Rotor dynamic balance adjusting device motor

Abstract

The utility model relates to the technical field of rotors, and discloses a rotor dynamic balance adjusting device motor, which comprises a central shaft, the exterior of the central shaft is cylindrical, a hole is formed in the center of the interior of the central shaft, rotors are arranged at the two ends of the exterior of the central shaft, and a plurality of tooth blocks are arranged outside the rotors. A plurality of holes with different sizes are formed in the outer surface of the rotor, the damping assembly is installed at one end of the outer portion of the center shaft and used for reducing vibration when the rotor moves so as to better adjust balance, and a fixing rod is arranged in the center of the inner portion of the center shaft. Vibration generated in the high-speed running process of the rotor can be effectively absorbed and buffered through cooperative operation of the control connector, the threaded rod, the stop block, the spring, the limiting ring, the fixing rod and other components, vibration energy can be consumed through elastic deformation of the spring, an operator can flexibly adjust the pre-tightening force of the spring according to the actual working condition, and the working efficiency is improved. And the damping effect is accurately controlled.

Description

Technical Field

[0001] This utility model relates to the field of rotor technology, specifically to a rotor dynamic balancing adjustment device motor. Background Technology

[0002] In modern industrial production and the operation of various electromechanical equipment, the motor is the core power source, and its operational stability and reliability are of paramount importance. The motor rotor, as the key rotating component of the motor, directly determines the overall performance of the motor through its dynamic balance. If the rotor's dynamic balance is poor, it will generate severe vibrations when rotating at high speeds, which will not only significantly shorten the motor's service life and increase equipment maintenance costs, but may also cause a series of problems such as excessive noise and fluctuations in output power. In severe cases, it may even threaten the safe operation of the entire equipment system.

[0003] Although traditional motor rotors have adopted various measures to optimize dynamic balance during design and manufacturing, the dynamic balance of the rotor is easily disrupted due to limitations in manufacturing processes, uneven material quality, and the effects of wear and corrosion during long-term operation. Existing dynamic balance adjustment methods are either complex to operate and have limited precision, making it difficult to meet the increasingly demanding equipment operation requirements; or they are designed for specific types of motor rotors, resulting in poor versatility and making them unsuitable for a wide range of motors of different specifications and models.

[0004] Publication number: CN204156688U. In this utility model, the aforementioned pressure seat is set at the lower part of the movable seat. The movable seat moves downward to drive the pressure seat to press against the motor rotor, thus completing the pressing shaft. This utility model has a simple structure, is easy and quick to assemble and disassemble, adapts to pressing shafts of motor rotors of different specifications, and adopts a lifting type pressing shaft.

[0005] To address the aforementioned issues, traditional motors experience vibrations when the rotor operates at excessive speed, which can negatively impact performance. Therefore, we propose a rotor dynamic balancing device for motors. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a rotor dynamic balancing adjustment device motor, which solves the aforementioned problems.

[0007] To achieve the aforementioned objectives, this utility model provides the following technical solution: a rotor dynamic balancing adjustment device motor, comprising a central shaft, the outer surface of which is cylindrical, and a hole is formed in the center of the inner surface of the central shaft. Rotors are provided at both ends of the outer surface of the central shaft, and multiple tooth blocks are provided on the outer surface of the rotors. The outer surface of the rotors also has numerous holes of varying sizes. The device further includes:

[0008] The shock absorption assembly is installed on the outside of one end of the central shaft to reduce vibration of the rotor during movement, thereby better adjusting the balance. A fixing rod is set in the center of the inside of the central shaft.

[0009] Preferably, a fixing rod is fixedly connected to the internal hole of the central shaft, and rotors are fixedly connected to both ends of the external side of the central shaft. A hole is opened in the center of the external side of the rotor, and the internal rotation of the rotor is rotatably connected to the outside of the fixing rod.

[0010] Preferably, a connecting block is fixedly connected to the center of the outside of the rotor, and a fixing ring is fixedly connected to the outside of the connecting block. The fixing ring has a groove inside, and multiple rollers are fixedly connected inside the groove.

[0011] Preferably, the outer surface of the roller is spherical, and a sleeve is fixedly connected inside the fixing ring. A hole is opened in the center of the sleeve, and the inside of the sleeve is fixedly connected to the outside of the fixing rod.

[0012] Preferably, the shock absorption assembly includes a control connector, a threaded rod, a stop block, a spring, a limiting ring, and a fixing rod. The fixing rod is externally fixedly connected to the limiting ring, and a spring is sleeved on one end of the fixing rod. The fixing rod is externally fixedly connected to the stop block, and the stop block has internal threads. The threaded rod is internally threaded and connected to the threaded rod. The control connector is threaded to the outer end of the threaded rod away from the stop block.

[0013] Preferably, one end of the spring is fixedly connected to the outside of the limiting ring, and the other end is fixedly connected to the outside of the stop block, and a threaded rod is fixedly connected to the top of the fixed rod.

[0014] Compared with the prior art, this utility model provides a rotor dynamic balancing adjustment device motor, which has the following beneficial effects:

[0015] 1. This rotor dynamic balancing adjustment device for motors, through the coordinated operation of components such as control joints, threaded rods, stops, springs, limit rings, and fixing rods, can effectively absorb and buffer the vibration generated by the rotor during high-speed operation. The elastic deformation of the springs can dissipate vibration energy, and in conjunction with the adjustment mechanism of the stops and threaded rods, operators can flexibly adjust the preload of the springs according to actual working conditions, thereby precisely controlling the vibration reduction effect.

[0016] 2. The rotor dynamic balancing adjustment device for motor has a rotor connected to a fixed ring via a connecting block. The rotor is internally rotatably connected to a fixed rod, and externally, it is engaged with the fixed ring via rollers, making the rotor rotate more smoothly and reducing dynamic balance interference caused by friction and structural deviations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the limiting ring of this utility model;

[0019] Figure 3 This is a schematic diagram of the rotor of this utility model.

[0020] In the diagram: 1. Central shaft; 2. Fixed ring; 3. Rotor; 4. Connecting block; 5. Roller; 6. Sleeve; 7. Control connector; 8. Threaded rod; 9. Stop block; 10. Spring; 11. Limiting ring; 12. Fixed rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-3 A rotor dynamic balancing adjustment device motor includes a central shaft 1, the outer surface of which is cylindrical, and a hole is formed in the center of the inner surface of the central shaft 1. Rotors 3 are provided at both ends of the outer surface of the central shaft 1, and multiple tooth blocks are provided on the outer surface of the rotors 3. The outer surface of the rotors 3 has many holes of different sizes. The device also includes:

[0023] The shock absorption assembly is installed on the outer end of the central shaft 1 to reduce vibration of the rotor during movement, thereby better adjusting the balance. A fixing rod 12 is provided in the center of the interior of the central shaft 1.

[0024] Furthermore, a fixing rod 12 is fixedly connected to the internal hole of the central shaft 1, and rotors 3 are fixedly connected to both ends of the external side of the central shaft 1. A hole is opened in the center of the external side of the rotor 3, and the internal rotation of the rotor 3 is rotatably connected to the outside of the fixing rod 12.

[0025] Furthermore, a connecting block 4 is fixedly connected to the center of the outside of the rotor 3, and a fixing ring 2 is fixedly connected to the outside of the connecting block 4. A groove is opened inside the fixing ring 2, and multiple rollers 5 are fixedly connected inside the groove.

[0026] Furthermore, the outer surface of the roller 5 is spherical, and the inner surface of the fixing ring 2 is fixedly connected to the sleeve 6, and the inner surface of the sleeve 6 is provided with a hole in the center, and the inner surface of the sleeve 6 is fixedly connected to the outside of the fixing rod 12.

[0027] Furthermore, the shock absorption assembly includes a control connector 7, a threaded rod 8, a stop block 9, a spring 10, a limiting ring 11, and a fixing rod 12. The fixing rod 12 is externally fixedly connected to the limiting ring 11, and the spring 10 is sleeved on one external end of the fixing rod 12. The stop block 9 is externally fixedly connected to the fixing rod 12, and the stop block 9 is internally threaded. The threaded rod 8 is internally threaded to the stop block 9, and the control connector 7 is threaded to the external end of the threaded rod 8 away from the stop block 9.

[0028] Furthermore, one end of the spring 10 is fixedly connected to the outside of the limiting ring 11, and the other end is fixedly connected to the outside of the stop block 9, and a threaded rod 8 is fixedly connected to the top of the fixed rod 12.

[0029] Structural Description: Central Axis 1

[0030] Location and function: As the core support structure of the entire device, it is located at the center of the motor. It not only provides the foundation for the installation of other components, but also ensures that the rotor can rotate stably around its axis. It is a key component for transmitting power and maintaining the stability of the overall structure. Structural features: The outside is cylindrical. This shape design helps to reduce air resistance and friction during rotation and ensures smooth rotation. There is a hole in the center of the inside. This hole is used to fix and connect with the fixing rod 12, so that the two form a stable whole. The rotor 3 is firmly fixed at both ends of the outer side of the central shaft, providing stable support for the rotation of the rotor.

[0031] Fixed ring 2

[0032] Location and function: Connected to rotor 3 via connecting block 4, located outside rotor, the fixing ring mainly serves to assist in supporting rotor and enhance rotor rotational stability. It also provides installation positions for roller 5 and sleeve 6. Structural features: It has a ring structure with grooves inside. The size and shape of the grooves are adapted to roller 5, which can accommodate multiple rollers and allow them to roll flexibly. In addition, the fixing ring is also fixedly connected to sleeve 6 inside, together providing stable constraints for rotor rotation.

[0033] Rotor 3

[0034] Location and Function: As a key component for energy conversion in the motor, it is located at both ends of the central shaft 1. During motor operation, the rotor interacts with the external magnetic field to convert electrical energy into mechanical energy, driving the load. Structural Features: Multiple tooth blocks are set on the outside, which play an important role in the electromagnetic induction process of the motor and generate torque by interacting with the stator magnetic field. Many holes of different sizes are opened on the outer surface of the rotor. These holes are used to adjust the mass distribution of the rotor. When the rotor is dynamically unbalanced, the dynamic balance can be optimized by adding or removing material in the holes. A hole is opened in the center of the rotor, through which it is rotatably connected to the outside of the fixed rod 12, realizing free rotation around the fixed rod. At the same time, the center of the rotor is connected to the fixed ring 2 through the connecting block 4, which enhances the stability during rotation.

[0035] Connector Block 4

[0036] Location and function: One end of the connecting block is tightly fixed to the outside center of the rotor 3, and the other end is firmly connected to the fixed ring 2. Its main function is to establish the connection between the rotor and the fixed ring, so as to ensure that the two can work together during the rotor rotation and maintain the stability of the structure. Structural features: Its shape and size are designed according to the connection requirements between the rotor and the fixed ring. It usually has high strength and rigidity to withstand the various forces generated during the rotor rotation.

[0037] 5 rollers

[0038] Position and function: Installed in the groove inside the fixed ring 2, the rollers reduce friction and provide auxiliary guidance when the rotor rotates, allowing the rotor to rotate more smoothly around the central axis. At the same time, they help to disperse the pressure generated during rotor rotation and improve the stability of the overall structure. Structural features: The outer shape is spherical. This shape results in low friction when rolling in the groove of the fixed ring, which can flexibly adapt to small position changes during rotor rotation. Multiple rollers are evenly distributed in the groove of the fixed ring, providing stable support for the rotor.

[0039] Sleeve 6

[0040] Position and function: Located inside the fixed ring 2 and sleeved on the outside of the fixed rod 12, the main function of the sleeve is to further enhance the stability and coaxiality of the rotor during rotation, ensuring that the rotor rotates precisely around the central axis. At the same time, it provides connection and positioning between the fixed ring and the fixed rod. Structural features: The inner center has a hole that fits the fixed rod 12 and is tightly connected to the fixed rod to ensure that the relative position between the two is fixed. The sleeve and the fixed ring are firmly fixed together to form a stable support structure that constrains the rotation trajectory of the rotor.

[0041] Control connector 7

[0042] Location and function: Located at the end of the threaded rod 8 furthest from the stop block 9, the control connector provides an easy-to-operate interface for the operator to easily rotate the threaded rod, thereby adjusting the shock-absorbing components. Structural features: It usually has a shape that is easy to hold and operate, such as with a certain texture or protrusion, to increase the friction between the operator's hand and the control connector, so as to facilitate precise control of the rotation of the threaded rod. Its internal thread structure is set with matching threaded rod to ensure a stable connection with the threaded rod and to achieve smooth rotation adjustment.

[0043] Threaded rod 8

[0044] Position and function: One end is threaded to the control connector 7, and the other end is threaded to the stop 9. The threaded rod plays the role of adjusting the position of the stop in the shock absorption assembly, thereby adjusting the compression degree of the spring 10 and achieving precise control of the shock absorption effect. Structural features: The surface is machined with precise threads. The pitch and precision of the threads determine the sensitivity and accuracy of the adjustment. The length and diameter of the threaded rod are determined according to the design requirements of the entire shock absorption assembly. It must ensure sufficient strength to withstand the force during the adjustment process and meet the adjustment range requirements.

[0045] Block 9

[0046] Location and function: Located between spring 10 and threaded rod 8, the stop block moves axially along fixed rod 12 when the threaded rod rotates via a threaded connection with the threaded rod. The function of the stop block is to change the degree of spring compression, thereby adjusting the spring preload to adapt to different vibration conditions. Structural features: The internal threads are matched with the threaded rod to ensure a tight fit and smooth movement. The shape and size of the stop block need to consider the connection method with the spring and the movement space on the fixed rod. It is usually designed as a block structure with a certain thickness and diameter to ensure sufficient strength to withstand the spring force.

[0047] Spring 10

[0048] Position and function: Sleeve over the outside of the fixed rod 12, one end is fixedly connected to the limiting ring 11, and the other end is connected to the stop block 9. The spring plays a key role in absorbing and buffering vibration energy in the shock absorption assembly. When the rotor vibrates, the spring reduces the transmission of vibration through its own elastic deformation, reducing the impact of vibration on other parts of the motor. Structural features: It has a suitable elastic coefficient, which is selected according to the working conditions of the motor and the expected shock absorption effect. The spring material is usually selected from high-strength, fatigue-resistant metal materials to ensure that it can stably play a shock absorption role during long-term use. Its length and diameter are designed according to the size of the fixed rod and the overall space of the shock absorption assembly to ensure that it can provide sufficient shock absorption capacity in a limited space.

[0049] Limiting ring 11

[0050] Position and function: Fixedly connected to the outside of the fixed rod 12, providing a fixed support point for the spring 10, limiting the range of movement of the spring in the axial direction, and ensuring the stability and reliability of the spring during operation. Structural features: Usually a ring structure, the inner diameter of which is adapted to the outer diameter of the fixed rod. It is firmly fixed to the fixed rod by welding, interference fit, etc. The outer diameter of the limiting ring needs to be matched with the inner diameter of the spring to ensure that the spring can be accurately installed between the limiting ring and the stop and perform stable telescopic movement between the two.

[0051] Fixed rod 12

[0052] Position and function: Fixed in the central hole inside the central shaft 1, running through the entire device, providing a central axis for the rotation of the rotor 3, and serving as a support structure for the damping assembly, connecting and positioning other damping components. Structural features: It has high strength and rigidity to ensure that it can withstand various forces generated by the rotor rotation during motor operation, while maintaining its own shape and position stability. Its length is designed according to the length of the central shaft and the installation requirements of each component. Its diameter is adapted to the size of the internal hole of the central shaft and other components that cooperate with it, ensuring the tightness and stability of the connection.

[0053] Instructions for use

[0054] The rotor dynamic balancing adjustment device motor uses a central shaft 1 as its core support structure, and a fixing rod 12 is fixedly connected to the center of the central shaft 1. The rotor 3 is firmly fixed at both ends of the external structure. The rotor 3 can rotate freely around the fixed rod 12 inside. This design provides a stable basic structure for the rotation of the rotor. The center of the rotor 3 is connected to the fixed ring 2 through the connecting block 4. Multiple rollers 5 installed in the groove inside the fixed ring 2 play an auxiliary support and guiding role when the rotor rotates, reducing the friction between the rotor and the fixed ring and ensuring the smoothness of the rotor rotation. At the same time, the sleeve 6 inside the fixed ring 2 is tightly fitted on the outside of the fixed rod 12, further enhancing the stability and coaxiality of the entire structure and ensuring the smoothness of the rotor rotation. The vibration damping component consists of a control connector 7, a threaded rod 8, a stop block 9, a spring 10, a limit ring 11, and a fixed rod 12. When the motor is running, the vibration generated by the rotor will be transmitted to the vibration damping component through the central shaft. When vibration occurs, the fixed rod 12 acts as a force transmission component, and the spring 10 on it bears the brunt. One end of the spring 10 is fixed to the limit ring 11, and the other end is connected to the stop block 9. Vibration causes the spring 10 to compress or stretch, absorbing vibration energy through elastic deformation, thereby reducing the vibration amplitude. The operator can rotate the control joint 7 to drive the threaded rod 8 to rotate. Since the stop block 9 has threads that cooperate with the threaded rod 8, the rotation of the threaded rod 8 will cause the stop block 9 to move along the axial direction of the fixed rod 12, thereby adjusting the compression degree of the spring 10 and changing the preload of the spring 10. According to the actual operating conditions of the motor and the vibration situation, the spring preload can be flexibly adjusted to achieve precise control of the vibration reduction effect and ensure that the rotor can effectively reduce vibration under different operating conditions.

[0055] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotor dynamic balancing adjustment device motor, comprising a central shaft (1), the outer surface of which is cylindrical, and a hole is provided in the center of the inner surface of the central shaft (1), and rotors (3) are provided at both ends of the outer surface of the central shaft (1), and multiple tooth blocks are provided on the outer surface of the rotors (3), and many holes of different sizes are provided on the outer surface of the rotors (3), characterized in that: Also includes: The shock-absorbing assembly is installed on the outer end of the central shaft (1) to reduce vibration of the rotor during movement and thus better adjust the balance. A fixing rod (12) is provided in the center of the interior of the central shaft (1).

2. The rotor dynamic balancing adjustment device motor according to claim 1, characterized in that: The central shaft (1) has a fixed rod (12) fixedly connected to its internal hole, and rotors (3) are fixedly connected to both ends of the central shaft (1). A hole is opened in the center of the outside of the rotor (3), and the inside of the rotor (3) is rotatably connected to the outside of the fixed rod (12).

3. The rotor dynamic balancing adjustment device motor according to claim 1, characterized in that: A connecting block (4) is fixedly connected to the center of the outside of the rotor (3), and a fixing ring (2) is fixedly connected to the outside of the connecting block (4). A groove is opened inside the fixing ring (2), and multiple rollers (5) are fixedly connected inside the groove.

4. The rotor dynamic balancing adjustment device motor according to claim 3, characterized in that: The outer surface of the roller (5) is spherical, and a sleeve (6) is fixedly connected inside the fixing ring (2). A hole is opened in the center of the sleeve (6), and the inside of the sleeve (6) is fixedly connected to the outside of the fixing rod (12).

5. The rotor dynamic balancing adjustment device motor according to claim 1, characterized in that: The shock absorption assembly includes a control connector (7), a threaded rod (8), a stop block (9), a spring (10), a limiting ring (11), and a fixing rod (12). The fixing rod (12) is fixedly connected to the outside of the limiting ring (11), and the spring (10) is sleeved on one end of the outside of the fixing rod (12). The stop block (9) is fixedly connected to the outside of the fixing rod (12), and the inside of the stop block (9) is provided with threads. The threaded rod (8) is connected to the inside of the stop block (9), and the control connector (7) is threaded to the outside of the threaded rod (8) away from the stop block (9).

6. A rotor dynamic balancing adjustment device motor according to claim 5, characterized in that: One end of the spring (10) is fixedly connected to the outside of the limiting ring (11), and the other end is fixedly connected to the outside of the stop block (9). A threaded rod (8) is fixedly connected to the top of the fixed rod (12).

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