Vehicle enclosure assembly, axial flow rotating machine, assembly jig, and assembly method

Abstract

To provide a casing assembly, an axial flow rotary machine, an assembly jig, and an assembly method that improve ease of connection of two casing members arranged side by side in an axial direction.SOLUTION: A casing assembly covers an outer peripheral side of a rotor to be rotated around an axis, and comprises a first casing member, a second casing member, a corrective plate, and a screw member. The second casing member is arranged side by side with the first casing member in an axial direction that is an extending direction of the axis, is connected to the first casing member, and comprises an engagement hole. The corrective plate can be connected to the first casing member or is provided integrally with the first casing member, protrudes to an outer peripheral side of the second casing member from an outer peripheral side of the first casing member, and comprises an insertion hole opposed to the engagement hole. The screw member is passed through the insertion hole, and screwed to the engagement hole.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present disclosure relates to a passenger compartment assembly, an axial flow rotary machine, an assembly jig, and an assembly method.

Background Art

[0002] Patent Document 1 discloses a casing assembly method for connecting a first circumferential split casing forming a part of the circumferential direction of a casing and a second circumferential split casing member forming another part of the circumferential direction.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, when connecting two passenger compartment members arranged in the axial direction, it may be difficult to easily connect the two passenger compartment members due to deformation of one or both of these two passenger compartment members or other factors.

[0005] The present disclosure has been made to solve the above problems, and an object thereof is to provide a passenger compartment assembly, an axial flow rotary machine, an assembly jig, and an assembly method that improve the ease of connecting two passenger compartment members arranged in the axial direction.

Means for Solving the Problems

[0006] To solve the above problems, the passenger compartment assembly of the present disclosure is a passenger compartment assembly that covers the outer peripheral side of a rotor that rotates about an axis, and includes a first passenger compartment member, a second passenger compartment member, a correction plate, and a screwing member. The second passenger compartment member is arranged in the axial direction, which is the extending direction of the axis, alongside the first passenger compartment member, is connected to the first passenger compartment member, and has an engagement hole. The correction plate is connectable to the first passenger compartment memberNoh It is provided and protrudes from the outer circumference side of the first vehicle compartment member to the outer circumference side of the second vehicle compartment member, and has an insertion hole facing the engagement hole. The screw member is passed through the insertion hole and screwed into the engagement hole. The straightening plate is flat. The outer periphery of the first vehicle compartment member has a first flat portion that is aligned with the straightening plate. The outer periphery of the second vehicle compartment member has a second flat portion that is aligned with the straightening plate.

[0007] To solve the above problems, the axial flow rotary machine of this disclosure comprises a casing assembly and a rotor. The rotor rotates about an axis. The casing assembly is a casing assembly that covers the outer circumference of the rotor and comprises a first casing member, a second casing member, a straightening plate, and a screw member. The second casing member is aligned with the first casing member in the axial direction which is the direction in which the axis extends, is connected to the first casing member, and has an engagement hole. The straightening plate is connectable to the first casing member. Noh It is provided and protrudes from the outer circumference side of the first vehicle compartment member to the outer circumference side of the second vehicle compartment member, and has an insertion hole facing the engagement hole. The screw member is passed through the insertion hole and screwed into the engagement hole. The straightening plate is flat. The outer periphery of the first vehicle compartment member has a first flat portion that is aligned with the straightening plate. The outer periphery of the second vehicle compartment member has a second flat portion that is aligned with the straightening plate.

[0008] To solve the above problems, the assembly jig of this disclosure is an assembly jig used for assembling a vehicle housing assembly. The vehicle housing assembly is a vehicle housing assembly that covers the outer circumference of a rotor that rotates about an axis, and comprises a first vehicle housing member and a second vehicle housing member that is aligned with the first vehicle housing member in the axial direction which is the direction in which the axis extends, is connected to the first vehicle housing member, and has an engagement hole. The assembly jig is connectable to the first vehicle housing member and, when connected to the first vehicle housing member, protrudes from the outer circumference of the first vehicle housing member to the outer circumference of the second vehicle housing member and has a through hole facing the engagement hole, and has a screw member that is passed through the through hole and can be screwed into the engagement hole. The straightening plate is flat. The outer periphery of the first vehicle compartment member has a first flat portion that is aligned with the straightening plate. The outer periphery of the second vehicle compartment member has a second flat portion that is aligned with the straightening plate.

[0009] To solve the above problems, the present disclosure provides an assembly method for a cab assembly having a first cab member and a second cab member, which covers the outer circumference of a rotor that rotates about an axis, comprising: arranging the first cab member; connecting a straightening plate to the first cab member; the straightening plate protruding from the outer circumference of the first cab member to the outer circumference of the second cab member when the second cab member is positioned in the axial direction which is the extension direction of the axis, and having an insertion hole facing an engagement hole of the second cab member; moving the second cab member to a position in the axial direction which is aligned with the first cab member; and rotating a screw member that is passed through the insertion hole and screwed into the engagement hole, thereby moving the second cab member toward the correct position relative to the first cab member. The straightening plate is flat. The outer periphery of the first vehicle compartment member has a first flat portion that is aligned with the straightening plate. The outer periphery of the second vehicle compartment member has a second flat portion that is aligned with the straightening plate. [Effects of the Invention]

[0010] The vehicle cabin assembly, axial flow rotating machine, assembly jig, and assembly method of this disclosure make it possible to improve the ease of connecting two vehicle cabin members aligned in the axial direction. [Brief explanation of the drawing]

[0011] [Figure 1] This is a schematic cross-sectional view showing the entire gas turbine according to an embodiment of the present disclosure. [Figure 2] This is a side view showing a part of the gas turbine casing according to an embodiment of the present disclosure. [Figure 3] This is a perspective view showing an example of an inlay structure according to the embodiments of this disclosure. [Figure 4] This is a front view showing a structure related to the first vehicle compartment according to an embodiment of the present disclosure. [Figure 5] This is a cross-sectional view along the F5-F5 line of the first and second passenger compartments shown in Figure 4. [Figure 6] This is a front view showing an enlarged view of the area enclosed by line F6 in Figure 4. [Figure 7] This is a cross-sectional view of the structure shown in Figure 6, along the line F7-F7. [Figure 8]It is a bottom view showing a correction plate unit according to an embodiment of the present disclosure. [Figure 9] It is a diagram for explaining a method of assembling a gas turbine compartment according to an embodiment of the present disclosure. [Figure 10] It is a flowchart showing the procedure of an assembly method according to an embodiment of the present disclosure. [Figure 11] It is a diagram for explaining an assembly method according to a first modification of an embodiment of the present disclosure. [Figure 12] It is a cross-sectional view showing an assembly jig according to a second modification of an embodiment of the present disclosure.

Embodiment for Carrying out the Invention

[0012] Hereinafter, a passenger compartment assembly, an axial flow rotary machine, an assembly jig, and an assembly method according to an embodiment of the present disclosure will be described with reference to the drawings. In the following description, components having the same or similar functions are denoted by the same reference numerals. And duplicate descriptions of those components may be omitted.

[0013] In the following description, the extending direction of the axis Ar is defined as the axial direction Da, the circumferential direction centered on the axis Ar is defined as the circumferential direction Dc, and the direction perpendicular to the axis Ar is defined as the radial direction Dr. In the axial direction Da, based on the turbine 40 described later, the compressor 20 side is defined as the upstream side Dau of the axis, and the opposite side is defined as the downstream side Dad of the axis. Also, the side approaching the axis Ar in the radial direction Dr is defined as the inner side Dri of the radial direction, and the opposite side is defined as the outer side Dro of the radial direction.

[0014] <Embodiment> (Configuration of Gas Turbine) FIG. 1 is a cross-sectional view schematically showing the whole gas turbine 1 of the embodiment. The gas turbine 1 is an example of an "axial flow rotary machine". The gas turbine 1 includes an intake section 10 that takes in air A from the outside, a compressor 20 that compresses the air A taken in from the intake section 10, a combustor 30 that burns fuel F in the compressed air A by the compressor 20 to generate combustion gas G, a turbine 40 driven by the combustion gas G, and an exhaust section 50 that guides the combustion gas G that has passed through the turbine 40 to the outside.

[0015] The intake section 10 includes a rotating shaft 11 extending in the axial direction Da about the axis Ar, and an intake casing 12 covering the outer peripheral side of the rotating shaft 11. One end of the rotating shaft 11 is connected to the rotor shaft 25 of the compressor rotor 21 described later. The other end of the rotating shaft 11 is connected to the generator GEN.

[0016] The compressor 20 includes a compressor rotor 21 rotating about the axis Ar, a compressor casing 22 covering the outer peripheral side of the compressor rotor 21, and a plurality of stationary blade stages 23. The compressor rotor 21 includes a rotor shaft 25 extending in the axial direction Da about the axis Ar, and a plurality of moving blade stages 26 attached to the rotor shaft 25. The plurality of moving blade stages 26 are arranged in the axial direction Da. Each moving blade stage 26 includes a plurality of moving blades 26a arranged in the circumferential direction Dc. A stationary blade stage 23 is arranged on the downstream side Dad of the axis of each of the plurality of moving blade stages 26. Each stationary blade stage 23 is provided inside the compressor casing 22. Each stationary blade stage 23 includes a plurality of stationary blades 23a arranged in the circumferential direction Dc.

[0017] The turbine 40 includes a turbine rotor 41 rotating about the axis Ar, a turbine casing 42 covering the outer peripheral side of the turbine rotor 41, and a plurality of stationary blade stages 43. The turbine rotor 41 includes a rotor shaft 45 extending in the axial direction Da about the axis Ar, and a plurality of moving blade stages 46 attached to the rotor shaft 45. The plurality of moving blade stages 46 are arranged in the axial direction Da. Each moving blade stage 46 includes a plurality of moving blades 46a arranged in the circumferential direction Dc. A stationary blade stage 43 is arranged on the upstream side Dau of the axis of each of the plurality of moving blade stages 46. Each stationary blade stage 43 is provided inside the turbine casing 42. Each stationary blade stage 43 includes a plurality of stationary blades 43a arranged in the circumferential direction Dc.

[0018] The exhaust section 50 includes a rotating shaft 51 extending in the axial direction Da about the axis Ar, and an exhaust casing 52 covering the outer peripheral side of the rotating shaft 51. The rotating shaft 51 is connected to the rotor shaft 45 of the turbine rotor 41.

[0019] As shown in Figure 1, the rotating shaft 11, compressor rotor 21, turbine rotor 41, and rotating shaft 51 are located on the same axis Ar and are connected to each other. This forms a gas turbine rotor 5 including the rotating shaft 11, compressor rotor 21, turbine rotor 41, and rotating shaft 51.

[0020] Furthermore, the intake casing 12, compressor casing 22, turbine casing 42, and exhaust casing 52 are arranged in the axial direction Da and connected to one another. This forms a gas turbine casing (axial flow rotating machine casing) 6, which includes the intake casing 12, compressor casing 22, turbine casing 42, and exhaust casing 52. The gas turbine casing 6 is an example of a "casing assembly". Each of the intake casing 12, compressor casing 22, turbine casing 42, and exhaust casing 52 is an example of a "casing". Hereinafter, the intake casing 12, compressor casing 22, turbine casing 42, and exhaust casing 52 will simply be referred to as "casing 61" when there is no need to distinguish them from each other.

[0021] (Gas turbine operation) Next, the operation of gas turbine 1 will be explained. Compressor 20 compresses air A to produce compressed air. The compressed air produced by compressor 20 flows into combustor 30. Fuel F is supplied to combustor 30. Inside combustor 30, fuel F burns in the compressed air to produce high-temperature, high-pressure combustion gas G. The combustion gas G produced by combustor 30 is sent from combustor 30 to the combustion gas flow path inside turbine 40. As the combustion gas G flows through the combustion gas flow path inside turbine 40 toward the downstream side Da on the axis, it rotates the turbine rotor 41. The rotation of turbine rotor 41 rotates the rotor of generator GEN, which is connected to gas turbine rotor 5. As a result, generator GEN generates electricity.

[0022] (Gas turbine casing configuration) Figure 2 is a side view showing a part of the gas turbine casing 6. As described above, the gas turbine casing 6 is formed by arranging a plurality of casings 61 (for example, an intake casing 12, a compressor casing 22, a turbine casing 42, and an exhaust casing 52) in the axial direction Da and connecting them to one another. In this embodiment, each casing 61 is formed in an annular shape around the axis Ar and is divided into two parts, upper and lower, having a lower member 71 and an upper member 72. Each of the lower member 71 and the upper member 72 is semi-annular. Each casing 61 is formed in an annular shape by connecting the lower member 71 and the upper member 72.

[0023] In this embodiment, the lower members 71 of the intake casing 12, the compressor casing 22, the turbine casing 42, and the exhaust casing 52 are aligned in the axial direction Da and connected to each other. This forms the lower half 6a of the gas turbine casing 6. After the lower half 6a of the gas turbine casing 6 is formed, the turbine rotor 41 is positioned inside the lower half 6a of the gas turbine casing 6. Subsequently, the upper members 72 are attached to the lower members 71 of each casing 61 to form the gas turbine casing 6.

[0024] Here, a spigot structure 75 is provided at the connection portion C1 between the lower member 71 of the intake chamber 12 and the lower member 71 of the compressor chamber 22. Similarly, a spigot structure 75 is provided at the connection portion C2 between the lower member 71 of the compressor chamber 22 and the lower member 71 of the turbine chamber 42, and at the connection portion C3 between the lower member 71 of the turbine chamber 42 and the lower member 71 of the exhaust chamber 52. The spigot structure 75 is a stepped structure for aligning two lower members 71 that are aligned (adjacent) in the axial direction Da.

[0025] Figure 3 is a perspective view showing an example of a spigot structure 75. The spigot structure 75 includes a recess 75a provided on one of two lower members 71 aligned in the axial direction Da, and a protrusion 75b provided on the other of the two lower members 71. In the spigot structure 75, the two lower members 71 aligned in the axial direction Da are aligned by fitting together the recess 75a and the protrusion 75b. The spigot structure 75 is provided, for example, on at least a portion of the outer circumference of each lower member 71.

[0026] Here, the method for forming the lower half 6a of the gas turbine casing 6 will be described. The connection of the two lower members 71 aligned in the axial direction Da is performed, for example, by first positioning one of the two lower members 71, and then lowering the other lower member 71 from a suspended state toward a position adjacent to the lower member 71 in the axial direction Da, so that the recess 75a and the protrusion 75b of the spigot structure 75 of the two lower members 71 come into contact.

[0027] In the following, when connecting two lower members 71 aligned in the axial direction Da, the lower member 71 that is placed first will be referred to as the "first lower member 71A," and the lower member 71 that is lowered later and connected to the first lower member 71A will be referred to as the "second lower member 71B." The first lower member 71A is an example of a "first casing member." The second lower member 71B is an example of a "second casing member." Furthermore, in the following, a casing 61 including the first lower member 71A will be referred to as the "first casing 61A," and a casing 61 including the second lower member 71B will be referred to as the "second casing 61B." For example, the first casing 61A is one of the intake casing 12, the compressor casing 22, the turbine casing 42, and the exhaust casing 52. The second casing 61B is another of the intake casing 12, compressor casing 22, turbine casing 42, and exhaust casing 52, and is casing 61 that aligns with the first casing 61A in the axial direction Da and is connected to the first casing 61A.

[0028] (Connection structure of the passenger compartment) Figure 4 is a front view showing the structure related to the first passenger compartment 61A. As shown in Figure 4, the first passenger compartment 61A has a passenger compartment body 81 and a connecting flange 82. The structure of the second passenger compartment 61B is the same as the structure of the first passenger compartment 61A which will be described below. Therefore, redundant explanations regarding the second passenger compartment 61B will be omitted. To understand the explanation of the second passenger compartment 61B, simply replace "first passenger compartment 61A" with "second passenger compartment 61B" and "second passenger compartment 61B" with "first passenger compartment 61A" in the explanation of the first passenger compartment 61A below.

[0029] The casing body 81 is formed in an annular shape centered on the axis Ar and extends in the axial direction Da. The casing body 81 forms the main part of the first casing 61A and covers a portion of the turbine rotor 41 from the outer circumference.

[0030] The connecting flange 82 is provided at the end of the passenger compartment body 81 in the axial direction Da (for example, the end adjacent to the second passenger compartment 61B). The connecting flange 82 protrudes radially outward from the passenger compartment body 81 in the direction Dro. The connecting flange 82 is formed in a plate shape along the radial direction Dr. The connecting flange 82 is formed in an annular shape along the outer circumference of the passenger compartment body 81, except for four planar sections 85 which will be described later. The connecting flange 82 is provided with a plurality of through holes 82a (hereinafter referred to as "horizontal through holes 82a" for distinction). The plurality of horizontal through holes 82a are arranged in a line along the outer circumference of the connecting flange 82 in the circumferential direction Dc. Each of the plurality of horizontal through holes 82a penetrates the connecting flange 82 along the axial direction Da.

[0031] Figure 5 is a cross-sectional view of the first casing 61A and the second casing 61B shown in Figure 4 along the line F5-F5. The second casing 61B, like the first casing 61A, has a casing body 81 and a connecting flange 82. The connecting flange 82 of the second casing 61B has a plurality of horizontal insertion holes 82a. The plurality of horizontal insertion holes 82a of the connecting flange 82 of the first casing 61A and the plurality of horizontal insertion holes 82a of the connecting flange 82 of the second casing 61B face each other in the axial direction Da. The connecting flange 82 of the first casing 61A and the connecting flange 82 of the second casing 61B are joined to each other by fasteners 83 (e.g., bolts 83a and nuts 83b) passed through the horizontal insertion holes 82a of the connecting flange 82 of the first casing 61A and the horizontal insertion holes 82a of the connecting flange 82 of the second casing 61B.

[0032] (Structure of the connecting flange) Next, we will return to Figure 4 and describe in detail the structure of the connecting flange 82. In this embodiment, the connecting flange 82 of the first vehicle compartment 61A has four flat sections 85 (lower flat section 85a, upper flat section 85b, first side flat section 85c, and second side flat section 85d) and four arc sections 86 (first arc section 86a, second arc section 86b, third arc section 86c, and fourth arc section 86d).

[0033] The lower flat portion 85a is provided at the lower end of the connecting flange 82. The lower flat portion 85a is a flat portion that follows the horizontal. The lower flat portion 85a defines a part of the outer shape of the connecting flange 82 (the outer shape of the passenger compartment 61). The lower flat portion 85a is provided between the first circular arc portion 86a and the second circular arc portion 86b. If a virtual line Va having the same curvature as the first circular arc portion 86a is defined between the first circular arc portion 86a and the second circular arc portion 86b, the lower flat portion 85a is located radially inward Dri compared to the virtual line Va. In other words, the lower flat portion 85a is formed by cutting out a part of the annular connecting flange 82. Because the lower flat portion 85a is provided, the vertical width of the passenger compartment 61 is reduced by dimension S1a (hereinafter referred to as "reduction dimension S1a"). The reduction dimension S1a is the maximum vertical distance between the lower planar portion 85a and the imaginary line Va. The reduction dimension S1a is larger than, for example, the vertical dimension S2a between the center of the lower planar portion 85a and the passenger compartment body 81 (i.e., the minimum vertical dimension of the connecting flange 82). The lower planar portion 85a of the first passenger compartment 61A is an example of a "first planar portion".

[0034] The upper flat portion 85b is provided at the upper end of the connecting flange 82. The upper flat portion 85b is a flat portion that follows the horizontal. The upper flat portion 85b defines a part of the outer shape of the connecting flange 82 (the outer shape of the passenger compartment 61). The upper flat portion 85b is provided between the third arc portion 86c and the fourth arc portion 86d. If a virtual line Vb having the same curvature as the third arc portion 86c is defined between the third arc portion 86c and the fourth arc portion 86d, the upper flat portion 85b is located radially inward Dri compared to the virtual line Vb. In other words, the upper flat portion 85b is formed by cutting out a part of the annular connecting flange 82. Because the upper flat portion 85b is provided, the vertical width of the passenger compartment 61 is reduced by dimension S1b (hereinafter referred to as "reduction dimension S1b"). The reduction dimension S1b is the maximum vertical distance between the upper planar portion 85b and the imaginary line Vb. The reduction dimension S1b is larger than, for example, the vertical dimension S2b between the center of the upper planar portion 85b and the vehicle compartment body 81 (i.e., the minimum vertical dimension of the connecting flange 82).

[0035] The first side planar portion 85c is provided at the first side end (left end in Figure 4) of the connecting flange 82. The first side planar portion 85c is a planar portion that follows the vertical. The first side planar portion 85c defines a part of the outer shape of the connecting flange 82 (outer shape of the passenger compartment 61). The first side planar portion 85c is provided between the first circular arc portion 86a and the third circular arc portion 86c. If a virtual line Vc having the same curvature as the first circular arc portion 86a is defined between the first circular arc portion 86a and the third circular arc portion 86c, the first side planar portion 85c is located radially inward Dri compared to the virtual line Vc. In other words, the first side planar portion 85c is formed by cutting out a part of the annular connecting flange 82. By providing the first side planar portion 85c, the horizontal width of the passenger compartment 61 is reduced by dimension S1c (hereinafter referred to as "reduction dimension S1c"). The reduction dimension S1c is the maximum horizontal distance between the first side planar portion 85c and the imaginary line Vc. The reduction dimension S1c is larger than, for example, the horizontal dimension S2c between the center of the first side planar portion 85c and the vehicle compartment body 81 (i.e., the minimum horizontal dimension of the connecting flange 82).

[0036] The second side planar portion 85d is provided at the second side end of the connecting flange 82 (the side end located opposite to the first side end, the right end in Figure 4). The second side planar portion 85d defines a part of the outer shape of the connecting flange 82 (the outer shape of the passenger compartment 61). The second side planar portion 85d is provided between the second arc portion 86b and the fourth arc portion 86d. If a virtual line Vd having the same curvature as the second arc portion 86b is defined between the second arc portion 86b and the fourth arc portion 86d, the second side planar portion 85d is located radially inward Dri compared to the virtual line Vd. In other words, the second side planar portion 85d is formed by cutting out a part of the annular connecting flange 82. By providing the second side planar portion 85d, the horizontal width of the passenger compartment 61 is reduced by dimension S1d (hereinafter referred to as "reduction dimension S1d"). The reduction dimension S1d is the maximum horizontal distance between the second side planar portion 85d and the imaginary line Vd. The reduction dimension S1d is larger than, for example, the horizontal dimension S2d between the center of the second side planar portion 85d and the vehicle compartment body 81 (i.e., the minimum horizontal dimension of the connecting flange 82).

[0037] Each of the four arc sections 86 (first arc section 86a, second arc section 86b, third arc section 86c, and fourth arc section 86d) defines a part of the outer shape of the connecting flange 82 (outer shape of the vehicle compartment 61). The first arc section 86a is provided between the lower flat section 85a and the first side flat section 85c, connecting the lower flat section 85a and the first side flat section 85c. The second arc section 86b is provided between the lower flat section 85a and the second side flat section 85d, connecting the lower flat section 85a and the second side flat section 85d. The third arc section 86c is provided between the upper flat section 85b and the first side flat section 85c, connecting the upper flat section 85b and the first side flat section 85c. The fourth arc portion 86d is provided between the upper flat portion 85b and the second side flat portion 85d, connecting the upper flat portion 85b and the second side flat portion 85d. The four arc portions 86 have the same curvature to each other. In this embodiment, the above-mentioned plurality of horizontal insertion holes 82a are provided separately in the four arc portions 86. On the other hand, the horizontal insertion holes 82a are not provided in the region between each flat portion 85 and the vehicle compartment body 81.

[0038] In this embodiment, the lower member 71 of the first passenger compartment 61A includes a lower flat portion 85a, a first arc portion 86a, a second arc portion 86b, the lower half of the first side flat portion 85c, and the lower half of the second side flat portion 85d. The lower member 71 of the first passenger compartment 61A has, for example, a recess 75a (or protrusion 75b) of the above-described spigot structure 75 in the first arc portion 86a and the second arc portion 86b. In Figure 4, for the sake of explanation, hatching is applied to the portion of the lower member 71 of the first passenger compartment 61A where the spigot structure 75 is provided. On the other hand, the upper member 72 of the first passenger compartment 61A includes an upper flat portion 85b, a third arc portion 86c, a fourth arc portion 86d, the upper half of the first side flat portion 85c, and the upper half of the second side flat portion 85d.

[0039] The connecting flange 82 of the second passenger compartment 61B, like the connecting flange 82 of the first passenger compartment 61A, has four flat sections 85 (lower flat section 85a, upper flat section 85b, first side flat section 85c, and second side flat section 85d) and four arc sections 86 (first arc section 86a, second arc section 86b, third arc section 86c, and fourth arc section 86d). The lower flat section 85a of the second passenger compartment 61B is an example of the "second flat section".

[0040] (Orthodontic plate unit) Next, we will describe the orthodontic plate unit 90, which includes the orthodontic plate 91. Figure 6 is a front view showing an enlarged view of the area enclosed by line F6 in Figure 4. In this embodiment, the gas turbine casing 6 is equipped with a straightening plate unit 90. The straightening plate unit 90 is an assembly jig used for assembling the gas turbine casing 6. The term "assembly" in this disclosure is not limited to the assembly of a new gas turbine 1, but also includes assembly (reassembly) performed after disassembly due to maintenance of the gas turbine 1. The straightening plate unit 90 may remain in the finished gas turbine 1 after the gas turbine casing 6 has been assembled, or it may be removed from the finished gas turbine 1. The straightening plate unit 90 is an example of an "assembly jig". From another perspective, the straightening plate unit 90 is also a reinforcing member that reinforces the connection structure between the first casing 61A and the second casing 61B.

[0041] The straightening plate unit 90 includes a straightening plate 91, a plurality of first bolts 92, and a plurality of second bolts 93 (see Figure 7). In this embodiment, the straightening plate 91 is formed separately from the first casing 61A (for example, the first lower member 71A) and is detachably connected to the first casing 61A (for example, the first lower member 71A). The straightening plate 91 may also be provided integrally with the first casing 61A. This embodiment will be described later as a modification. The straightening plate 91 is positioned corresponding to the circumferential center of the semi-annular first lower member 71A (i.e., the lowest part of the first lower member 71A). In this embodiment, the straightening plate 91 is flat and is provided along the lower flat portion 85a of the first casing 61A and the lower flat portion 85a of the second casing 61B.

[0042] Figure 7 is a cross-sectional view along the line F7-F7 of the structure shown in Figure 6. Figure 8 is a bottom view showing the straightening plate unit 90. As shown in Figures 7 and 8, the straightening plate 91 extends from the outer periphery of the connecting flange 82 of the first casing 61A (e.g., below the connecting flange 82) to the outer periphery of the connecting flange 82 of the second casing 61B (e.g., below the connecting flange 82). That is, when the straightening plate 91 is connected to the connecting flange 82 of the first casing 61A, the straightening plate 91 protrudes from the outer periphery of the connecting flange 82 of the first casing 61A (e.g., below the connecting flange 82) to the outer periphery of the connecting flange 82 of the second casing 61B (e.g., below the connecting flange 82). The straightening plate 91 has a first portion 91a that overlaps with the connecting flange 82 of the first casing 61A in the radial direction Dr, and a second portion 91b that overlaps with the connecting flange 82 of the second casing 61B in the radial direction Dr.

[0043] Here, the lower flat portion 85a of the connecting flange 82 of the first casing 61A has a plurality of first engagement holes 101. The first engagement holes 101 open from the lower flat portion 85a toward the first portion 91a of the straightening plate 91. The first engagement holes 101 are screw holes with internal threads. The first portion 91a of the straightening plate 91 has a plurality of first through holes 102 facing the plurality of first engagement holes 101 of the first casing 61A. The plurality of first through holes 102 face the plurality of first engagement holes 101 in a one-to-one ratio.

[0044] The lower flat portion 85a of the connecting flange 82 of the second casing 61B has a plurality of second engagement holes 103. The second engagement holes 103 open from the lower flat portion 85a toward the second portion 91b of the straightening plate 91. The second engagement holes 103 are threaded holes with internal threads. The second portion 91b of the straightening plate 91 has a plurality of second through holes 104 facing the plurality of second engagement holes 103 of the second casing 61B. The plurality of second through holes 104 face the plurality of second engagement holes 103 in a one-to-one ratio.

[0045] Each of the multiple first bolts 92 is passed through a first through hole 102 in the first portion 91a of the straightening plate 91 and screwed into a first engagement hole 101 in the lower flat portion 85a of the connecting flange 82 of the first casing 61A. In this way, the first bolts 92 fix the first portion 91a of the straightening plate 91 to the lower flat portion 85a of the connecting flange 82 of the first casing 61A. The first bolts 92 are an example of the "first screw-in member".

[0046] Each of the multiple second bolts 93 is passed through a second through-hole 104 in the second portion 91b of the straightening plate 91 and screwed into a second engagement hole 103 in the lower flat portion 85a of the connecting flange 82 of the second casing 61B. In this way, the second bolts 93 fix the second portion 91b of the straightening plate 91 to the lower flat portion 85a of the connecting flange 82 of the second casing 61B. The second bolts 93 are an example of a "second screw-in member".

[0047] (Auxiliary orthodontic plate unit) Returning to Figure 4, the auxiliary straightening plate units 110A and 110B will be described. In this embodiment, the gas turbine casing 6 further includes auxiliary straightening plate units 110A and 110B (first auxiliary straightening plate unit 110A and second auxiliary straightening plate unit 110B). The auxiliary straightening plate units 110A and 110B are assembly jigs used in assembling the gas turbine casing 6, and are also reinforcing members that reinforce the joint structure between the first casing 61A and the second casing 61B. In this disclosure, the assembly jig unit U is formed by the straightening plate unit 90 described above and one or more of the auxiliary straightening plate units 110A and 110B.

[0048] The first auxiliary straightening plate unit 110A is provided along the first side planar portion 85c of the first passenger compartment 61A and the first side planar portion 85c of the second passenger compartment 61B. Similar to the straightening plate unit 90, the first auxiliary straightening plate unit 110A has an auxiliary straightening plate 111, a plurality of first bolts 92, and a plurality of second bolts 93. The auxiliary straightening plate 111 is a flat plate oriented vertically. The first side planar portion 85c of the first passenger compartment 61A has a plurality of first engagement holes 101, similar to the lower planar portion 85a of the first passenger compartment 61A. The first side planar portion 85c of the second passenger compartment 61B has a plurality of second engagement holes 103, similar to the lower planar portion 85a of the second passenger compartment 61B. The auxiliary straightening plate 111, like the straightening plate 91, has a first through hole 102 facing the first engagement hole 101 through which the first bolt 92 is passed, and a second through hole 104 facing the second engagement hole 103 through which the second bolt 93 is passed.

[0049] From another perspective, the first auxiliary straightening plate unit 110A is provided across the lower member 71 and the upper member 72 in each of the first and second passenger compartments 61A and 61B. That is, a portion of the auxiliary straightening plate 111 is fixed to the lower member 71 of the first and second passenger compartments 61A and 61B. Another portion of the auxiliary straightening plate 111 is fixed to the upper member 72 of the first and second passenger compartments 61A and 61B.

[0050] Other configurations of the first auxiliary straightening plate unit 110A can be described above by replacing "lower flat portion 85a of the first vehicle compartment 61A" with "first side flat portion 85c of the first vehicle compartment 61A", "lower flat portion 85a of the second vehicle compartment 61B" with "first side flat portion 85c of the second vehicle compartment 61B", and "straightening plate 91" with "auxiliary straightening plate 111". The thickness T2 of the auxiliary straightening plate 111 is thinner than the thickness T1 of the straightening plate 91.

[0051] The second auxiliary straightening plate unit 110B is provided along the second side planar portion 85d of the first passenger compartment 61A and the second side planar portion 85d of the second passenger compartment 61B. The configuration related to the second auxiliary straightening plate unit 110B is the same as the configuration related to the first auxiliary straightening plate unit 110A. The configuration of the second auxiliary straightening plate unit 110B can be described by replacing "first side planar portion 85c of the first passenger compartment 61A" with "second side planar portion 85d of the first passenger compartment 61A" and "first side planar portion 85c of the second passenger compartment 61B" with "second side planar portion 85d of the second passenger compartment 61B".

[0052] (Auxiliary plate unit) In this embodiment, the gas turbine casing 6 further includes an auxiliary plate unit 120. The auxiliary plate unit 120 is a reinforcing member that reinforces the connection structure between the first casing 61A and the second casing 61B. The auxiliary plate unit 120 is provided along the upper flat portion 85b of the first casing 61A and the upper flat portion 85b of the second casing 61B. Similar to the straightening plate unit 90, the auxiliary plate unit 120 includes an auxiliary plate 121, a plurality of first bolts 92, and a plurality of second bolts 93. The upper flat portion 85b of the first casing 61A, similar to the lower flat portion 85a of the first casing 61A, has a plurality of first engagement holes 101. The upper flat portion 85b of the second casing 61B, similar to the lower flat portion 85a of the second casing 61B, has a plurality of second engagement holes 103. The auxiliary plate 121, like the straightening plate 91, has a first through hole 102 facing the first engagement hole 101 through which the first bolt 92 is passed, and a second through hole 104 facing the second engagement hole 103 through which the second bolt 93 is passed.

[0053] Other configurations of the auxiliary plate unit 120 can be described above by replacing "lower flat portion 85a of the first vehicle compartment 61A" with "upper flat portion 85b of the first vehicle compartment 61A", "lower flat portion 85a of the second vehicle compartment 61B" with "upper flat portion 85b of the second vehicle compartment 61B", and "corrective plate 91" with "auxiliary plate 121". The thickness T3 of the auxiliary plate 121 is thinner than the thickness T1 of the corrective plate 91.

[0054] (Assembly method for gas turbine casing) Figure 9 is a diagram illustrating the assembly method of the gas turbine casing 6. Before assembly, the first lower member 71A may be deformed into a non-circular shape, for example, due to the semi-annular shape of the first lower member 71A, or due to thermal stress during operation of the gas turbine 1, or for other reasons. For example, the first lower member 71A may be deformed into a non-circular shape (shown as dashed lines in Figure 9) in which both the left and right sides are curved inward, compared to its normal circular shape (shown as a solid line in Figure 9). Similarly, the second lower member 71B may be deformed into a non-circular shape in place of / in addition to the first lower member 71A. Furthermore, the amount of deformation may differ between the first lower member 71A and the second lower member 71B.

[0055] Therefore, during the assembly of the gas turbine casing 6, when the first lower member 71A is placed first and the second lower member 71B is lowered from a suspended state to a position adjacent to the first lower member 71A, the recess 75a and protrusion 75b of the spigot structure 75 provided on the first lower member 71A and the second lower member 71B may not align. In this case, before the second lower member 71B is lowered to its correct position, for example, at a height H1 in Figure 9, the second lower member 71B interferes with the first lower member 71A. As a result, the second lower member 71B cannot be lowered to its correct position, and a step remains between the first lower member 71A and the second lower member 71B. In other words, the second lower member 71B ends up being positioned slightly above the first lower member 71A.

[0056] However, in this embodiment, if the second lower member 71B cannot be lowered to its proper position due to interference between the first lower member 71A and the second lower member 71B, the second bolt 93 of the straightening plate unit 90 is passed through the second insertion hole 104 of the straightening plate 91 and screwed into the second engagement hole 103 of the connecting flange 82 of the second lower member 71B. As the second bolt 93 rotates, the second lower member 71B is pulled toward the straightening plate 91 as the second bolt 93 rotates, correcting the deformation of the first lower member 71A and / or the second lower member 71B, and pulling the second lower member 71B down to its proper position. As a result, even if the first lower member 71A and / or the second lower member 71B are deformed, the gas turbine casing 6 can be assembled relatively easily by aligning the recess 75a and the protrusion 75b of the spigot structure 75 provided on the first lower member 71A and the second lower member 71B.

[0057] Furthermore, in this embodiment, if the second lower member 71B is misaligned with respect to the first lower member 71A in a horizontal direction perpendicular to the axial direction Da (left-right direction in Figure 9), the misalignment in this horizontal direction can be reduced by using the auxiliary straightening plate units 110A and 110B. Specifically, by passing the second bolt 93 of the first auxiliary straightening plate unit 110A or the second auxiliary straightening plate unit 110B through the second insertion hole 104 of the auxiliary straightening plate 111 and screwing it into the second engagement hole 103 of the second lower member 71B, and rotating the second bolt 93, the deformation of the first lower member 71A and / or the second lower member 71B can be corrected while aligning the first lower member 71A and the second lower member 71B in the horizontal direction.

[0058] (Assembly Instructions) Figure 10 is a flowchart showing the assembly procedure. The following flowchart mainly illustrates the assembly method for connecting the first lower member 71A and the second lower member 71B within the assembly method of the gas turbine casing 6. Other parts of the assembly method of the gas turbine casing 6 can be performed using known methods.

[0059] The assembly method of this embodiment includes a first lower member placement step (S11), a straightening plate attachment step (S12), a second lower member lowering step (S13), a second lower member pulling down step (S14), and a flange connection step (S15).

[0060] In the first lower member placement step (S11), the first lower member 71A is placed in the assembly position. Next, in the straightening plate attachment step (S12), the straightening plate 91 is attached to the first lower member 71A. Specifically, the first through hole 102 of the straightening plate 91 is aligned with the first engagement hole 101 of the first lower member 71A, and the first bolt 92, which is passed through the first through hole 102 of the straightening plate 91, is screwed into the first engagement hole 101 of the first lower member 71A. As a result, the first portion 91a of the straightening plate 91 is attached to the first lower member 71A. Consequently, the straightening plate 91 protrudes from below the first lower member 71A toward a position below the second lower member 71B. The orthodontic plate mounting process (S12) may be performed before the first lower member placement process (S11) and after the second lower member lowering process (S13).

[0061] In the second lower member lowering step (S13), the second lower member 71B is moved to a position adjacent to the first lower member 71A while suspended, and then the second lower member 71B is lowered so that the recess 75a and protrusion 75b of the spigot structure 75 provided on the first lower member 71A and the second lower member 71B are aligned. As a result, the second lower member 71B is aligned with the first lower member 71A in the axial direction Da. However, if the first lower member 71A and / or the second lower member 71B are deformed, the second lower member 71B cannot be lowered to its normal position, a step remains between the first lower member 71A and the second lower member 71B, and the second lower member 71B is positioned slightly above the first lower member 71A.

[0062] In the second lower member lowering step (S14), the second bolt 93, which is passed through the second insertion hole 104 of the straightening plate 91, is screwed into the second engagement hole 103 of the second lower member 71B. By rotating the second bolt 93, the second lower member 71B is pulled toward the straightening plate 91, correcting the deformation of the first lower member 71A and / or the second lower member 71B, and pulling the second lower member 71B down to its correct position. If the second lower member 71B is misaligned with respect to the first lower member 71A in a horizontal direction perpendicular to the axial direction Da (left-right direction in Figure 9), the misalignment can be corrected by using auxiliary straightening plate units 110A and 110B as part of the second lower member lowering step (S14).

[0063] In the flange connection step (S15), a bolt 83a is passed through the horizontal insertion hole 82a of the connecting flange 82 of the first lower member 71A and the horizontal insertion hole 82a of the connecting flange 82 of the second lower member 71B, and a nut 83b is attached to the bolt 83a. This connects the first lower member 71A and the second lower member 71B. Note that the flange connection step (S15) may be performed after the upper members 72 have been attached to each lower member 71.

[0064] By a similar or identical procedure, the lower members 71 of the intake casing 12, the compressor casing 22, the turbine casing 42, and the exhaust casing 52 are connected to each other. This forms the lower half 6a of the gas turbine casing 6. Subsequently, the turbine rotor 41 is housed inside the lower half 6a of the gas turbine casing 6. Then, the upper members 72 of the intake casing 12, the compressor casing 22, the turbine casing 42, and the exhaust casing 52 are attached to the lower half 6a of the gas turbine casing 6, for example, and these members are connected to each other in the axial direction Da. This completes the assembly of the gas turbine casing 6.

[0065] (Effects and Benefits) As a comparative example, let's consider the case where the straightening plate unit 90 is not present. In this comparative example configuration, if the first lower member 71A and / or the second lower member 71B are deformed into a non-circular shape, interference may occur in the spigot structure 75 at the connection between the first lower member 71A and the second lower member 71B, making it impossible to lower the second lower member 71B to its normal position. In such cases, additional work is performed to widen the space between the sides of the first lower member 71A and / or the second lower member 71B. This additional work is not easy and often reduces the efficiency of the assembly work. Such deformation becomes even larger, for example, after the operation of the gas turbine 1, due to thermal deformation.

[0066] On the other hand, in this embodiment, the gas turbine casing 6 is equipped with a straightening plate unit 90. The straightening plate unit 90 has a straightening plate 91 and a second bolt 93. The straightening plate 91 is provided so as to be connectable to the first lower member 71A, protruding from the outer circumference side of the first lower member 71A to the outer circumference side of the second lower member 71B, and has a second through hole 104 facing the second engagement hole 103 of the second lower member 71B. The second bolt 93 is passed through the second through hole 104 of the straightening plate 91 and screwed into the second engagement hole 103 of the second lower member 71B. With this configuration, when the second bolt 93 is rotated, the second lower member 71B is pulled toward the straightening plate 91, and the deformation of the first lower member 71A and / or the second lower member 71B can be corrected while the second lower member 71B is easily pulled down to its correct position. This improves the ease of connecting the first lower member 71A and the second lower member 71B, even when the first lower member 71A and / or the second lower member 71B are deformed.

[0067] (modified version) The following describes some variations. Note that, in each variation, the configuration is the same as in the embodiment described above, except for the details described below.

[0068] (First variation) Figure 11 is a diagram illustrating the assembly method according to the first modified embodiment. In the embodiment described above, each of the first casing 61A and the second casing 61B is divided into two parts vertically, and has a lower member 71 and an upper member 72. Each of the lower member 71 and the upper member 72 is semi-annular. In contrast, in this first modified embodiment, the second casing 61B is not divided into two parts vertically, and has an annular configuration (full ring configuration). The other configurations are the same as in the first embodiment. That is, the content of the first modified embodiment can be described by substituting "the second casing 61B is semi-annular" with "the second casing 61B is annular" in the description of the embodiment above. Specifically, the content of the first modified embodiment can be described by substituting "second lower member 71B" with "second casing 61B" in the description of the embodiment above. The second casing 61B is an example of a "second casing member".

[0069] When the second compartment 61B is annular, the difference in deformation between the first compartment 61A and the second compartment 61B tends to be larger compared to when both the first compartment 61A and the second compartment 61B are semi-annular. However, in this first modified example, by providing the straightening plate unit 90, the deformation of the first compartment 61A and / or the second compartment 61B can be corrected while the second compartment 61B is pulled down to its proper position, similar to the above embodiment. This improves the ease of connecting the first compartment 61A and the second compartment 61B.

[0070] (Second variation) Figure 12 is a cross-sectional view showing a straightening plate unit 90 according to a second modification of the embodiment. In the second modification, the straightening plate 91 is integrally provided with the connecting flange 82 of the first vehicle compartment 61A. In this disclosure, "integrally provided" is not limited to cases where it is integrally provided by casting or machining, but also includes cases where it is formed as a separate component and then fixed together by welding or the like. With this configuration as well, the ease of connection between the first lower member 71A and the second lower member 71B can be improved, similar to the embodiment described above. This second modification may be implemented in combination with the first modification.

[0071] Embodiments and several modifications have been described above. However, embodiments and modifications are not limited to the examples described above. For example, the vehicle compartment 61 does not have to have a flat portion 85 (lower flat portion 85a, upper flat portion 85b, first side flat portion 85c, and second side flat portion 85d). In this case, the straightening plate 91 may be formed in the shape of an arc-shaped plate along the outer circumference of the connecting flange 82.

[0072] <Note> The vehicle cabin assembly, axial flow rotating machine, assembly jig, and assembly method described in the embodiment can be understood, for example, as follows.

[0073] (1) The casing assembly according to the first embodiment (e.g., gas turbine casing 6) is a casing assembly that covers the outer circumference of a rotor (e.g., gas turbine rotor 5) that rotates about an axis Ar, and comprises a first casing member (e.g., a first lower member 71A), a second casing member (e.g., a second lower member 71B or a second casing 61B), a straightening plate 91, and a screw member (e.g., a second bolt 93). The second casing member is aligned with the first casing member in the axial direction Da, which is the extension direction of the axis Ar, and is connected to the first casing member, and has an engagement hole (e.g., a second engagement hole 103). The straightening plate 91 is connectable to or integrally provided with the first casing member, protrudes from the outer circumference side of the first casing member to the outer circumference side of the second casing member, and has an insertion hole (e.g., a second insertion hole 104) facing the engagement hole. The threaded member is passed through the insertion hole and screwed into the engagement hole.

[0074] With this configuration, even if deformation exists in the first and / or second passenger compartment member, the rotation of the screw-in member pulls the second passenger compartment member toward the straightening plate 91, correcting the deformation of the first and / or second passenger compartment member while moving the second passenger compartment member toward its proper position. This improves the ease of connecting the first and second passenger compartment members, even when deformation exists in the first and / or second passenger compartment member.

[0075] (2) The passenger compartment assembly according to the second embodiment is the passenger compartment assembly of (1), wherein the connection portion between the first passenger compartment member and the second passenger compartment member has an interlocking structure 75.

[0076] With this configuration, if deformation exists in the first and / or second passenger compartment member, interference may occur in the spigot structure 75, making it difficult to connect the first and second passenger compartment members. However, by providing the straightening plate 91, even if interference occurs in the spigot structure 75, the screw member rotates, pulling the second passenger compartment member toward the straightening plate 91, correcting the deformation of the first and / or second passenger compartment member, and moving the second passenger compartment member toward its proper position. This improves the ease of connecting the first and second passenger compartment members.

[0077] (3) The vehicle compartment assembly according to the third embodiment is the vehicle compartment assembly of (1) or (2), wherein the first vehicle compartment member is semicircular and the second vehicle compartment member is semicircular or annular.

[0078] With this configuration, the first and / or second passenger compartment members may deform into a non-circular shape, or there may be a difference in the amount of deformation between the first and second passenger compartment members, which can make it difficult to connect them. However, by providing the straightening plate 91, the deformation of the first and / or second passenger compartment members can be corrected, and the second passenger compartment member can be moved toward its proper position. This improves the ease of connecting the first and second passenger compartment members.

[0079] (4) The passenger compartment assembly according to the fourth embodiment is the passenger compartment assembly of (3), wherein the straightening plate 91 is arranged in a manner corresponding to the central part of the semicircular annular shape of the first passenger compartment member.

[0080] With this configuration, even if both ends of the first passenger compartment member are deformed inward in the circumferential direction, the straightening plate 91 provided in the circumferential center of the first passenger compartment member can correct the deformation of both ends of the first passenger compartment member in the circumferential direction. This improves the ease of connecting the first passenger compartment member and the second passenger compartment member.

[0081] (5) The passenger compartment assembly according to the fifth embodiment is any one of the passenger compartment assemblies from (1) to (4), wherein the straightening plate 91 is flat, the outer periphery of the first passenger compartment member has a first flat portion (for example, the lower flat portion 85a of the first lower member 71A) along the straightening plate 91, and the outer periphery of the second passenger compartment member has a second flat portion (for example, the lower flat portion 85a of the second lower member 71B) along the straightening plate 91.

[0082] With this configuration, deformation of the first and / or second vehicle compartment members can be corrected using the flat straightening plate 91. The flat straightening plate 91 facilitates the machining of the first insertion hole 102 and the second insertion hole 104.

[0083] (6) The axial flow rotating machine according to the sixth embodiment comprises one of the casing assemblies from (1) to (5) and a rotor (for example, a gas turbine rotor 5).

[0084] With this configuration, for the same reasons as with the vehicle compartment assembly in (1), the ease of connecting the first vehicle compartment member and the second vehicle compartment member can be improved.

[0085] (7) The assembly jig according to the seventh embodiment is an assembly jig used for assembling a vehicle housing assembly. The vehicle housing assembly is a vehicle housing assembly that covers the outer circumference of a rotor that rotates about an axis Ar, and comprises a first vehicle housing member and a second vehicle housing member that is aligned with the first vehicle housing member in the axial direction which is the extension direction of the axis Ar, is connected to the first vehicle housing member, and has an engagement hole. The assembly jig comprises a straightening plate 91 that can be connected to the first vehicle housing member and, when connected to the first vehicle housing member, protrudes from the outer circumference of the first vehicle housing member to the outer circumference of the second vehicle housing member and has an insertion hole facing the engagement hole, and a screw member that is passed through the insertion hole and can be screwed into the engagement hole.

[0086] With this configuration, for the same reasons as with the vehicle compartment assembly in (1), the ease of connecting the first vehicle compartment member and the second vehicle compartment member can be improved.

[0087] (8) The assembly method according to the eighth aspect is an assembly method for a cab assembly having a first cab member and a second cab member, which covers the outer circumference of a rotor that rotates about an axis Ar, and includes arranging the first cab member, the first cab member being connectable to or integrally provided with a straightening plate 91, the straightening plate 91 protruding from the outer circumference of the first cab member to the outer circumference of the second cab member when the second cab member is positioned in a position aligned with the first cab member in the axial direction Da which is the extension direction of the axis Ar, and having an insertion hole facing the engagement hole of the second cab member, and moving the second cab member to a position aligned with the first cab member in the axial direction Da, and rotating a screw member that is passed through the insertion hole and screwed into the engagement hole, thereby moving the second cab member toward the correct position relative to the first cab member.

[0088] With this configuration, for the same reasons as with the vehicle compartment assembly in (1), the ease of connecting the first vehicle compartment member and the second vehicle compartment member can be improved. [Explanation of symbols]

[0089] 1…Gas turbine (axial flow rotating machine) 10... Intake section 12… Intake compartment (compartment) 20... Compressor 22...Compressor compartment (compressor compartment) 40... Turbine 42... Turbine casing (casing) 50... Exhaust section 52... Exhaust chamber (cabin) 61...Vehicle compartment 71...Lower member 72…Upper member 81... Main body of the vehicle 82...Connecting flange 90…Orthodontic plate unit 91... Orthodontic plate 92...1st bolt 93...Second bolt (threaded component) 101...First engagement hole 102...First insertion hole 103...Second engagement hole 104...Second insertion hole

Claims

1. A vehicle housing assembly that covers the outer circumference of a rotor that rotates around an axis, First passenger compartment member, A second vehicle compartment member is aligned with the first vehicle compartment member in the axial direction which is the extension direction of the aforementioned axis, is connected to the first vehicle compartment member, and has an engagement hole, A straightening plate is provided so as to be connectable to the first vehicle compartment member, protruding from the outer periphery side of the first vehicle compartment member to the outer periphery side of the second vehicle compartment member, and having an insertion hole facing the engagement hole, A screw member that is passed through the insertion hole and screwed into the engagement hole, Equipped with, The orthodontic plate is flat, The outer periphery of the first vehicle compartment member has a first flat portion that is aligned with the straightening plate, The outer periphery of the second vehicle compartment member has a second flat portion that is aligned with the straightening plate. Cabin assembly.

2. A vehicle housing assembly that covers the outer circumference of a rotor that rotates about an axis, First passenger compartment member, A second vehicle compartment member is aligned with the first vehicle compartment member in the axial direction which is the extension direction of the aforementioned axis, is connected to the first vehicle compartment member, and has an engagement hole, A straightening plate is provided integrally with the first vehicle compartment member, protruding from the outer periphery side of the first vehicle compartment member to the outer periphery side of the second vehicle compartment member, and having an insertion hole facing the engagement hole, A screw member that is passed through the insertion hole and screwed into the engagement hole, Equipped with, The orthodontic plate is flat, The outer periphery of the second vehicle compartment member has a flat portion that is aligned with the straightening plate. Cabin assembly.

3. The connection portion between the first vehicle compartment member and the second vehicle compartment member has an interlocking structure. The vehicle interior assembly according to claim 1 or claim 2.

4. The first passenger compartment member is semi-annular, The second vehicle compartment member is semicircular or annular. The vehicle interior assembly according to claim 1 or claim 2.

5. The straightening plate is positioned corresponding to the circumferential center portion of the semi-annular shape of the first vehicle compartment member. The vehicle compartment assembly according to claim 4.

6. A vehicle compartment assembly according to any one of claims 1 to 5, The rotor and, An axial flow rotating machine equipped with [a specific feature].

7. An assembly jig used for assembling a vehicle compartment assembly, The aforementioned enclosure assembly is an enclosure assembly that covers the outer circumference of a rotor that rotates about an axis, and comprises a first enclosure member and a second enclosure member that is aligned with the first enclosure member in the axial direction which is the direction in which the axis extends, is connected to the first enclosure member, and has an engagement hole. The aforementioned assembly jig is A straightening plate that is connectable to the first vehicle compartment member, and when connected to the first vehicle compartment member, protrudes from the outer circumference side of the first vehicle compartment member to the outer circumference side of the second vehicle compartment member, and has an insertion hole facing the engagement hole, A screw member that is passed through the insertion hole and screwed into the engagement hole, Equipped with, The orthodontic plate is flat, The outer periphery of the first vehicle compartment member has a first flat portion that is aligned with the straightening plate, The outer periphery of the second vehicle compartment member has a second flat portion that is aligned with the straightening plate. Assembly jig.

8. A method for assembling a vehicle enclosure assembly having a first vehicle enclosure member and a second vehicle enclosure member, which covers the outer circumference of a rotor that rotates about an axis, When the first vehicle compartment member is positioned and the second vehicle compartment member is positioned in the axial direction which is the direction of extension of the axis, the straightening plate protrudes from the outer circumference of the first vehicle compartment member to the outer circumference of the second vehicle compartment member and has an insertion hole facing the engagement hole of the second vehicle compartment member. The second vehicle compartment member is moved to a position aligned with the first vehicle compartment member in the aforementioned axial direction. By rotating the screw member that is passed through the insertion hole and screwed into the engagement hole, the second vehicle compartment member is moved toward the correct position relative to the first vehicle compartment member. The orthodontic plate is flat, The outer periphery of the first vehicle compartment member has a first flat portion that is aligned with the straightening plate, The outer periphery of the second vehicle compartment member has a second flat portion that is aligned with the straightening plate. Assembly method.

9. A method for assembling a casing assembly having a first casing member and a second casing member, which covers the outer circumference of a rotor that rotates about an axis, The first vehicle compartment member is positioned such that, when the second vehicle compartment member is positioned in the axial direction which is the direction of extension of the axis, the straightening plate protrudes from the outer circumference of the first vehicle compartment member to the outer circumference of the second vehicle compartment member and has an insertion hole facing the engagement hole of the second vehicle compartment member. The second vehicle compartment member is moved to a position aligned with the first vehicle compartment member in the aforementioned axial direction. By rotating the screw member that is passed through the insertion hole and screwed into the engagement hole, the second vehicle compartment member is moved toward the correct position relative to the first vehicle compartment member. The orthodontic plate is flat, The outer periphery of the second vehicle compartment member has a flat portion that is aligned with the straightening plate. Assembly method.

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