Method for adjusting deformation of the lower half of the passenger compartment

Abstract

To easily connect an upper-half inner cabin to a lower-half inner cabin even during the adjustment of a deformation of the lower-half inner cabin.SOLUTION: A lower-half inner cabin has a lower-half inner cabin main body which is formed into a semi-circular shape, and an inner cabin accessory part provided at the lower-half inner cabin main body. The inner cabin accessory part has a salient part which is salient to the outside of the lower-half inner cabin main body in a radial direction, and also salient to an upper side rather than a lower contact face of the lower-half inner cabin main body. A deformation adjustment method of the lower-half inner cabin of a rotating machine performs: a preparation step for preparing a deformation adjustment device having an inner cabin side member which can be relatively and immovably attached to the salient part in the radial direction; a device arrangement step for attaching the inner cabin side member to the salient part, and disposing the deformation adjustment device around the salient part; and a deformation adjustment step for pushing the inner cabin side member which is attached to the salient part to the inside of the radial direction.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present invention relates to a method for adjusting deformation of a lower half inner casing in a rotating machine.

Background Art

[0002] Rotating machines such as steam turbines and gas turbines generally include a rotor rotatable about an axis extending in the horizontal direction, an inner casing covering the outer periphery of the rotor, and an outer casing covering the outer periphery of the inner casing. The inner casing has a lower half inner casing that forms a semi-arc shape about the axis and covers the portion below the axis in the rotor, and an upper half inner casing that forms a semi-arc shape about the axis and covers the portion above the axis in the rotor. The outer casing has a lower half outer casing that forms a semi-arc shape about the axis and covers the outer peripheral side of the lower half inner casing, and an upper half outer casing that forms a semi-arc shape about the axis and covers the outer peripheral side of the upper half inner casing.

[0003] In a rotating machine as described above, the inner casing may undergo secular deformation due to its own weight, heat influence, etc. When the inner casing is deformed, it may become difficult to disassemble the rotating machine, etc. Therefore, as described in Patent Document 1 below, a technique for adjusting the deformation of the inner casing using a deformation adjusting device is disclosed.

[0004] The deformation adjustment device comprises an inner casing side member attached to the lower inner casing, which is the lower half-wing ring; an outer casing side member attached to the lower outer casing located on the outer periphery of the lower inner casing; and a rod for adjusting the distance between the inner casing side member and the outer casing side member. The lower inner casing has a lower contact surface that extends horizontally and can contact the upper inner casing, and bolt holes recessed vertically from this lower contact surface. The lower outer casing has a lower contact surface that extends horizontally and can contact the upper outer casing, and bolt holes recessed vertically from this lower contact surface. The inner casing side member is partially inserted through the bolt holes of the lower inner casing and attached to fastening bolts protruding upward from the lower contact surface of the lower inner casing. The outer casing side member is partially inserted through the bolt holes of the lower outer casing and attached to fastening bolts protruding upward from the lower contact surface of the lower outer casing. A male thread is formed at the tip of the rod. Furthermore, the outer cabin side member has a female thread into which the male thread of the rod can be screwed. In this technology, by adjusting the amount the rod is screwed into the outer cabin side member, the distance between the inner cabin side member and the outer cabin side member is adjusted, and the deformation of the lower half of the inner cabin to which the inner cabin side member is attached is adjusted. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] International Publication No. 2020 / 036120 [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] In the technology described in Patent Document 1, the inner cabin side member of the deformation adjustment device is attached to a fastening bolt protruding from the lower contact surface of the lower inner cabin. Therefore, when the deformation of the lower inner cabin is being adjusted using the deformation adjustment device, the inner cabin side member of the deformation adjustment device is located on the lower contact surface of the lower inner cabin. Consequently, the technology described in Patent Document 1 has the problem that it is extremely cumbersome to connect the upper inner cabin to the lower inner cabin while the deformation of the lower inner cabin is being adjusted.

[0007] Therefore, the present disclosure aims to provide a method for adjusting the deformation of a lower inner compartment that allows for easy connection of the upper inner compartment to the lower inner compartment even while the deformation of the lower inner compartment is being adjusted. [Means for solving the problem]

[0008] A method for adjusting the deformation of the lower inner casing according to one embodiment of the invention for achieving the above objective is applicable to the following rotating machinery. This rotating machine comprises a rotor rotatable about a horizontally extending axis, an inner casing covering the outer circumference of the rotor, and an outer casing covering the outer circumference of the inner casing. The inner casing has a lower half inner casing that is semi-circular in shape about the axis and covers the portion of the rotor below the axis, and an upper half inner casing that is semi-circular in shape about the axis and covers the portion of the rotor above the axis. The outer casing has a lower half outer casing that is semi-circular in shape about the axis and covers the outer circumference of the lower half inner casing, and an upper half outer casing that is semi-circular in shape about the axis and covers the outer circumference of the upper half inner casing. The lower inner casing has a semi-circular shape with respect to the axis and comprises a lower inner casing body that covers the portion of the rotor below the axis, and an inner casing attachment provided on the lower inner casing body. The lower inner casing body has lower contact surfaces that extend horizontally at both ends in the circumferential direction relative to the axis and can contact the upper inner casing. The inner casing attachment has a projection that protrudes radially outward from the lower inner casing body relative to the axis and above the lower contact surface. The above method for adjusting the deformation of the lower inner casing of a rotating machine includes a preparation step of preparing a deformation adjustment device having an inner casing side member that can be attached to the protruding portion so as not to move relative to it in the radial direction with respect to the axis, and attaching the inner casing side member to the protruding portion and moving the deformation adjustment device having the inner casing side member around the protruding portion. and in a position that avoids the lower contact surface. The process involves arranging the device and performing a deformation adjustment process which involves pushing the inner cabin side member attached to the protruding portion radially inward with respect to the axis, or pulling the inner cabin side member radially outward.

[0009] In this embodiment, the deformation of the lower inner casing can be adjusted, thus avoiding problems such as contact between the lower inner casing and the rotor during disassembly or assembly of the rotating machinery. Furthermore, in this embodiment, when the deformation of the lower inner casing is being adjusted using the deformation adjustment device, the deformation adjustment device is not present on the lower contact surface of the lower inner casing, so the upper inner casing can be easily connected to the lower inner casing while the deformation is being adjusted. [Effects of the Invention]

[0010] According to one aspect of this disclosure, the upper half of the inner bay can be easily connected to the lower half of the inner bay even when the lower half of the inner bay is deformed or its position is being adjusted. [Brief explanation of the drawing]

[0011] [Figure 1] This is a schematic cross-sectional view of a rotating machine in one embodiment relating to this disclosure. [Figure 2] This is a cross-sectional view of a main part of a rotating machine in one embodiment of the present disclosure. [Figure 3] This is an explanatory diagram showing a first modified form of the lower interior compartment in one embodiment relating to this disclosure. [Figure 4] This is an explanatory diagram showing a second modified form of the lower interior compartment in one embodiment relating to this disclosure. [Figure 5] This is a flowchart showing a method for adjusting the deformation of the lower half of the interior vehicle compartment in the first embodiment of the present disclosure. [Figure 6] This is a plan view showing the arrangement of the deformation adjustment device when the lateral dimension of the lower inner compartment is elongated due to deformation, according to the first embodiment of the present disclosure. [Figure 7] This is a cross-sectional view taken along line VII-VII in Figure 6. [Figure 8] This is a cross-sectional view taken along line VIII-VIII in Figure 6. [Figure 9] This is a cross-sectional view showing the arrangement of the deformation adjustment device when the vertical dimension of the lower inner compartment is elongated due to deformation, according to the first embodiment of the present disclosure. [Figure 10]It is a plan view showing the arrangement of the deformation adjustment device when, in the second embodiment according to the present disclosure, the left-right dimension of the lower half inner passenger compartment becomes longer due to deformation. [Figure 11] It is a cross-sectional view taken along line XI-XI in FIG. 10. [Figure 12] It is a cross-sectional view taken along line XII-XII in FIG. 10. [Figure 13] It is a plan view showing the arrangement of the deformation adjustment device when, in the second embodiment according to the present disclosure, the up-down dimension of the lower half inner passenger compartment becomes longer due to deformation. [Figure 14] It is a cross-sectional view taken along line XIV-XIV in FIG. 13.

Mode for Carrying Out the Invention

[0012] [[ID=1,9]] Hereinafter, various embodiments of the present invention and their modified examples will be described in detail with reference to the drawings. Before describing the embodiment of the "method for deforming and adjusting the lower half inner passenger compartment", the embodiment of the rotating machine to which this method is applied will be described.

[0013] 「Embodiment of Rotating Machine」 The embodiment of the rotating machine will be described with reference to FIGS. 1 to 4.

[0014] The rotating machine in the present embodiment is, for example, a gas turbine. As shown in FIG. 1, this rotating machine includes a rotor 10 that can rotate about an axis Ar extending in the horizontal direction, a plurality of stator blade rows 15, an inner passenger compartment 20 that covers the outer periphery of the rotor 10, and an outer passenger compartment 30 that covers the outer periphery of the inner passenger compartment 20. Here, the direction in which the axis Ar extends is defined as the axial direction Da, the direction perpendicular to the axis Ar is defined as the radial direction Dr, and the circumferential direction with respect to the axis Ar is simply defined as the circumferential direction Dc. Also, in the radial direction Dr, the side closer to the axis Ar is defined as the radially inner side Dri, and the opposite side is defined as the radially outer side Dro. Further, in the radial direction Dr and with the vertical direction being the up-down direction Dv. [[ID=3,2]]

[0015] The rotor 10 has a rotor shaft 11 extending in the axial direction Da with respect to the axis Ar, and a plurality of rotor blade rows 12 attached to the rotor shaft 11. The plurality of rotor blade rows 12 are arranged in the axial direction Da. Each of the plurality of rotor blade rows 12 has a plurality of rotor blades 13 arranged in the circumferential direction Dc.

[0016] Multiple stator vane rows 15 are mounted on the inner circumference of the inner casing 20, aligned in the axial direction Da. For this reason, the inner casing 20 is sometimes called a wing ring. Each of the multiple stator vane rows 15 has multiple stator vanes 16 aligned in the circumferential direction Dc.

[0017] The inner casing 20 has an upper inner casing 22u, a lower inner casing 22d, and a plurality of inner casing fastening bolts 21 that fasten the upper inner casing 22u and the lower inner casing 22d together. The upper inner casing 22u is semi-circular in shape with the axis Ar as its center and covers the portion Dvu above the axis Ar in the rotor 10. The lower inner casing 22d is semi-circular in shape with the axis Ar as its center and covers the portion Dvd below the axis Ar in the rotor 10.

[0018] The outer casing 30 has an upper half outer casing 32u, a lower half outer casing 32d, and a plurality of outer casing fastening bolts 31 that fasten the upper half outer casing 32u and the lower half outer casing 32d. The upper half outer casing 32u is semi-circular in shape with axis Ar as the center and covers the outer periphery of the upper half inner casing 22u. The lower half outer casing 32d is semi-circular in shape with axis Ar as the center and covers the outer periphery of the lower half inner casing 22d.

[0019] As shown in Figures 1 and 2, the lower inner casing 22d has a lower inner casing body 23 and a plurality of inner casing attachments 26. The lower inner casing body 23 is semi-circular in shape with axis Ar as the center and covers the portion Dvd below axis Ar in the rotor 10. The plurality of inner casing attachments 26 are provided on the lower inner casing body 23. The lower inner casing body 23 has a lower contact surface 25 and a plurality of bolt holes 24. The lower contact surface 25 is a surface that extends horizontally at both ends of the circumferential direction Dc in the lower inner casing body 23, faces upward Dvu, and contacts the upper inner casing 22u. The plurality of bolt holes 24 are recessed from the lower contact surface 25 and penetrate the lower inner casing body 23 in the vertical direction Dv. The plurality of bolt holes 24 are aligned in the axial direction Da. Multiple bolt holes 24 are through which inner casing fastening bolts 21 are inserted. These inner casing fastening bolts 21 fasten the lower inner casing 22d and the upper inner casing 22u together. Each of the multiple inner casing attachments 26 has a projection 27 that protrudes radially outward from the lower inner casing body 23 in Dro and upward from the lower contact surface 25 in Dvu. The multiple inner casing attachments 26 are arranged in the axial direction Da. Each of the multiple inner casing attachments 26 is fixed to the lower inner casing body 23 with screws 28. These inner casing attachments 26 are sometimes called keys.

[0020] The lower half-external passenger compartment 32d has a lower half-external passenger compartment body 33 and a plurality of external passenger compartment attachments 36. The lower half-external passenger compartment body 33 is semi-circular in shape with axis Ar as the center and covers the outer periphery of the lower half-inner passenger compartment 22d. The plurality of external passenger compartment attachments 36 are provided on the lower half-external passenger compartment body 33. The lower half-external passenger compartment body 33 has a lower contact surface 35 and a plurality of bolt holes 34. The lower contact surface 35 is a surface that extends horizontally from both ends of the circumferential direction Dc of the lower half-external passenger compartment body 33, facing upward Dvu and in contact with the upper half-external passenger compartment 32u. The plurality of bolt holes 34 are recessed from the lower contact surface 35 and penetrate the lower half-external passenger compartment body 33 in the vertical direction Dv. The plurality of bolt holes 34 are arranged in the axial direction Da. External passenger compartment fastening bolts 31 are inserted through the plurality of bolt holes 34. The lower half-external compartment 32d and the upper half-external compartment 32u are fastened together by these external compartment fastening bolts 31. Multiple external compartment attachments 36 are arranged in the axial direction Da. Each of the multiple external compartment attachments 36 is fixed with screws to the radially inner portion Dri in the lower contact surface 35 of the lower half-external compartment body 33. The external compartment attachments 36 are sometimes called liners.

[0021] The outer compartment attachment 36 is located between the protruding portion 27 of the inner compartment attachment 26 and the lower contact surface 35 of the lower half outer compartment body 33, and is sandwiched between the protruding portion 27 of the inner compartment attachment 26 and the lower half outer compartment body 33. Therefore, by adjusting the thickness of the outer compartment attachment 36 in the vertical direction Dv, the position of the lower half inner compartment 22d in the vertical direction Dv relative to the lower half outer compartment 32d can be adjusted. Thus, the inner compartment attachment 26 and the outer compartment attachment 36 play a role in adjusting the position of the lower half inner compartment 22d in the vertical direction Dv relative to the lower half outer compartment 32d.

[0022] The lower inner casing 22d deforms over time due to its own weight, thermal effects, etc. In this case, for example, as shown in Figure 3, the vertical dimension Dv of the deformed lower inner casing 22d (shown by dashed lines in Figure 3) may increase and the horizontal dimension may decrease, or as shown in Figure 4, the left-right dimension of the deformed lower inner casing 22d (shown by dashed lines in Figure 4) may increase and the vertical dimension Dv may decrease. When the lower inner casing 22d deforms in this way, problems such as contact between the lower inner casing 22d and the rotor 10 may occur during disassembly or assembly of the rotating machine.

[0023] Therefore, methods for adjusting the deformation of the lower inner compartment 22d are being considered.

[0024] "First Embodiment of a Method for Adjusting the Deformation of the Lower Inner Vehicle Compartment" A first embodiment of the method for adjusting the deformation of the lower half of the interior passenger compartment will be described with reference to Figures 5 to 9.

[0025] The method for adjusting the deformation of the lower half of the interior bay in this embodiment will be explained according to the flowchart shown in Figure 5.

[0026] First, the deformation adjustment device 50 is prepared (preparation step S1). As shown in Figures 6 to 8, the deformation adjustment device 50 includes an inner vehicle compartment side member 51, an outer vehicle compartment side member 53, and a distance adjustment mechanism 57.

[0027] The interior passenger compartment side member 51 can be attached to the protruding portion 27 of the interior passenger compartment attachment 26 so as not to move relative to it in the radial direction Dr. Specifically, in this embodiment, the interior passenger compartment side member 51 can be fixed to the protruding portion 27 of the interior passenger compartment attachment 26 with a screw 52 (see Figure 8).

[0028] The outer cabin side member 53 can be attached to the lower half outer cabin 32d so as not to move relative to it in the radial direction Dr. This outer cabin side member 53 has a pin 54 that can be inserted into a bolt hole 34 of the lower half outer cabin 32d.

[0029] The distance adjustment mechanism 57 can adjust the radial distance Dr between the inner cabin side member 51 attached to the protruding portion 27 and the outer cabin side member 53 attached to the lower half outer cabin 32d. The distance adjustment mechanism 57 includes a rod 58 with a male thread formed thereon and a nut 59 with a female thread that can be screwed onto the male thread of the rod 58. The pin 54 has a rod insertion hole 54h through which the rod 58 can be inserted. The inner cabin side member 51 has a rod fixing hole 51h through which the tip of the rod 58 can be fixed.

[0030] Next, the deformation adjustment device 50 is positioned around the protruding portion 27 of the inner cabin attachment 26 (device positioning step S2). In this device positioning step S2, first, a portion of the pin 54 of the outer cabin side member 53 is inserted into one of the bolt holes 34 of the lower half outer cabin 32d that is closest to the protruding portion 27, causing a portion of the pin 54 to protrude from the bolt hole 34. Next, the rod 58 of the deformation adjustment device 50 is inserted through the rod insertion hole 54h of the pin 54, and then the tip of the rod 58 is inserted into the rod fixing hole 51h of the inner cabin side member 51 to fix the rod 58 to the inner cabin side member 51. Next, the inner cabin side member 51 of the deformation adjustment device 50 is fixed to the protruding portion 27 with a screw 52. As a result, the longitudinal direction of the rod 58 is maintained in the radial direction Dr. Then, the nut 59 of the deformation adjustment device 50 is screwed onto the male thread of the rod 58. In addition, the arrangement order of the components constituting the deformation adjustment device 50 in the device arrangement process S2 is not limited to the above order.

[0031] If, as shown in Figure 3, the deformation of the lower inner casing 22d results in an increase in the vertical dimension Dv of the deformed lower inner casing 22d (shown by a dashed line in Figure 3) and a decrease in the horizontal dimension of the lower inner casing 22d, then, as shown in Figures 6 and 7, the nut 59 is screwed onto the male thread of the rod 58 so that it is located radially outward Dro of the pin 54. Alternatively, as shown in Figure 4, if the deformation of the lower inner casing 22d results in an increase in the horizontal dimension of the deformed lower inner casing 22d (shown by a dashed line in Figure 3) and a decrease in the vertical dimension Dv of the lower inner casing 22d, then, as shown in Figure 9, the nut 59 is screwed onto the male thread of the rod 58 so that it is located radially inward Dri of the pin 54. In this case, before inserting the rod 58 through the rod insertion hole 54h of the pin 54, it is necessary to screw the nut 59 onto the male thread of the rod 58.

[0032] Then, the nut 59 of the deformation adjustment device 50 is operated to change the radial Dr distance between the inner cabin side member 51 and the outer cabin side member 53 (deformation adjustment step S3). For example, if in the device placement step S2, as shown in Figures 6 and 7, the nut 59 is screwed onto the male thread of the rod 58 so that it is positioned radially outward Dr of the pin 54, then rotating the nut 59 relative to the rod 58 reduces the radial Dr distance between the inner cabin side member 51 and the outer cabin side member 53. As a result, the inner cabin side member 51 is pulled radially outward Dr. As shown in Figure 3, with the above operation of the nut 59, even if the vertical dimension Dv of the lower inner casing 22d increases and the horizontal dimension of the lower inner casing 22d decreases due to deformation of the lower inner casing 22d, the vertical dimension Dv of the lower inner casing 22d decreases and the horizontal dimension of the lower inner casing 22d increases, resulting in less deformation of the lower inner casing 22d. Also, if, for example, in the device arrangement step S2, the nut 59 is screwed onto the male thread of the rod 58 so that it is positioned radially inward Dri of the pin 54, as shown in Figure 9, the nut 59 is rotated relative to the rod 58, increasing the radial distance Dr between the inner casing side member 51 and the outer casing side member 53. As a result, the inner casing side member 51 is radially inside It is pressed by Dri. With the above operation of the nut 59, as shown in Figure 4, even if the lateral dimension of the lower inner casing 22d becomes longer and the vertical dimension Dv of the lower inner casing 22d becomes shorter due to the deformation of the lower inner casing 22d, the lateral dimension of the lower inner casing 22d becomes shorter and the vertical dimension Dv of the lower inner casing 22d becomes longer, and the amount of deformation of the lower inner casing 22d becomes smaller.

[0033] This completes all steps in the deformation adjustment method for the lower inner compartment 22d.

[0034] As described above, in this embodiment, the deformation of the lower inner casing 22d can be adjusted, so problems such as contact between the lower inner casing 22d and the rotor 10 during disassembly or assembly of the rotating machine can be avoided. Furthermore, in this embodiment, when the deformation of the lower inner casing 22d is being adjusted using the deformation adjustment device 50, the deformation adjustment device 50 is not present on the lower contact surface 25 of the lower inner casing 22d, so the upper inner casing 22u can be easily connected to the lower inner casing 22d during deformation adjustment.

[0035] Furthermore, in this embodiment, by rotating the nut 59, which has a female thread formed on it, relative to the rod 58, the distance between the inner cabin side member 51 and the outer cabin side member 53 can be shortened or widened. Therefore, in this embodiment, the deformation of the lower inner cabin 22d can be easily fine-tuned.

[0036] In this embodiment, the distance adjustment mechanism 57 includes a rod 58 and a nut 59. However, the nut 59 may be omitted. In this case, a pin 54 is used as the nut. Specifically, a female thread is formed on the pin 54 so that it can be screwed onto the male thread of the rod 58. Furthermore, the rod 58 is attached to the protrusion 27 so that it is immovable in the radial direction Dr and the axial direction Da, but rotatable. Then, in the deformation adjustment step S3, the rod 58 is rotated relative to the pin 54 to change the distance between the inner cabin side member 51 and the outer cabin side member 53.

[0037] "Second Embodiment of a Method for Adjusting the Deformation of the Lower Inner Vehicle Compartment" A second embodiment of the method for adjusting the deformation of the lower half of the interior passenger compartment will be described with reference to Figures 10 to 14.

[0038] The deformation adjustment method for the lower half of the interior bay in this embodiment is the same as the deformation adjustment method for the lower half of the interior bay in the first embodiment, and includes a preparation step S1, an equipment placement step S2, and a deformation adjustment step S3.

[0039] In the deformation adjustment method for the lower inner bay compartment 22d in this embodiment, as shown in Figures 10 to 12, the deformation adjustment device 50x prepared in preparation step S1 is different from the deformation adjustment device 50 in the first embodiment.

[0040] In the first embodiment, as shown in Figure 6, the bolt holes 34 of the lower half-external vehicle compartment 32d are located on a virtual line LV that passes through the center of the axial direction Da of the protruding portion 27 and extends in the radial direction Dr. Deformation adjustment device 5 in the first embodiment 0 is This device is suitable in such cases. However, as shown in Figure 10, there are cases where the bolt holes 34 of the lower half-external vehicle compartment 32d do not exist on the imaginary line LV that passes through the center of the axial direction Da of the protruding portion 27 and extends in the radial direction Dr. The deformation adjustment device 50x in this embodiment is suitable in such cases.

[0041] As shown in Figures 10 to 12, the deformation adjustment device 50x in this embodiment, like the deformation adjustment device 50 in the first embodiment, has an inner vehicle compartment side member 51, an outer vehicle compartment side member 53x, and a distance adjustment mechanism 57.

[0042] The interior cabin side member 51 in this embodiment is the same as the interior cabin side member 51 in the first embodiment. Therefore, the interior cabin side member 51 in this embodiment can be attached to the protruding portion 27 of the interior cabin attachment 26 so as not to move relative to it in the radial direction Dr. Specifically, the interior cabin side member 51 in this embodiment can be fixed to the protruding portion 27 of the interior cabin attachment 26 with a screw 52.

[0043] The distance adjustment mechanism 57 in this embodiment is the same as the distance adjustment mechanism 57 in the first embodiment. Therefore, the distance adjustment mechanism 57 in this embodiment can adjust the radial distance Dr between the inner cabin side member 51 attached to the protruding portion 27 and the outer cabin side member 53x attached to the lower half outer cabin 32d. This distance adjustment mechanism 57 also has a rod 58 with a male thread formed thereon and a nut 59 with a female thread that can be screwed onto the male thread of the rod 58. The inner cabin side member 51 has a rod fixing hole 51h that can fix the tip of the rod 58.

[0044] The outer cabin side member 53x in this embodiment differs from the outer cabin side member 53 in the first embodiment. The outer cabin side member 53x in this embodiment can be attached to the lower half outer cabin 32d in a way that prevents relative movement in the radially inward Dri or radially outward Dro direction. This outer cabin side member 53x has a first pin 55a that can be inserted into a first bolt hole 34a of the multiple bolt holes 34 of the lower half outer cabin 32d, a second pin 55b that can be inserted into a second bolt hole 34b of the multiple bolt holes 34 of the lower half outer cabin 32d, and a pin contact member 56 that can contact the first pin 55a and the second pin 55b.

[0045] The first bolt hole 34a is one of several bolt holes 34 in the lower half outer casing 32d, and is located on one side of the axial direction Da with reference to a virtual line LV that passes through the center of the axial direction Da of the protruding portion 27 and extends in the radial direction Dr. The second bolt hole 34b is one of several bolt holes 34 in the lower half outer casing 32d, and is located on the other side of the axial direction Da with reference to the aforementioned virtual line LV. The position of the radial direction Dr of this second bolt hole 34b is different from the position of the radial direction Dr of the first bolt hole 34a.

[0046] As shown in Figures 10 and 12, the pin contact member 56 has a main body 56m that can contact the first pin 55a and the second pin 55b, and a shoe 56s fixed to the main body 56m with screws. The main body 56m has a first contact portion 56a that can contact the first pin 55a, a second contact portion 56b that can contact the second pin 55b, and a connecting portion 56c that connects the first contact portion 56a and the second contact portion 56b. The first contact portion 56a and the second contact portion 56b extend in the same direction. In other words, the first contact portion 56a and the second contact portion 56b are parallel to each other. As mentioned above, since the radial Dr position of the second bolt hole 34b is different from the radial Dr position of the first bolt hole 34a, the radial Dr position of the second pin 55b inserted into the second bolt hole 34b is different from the radial Dr position of the first pin 55a inserted into the first bolt hole 34a. Therefore, the second contact portion 56b, which can contact the second pin 55b, is shifted relative to the first contact portion 56a, which can contact the first pin, by the radial distance Dr between the second bolt hole 34b and the first bolt hole 34a, in a direction perpendicular to the direction in which the second contact portion 56b and the first contact portion 56a extend. Furthermore, the thickness of the portion of the first contact portion 56a that contacts the first pin 55a and the thickness of the portion of the second contact portion 56b that contacts the second pin 55b are the same in the direction perpendicular to the direction in which the second contact portion 56b and the first contact portion 56a extend. The shoe 56s is attached below the main body 56m when the main body 56m is in contact with the first pin 55a and the second pin 55b. This shoe 56s contacts the lower contact surface 35 of the lower half outer vehicle compartment 32d and serves to prevent damage to this lower contact surface 35. For this reason, the shoe 56s is made of resin or the like. As shown in Figures 10 and 11, the main body 56m has a rod insertion hole 56h formed at a position between the first pin 55a and the second pin 55b in the axial direction Da when the main body 56m is in contact with the first pin 55a and the second pin 55b, through which the rod 58 of the distance adjustment mechanism 57 can be inserted.

[0047] In preparation step S1 of this embodiment, the deformation adjustment device 50x described above is prepared.

[0048] In the device arrangement step S2 of this embodiment, first, a portion of the first pin 55a of the outer cabin side member 53x is inserted into the first bolt hole 34a of the lower half outer cabin 32d, and a portion of this first pin 55a protrudes from the first bolt hole 34a. Similarly, a portion of the second pin 55b of the outer cabin side member 53x is inserted into the second bolt hole 34b of the lower half outer cabin 32d, and a portion of this second pin 55b protrudes from the second bolt hole 34b. Next, the rod 58 of the deformation adjustment device 50x is inserted into the rod insertion hole 56h of the pin contact member 56, and then the tip of this rod 58 is inserted into the rod fixing hole 51h of the inner cabin side member 51, and this rod 58 is fixed to the inner cabin side member 51. Next, the inner cabin side member 51 of the deformation adjustment device 50x is placed on the protruding portion 27. screw It is fixed at 52. As a result, the longitudinal direction of the rod 58 is maintained in the radial direction Dr. Then, the nut 59 of the deformation adjustment device 50x is screwed onto the male thread of the rod 58, and the pin contact member 56 is brought into contact with the first pin 55a and the second pin 55b. That is, the first contact portion 56a of the pin contact member 56 is brought into contact with the first pin 55a, and the second contact portion 56b of the pin contact member 56 is brought into contact with the second pin 55b. Note that in the device arrangement step S2, the arrangement order of each component constituting the deformation adjustment device 50x is not limited to the above order.

[0049] As shown in Figure 3, due to the deformation of the lower inner compartment 22d, the deformed lower inner compartment 22d ( In Figure 3If the vertical dimension Dv of the lower inner compartment 22d (shown by dashed lines) increases and the horizontal dimension of the lower inner compartment 22d decreases, as shown in Figures 10 and 11, the pin contact member 56 is positioned radially outward Dro of the first pin 55a and the second pin 55b, and the pin contact member 56 is brought into contact with the radially outward Dro surfaces of the first pin 55a and the second pin 55b. Then, the nut 59 is screwed onto the male thread of the rod 58 so that the nut 59 is positioned radially outward Dro of the pin contact member 56. Furthermore, if, as shown in Figure 4, the deformation of the lower inner bay 22d causes the lateral dimension of the deformed lower inner bay 22d (shown as a dashed line in Figure 4) to lengthen and the vertical dimension Dv of the lower inner bay 22d to shorten, then, as shown in Figures 13 and 14, the pin contact member 56 is positioned radially inward Dri of the first pin 55a and the second pin 55b, and the pin contact member 56 is brought into contact with the radially inward Dri surfaces of the first pin 55a and the second pin 55b. Then, the nut 59 is screwed onto the male thread of the rod 58 so that it is positioned radially inward Dri of the pin contact member 56. In this case, it is necessary to screw the nut 59 onto the male thread of the rod 58 before inserting the rod 58 through the rod insertion hole 56h of the pin contact member 56.

[0050] In the deformation adjustment step S3 of this embodiment, the nut 59 of the deformation adjustment device 50x is operated to change the radial distance Dr between the inner cabin side member 51 and the outer cabin side member 53x. For example, if in the device arrangement step S2, as shown in Figures 10 and 11, the nut 59 is screwed onto the male thread of the rod 58 so that it is positioned radially outward Dr of the pin contact member 56, then rotating the nut 59 relative to the rod 58 reduces the radial distance Dr between the inner cabin side member 51 and the outer cabin side member 53x. As a result, the inner cabin side member 51 is pulled radially outward Dr. As shown in Figure 3, the operation of the nut 59 described above causes deformation of the lower inner casing 22d, resulting in an increase in the vertical dimension Dv and a decrease in the horizontal dimension of the lower inner casing 22d. However, the vertical dimension Dv of the lower inner casing 22d decreases, and the horizontal dimension of the lower inner casing 22d increases, resulting in a reduction in the amount of deformation of the lower inner casing 22d. Furthermore, if, in the device arrangement step S2, the nut 59 is screwed onto the male thread of the rod 58 so that it is positioned radially inward Dri of the pin contact member 56, as shown in Figures 13 and 14, the nut 59 is rotated relative to the rod 58, increasing the radial distance Dr between the inner casing member 51 and the outer casing member 53x. As a result, the inner casing member 51 is pushed radially inward Dri. As shown in Figure 4, the operation of the nut 59 described above causes the lateral dimension of the lower inner bay 22d to lengthen and the vertical dimension Dv of the lower inner bay 22d to shorten due to deformation of the lower inner bay 22d, but the lateral dimension of the lower inner bay 22d shortens and the vertical dimension Dv of the lower inner bay 22d lengthens, resulting in a reduction in the amount of deformation of the lower inner bay 22d.

[0051] This completes all steps in the deformation adjustment method for the lower inner compartment 22d.

[0052] As described above, in this embodiment as well, the deformation of the lower inner casing 22d can be adjusted, so problems such as contact between the lower inner casing 22d and the rotor 10 during disassembly or assembly of the rotating machine can be avoided. Furthermore, in this embodiment as well, when the deformation of the lower inner casing 22d is being adjusted using the deformation adjustment device 50x, the deformation adjustment device 50x is not present on the lower contact surface 25 of the lower inner casing 22d, so the upper inner casing 22u can be easily connected to the lower inner casing 22d while the deformation is being adjusted.

[0053] In this embodiment as well, by rotating the nut 59, which has a female thread formed on it, relative to the rod 58, the distance between the inner cabin side member 51 and the outer cabin side member 53x can be shortened or widened. Therefore, in this embodiment as well, the deformation of the lower inner cabin 22d can be easily fine-tuned.

[0054] Furthermore, since the outer passenger compartment side member 53x of this embodiment has a pin contact member 56 that can contact the first pin 55a and the second pin 55b, as described above, even if there are no bolt holes 34 of the lower half outer passenger compartment 32d on the virtual line LV, and even if the radial Dr position of the second pin 55b inserted into the second bolt hole 34b is different from the radial Dr position of the first pin 55a inserted into the first bolt hole 34a, this embodiment can adjust the deformation of the lower half inner passenger compartment 22d.

[0055] In this embodiment, the second contact portion 56b is shifted relative to the first contact portion 56a in a direction perpendicular to the direction in which the second contact portion 56b and the first contact portion 56a extend. As a result, with respect to the direction of movement of the rod 58 due to the operation of the nut 59, the surface of the first contact portion 56a that contacts the first pin 55a and the surface of the second contact portion 56b that contacts the second pin 55b both expand in a direction perpendicular to the direction of movement of the rod 58 due to the operation of the nut 59. Therefore, in this embodiment, when the nut 59 is operated, the direction of the force received by the pin contact member 56 from the first pin 55a, the direction of the force received by the pin contact member 56 from the second pin 55b, and the direction of the force received by the pin contact member 56 from the nut 59 are all in the radial direction Dr, making it easier to operate the nut 59 and allowing the rod 58 to be moved easily and without force.

[0056] In this embodiment, the distance adjustment mechanism 57 includes a rod 58 and a nut 59. However, the nut 59 may be omitted. In this case, the pin contact member 56 is used as the nut. Specifically, the pin contact member 56 has a female thread that can be screwed onto the male thread of the rod 58. Furthermore, the rod 58 is attached to the protrusion 27 so that it is immovable in the radial direction Dr and the axial direction Da, but rotatable. Then, in the deformation adjustment step S3, the rod 58 is rotated relative to the pin contact member 56 to change the distance between the inner cabin side member 51 and the outer cabin side member 53x.

[0057] Furthermore, the first pin 55a and the second pin 55b in this embodiment may be dedicated parts for the deformation adjustment device 50x, but they may also be external vehicle compartment fastening bolts 31.

[0058] "Variations" The deformation adjustment devices 50, 50x in each of the above embodiments have outer vehicle interior side members 53, 53x. However, the deformation adjustment devices 50, 50x do not need to have outer vehicle interior side members 53, 53x. In this case, the inner vehicle interior side member 51 attached to the protruding part 27 is pushed with a jack or the like, or this inner vehicle Room member 51 The deformation adjustment process S3 is performed by pulling it with a chain hoist or the like.

[0059] In the above embodiment, the lower inner casing body 23 and the inner casing attachment 26 of the rotating machine are separate parts. However, the lower inner casing body 23 and the inner casing attachment 26 Toga, It may also be a single-piece molded part.

[0060] This disclosure is not limited to the embodiments described above. Various additions, modifications, substitutions, partial deletions, etc., are possible without departing from the conceptual idea and spirit of the present invention derived from the claims and their equivalents.

[0061] "Addendum" The method for adjusting the deformation of the lower inner compartment 22d in the above embodiments and modified examples can be understood, for example, as follows.

[0062] (1) The method for adjusting the deformation of the lower inner casing in the first embodiment is applicable to the following rotating machinery. This rotating machine comprises a rotor 10 rotatable about a horizontally extending axis Ar, an inner casing 20 covering the outer circumference of the rotor 10, and an outer casing 30 covering the outer circumference of the inner casing 20. The inner casing 20 has a semi-circular shape about the axis Ar and includes a lower half inner casing 22d covering the portion of the rotor 10 below the axis Ar (Dvd), and an upper half inner casing 22u covering the portion of the rotor 10 above the axis Ar (Dvu). The outer casing 30 has a semi-circular shape about the axis Ar and includes a lower half outer casing 32d covering the outer circumference of the lower half inner casing 22d, and an upper half outer casing 32u covering the outer circumference of the upper half inner casing 22u. The lower inner casing 22d has a semi-circular shape centered on the axis Ar and comprises a lower inner casing body 23 that covers the portion of the rotor 10 below the axis Ar (Dvd), and an inner casing attachment 26 provided on the lower inner casing body 23. The lower inner casing body 23 has lower contact surfaces 25 that extend horizontally at both ends in the circumferential direction Dc with respect to the axis Ar and can contact the upper inner casing 22u. The inner casing attachment 26 has a projection 27 that protrudes radially outward (Dro) from the lower inner casing body 23 with respect to the axis Ar and protrudes upward (Dvu) from the lower contact surface 25. In the above method for adjusting the deformation of the lower inner casing 22d in a rotating machine, The following steps are performed: Preparation step S1: Prepare deformation adjustment devices 50, 50x having an inner cabin side member 51 that can be attached to the protrusion 27 so as not to move relative to it in the radial direction Dr with respect to the axis Ar; Device arrangement step S2: Attach the inner cabin side member 51 to the protrusion 27 and arrange the deformation adjustment devices 50, 50x having the inner cabin side member 51 around the protrusion 27; Deformation adjustment step S3: Push the inner cabin side member 51 attached to the protrusion 27 radially inward Dri with respect to the axis Ar, or pull the inner cabin side member 51 radially outward Dro.

[0063] In this embodiment, the deformation of the lower inner casing 22d can be adjusted, thus avoiding problems such as contact between the lower inner casing 22d and the rotor 10 during disassembly or assembly of the rotating machine. Furthermore, in this embodiment, when the deformation of the lower inner casing 22d is being adjusted using the deformation adjustment devices 50, 50x, the deformation adjustment devices 50, 50x are not present on the lower contact surfaces 25, 35 of the lower inner casing 22d, so the upper inner casing 22u can be easily connected to the lower inner casing 22d during deformation adjustment.

[0064] (2) The method for adjusting the deformation of the lower half of the interior vehicle compartment in the second embodiment is: In the deformation adjustment method for the lower half inner casing 22d according to the first embodiment, the deformation adjustment devices 50, 50x prepared in the preparation step S1 include outer casing side members 53, 53x that can be attached to the circumferential Dc end of the lower half outer casing 32d so as not to move relative to the radially outer Dro or radially inner Dri with respect to the lower half outer casing 32d, and a distance adjustment mechanism 57 that can adjust the radial distance Dr between the inner casing side member 51 attached to the protrusion 27 and the outer casing side members 53, 53x attached to the lower half outer casing 32d. In the device arrangement step S2, the outer casing side members 53, 53x are attached to the lower half outer casing 32d, and the distance adjustment mechanism 57 is provided. In the deformation adjustment step S3, the distance adjustment mechanism 57 is operated to shorten the radial distance Dr between the inner cabin side member 51 and the outer cabin side members 53, 53x, or to widen the radial distance Dr between the inner cabin side member 51 and the lower half outer cabin 32d.

[0065] In this embodiment, by operating the distance adjustment mechanism 57, the distance between the inner passenger compartment member 51 and the outer passenger compartment members 53, 53x can be shortened, or the distance between the inner passenger compartment member 51 and the lower half outer passenger compartment 32d can be widened. Therefore, in this embodiment, the deformation of the lower half inner passenger compartment 22d can be easily adjusted.

[0066] (3) The method for adjusting the deformation of the lower half of the interior vehicle compartment in the third embodiment is: In the method for adjusting the deformation of the lower half-inner casing 22d in the second embodiment, the lower half-outer casing 32d has, at both ends in the circumferential direction Dc, a lower contact surface 35 that extends horizontally and can contact the upper half-outer casing 32u, and a plurality of bolt holes 34 that are recessed from the lower contact surface 35 and through which fastening bolts 31 for connecting the upper half-outer casing 32u and the lower half-outer casing 32d pass. In the device arrangement step S2, at least one of the plurality of bolt holes 34 is used to attach the outer casing side members 53, 53x to the lower half-outer casing 32d so that they cannot move relative to the radially outer Dro or the radially inner Dri.

[0067] In this embodiment, the outer cabin side members 53, 53x can be attached to the lower half outer cabin 32d in a manner that prevents relative movement to the radially outer Dro or radially inner Dri by utilizing the bolt holes 34 of the lower half outer cabin 32d. Therefore, in this embodiment, the configuration for attaching the outer cabin side members 53, 53x to the lower half outer cabin 32d in a manner that prevents relative movement to the radially outer Dro or radially inner Dri can be simplified.

[0068] (4) The method for adjusting the deformation of the lower half of the interior vehicle compartment in the fourth embodiment is: In the deformation adjustment method for the lower inner bay 22d according to the third embodiment, the outer bay side member 53 has a pin 54 that can be inserted into one of the multiple bolt holes 34. In the device arrangement step S2, a part of the pin 54 is inserted into one of the multiple bolt holes 34, and the other part of the pin 54 is made to protrude from the one bolt hole 34.

[0069] (5) The method for adjusting the deformation of the lower half of the interior vehicle compartment in the fifth embodiment is: In the deformation adjustment method for the lower inner passenger compartment 22d according to the third embodiment, the outer passenger compartment side member 53x has a first pin 55a and a second pin 55b that can be inserted into any of the bolt holes 34 of the plurality of bolt holes 34, and a pin contact member 56 that can contact the first pin 55a and the second pin 55b. In the device arrangement step S2, a part of the first pin 55a is inserted into the first bolt hole 34a of the plurality of bolt holes 34, and the other part of the first pin 55a protrudes from the first bolt hole 34a, a part of the second pin 55b is inserted into the second bolt hole 34b of the plurality of bolt holes 34, and the other part of the second pin 55b protrudes from the second bolt hole 34b, and the pin contact member 56 is brought into contact with the first pin 55a and the second pin 55b.

[0070] (6) The method for adjusting the deformation of the lower half of the interior vehicle compartment in the sixth embodiment is: In the deformation adjustment method of the lower inner casing 22d according to the fifth embodiment, the first pin 55a is the fastening bolt 31 that can be inserted into the first bolt hole 34a. The second pin 55b is the Second bolt hole 34b The fastening bolt 31 is insertable through it.

[0071] (7) The method for adjusting the deformation of the lower half of the interior vehicle compartment in the seventh embodiment is: In the deformation adjustment method for the lower inner compartment 22d according to any one of the second to sixth embodiments, the distance adjustment mechanism 57 includes a rod 58 having a male thread formed on it, and a nut 59 or the outer compartment side member 53x having a female thread that can be screwed onto the male thread of the rod 58. In the device arrangement step S2, the rod 58 is inserted through the outer compartment side member 53x, the tip of the rod 58 is attached to the inner compartment side member 51, and the male thread of the rod 58 is screwed onto the female thread. In the deformation adjustment step S3, the nut 59 or the outer compartment side member 53x having the female thread formed on it is rotated relative to the rod 58.

[0072] In this embodiment, by rotating the nut 59 or the outer cabin side member 53x, which has a female thread formed on it, relative to the rod 58, the radial distance Dr between the inner cabin side member 51 and the outer cabin side members 53, 53x can be reduced, or the radial distance Dr between the inner cabin side member 51 and the lower half outer cabin 32d can be increased. Therefore, in this embodiment, the deformation of the lower half inner cabin 22d can be easily fine-tuned. [Explanation of symbols]

[0073] 10: Rotor 11: Rotor shaft 12: Moving blade row 13: Moving blade 15: Stator Wing Arrow 16: Silent Wing 20: Inner compartment 21: Bolts for fastening the interior of the vehicle compartment 22u: Upper half interior 22d:Lower half interior 23:Lower half interior body 24: Bolt holes 25: Lower contact surface 26: Interior compartment accessories 27:Protrusion 28: Screw 30: Foreign car room 31: Bolts for fastening the exterior interior of the vehicle 32u: Upper outer compartment 32d: Lower half outer compartment 33:Lower half outer compartment main body 34: Bolt holes 34a: First bolt hole 34b: Second bolt hole 35: Lower contact surface 36: External car interior accessories 50,50x: Deformation adjustment device 51: Interior passenger compartment side member 51h: Rod fixing hole 52: Screw 53, 53x: Exterior interior side member 54: Pin 54h: Rod insertion hole 55a: First pin 55b: Second pin 56: Pin contact member 56m: Main unit 56a: First contact part 56b: Second contact part 56c: Connection part 56h: Rod insertion hole 56s: Shoe 57: Distance adjustment mechanism 58: Rod 59: Nut Ar: Axis line Da: Axial direction Dc: Circumferential direction Dr: Radial direction Dri: Radial inner side Dro: Radial outer side DV: Vertical direction Dvu: Upper side DVD:Bottom side LV: Virtual Line

Claims

1. A rotor that can rotate around an axis extending horizontally, An inner casing covering the outer circumference of the rotor, An outer compartment that covers the outer perimeter of the aforementioned inner compartment, Equipped with, The aforementioned inner casing has a semi-circular shape with respect to the axis and includes a lower half inner casing that covers the portion of the rotor below the axis, and an upper half inner casing that has a semi-circular shape with respect to the axis and covers the portion of the rotor above the axis. The aforementioned outer compartment has a lower half outer compartment that is semi-circular in shape with respect to the axis and covers the outer periphery of the lower half inner compartment, and an upper half outer compartment that is semi-circular in shape with respect to the axis and covers the outer periphery of the upper half inner compartment. The lower inner casing has a semi-circular shape with respect to the axis and comprises a lower inner casing body that covers the portion of the rotor below the axis, and an inner casing attachment provided on the lower inner casing body. The lower half interior casing body has lower contact surfaces that extend horizontally at both ends in the circumferential direction with respect to the axis and are capable of contacting the upper half interior casing. The aforementioned interior casing attachment has a projection that protrudes radially outward from the lower half interior casing body with respect to the axis and protrudes upward from the lower contact surface. In a method for adjusting the deformation of the lower inner casing of a rotating machine, A preparation step of preparing a deformation adjustment device having an inner vehicle compartment side member that can be attached to the protruding portion so as not to move relative to it in the radial direction with respect to the axis, A device arrangement step involves attaching the inner cabin side member to the protruding portion and arranging the deformation adjustment device having the inner cabin side member around the protruding portion and at a position avoiding the lower contact surface, A deformation adjustment step of pushing the inner cabin side member attached to the protruding portion radially inward with respect to the axis, or pulling the inner cabin side member radially outward, A method for adjusting the deformation of the lower half of the interior passenger compartment.

2. In the method for adjusting the deformation of the lower half of the interior vehicle compartment according to claim 1, The deformation adjustment device prepared in the above preparation step is An outer vehicle compartment side member is provided at the circumferential end of the lower half outer vehicle compartment, which is attached to the lower half outer vehicle compartment in a direction that is not relative to the radially outward or radially inward direction, A distance adjustment mechanism that can adjust the radial distance between the inner cabin side member attached to the protruding portion and the outer cabin side member attached to the lower half outer cabin, It has, In the device arrangement step, the outer vehicle compartment side member is attached to the lower half outer vehicle compartment, and the distance adjustment mechanism is provided. In the deformation adjustment step, the distance adjustment mechanism is operated to reduce the radial distance between the inner cabin side member and the outer cabin side member, or to increase the radial distance between the inner cabin side member and the lower half outer cabin. A method for adjusting the deformation of the lower half of the passenger compartment.

3. In the method for adjusting the deformation of the lower half of the interior vehicle compartment according to claim 2, The lower half exterior compartment has, at both ends in the circumferential direction, a lower contact surface that extends horizontally and can contact the upper half exterior compartment, and a plurality of bolt holes that are recessed from the lower contact surface and through which fastening bolts for connecting the upper half exterior compartment and the lower half exterior compartment pass. In the device arrangement step, at least one of the plurality of bolt holes is used to attach the outer vehicle compartment side member to the lower half outer vehicle compartment so that it cannot move relative to the radially outward or radially inward direction. A method for adjusting the deformation of the lower half of the passenger compartment.

4. In the method for adjusting the deformation of the lower half of the interior vehicle compartment according to claim 3, The aforementioned exterior vehicle interior side member has a pin that can be inserted into one of the multiple bolt holes, In the device arrangement step, a portion of the pin is inserted into one of the multiple bolt holes, and the other portion of the pin is made to protrude from the one bolt hole. A method for adjusting the deformation of the lower half of the passenger compartment.

5. In the method for adjusting the deformation of the lower half of the interior vehicle compartment according to claim 3, The exterior vehicle interior side member has a first pin and a second pin that can be inserted into any of the bolt holes among the plurality of bolt holes, and a pin contact member that can contact the first pin and the second pin. In the apparatus arrangement step, a portion of the first pin is inserted into the first bolt hole among the plurality of bolt holes, and the other portion of the first pin is made to protrude from the first bolt hole, a portion of the second pin is inserted into the second bolt hole among the plurality of bolt holes, the other portion of the second pin is made to protrude from the second bolt hole, and the pin contact member is made to contact the first pin and the second pin. A method for adjusting the deformation of the lower half of the passenger compartment.

6. In the method for adjusting the deformation of the lower half of the interior vehicle compartment according to claim 5, The first pin is the fastening bolt that can be inserted into the first bolt hole, The second pin is the fastening bolt that can be inserted into the second bolt hole. A method for adjusting the deformation of the lower half of the passenger compartment.

7. A method for adjusting the deformation of the lower half of the interior vehicle compartment according to any one of claims 2 to 6, The distance adjustment mechanism comprises a rod having a male thread formed on it, and a nut or an external vehicle interior side member having a female thread that can be screwed onto the male thread of the rod. In the device placement step, the rod is inserted into the outer vehicle compartment side member, the tip of the rod is attached to the inner vehicle compartment side member, and the male thread of the rod is screwed into the female thread. In the deformation adjustment step, the nut or the exterior vehicle interior side member on which the female thread is formed is rotated relative to the rod. A method for adjusting the deformation of the lower half of the passenger compartment.

Images