Supporting and expanding mechanism for preventing large synchronous motor rotor exciting winding from deforming

Abstract

The utility model discloses a supporting and expanding mechanism for preventing a large-scale synchronous motor rotor excitation winding from deforming, which comprises a middle connecting piece arranged between adjacent synchronous motor rotor excitation windings and fixedly arranged on a rotor; the two supporting plates are arranged on the two sides of the middle connecting piece respectively; the upper surface of the supporting plate abuts against the coil.

Description

Technical Field

[0001] This utility model relates to the field of electric motor repair equipment technology, and in particular to a support mechanism for preventing deformation of the rotor excitation winding of a large synchronous motor. Background Technology

[0002] The rotor excitation winding of a large synchronous motor is installed on the rotor pole shoes. The number of windings varies depending on the number of poles. During the rotation of the motor, the windings are subjected to centrifugal force and open to both sides. The winding frame will also be displaced, leading to equipment failure. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a support and expansion mechanism to prevent deformation of the rotor excitation winding of a large synchronous motor.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A support mechanism for preventing deformation of the rotor excitation winding of a large synchronous motor, comprising:

[0006] The intermediate connector is located between adjacent synchronous machine rotor excitation windings and is fixedly installed on the rotor;

[0007] Two support plates are respectively set on both sides of the middle connector;

[0008] The upper surface of the support plate is pressed tightly against the coil.

[0009] The intermediate connector has two fastening screw holes for connecting the intermediate connector to the rotor.

[0010] An insulating material is provided between the upper surface of the support plate and the coil.

[0011] The upper surface of the support plate is an inclined surface that is oriented at an angle consistent with the corresponding surface of the coil.

[0012] The beneficial effects of this invention are: it can solve the equipment failure caused by the excitation winding of a large synchronous motor opening to both sides due to centrifugal force during rotation, resulting in displacement of the winding frame. This invention is applicable to the electric motor manufacturing and repair industry. By using this support to tighten the excitation winding and winding frame, multiple supports can be used depending on the size of the excitation winding, thus solving the equipment failure caused by the excitation winding opening to both sides due to centrifugal force and displacement of the winding frame during the rotation of a large synchronous motor. Attached Figure Description

[0013] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a front view of the present invention;

[0016] Figure 3 This is a top view of the present invention; Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0018] like Figures 1 to 3 As shown, a support mechanism for preventing deformation of the excitation winding of a large synchronous motor rotor includes: an intermediate connector 2, disposed between adjacent synchronous motor rotor excitation windings and fixedly mounted on the rotor; two support plates 1, respectively disposed on both sides of the intermediate connector 2; wherein the upper surface of the support plate 1 is pressed against the coil. The intermediate connector 2 is provided with two fastening screw holes 3 for connecting the intermediate connector 2 to the rotor. An insulating material is disposed between the upper surface of the support plate 1 and the coil. The upper surface of the support plate 1 is an inclined surface that is angularly aligned with the corresponding surface of the coil.

[0019] In use, this utility model is installed between the excitation windings of a large synchronous machine rotor. During the rotation of the synchronous machine's excitation windings, they are subjected to centrifugal force and open to both sides, causing equipment failure due to displacement of the winding frame. Depending on the number of stages and the size of the coils, different numbers of these utility models can be selected for support. The fastening screw holes 3 are used for bolting the expansion members to ensure that the intermediate connecting member 2 is firmly fixed to the rotor. To prevent the bolts from loosening, a loosening measure is adopted.

[0020] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tensioning mechanism for preventing deformation of an excitation winding of a rotor of a large synchronous electric machine, characterized in that, include: Intermediate connector (2) is set between adjacent synchronous machine rotor excitation windings and fixedly installed on the rotor; Two support plates (1) are respectively set on both sides of the intermediate connector (2); The upper surface of the support plate (1) is pressed against the coil.

2. A tensioning mechanism for preventing deformation of the field winding of a rotor of a large synchronous electric machine according to claim 1, characterized in that, The intermediate connector (2) is provided with two fastening screw holes (3) for connecting the intermediate connector (2) and the rotor.

3. A tensioning mechanism for preventing deformation of the field winding of a rotor of a large synchronous machine according to claim 1, characterized in that An insulating material is provided between the upper surface of the support plate (1) and the coil.

4. The bracing mechanism for preventing deformation of the field winding of the rotor of a large synchronous machine according to claim 1, characterized in that, The upper surface of the support plate (1) is an inclined surface that can be aligned with the angle of the coil's corresponding surface.

Images