Excitation rotor lead fixed connection structure

Abstract

The utility model discloses an excitation rotor lead wire fixed connection structure, which comprises a main excitation lead wire head and a collector ring, an excitation lead wire is connected between the main excitation lead wire head and the collector ring, and two sides of the excitation lead wire are respectively connected with a limiting plate I and a limiting plate II; the left side of the first limiting plate and the right side of the second limiting plate are located on the same axis. The distance between the first limiting plate and the second limiting plate is not smaller than the width of the excitation lead. Extrusion layers are connected to the outer sides of the limiting plate I and the limiting plate II; the outer side of the extrusion layer is arc-shaped; the second limiting plate is located on the left side of the collector ring. The lower end of the extrusion layer on the second limiting plate is flush with the lower end of the collector ring. According to the utility model, the limiting plates are arranged on the two sides of the excitation rotor, so that the excitation lead forms a bending surface with a bending angle larger than a right angle, cracks caused by bending of the excitation lead are reduced, the bending part is prevented from being directly located at the welding position, and the excitation lead is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of excitation rotors, in particular to an excitation rotor lead fixing connection structure. Background Art

[0002] Since the excitation lead and the slip ring are in a perpendicular direction, the existing excitation lead is welded to the outside of the slip ring after being bent and formed at the end of the slip ring. The bent part of the excitation lead is close to the welding area, causing the bent part to be affected by welding thermal stress during welding, which is easy to damage the wire; and the bending angle of the bent part is small, which is easy to form bending cracks, reducing the use effect and service life of the wire. Utility Model Content

[0003] The purpose of the utility model is to solve the problems in the prior art and to propose an excitation rotor lead fixing connection structure.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A fixed connection structure for an excitation rotor lead, comprising a main excitation lead head and a slip ring, wherein an excitation lead is connected between the main excitation lead head and the slip ring, and the two sides of the excitation lead are respectively connected to a limit plate 1 and a limit plate 2; the left side of the limit plate 1 and the right side of the limit plate 2 are on the same axis; and the distance between the limit plate 1 and the limit plate 2 is not less than the width of the excitation lead; the outer sides of the limit plate 1 and the limit plate 2 are connected to an extrusion layer; and the outer side of the extrusion layer is arc-shaped; the limit plate 2 is located on the left side of the slip ring; and the lower end of the extrusion layer on the limit plate 2 is flush with the lower end of the slip ring.

[0006] Preferably, the excitation lead is sequentially wrapped around the right side of the limiting plate 1 and the left side of the limiting plate 2; and the excitation lead forms a curved surface 1 and a curved surface 2 in sequence; and the bending angles of the curved surface 1 and the curved surface 2 are both greater than a right angle.

[0007] Preferably, threaded holes are provided on both the first and second limiting plates; and the first and second limiting plates are fixedly connected to the rotor via the threaded holes.

[0008] Preferably, lead head 1 and lead head 2 are provided at both ends of the excitation lead respectively; the excitation lead is fixedly connected to the main excitation lead through lead head 1; the excitation lead is fixedly connected to the slip ring through lead head 2.

[0009] Preferably, both sides of the lead head 1 and the main excitation lead head are connected with pressure plates; the inner sides of the pressure plates are connected with protective layers; bolts are connected between the two pressure plates; the lead head 1 and the main excitation lead head are fixedly connected through the two pressure plates.

[0010] Preferably, the second lead head is arranged at the lower end of the slip ring and welded to the slip ring.

[0011] Compared with the prior art, the present invention provides a fixed connection structure for the excitation rotor lead wire, which has the following beneficial effects:

[0012] The excitation rotor lead fixed connection structure is provided with a limit plate 1 and a limit plate 2 on both sides of the excitation rotor, and an arc-shaped extrusion layer is provided on the outer side of the limit plate, so that the excitation lead is sequentially wrapped around the right side of the limit plate 1 and the left side of the limit plate 2, so that the bending angle of the bent portion formed by the excitation lead is greater than a right angle, thereby reducing cracks in the excitation lead caused by bending; and a certain distance is provided at the welding point between the excitation rotor and the merge ring through the limit plate at the lower end, thereby avoiding the bent portion from being directly located at the welding point, avoiding damage to the excitation lead, and increasing the service life of the excitation lead. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model.

[0014] In the figure: 10, main excitation lead head; 11, merge ring; 21, excitation lead; 211, curved surface 1; 212, curved surface 2; 22, limit plate 1; 23, limit plate 2; 24, threaded hole; 25, extrusion layer; 26, lead head 1; 27, lead head 2; 31, pressure plate; 32, protective layer; 33, bolt. DETAILED DESCRIPTION

[0015] The following will refer to Figure 1 , the specific implementation method of the excitation rotor lead fixed connection structure in the utility model is introduced, including a main excitation lead head 10 and a slip ring 11, an excitation lead 21 is connected between the main excitation lead head 10 and the slip ring 11, and the excitation lead 21 is connected to a limit plate 1 22 and a limit plate 2 23 on both sides; the left side of the limit plate 1 22 and the right side of the limit plate 2 23 are on the same axis; and the distance between the limit plate 1 22 and the limit plate 2 23 is not less than the width of the excitation lead 21; the outer sides of the limit plate 1 22 and the limit plate 2 23 are connected with an extrusion layer 25; and the outer side of the extrusion layer 25 is arc-shaped; the limit plate 2 23 is located on the left side of the slip ring 11; and the lower end of the extrusion layer 25 on the limit plate 2 23 is flush with the lower end of the slip ring 11, so that there is a certain distance between the welding point and the bending point of the excitation rotor and the slip ring to avoid damage to the lead.

[0016] The excitation lead 21 is sequentially wrapped around the right side of the limiting plate 1 22 and the left side of the limiting plate 2 23; and the excitation lead 21 forms a curved surface 1 211 and a curved surface 212 in sequence; and the bending angles of the curved surface 1 211 and the curved surface 2 212 are both greater than a right angle, to prevent the bending part from being broken due to the bending angle being too small.

[0017] To facilitate the installation of the limiting plate 1 22 and the limiting plate 2 23 , threaded holes 24 are provided on the limiting plate 1 22 and the limiting plate 2 23 ; the limiting plate 1 22 and the limiting plate 2 23 are fixedly connected to the rotor through the threaded holes 24 .

[0018] The excitation lead 21 is provided with a first lead 26 and a second lead 27 at both ends. The excitation lead 21 is fixedly connected to the main excitation lead 10 via the first lead 26. The excitation lead 21 is fixedly connected to the slip ring 11 via the second lead 27. The second lead 27 is provided at the lower end of the slip ring 11 and welded to the slip ring 11.

[0019] In order to facilitate the connection between the lead head 26 and the main excitation lead head 10, a pressure plate 31 is connected to both sides of the lead head 26 and the main excitation lead head 10; a protective layer 32 is connected to the inner side of the pressure plate 31; a bolt 33 is connected between the two pressure plates 31; the lead head 26 and the main excitation lead head 10 are fixedly connected by the two pressure plates 31. The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field can, within the technical scope disclosed by the present invention, use the technical solution and the structure of the present invention.

[0020] Any equivalent replacement or modification should be included in the protection scope of this utility model.

Claims

1. A fixed connection structure for an excitation rotor lead, comprising a main excitation lead head (10) and a slip ring (11), wherein an excitation lead (21) is connected between the main excitation lead head (10) and the slip ring (11), characterized in that: The excitation lead (21) is connected to a limit plate 1 (22) and a limit plate 2 (23) on both sides respectively; the left side of the limit plate 1 (22) and the right side of the limit plate 2 (23) are on the same axis; and the distance between the limit plate 1 (22) and the limit plate 2 (23) is not less than the width of the excitation lead (21); the outer sides of the limit plate 1 (22) and the limit plate 2 (23) are connected to an extrusion layer (25); and the outer side of the extrusion layer (25) is arc-shaped; the limit plate 2 (23) is located on the left side of the collector ring (11); and the lower end of the extrusion layer (25) on the limit plate 2 (23) is flush with the lower end of the collector ring (11).

2. The excitation rotor lead fixed connection structure according to claim 1, characterized in that: The excitation lead (21) is sequentially wrapped around the right side of the limiting plate 1 (22) and the left side of the limiting plate 2 (23); and the excitation lead (21) forms a curved surface 1 (211) and a curved surface 2 (212) in sequence; and the bending angles of the curved surface 1 (211) and the curved surface 2 (212) are both greater than a right angle.

3. The excitation rotor lead fixed connection structure according to claim 1, characterized in that: The first limiting plate (22) and the second limiting plate (23) are both provided with threaded holes (24); the first limiting plate (22) and the second limiting plate (23) are fixedly connected to the rotor via the threaded holes (24).

4. The excitation rotor lead fixed connection structure according to claim 1, characterized in that: The excitation lead (21) is provided with a lead head 1 (26) and a lead head 2 (27) at both ends respectively; the excitation lead (21) is fixedly connected to the main excitation lead head (10) through the lead head 1 (26); and the excitation lead (21) is fixedly connected to the collector ring (11) through the lead head 2 (27).

5. The excitation rotor lead fixing connection structure according to claim 4, characterized in that: Both sides of the lead head 1 (26) and the main excitation lead head (10) are connected with a pressure plate (31); the inner side of each pressure plate (31) is connected with a protective layer (32); a bolt (33) is connected between the two pressure plates (31); the lead head 1 (26) and the main excitation lead head (10) are fixedly connected via the two pressure plates (31).

6. The excitation rotor lead fixed connection structure according to claim 4, characterized in that: The second lead head (27) is arranged at the lower end of the slip ring (11) and is welded to the slip ring (11).

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