Adjustable assembly support of unit body in gas turbine

Abstract

The utility model discloses an adjustable assembly support for a unit body in a gas turbine, which belongs to the technical field of gas turbine process equipment, solves the problem that the gap between a stator component and a rotor component of the existing assembly support for the unit body of the gas turbine cannot be adjusted, and comprises a support component and an adjusting component arranged on the support component, the support assembly comprises a bottom plate and a supporting plate, and the bottom plate and the supporting plate are connected through a plurality of supporting columns. A positioning ring is arranged in the middle of the supporting plate, the adjusting assembly comprises a mandrel, the bottom of the mandrel penetrates through the positioning ring to be installed in the fixing base of the bottom plate, a supporting assembly is arranged on the top of the mandrel, and a lifting assembly acting on the supporting assembly is arranged in the middle of the mandrel. According to the utility model, the stator assembly is positioned through the positioning ring, and the rotor assembly is supported and positioned through the supporting assembly, so that the position of the rotor assembly is adjusted through the lifting assembly, and the gap between the stator assembly and the rotor assembly is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of gas turbine process equipment, and particularly relates to an adjustable assembly support for a unit body in a gas turbine. Background Technique

[0002] Assembly is the last stage in the mechanical manufacturing of products, the final inspection link of product parts, and also the most important part of the manufacturing process. Due to the precise structure and complex assembly relationship of each component of a gas turbine, external process equipment must be used for assistance to meet the design requirements. For the assembly of a certain type of existing gas turbine unit body, the unit body is composed of a stator assembly and a rotor assembly. The stator assembly mainly includes an outer casing, an inner casing, and stator blades fixed on the casing, etc. The rotor assembly mainly includes a main shaft, a turbine disk, and moving blades, etc. The assembly of this unit body needs to be carried out on an assembly support. The existing assembly support has poor processability, is cumbersome to assemble, cannot adjust the gap between the stator assembly and the rotor assembly, and cannot effectively support and position the stator assembly and the rotor assembly, with poor flexibility. Content of the Utility Model

[0003] In view of the above problems in the prior art, the utility model provides an adjustable assembly support for a unit body in a gas turbine, which solves the problem that the existing assembly support for a gas turbine unit body cannot adjust the gap between the stator assembly and the rotor assembly.

[0004] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0005] An adjustable assembly support for a unit body in a gas turbine is provided, which includes a support assembly and an adjustment assembly arranged on the support assembly. The support assembly includes a bottom plate and a support plate, and the bottom plate and the support plate are connected by multiple support columns; a positioning ring is arranged in the middle of the support plate. The adjustment assembly includes a core shaft. The bottom of the core shaft passes through the positioning ring and is installed in a fixed seat on the bottom plate. A support assembly is arranged at the top of the core shaft, and a lifting assembly acting on the support assembly is arranged in the middle of the core shaft.

[0006] In this scheme, the stator assembly of the unit body in the gas turbine is placed in the middle of the support plate, and the stator assembly is positioned through the positioning ring. The rotor assembly is supported and positioned through the support assembly, so that the position of the rotor assembly is adjusted through the lifting assembly, and thus the gap between the stator assembly and the rotor assembly is adjusted.

[0007] Further, the lifting assembly includes a bushing sleeved on the core shaft; an adjusting nut sleeved on the core shaft is arranged at the bottom of the bushing, and the adjusting nut is threadedly connected with the core shaft; a plurality of handles are arranged on the circumference of the adjusting nut.

[0008] Furthermore, the support assembly includes an adapter ring, which is connected to the top of the sleeve via a flange; the adapter ring is provided with an inner support ring via a transition ring.

[0009] Furthermore, a plurality of first positioning holes are opened on the circumference of the bottom plate, a plurality of second positioning holes matching with the first positioning holes are opened on the circumference of the support plate, and both ends of the support column are respectively embedded in the first positioning holes and the second positioning holes to connect the bottom plate and the support plate.

[0010] Furthermore, a third positioning hole is opened in the middle of the support plate, and a positioning ring is arranged at the third positioning hole, and the positioning ring is concentric with the third positioning hole.

[0011] Furthermore, an annular groove is provided on the upper surface of the support plate, and the annular groove is concentric with the third positioning hole.

[0012] The utility model discloses an adjustable assembly support for a unit body in a gas turbine, and its beneficial effects are:

[0013] The utility model places the stator assembly of the unit body in the gas turbine in the middle of the support plate, and positions the stator assembly through a positioning ring, and supports and positions the rotor assembly through the support assembly, so as to detect whether the gap between the stator assembly and the rotor assembly meets the design requirements. If the design requirements are not met, the adjustment nut is rotated by a handle to raise or lower the position of the rotor assembly until the gap meets the design requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic structural diagram of an adjustable assembly support of a unit body in a gas turbine.

[0015] Figure 2 The utility model is a schematic diagram of the top view of the adjustable assembly support of a unit body in a gas turbine.

[0016] Figure 3 It is a structural schematic diagram of the bottom plate of the utility model.

[0017] Figure 4 It is a structural schematic diagram of the support plate of the utility model.

[0018] Figure 5 It is a structural schematic diagram of the adapter ring of the utility model.

[0019] Figure 6 It is a structural schematic diagram of the inner support ring of the utility model.

[0020] Among them, 1. base plate; 101. first positioning hole; 2. support plate; 201. second positioning hole; 202. third positioning hole; 203. annular groove; 3. support column; 4. positioning ring; 5. core shaft; 6. fixing seat; 7. sleeve; 8. adapter ring; 9. transition ring; 10. inner support ring; 11. adjustment nut; 12. handle. DETAILED DESCRIPTION

[0021] The specific implementation methods of the utility model are described below to facilitate technical personnel in this technical field to understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.

[0022] This embodiment provides an adjustable assembly support for a unit body in a gas turbine, the purpose of which is to solve the problem that the assembly support for the existing gas turbine unit body cannot adjust the gap between the stator assembly and the rotor assembly. Figure 1-Figure 6 , the specific structure of this embodiment will be described in detail below.

[0023] An adjustable assembly support for a unit body in a gas turbine comprises a support assembly and an adjustment assembly arranged on the support assembly.

[0024] Among them, the support assembly includes a base plate 1 and a support plate 2, and the base plate 1 and the support plate 2 are connected by multiple support columns 3; a positioning ring 4 is arranged in the middle of the support plate 2; the adjustment assembly includes a core shaft 5, the bottom of the core shaft 5 passes through the positioning ring 4 and is installed in the fixed seat 6 of the base plate 1; a support assembly is arranged on the top of the core shaft 5, and a lifting assembly acting on the support assembly is arranged in the middle of the core shaft 5.

[0025] In this embodiment, the fixing seat 6 is cylindrical and fixedly arranged at the center position of the upper surface of the base plate 1. The core shaft 5 adopts a stepped shaft structure. A flange is arranged on the outer side of the bottom of the core shaft 5. A through hole is opened on the flange, and threaded holes matching the through holes on the flange are opened on the circumference of the opening of the fixing seat 6. When the bottom of the core shaft 5 is embedded in the fixing seat 6, the flange and the fixing seat 6 are connected by screws, thereby connecting the fixing seat 6 and the core shaft 5. The core shaft 5 is concentric and coaxial with the positioning ring 4.

[0026] Therefore, after the stator assembly of the unit body in the gas turbine is placed in the middle of the support plate 2 and positioned by the positioning ring 4, the rotor assembly is supported and positioned by the support assembly, so that it can be detected whether the gap between the stator assembly and the rotor assembly meets the design requirements. If it does not meet the design requirements, the adjustment nut is turned by the handle to raise or lower the position of the rotor assembly until the gap meets the design requirements.

[0027] Optionally, the bottom plate 1 is provided with a plurality of fan-shaped through holes, and the support plate 2 is provided with a plurality of circular through holes, which are used to reduce the weight of the bottom plate 1 and the support plate 2 respectively.

[0028] Specifically, a plurality of first positioning holes 101 are opened on the circumference of the base plate 1, and a plurality of second positioning holes 201 matching with the first positioning holes 101 are opened on the circumference of the support plate 2. Both ends of the support column 3 are respectively embedded in the first positioning holes 101 and the second positioning holes 201 to connect the base plate 1 and the support plate 2.

[0029] In this embodiment, corresponding first positioning holes 101 and second positioning holes 201 are provided on the base plate 1 and the support plate 2, and the specific number thereof can be set according to actual needs. Stoppers are provided at both ends of the support column 3, and the stopper at one end is used to position and install the support column 3 on the base plate 1, and the stopper at the other end is used to position and install the support plate 2, thereby connecting the base plate 1 and the support plate 2 through the support column 3.

[0030] Specifically, a third positioning hole 202 is provided in the middle of the support plate 2, and the positioning ring 4 is arranged at the third positioning hole 202, and the positioning ring 4 is concentric with the third positioning hole 202. A stopper is provided on the third positioning hole 202 for positioning and installing the positioning ring 4, and a plurality of threaded holes are provided on the lower surface of the positioning ring 4, which are connected to the threaded holes by screws passing through the support plate 2, so that the positioning ring 4 is installed and fixed at the third positioning hole 202 in the middle of the support plate 2, and the outer circle of the positioning ring 4 is concentric with the inner casing installation edge of the stator assembly.

[0031] Specifically, the upper surface of the support plate 2 is provided with an annular groove 203, which is concentric with the third positioning hole 202. The annular groove 203 fits with the outer casing of the stator assembly, so that when the stator assembly is placed on the support plate 2, the annular groove 203 can position the outer casing of the stator assembly, so that the outer circle of the positioning ring 4 is concentric with the mounting edge of the inner casing of the stator assembly.

[0032] Specifically, the lifting assembly includes a sleeve 7 sleeved on the core shaft 5; an adjusting nut 11 sleeved on the core shaft 5 is provided at the bottom of the sleeve 7, and the adjusting nut 11 is threadedly connected to the core shaft 5; a plurality of handles 12 are provided on the circumference of the adjusting nut 11.

[0033] In this embodiment, the core shaft 5 adopts a stepped shaft, and the sleeve 7 is sleeved on the top of the core shaft 5. The adjusting nut 11 at the bottom of the sleeve 7 is connected to the middle part of the core shaft 5 through a thread. A plurality of threaded holes are evenly opened in the circumference of the adjusting nut 11, and a plurality of handles 12 are arranged in the threaded holes. The number of handles 12 can be set according to needs, and then the adjusting nut 11 is rotated by the handle 12 to make the adjusting nut 11 move up and down in the middle part of the core shaft 5, thereby pushing the sleeve 7 to move up and down along the core shaft 5.

[0034] Specifically, the support assembly includes an adapter ring 8 , which is connected to the top of the shaft sleeve 7 via a flange; the adapter ring 8 is provided with an inner support ring 10 via a transition ring 9 .

[0035] In this embodiment, a flange is provided on the top circumference of the sleeve 7, and a plurality of through holes are evenly formed on the flange. A threaded hole matching the through holes on the flange is formed on the adapter ring 8, so that when the top of the sleeve 7 is embedded in the inner circle of the adapter ring 8, screws are passed through the through holes to connect with the threaded holes, thereby connecting the sleeve 7 and the adapter ring 8.

[0036] The adapter ring 8 and the inner support ring 10 are both provided with stoppers for positioning the transition ring 9, and a plurality of threaded holes are respectively provided at both ends of the transition ring 9, so that screws are respectively passed through the adapter ring 8 and the inner support ring 10 to connect with the threaded holes on the transition ring 9, so that the transition ring 9 is respectively connected to the adapter ring 8 and the inner support ring 10. The outer circle of the inner support ring 10 is concentrically arranged with the mounting edge of the rotor assembly.

[0037] Although the specific implementation of the utility model is described in detail in conjunction with the drawings, it should not be understood as limiting the scope of protection of this patent. Within the scope described in the claims, various modifications and variations that can be made by those skilled in the art without creative work still fall within the scope of protection of this patent.

Claims

1. An adjustable assembly support for a unit body in a gas turbine, characterized in that: It comprises a support assembly and an adjustment assembly arranged on the support assembly; The support assembly comprises a base plate (1) and a support plate (2), wherein the base plate (1) and the support plate (2) are connected via a plurality of support columns (3); a positioning ring (4) is provided in the middle of the support plate (2); The adjustment assembly comprises a core shaft (5), the bottom of the core shaft (5) passes through a positioning ring (4) and is mounted in a fixing seat (6) of the base plate (1); a supporting assembly is arranged at the top of the core shaft (5), and a lifting assembly acting on the supporting assembly is arranged in the middle of the core shaft (5).

2. The adjustable assembly support for a unit body in a gas turbine according to claim 1, characterized in that: The lifting assembly comprises a sleeve (7) sleeved on a core shaft (5); an adjusting nut (11) sleeved on the core shaft (5) is arranged at the bottom of the sleeve (7), the adjusting nut (11) being threadably connected to the core shaft (5); and a plurality of handles (12) are arranged on the circumference of the adjusting nut (11).

3. The adjustable assembly support for a unit body in a gas turbine according to claim 2, characterized in that: The support assembly comprises an adapter ring (8), wherein the adapter ring (8) is connected to the top of the shaft sleeve (7) via a flange; the adapter ring (8) is provided with an inner support ring (10) via a transition ring (9).

4. The adjustable assembly support for a unit body in a gas turbine according to claim 1, characterized in that: A plurality of first positioning holes (101) are provided on the circumference of the bottom plate (1), a plurality of second positioning holes (201) that match the first positioning holes (101) are provided on the circumference of the support plate (2), and two ends of the support column (3) are respectively embedded in the first positioning hole (101) and the second positioning hole (201), thereby connecting the bottom plate (1) and the support plate (2).

5. The adjustable assembly support for a unit body in a gas turbine according to claim 4, characterized in that: A third positioning hole (202) is provided in the middle of the support plate (2), and the positioning ring (4) is arranged at the third positioning hole (202), and the positioning ring (4) and the third positioning hole (202) are concentric.

6. The adjustable assembly support for a unit body in a gas turbine according to claim 5, characterized in that: An annular groove (203) is provided on the upper surface of the support plate (2), and the annular groove (203) is concentric with the third positioning hole (202).

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