Excitation lead fixing structure

Abstract

The utility model discloses an excitation lead fixing structure which comprises a main shaft, a rotor, a flat key, two first annular baffles, two second annular baffles, a plurality of cushion blocks, two pressing plates and a plurality of connecting bolts, key grooves are formed in the main shaft and the rotor, and the flat key is detachably installed in the two key grooves. The two first annular baffles and the two second annular baffles are fixedly installed on the front side and the rear side of the rotor respectively and are symmetrically distributed, and the diameter of the second annular baffles is larger than that of the first annular baffles. According to the utility model, the design is reasonable, the excitation lead can be conveniently threaded and wound on the rotor, the excitation lead can be limited and restrained through the plurality of winding displacement grooves, the winding flatness of the excitation lead is improved, the space is saved, the wound excitation lead can be protected by a cover, the excitation lead is prevented from being collided and scratched by foreign objects when the rotor rotates, and the service life of the excitation lead is prolonged. And the service life of the excitation lead is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to machine excitation lead fixing technical field, concretely is a kind of excitation lead fixing structure. BACKGROUND

[0002] The structure of water-turbine-generator excitation lead fixing generally adopts the structure of wire clamp directly clamping excitation lead, when unit operation, due to high speed and large diameter, the centrifugal force of excitation lead is large, excitation lead and wire clamp are easy to loosen and separate, and there is great hidden danger for safe operation of unit.

[0003] Through the search of the China patent announcement No.CN205248943U, a kind of water-turbine-generator excitation lead fixing structure, its technical points are: including water turbine support and excitation lead, a plurality of excitation lead wire clamps for clamping excitation lead are arranged on the water turbine support, the excitation lead wire clamp includes a pair of pad, and the excitation lead is located between the pair of pad.

[0004] The above scheme is found in actual operation Still there is at least the following defect: although the device can fix excitation lead, but excitation lead will cross stack in winding process, occupy space while affecting appearance, for this purpose, we propose a kind of excitation lead fixing structure to solve the above problems. UTILITY MODEL CONTENT

[0005] (I) technical problem solved

[0006] In view of the deficiencies of prior art, the utility model provides an excitation lead fixing structure, solves the problem that although excitation lead can be fixed, but excitation lead will cross stack in winding process, occupy space while affecting appearance.

[0007] (II) technical scheme

[0008] To achieve the above object, the utility model provides the following technical scheme: a kind of field excitation lead fixing structure, including main shaft, rotor, flat key, two first annular baffle, two second annular baffle, multiple cushion blocks, two pressing plates and multiple connecting bolts, keyway is set up in main shaft and rotor, flat key is detachably installed in two keyways, two first annular baffles and two second annular baffles are fixedly installed respectively on the front and back sides of rotor and symmetrically distributed, the diameter of second annular baffle is greater than the diameter of first annular baffle, multiple annular array distribution's threading holes are set up in rotor, multiple threading holes are located between first annular baffle and second annular baffle, multiple cushion blocks are fixedly installed respectively on the front and back sides of rotor and located between corresponding two threading holes, multiple connection holes of annular array distribution are set up in rotor, the through hole corresponding with connection hole is set up in two pressing plates, multiple connecting bolts are respectively arranged in corresponding connection hole and through hole, and two pressing plates are fixedly installed on rotor by multiple connecting bolts.

[0009] Preferably, the thickness of the two first annular baffles and the two second annular baffles is the same.

[0010] Preferably, the two pressing plates are fixedly installed with rubber pads on the side close to each other.

[0011] Preferably, the two corners of the multiple cushion blocks away from the rotor are rounded.

[0012] Preferably, the multiple cushion blocks are provided with multiple wire arranging grooves on the side away from the rotor.

[0013] Preferably, the two first annular baffles and the two second annular baffles are provided with multiple ventilation holes of annular array distribution.

[0014] Preferably, the two pressing plates are hollow structures, and the outer diameter of the two pressing plates is the same as the outer diameter of the rotor.

[0015] (Three) beneficial effects

[0016] The utility model provides a kind of field excitation lead fixing structure.It has the following beneficial effects:

[0017] (1), the field excitation lead fixing structure, by utilizing the combined action of two first annular baffles, two second annular baffles, multiple threading holes and multiple cushion blocks, can facilitate field excitation lead threading winding on rotor, and can limit and constrain field excitation lead through multiple wire arranging grooves, improve the flatness of field excitation lead winding, save space.

[0018] (2), the excitation lead fixing structure, through the combined action of two pressing plates, a plurality of connecting holes, a plurality of through holes and a plurality of connecting bolts, the wound excitation lead can be protected, the excitation lead is avoided from being scratched by external collision when the rotor rotates, and the service life of the excitation lead is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0020] Figure 2 It is a main view of the utility model sectional structure schematic view;

[0021] Figure 3 It is Figure 2 It is an enlarged schematic view of A part in the middle;

[0022] Figure 4 It is a three-dimensional structure schematic view of the utility model without front pressing plate.

[0023] In the drawing: 1, main shaft; 2, rotor; 3, keyway; 4, flat key; 5, first annular baffle; 6, second annular baffle; 7, threading hole; 8, cushion block; 9, connecting hole; 10, pressing plate; 11, connecting bolt; 12, wire arranging groove; 13, vent hole. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of protection of the utility model.

[0025] As Figures 1-4The utility model provides a technical scheme: a kind of excitation lead fixing structure, including main shaft 1, rotor 2, flat key 4, two first annular baffle 5, two second annular baffle 6, multiple cushion block 8, two pressing plate 10 and multiple connecting bolts 11, keyway 3 is set in main shaft 1 and rotor 2, flat key 4 can be detached and installed in two keyways 3, by the common action of flat key 4 and two keyways 3, main shaft 1 and rotor 2 can be connected, facilitate main shaft 1 drive rotor 2 to rotate, two first annular baffle 5 and two second annular baffle 6 are fixedly installed in the front and back sides of rotor 2 respectively and symmetrically distributed, the diameter of second annular baffle 6 is greater than the diameter of first annular baffle 5, by first annular baffle 5 and second annular baffle 6 can limit the winding of excitation lead, avoid the collapse of stacked excitation lead to slide, multiple thread holes 7 that are annular array distribution are set in rotor 2, multiple thread holes 7 are all located between first annular baffle 5 and second annular baffle 6, multiple cushion block 8 are fixedly installed in the front and back sides of rotor 2 respectively and are located between corresponding two thread holes 7, multiple connecting holes 9 that are annular array distribution are set in rotor 2, the through hole corresponding with connecting hole 9 is set in two pressing plate 10, multiple connecting bolts 11 are respectively arranged in corresponding connecting hole 9 and through hole, two pressing plate 10 are fixedly installed on rotor 2 by multiple connecting bolts 11, by two pressing plate 10 can cover protection to excitation lead, avoid suffering from external collision.

[0026] In the embodiment, the thickness of the two first annular baffles 5 and the two second annular baffles 6 is the same, a plurality of ventilation holes 13 that are annular array distribution are set in the two first annular baffles 5 and the two second annular baffles 6, rubber pads are fixedly installed on the sides of the two pressing plates 10 that are close to each other, the two rubber pads are in close contact with the corresponding first annular baffles 5 and second annular baffles 6 respectively, to avoid direct contact between the pressing plates 10 and the excitation lead, the two pressing plates 10 are hollow structures, and the outer diameters of the two pressing plates 10 are the same as the outer diameter of the rotor 2.

[0027] In the embodiment, the two corners of the multiple cushion blocks 8 that are away from the rotor 2 are rounded corners, which can reduce the damage of the corners to the excitation lead and prolong the service life of the excitation lead, a plurality of wire arranging grooves 12 are set in the sides of the multiple cushion blocks 8 that are away from the rotor 2, which can limit the excitation lead, avoid the movement of the excitation lead, and be beneficial to improving the flatness of the winding of the excitation lead and saving the occupied space.

[0028] Through the above structure, the excitation lead fixing structure can conveniently thread winding of the excitation lead on the rotor 2, and can limit and constrain the excitation lead through the plurality of wire arranging grooves 12, improve the flatness of the excitation lead winding, save space, and can also cover and protect the wound excitation lead, avoid the excitation lead from being scratched by external objects when the rotor 2 rotates, prolong the service life of the excitation lead, and in specific use, the excitation lead is sequentially threaded back and forth through the plurality of threading holes 7 in an S shape, the excitation lead is wound on the rotor 2, the length of winding is increased through the plurality of pads 8, and the damage of sharp corners to the excitation lead is reduced by using the rounded corners, under the auxiliary action of the wire arranging groove 12, the excitation lead can be uniformly and stably wound on the rotor 2, the occupied space is reduced, and under the blocking action of the two first annular baffles 5 and the second annular baffle 6, the excitation lead is fixed and constrained, the main shaft 1 and the rotor 2 are connected and fixed through the flat key 4, the rotor 2 is conveniently controlled to rotate by the main shaft 1, the two pressing plates 10 are connected and fixed on the rotor 2 through the plurality of connecting bolts 11, the wound excitation lead is covered and protected, the excitation lead is prevented from being damaged by external objects when the rotor 2 rotates, and the service life of the excitation lead is effectively prolonged.

[0029] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. An excitation lead fixing structure, characterized in that: The invention comprises a main shaft (1), a rotor (2), a flat key (4), two first annular baffles (5), two second annular baffles (6), a plurality of spacers (8), two pressure plates (10) and a plurality of connecting bolts (11), wherein the main shaft (1) and the rotor (2) are both provided with keyways (3), the flat key (4) is detachably mounted in the two keyways (3), the two first annular baffles (5) and the two second annular baffles (6) are respectively fixedly mounted on the front and rear sides of the rotor (2) and are symmetrically distributed, the diameter of the second annular baffle (6) is larger than the diameter of the first annular baffle (5), and the rotor (2) is provided with a plurality of annular arrays. The invention relates to a method for manufacturing a rotor (2) comprising: providing a plurality of threading holes (7) for the cloth, wherein the plurality of threading holes (7) are located between the first annular baffle (5) and the second annular baffle (6), and the plurality of pads (8) are respectively fixedly mounted on the front and rear sides of the rotor (2) and located between the two corresponding threading holes (7). The rotor (2) is provided with a plurality of connecting holes (9) distributed in an annular array, and the two pressure plates (10) are each provided with a through hole corresponding to the connecting holes (9). The plurality of connecting bolts (11) are respectively arranged in the corresponding connecting holes (9) and the through hole, and the two pressure plates (10) are fixedly mounted on the rotor (2) by the plurality of connecting bolts (11).

2. The excitation lead fixing structure according to claim 1, characterized in that: The two first annular baffles (5) and the two second annular baffles (6) have the same thickness.

3. The excitation lead fixing structure according to claim 1, characterized in that: A rubber pad is fixedly mounted on one side of the two pressing plates (10) that are close to each other.

4. The excitation lead fixing structure according to claim 1, characterized in that: The two corners of the plurality of pads (8) away from the rotor (2) are both rounded.

5. The excitation lead fixing structure according to claim 1, characterized in that: A plurality of cable routing grooves (12) are provided on a side of the plurality of pads (8) away from the rotor (2).

6. The excitation lead fixing structure according to claim 1, characterized in that: The two first annular baffles (5) and the two second annular baffles (6) are each provided with a plurality of ventilation holes (13) distributed in an annular array.

7. The excitation lead fixing structure according to claim 1, characterized in that: The two pressing plates (10) are both hollow structures, and the outer diameters of the two pressing plates (10) are the same as the outer diameter of the rotor (2).

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