includes a second annular frame 21, a third annular frame 22 and a plurality of connecting rods 23. The connecting rods 23 extend along the first direction, and the second annular frame 21 and the third annular frame 22 are connected by the plurality of connecting rods 23. Specifically, the second annular frame 21 is a rectangular frame body, and the third annular frame 22 includes two oppositely arranged support rods and two oppositely arranged arc-shaped rod bodies protruding outward. The second annular frame 21 and the third annular frame 22 are connected by four connecting rods 23.

[0068] The second annular frame 21 is connected (through bolts) to the stopper 13. The mobile frame 3 is movably arranged on at least part of the plurality of connecting rods 23 along the first direction. Specifically, two connecting rods 23 are provided with slide rails extending along the first direction, and the bottom of the mobile frame 3 is slidably connected to the slide rails.

[0069] The first moving part includes a first lead screw 5 and a first driver 51. The first lead screw 5 is threadedly connected to the moving frame 3. The first lead screw 5 can rotate relative to the second annular frame 21 and the third annular frame 22. The first driver 51 is arranged on the third annular frame 22. The first driver 51 is connected to the first lead screw 5 and can drive the first lead screw 5 to rotate. Specifically, the first lead screw 5 extends along the first direction. When the first driver 51 drives the first lead screw 5 to rotate, the first lead screw 5 and the moving frame 3 perform lead screw transmission, thereby driving the moving frame 3 to move in the first direction. For example, the first driver 51 is a motor.

[0070] In some embodiments, at least a portion of the second screw 52 is located in the feed frame 2. The first movable portion and the second movable portion cooperate to move the clamp 4 to the side of the connecting frame 1 facing away from the feed frame 2. Specifically, when installing the transition section, the clamp 4 can clamp the transition section in the feed frame 2. The first movable portion and the second movable portion cooperate to move the transition section on the clamp 4 to the side of the connecting frame 1 facing away from the feed frame 2. The disassembly and assembly tooling of the transition section of the gas turbine according to the present invention has a high degree of automated assembly, reduces loading and positioning time, and improves the installation efficiency of the transition section; the structure is compact, and the size of the tooling is reduced, so that the tooling can be applied to a variety of environments, especially on-site working environments.

[0071] The present invention also proposes a method for installing a transition section of a gas turbine according to the gas turbine transition section disassembly and assembly tool of the present invention. The method for installing a transition section of a gas turbine according to an embodiment of the present invention comprises the following steps:

[0072] S1. Use the fixture 4 to clamp the transition section. Figure 6 As shown, the transition section is connected to the fixture 4 to complete the connection between the tooling and the workpiece.

[0073] S2, using a lifting tool to lift the engine transition section disassembly and assembly tool, and connect the connecting frame 1 to the flange on the cylinder of the engine. Specifically, the connecting frame 1 is connected to the flange on the cylinder of the engine by bolts.

[0074] S3. Rotate the feed rack 2 to rotate the transition section in the circumferential direction to the installation position, so that the transition section can be aligned with the installation position in the circumferential direction.

[0075] S4, using at least one of the first moving part and the second moving part to drive the clamp 4 to move in the first direction so as to move the transition section to the installation position in the first direction, and install the transition section into the combustion engine. Figure 7 As described above, the second moving part can be used to drive the clamp 4 and the transition section to complete the first-level feeding, and then Figure 8 As shown, the secondary feeding is completed by using the first moving part fixture 4 and the transition section.

[0076] Therefore, the method for installing a transition section of a gas engine according to an embodiment of the present invention has the advantage of being easy to install the transition section of the gas engine.

[0077] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0078] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0079] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0080] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0081] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0082] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A gas turbine transition section disassembly and assembly tool, characterized in that: include: A connecting frame, the connecting frame is used to be connected to the cylinder of the combustion engine; A feed frame, wherein the feed frame has a first preset size in a first direction, a first end of the feed frame in the first direction is connected to the connecting frame, the feed frame can rotate relative to the connecting frame, and an extension direction of a rotation axis of the feed frame is the first direction; A movable frame, the movable frame being movably arranged on the feeding frame along the first direction; A first moving part, the first moving part is arranged on the feeding frame, and the first moving part can drive the moving frame to move in the first direction; A clamp is used to clamp the transition section, and the clamp is connected to the moving frame.

2. The gas turbine transition section disassembly and assembly tool according to claim 1, characterized in that: The movable frame is provided with a second movable part, the second movable part is connected to the clamp, and the second movable part can drive the clamp to move in the first direction.

3. The gas turbine transition section disassembly and assembly tool according to claim 2, characterized in that: The second movable part includes a second lead screw, the length direction of the second lead screw is the first direction, the clamp is arranged on the outer peripheral side of the second lead screw, the internal thread on the inner side of the clamp is threadedly connected with the external thread on the outer peripheral side of the second lead screw, and the second lead screw can move in the first direction relative to the movable frame.

4. The gas turbine transition section disassembly and assembly tool according to claim 3, characterized in that: The second moving part includes the second lead screw, a second limiting part, a second nut and a second driver. The second nut is rotatably disposed on the moving frame. The second nut is sleeved on the outer peripheral side of the second lead screw. The internal thread on the inner side of the second nut is threadedly connected with the external thread on the outer peripheral side of the second lead screw. The second limiting part cooperates with the second lead screw to limit the second lead screw to move along the first direction. The second driver is connected to the second nut to drive the second nut to rotate.

5. The gas turbine transition section disassembly and assembly tool according to claim 4, characterized in that: The outer surface of the second lead screw has a limiting groove, and the limiting groove extends along the first direction; The second limiting portion is arranged on the movable frame, and the second limiting portion includes a limiting block extending into the limiting groove, the shape and size of the limiting block are adapted to the shape and size of the limiting groove, and the limiting block is slidably connected to the limiting groove in the first direction.

6. The gas turbine transition section disassembly and assembly tool according to any one of claims 3 to 5, characterized in that: The connecting frame comprises A first annular frame, wherein the first annular frame is an annular structure, and a thickness direction of the first annular frame is the first direction; A rotating rack, the rotating rack is arranged on the first annular frame, and the rotating rack is an arc-shaped rack or an annular rack; A limiting member, wherein the limiting member is connected to the first end of the feed frame, the limiting member is rotatably connected to the first annular frame, and the extending direction of the rotation axis of the limiting member is the first direction; A rotation driver, wherein a gear is arranged on the output shaft of the rotation driver, the gear is meshed with the rotation rack, and the rotation driver is arranged on the limiter.

7. The gas turbine transition section disassembly and assembly tool according to claim 6, characterized in that: The first annular frame is provided with a plurality of connection holes penetrating therethrough along the first direction; The rotation axis of the limiter passes through the axial center position of the second lead screw and the center position of the first annular frame; At least a portion of the second lead screw is located within the feed frame; The first moving part and the second moving part cooperate to move the clamp to a side of the connecting frame facing away from the feeding frame.

8. The gas turbine transition section disassembly and assembly tool according to claim 6, characterized in that: The rotating rack is an arc-shaped rack, and the first annular frame is provided with two symmetrically arranged rotating racks; There are two of each of the limiter and the rotation driver. The two rotation drivers are arranged on the two limiters in a one-to-one correspondence, and the two gears on the two rotation drivers are meshed with the two rotation racks in a one-to-one correspondence.

9. The gas turbine transition section disassembly and assembly tool according to claim 6, characterized in that: The feeding frame includes a second annular frame, a third annular frame and a plurality of connecting rods, wherein the connecting rods extend along the first direction, and the second annular frame and the third annular frame are connected by the plurality of connecting rods; The second annular frame is connected to the limiting member; The movable frame is movably disposed on at least a portion of the plurality of connecting rods along the first direction; The first moving part includes a first screw and a first driver. The first screw is threadedly connected to the moving frame. The first screw can rotate relative to the second annular frame and the third annular frame. The first driver is arranged on the third annular frame. The first driver is connected to the first screw and can drive the first screw to rotate.

10. A method for installing a transition section of a gas turbine using the gas turbine transition section disassembly and assembly tool according to claim 2, characterized in that: The following steps are involved: S1. Use a fixture to set the transition section; S2. Use a lifting tool to lift the engine transition section disassembly and assembly tool, and connect the connecting frame to the flange on the engine cylinder; S3, rotating the feed frame so as to rotate the transition section in the circumferential direction to the installation position; S4. Use at least one of the first moving part and the second moving part to drive the clamp to move in the first direction so as to move the transition section to the installation position in the first direction, and install the transition section into the combustion engine.

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