A support structure for a power turbine

Abstract

This utility model relates to the technical field of engine component facilities, and specifically discloses a support structure for a power turbine. It includes a base, on which a power turbine is mounted. The turbine includes an exhaust volute and a load-bearing ring. Two support columns are fixedly mounted on the base, and the upper ends of the support columns are fixedly connected to the load-bearing ring via load-bearing pins. A positioning seat is also provided on the base, and the positioning seat is fixedly connected to the load-bearing ring via positioning pins. The positioning pins and load-bearing pins are located in the same plane. Two symmetrical support rods are provided at each end of the exhaust volute. A guide groove is provided on the base, and a guide plate matching the guide groove is provided at the lower end of the exhaust volute. This utility model uses the load-bearing pins and positioning pins as fixing points, allowing free expansion forward, backward, and in all directions along the power turbine axis. While ensuring effective support and fixation, it ensures that expansion in all directions will not generate thermal stress.

Description

Technical Field

[0001] This utility model relates to the field of engine component facilities technology, and in particular to a support structure for a power turbine. Background Technology

[0002] The power turbine is a high-temperature component. During high-temperature operation, it expands forward, backward, and circumferentially. Therefore, a support structure is needed to support and position it while ensuring the freedom of expansion in all directions. Current support structures are fixed at dead points, which can generate significant thermal stress during operation and damage components. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, this utility model provides a support structure for a power turbine that can provide effective support, ensure free expansion, and protect components.

[0004] This utility model is achieved through the following technical solution: A support structure for a power turbine includes a base, on which a power turbine is mounted. The turbine includes an exhaust volute and a load-bearing ring. The base has two support columns fixedly mounted on it, the upper ends of which are fixedly connected to the load-bearing ring via load-bearing pins. The base also has a positioning seat fixedly connected to the load-bearing ring via positioning pins, the positioning pins and the load-bearing pins being located in the same plane. The exhaust volute has two symmetrical support rods at each end, both ends of which can rotate forward and backward and left and right. The base has a guide groove, and the lower end of the exhaust volute has a guide plate matching the guide groove.

[0005] The two load-bearing pins are at the same height and are located on the same diameter.

[0006] There are two guide grooves.

[0007] The two side walls of the guide groove are respectively threaded with adjusting bolts.

[0008] The two support rods at each end are at the same height and are located on the same diameter of the exhaust volute.

[0009] The support rod includes an upper support section and a lower support section. The lower end of the upper support section and the upper end of the lower support section are respectively provided with threaded sections with positive and negative teeth, and are connected by a nut thread.

[0010] The base and the exhaust volute are respectively provided with hinge seats, and the hinge seats are provided with support auxiliary rods through the hinge shaft. One end of the support auxiliary rod is provided with a spherical groove, and the hinge shaft is provided with a frustum-shaped body, which is located in the spherical groove. The two auxiliary support rods are respectively threaded to the upper support section and the lower support section.

[0011] The two hinge axes are perpendicular to each other, one of which is parallel to the axis of the exhaust volute.

[0012] The beneficial effects of this utility model are: The support structure of this utility model uses load-bearing pins and positioning pins as fixed points, and can expand freely forward, backward, and in all directions along the power turbine axis. While ensuring effective support and fixation, it can ensure that expansion in all directions will not generate thermal stress. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 for Figure 1 Schematic diagram of a partial cross-section structure along the AA direction; Figure 3 for Figure 1 Schematic diagram of a partial cross-section structure along the BB direction; Figure 4 for Figure 2 A schematic diagram of a local cross-sectional structure along the CC direction; Figure 5 for Figure 1 A schematic diagram of the cross-sectional structure at point D; Figure 6 for Figure 2 A magnified structural diagram at point E in the middle.

[0014] In the diagram, 1 is the base, 2 is the load-bearing ring, 3 is the exhaust volute, 4 is the guide groove, 5 is the guide plate, 6 is the adjusting bolt, 7 is the support column, 8 is the load-bearing pin, 9 is the positioning seat, 10 is the positioning pin, 11 is the hinge seat, 12 is the hinge shaft, 13 is the support auxiliary rod, 14 is the spherical groove, 15 is the upper support section, 16 is the lower support section, 17 is the threaded section, 18 is the nut, and 19 is the spherical table-shaped body. Detailed Implementation

[0015] The attached figure shows a specific embodiment of this utility model.

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0018] like Figures 1 to 6 As shown, the support structure of this power turbine includes a base 1, on which the power turbine is mounted. The power turbine includes an exhaust volute 3 and a load-bearing ring 2.

[0019] Two support columns 7 are fixedly installed on the base 1. The upper end of the support column 7 has a through hole, and the bearing ring 2 has two through holes. The two through holes of the bearing ring 2 are preferably located on the same horizontal diameter, and the four through holes are at the same height. The bearing pins 8 are inserted into the through holes to fix the support column 7 and the bearing ring 2 together, so as to play a role in bearing and supporting the bearing ring 2.

[0020] There is also a positioning seat 9 on the base 1, and a positioning pin 10 is installed on the positioning seat 9. The positioning pin 10 passes through the load-bearing ring 2 and is located directly below the load-bearing ring 2. Both the positioning pin 10 and the load-bearing pin 8 are tightly connected to the load-bearing ring 2. The positioning pin 10 and the load-bearing ring 2 are located in the same plane and jointly support the load-bearing ring 2. At the same time, the intersection of this plane and the axis of the load-bearing ring 2 forms a fixed point, also called a dead point, which can only expand circumferentially during the expansion process.

[0021] Two support rods are installed at each end of the exhaust volute 3. The two support rods at each end are preferably of the same height and the connection point is located on the same diameter. The lower end of the support rod is installed on the base 1, and both ends of the support rod can rotate forward, backward, left and right. The support rod is preferably adjustable in length.

[0022] The preferred solution for rotating both ends of the support rod is: A hinge seat 11 is fixedly installed on the exhaust volute 3 and the base 1 respectively. A support auxiliary rod 13 is installed inside the hinge seat 11 through a hinge shaft 12. One end of the support auxiliary rod 13 is a spherical groove 14. The hinge shaft 12 is provided with... Figure 5 The spherical table-shaped body 19 shown is located in the spherical groove 14. There is a sufficient gap between the support auxiliary rod 13 and the hinge seat 11 to ensure that the support auxiliary rod 13 can rotate freely around the spherical table-shaped body 19. The spherical table-shaped body 19 can rotate around the hinge axis 12, but it is best that the spherical table-shaped body 19 is fixedly connected to the hinge axis 12.

[0023] The two hinge shafts 12 are preferably perpendicular, with one parallel to the axis of the exhaust volute 3 and the other perpendicular to the axis of the exhaust volute 3.

[0024] The preferred option for adjustable support rod length is: The support rod is divided into two ends: an upper support section 15 and a lower support section 16. The lower end of the upper support section 15 and the upper end of the lower support section 16 are both threaded sections 17, but the threads are opposite. The two threaded sections 17 are connected by a nut 18. The length of the support rod can be adjusted by rotating the nut 18.

[0025] The upper support section 15 and the lower support section 16 are threadedly connected to the two support auxiliary rods 13, respectively.

[0026] A guide groove 4 is installed on the base 1. Two guide grooves 4 can be installed. The length direction and the arrangement direction of the guide grooves 4 are parallel to the length direction of the exhaust volute 3 and are located directly below the exhaust volute 3. A guide plate 5 is fixedly installed at the lower end of the exhaust volute 3. The guide plate 5 is located in the wire guide groove and can slide in the wire guide groove.

[0027] An adjusting bolt 6 is threaded onto each of the two side walls of the guide groove 4 to adjust the position of the guide plate 5, thereby adjusting the position of the exhaust volute 3.

[0028] During the operation of the power turbine, the two load-bearing pins 8 and the positioning pin 10 together form a fixed point. When the exhaust volute 3 undergoes thermal expansion, it moves axially along the guide groove 4 through the guide plate 5. At the same time, the support rod tilts along the axial direction. When it expands in a direction perpendicular to the axial direction, the support rod tilts in a direction perpendicular to the axial direction. In this way, while ensuring effective support and fixation, it can be ensured that expansion in each direction will not generate thermal stress.

[0029] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0033] Except for the technical features described in the specification, all other technical features are known to those skilled in the art.

Claims

1. A support structure for a power turbine, comprising a base (1), on which a power turbine is mounted, the turbine comprising an exhaust volute (3) and a load-bearing ring (2), characterized in that, Two support columns (7) are fixed on the base (1). The upper end of the support column (7) is fixedly connected to the bearing ring (2) through the bearing pin (8). The base (1) is also provided with a positioning seat (9). The positioning seat (9) is fixedly connected to the bearing ring (2) through the positioning pin (10). The positioning pin (10) and the bearing pin (8) are located in the same vertical plane. Two symmetrical support rods are provided at both ends of the exhaust volute (3). Both ends of the support rods can rotate back and forth and left and right. The base (1) is provided with a guide groove (4). The lower end of the exhaust volute (3) is provided with a guide plate (5) that matches the guide groove (4).

2. The support structure for the power turbine according to claim 1, characterized in that, The two load-bearing pins (8) are at the same height and are located on the same diameter.

3. The support structure for the power turbine according to claim 1, characterized in that, There are two guide grooves (4).

4. The support structure for the power turbine according to claim 3, characterized in that, The two side walls of the guide groove (4) are respectively threaded with adjusting bolts (6).

5. The support structure for the power turbine according to claim 1, characterized in that, The two support rods at each end are at the same height and are located on the same diameter of the exhaust volute (3).

6. The support structure for the power turbine according to claim 5, characterized in that, The support rod includes an upper support section (15) and a lower support section (16). The lower end of the upper support section (15) and the upper end of the lower support section (16) are respectively provided with threaded sections (17) with positive and negative teeth, and are connected by a nut (18).

7. The support structure for the power turbine according to claim 6, characterized in that, The base (1) and the exhaust volute (3) are respectively provided with hinge seats (11). The hinge seats (11) are provided with support auxiliary rods (13) through the hinge shaft (12). One end of the support auxiliary rod (13) is provided with a spherical groove (14). The hinge shaft (12) is provided with a frustum-shaped body (19). The frustum-shaped body (19) is located in the spherical groove (14). The two support auxiliary rods (13) are threadedly connected to the upper support section (15) and the lower support section (16) respectively.

8. The support structure for the power turbine according to claim 7, characterized in that, The two hinge shafts (12) are perpendicular to each other, one of which is parallel to the axis of the exhaust volute (3).

Images