Motor rotor fault simulation platform

Abstract

The utility model provides a motor rotor fault simulation platform, which comprises a casing, a middle shaft, a shaft seat and a base, a rotor is sleeved on the periphery of the middle shaft, a stator is arranged on the inner ring of the casing, the rotor is positioned on the inner ring of the stator, the middle shaft is rotatably sleeved to the upper end of the base through the shaft seat, the casing is mounted at the upper end of the base through a bottom plate, and the bottom plate can slide on the casing. The sliding bottom plate can drive the machine shell to move, and the concentricity of the moving machine shell and the center shaft can be adjusted. The motor rotor fault simulation platform is simple in structure, can simulate various installation states such as eccentric arrangement of a rotor and a stator or axial staggered arrangement of the rotor and the stator, is simple to operate, is low in manufacturing cost, can meet various test working conditions, and is high in test efficiency. The sliding table and the sliding groove are matched to limit the sliding track of the bottom plate on the deflection plate, and the structure is used for achieving axial staggered arrangement of the rotor and the stator.

Description

Technical Field

[0001] The utility model belongs to the field of motors, and in particular relates to a motor rotor fault simulation platform. Background Art

[0002] The prior art motor usually includes a coaxially arranged rotor and stator. Whether the rotor and stator are eccentric during installation is an important indicator of motor quality. Rotor eccentricity refers to the misalignment of the central axis of the motor rotor and the axis of the motor stator, which causes an unbalanced state when the motor rotates. There are many reasons for motor rotor eccentricity, such as: improper alignment of the rotor during assembly, bearing failure, external force impact during motor operation, etc.

[0003] Motor rotor eccentricity may bring many adverse effects to the motor, such as increased motor vibration, power reduction, and reduced efficiency. Therefore, it is very important to detect and deal with the motor rotor eccentricity problem in a timely manner. The motor rotor eccentricity problem can be effectively solved by dynamic balancing, bearing replacement, and enhanced maintenance, thereby improving the performance and service life of the motor. In production research, experimental detection of the impact of electronic rotor eccentricity on motor performance and whether there is a regularity is also an inspection project for motor reliability. The existing technology simulates the motor rotor eccentricity fault. The equipment structure is relatively complex and the equipment cost is high, which pushes up production and R&D costs. Utility Model Content

[0004] In view of this, the utility model aims to propose a motor rotor fault simulation platform to solve the problems of the motor simulation platform in the prior art, such as complex structure, inconvenient operation and high equipment cost.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A motor rotor fault simulation platform comprises a casing, a central shaft, a shaft seat and a base, wherein a rotor is sleeved on the outer periphery of the central shaft, a stator is arranged on the inner ring of the casing, and the rotor is located on the inner ring of the stator, the central shaft is rotatably sleeved to the upper end of the base through the shaft seat, the casing is mounted to the upper end of the base through a bottom plate, and the bottom plate can slide on the casing, the sliding bottom plate can drive the casing to move, and the moving casing can adjust the concentricity with the central shaft.

[0007] Furthermore, a slide groove is provided at the lower end of the base plate, a deflection plate is installed at the upper end of the base, a slide table is provided at the upper end of the deflection plate, and the slide table is slidably connected to the slide groove.

[0008] Furthermore, the lower end of the deflection plate is rotatably sleeved onto the upper end of the base.

[0009] Furthermore, a first adjustment plate is respectively provided on both sides of the deflection plate, and the first adjustment plate is installed on the base. Two first adjustment bolts are respectively threadedly installed on each first adjustment plate, and the two first adjustment bolts are respectively located at both ends of the deflection plate, and one end of each first adjustment bolt can abut against one side of the deflection plate.

[0010] Furthermore, a second adjustment plate is respectively provided at both ends of the base plate, and the second adjustment plate is installed on the base. Two second adjustment bolts are respectively threadedly installed on each second adjustment plate, and the two second adjustment bolts are respectively located on both sides of the base plate, and one end of each second adjustment bolt can abut against one end of the base plate.

[0011] Furthermore, a collector ring is sleeved on the periphery of the central shaft, and the rotor is connected to the power supply through the collector ring signal.

[0012] Furthermore, a balancing disk is sleeved on the periphery of the central shaft, and the collector ring is located between the rotor and the balancing disk.

[0013] Compared with the prior art, the motor rotor fault simulation platform described in the utility model has the following beneficial effects:

[0014] (1) The motor rotor fault simulation platform described in the utility model has a simple structure and can simulate various installation states such as eccentric settings of the rotor and stator, or axial misalignment settings of the rotor and stator. It is also simple to operate and has a low manufacturing cost, and can meet various test conditions.

[0015] (2) The motor rotor fault simulation platform described in the utility model, the cooperation of the slide and the slide groove is used to limit the sliding track of the bottom plate on the deflection plate, and this structure is used to realize the axial misalignment setting of the rotor and the stator.

[0016] (3) In the motor rotor fault simulation platform described in the present invention, one end of each first adjusting bolt can abut against one side of the deflection plate, and a plurality of first adjusting bolts arranged opposite to each other are used to achieve eccentricity between the rotor and the stator. The first adjusting bolt is used to locate the relative position of the deflection plate and the base; the second adjusting bolt is used to locate the relative position of the housing, the bottom plate and the deflection plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0018] Figure 1 It is a front view schematic diagram of the motor rotor fault simulation platform according to an embodiment of the utility model;

[0019] Figure 2 It is a top view schematic diagram of the motor rotor fault simulation platform according to an embodiment of the utility model;

[0020] Figure 3 It is a cross-sectional schematic diagram of the central shaft, rotor, collector ring and balancing disk described in an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1- housing; 2- middle axis; 3- axis seat; 4- base; 5- deflection plate; 6- bottom plate; 7- second adjustment plate; 8- first adjustment bolt; 9- second adjustment bolt; 10- first adjustment plate; 11- rotor; 12- collector ring; 13- balance disk. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0024] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0027] like Figure 1-Figure 3As shown, a motor rotor fault simulation platform includes a casing 1, a central axis 2, a shaft seat 3 and a base 4. A rotor 11 is sleeved on the outer periphery of the central axis 2, a stator is arranged on the inner ring of the casing 1, and the rotor 11 is located on the inner ring of the stator. The central axis 2 is rotatably sleeved to the upper end of the base 4 through the shaft seat 3. The casing 1 is installed to the upper end of the base 4 through the bottom plate 6, and the bottom plate 6 can slide on the casing 1. The sliding bottom plate 6 can drive the casing 1 to move, and the moving casing 1 can adjust the concentricity with the central axis 2. The device has a simple structure and can simulate various installation states such as eccentric settings of the rotor 11 and the stator, or axial misalignment settings of the rotor 11 and the stator. It is also simple to operate, has a low manufacturing cost, and can meet various test conditions.

[0028] A slide groove is provided at the lower end of the base plate 6, a deflection plate 5 is installed at the upper end of the base 4, a slide table is provided at the upper end of the deflection plate 5, and the slide table is slidably connected to the slide groove. The cooperation of the slide table and the slide groove is used to limit the sliding trajectory of the base plate 6 on the deflection plate 5. This structure is used to realize the axial misalignment setting of the rotor 11 and the stator.

[0029] The lower end of the deflection plate 5 is rotatably sleeved onto the upper end of the base 4. A first adjustment plate 10 is respectively arranged on both sides of the deflection plate 5. The first adjustment plate 10 is installed on the base 4. Two first adjustment bolts 8 are respectively threadedly installed on each first adjustment plate 10, and the two first adjustment bolts 8 are respectively located at the two ends of the deflection plate 5. One end of each first adjustment bolt 8 can abut against one side of the deflection plate 5. The multiple first adjustment bolts 8 arranged opposite to each other are used to realize the eccentricity of the rotor 11 and the stator. The first adjustment bolts 8 are used to locate the relative position of the deflection plate 5 and the base 4.

[0030] A second adjustment plate 7 is respectively provided at both ends of the bottom plate 6, and the second adjustment plate 7 is installed on the base 4. Two second adjustment bolts 9 are respectively threadedly installed on each second adjustment plate 7, and the two second adjustment bolts 9 are respectively located on both sides of the bottom plate 6. One end of each second adjustment bolt 9 can abut against one end of the bottom plate 6. The second adjustment bolt 9 is used to locate the relative positions of the casing 1, the bottom plate 6 and the deflection plate 5.

[0031] A collector ring 12 is sleeved on the outer periphery of the central axis 2, and the rotor 11 is connected to the power supply through the collector ring 12 signal. The collector ring 12 is a prior art, and the outer ring of the collector ring 12 can rotate relative to the inner ring of the collector ring 12. When the central axis 2, the rotor 11 and the inner ring of the collector ring 12 rotate, the outer ring of the collector ring 12 remains stationary to facilitate the series connection of the power line. During implementation, in order to facilitate the observation of the axial misalignment state of the rotor 11 and the stator, the central axis 2 is longer and the rotor 11 is not centrally arranged. It is necessary to sleeve a balancing disk 13 on the outer periphery of the central axis 2, and the collector ring 12 is located between the rotor 11 and the balancing disk 13.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Motor rotor fault simulation platform, characterized by: The invention comprises a casing (1), a central axis (2), an axle seat (3) and a base (4); a rotor (11) is sleeved on the outer periphery of the central axis (2); a stator is arranged on the inner ring of the casing (1), and the rotor (11) is located on the inner ring of the stator; the central axis (2) is rotatably sleeved to the upper end of the base (4) through the axle seat (3); the casing (1) is mounted on the upper end of the base (4) through a bottom plate (6); the bottom plate (6) can slide on the casing (1); the sliding bottom plate (6) can drive the casing (1) to move; and the movable casing (1) can adjust the concentricity with the central axis (2).

2. The motor rotor fault simulation platform according to claim 1, characterized in that: A slide groove is provided at the lower end of the bottom plate (6), a deflection plate (5) is installed at the upper end of the base (4), a slide table is provided at the upper end of the deflection plate (5), and the slide table is slidably connected to the slide groove.

3. The motor rotor fault simulation platform according to claim 2, characterized in that: The lower end of the deflection plate (5) is rotatably sleeved onto the upper end of the base (4).

4. The motor rotor fault simulation platform according to claim 2, characterized in that: A first adjustment plate (10) is respectively arranged on both sides of the deflection plate (5), the first adjustment plate (10) is mounted on the base (4), two first adjustment bolts (8) are respectively threadedly mounted on each first adjustment plate (10), and the two first adjustment bolts (8) are respectively located at two ends of the deflection plate (5), and one end of each first adjustment bolt (8) can abut against one side of the deflection plate (5).

5. The motor rotor fault simulation platform according to claim 4, characterized in that: A second adjustment plate (7) is respectively arranged at both ends of the bottom plate (6), and the second adjustment plate (7) is mounted on the base (4). Two second adjustment bolts (9) are respectively threadedly mounted on each second adjustment plate (7), and the two second adjustment bolts (9) are respectively located on both sides of the bottom plate (6), and one end of each second adjustment bolt (9) can abut against one end of the bottom plate (6).

6. The motor rotor fault simulation platform according to claim 1, characterized in that: A collector ring (12) is sleeved on the periphery of the central shaft (2), and the rotor (11) is connected to a power source through the collector ring (12).

7. The motor rotor fault simulation platform according to claim 6, characterized in that: A balancing disk (13) is sleeved on the periphery of the central shaft (2), and the collector ring (12) is located between the rotor (11) and the balancing disk (13).

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