Anti-falling assembly for disassembling and assembling sealing tile chamber of generator
By using an anti-detachment component, the lower half of the sealing tile chamber and the lower half of the bearing can be rotated around the stator shaft simultaneously, which solves the problem of low efficiency in disassembling and assembling the sealing tile chamber, improves the operational reliability and maintenance efficiency of the generator, and avoids the risk of scratches and collisions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING DATANG INTERNATIONAL SHENDONG THERMAL POWER CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-05-01
AI Technical Summary
In the existing technology, the disassembly and assembly efficiency of the generator sealing tile chamber is low, and during the disassembly process, the lower half of the sealing tile chamber is prone to tilting due to the lack of inner ring support, which may cause scratches to the stator shaft or sealing strip, affecting the reliability and maintenance efficiency of the unit.
An anti-detachment component was designed, including a connector and an abutment. The connector connects the lower half-sealing chamber and the lower half-bearing, and the abutment is slidably connected to the outer circumference of the stator shaft, allowing the lower half-sealing chamber and the lower half-bearing to rotate around the stator shaft simultaneously. The roller assembly reduces friction and provides stable support to prevent tilting.
It improves the efficiency of disassembly and assembly of the sealing tile chamber, avoids scratching the stator shaft and sealing strip, ensures the reliability of generator operation, shortens maintenance time, and has a simple structure that is easy to install.
Smart Images

Figure CN224191807U_ABST
Abstract
Description
An anti-detachment component for the disassembly and assembly of generator sealing tile chambers Technical Field
[0001] This utility model relates to the field of generator disassembly and assembly tools, and in particular to an anti-detachment component for disassembling and assembling generator sealing tile chambers. Background Technology
[0002] In modern power production, the generator sealing tile chamber is a key component that ensures the safe and stable operation of the generator. The quality and efficiency of its installation and disassembly directly affect the reliability and maintenance cycle of the unit.
[0003] In existing technologies, due to relative sliding between the lower bearing and the lower sealing tile chamber, the disassembly and assembly of the sealing tile chamber is typically performed using specialized tools and a hand-operated hoist. Generally, the lower bearing is removed first, followed by the lower sealing tile chamber. Because of the stator shaft support, to avoid interference, the lower bearing must be rotated upwards before disassembly. After the lower bearing is removed, the lower sealing tile chamber is rotated upwards again. At this point, the lower sealing tile chamber, lacking inner ring support and effective restraint, is highly susceptible to tilting under its own weight and external operating forces, potentially scraping against the generator stator shaft or sealing strips. Furthermore, the separate disassembly of the lower bearing and lower sealing tile chamber is inefficient.
[0004] Therefore, there is an urgent need for an anti-detachment component for the disassembly and assembly of generator sealing tile chambers to improve the efficiency of disassembly and assembly. Summary of the Invention
[0005] (a) Technical problems to be solved
[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an anti-detachment component for the disassembly and assembly of generator sealing tile chambers, which solves the technical problem of low disassembly and assembly efficiency of the lower sealing tile chamber.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, the main technical solutions adopted by this utility model include:
[0009] This utility model embodiment provides an anti-detachment component for disassembling and assembling generator sealing tile chambers. The generator sealing tile chamber includes an upper half sealing tile chamber and a lower half sealing tile chamber arranged vertically. The generator bearing includes an upper half bearing and a lower half bearing arranged vertically. The upper half bearing is located in the inner ring of the upper half sealing tile chamber, and the lower half bearing is located in the inner ring of the lower half sealing tile chamber. The anti-detachment component includes a connecting member and an abutment member connected to each other. The distal end of the abutment member can be slidably connected to the outer periphery of the generator stator shaft. The connecting member can connect the radial end faces of the lower half sealing tile chamber and the lower half bearing so that the lower half sealing tile chamber and the lower half bearing can rotate simultaneously around the stator shaft.
[0010] Preferably, the abutting member includes a connecting unit and an abutting unit; the connecting unit is connected to the far end of the connecting member, and the far end of the abutting unit is configured as an arc-shaped surface that matches the stator shaft; when the connecting member connects the lower half-sealing chamber and the lower half-bearing, the arc-shaped surface of the abutting unit abuts against the outer periphery of the stator shaft.
[0011] Preferably, the abutting unit includes an abutting plate and multiple sets of roller assemblies; the abutting plate is connected to the connecting unit, and the multiple sets of roller assemblies are spaced apart at the far end of the abutting plate, and the rolling surface of the roller assemblies is in rolling connection with the stator shaft; the rolling surface of the multiple sets of roller assemblies forms an arc-shaped surface.
[0012] Preferably, the roller assembly includes a connecting shaft disposed on the abutment plate and rollers respectively disposed on both sides of the connecting shaft; the rolling surface of the rollers abuts against the outer periphery of the stator shaft.
[0013] Preferably, the roller is made of rubber.
[0014] Preferably, it includes three sets of roller assemblies.
[0015] Preferably, the connector is a connecting plate, with one part of the connecting plate connected to the lower half of the sealing tile chamber and the other part of the connecting plate connected to the lower half of the bearing.
[0016] Preferably, the connecting plate is provided with at least two first connecting holes and at least two second connecting holes; the lower half of the sealing tile chamber is connected to the first connecting hole of the connecting plate by a first connecting bolt; the lower half of the bearing is connected to the second connecting hole of the connecting plate by a second connecting bolt.
[0017] (III) Beneficial Effects
[0018] The beneficial effects of this utility model are:
[0019] This utility model discloses an anti-detachment component for disassembling and assembling generator sealing tile chambers. The anti-detachment component includes a connecting member and an abutment member. The distal end of the abutment member can be slidably connected to the outer circumference of the generator stator shaft. The connecting member can connect the radial end faces of the lower half sealing tile chamber and the lower half bearing, allowing the lower half sealing tile chamber and the lower half bearing to rotate simultaneously around the stator shaft. This effectively avoids the tilting of the lower half sealing tile chamber due to its own weight and external operating forces when lacking inner ring support, as is common in the prior art. This prevents scraping or collision with the stator shaft or sealing strip, ensuring the safety of the generator stator shaft and sealing strip, and improving the reliability of generator operation.
[0020] Meanwhile, since the lower half of the sealing tile chamber and the lower half of the bearing can rotate simultaneously around the stator shaft, there is no need to operate the lower half of the bearing and the lower half of the sealing tile chamber separately, reducing disassembly and assembly steps, effectively improving the efficiency of generator sealing tile chamber disassembly and assembly, and shortening unit maintenance time. Furthermore, this anti-detachment component has a simple structure and is easy to manufacture and install. Attached Figure Description
[0021] Figure 1 is a schematic diagram of the generator (with the upper bearing and upper sealing tile chamber removed);
[0022] Figure 2 is a structural schematic diagram of the generator (with the lower bearing and lower sealing tile chamber flipped upwards);
[0023] Figure 3 is a schematic diagram of the anti-detachment component;
[0024] Figure 4 is an exploded view of the anti-detachment component.
[0025] [Explanation of Labels in the Attached Image]
[0026] 1: Lower half bearing;
[0027] 2: Lower semi-sealed tile chamber;
[0028] 3: Stator shaft;
[0029] 4: Stator shaft support;
[0030] 5: Anti-detachment component; 51: Connector; 511: First connecting hole; 512: Second connecting hole; 52: Abutment; 521: Connecting unit; 522: Abutment plate; 523: Roller assembly; 5231: Connecting shaft; 5232: Roller. Detailed Implementation
[0031] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0032] In this embodiment, the generator's sealing tile chamber includes an upper sealing tile chamber and a lower sealing tile chamber 2 arranged vertically. The generator's bearing includes an upper bearing and a lower bearing 1 arranged vertically. The upper bearing is located in the inner ring of the upper sealing tile chamber, and the lower bearing 1 is located in the inner ring of the lower sealing tile chamber 2. In practical applications, to prevent the stator shaft 3 from rotating, it needs to be supported by a stator shaft support 4.
[0033] As shown in Figures 3 and 4, the anti-detachment component 5 includes a connecting member 51 and an abutment member 52. As shown in Figures 1 and 2, the distal end of the abutment member 52 can be slidably connected to the outer periphery of the generator stator shaft 3. The connecting member 51 can connect the radial end faces of the lower half-sealing chamber 2 and the lower half-bearing 1, allowing the lower half-bearing chamber 1 and the lower half-bearing 1 to rotate simultaneously around the stator shaft 3. This effectively avoids the tilting of the lower half-sealing chamber 2 due to its own weight and external operating forces when lacking inner ring support, thus preventing scratching of the stator shaft 3 or the sealing strip, ensuring the safety of the generator stator shaft 3 and the sealing strip, and improving the reliability of generator operation. Simultaneously, since the lower half-sealing chamber 2 and the lower half-bearing 1 can rotate simultaneously around the stator shaft 3, there is no need to operate the lower half-bearing 1 and the lower half-sealing chamber 2 separately, reducing disassembly and assembly steps, effectively improving the efficiency of generator sealing chamber disassembly and assembly, and shortening unit maintenance time. Furthermore, the anti-detachment component 5 has a simple structure and is easy to manufacture and install.
[0034] It should be noted that the far end of the abutment 52 is the end closest to the stator shaft 3.
[0035] As shown in Figure 3, the connector 51 is a connecting plate. Part of the connecting plate connects to the lower half-sealing chamber 2, and the other part connects to the lower half-bearing 1. The connecting plate has at least two first connecting holes 511 and at least two second connecting holes 512. The lower half-sealing chamber 2 is connected to the first connecting holes 511 of the connecting plate via first connecting bolts, and the lower half-bearing 1 is connected to the second connecting holes 512 of the connecting plate via second connecting bolts. The design of multiple connecting holes provides multiple connection points, making the connection between the connecting plate and the lower half-sealing chamber 2 and the lower half-bearing 1 more robust and reliable. This effectively distributes the stress on the connection points, preventing loosening or breakage due to excessive stress at a single point.
[0036] As shown in Figure 3, the abutment member 52 includes a connecting unit 521 and an abutment unit. The connecting unit 521 is connected to the distal end of the connecting member 51. The distal end of the abutment unit is configured as an arc-shaped surface that matches the stator shaft 3. When the connecting member 51 connects the lower half bearing 1 housing and the lower half bearing 1, the arc-shaped surface of the abutment unit abuts against the outer periphery of the stator shaft 3. This provides a stable support point for the anti-detachment assembly 5, ensuring that the lower half bearing 1 and the lower half sealing housing 2 are subjected to uniform force during the flipping process, avoiding shaking. At the same time, the arc-shaped surface conforms to the stator shaft 3, which can effectively disperse the pressure generated during flipping and prevent wear on the surface of the stator shaft 3. In practical applications, the connecting unit 521 and the connecting member 51 can be integrally formed plates.
[0037] As shown in Figure 3, the abutting unit includes an abutting plate 522 and multiple sets of roller assemblies 523. In this embodiment, three sets of roller assemblies 523 are provided. The abutting plate 522 is connected to the connecting unit 521. The three sets of roller assemblies 523 are spaced apart at the far end of the abutting plate 522, and the rolling surfaces of the roller assemblies 523 are in rolling contact with the stator shaft 3, forming an arc-shaped surface. The roller assemblies 523 convert sliding friction into rolling friction, significantly reducing the friction between the anti-detachment component 5 and the stator shaft 3. This makes the lower bearing 1 and the lower sealing chamber 2 rotate more smoothly around the stator shaft 3, reducing operating resistance and improving disassembly and assembly efficiency. Simultaneously, the arrangement of multiple sets of roller assemblies 523 can distribute the force, avoiding excessive pressure at a single point from damaging the surface of the stator shaft 3, further protecting the stator shaft 3 and extending its service life.
[0038] As shown in Figure 4, the roller assembly 523 includes a connecting shaft 5231 and two rollers 5232. The connecting shaft 5231 is mounted on the abutment plate 522, and the two rollers 5232 are respectively mounted on both sides of the connecting shaft 5231. The rolling surfaces of the rollers 5232 abut against the outer periphery of the stator shaft 3. The symmetrical design of the rollers 5232 in each group ensures that the roller assembly 523 is subjected to balanced forces when in contact with the stator shaft 3, avoiding the rollers 5232 from shifting or jamming due to uneven forces, and ensuring stable movement of the lower bearing 1 and the lower sealing chamber 2 during the rotation process.
[0039] The roller 5232 is made of rubber. Rubber has good elasticity and wear resistance. On the one hand, it can effectively buffer the impact force generated by collisions or vibrations during disassembly and assembly, reducing damage to the surface of the stator shaft 3 and protecting the integrity of the stator shaft 3. On the other hand, the rubber roller 5232 has appropriate friction with the stator shaft 3, ensuring stable rolling of the roller 5232 on the stator shaft 3 and preventing uncontrolled movement of the lower half-sealing chamber 2 and the lower half-bearing 1 due to insufficient friction, thereby further improving the safety and reliability of the disassembly and assembly operation. In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.
[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0041] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0042] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0043] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. An anti-detachment assembly for disassembling and assembling a generator sealing tile chamber, wherein the generator sealing tile chamber comprises an upper half sealing tile chamber and a lower half sealing tile chamber (2) arranged vertically, and the generator bearing comprises an upper half bearing and a lower half bearing (1) arranged vertically, wherein the upper half bearing is located in the inner ring of the upper half sealing tile chamber, and the lower half bearing (1) is located in the inner ring of the lower half sealing tile chamber (2), characterized in that, The anti-detachment component (5) includes a connecting member (51) and an abutment member (52) connected to each other; the distal end of the abutment member (52) can be slidably connected to the outer periphery of the stator shaft (3) of the generator; the connecting member (51) can connect the radial end faces of the lower half-sealing chamber (2) and the lower half-bearing (1) so that the lower half-sealing chamber (2) and the lower half-bearing (1) can rotate around the stator shaft (3) at the same time.
2. The anti-detachment assembly for disassembling and assembling generator sealing tile chambers as described in claim 1, characterized in that: The abutment (52) includes a connecting unit (521) and an abutment unit; the connecting unit (521) is connected to the far end of the connecting unit (51), and the far end of the abutment unit is configured as an arc-shaped surface that matches the stator shaft (3); when the connecting unit (51) connects the lower half-sealing chamber (2) and the lower half-bearing (1), the arc-shaped surface of the abutment unit abuts against the outer periphery of the stator shaft (3).
3. The anti-detachment assembly for disassembling and assembling generator sealing tile chambers as described in claim 2, characterized in that: The abutting unit includes an abutting plate (522) and multiple sets of roller assemblies (523); the abutting plate (522) is connected to the connecting unit (521), the multiple sets of roller assemblies (523) are spaced apart at the far end of the abutting plate (522), and the rolling surface of the roller assembly (523) is tactilely connected to the stator shaft (3); the rolling surface of the multiple sets of roller assemblies (523) forms the arc-shaped surface.
4. The anti-detachment assembly for disassembling and assembling generator sealing tile chambers as described in claim 3, characterized in that: The roller assembly (523) includes a connecting shaft (5231) disposed on the abutment plate (522) and rollers (5232) respectively disposed on both sides of the connecting shaft (5231); the rolling surface of the rollers (5232) abuts against the outer periphery of the stator shaft (3).
5. The anti-detachment assembly for disassembling and assembling generator sealing tile chambers as described in claim 4, characterized in that: The roller (5232) is made of rubber.
6. The anti-detachment assembly for disassembling and assembling generator sealing tile chambers as described in claim 4, characterized in that: Includes three sets of the roller assemblies (523).
7. The anti-detachment assembly for disassembling and assembling generator sealing tile chambers as described in claim 1, characterized in that: The connector (51) is a connecting plate, part of which is connected to the lower half-sealing tile chamber (2), and the other part of which is connected to the lower half-bearing (1).
8. The anti-detachment assembly for disassembling and assembling generator sealing tile chambers as described in claim 7, characterized in that: The connecting plate is provided with at least two first connecting holes (511) and at least two second connecting holes (512); the lower half sealing tile chamber (2) is connected to the first connecting hole (511) of the connecting plate by a first connecting bolt; the lower half bearing (1) is connected to the second connecting hole (512) of the connecting plate by a second connecting bolt.