Rotor dynamic balancing weight method, device and electronic equipment

Abstract

This application relates to the field of rotor balancing technology, and in particular to a rotor dynamic balancing counterweight method and apparatus, which involves obtaining the initial imbalance of the rotor; calculating the number of counterweight blocks to be placed on the rotor based on the initial imbalance; and installing the counterweight blocks on the rotor to complete the rotor dynamic balancing counterweight. This application helps to improve the efficiency of rotor dynamic balancing counterweight.

Description

Technical Field

[0001] This application relates to the field of rotor balancing technology, and in particular to a rotor dynamic balancing counterweight method, device and electronic equipment. Background Technology

[0002] In rotating machinery systems, the rotor is a crucial component. Vibration caused by rotor imbalance is a primary cause of vibration, noise, and mechanical failure in mechanical equipment. Rotor imbalance accounts for approximately 60% of all mechanical failures. Therefore, dynamic balancing testing and correction of rotating machinery rotors are of paramount importance in reducing mechanical failures and ensuring their safe and stable operation.

[0003] In related technologies, the main method to solve the rotor dynamic balance problem is to test with a balancing machine, use the weight method or influence coefficient method to determine the position and size of the balance block, and then manually weld the balance block to the designated position on the rotor while the rotor is stopped. This method is not only not very accurate, but also requires a large number of balance blocks, resulting in low efficiency.

[0004] Therefore, there is an urgent need for a rotor dynamic balancing counterweight method, device, and electronic equipment. Summary of the Invention

[0005] To address the problem of low efficiency in rotor dynamic balancing counterweights, this application provides a rotor dynamic balancing counterweight method and apparatus.

[0006] The first aspect of this application provides a rotor dynamic balancing counterweight method, which adopts the following technical solution and includes the following steps:

[0007] Obtain the initial imbalance of the rotor;

[0008] Based on the initial imbalance, calculate the number of counterweights to be placed on the rotor;

[0009] The weighted counterweight is installed on the rotor to complete the dynamic balance of the rotor.

[0010] By adopting the above technical solution, the number of weighted balancing blocks that need to be set on the rotor can be directly calculated based on the measured initial rotor imbalance, without having to perform multiple real-time correction calculations on the current rotor. This allows for the fixing of balancing blocks onto the rotor to achieve rotor dynamic balance, thereby achieving the effect of quickly adjusting rotor dynamic balance.

[0011] Optionally, the number of equivalent balance blocks is obtained based on the radian value of the equivalent balance block and the radian value of the weighted balance block, wherein the equivalent balance block is converted from the initial imbalance amount.

[0012] By adopting the above technical solution, the actual number of counterweights that need to be installed on the rotor can be quickly calculated, which can quickly simulate the initial balance of the rotor and reduce the number of times the counterweights installed on the rotor are adjusted, so as to achieve the purpose of quickly adjusting the dynamic balance of the rotor.

[0013] Optionally, based on the ratio of the radian value of the equivalent balancing block to the radian value of the weighted balancing block;

[0014] The number of the weighted balancing blocks is obtained by rounding up the ratio, wherein the number of the weighted balancing blocks is an even number.

[0015] By adopting the above technical solution, selecting an even number of weighted balancing blocks is beneficial for symmetrically decomposing the equivalent balancing blocks, which facilitates the allocation of the installation positions of the weighted balancing blocks, thereby simplifying the process of allocating the weighted balancing blocks to the rotor and improving the rotor dynamic balancing efficiency.

[0016] Optionally, the equivalent balance block is decomposed into a symmetric vector to form a first weighted balance block and a second weighted balance block;

[0017] The first and second weighted balance blocks are mounted on the rotor at a first rotation angle;

[0018] Obtain the first residual imbalance;

[0019] Determine whether the first residual imbalance is less than the preset imbalance.

[0020] If the first residual imbalance is less than or equal to the preset imbalance, the rotor dynamic balancing counterweight is completed.

[0021] By adopting the above technical solution, the equivalent balance block is decomposed into symmetrical vectors to obtain two symmetrical weighted balance blocks. The two weighted balance blocks are then installed on the rotor at the first rotation angle. The balancing machine then checks whether the current residual imbalance meets the requirements. Only the movement arc of the weighted balance blocks needs to be calculated, thereby reducing the workload of calculation.

[0022] Optionally, if the first residual imbalance is greater than the preset imbalance, the first weighted balancing block is rotated at a second rotation angle.

[0023] Obtain the second residual imbalance;

[0024] Determine whether the second residual imbalance is less than the preset imbalance;

[0025] If the second residual imbalance is less than the preset imbalance, the rotor dynamic balancing counterweight is completed.

[0026] By adopting the above technical solution, after the rotor still has a large residual imbalance after the installation of the counterweight, the rotor imbalance can be adjusted by moving the position of a single counterweight on the rotor. At the same time, by using only one counterweight as the correction target, the rotor imbalance can be adjusted better.

[0027] Optionally, the formula for calculating the radian value of the equivalent balancing block is:

[0028]

[0029] Where 2θ is the radian value of the equivalent balancing block, R1 is the equivalent outer radius of the weighted balancing block in the slot, R2 is the equivalent inner radius of the weighted balancing block in the slot, H is the thickness of the weighted balancing block, ρ is the density of the weighted balancing block, and M0 is the initial imbalance of the rotor.

[0030] Optionally, the formula for calculating the first rotation angle is:

[0031]

[0032] Where N is the number of counterweights, R1 is the equivalent outer radius of the counterweight in the slot, R2 is the equivalent inner radius of the counterweight in the slot, H is the thickness of the counterweight, ρ is the density of the counterweight, 2α is the included angle corresponding to the equivalent counterweight, M0 is the initial imbalance of the rotor, A is the radian corresponding to one counterweight, and t is the radian corresponding to the first counterweight.

[0033] Optionally, the formula for calculating the second rotation angle is:

[0034]

[0035] Where N is the number of weighted balancing blocks, R1 is the equivalent outer radius of the weighted balancing block in the slot, R2 is the equivalent inner radius of the weighted balancing block in the slot, H is the thickness of the weighted balancing block, ρ is the density of the weighted balancing block, A is the radian corresponding to a balancing block, M1 is the residual unbalance after setting the weighted balancing block, β is the radian between the weighted balancing block and the zero-degree weighting, γ is the radian between the weighted balancing block and the zero-degree weighting after moving one side of the weighted balancing block, and t is the radian corresponding to the first weighted balancing block.

[0036] A second aspect of this application provides a rotor dynamic balancing counterweight device, the rotor dynamic balancing counterweight device comprising a data acquisition unit and a processing unit, wherein,

[0037] The acquisition unit is used to obtain the initial imbalance of the rotor;

[0038] The processing unit is used to calculate the number of counterweights to be placed on the rotor based on the initial imbalance, and to install the counterweights on the rotor to complete the rotor counterweighting.

[0039] By adopting the above technical solution, the number of weighted balancing blocks that need to be set on the rotor can be directly calculated based on the measured initial rotor imbalance, without having to perform multiple real-time correction calculations on the current rotor. This allows for the fixing of balancing blocks onto the rotor to achieve rotor dynamic balance, thereby achieving the effect of quickly adjusting rotor balance.

[0040] A third aspect of this application provides an electronic device including a processor, a memory, a user interface, and a network interface, wherein the memory is used to store instructions, the user interface and the network interface are used to communicate with other devices, and the processor is used to execute the instructions stored in the memory.

[0041] By adopting the above technical solution, instructions can be read quickly, and the response speed of electronic devices to instructions sent by the balancing machine can be improved.

[0042] In summary, this application includes at least one of the following beneficial technical effects:

[0043] 1. The rotor imbalance is corrected in two stages. First, the rotor imbalance is corrected by adjusting the number of counterweights installed on the rotor. Then, the rotor imbalance is corrected a second time by adjusting the movement arc of a single counterweight. This method allows for simple adjustment of the rotor imbalance without the need for multiple real-time correction calculations. It only requires a reasonable estimate of the installation position of the counterweights based on the deflection angle and number of rotor dynamic imbalance weights to ensure proper fixation of the counterweights on the rotor, thereby achieving rapid rotor balance adjustment. Attached Figure Description

[0044] Figure 1 This is a schematic flowchart of a rotor dynamic balancing counterweight method according to an embodiment of this application;

[0045] Figure 2 This is a flowchart illustrating the first dynamic balancing process provided in an embodiment of this application;

[0046] Figure 3 This is a schematic diagram of the second dynamic balancing process provided in an embodiment of this application;

[0047] Figure 4 This is a schematic diagram simulating the initial imbalance on the rotor according to an embodiment of this application;

[0048] Figure 5 This is a schematic diagram illustrating how the initial imbalance is converted into an equivalent balance block according to an embodiment of this application;

[0049] Figure 6 This is a schematic diagram of obtaining a weighted balance block by vector symmetry of an equivalent balance block according to an embodiment of this application;

[0050] Figure 7 This is a schematic diagram of the movement of the first weighted balancing block in an embodiment of this application;

[0051] Figure 8 This is a schematic diagram of the rotor dynamic balancing counterweight device provided in the embodiments of this application;

[0052] Figure 9 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application.

[0053] Explanation of reference numerals in the attached drawings: 1. Rotor; 2. Initial imbalance; 3. Equivalent balancing block; 4. Weighted balancing block; 41. First weighted balancing block; 42. Second weighted balancing block; 8. Rotor dynamic balancing counterweight device; 81. Acquisition unit; 82. Processing unit; 83. Transmitting unit; 9. Electronic equipment; 91. Processor; 92. Communication bus; 93. User interface; 94. Network interface; 95. Memory. Detailed Implementation

[0054] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0055] In the description of the embodiments of this application, the term "multiple" means two or more. For example, multiple systems means two or more systems, and multiple screen terminals means two or more screen terminals. Furthermore, the terms "first" and "firstly" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the indicated technical feature. Thus, a feature defined with "first" or "firstly" may explicitly or implicitly include one or more of that feature. The terms "comprising," "including," "having," and variations thereof all mean "including but not limited to," unless otherwise specifically emphasized.

[0056] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0057] refer to Figure 1 This application provides a method for dynamic balancing counterweights for a rotor 1, the method comprising steps S101-S103.

[0058] Step S101: Obtain the initial unbalance 2 of rotor 1.

[0059] In this step, the magnitude of the unbalance of rotor 1 is measured using a balancing machine.

[0060] Step S102: Calculate the number of weighted balancing blocks 4 set on rotor 1 based on the initial imbalance amount 2.

[0061] In one example, the number of weighted balance blocks 4 is obtained based on the radian value of the equivalent balance block 3 and the radian value of the weighted balance block 4. The equivalent balance block 3 is obtained by converting the initial unbalance amount 2.

[0062] In this embodiment, since the weight balancing block 4 needs to be installed in the annular groove opened on the rotor 1, the selected weight balancing block 4 is fan-shaped. The area of ​​the end of the weight balancing block 4 away from the annular groove is greater than the area of ​​the end of the weight balancing block 4 close to the annular groove, that is, the equivalent outer radius of the weight balancing block 4 is greater than the equivalent inner radius of the weight balancing block 4.

[0063] like Figure 4 and Figure 5 As shown, the initial imbalance 2 calculated by the balancing machine is displayed in the rotor 1 in the form of a sphere. Then, the initial imbalance 2 is converted into a fan-shaped ring with the same shape as the weighted balancing block 4, thereby ensuring that the actual weighted balancing block 4 installed on the rotor 1 has the same balancing effect as the simulated installation.

[0064] The formula for calculating the radian value of the equivalent balancing block 3 is as follows:

[0065]

[0066] 2θ is the radian value of the equivalent balance block 3, R1 is the equivalent outer radius of the weighted balance block 4 in the slot, R2 is the equivalent inner radius of the weighted balance block 4 in the slot, H is the thickness of the weighted balance block 4, ρ is the density of the weighted balance block 4, and M0 is the initial unbalance 2 of the rotor 1.

[0067] The ratio of the radian value of the equivalent balancing block 3 to the radian value of the weighted balancing block 4 is rounded up to obtain the number of weighted balancing blocks 4, wherein the number of weighted balancing blocks 4 is an even number.

[0068] Step S103: Install the weighted balance block 4 on the rotor 1 to complete the dynamic balance of the rotor 1.

[0069] Based on the measured initial imbalance 2 of rotor 1, the number of weighted balance blocks 4 that need to be set on rotor 1 can be directly calculated without having to perform real-time correction calculations on the current rotor 1 multiple times. This allows for the dynamic balancing of rotor 1 by fixing balance blocks on rotor 1, thereby achieving the effect of quickly adjusting the dynamic balance of rotor 1.

[0070] In this embodiment, reference Figure 2 The first dynamic balancing process includes steps S201 to S205.

[0071] Step S201: Decompose the equivalent balancing block 3 into a symmetric vector to form a first weighted balancing block 41 and a second weighted balancing block 42.

[0072] In this step, the simulated equivalent balance block 3 needs to be symmetrically vectorized along the zero-weight degree. After calculating the number of weight balance blocks 4 based on the actual initial unbalance of rotor 1, the weight balance blocks 4 are evenly distributed on both sides of the zero-weight degree, where the zero-weight degree is the axis where the upper unbalance of rotor 1 is located.

[0073] Step S202: The first weighted balancing block 41 and the second weighted balancing block 42 are mounted on the rotor 1 at a first rotation angle.

[0074] In this step, such as Figure 6 As shown, the first weighted balancing block 41 and the second weighted balancing block 42 are symmetrical about the zero-degree weighting, and the imbalance is adjusted by moving the first weighted balancing block 41 and the second weighted balancing block 42 simultaneously.

[0075] The formula for calculating the first rotation angle is:

[0076]

[0077] Where N is the number of weighted balancing blocks 4, R1 is the equivalent outer radius of the weighted balancing block 4 in the slot, R2 is the equivalent inner radius of the weighted balancing block 4 in the slot, H is the thickness of the weighted balancing block 4, ρ is the density of the weighted balancing block 4, 2α is the included angle corresponding to the equivalent balancing block 3, M0 is the initial imbalance amount 2 of the rotor 1, A is the radian corresponding to a weighted balancing block 4, and t is the radian corresponding to the first weighted balancing block 41.

[0078] Step S203: Obtain the first residual imbalance.

[0079] In this step, the first residual imbalance is obtained by a balancing machine.

[0080] Step S204: Determine whether the first residual imbalance is less than the preset imbalance.

[0081] Step S205: If the first residual imbalance is less than or equal to the preset imbalance, the dynamic balancing of rotor 1 is completed.

[0082] After the equivalent balance block 3 is symmetrically decomposed, two symmetrical weighted balance blocks 4 are obtained. The two weighted balance blocks 4 are installed on the rotor 1 at the first rotation angle. Then, the current residual imbalance is detected by the balancing machine to see if it meets the requirements. Only the movement arc of the weighted balance block 4 needs to be calculated, thereby reducing the amount of calculation.

[0083] In this embodiment, reference Figure 3 The second dynamic balancing process includes steps S301 to S304.

[0084] Step S301: If the first residual imbalance is greater than the preset imbalance, then rotate the first weighted balancing block 41 at the second rotation angle.

[0085] In this step, such as Figure 7 As shown, by adjusting the rotation angle of a weighted balancing block 4, the residual amount is made to be lower than the allowable imbalance amount.

[0086] The formula for calculating the second rotation angle is:

[0087]

[0088] Where N is the number of weighted balancing blocks 4, R1 is the equivalent outer radius of the weighted balancing block 4 in the groove, R2 is the equivalent inner radius of the weighted balancing block 4 in the groove, H is the thickness of the weighted balancing block 4, ρ is the density of the weighted balancing block 4, A is the radian corresponding to a balancing block, M1 is the residual unbalance after setting the weighted balancing block 4, β is the radian between the weighted balancing block 4 and the zero degree of weighting, γ is the radian between the weighted balancing block 4 and the zero degree of weighting after moving one side of the weighted balancing block 4, and t is the radian corresponding to the first weighted balancing block 41.

[0089] Step S302: Obtain the second residual imbalance.

[0090] Step S303: Determine whether the second residual imbalance is less than the preset imbalance.

[0091] Step S304: If the second residual imbalance is less than the preset imbalance, the dynamic balancing of rotor 1 is completed.

[0092] The rotor data relationship after two dynamic balancing processes is shown in Table 1.

[0093] Table 1

[0094]

[0095] After installing the counterweight 4, if the rotor 1 still has a large residual imbalance, the unbalance of the rotor 1 can be adjusted by moving the position of the single counterweight 4 on the rotor 1. At the same time, by using only one counterweight 4 as the correction object, the unbalance of the rotor 1 can be adjusted better.

[0096] Based on the above method, this application also provides a rotor dynamic balancing counterweight device, referencing Figure 8 The aforementioned rotor dynamic balancing counterweight device includes a data acquisition unit 81, a processing unit 82, and a transmission unit 83, wherein...

[0097] The acquisition unit 81 is used to acquire the initial imbalance of rotor 1;

[0098] The processing unit 82 is used to calculate the number of weighted balance blocks 4 set on the rotor 1 based on the initial imbalance amount 2, and install the weighted balance blocks 4 on the rotor 1 to complete the dynamic balance of the rotor 1.

[0099] In one possible example, the processing unit 82 is used to obtain the number of weighted balance blocks 4 based on the radian value of the equivalent balance block 3 and the radian value of the weighted balance block 4, wherein the equivalent balance block 3 is converted from the initial unbalance amount 2.

[0100] In one possible example, the processing unit 82 is used to round up the ratio of the radian value of the equivalent balancing block 3 to the radian value of the weighted balancing block 4 to obtain the number of weighted balancing blocks 4, wherein the number of weighted balancing blocks 4 is an even number.

[0101] In one possible example, the processing unit 82 is used to decompose the equivalent balance block 3 into a symmetrical vector to form a first weighted balance block 41 and a second weighted balance block 42. The sending unit 83 is used to transmit information about the first weighted balance block 41 and the second weighted balance block 42 being installed on the rotor 1 at a first rotation angle to the terminal device. The acquisition unit 81 is used to acquire the first residual imbalance amount. The processing unit 82 is used to determine whether the first residual imbalance amount is less than a preset imbalance amount. If the first residual imbalance amount is less than or equal to the preset imbalance amount, the dynamic balancing of the rotor 1 is completed.

[0102] In one possible example, the formula for calculating the radian value of the equivalent balance block 3 is:

[0103]

[0104] Where 2θ is the radian value of the equivalent balancing block 3, R1 is the equivalent outer radius of the weighted balancing block 4 in the slot, R2 is the equivalent inner radius of the weighted balancing block 4 in the slot, H is the thickness of the weighted balancing block 4, ρ is the density of the weighted balancing block 4, and M0 is the initial unbalance 2 of the rotor 1.

[0105] In one possible example, the formula for calculating the first rotation angle is:

[0106]

[0107] Where N is the number of weighted balancing blocks 4, R1 is the equivalent outer radius of the weighted balancing block 4 in the slot, R2 is the equivalent inner radius of the weighted balancing block 4 in the slot, H is the thickness of the weighted balancing block 4, ρ is the density of the weighted balancing block 4, 2α is the included angle corresponding to the equivalent balancing block 3, M0 is the initial imbalance amount 2 of the rotor 1, A is the radian corresponding to a weighted balancing block 4, and t is the radian corresponding to the first weighted balancing block 41.

[0108] In one possible example, the formula for calculating the second rotation angle is:

[0109]

[0110] Where N is the number of weighted balancing blocks 4, R1 is the equivalent outer radius of the weighted balancing block 4 in the groove, R2 is the equivalent inner radius of the weighted balancing block 4 in the groove, H is the thickness of the weighted balancing block 4, ρ is the density of the weighted balancing block 4, A is the radian corresponding to a balancing block, M1 is the residual unbalance after setting the weighted balancing block 4, β is the radian between the weighted balancing block 4 and the zero degree of weighting, γ is the radian between the weighted balancing block 4 and the zero degree of weighting after moving one side of the weighted balancing block 4, and t is the radian corresponding to the first weighted balancing block 41.

[0111] Please see Figure 9 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 9 As shown, the electronic device 9 may include: at least one processor 91, at least one network interface 94, a user interface 93, a memory 95, and at least one communication bus 92.

[0112] The communication bus 92 is used to enable communication between these components.

[0113] The user interface 93 may include a display screen and a camera. Optionally, the user interface 93 may also include a standard wired interface and a wireless interface.

[0114] Among them, the network interface 94 may optionally include a standard wired interface or a wireless interface (such as a WI-FI interface).

[0115] The processor 91 may include one or more processing cores. The processor 91 connects to various parts of the server using various interfaces and lines, and performs various server functions and processes data by running or executing instructions, programs, code sets, or instruction sets stored in the memory 95, and by calling data stored in the memory 95. Optionally, the processor 91 may be implemented using at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). The processor 91 may integrate one or a combination of several of the following: Central Processing Unit (CPU), Graphics Processing Unit (GPU), and modem. The CPU primarily handles the operating system, user interface, and applications; the GPU is responsible for rendering and drawing the content required for display; and the modem handles wireless communication. It is understood that the modem may also be implemented as a separate chip without being integrated into the processor 91.

[0116] The memory 95 may include random access memory (RAM) or read-only memory. Optionally, the memory 95 may include non-transitory computer-readable storage medium. The memory 95 can be used to store instructions, programs, code, code sets, or instruction sets. The memory 95 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as touch function, sound playback function, image playback function, etc.), instructions for implementing the above-described method embodiments, etc.; the data storage area may store data involved in the above-described method embodiments, etc. Optionally, the memory 95 may also be at least one storage device located remotely from the aforementioned processor 91. Figure 9 As shown, the memory 95, which serves as a computer storage medium, may include an operating system, a network communication module, a user interface module, and an application program for a rotor dynamic balancing counterweight method.

[0117] exist Figure 9In the electronic device 9 shown, the user interface 93 is mainly used to provide an input interface for the user and to obtain the user input data; while the processor 91 can be used to call an application program stored in the memory 95 for a rotor dynamic balancing counterweight method. When executed by one or more processors, the electronic device executes one or more methods as described in the above embodiments.

[0118] A computer-readable storage medium storing instructions that, when executed by one or more processors, cause a computer to perform one or more methods as described in the embodiments above.

[0119] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0120] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0121] In the several embodiments provided in this application, it should be understood that the disclosed apparatus can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the shown or discussed mutual couplings or direct couplings or communication connections may be through some service interfaces; indirect couplings or communication connections between apparatuses or units may be electrical or other forms.

[0122] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0123] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0124] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage device (CMD). Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned memory includes various media capable of storing program code, such as USB flash drives, portable hard drives, magnetic disks, or optical disks.

[0125] The above are merely exemplary embodiments of this disclosure and should not be construed as limiting the scope of this disclosure. Any equivalent changes and modifications made in accordance with the teachings of this disclosure shall still fall within the scope of this disclosure. Those skilled in the art will readily conceive of other embodiments of this disclosure upon considering the specification and the disclosure of practical truths. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not described in this disclosure.

Claims

1. A method of balancing a rotor with a counterweight, characterized in that, Applied to the balancing machine, the method comprises: Obtaining an initial unbalance of a rotor; According to the initial unbalance, the number of heavy balancing blocks arranged on the rotor is calculated; The heavy balancing blocks are installed on the rotor to complete the rotor dynamic balancing weight; the number of heavy balancing blocks arranged on the rotor is calculated according to the initial unbalance, specifically: According to the radian value of the equivalent balancing block and the radian value of the heavy balancing block, the number of the heavy balancing blocks is obtained, wherein the equivalent balancing block is a virtual balancing block determined to offset the initial unbalance, and the unbalanced torque generated by the equivalent balancing block is equal in size and opposite in direction to the initial unbalance, and the radian value of the equivalent balancing block is calculated by the formula: Wherein, 2θ is the radian value of the equivalent balancing block, R1 is the equivalent outer radius of the equivalent balancing block in the groove, R2 is the equivalent inner radius of the equivalent balancing block in the groove, H is the thickness of the equivalent balancing block, ρ is the density of the equivalent balancing block, M0 is the initial unbalance of the rotor.

2. The method of claim 1, wherein, The number of heavy balancing blocks is obtained according to the ratio of the radian value of the equivalent balancing block to the radian value of the heavy balancing block; According to the ratio, the number of equivalent balancing blocks is obtained by rounding up, wherein the number of equivalent balancing blocks is an even number.

3. The method of claim 1, wherein, The method further comprises: The equivalent balancing block symmetry vector is decomposed to form a first heavy balancing block and a second heavy balancing block; The first heavy balancing block and the second heavy balancing block are installed on the rotor at a first rotation angle; Obtaining a first residual unbalance; Determine whether the first residual unbalance is less than a preset unbalance; If the first residual unbalance is less than or equal to the preset unbalance, the rotor dynamic balancing weight is completed.

4. The method of claim 3, wherein, The method further comprises: If the first residual unbalance is greater than the preset unbalance, the first heavy balancing block is rotated at a second rotation angle; Obtaining a second residual unbalance; Determine whether the second residual unbalance is less than a preset unbalance; If the second residual unbalance is less than the preset unbalance, the rotor dynamic balancing weight is completed.

5. The method of claim 3, wherein, The calculation formula of the first rotation angle is: Wherein, N is the number of equivalent balancing blocks, R1 is the equivalent outer radius of the equivalent balancing block in the groove, R2 is the equivalent inner radius of the equivalent balancing block in the groove, H is the thickness of the equivalent balancing block, ρ is the density of the equivalent balancing block, 2α is the corresponding angle of the equivalent balancing block, M0 is the initial unbalance of the rotor, A is the radian corresponding to an equivalent balancing block, and t is the radian corresponding to the first heavy balancing block.

6. The method of claim 4, wherein, The calculation formula of the second rotation angle is: Wherein, N is the number of equivalent balancing blocks, R1 is the equivalent outer radius of the equivalent balancing block in the groove, R2 is the equivalent inner radius of the equivalent balancing block in the groove, H is the thickness of the equivalent balancing block, ρ is the density of the equivalent balancing block, A is the radian corresponding to an equivalent balancing block, M1 is the residual unbalance after arranging the heavy balancing block, β is the radian of the heavy balancing block and the heavy zero degree, γ is the radian of the heavy balancing block and the heavy zero degree after moving the single-side heavy balancing block, and t is the radian corresponding to the first heavy balancing block.

7. A rotor dynamic balancing weight device for implementing the rotor dynamic balancing weight method according to any one of claims 1 to 6, characterized by The rotor dynamic balancing weight device comprises a collection unit and a processing unit, wherein, the collection unit is used to acquire the initial unbalance of the rotor; the processing unit is used to calculate the number of heavy balancing blocks arranged on the rotor according to the initial unbalance, and install the heavy balancing blocks on the rotor to complete the rotor dynamic balancing weight.

8. An electronic device, comprising: The electronic device comprises a processor, a memory, a user interface and a network interface, the memory is used to store instructions, the user interface and the network interface are used to communicate with other devices, and the processor is used to execute the instructions stored in the memory to enable the electronic device to execute the method according to any one of claims 1-6.

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