Cast iron reinforced generator end ring structure

Abstract

The utility model discloses a cast iron reinforced generator end ring structure, which comprises a main ring, a first reinforcing ring and a second reinforcing ring, the first reinforcing ring and the second reinforcing ring are arranged on two sides of the main ring, and the main ring is provided with a connecting component used for connecting the first reinforcing ring and the second reinforcing ring. The connecting assembly comprises a plurality of reinforcing plates which are fixedly connected to the side wall of the main ring and arranged in an annular array mode, threaded holes are formed in the two sides, close to the first reinforcing ring and the second reinforcing ring, of each reinforcing plate, and the first reinforcing ring is provided with a supporting assembly used for reinforcing and supporting the main ring. According to the generator end ring, through the arrangement of the connecting assembly, the stress originally concentrated on a single component can be effectively dispersed to a plurality of components, and the stress dispersion mode is beneficial to reducing the risk of component damage or failure caused by stress concentration, so that the use performance of the generator end ring is further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of generator end rings, in particular to a cast iron reinforced generator end ring structure. Background Art

[0002] The generator end ring is mainly used to prevent the rotor components and the excitation winding ends from deformation, displacement and eccentricity under the action of electromagnetic force and high-speed centrifugal force. Since the rotor end will be subjected to a large centrifugal force when the generator rotates at high speed, the end ring is used to fix the position of the winding end so that the end winding will not move when the rotor is running.

[0003] Existing generator end rings are mainly formed by integral casting and are relatively heavy overall. When the generator rotor rotates at high speed, the end rings are subjected to great centrifugal force, which causes deformation and stress concentration in the end rings, further increasing the risk of surface cracking of the end rings during long-term use.

[0004] Therefore, there is an urgent need for a cast iron reinforced generator end ring structure to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide a cast iron reinforced generator end ring structure to solve the problem in the above background technology that the end ring is subjected to a large centrifugal force, thereby causing deformation and stress concentration in the end ring.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a cast iron reinforced generator end ring structure, comprising a main ring, and further comprising a first reinforcement ring and a second reinforcement ring arranged on both sides of the main ring, wherein the main ring is provided with a connecting assembly for connecting the first reinforcement ring and the second reinforcement ring;

[0007] The connecting assembly includes a plurality of reinforcing plates arranged in a ring array and fixedly connected to the side wall of the main ring. Each of the reinforcing plates is provided with a threaded hole on both sides close to the first reinforcing ring and the second reinforcing ring. The side walls of the first reinforcing ring and the second reinforcing ring are provided with a plurality of countersunk holes, and each countersunk hole is provided with a bolt. The first reinforcing ring is provided with a support assembly for strengthening the support of the main ring.

[0008] The support assembly includes a support ring fixedly connected to the inner wall of the first reinforcement ring, and a plurality of support plates are fixedly connected to the side of the support ring close to the main ring. A plurality of support holes are opened on the side of the main ring close to the first reinforcement ring, and each of the support holes and the reinforcement plates are staggered, and each of the support plates is provided with a tightening assembly for tightening against the inner wall of the support hole.

[0009] The clamping assembly includes an installation cavity opened on the support plate, and through holes are opened on two opposite inner walls of the installation cavity. The two through holes are slidably connected with clamping plates. The ends of the two clamping plates close to each other are connected to the sliding plate through rubber pads. The two sliding plates are connected by four rubber rods symmetrically arranged in pairs. The support plate is provided with a driving assembly for driving the two clamping plates.

[0010] The driving assembly includes a driving rod slidably connected to the support plate. The driving rod is located on the inner side wall of the installation cavity and is fixedly connected to multiple driving plates. Multiple inclined surfaces are opened on the opposite sides of the two sliding plates. The two ends of each driving plate are respectively slidably connected to the inclined surfaces. The end of the driving rod close to the support ring is connected to the bottom wall of the installation cavity through a rubber column.

[0011] The main ring is provided with a plurality of weight-reducing cavities, and each of the weight-reducing cavities is staggered with the supporting holes.

[0012] The main ring, the first reinforcement ring and the second reinforcement ring are cast from high-strength, non-magnetic austenitic steel.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model, through the setting of the connecting component and the supporting effect of the supporting component, improves the use strength of the main ring and utilizes the split assembly of multiple components to effectively disperse the stress originally concentrated on a single component to multiple components. This method of dispersing stress helps to reduce the risk of component damage or failure caused by stress concentration, thereby further enhancing the use performance of the generator end ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the connection assembly of the utility model;

[0017] Figure 3 This is a schematic diagram of the weight-reducing cavity and support hole structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the support assembly structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the drive assembly structure of the utility model.

[0020] In the figure: 1. Main ring; 2. First reinforcement ring; 3. Second reinforcement ring; 401. Reinforcement plate; 402. Threaded hole; 403. Bolt; 501. Support ring; 502. Support plate; 503. Support hole; 601. Through hole; 602. Clamping plate; 603. Sliding plate; 604. Rubber rod; 701. Drive rod; 702. Drive plate; 703. Inclined surface; 704. Rubber column; 8. Weight reduction cavity. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1

[0023] See also Figure 1-Figure 5 The figure shows a cast iron reinforced generator end ring structure, comprising a main ring 1, and also comprising a first reinforcement ring 2 and a second reinforcement ring 3 provided on both sides of the main ring 1. The main ring 1 is provided with a connecting assembly for connecting the first reinforcement ring 2 and the second reinforcement ring 3.

[0024] The connection assembly includes a plurality of reinforcing plates 401 fixedly connected to the side wall of the main ring 1 and arranged in an annular array. Each reinforcing plate 401 has a threaded hole 402 on both sides near the first reinforcing ring 2 and the second reinforcing ring 3. The side walls of the first and second reinforcing rings 2 and 3 are provided with a plurality of countersunk holes, each of which is equipped with a bolt 403. The first reinforcing ring 2 is provided with a support assembly for strengthening the support of the main ring 1.

[0025] It should be noted here that: through the setting of the connecting component, under the supporting effect of the supporting component, while improving the use strength of the main ring 1, the use of multi-component split assembly can effectively disperse the stress originally concentrated on a single component to multiple components. This method of dispersing stress helps to reduce the risk of component damage or failure due to stress concentration, thereby further enhancing the use performance of the generator end ring.

[0026] See also Figure 2-Figure 5 The support assembly shown in the figure includes a support ring 501 fixedly connected to the inner wall of the first reinforcement ring 2. A plurality of support plates 502 are fixedly connected to the side of the support ring 501 close to the main ring 1. A plurality of support holes 503 are opened on the side of the main ring 1 close to the first reinforcement ring 2. Each support hole 503 is staggered with the reinforcement plate 401. Each support plate 502 is provided with a tightening assembly for tightening against the inner wall of the support hole 503.

[0027] It should be noted here that the support assembly is provided to improve the strength of the main ring 1 .

[0028] See also Figure 4 and Figure 5 The tightening assembly shown in the figure includes a mounting cavity provided on the support plate 502, and two opposite inner walls of the mounting cavity are provided with through holes 601, and the two through holes 601 are slidably connected to the tightening plates 602, and the ends of the two tightening plates 602 close to each other are connected to the sliding plates 603 through rubber pads, and the two sliding plates 603 are connected by four rubber rods 604 symmetrically arranged in pairs, and the support plate 502 is provided with a driving assembly for driving the two tightening plates 602;

[0029] It should be noted here that the arrangement of the pressing assembly ensures that the support plate 502 supports the support hole 503 .

[0030] See also Figure 5 The driving assembly shown in the figure includes a driving rod 701 slidably connected to the support plate 502. The driving rod 701 is located on the inner side wall of the installation cavity and is fixedly connected to multiple driving plates 702. A plurality of inclined surfaces 703 are provided on the opposite sides of the two sliding plates 603. The two ends of each driving plate 702 are respectively slidably connected to the inclined surfaces 703. The end of the driving rod 701 close to the support ring 501 is connected to the bottom wall of the installation cavity through a rubber column 704.

[0031] It should be noted here that: by setting the driving assembly, it is convenient to push the two abutting plates 602 to move away from each other, thereby achieving the abutment between the two abutting plates 602 and the inner wall of the support hole 503.

[0032] Working Principle: When using the generator end ring, first connect the first reinforcement ring 2 to the main ring 1. During the connection process of the first reinforcement ring 2, the multiple support plates 502 on one side of the first reinforcement ring 2 are inserted into the support holes 503 on the main ring 1. Then, the main ring 1 and the first reinforcement ring 2 are connected using bolts 403.

[0033] In the process of connecting the first reinforcement ring 1, the driving rod 701 on the support plate 502 will be pushed against the bottom wall of the support hole 503, thereby pushing the driving rod 701 to retract into the installation cavity. In the process of the driving rod 701 retracting into the installation cavity, the driving plate 702 will be pushed to move in the installation cavity. Further, by utilizing the interaction force between the driving plate 702 and the inclined surface 703 and the guiding effect of the through hole 601, the clamping plates 602 on one side of the sliding plate 603 will be pushed away from each other. After the main ring 1 and the first reinforcement ring 2 are connected, the two clamping plates 602 will be pushed against the inner wall of the support hole 503, thereby ensuring the supporting effect of the support plate 502 on the support hole 503.

[0034] After the first reinforcement ring 2 is connected to the main ring 1, the second reinforcement ring 3 can be connected to the main ring 1 by means of bolts 403. Thus, through the reinforcing effect of the first reinforcement ring 2 and the second reinforcement ring 3 and the supporting effect of the supporting assembly, while improving the use strength of the main ring 1, the use of multi-component split assembly can effectively disperse the stress originally concentrated on a single component to multiple components. This method of dispersing stress helps to reduce the risk of component damage or failure due to stress concentration, thereby further enhancing the performance of the generator end ring.

[0035] Example 2

[0036] See also Figure 3 This embodiment further illustrates Example 1. The main ring 1 shown in the figure is provided with a plurality of weight-reducing cavities 8, and each weight-reducing cavity 8 is staggered with the support hole 503.

[0037] It should be noted here that the provision of multiple weight-reducing cavities 8 reduces the weight of the main ring 1 while ensuring the strength of the main ring 1, thereby reducing the centrifugal force applied to the main ring during use.

[0038] Example 3

[0039] See also Figure 1 This embodiment is a further explanation of other embodiments. The main ring 1, the first reinforcement ring 2 and the second reinforcement ring 3 shown in the figure are cast from high-strength, non-magnetic austenitic steel;

[0040] It should be noted here that by using high-strength, non-magnetic austenitic steel to cast the main ring 1, the first reinforcement ring 2 and the second reinforcement ring 3, the strength performance of the main ring 1, the first reinforcement ring 2 and the second reinforcement ring 3 can be improved while avoiding interference with the magnetic field inside the generator.

[0041] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A cast iron reinforced generator end ring structure, comprising: Main ring (1); It is characterized by further comprising: A first reinforcement ring (2) and a second reinforcement ring (3) are arranged on both sides of the main ring (1), and the main ring (1) is provided with a connection assembly for connecting the first reinforcement ring (2) and the second reinforcement ring (3); The connection assembly comprises a plurality of reinforcing plates (401) fixedly connected to the side wall of the main ring (1) and arranged in an annular array, each of the reinforcing plates (401) being provided with a threaded hole (402) on both sides close to the first reinforcing ring (2) and the second reinforcing ring (3), a plurality of countersunk holes being provided on the side walls of the first reinforcing ring (2) and the second reinforcing ring (3), and a bolt (403) being provided in each countersunk hole, and the first reinforcing ring (2) being provided with a support assembly for reinforcing and supporting the main ring (1).

2. The cast iron reinforced generator end ring structure according to claim 1, characterized in that: The support assembly comprises a support ring (501) fixedly connected to the inner wall of the first reinforcement ring (2); a plurality of support plates (502) are fixedly connected to a side of the support ring (501) close to the main ring (1); a plurality of support holes (503) are provided on a side of the main ring (1) close to the first reinforcement ring (2); each of the support holes (503) and the reinforcement plate (401) are staggered; and each of the support plates (502) is provided with a tightening assembly for tightening against the inner wall of the support hole (503).

3. The cast iron reinforced generator end ring structure according to claim 2, characterized in that: The clamping assembly includes an installation cavity opened on the support plate (502), two inner walls opposite to each other of the installation cavity are provided with through holes (601), two of the through holes (601) are slidably connected to the clamping plates (602), one end of the two clamping plates (602) close to each other is connected to the sliding plate (603) through a rubber pad, and the two sliding plates (603) are connected by four rubber rods (604) symmetrically arranged in pairs, and the support plate (502) is provided with a driving assembly for driving the two clamping plates (602).

4. The cast iron reinforced generator end ring structure according to claim 3, characterized in that: The driving assembly includes a driving rod (701) slidably connected to the support plate (502), the driving rod (701) is located on the inner side wall of the installation cavity and is fixedly connected to multiple driving plates (702), and multiple inclined surfaces (703) are opened on the opposite side of the two sliding plates (603), and the two ends of each driving plate (702) are respectively slidably connected to the inclined surface (703), and the end of the driving rod (701) close to the support ring (501) is connected to the bottom wall of the installation cavity through a rubber column (704).

5. The cast iron reinforced generator end ring structure according to claim 1, characterized in that: The main ring (1) is provided with a plurality of weight-reducing cavities (8), and each of the weight-reducing cavities (8) is staggered with the supporting hole (503).

6. The cast iron reinforced generator end ring structure according to claim 1, characterized in that: The main ring (1), the first reinforcement ring (2) and the second reinforcement ring (3) are cast from high-strength, non-magnetic austenitic steel.

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