Vibration-isolation high-strength generator stator frame

Abstract

The utility model relates to the technical field of generator stator bases, in particular to a vibration-isolation high-strength generator stator base. A stator base is in a hollow cylinder shape, and a stator iron core is embedded in the stator base. The stator base comprises an excitation end base, a middle end base and a steam end base; the excitation end engine base, the middle end engine base and the steam end engine base are sequentially arranged and fixedly welded; a vibration isolation spring assembly is welded to the inner wall of the stator base. The vibration isolation spring assemblies are arranged on the two sides and the bottom of the inner wall and are arranged in the axial direction of the stator base. The vibration isolation spring assembly is provided with a fixing screw hole, and the vibration isolation spring assembly is connected between the stator base and the stator iron core through the fixing screw hole. According to the utility model, the vibration isolation spring assembly is fixed between the stator iron core and the stator base by welding and screwing bolts, and overall assembly is carried out after segmented welding, so that the welding deformation can be reduced, the good vibration isolation effect and mechanical property are achieved, and the safety and reliability of generator operation are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of generator stator bases, in particular to a vibration-isolating high-strength generator stator base. Background Art

[0002] When the generator rotor rotates at high speed, it generates a large magnetic field, causing the stator core to vibrate. To reduce the transmission of stator core vibration to the stator frame and foundation during operation, a vibration isolation assembly is installed between the stator core and the stator frame. Currently, bolts are commonly used to connect the stator frame, stator core, and vibration isolation assembly. However, the bolts are prone to loosening during long-term operation, which affects the vibration isolation performance of the stator and even the safety and reliability of the generator. To achieve a vibration reduction effect, some researchers have focused their vibration reduction design on optimizing the suppression of the electromagnetic force inside the generator. However, suppressing the air gap magnetic flux amplitude may reduce the generator power density and reduce the vibration reduction effect. Summary of the Invention

[0003] In response to the deficiencies in the prior art, the utility model provides a vibration-isolating high-strength generator stator base, in which a vibration isolation spring assembly is doubly fixed between the stator core and the stator base by welding and screwing bolts, and the overall assembly is performed after segmented welding. This not only reduces welding deformation, but also has good vibration isolation effect and mechanical properties.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a vibration-isolating high-strength generator stator base, which is in the shape of a hollow cylinder, and the stator iron core is embedded in the stator base; the stator base includes an excitation end base, a middle end base and a steam end base; the excitation end base, the middle end base and the steam end base are arranged in sequence and welded and fixed; a vibration isolation spring assembly is welded to the inner wall of the stator base; the vibration isolation spring assembly is arranged on both sides and the bottom of the inner wall and is arranged axially along the stator base; the vibration isolation spring assembly is provided with a fixing screw hole, and the fixing screw hole connects the vibration isolation spring assembly between the stator base and the stator iron core.

[0005] The generator stator frame is large and heavy, and its structure consists of numerous layers, making it susceptible to deformation during welding. Therefore, a method of welding the components in sections followed by overall assembly is employed. This not only reduces welding deformation but also simplifies production complexity and improves efficiency. Simultaneously, the vibration isolation spring assembly is welded during assembly. This reduces vibration transmission from the stator core to the stator frame and generator foundation, providing enhanced vibration isolation and mechanical properties, and improving the generator's operational reliability. Bolting the components into the mounting holes strengthens the connection of the isolation spring assembly, achieving dual fixation through welding and bolting.

[0006] Furthermore, the excitation end base includes an excitation end outer cover plate and an excitation end frame; the excitation end frame is arranged within the excitation end outer cover plate; the excitation end frame includes an excitation end outer wall, an excitation end reinforcement ring, and excitation end support ribs; multiple excitation end support ribs are provided, and an excitation end support rib is provided between the excitation end outer wall and the excitation end reinforcement ring, with both ends of the excitation end support rib connecting the excitation end outer wall and the excitation end reinforcement ring; the excitation end outer cover plate welds the excitation end outer wall, the excitation end reinforcement ring, and the excitation end support ribs to secure them. The excitation end frame is supported by the excitation end outer wall, the excitation end reinforcement ring, and the multiple excitation end support ribs, and the excitation end outer cover plate is then welded to the outside of the excitation end frame to ensure the structural strength of the stator base excitation end.

[0007] Furthermore, the mid-end base includes a mid-end outer cover plate and a mid-end frame; the mid-end frame is welded from multiple layers of brackets, and the mid-end outer cover plate is welded to the outside of the mid-end frame; the mid-end frame includes a set of middle wall rings and a set of support plates; the middle wall rings are arranged in adjacent intervals, and the support plates are welded perpendicularly to the middle wall rings in the axial direction to form multiple nodes, and the multiple nodes are connected to form a spatial network structure. The multiple layers of brackets are welded to form the mid-end frame, and after the welding of the middle-end frame is completed, the middle-end outer cover plate is welded to ensure the structural strength of the mid-end base. The middle wall rings and support plates are welded together to form a spatial grid with a certain regularity. It has excellent stress-bearing performance, high spatial rigidity, simple structure, and convenient welding, which ensures the structural strength of the mid-end of the stator base.

[0008] Furthermore, the steam terminal base includes a steam terminal cover plate and a steam terminal frame; the steam terminal cover plate is disposed outside the steam terminal frame; the steam terminal frame includes a steam terminal outer wall, a steam terminal reinforcement ring, and steam terminal support ribs; multiple steam terminal support ribs are provided, with steam terminal support ribs disposed between the steam terminal outer wall and the steam terminal reinforcement ring, and the ends of the steam terminal support ribs connecting the steam terminal outer wall and the steam terminal reinforcement ring; the steam terminal cover plate welds the steam terminal outer wall, the steam terminal reinforcement ring, and the steam terminal support ribs to secure them. The steam terminal frame is supported by the steam terminal outer wall, the steam terminal reinforcement ring, and the multiple steam terminal support ribs, and the steam terminal cover plate is then welded to the outside of the steam terminal frame to ensure the structural strength of the stator base steam terminal.

[0009] Furthermore, the vibration isolation spring assembly includes a first vibration isolation spring plate and a second vibration isolation spring plate; the first vibration isolation spring plate is composed of two long spring plates, and the concave groove formed between the two long spring plates is a positioning groove; one end of the second vibration isolation spring plate is embedded in the positioning groove; the first vibration isolation spring plate is provided with a first fixing screw hole, and the first fixing screw hole passes through the two long spring plates and the second vibration isolation spring plate; the second vibration isolation spring plate is provided with a second fixing screw hole at one end away from the positioning groove.

[0010] The high-speed rotation of the generator rotor generates a large magnetic field, causing core vibration. A vibration isolation spring assembly is welded between the stator frame and the core. This assembly supports the generator stator core and stator bars, effectively preventing core loosening and reducing vibration transmission. It also provides excellent vibration isolation and mechanical properties, enhancing the generator's safety factor. The positioning groove allows the second isolation spring plate to be embedded and welded to the first isolation spring plate. Both the first and second fixing screw holes are secured with bolts, enhancing the connection of the isolation spring assembly and ensuring long-term vibration isolation for the generator.

[0011] Furthermore, a group of three or more first vibration isolation spring plates is provided, and three groups of four to six second vibration isolation spring plates are provided. Each group of second vibration isolation spring plates is spaced adjacently within the positioning slot. A clamping ring is provided between adjacent second vibration isolation spring plates. The clamping ring is sleeved over the exterior of the first vibration isolation spring plates and welds the second vibration isolation spring plates to the first vibration isolation spring plates. The clamping ring welds the second vibration isolation spring plates to the positioning slots, restricting movement of the second vibration isolation spring plates within the slots, ensuring that the vibration isolation spring assembly achieves maximum vibration isolation, thereby improving the operational safety of the generator.

[0012] Furthermore, a foot plate is provided near the bottom of the stator frame, and the foot plate is axially arranged on both sides of the stator frame; a set of support ribs are provided on the foot plate. The support ribs are provided on both sides of the stator frame near the bottom to further enhance the welding stability between the foot plate and the outer cover plate.

[0013] Furthermore, a set of handhole flanges are provided on both sides of the stator frame, facing the first fixing screw hole; a set of temperature measurement lead flanges are symmetrically provided on both sides of the excitation end cover plate and the steam end cover plate. After the stator core is installed, the gap between the outer circle of the stator core and the inner circle of the stator frame is very small, making it impossible to drill in and successfully install the vibration isolation spring assembly. A handhole flange is provided directly opposite the first fixing screw hole. A person can insert a hand through the handhole flange into the inner wall of the stator frame and tighten the fixing screw hole with bolts, achieving a dual-path connection through welding and bolting, ensuring the secure connection of the vibration isolation spring assembly.

[0014] Furthermore, the stator base is symmetrically provided with lifting brackets on both sides, and there are four or more lifting brackets. The stator base is large in size and weight, and the multiple lifting brackets symmetrically provided on both sides of the stator base can facilitate lifting and moving the stator base, saving time, effort and labor.

[0015] Furthermore, a plurality of ducts are provided on the inner wall of the stator base; cooler supports are provided on the top of the excitation end base and the steam end base; a cooling medium inlet is provided on the side of the cooler support, and a cooling medium outlet is provided at the bottom of the stator base; the cooling medium flows in from the cooling medium inlet and flows along the circumference of the frame to the bottom of the stator base.

[0016] Generators generate heat due to internal losses during operation, requiring a cooling medium to cool the windings and stator core to maintain temperatures within acceptable limits. Before the generator is operated, a cooling medium is manually filled into the ducts. The cooling medium flows through the ducts, removing the heat generated by the losses. During shutdown for maintenance, the cooling medium is discharged through the cooling medium outlet. Cooling media can be gases or liquids such as hydrogen, air, and cooling water.

[0017] Beneficial effects

[0018] The utility model fixes the vibration isolation spring assembly between the stator core and the stator frame by a dual connection method of welding and screwing bolts, thereby achieving a good vibration isolation effect, having excellent mechanical properties, and improving the safety and reliability of the generator operation.

[0019] The generator stator frame structure has many layers and is complex. The utility model adopts an installation method of first welding in sections and then assembling the whole. It can not only reduce the welding deformation and reduce the production difficulty, but also improve the production efficiency and ensure the structural strength of the welding of the excitation end, middle end and steam end of the stator frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of a vibration-isolating high-strength generator stator frame;

[0021] Figure 2 This is a front view of the vibration-isolating high-strength generator stator frame;

[0022] Figure 3 This is a structural diagram of a vibration-isolated high-strength generator stator frame;

[0023] Figure 4 This is a schematic diagram of the base plate structure;

[0024] Figure 5 It is a structural diagram of the vibration isolation spring assembly;

[0025] Figure 6 It is a partial schematic diagram of the vibration isolation spring assembly;

[0026] Figure 7 This is a top view of the vibration-isolated high-strength generator stator frame;

[0027] Figure 8 This is a bottom view of the vibration-isolating high-strength generator stator frame.

[0028] In the accompanying drawings: 1. Excitation end base; 11. Excitation end outer cover plate; 12. Excitation end frame; 121. Excitation end outer wall; 122. Excitation end reinforcement ring; 123. Excitation end support rib; 2. Mid-end base; 21. Mid-end outer cover plate; 22. Mid-end frame; 221. Mid-wall ring; 222. Support plate; 3. Steam terminal base; 31. Steam terminal outer cover plate; 32. Steam terminal frame; 321. Steam terminal outer wall; 322. Steam terminal reinforcement ring; 323. Steam terminal support rib; 4. Base plate; 41. Support rib; 5. Vibration isolation spring assembly; 51. First vibration isolation spring plate; 52. Second vibration isolation spring plate; 53. Positioning groove; 54. Clamping ring; 55. First fixing screw hole; 56. Second fixing screw hole; 6. Climbing seat; 7. Cooler support; 8. Conduit; 81. Cooling medium inlet; 82. Cooling medium outlet; 9. Hand hole flange; 10. Temperature measuring lead flange. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below. The embodiments described below are examples and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0030] like Figure 1 、 Figure 3 As shown, the stator frame is hollow cylindrical, and the stator core is embedded in the stator frame; the stator frame includes an excitation end frame 1, a middle end frame 2 and a steam end frame 3; the excitation end frame 1, the middle end frame 2 and the steam end frame 3 are arranged in sequence and welded and fixed; a vibration isolation spring assembly 5 is welded to the inner wall of the stator frame; the vibration isolation spring assembly 5 is arranged on both sides and the bottom of the inner wall and is arranged axially along the stator frame; the vibration isolation spring assembly 5 is provided with fixing screw holes, which connect the vibration isolation spring assembly 5 between the stator frame and the stator core.

[0031] The stator frame of the generator is large in size and weight, and the stator frame has many layers, which makes it easy to deform during the welding process. Therefore, it is welded and fixed by first welding in sections and then assembling the whole. This not only reduces the amount of welding deformation, but also reduces the difficulty of production and improves production efficiency. At the same time, the vibration isolation spring assembly 5 is welded during the assembly process. The vibration isolation spring assembly 5 reduces the vibration transmission from the stator core to the stator frame and the generator foundation, has better vibration isolation effect and mechanical properties, and improves the operating reliability of the generator. Tightening the bolts in the fixing screw holes can enhance the connection strength of the vibration isolation spring assembly, achieving dual fixation by welding and tightening the bolts.

[0032] like Figure 2 、 Figure 3As shown, the excitation end base 1 includes an excitation end outer cover plate 11 and an excitation end frame 12; the excitation end frame 12 is arranged inside the excitation end outer cover plate 11; the excitation end frame 12 includes an excitation end outer wall 121, an excitation end reinforcement ring 122, and an excitation end support rib 123; there are multiple excitation end support ribs 123, and an excitation end support rib 123 is arranged between the excitation end outer wall 121 and the excitation end reinforcement ring 122, and the two ends of the excitation end support rib 123 connect the excitation end outer wall 121 and the excitation end reinforcement ring 122; the excitation end outer cover plate 11 welds the excitation end outer wall 121, the excitation end reinforcement ring 122, and the excitation end support rib 123 to fix them. The excitation end frame 12 is supported by the excitation end outer wall 121, the excitation end reinforcement ring 122, and the multiple excitation end support ribs 123, and then the excitation end outer cover plate 11 is welded to the outside of the excitation end frame 12 to ensure the structural strength of the stator base excitation end.

[0033] like Figure 2 、 Figure 3 As shown, the mid-end base 2 includes a mid-end outer cover plate 21 and a mid-end frame 22. The mid-end frame 22 is welded together from multiple layers of brackets, with the mid-end outer cover plate 21 welded to the outside of the mid-end frame 22. The mid-end frame 22 includes a set of middle wall rings 221 and a set of support plates 222. The middle wall rings 221 are spaced adjacent to each other, and the support plates 222 are welded perpendicularly to the middle wall rings 221 in the axial direction to form multiple nodes. These multiple nodes are connected to form a spatial network structure. The multiple layers of brackets are welded together to form the mid-end frame 22. After the welding of the middle frame 22 is completed, the middle-end outer cover plate 21 is welded to ensure the structural strength of the mid-end base 2. The middle wall rings 221 and support plates 222 are welded together to form a regular spatial grid. This grid has excellent stress-bearing properties, high spatial rigidity, simple construction, and convenient welding, ensuring the structural strength of the stator base mid-end.

[0034] like Figure 2 、 Figure 3 As shown, the steam terminal base 3 includes a steam terminal outer cover plate 31 and a steam terminal frame 32. The steam terminal outer cover plate 31 is disposed outside the steam terminal frame 32. The steam terminal frame 32 includes a steam terminal outer wall 321, a steam terminal reinforcement ring 322, and steam terminal support ribs 323. Multiple steam terminal support ribs 323 are provided, with steam terminal support ribs 323 disposed between the steam terminal outer wall 321 and the steam terminal reinforcement ring 322. The ends of the steam terminal support ribs 323 connect the steam terminal outer wall 321 and the steam terminal reinforcement ring 322. The steam terminal outer cover plate 31 welds the steam terminal outer wall 321, the steam terminal reinforcement ring 322, and the steam terminal support ribs 323 to each other. The steam terminal frame 32 is supported by the steam terminal outer wall 321, the steam terminal reinforcement ring 322, and the multiple steam terminal support ribs 323. The steam terminal outer cover plate 31 is then welded to the outside of the steam terminal frame 32 to ensure the structural strength of the stator base steam end.

[0035] like Figure 5 、 Figure 6As shown, the vibration isolation spring assembly 5 includes a first vibration isolation spring plate 51 and a second vibration isolation spring plate 52; the first vibration isolation spring plate 51 is composed of two long spring plates, and the concave groove formed between the two long spring plates is a positioning groove 53; one end of the second vibration isolation spring plate 52 is embedded in the positioning groove 53; the first vibration isolation spring plate 51 is provided with a first fixing screw hole 55, and the first fixing screw hole 55 passes through the two long spring plates and the second vibration isolation spring plate 52; the second vibration isolation spring plate 52 is provided with a second fixing screw hole 56 at one end away from the positioning groove 53.

[0036] The high-speed rotation of the generator rotor generates a large magnetic field, causing the core to vibrate. A vibration isolation spring assembly 5 is welded between the stator frame and the core. This assembly supports the generator stator core and its wire rods, effectively preventing the core from loosening and reducing vibration transmission. It also provides excellent vibration isolation and mechanical properties, improving the generator's safety factor. The positioning groove 53 allows the second vibration isolation spring plate 52 to be embedded and welded to the first vibration isolation spring plate 51. Both the first and second fixing screw holes 55, 56 are secured by screws, enhancing the connection of the vibration isolation spring assembly 5 and ensuring long-term vibration isolation for the generator.

[0037] like Figure 5 、 Figure 6 As shown, a group of three or more first vibration isolation spring plates 51 is provided, and three groups of four to six second vibration isolation spring plates 52 are provided. A group of second vibration isolation spring plates 52 is spaced adjacently within a positioning slot 53. A clamping ring 54 is provided between adjacent second vibration isolation spring plates 52. The clamping ring 54 is sleeved around the outside of the first vibration isolation spring plates 51 and welds the second vibration isolation spring plates 52 to the first vibration isolation spring plates 51. The clamping ring 54 welds the second vibration isolation spring plates 52 to the positioning slot 53, restricting their movement within the slot, ensuring that the vibration isolation spring assembly 5 achieves maximum vibration isolation and improves the operating safety of the generator.

[0038] like Figure 4 As shown, a foot plate 4 is provided near the bottom of the stator frame. The foot plate 4 is axially arranged on both sides of the stator frame. A set of support ribs 41 are provided on the foot plate 4. The support ribs 41 are provided near the bottom of the stator frame on both sides to further enhance the welding stability between the foot plate 4 and the outer cover plate.

[0039] like Figure 1As shown, a set of hand hole flanges 9 are provided on both sides of the stator frame, and the hand hole flanges 9 are directly opposite to the first fixing screw hole 55; a set of temperature measuring lead flanges 10 are symmetrically provided on both sides of the excitation end outer cover plate 11 and the steam end outer cover plate 31. After the stator core is installed in place, the gap between the outer circle of the stator core and the inner circle of the stator frame is very small, and manual drilling is impossible to successfully install the vibration isolation spring assembly 5. The hand hole flange 9 is provided at a position directly opposite to the first fixing screw hole 55, so that a person can extend his hand through the hand hole flange 9 into the inner wall of the stator frame to connect the vibration isolation spring assembly 5 to the stator core, realizing dual-path connection by welding and bolting, making the connection more convenient and ensuring the firmness of the connection.

[0040] like Figure 1 As shown, there are four or more lifting brackets 6 symmetrically arranged on both sides of the stator base. The stator base is large in size and weight. The stator base is conveniently lifted and moved by symmetrically arranging multiple lifting brackets 6 on both sides of the stator base, which saves time, effort and labor.

[0041] like Figure 2 、 Figure 7 and Figure 8 As shown, the inner wall of the stator frame is provided with multiple ducts 8; the tops of the excitation end frame 1 and the steam end frame 3 are both provided with cooler supports 7; a cooling medium inlet 81 is provided on the side of the cooler support 7, and a cooling medium outlet 82 is provided at the bottom of the stator frame; the cooling medium flows in from the cooling medium inlet 81 and flows along the circumference of the frame to the bottom of the stator frame. When the generator is operating, heat is generated due to internal losses, and its windings and stator core need to be cooled by a cooling medium to maintain the temperature of each part within the allowable limit. Before the generator is operated, the cooling medium is manually filled into the ducts 8. The cooling medium flows in the ducts 8 and carries away the heat generated by the losses. When the generator is shut down for maintenance, the cooling medium is discharged from the cooling medium outlet 82. The cooling medium can be a gas or liquid such as hydrogen, air, or cooling water.

Claims

1. A vibration-isolating high-strength generator stator frame, characterized by: The stator frame is in the shape of a hollow cylinder, and the stator core is embedded in the stator frame; the stator frame comprises an excitation end frame (1), a middle end frame (2) and a steam end frame (3); the excitation end frame (1), the middle end frame (2) and the steam end frame (3) are arranged in sequence and welded and fixed; a vibration isolation spring assembly (5) is welded on the inner wall of the stator frame; the vibration isolation spring assembly (5) is arranged on both sides and the bottom of the inner wall and is arranged along the axial direction of the stator frame; the vibration isolation spring assembly (5) is provided with a fixing screw hole, and the fixing screw hole connects the vibration isolation spring assembly (5) between the stator frame and the stator core.

2. The vibration-isolating high-strength generator stator frame according to claim 1, characterized in that: The excitation end machine base (1) includes an excitation end outer cover plate (11) and an excitation end frame (12); the excitation end frame (12) is arranged in the excitation end outer cover plate (11); the excitation end frame (12) includes an excitation end outer wall (121), an excitation end reinforcement ring (122) and an excitation end support rib (123); a plurality of excitation end support ribs (123) are provided, an excitation end support rib (123) is provided between the excitation end outer wall (121) and the excitation end reinforcement ring (122), and two ends of the excitation end support rib (123) are connected to the excitation end outer wall (121) and the excitation end reinforcement ring (122); the excitation end outer cover plate (11) welds and fixes the excitation end outer wall (121), the excitation end reinforcement ring (122) and the excitation end support rib (123).

3. The vibration-isolating high-strength generator stator frame according to claim 1, characterized in that: The mid-end machine base (2) includes a mid-end outer cover plate (21) and a mid-end frame (22); the mid-end frame (22) is welded by multiple layers of brackets, and the mid-end outer cover plate (21) is welded to the outside of the mid-end frame (22); the mid-end frame (22) includes a group of middle wall rings (221) and a group of support plates (222); the middle wall rings (221) are arranged in adjacent intervals, and the support plates (222) are welded vertically to the middle wall rings (221) in the axial direction to form a plurality of nodes, and the plurality of nodes are connected to form a spatial network structure.

4. The vibration-isolating high-strength generator stator frame according to claim 2, characterized in that: The steam terminal base (3) comprises a steam terminal outer cover plate (31) and a steam terminal frame (32); the steam terminal outer cover plate (31) is arranged outside the steam terminal frame (32); the steam terminal frame (32) comprises a steam terminal outer wall (321), a steam terminal reinforcement ring (322), and a steam terminal support rib (323); a plurality of steam terminal support ribs (323) are provided, a steam terminal support rib (323) is provided between the steam terminal outer wall (321) and the steam terminal reinforcement ring (322), and two ends of the steam terminal support rib (323) are connected to the steam terminal outer wall (321) and the steam terminal reinforcement ring (322); the steam terminal outer cover plate (31) welds and fixes the steam terminal outer wall (321), the steam terminal reinforcement ring (322), and the steam terminal support rib (323).

5. The vibration-isolating high-strength generator stator frame according to claim 4, characterized in that: The vibration isolation spring assembly (5) includes a first vibration isolation spring plate (51) and a second vibration isolation spring plate (52); the first vibration isolation spring plate (51) is composed of two long spring plates, and the concave gap formed between the two long spring plates is a positioning groove (53); one end of the second vibration isolation spring plate (52) is embedded in the positioning groove (53); the first vibration isolation spring plate (51) is provided with a first fixing screw hole (55), and the first fixing screw hole (55) passes through the two long spring plates and the second vibration isolation spring plate (52); the second vibration isolation spring plate (52) is provided with a second fixing screw hole (56) at one end away from the positioning groove (53).

6. The vibration-isolating high-strength generator stator frame according to claim 5, characterized in that: The first vibration isolation spring plates (51) are provided in a group, i.e., three or more, and the second vibration isolation spring plates (52) are provided in three groups, with 4 to 6 plates in each group; a group of the second vibration isolation spring plates (52) are arranged in adjacent intervals in the positioning groove (53); a clamping ring (54) is provided between adjacent second vibration isolation spring plates (52), and the clamping ring (54) is sleeved on the outside of the first vibration isolation spring plates (51), and the second vibration isolation spring plates (52) are welded and fixed to the first vibration isolation spring plates (51).

7. The vibration-isolating high-strength generator stator frame according to claim 1, characterized in that: A foot plate (4) is provided near the bottom of the stator base, and the foot plate (4) is axially arranged on both sides of the stator base; a group of supporting ribs (41) is provided on the foot plate (4).

8. The vibration-isolating high-strength generator stator frame according to claim 5, characterized in that: A group of hand hole flanges (9) are provided on both sides of the stator frame, and the hand hole flanges (9) are directly opposite to the first fixing screw holes (55); a group of temperature measuring lead flanges (10) are symmetrically provided on both sides of the excitation end outer cover plate (11) and the steam end outer cover plate (31).

9. The vibration-isolating high-strength generator stator frame according to claim 1, characterized in that: Hanging seats (6) are symmetrically arranged on both sides of the stator frame, and four or more hanging seats (6) are provided.

10. The vibration-isolating high-strength generator stator frame according to claim 1, characterized in that: The inner wall of the stator base is provided with a plurality of conduits (8); the tops of the excitation end base (1) and the steam end base (3) are both provided with cooler supports (7); a cooling medium inlet (81) is provided on the side of the cooler support (7), and a cooling medium outlet (82) is provided at the bottom of the stator base; the cooling medium flows in from the cooling medium inlet (81) and flows along the circumference of the frame to the bottom of the stator base.

Images