CN220302220U - Thermal expansion positioning structure of gas turbine - Google Patents
Thermal expansion positioning structure of gas turbine Download PDFInfo
- Publication number
- CN220302220U CN220302220U CN202321555002.8U CN202321555002U CN220302220U CN 220302220 U CN220302220 U CN 220302220U CN 202321555002 U CN202321555002 U CN 202321555002U CN 220302220 U CN220302220 U CN 220302220U
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- China
- Prior art keywords
- gas turbine
- positioning
- thermal expansion
- lifting lug
- sliding rod
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- 238000007789 sealing Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001447 compensatory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The utility model relates to a thermal expansion positioning structure of a gas turbine, which belongs to the field of positioning structures, wherein the gas turbine is fixed on a box body through the positioning structure in a limiting way, the positioning structure comprises a lifting lug structure, a ball bearing, a connecting clamp, a sliding rod and a positioning seat, the ball bearing and the connecting clamp are arranged in the lifting lug structure, the top of the sliding rod penetrates through the ball bearing and then is fixed on the top of the lifting lug structure through the connecting clamp, and the bottom of the sliding rod is connected with the positioning seat in a sliding way; the high-temperature positioning structure of the gas turbine is simple in structure and easy to install, can meet the positioning requirement of the gas turbine working in a high-temperature environment, and compensates the thermal expansion of the gas turbine due to the high-temperature working, so that the thermal expansion positioning structure of the gas turbine is provided.
Description
Technical Field
The utility model relates to a thermal expansion positioning structure of a gas turbine, and belongs to the field of positioning structures.
Background
The gas turbine can generate thermal expansion due to high temperature in the operation process, displacement is generated in the radial direction due to thermal expansion, and the common support structure has the positioning function, but the support of the gas turbine is a compensatory support structure due to the consideration of the thermal expansion of the gas turbine, so that a thermal expansion positioning structure is needed outside the support structure of the gas turbine.
Disclosure of Invention
The utility model aims to solve the technical problems that: after the gas turbine expands at high temperature, reasonable supporting and positioning cannot be provided for the radial direction of the gas turbine, the defects in the prior art are overcome, and a thermal expansion positioning structure of the gas turbine is provided.
The utility model relates to a thermal expansion positioning structure of a gas turbine, which is characterized in that the gas turbine is fixed on a box body through a positioning structure in a limiting manner, the positioning structure comprises a lifting lug structure, a ball bearing, a connecting clamp, a sliding rod and a positioning seat, the ball bearing and the connecting clamp are arranged in the lifting lug structure, the top of the sliding rod is fixed on the top of the lifting lug structure through the connecting clamp after penetrating through the ball bearing, and the bottom of the sliding rod is connected with the positioning seat in a sliding manner;
a gap exists between the bottom of the lifting lug structure and the top of the positioning seat;
the lifting lug structure can drive the sliding rod to move in the following direction: along the slide bar axis;
the positioning seat is provided with a mounting hole, and the depth of the mounting hole is M;
the sliding depth of the sliding rod is N;
wherein: n > =2m/3.
The lifting lug structure comprises a lifting lug and a sealing end cover, and the lifting lug and the sealing end cover are fixedly connected through a connecting piece.
The sliding rod is divided into a first shaft section, a second shaft section and a third shaft section;
the first shaft section is provided with a mounting groove, and a connecting clamp is sleeved outside the mounting groove;
the second shaft section is provided with a ball bearing which is used for compensating axial angle offset;
the third shaft section is connected with the positioning seat in a sliding way.
The positioning seat is provided with a fixing hole, and the positioning seat and the box body are fixed through the fixing hole.
The lifting lug structure and the gas turbine are fixed through welding.
Compared with the prior art, the utility model has the beneficial effects that:
the gas turbine is limited and fixed on the box body through the positioning structure and used for compensating the expansion amount of the gas turbine, wherein a ball bearing and a connecting clamp are arranged in a lifting lug structure in the positioning structure, the lifting lug structure is fixed on the top of a vertical sliding rod, the bottom of the sliding rod is slidably connected in a mounting hole, after the gas turbine is heated and expanded, the lifting lug structure is driven to move along the axis direction of the sliding rod, the radial compensation of the gas turbine after expansion is realized, the ball bearing in the lifting lug mechanism is used for compensating the clearance of the gas turbine along the axis, which exists between the bottom of the lifting lug structure and the top of the positioning seat, the expansion amount of the gas turbine after expansion is provided, and the damage of the gas turbine is avoided; the high-temperature positioning structure of the gas turbine designed by the utility model has simple structure and easy installation, can meet the positioning requirement of the gas turbine working in a high-temperature environment, and compensates the thermal expansion of the gas turbine due to high-temperature working.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a schematic diagram of radial compensation of an embodiment of the present utility model;
FIG. 3 is a front view of the slide bar;
FIG. 4 is a full cross-sectional view of the positioning seat;
in the figure: 1. a gas turbine; 2. a positioning structure; 3. a case;
1.1, a lifting lug structure; 1.2, ball bearings; 1.3, a connection card; 1.4, a sliding rod; 1.5, a positioning seat;
1.1.1, lifting lugs; 1.1.2, sealing end caps; 1.1.3, connecting piece;
1.4.1, a first shaft section; 1.4.2, a second shaft section; 1.4.3, third shaft section;
1.5.1, mounting holes;
Detailed Description
Example 1
As shown in fig. 1 to 4, in the thermal expansion positioning structure of the gas turbine, the gas turbine 1 is limited and fixed on a box 3 through a positioning structure 2, the positioning structure 2 comprises a lifting lug structure 1.1, a ball bearing 1.2, a connecting card 1.3, a sliding rod 1.4 and a positioning seat 1.5, the ball bearing 1.2 and the connecting card 1.3 are arranged in the lifting lug structure 1.1, the top of the sliding rod 1.4 penetrates through the ball bearing 1.2 and then is fixed on the top of the lifting lug structure 1.1 through the connecting card 1.3, and the bottom of the sliding rod 1.4 is connected with the positioning seat 1.5 in a sliding manner; the gas turbine 1 is limited and fixed in the box 3 through the locating structure 2 and is used for compensating the expansion amount of the gas turbine 1, wherein a ball bearing 1.2 and a connecting clamp 1.3 are arranged in a lifting lug structure 1.1 in the locating structure 2, the top of a vertical sliding rod 1.4 is fixed on the lifting lug structure 1.1, the bottom of the sliding rod 1.4 is slidably connected in a mounting hole 1.5.1, after the gas turbine 1 is heated and expanded, the lifting lug structure 1.1 is driven to move along the axis direction of the sliding rod 1.4, the surfaces of the sliding rod 1.4 and the mounting hole 1.5.1 are smooth, the normal operation of the gas turbine 1 cannot be influenced in the sliding process, the radial compensation of the gas turbine 1 after expansion is realized, the ball bearing 1.2 in the lifting lug structure 1.1 is used for compensating the expansion and expansion amount of the gas turbine 1 along the axis, the expansion amount of the gas turbine 1 after expansion is provided through setting a gap between the bottom of the lifting lug structure 1.1 and the top of the locating seat 1.5, and the damage of the gas turbine 1 is avoided.
Gaps exist between the bottom of the lifting lug structure 1.1 and the top of the positioning seat 1.5, and the gaps are used for compensating radial displacement of the steam turbine 1 in the thermal expansion process;
the lifting lug structure 1.1 can drive the sliding rod 1.4 to move in the following direction: along the axis of the sliding rod 1.4;
the middle of the positioning seat 1.5 is provided with a mounting hole 1.5.1, the positioning seat 1.5 is fixed on the box body 3 through a bolt, and the depth of the mounting hole 1.5.1 is M;
the sliding depth of the sliding rod 1.4 is N;
wherein: n > =2m/3, ensuring that the thermal expansion of the steam turbine 1 does not damage the box 3 and the lug structure 1.1.
The lifting lug structure 1.1 comprises a lifting lug 1.1.1 and a sealing end cover 1.1.2, and the lifting lug 1.1.1 and the sealing end cover 1.1.2 are fixedly connected through a connecting piece 1.1.3.
The sliding rod 1.4 is divided into a first shaft section 1.4.1, a second shaft section 1.4.2 and a third shaft section 1.4.3;
the first shaft section 1.4.1 is provided with a mounting groove 1.4.1.1, the mounting groove 1.4.1 is sleeved with a connecting clamp 1.3, and the sliding rod 1.4 is fixed at the top in the lifting lug structure 1.1 through the connecting clamp 1.3, so that the positioning structure 2 and the box body 3 are not damaged in the thermal expansion process of the gas turbine 1;
the second shaft section 1.4.2 is provided with a ball bearing 1.2, and the ball bearing 1.2 is used for compensating axial angle offset;
the third shaft section 1.4.3 is slidingly connected to the positioning seat 1.5.
The positioning seat 1.5 is provided with a fixing hole 1.5.2, and the positioning seat 1.5 is fixedly connected with the box body 3 through the fixing hole 1.5.2.
The lifting lug structure 1.1 and the gas turbine 1 are fixed through welding, so that the stability of support in the thermal expansion process of the gas turbine 1 can be ensured.
Working process or working principle:
when the gas turbine 1 thermally expands, the lifting lug structure 1.1 welded on the surface of the gas turbine can drive the sliding rod 1.4, the sliding rod 1.4 moves in the positioning seat 1.5 along the axial direction of the sliding rod for compensating the radial expansion amount of the gas turbine 1, the mounting structure in the lifting lug structure 1.1 is a ball bearing 1.2 and a connecting clamp 1.3, and the ball bearing 1.2 is used for compensating the angle deviation of the sliding rod 1.4 after moving along the axial direction, so that the radial position compensation and the axial positioning of the gas turbine 1 in the thermal expansion process are realized.
The description of the directions and the relative positional relationships of the structures, such as the description of the front, back, left, right, up and down, in the present utility model does not limit the present utility model, but is merely for convenience of description.
Claims (5)
1. The utility model provides a gas turbine thermal expansion location structure, gas turbine (1) is fixed in box (3) through location structure (2) spacing, a serial communication port, location structure (2) include lug structure (1.1), ball bearing (1.2), link card (1.3), slide bar (1.4) and positioning seat (1.5), lug structure (1.1) inside is equipped with ball bearing (1.2) and link card (1.3), be fixed in lug structure (1.1) top through link card (1.3) after ball bearing (1.2) are run through at slide bar (1.4) top, slide bar (1.4) bottom sliding connection is in positioning seat (1.5);
a gap exists between the bottom of the lifting lug structure (1.1) and the top of the positioning seat (1.5);
the lifting lug structure (1.1) can drive the sliding rod (1.4) to move in the following direction: along the axis of the sliding rod (1.4);
the positioning seat (1.5) is provided with a mounting hole (1.5.1), and the depth of the mounting hole (1.5.1) is M;
the sliding depth of the sliding rod (1.4) is N;
wherein: n > =2m/3.
2. The gas turbine thermal expansion positioning structure according to claim 1, wherein the lifting lug structure (1.1) comprises a lifting lug (1.1.1) and a sealing end cover (1.1.2), and the lifting lug (1.1.1) and the sealing end cover (1.1.2) are fixedly connected through a connecting piece (1.1.3).
3. The gas turbine thermal expansion positioning structure according to claim 2, wherein the sliding rod (1.4) comprises a first shaft section (1.4.1), a second shaft section (1.4.2) and a third shaft section (1.4.3) connected in sequence;
the first shaft section (1.4.1) is provided with a mounting groove (1.4.1.1), and a connecting card (1.3) is sleeved outside the mounting groove (1.4.1.1);
the second shaft section (1.4.2) is provided with a ball bearing (1.2), and the ball bearing (1.2) is used for compensating axial angle offset;
the third shaft section (1.4.3) is connected with the positioning seat (1.5) in a sliding way.
4. A gas turbine thermal expansion positioning structure according to any one of claims 1-3, characterized in that the positioning seat (1.5) is provided with a fixing hole (1.5.2), and that the positioning seat (1.5) and the casing (3) are fixed by means of the fixing hole (1.5.2).
5. The gas turbine thermal expansion positioning structure according to claim 4, wherein the lug structure (1.1) and the gas turbine (1) are fixed by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321555002.8U CN220302220U (en) | 2023-06-17 | 2023-06-17 | Thermal expansion positioning structure of gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321555002.8U CN220302220U (en) | 2023-06-17 | 2023-06-17 | Thermal expansion positioning structure of gas turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220302220U true CN220302220U (en) | 2024-01-05 |
Family
ID=89375178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321555002.8U Active CN220302220U (en) | 2023-06-17 | 2023-06-17 | Thermal expansion positioning structure of gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220302220U (en) |
-
2023
- 2023-06-17 CN CN202321555002.8U patent/CN220302220U/en active Active
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