Dynamic balance structure of motor rotor

Abstract

The utility model discloses a dynamic balance structure of a motor rotor, which comprises a stator body and a shell, and further comprises a distance measurement positioning port, the distance measurement positioning port is arranged on one side of the interior of the stator body fixed on the inner wall of the shell, and the interior of the stator body is movably connected with a rotor body; and the water storage box is installed on one side of the shell, and a battery box and a PLC are installed on one side of the water storage box. The laser distance measuring sensor and the like are installed, so that when the device is used, the battery box is installed on one side of the water storage box, the rechargeable lithium battery is installed in the battery box, and the laser distance measuring sensor, the electromagnetic valve, the micro water pump and the PLC are electrically connected with the battery box through wires; in this way, the electronic assembly part of the dynamic balance adjusting structure can achieve independent and flexible power supply, a user only needs to replace or charge the rechargeable lithium battery in the battery box every time, and convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor rotor structures, in particular to a dynamic balancing structure of a motor rotor. Background Art

[0002] The motor rotor is the core component of the rotating mechanism of equipment such as motors, generators and gas turbines. The motor rotor is mainly composed of permanent magnets, shaft cores and bearings. A dynamic balancing structure is often also set in the motor rotor. Through the design and implementation of this structure, vibration and noise can be effectively reduced, the equipment life can be extended, and the overall performance and reliability can be improved.

[0003] Due to the dynamic balancing structure of the motor rotor, it is often necessary to pre-add counterweights to the rotor structure to compensate for the lateral deviation problem during rotor rotation and ensure that it is in the middle position inside the stator. However, this result is fixed and is not easy to meet the different lateral deviation problems caused by the rotor connecting products of different weights, and the different required counterweight positions and masses. It can no longer meet people's needs. Therefore, we propose a new dynamic balancing structure for motor rotors to solve the above-mentioned defects and realize the functions of intelligent monitoring of the lateral deviation status and intelligent adjustment and correction of the required counterweight position and mass. Utility Model Content

[0004] The purpose of the present invention is to provide a dynamic balancing structure for a motor rotor to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: a dynamic balancing structure for a motor rotor, comprising a stator body and a housing, and

[0006] A distance measuring and positioning opening is provided on one side of the interior of a stator body fixed to the inner wall of the housing, and the interior of the stator body is movably connected to the rotor body;

[0007] A water storage box is installed on one side of the housing, a battery box and a PLC controller are installed on one side of the water storage box, and a micro water pump is installed on the other side of the water storage box;

[0008] A counterweight correction block, the counterweight correction block is evenly fixed to the outer wall of the rotor body, the output end of the micro water pump is connected to a main water pipe, a rotating water pipe joint is installed between the main water pipe and the micro water pump, the main water pipe is sequentially connected to branch water pipes matching the counterweight correction block, and a solenoid valve is installed on the branch water pipe;

[0009] Laser distance measuring sensors matching the distance measuring positioning ports are evenly installed on one side of the rotor body.

[0010] Furthermore, there are four counterweight correction blocks, which are arranged at equal angles on the outer wall of the rotor body.

[0011] Furthermore, the counterweight correction block has a hollow structure, and the interior of the counterweight correction block is connected to the interior of the branch water pipe.

[0012] Furthermore, the top and bottom ends of the water storage box are both welded with connecting arms that are mounted to the outer shell by screws.

[0013] Furthermore, a rechargeable lithium battery is installed inside the battery box.

[0014] Furthermore, the laser ranging sensor, solenoid valve, micro water pump and PLC controller are electrically connected via wires and a battery box respectively.

[0015] Furthermore, four branch water pipes are provided, and the branch water pipes are arranged at equal angles on one side of the rotor body.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The dynamic balancing structure of the motor rotor optimizes its own performance by installing a rotor body, etc. On the one hand, the rotating magnetic field generated by the stator body interacts with the conductor in the rotor body, causing the rotor body to be subjected to a torque, thereby starting to rotate. During this process, the four laser ranging sensors installed on the outer wall of the tail end of the rotor body and arranged at equal angles will always intelligently monitor the distance between the distance measurement positioning port at the tail end of the shell, and then send the measured data to the PLC controller. After analysis and processing, if it is found that the four sets of data values ​​are different, the PLC controller will control the micro water pump and the solenoid valve on the branch water pipe corresponding to the laser ranging sensor with the largest measured value to open. The liquid used for counterweight inside the water storage box is evenly introduced into the corresponding counterweight correction block through the opened branch water pipe, which can compensate for the counterweight of the rotor body, effectively solve the side deviation problem of the rotor body, and achieve a better dynamic balancing effect. On the other hand, a battery box is installed on one side of the water storage box, and a rechargeable lithium battery is installed inside the battery box. The laser ranging sensor, solenoid valve, micro water pump and PLC controller are electrically connected to the battery box through wires respectively. This allows the electronic component part of the dynamic balancing adjustment structure to be independently and flexibly powered. The user only needs to replace or charge the rechargeable lithium battery inside the battery box each time, which improves the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0019] Figure 2This is a rear view structural diagram of the utility model;

[0020] Figure 3 This is a side view of the structure of the utility model;

[0021] Figure 4 This is a partial cross-sectional structural diagram of the rotor body of the utility model from the rear view.

[0022] In the figure: 1. Stator body; 2. Distance measurement positioning port; 3. Rotor body; 4. Counterweight correction block; 5. Housing; 6. Micro water pump; 7. Battery box; 8. PLC controller; 9. Water storage box; 10. Connecting arm; 11. Rotating water pipe joint; 12. Main water pipe; 13. Branch water pipe; 14. Laser ranging sensor; 15. Solenoid valve. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0025] In the present invention, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings, or with reference to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0026] See also Figure 1-4 The present invention provides an embodiment of a motor rotor dynamic balancing structure, comprising a stator body 1 and a housing 5, and further comprising

[0027] The distance measuring and positioning opening 2 is provided on one side of the stator body 1 fixed to the inner wall of the housing 5, and the rotor body 3 is movably connected to the inside of the stator body 1;

[0028] A water storage box 9 is installed on one side of the housing 5. A battery box 7 and a PLC controller 8 are installed on one side of the water storage box 9, and a micro water pump 6 is installed on the other side of the water storage box 9;

[0029] The counterweight correction block 4 is evenly fixed to the outer wall of the rotor body 3. The output end of the micro water pump 6 is connected to the main water pipe 12. A rotating water pipe joint 11 is installed between the main water pipe 12 and the micro water pump 6. The main water pipe 12 is sequentially connected to a branch water pipe 13 that matches the counterweight correction block 4. A solenoid valve 15 is installed on the branch water pipe 13;

[0030] Laser distance measuring sensors 14 matching the distance measuring positioning openings 2 are evenly installed on one side of the rotor body 3;

[0031] There are four counterweight correction blocks 4, which are arranged at equal angles on the outer wall of the rotor body 3;

[0032] The counterweight correction block 4 is hollow, and the interior of the counterweight correction block 4 is connected to the interior of the branch water pipe 13;

[0033] The top and bottom ends of the water storage box 9 are both welded with connecting arms 10 that are mounted to the housing 5 by screws;

[0034] During use, the rotating magnetic field generated by the stator body 1 interacts with the conductor in the rotor body 3, causing the rotor body 3 to be subjected to a torque, thereby starting to rotate. During this process, the four laser ranging sensors 14 arranged at equal angles and installed on the outer wall of the tail end of the rotor body 3 will always intelligently monitor the distance between the distance measurement positioning port 2 at the tail end of the shell 5, and then send the measured data to the PLC controller 8. After analysis and processing, when it is found that the four sets of data values ​​are different, the PLC controller 8 will control the micro water pump 6 and the solenoid valve 15 on the branch water pipe 13 corresponding to the laser ranging sensor 14 with the largest measured value to open, and evenly introduce the liquid used for counterweight in the water storage box 9 into the corresponding counterweight correction block 4 through the opened branch water pipe 13. This can compensate for the counterweight of the rotor body 3, effectively solve the lateral deviation problem of the rotor body 3, and achieve a better dynamic balancing effect.

[0035] A rechargeable lithium battery is installed inside the battery box 7;

[0036] The laser distance sensor 14, the solenoid valve 15, the micro water pump 6 and the PLC controller 8 are electrically connected to the battery box 7 through wires respectively;

[0037] Four branch water pipes 13 are provided, and the branch water pipes 13 are arranged at equal angles on one side of the rotor body 3 .

[0038] The working principle of the present invention is as follows: when in use, the rotating magnetic field generated by the stator body 1 interacts with the conductor in the rotor body 3, causing the rotor body 3 to be subjected to a torque, thereby starting to rotate. During this process, the four laser ranging sensors 14 arranged at equal angles and installed on the outer wall of the tail end of the rotor body 3 will always intelligently monitor the distance between the ranging positioning port 2 at the tail end of the shell 5, and then send the measured data to the PLC controller 8. After analysis and processing, if it is found that the four sets of data values ​​are different, the PLC controller 8 will control the micro water pump 6 and the electromagnetic valve 15 on the branch water pipe 13 corresponding to the laser ranging sensor 14 with the largest measured value to open, and the water storage box 9 inside for the distribution of the water will be filled with water. The heavy liquid is evenly introduced into the corresponding counterweight correction block 4 through the opened branch water pipe 13, which can compensate for the counterweight of the rotor body 3, effectively solve the lateral deviation problem of the rotor body 3, and achieve a better dynamic balancing effect. At the same time, a battery box 7 is installed on one side of the water storage box 9, and a rechargeable lithium battery is installed inside the battery box 7, and the laser ranging sensor 14, the solenoid valve 15, the micro water pump 6 and the PLC controller 8 are electrically connected to the battery box 7 through wires, so that the electronic component part of the dynamic balancing adjustment structure can be independently and flexibly powered. The user only needs to replace or charge the rechargeable lithium battery inside the battery box 7 each time, which improves the convenience of operation.

[0039] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0040] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0041] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0042] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A dynamic balancing structure for a motor rotor, comprising a stator body (1) and a housing (5), characterized in that: Also includes A distance measuring and positioning opening (2), the distance measuring and positioning opening (2) being arranged on one side of the interior of a stator body (1) fixed to the inner wall of a housing (5), the interior of the stator body (1) being movably connected to a rotor body (3); A water storage box (9), the water storage box (9) being mounted on one side of the housing (5), a battery box (7) and a PLC controller (8) being mounted on one side of the water storage box (9), and a micro water pump (6) being mounted on the other side of the water storage box (9); A counterweight correction block (4), the counterweight correction block (4) being evenly fixed to the outer wall of the rotor body (3), the output end of the micro water pump (6) being connected to a main water pipe (12), a rotating water pipe joint (11) being installed between the main water pipe (12) and the micro water pump (6), the main water pipe (12) being sequentially connected to branch water pipes (13) matching the counterweight correction block (4), and a solenoid valve (15) being installed on the branch water pipe (13); Laser distance measuring sensors (14) matching the distance measuring positioning openings (2) are evenly installed on one side of the rotor body (3).

2. The dynamic balancing structure of a motor rotor according to claim 1, characterized in that: Four counterweight correction blocks (4) are provided, and the counterweight correction blocks (4) are arranged at equal angles on the outer wall of the rotor body (3).

3. The dynamic balancing structure of a motor rotor according to claim 1, characterized in that: The counterweight correction block (4) has a hollow structure, and the interior of the counterweight correction block (4) is connected to the interior of the branch water pipe (13).

4. The dynamic balancing structure of a motor rotor according to claim 1, characterized in that: The top and bottom ends of the water storage box (9) are both welded with connecting arms (10) which are mounted to the outer shell (5) by screws.

5. The dynamic balancing structure of a motor rotor according to claim 1, characterized in that: A rechargeable lithium battery is installed inside the battery box (7).

6. The dynamic balancing structure of a motor rotor according to claim 1, characterized in that: The laser distance sensor (14), the electromagnetic valve (15), the micro water pump (6) and the PLC controller (8) are electrically connected via wires and a battery box (7).

7. The dynamic balancing structure of a motor rotor according to claim 1, characterized in that: Four branch water pipes (13) are provided, and the branch water pipes (13) are arranged at equal angles on one side of the rotor body (3).

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