Pump bearing structure determination method and device, medium, electronic equipment and program product
By calculating the structural parameters of the pump bearing, especially the contact area between the bearing bush and the thrust disc, the problem of high friction during the pump start-up phase was solved, ensuring that the motor has sufficient torque margin and achieving stable start-up and efficient operation of the pump.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA SHENHUA COAL TO LIQUID & CHEMICAL ORDOS COAL LIQUEFACTION CO ORDOS CITY
- Filing Date
- 2026-01-12
- Publication Date
- 2026-05-19
AI Technical Summary
During the pump startup phase, how to set the contact area between the bearing and the thrust disc to reduce frictional resistance while ensuring that the motor has sufficient torque margin to complete the startup is a problem that has not been effectively solved in the existing technology.
By obtaining the structural parameters of the pump bearing, the equivalent total radius and area of the bearing bush are calculated. Initially, one bearing bush is set to contact the thrust disc to reduce the contact area and frictional resistance. During pump operation, the number of bearing bushes is increased to distribute the load and ensure that the motor has sufficient torque margin to complete the start-up.
This effectively reduces frictional resistance during pump startup, ensures sufficient torque margin for the motor, promotes rapid pump entry into stable operation, and improves the overall performance and reliability of the pump.
Smart Images
Figure CN122065460A_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of pump bearing structure technology, specifically to a method, apparatus, medium, electronic equipment, and program product for determining pump bearing structure. Background Technology
[0002] Bearings are not only an important component of pumps, such as circulating pumps and boiling pumps, but also a key factor in ensuring the normal operation of pumps, improving working efficiency, and extending service life.
[0003] During normal pump operation, a larger bearing area means a larger contact area, which can distribute more load and improve the bearing's load-bearing capacity. Furthermore, the bearing area also affects the bearing's lubrication performance. A larger bearing area can provide a more stable lubricating oil film, reducing wear and failures caused by poor lubrication. In addition, a larger bearing area facilitates the storage and circulation of lubricating oil, ensuring the bearing is always in a well-lubricated condition.
[0004] However, the situation is different during the pump startup phase. During startup, a larger bearing area increases the initial frictional resistance and starting torque of the bearing, which may affect the motor's starting torque safety margin and pose a challenge to the normal startup of the pump.
[0005] In related technologies, how to set the contact area between the bearing and the thrust disc during the initial pump startup to reduce frictional resistance while ensuring that the motor has sufficient torque margin to complete the startup is an urgent problem to be solved. Summary of the Invention
[0006] The purpose of this disclosure is to provide a method, apparatus, medium, electronic equipment, and program product for determining the structure of a pump bearing, in order to solve problems in the related art.
[0007] To achieve the above objectives, this disclosure provides a method for determining the structure of a pump bearing, including: Obtain the structural parameters of the pump bearing, including the internal structural parameters of the pump bearing body, the friction coefficient between the bearing bush and the thrust disc, and the external pressure on the pump bearing. Based on the structural parameters, determine the equivalent total radius of the bearing bush in the pump bearing; The total area of the equivalent circle of the bearing bush is determined based on its equivalent total radius. The area of each bearing is determined based on the total equivalent circular area of the bearing and the number of bearings, wherein the area of the bearing represents the initial contact area between the bearing and the thrust plate.
[0008] Optionally, the structural parameters of the pump bearing body include the rotor weight of the pump, the rated power of the pump motor, and the rated speed of the pump motor.
[0009] Optionally, the formula for calculating the equivalent total radius of the bearing bush in the pump bearing is:
[0010] in, Let k be the equivalent total radius of the bearing bush in the pump bearing, and k be the equivalent total radius of the bearing bush. The coefficient represents the relationship. The rotor weight of the pump is... The friction coefficient between the bearing and the thrust disc is denoted as . The rated power of the pump motor. The rated speed of the pump motor. The external pressure exerted on the pump bearing.
[0011] Optionally, the value of k is 7.1. The value is -0.33.
[0012] Optionally, the external pressure on the pump bearing is equal to the pressure of the medium inside the pump.
[0013] Optionally, the method for determining the pump bearing structure further includes: The geometric shape of the bearing is determined based on its area and morphological properties.
[0014] This disclosure also provides a pump bearing structure determination device, including: The first processing module is configured to acquire the structural parameters of the pump bearing, including the internal structural parameters of the pump bearing body, the friction coefficient between the bearing bush and the thrust disc, and the external pressure on the pump bearing. The second processing module is configured to determine the equivalent total radius of the bearing bush in the pump bearing based on the structural parameters. The third processing module is configured to determine the total area of the equivalent circle of the bearing bush based on the equivalent total radius of the bearing bush. The fourth processing module is configured to determine the area of each of the bearing bushes based on the total equivalent circular area of the bearing bushes and the number of the bearing bushes, wherein the area of the bearing bushes represents the initial contact area between the bearing bushes and the thrust disk.
[0015] This disclosure also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the above-described method for determining the pump bearing structure.
[0016] This disclosure also provides an electronic device, including: A memory on which computer programs are stored; A processor is configured to execute the computer program in the memory to implement the steps of the above-described method for determining the pump bearing structure.
[0017] This disclosure also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the above-described method for determining the pump bearing structure.
[0018] The above technical solution first obtains the structural parameters of the pump bearing, including the internal structural parameters of the pump bearing body, the friction coefficient between the bearing bush and the thrust plate, and the external pressure on the pump bearing. Then, based on the structural parameters, the equivalent total radius of the bearing bush is determined. Based on the equivalent total radius of the bearing bush, the equivalent total area of the bearing bush's circle is determined. Finally, based on the equivalent total area of the bearing bush's circle and the number of bearing bushes, the area of each bearing bush is determined, where the area of the bearing bush represents the initial contact area between the bearing bush and the thrust plate. In the initial stage of pump startup, it is set to have only one bearing bush in contact with the thrust plate to reduce the contact area, thereby reducing frictional resistance and ensuring sufficient torque margin for the motor to complete the startup process. As the pump runs and an oil film gradually forms in the bearing, the number of bearing bushes is increased to increase the contact area between the bearing bush and the thrust plate, better distributing the load and maintaining stable bearing operation. This effectively solves the problem of high friction during pump startup.
[0019] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description
[0020] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a flowchart illustrating a method for determining the structure of a pump bearing according to an exemplary embodiment.
[0021] Figure 2 This is a block diagram illustrating a method for determining a pump bearing structure according to an exemplary embodiment.
[0022] Figure 3 This is a block diagram illustrating an electronic device according to an exemplary embodiment. Detailed Implementation
[0023] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.
[0024] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.
[0025] Bearings are not only an important component of pumps, such as circulating pumps and boiling pumps, but also a key factor in ensuring the normal operation of pumps, improving working efficiency, and extending service life.
[0026] During normal pump operation, a larger bearing area means a larger contact area, which can distribute more load and improve the bearing's load-bearing capacity. Furthermore, the bearing area also affects the bearing's lubrication performance. A larger bearing area can provide a more stable lubricating oil film, reducing wear and failures caused by poor lubrication. In addition, a larger bearing area facilitates the storage and circulation of lubricating oil, ensuring the bearing is always in a well-lubricated condition.
[0027] However, the situation is different during the pump startup phase. Since the lubricating oil film in the bearings has not yet been established, under high-pressure conditions, a larger bearing area means a larger bearing force. A larger bearing area also increases the friction area, thus increasing frictional losses and bearing resistance torque to some extent. Given a fixed motor power and speed, the starting torque that the motor can provide is also a constant. Therefore, during startup, a larger bearing area increases the initial frictional resistance and starting torque of the bearing, potentially affecting the motor's starting torque safety margin and posing a challenge to the normal startup of the pump.
[0028] In related technologies, how to set the contact area between the bearing and the thrust disc during the initial pump startup to reduce frictional resistance while ensuring that the motor has sufficient torque margin to complete the startup is an urgent problem to be solved.
[0029] To address the aforementioned issues, the structural parameters of the pump bearing are first obtained. These parameters include the internal structural parameters of the pump bearing body, the coefficient of friction between the bearing bush and the thrust plate, and the external pressure exerted on the pump bearing. Based on these structural parameters, the equivalent total radius of the bearing bush is determined. Then, based on the equivalent total radius, the equivalent total area of the bearing bush's circle is determined. Finally, based on the equivalent total area of the bearing bush's circle and the number of bearing bushes, the area of each bearing bush is determined. The area of each bearing bush represents the initial contact area between the bearing bush and the thrust plate. During the initial pump startup, only one bearing bush is in contact with the thrust plate to reduce the contact area, thereby lowering frictional resistance and ensuring sufficient torque margin for the motor to complete the startup process. As the pump runs and an oil film gradually forms in the bearing, the number of bearing bushes is increased to increase the contact area between the bearing bush and the thrust plate, better distributing the load and maintaining stable bearing operation. This effectively solves the problem of high friction during the pump startup phase.
[0030] Figure 1 This is a flowchart illustrating a method for determining a pump bearing structure according to an exemplary embodiment. This method for determining the pump bearing structure can be applied to electronic devices; please refer to [link / reference]. Figure 1 The method for determining the structure of the pump bearing may include steps S1 to S4.
[0031] Step S1: Obtain the structural parameters of the pump bearing.
[0032] Structural parameters include the internal structural parameters of the pump bearing body, the coefficient of friction between the bearing bush and the thrust disc, and the external pressure on the pump bearing.
[0033] In one possible implementation, the structural parameters of the pump bearing body may include the pump rotor weight, the pump motor rated power, and the pump motor rated speed.
[0034] In one possible implementation, the external pressure on the pump bearing is equal to the pressure of the medium inside the pump.
[0035] The structural parameters of the pump bearing body and the friction coefficient between the bearing bush and the thrust disc are both design parameters of the pump and can be obtained directly.
[0036] The external pressure on the pump bearing is mainly the pressure of the medium inside the pump, which is a design parameter of the level pump. Therefore, the external pressure applied to the pump bearing is equivalent to the pressure of the medium inside the pump.
[0037] Step S2: Determine the equivalent total radius of the bearing bush in the pump bearing based on the structural parameters.
[0038] In one possible implementation, the formula for calculating the equivalent total radius of the bearing bush in the pump bearing is:
[0039] in, The equivalent total radius of the pump bearing bush (unit: mm), k and This is the relationship coefficient (unitless). This represents the weight of the pump rotor (unit: N). The coefficient of friction between the bearing and the thrust disc (unitless). The rated power of the pump motor (unit: KW). The rated speed of the pump motor (unit: RPM). This refers to the external pressure exerted on the pump bearing (unit: MPa).
[0040] The formula for calculating the equivalent total radius of the pump bearing bush is derived as follows: The bearing friction force Ff is directly proportional to the normal force FN and the friction coefficient μ, i.e., Ff = μ × FN. This formula is crucial for understanding the working mechanism of bearings.
[0041] Specifically, during pump startup, the composition of the positive pressure FN becomes particularly complex and crucial, mainly consisting of two parts: first, the rotor's own weight Fg, which is a constant physical quantity; and second, the external pressure applied to the pump bearings. The effect of this external pressure on the pump bearings is directly influenced by the contact area between the bearing bush and the thrust disc. Theoretically, the external pressure on the pump bearings can be considered equivalent to the pressure of the medium inside the pump.
[0042] Furthermore, the frictional resistance of the pump bearings is overcome by the motor's torque. The motor's starting torque is closely related to its power, speed, and starting torque multiple. To ensure stable motor startup, it is essential to reserve a certain torque safety margin.
[0043] During the startup phase, the contact area between the bearing bush and the thrust disc becomes a dynamically changing parameter that directly affects the effectiveness of the applied pressure. Therefore, to determine the optimal contact area, it is necessary to continuously make assumptions and perform calculations to find the balance point that satisfies the load-bearing requirements while minimizing frictional resistance.
[0044] To simplify the calculation process, the total area of the equivalent circle obtained by using the equivalent total radius of the bearing bush in the pump bearing can effectively represent the actual contact area of bearing bushes with different geometric shapes, thus facilitating quantitative analysis and calculation.
[0045] Finally, based on a large amount of experimental data and theoretical analysis, a method for calculating the equivalent total radius of the bearing bush in a pump bearing was derived.
[0046] When deriving the equivalent total radius of the pump bearing bush, the step of converting the unit of the pump motor's rated speed from RPM to radians per second (rad / s) is omitted because the unit conversion of the speed is absorbed by the relevant coefficients k and α during the construction process, making the final calculation formula more concise. Similarly, the external pressure applied to the pump bearing is already given in megapascals (MPa), which conforms to common engineering pressure representation methods, and no additional unit conversion is required.
[0047] Based on the above considerations, the relationship between the equivalent total radius of the pump bearing bush and the pump rotor weight, the friction coefficient between the bearing bush and the thrust disc, the rated power of the pump motor, the rated speed of the pump motor, and the external pressure on the pump bearing was obtained. This allows for the rapid and accurate calculation of the allowable contact area of the bearing during the pump startup phase, i.e., the equivalent total circular area of the bearing bush, given specific pump parameters.
[0048] The advantages of this calculation method lie in its efficiency and practicality. It simplifies the calculation process and ensures the accuracy of the results, providing a strong guarantee for the normal start-up of the pump. By precisely controlling the contact area between the bearing bush and the thrust disc during the start-up phase, frictional resistance can be reduced while ensuring that the bearing can quickly enter a stable operating state after startup, thereby improving the overall performance and reliability of the pump.
[0049] The formula for calculating the equivalent total radius of the bearing bush in a pump bearing can be set in a mathematical model. By inputting the structural parameters into the mathematical model, the equivalent total radius of the bearing bush in the pump bearing can be obtained.
[0050] In other embodiments, the structural parameters can be directly substituted into the formula for calculating the equivalent total radius of the bearing bush in the pump bearing to obtain the equivalent total radius of the bearing bush.
[0051] In one possible implementation, k can take the value 7.1. The value can be -0.33.
[0052] Step S3: Determine the total area of the equivalent circle of the bearing bush based on its equivalent total radius.
[0053] The formula for calculating the total equivalent circular area of the bearing bush is: S=π ² Where: S is the equivalent total circular area of the bearing bush (unit: mm²). π is the equivalent total radius of the bearing bush in the pump (unit: mm), and π is the ratio of π to pi.
[0054] Step S4: Determine the area of each bearing based on the total equivalent circular area of the bearing and the number of bearings.
[0055] The area of the bearing bush represents the initial contact area between the bearing bush and the thrust disk.
[0056] The area of each bearing bush = the total area of the equivalent circle of the bearing bush / the number of bearing bushes.
[0057] The number of bearing bushes can be preset, for example, 6.
[0058] First, the structural parameters of the pump bearing are obtained, including the internal structural parameters of the pump bearing body, the friction coefficient between the bearing bush and the thrust plate, and the external pressure on the pump bearing. Then, based on these structural parameters, the equivalent total radius of the bearing bush is determined. Based on the equivalent total radius, the equivalent total area of the bearing bush's circle is determined. Finally, based on the equivalent total area of the bearing bush's circle and the number of bearing bushes, the area of each bearing bush is determined, where the bearing bush area represents the initial contact area between the bearing bush and the thrust plate. During the initial pump startup, only one bearing bush is in contact with the thrust plate to reduce the contact area, lowering frictional resistance while ensuring sufficient torque margin for the motor to complete the startup process. As the pump runs and an oil film gradually forms in the bearing, the number of bearing bushes is increased to increase the contact area between the bearing bush and the thrust plate, better distributing the load and maintaining stable bearing operation. This effectively solves the problem of high friction during the pump startup phase.
[0059] By precisely controlling the contact area between the bearing bush and the thrust disc during the startup phase, frictional resistance can be reduced while ensuring that the bearing can quickly enter a stable operating state after startup, thereby improving the overall performance and reliability of the pump and providing technical support for the subsequent structural design of adjustable relative positions between the bearing bush and the thrust disc.
[0060] In one possible implementation, the method for determining the pump bearing structure may further include: The geometric shape of the bearing is determined based on its area and morphological properties.
[0061] The shape of the bearing bush can be rectangular, circular, fan-shaped, etc.
[0062] Determining the geometric shape of the bearing based on its area and morphological properties can be understood as using the bearing area as input and its morphological properties as constraints or selection ranges to determine a specific dimension, such as length, width, and wrap angle, to satisfy the bearing area.
[0063] In one embodiment, taking a pump with a rated motor power of 75kW as an example, a rated motor speed of 1500RPM, a rotor weight of 4410N, a friction coefficient between the bearing bush and the thrust disc of 0.2, and an external pressure of 20MPa on the pump bearing.
[0064] Relationship coefficient k and The relationship coefficients are obtained using existing optimization algorithms such as gradient descent and Newton's method. The value is -0.33, and the K value is 7.1.
[0065] Substituting the formula for calculating the equivalent total radius of the pump bearing bush, we obtain Req≈32mm.
[0066] According to the pump motor torque calculation formula T=9550 Taking the starting torque multiple as 1.3, the starting torque of the motor is calculated to be T' = 621 N·m.
[0067] Bearing resistance torque: M = FN * D * μ; Where M is the starting resistance torque, FN is the normal force, D is the bearing mean diameter, and μ is the friction coefficient between the bearing bush and the thrust disc; Positive pressure FN = External pressure Papplied acting on the pump bearing + Weight of the pump rotor ; Since the applied pressure equals the external pressure on the pump bearing * the equivalent total circular area S of the bearing bush, the normal force FN = 20 * 3.14 * 32 * 32 + 4410 = 68717.2 N. The bearing resistance torque M = 68717.2 * 32 * 0.2 / 1000 = 439.8 N·m.
[0068] Since the motor starting torque T' is greater than the bearing resistance torque M, the motor can overcome the bearing resistance and start normally.
[0069] Based on the above, the equivalent circular area S of the bearing bush is the sum of the preset contact areas between all bearing bushes and the thrust disc during the initial stage of pump startup. The formula for calculating the equivalent circular area S of the bearing bush is: S=π ² Wherein: the total equivalent circular area S of the bearing bush (unit: mm²). π is the equivalent total radius of the bearing bush in the pump (unit: mm), and π is the ratio of π to pi.
[0070] Based on the above, in the initial stage of pump startup, if the number of bearings is 6 and the total equivalent circular area S is 3216 mm², the contact area between each bearing and the thrust plate is 536 mm². Assuming the bearing has a rectangular shape and a width of 20 mm, the contact area between the bearing and the thrust plate is a 20*26.8 mm rectangular area on the bearing.
[0071] Based on the same inventive concept, in order to realize the above-described method for determining the pump bearing structure, this disclosure also provides a device for determining the pump bearing structure. Please refer to [link to relevant documentation]. Figure 2 The pump bearing structure determining device 600 may include: The first processing module 601 is configured to acquire the structural parameters of the pump bearing, including the internal structural parameters of the pump bearing body, the friction coefficient between the bearing bush and the thrust plate, and the external pressure on the pump bearing. The second processing module 602 is configured to determine the equivalent total radius of the bearing bush in the pump bearing based on the structural parameters. The third processing module 603 is configured to determine the total area of the equivalent circle of the bearing based on the equivalent total radius of the bearing. The fourth processing module 604 is configured to determine the area of each bearing based on the total equivalent circular area of the bearing and the number of bearings, wherein the area of the bearing represents the initial contact area between the bearing and the thrust disk.
[0072] Optionally, the structural parameters of the pump bearing body include the pump rotor weight, the pump motor rated power, and the pump motor rated speed.
[0073] Optionally, the formula for calculating the equivalent total radius of the bearing bush in the pump bearing is:
[0074] in, Let k be the equivalent total radius of the bearing bush in the pump bearing, and k be the equivalent total radius of the bearing bush. The coefficient represents the relationship. For the weight of the pump rotor, The coefficient of friction between the bearing and the thrust disc. The rated power of the pump motor. The rated speed of the pump motor. This refers to the external pressure exerted on the pump bearing.
[0075] Optionally, k can be 7.1. The value is -0.33.
[0076] Alternatively, the external pressure on the pump bearing is equal to the pressure of the medium inside the pump.
[0077] Optionally, the pump bearing structure determining device 600 may further include: The fifth processing module is configured to determine the geometric shape of the bearing based on its area and shape properties.
[0078] Regarding the pump bearing structure determination device in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the pump bearing structure determination method, and will not be elaborated here.
[0079] Figure 3This is a block diagram illustrating an electronic device 700 according to an exemplary embodiment. Figure 3 As shown, the electronic device 700 may include a processor 701 and a memory 702. The electronic device 700 may also include one or more of a multimedia component 703, an input / output (I / O) interface 704, and a communication component 705.
[0080] The processor 701 controls the overall operation of the electronic device 700 to complete all or part of the steps in the pump bearing structure determination method described above. The memory 702 stores various types of data to support the operation of the electronic device 700. This data may include, for example, instructions for any application or method operating on the electronic device 700, and application-related data such as contact data, sent and received messages, pictures, audio, video, etc. The memory 702 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The multimedia component 703 may include a screen and audio components. The screen may be, for example, a touchscreen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signals may be further stored in memory 702 or transmitted via communication component 705. The audio component also includes at least one speaker for outputting audio signals. I / O interface 704 provides an interface between processor 701 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual or physical buttons. Communication component 705 is used for wired or wireless communication between the electronic device 700 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IoT, eMTC, or other 5G technologies, or combinations thereof, is not limited here. Therefore, the corresponding communication component 705 may include: a Wi-Fi module, a Bluetooth module, an NFC module, etc.
[0081] In an exemplary embodiment, the electronic device 700 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the pump bearing structure determination method described above.
[0082] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, which, when executed by a processor, implement the steps of the pump bearing structure determination method described above. For example, the computer-readable storage medium may be the memory 702 including program instructions described above, which may be executed by the processor 701 of the electronic device 700 to complete the pump bearing structure determination method described above.
[0083] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.
[0084] Of course, those skilled in the art will recognize that the present invention is not limited to the details of the exemplary embodiments described above, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims. Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not further describe various possible combinations.
[0085] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.
Claims
1. A method for determining the structure of a pump bearing, characterized in that, include: Obtain the structural parameters of the pump bearing, including the internal structural parameters of the pump bearing body, the friction coefficient between the bearing bush and the thrust disc, and the external pressure on the pump bearing. Based on the structural parameters, determine the equivalent total radius of the bearing bush in the pump bearing; The total area of the equivalent circle of the bearing bush is determined based on its equivalent total radius. The area of each bearing is determined based on the total equivalent circular area of the bearing and the number of bearings, wherein the area of the bearing represents the initial contact area between the bearing and the thrust plate.
2. The method for determining the pump bearing structure according to claim 1, characterized in that, The structural parameters of the pump bearing body include the rotor weight of the pump, the rated power of the pump motor, and the rated speed of the pump motor.
3. The method for determining the pump bearing structure according to claim 2, characterized in that, The formula for calculating the equivalent total radius of the bearing bush in the pump bearing is: in, Let k be the equivalent total radius of the bearing bush in the pump bearing, and k be the equivalent total radius of the bearing bush. The coefficient represents the relationship. The rotor weight of the pump is... The friction coefficient between the bearing and the thrust disc is denoted as . The rated power of the pump motor. The rated speed of the pump motor. The external pressure exerted on the pump bearing.
4. The method for determining the pump bearing structure according to claim 3, characterized in that, The value of k is 7.
1. The value is -0.
33.
5. The method for determining the pump bearing structure according to any one of claims 1-4, characterized in that, The external pressure on the pump bearing is equal to the pressure of the medium inside the pump.
6. The method for determining the pump bearing structure according to any one of claims 1-4, characterized in that, The method for determining the pump bearing structure also includes: The geometric shape of the bearing is determined based on its area and morphological properties.
7. A device for determining the structure of a pump bearing, characterized in that, include: The first processing module is configured to acquire the structural parameters of the pump bearing, including the internal structural parameters of the pump bearing body, the friction coefficient between the bearing bush and the thrust disc, and the external pressure on the pump bearing. The second processing module is configured to determine the equivalent total radius of the bearing bush in the pump bearing based on the structural parameters. The third processing module is configured to determine the total area of the equivalent circle of the bearing bush based on the equivalent total radius of the bearing bush. The fourth processing module is configured to determine the area of each of the bearing bushes based on the total equivalent circular area of the bearing bushes and the number of the bearing bushes, wherein the area of the bearing bushes represents the initial contact area between the bearing bushes and the thrust disk.
8. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the steps of the method for determining the pump bearing structure as described in any one of claims 1-6.
9. An electronic device, characterized in that, include: A memory on which computer programs are stored; A processor for executing the computer program in the memory to implement the steps of the pump bearing structure determination method according to any one of claims 1-6.
10. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program implements the steps of the method for determining the pump bearing structure as described in any one of claims 1-6.