Wind shield structure for rotor end part of large-scale synchronous phase modifier

Abstract

The utility model discloses a large-scale synchronous phase modifier rotor end wind shield structure comprising a rotor main body and a mounting rack, the rotor main body is provided with a bearing and the mounting rack, the outer side of the mounting rack is provided with a housing, the mounting rack is provided with a mounting rod, the mounting rod is provided with a first groove body, a second groove body and a third groove body, and the first groove body, the second groove body and the third groove body are arranged in the housing. A wind shield is arranged on the mounting rod, a retaining ring is mounted on one side of the wind shield, a universal joint is arranged at the end, away from the retaining ring, of the wind shield, collecting grooves are formed in the two sides of the wind shield, and top pieces are arranged in the collecting grooves. The wind shield can be flexibly installed through the installation rods evenly distributed on the installation frame, meanwhile, the wind shield can be installed at different positions through the first groove bodies, the second groove bodies and the third groove bodies which are sequentially distributed on the installation rods from outside to inside, and gaps among the installation positions are different. And the installation position of the wind shield can be adjusted according to actual conditions.

Description

Technical Field

[0001] This utility model relates to the field of synchronous condenser technology, specifically to a windbreak structure at the end of a large synchronous condenser rotor. Background Technology

[0002] A synchronous condenser is a synchronous motor that provides or absorbs reactive power when operating without power or mechanical load. It operates as a motor but without a mechanical load, only providing reactive power to the power system. Also known as a synchronous compensator, the rotor of a synchronous condenser is equipped with baffles installed at the slip ring ends of the rotor. These baffles serve two purposes: they constitute the airflow path and they prevent carbon brush dust generated during the operation of the slip ring system from entering the motor's internal cavity and windings. Therefore, the baffles on both the stator and rotor have a dual function of guiding airflow and blocking dust. The baffle structure is particularly important when the synchronous condenser is operating at the rotor end.

[0003] Existing synchronous condenser rotor end baffles are mostly welded and fixed, which improves stability but makes it inconvenient to adjust the gap between them according to the operation of the synchronous condenser. Since the synchronous condenser is a compensation mechanism, the strength of the wind path during compensation varies depending on the compensation subject. The lack of an adjustment structure for the baffles will affect the operating efficiency of the rotor end. Therefore, a baffle structure that can flexibly adjust the rotor end baffle is provided to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a wind baffle structure at the end of a large synchronous condenser rotor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wind deflector structure at the end of a large synchronous condenser rotor, comprising a rotor body and a mounting frame. The rotor body is fitted with a bearing and the mounting frame, and a cover is provided on the outer side of the mounting frame. A mounting rod is mounted on the mounting frame, and a first groove, a second groove, and a third groove are distributed on the mounting rod. A wind deflector is provided on the mounting rod, and a retaining ring is mounted on one side of the wind deflector. A universal joint is provided at the end of the wind deflector away from the retaining ring. Grooves are formed on both sides of the wind deflector, and top plates are provided within the grooves. A retaining strip is mounted on the top plate, and a push-out spring connects the top plate to the groove.

[0006] Preferably, the number of mounting rods is set to eight, and the mounting rods are distributed in a circular array on the mounting frame.

[0007] Preferably, the first groove, the second groove, and the third groove are distributed sequentially from the outside to the inside on the mounting rod.

[0008] Preferably, a positioning rod is installed on the universal joint, and adjusting plates are evenly distributed on the positioning rod.

[0009] Preferably, the gap between the two adjusting plates is the same as the thickness of the retaining ring, and the positioning rod and the retaining ring are engaged.

[0010] Preferably, the positioning rod forms a rotating structure with the wind deflector via a universal joint.

[0011] Preferably, the top piece and the fastener are designed as a single unit, and the fastener is designed as an arc-shaped structure.

[0012] Preferably, the top plate and the receiving groove are nested and slidably connected, and the top plate forms a telescopic structure with the wind baffle through the ejection spring.

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

[0014] 1. This utility model can flexibly install the wind deflector by means of the evenly distributed mounting rods on the mounting frame. At the same time, the first groove, the second groove and the third groove distributed from the outside to the inside on the mounting rod can install the wind deflector in different positions. The gaps between them are different depending on the installation position, which makes it easy to adjust the installation position of the wind deflector according to the actual situation.

[0015] 2. This utility model uses a positioning rod on a universal joint to rotate and adjust the angle of the evenly distributed adjustment plates on it. The adjustment plates are used to adjust the gap between the two laterally distributed wind deflectors, thus achieving flexible installation of the wind deflectors.

[0016] 3. This utility model uses an ejector spring installed between the top plate and the receiving groove to eject the top plate so that it engages with the first groove, the second groove or the third groove. The ejector spring generates tension to position the installed wind deflector. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the overall internal structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the mounting bracket structure of this utility model.

[0020] Figure 4 This is a cross-sectional view of the mounting rod of this utility model.

[0021] Figure 5 This is a schematic diagram of the wind deflector installation structure of this utility model.

[0022] Figure 6 This is a cross-sectional view of the windbreak structure of this utility model.

[0023] In the diagram: 1. Rotor body; 2. Bearing; 3. Cover; 4. Mounting bracket; 5. Mounting rod; 6. First slot; 7. Second slot; 8. Third slot; 9. Baffle plate; 10. Buckle ring; 11. Universal joint; 12. Positioning rod; 13. Adjusting plate; 14. Slot closing; 15. Top plate; 16. Buckle strip; 17. Ejection spring. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] 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 based on the specific circumstances.

[0027] 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.

[0028] Please see Figure 1-4This utility model provides an embodiment of a large synchronous condenser rotor end baffle structure, including a rotor body 1 and a mounting frame 4. The rotor body 1 is equipped with a bearing 2 and the mounting frame 4, and a cover 3 is provided on the outer side of the mounting frame 4. The mounting frame 4 is equipped with mounting rods 5, the number of which is set to eight, and the mounting rods 5 are distributed in a circular array on the mounting frame 4. The mounting rods 5 evenly distributed on the mounting frame 4 can flexibly realize the installation of the baffle 9. The mounting rods 5 are equipped with a first groove 6, a second groove 7 and a third groove 8, which are distributed from the outside to the inside on the mounting rods 5. The first groove 6, the second groove 7 and the third groove 8 distributed from the outside to the inside on the mounting rods 5 can install the baffle 9 in different positions. The gaps between the different installation positions are also different, which makes it easy to adjust the installation position of the baffle 9 according to the actual situation.

[0029] A wind deflector 9 is provided on the mounting rod 5. A retaining ring 10 is installed on one side of the wind deflector 9. A universal joint 11 is provided at the end of the wind deflector 9 away from the retaining ring 10. A positioning rod 12 is installed on the universal joint 11. The positioning rod 12 and the wind deflector 9 form a rotating structure through the universal joint 11. The rotating positioning rod 12 can flexibly adjust the installation angle. Adjusting pieces 13 are evenly distributed on the positioning rod 12. The gap between the adjusting pieces 13 is the same as the thickness of the retaining ring 10. The positioning rod 12 and the retaining ring 10 are engaged. By rotating the positioning rod 12, the angle of the evenly distributed adjusting pieces 13 on it can be adjusted. The gap between the two laterally distributed wind deflectors 9 can be adjusted in conjunction with the adjusting pieces 13, so as to achieve flexible installation of the wind deflector 9.

[0030] Both sides of the wind deflector 9 are provided with receiving grooves 14, and a top piece 15 is provided in the receiving groove 14. A fastening strip 16 is installed on the top piece 15. The top piece 15 and the fastening strip 16 are designed as one piece, and the fastening strip 16 is designed with an arc structure to facilitate the movement of the top piece 15 through the fastening strip 16, and to facilitate the separation of the top piece 15 from the groove. A push-out spring 17 is connected between the top piece 15 and the receiving groove 14. The top piece 15 and the receiving groove 14 are nested and slidably connected, and the top piece 15 and the wind deflector 9 form a telescopic structure through the push-out spring 17. The push-out spring 17 installed between the top piece 15 and the receiving groove 14 can push the top piece 15 out so that it can engage with the first groove 6, the second groove 7 or the third groove 8. The tension generated by the push-out spring 17 is used to position the wind deflector 9 after installation.

[0031] Working principle: During installation, the cover 3 needs to be removed first. Then, the wind deflectors 9 are installed one by one according to the reserved gap. The gap determines the corresponding slot in the first slot 6, the second slot 7, or the third slot 8. The distance between the two installed wind deflectors 9 is adjusted according to the reserved gap. During installation, the wind deflector 9 is taken out, pushed, and pushed into the first slot 6, the second slot 7, or the third slot 8. Pushing it into the corresponding slot will push the spring 17, which will push the top piece 15 to limit it in the slot. When moving, the buckle 16 is fastened so that the top piece 15 is no longer limited, and the wind deflector 9 can be moved and taken out. After the installation of a single wind deflector 9 is completed, the position between two adjacent wind deflectors 9 is adjusted. During adjustment, the positioning rod 12 is rotated to engage with the buckle 10, and the adjusting piece 13 is used to limit the positioning rod 12 after installation to prevent displacement of the positioning rod 12 after installation. At this time, the distance between the two wind deflectors 9 is positioned. The wind deflectors 9 are then installed one by one.

[0032] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model 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 utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A windbreak structure at the end of a large synchronous condenser rotor, comprising a rotor body (1) and a mounting bracket (4), characterized in that: The rotor body (1) is equipped with a bearing (2) and a mounting bracket (4), and a cover (3) is provided on the outside of the mounting bracket (4). The mounting bracket (4) is equipped with a mounting rod (5), and a first groove (6), a second groove (7) and a third groove (8) are distributed on the mounting rod (5). A baffle plate (9) is provided on the mounting rod (5). A retaining ring (10) is installed on one side of the baffle plate (9). A universal joint (11) is provided at the end of the baffle plate (9) away from the retaining ring (10). A receiving groove (14) is opened on both sides of the baffle plate (9), and a top plate (15) is provided in the receiving groove (14). A retaining strip (16) is installed on the top plate (15). A push-out spring (17) is connected between the top plate (15) and the receiving groove (14).

2. The wind baffle structure at the end of a large synchronous condenser rotor according to claim 1, characterized in that: The number of mounting rods (5) is set to eight, and the mounting rods (5) are distributed in a circular array on the mounting frame (4).

3. The wind baffle structure at the end of a large synchronous condenser rotor according to claim 1, characterized in that: The first groove (6), the second groove (7) and the third groove (8) are distributed from the outside to the inside on the mounting rod (5).

4. The wind baffle structure at the end of a large synchronous condenser rotor according to claim 1, characterized in that: A positioning rod (12) is installed on the universal joint (11), and adjusting plates (13) are evenly distributed on the positioning rod (12).

5. The wind baffle structure at the end of a large synchronous condenser rotor according to claim 4, characterized in that: The gap between the two adjusting plates (13) is the same as the thickness of the retaining ring (10), and the positioning rod (12) and the retaining ring (10) are engaged.

6. The wind baffle structure at the end of a large synchronous condenser rotor according to claim 4, characterized in that: The positioning rod (12) forms a rotating structure with the wind deflector (9) through the universal joint (11).

7. The wind baffle structure at the end of a large synchronous condenser rotor according to claim 1, characterized in that: The top piece (15) and the fastener (16) are designed as a single unit, and the fastener (16) is designed as an arc-shaped structure.

8. The wind baffle structure at the end of a large synchronous condenser rotor according to claim 1, characterized in that: The top plate (15) and the receiving groove (14) are nested and slidably connected, and the top plate (15) forms a telescopic structure with the wind baffle (9) through the ejection spring (17).

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