Tilting pad bearing forge piece of steam turbine

Abstract

The utility model discloses a tilting pad bearing forge piece of a steam turbine, which relates to the technical field of steam turbine accessories and comprises a shell, a plurality of clamping grooves are arranged on the inner side of the shell, a support pad is movably mounted on the inner side of the shell through the clamping grooves, and a casting ring is movably mounted on the inner side of the shell through the support pad. An assembling groove is formed in the outer side of the casting ring, a supporting pad is clamped on the inner side of the assembling groove, a wear-resisting layer is installed on the inner side of the casting ring, and bearing balls are installed on the inner side of the wear-resisting layer. The casting ring is installed, the circular groove is formed in the inner side of the casting ring, the wear-resisting layer and the bearing balls are limited through the circular groove in the inner side of the casting ring, a user can conveniently and accurately install the wear-resisting layer and the bearing balls, the limiting grooves are formed in the outer sides of the tile blocks, and the outer sides of the tile blocks are movably connected with the wear-resisting layer and the bearing balls through the limiting grooves. And a user can conveniently and accurately mount the casting ring and the tile.

Description

Technical Field

[0001] This utility model relates to the technical field of steam turbine parts, specifically a forged tilting pad bearing for steam turbines. Background Technology

[0002] During rotation, the tilting pads of a tilting pad bearing can oscillate slightly according to changes in speed and load, which can reduce oil film oscillation.

[0003] Patent document CN216554988U discloses a bearing forging with an anti-deformation structure, which discloses "a bearing forging with an anti-deformation structure, including a shell, a fixing component and a connecting component. The fixing component is installed inside the shell, a reinforcing rod is installed on the front of the reinforcing steel ring, a rotating shaft sleeve is installed on the inner side of the reinforcing steel ring, a material layer is installed on the outer side of the shell, the material layer includes an anti-corrosion layer, a rubber layer and an adhesive layer, a rubber layer is provided at the bottom of the anti-corrosion layer, a connecting component is installed on the front of the shell, a sliding plate is installed inside the mounting shell, and a clamping plate is installed on one side inside the mounting shell";

[0004] The existing tilting pad bearing forgings lack internal limiting structures, making it inconvenient for users to accurately install bearing parts. Utility Model Content

[0005] The purpose of this utility model is to provide a turbine tilting pad bearing forging to solve the technical problem mentioned in the background art of the lack of a liquid pressure stabilizing structure inside the pipeline flow velocity control structure, which makes it inconvenient to carry out filling structure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a turbine tilting pad bearing forging, comprising: a housing, wherein a plurality of slots are provided on the inner side of the housing, a support pad is movably installed on the inner side of the housing through the slots, a casting ring is movably installed on the inner side of the housing through the support pad, an assembly groove is provided on the outer side of the casting ring, the support pad is engaged with the inner side of the assembly groove, a wear-resistant layer is installed on the inner side of the casting ring, a bearing ball is installed on the inner side of the wear-resistant layer, a support assembly is movably installed on the inner side of the casting ring, the support assembly includes a plurality of pads installed on the inner side of the casting ring, a limiting groove is provided on the outer wall of the pads, the outer side of the pads is engaged with the bearing ball through the limiting groove, and a plurality of grooves are provided at both ends of the pads.

[0007] Preferably, a spacer assembly is movably mounted on one end of the tile via a groove.

[0008] Preferably, the spacer assembly includes an assembly block movably mounted inside the groove, with a spacer attached to one end of the assembly block.

[0009] Preferably, the end of the spacer away from the assembly block has an installation groove.

[0010] Preferably, the other set of spacers has an mounting block installed at the end furthest from the assembly block.

[0011] Preferably, the mounting groove of the partition block is fitted into the mounting block of another set of partition blocks to achieve a ring-shaped connection of the four sets of tiles.

[0012] Preferably, a sliding ring is movably installed on the inner side of the tile, an assembly ring is installed on the inner side of the sliding ring, and limit rings are installed at the top and bottom of the assembly ring, with the limit rings located above and below the tile.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model features a cast ring with a circular groove on its inner side. The circular groove on the inner side of the cast ring limits the wear-resistant layer and bearing ball, facilitating precise installation of the wear-resistant layer and bearing ball by the user. A limiting groove is provided on the outer side of the tile, which is movably connected to the wear-resistant layer and bearing ball by the limiting groove, facilitating precise installation of the cast ring and tile by the user.

[0015] 2. This utility model features a spacer assembly installed between two sets of tiles. The spacer assembly consists of an assembly block and spacers. The assembly block is inserted into the inner side of the groove, facilitating precise installation of the spacers and tiles by the user. The spacers have mounting grooves, and mounting blocks are installed on the other set of spacers. The circular assembly of the four sets of tiles allows the mounting grooves of the spacers to fit into the mounting blocks of the other set of spacers, facilitating precise installation of the tiles by the user. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the tile structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the assembly ring structure of this utility model.

[0020] In the diagram: 1. Outer shell; 2. Support pad; 3. Casting ring; 4. Wear-resistant layer; 5. Bearing ball; 6. Bearing block; 7. Groove; 8. Assembly block; 9. Spacer; 10. Mounting groove; 11. Mounting block; 12. Sliding ring; 13. Assembly ring; 14. Limiting ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 A forged tilting pad bearing for a steam turbine includes: a housing 1, with several slots on the inner side of the housing 1, a support pad 2 movably mounted on the inner side of the housing 1 through the slots, a casting ring 3 movably mounted on the inner side of the housing 1 through the support pad 2, an assembly groove on the outer side of the casting ring 3, the support pad 2 being engaged with the inner side of the assembly groove, a wear-resistant layer 4 installed on the inner side of the casting ring 3, a bearing ball 5 installed on the inner side of the wear-resistant layer 4, a support assembly movably mounted on the inner side of the casting ring 3, the support assembly including several pads 6 installed on the inner side of the casting ring 3, a limiting groove on the outer wall of the pads 6, the outer side of the pads 6 engaging with the bearing ball 5 through the limiting groove, and several grooves 7 at both ends of the pads 6;

[0025] A slot is provided on the inner side of the outer shell 1, through which the support pad 2 is precisely installed. An assembly slot is provided on the outer side of the casting ring 3, which connects with the support pad 2, making it convenient for the user to accurately install the casting ring 3 and the outer shell 1, ensuring the stability of the structure of the casting ring 3 and the outer shell 1. A circular groove is provided on the inner side of the casting ring 3, through which the wear-resistant layer 4 and the bearing ball 5 are limited, making it convenient for the user to accurately install the wear-resistant layer 4 and the bearing ball 5.

[0026] A limiting groove is provided on the outer side of the tile 6. The outer side of the tile 6 is movably connected to the wear-resistant layer 4 and the bearing ball 5 through the limiting groove, which facilitates the user to accurately install the casting ring 3 and the tile 6. Several grooves 7 are provided at both ends of the tile 6.

[0027] One end of the tile 6 is movably mounted with a spacer assembly via a groove 7. The spacer assembly includes an assembly block 8 movably mounted inside the groove 7. One end of the assembly block 8 is mounted with a spacer block 9. The end of the spacer block 9 away from the assembly block 8 has an installation groove 10. Another set of spacers 9 has an installation block 11 mounted at the end away from the assembly block 8. The installation groove 10 of the spacer block 9 and the installation block 11 of the other set of spacers 9 fit together to achieve a ring-shaped connection of four sets of tiles 6.

[0028] One end of the tile 6 is movably connected to the spacer assembly via a groove. The spacer assembly is installed between two sets of tiles 6. The spacer assembly consists of an assembly block 8 and a spacer block 9. The assembly block 8 is inserted into the inside of the groove 7, which makes it convenient for the user to accurately install the spacer block 9 and the tile 6. The spacer block 9 has an installation groove 10. The other set of spacer blocks 9 is equipped with an installation block 11. The four sets of tiles 6 are assembled in a ring, and the installation groove 10 of the spacer block 9 and the installation block 11 of the other set of spacer blocks 9 are interlocked, which makes it convenient for the user to accurately install the tile 6.

[0029] A sliding ring 12 is movably installed on the inner side of the tile 6, and an assembly ring 13 is installed on the inner side of the sliding ring 12. A limiting ring 14 is installed at the top and bottom of the assembly ring 13, and the limiting ring 14 is located above and below the tile 6.

[0030] The four sets of tile blocks 6 provide limiting support to the inner sliding rings 12. The sliding rings 12 support the inner assembly rings 13. The assembly rings 13 rotate inside the sliding rings 12. The assembly rings 13 fix the top and bottom limiting rings 14. The assembly rings 13 are connected to the steam turbine to ensure the smooth operation of the steam turbine.

[0031] Working principle: A slot is provided on the inner side of the outer shell 1, through which the support pad 2 is precisely installed. An assembly groove is provided on the outer side of the casting ring 3, which mates with the support pad 2, facilitating precise installation of the casting ring 3 and the outer shell 1 by the user, ensuring the stability of the structure of the casting ring 3 and the outer shell 1. A circular groove is provided on the inner side of the casting ring 3, which limits the wear-resistant layer 4 and the bearing ball 5, facilitating precise installation of the wear-resistant layer 4 and the bearing ball 5 by the user. A limiting groove is provided on the outer side of the pad 6, which is movably connected to the wear-resistant layer 4 and the bearing ball 5 by the limiting groove, facilitating precise installation of the casting ring 3 and the pad 6 by the user. Several grooves 7 are provided at both ends of the pad 6, and one end of the pad 6 connects with the spacer assembly through the groove. The components are connected in a movable manner. The spacer assembly is installed between two sets of tiles 6. The spacer assembly consists of an assembly block 8 and a spacer block 9. The assembly block 8 is inserted into the inner side of the groove 7, which facilitates the user to accurately install the spacer block 9 and the tile 6. The spacer block 9 has an installation groove 10. The other set of spacer blocks 9 is equipped with an installation block 11. The four sets of tiles 6 are assembled in a ring, and the installation groove 10 of the spacer block 9 and the installation block 11 of the other set of spacer blocks 9 are interlocked, which facilitates the user to accurately install the tile 6. The four sets of tiles 6 limit and support the inner sliding ring 12. The sliding ring 12 supports the inner assembly ring 13. The assembly ring 13 rotates inside the sliding ring 12. The assembly ring 13 is fixed to the top and bottom limit rings 14. The assembly ring 13 is connected to the steam turbine to ensure the smooth operation of the steam turbine.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A forging for a tilting pad bearing for a steam turbine, characterized in that, include: The outer shell (1) has several slots on its inner side. A support pad (2) is movably installed on the inner side of the outer shell (1) through the slots. A casting ring (3) is movably installed on the inner side of the outer shell (1) through the support pad (2). An assembly groove is opened on the outer side of the casting ring (3). The support pad (2) is locked on the inner side of the assembly groove. A wear-resistant layer (4) is installed on the inner side of the casting ring (3). A bearing ball (5) is installed on the inner side of the wear-resistant layer (4). A support assembly is movably installed on the inner side of the casting ring (3). The support assembly includes several tiles (6) installed on the inner side of the casting ring (3). A limiting groove is opened on the outer wall of the tile (6). The outer side of the tile (6) is connected to the bearing ball (5) through the limiting groove. Several grooves (7) are opened at both ends of the tile (6).

2. The turbine tilting pad bearing forging according to claim 1, characterized in that: One end of the tile (6) is movably fitted with a spacer assembly via a groove (7).

3. A turbine tilting pad bearing forging according to claim 2, characterized in that: The spacer assembly includes an assembly block (8) movably mounted inside the groove (7), with a spacer (9) mounted at one end of the assembly block (8).

4. A turbine tilting pad bearing forging according to claim 3, characterized in that: The partition block (9) has an installation groove (10) at the end away from the assembly block (8).

5. A turbine tilting pad bearing forging according to claim 4, characterized in that: Another set of partitions (9) has an mounting block (11) installed at the end away from the assembly block (8).

6. A turbine tilting pad bearing forging according to claim 5, characterized in that: The mounting groove (10) of the partition (9) and the mounting block (11) of another set of partitions (9) fit together to achieve the annular connection of the four sets of tiles (6).

7. A turbine tilting pad bearing forging according to claim 6, characterized in that: A sliding ring (12) is movably installed on the inner side of the tile (6), and an assembly ring (13) is installed on the inner side of the sliding ring (12). Limiting rings (14) are installed at the top and bottom of the assembly ring (13), and the limiting rings (14) are located above and below the tile (6).

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