Multifunctional efficient hydraulic station

Abstract

The invention discloses a multifunctional efficient hydraulic station, and belongs to the technical field of hydraulic equipment, the multifunctional efficient hydraulic station comprises a hydraulic pump assembly A and a hydraulic pump assembly B which are mounted on a hydraulic station body, and further comprises an oil state analysis module used for obtaining oil states and vibration data of the hydraulic pump assembly A and the hydraulic pump assembly B and generating oil influence coefficients; the power balanced distribution module is used for distributing the flow of the hydraulic pump assembly A and the hydraulic pump assembly B according to the oil liquid influence coefficient and generating a power balanced distribution coefficient; the rotating speed adjusting module is used for adjusting the rotating speed of the hydraulic pump assembly A and the rotating speed of the hydraulic pump assembly B according to the power equilibrium distribution coefficient; the oil health state is evaluated in real time through multi-parameter normalization analysis and vibration correction, meanwhile, the double-pump flow is adjusted in a self-adaptive mode on the basis of the oil influence coefficient and the logistic function model, meanwhile, the flow deviation and pressure difference are combined, the power balance coefficient is quantized, and the rotating speed is adjusted in a graded mode, so that the system stability is remarkably improved.

Description

Technical Field

[0001] The invention belongs to the technical field of hydraulic equipment, and in particular relates to a multifunctional and efficient hydraulic station. Background Art

[0002] As the core power unit in the industrial field, the performance of the hydraulic station directly affects the operating efficiency and reliability of the equipment. Traditional hydraulic stations mostly adopt a single pump group structure. A single pump group is difficult to dynamically match the load demand under changing working conditions, resulting in energy waste. There is a lack of real-time monitoring and feedback of the oil state (temperature, cleanliness, viscosity, etc.), and it is easy to cause failures due to oil deterioration. When multiple pumps work together, the flow and pressure distribution rely on mechanical adjustment, which has slow response and low accuracy.

[0003] Therefore, there is an urgent need for a multifunctional and efficient hydraulic station that integrates oil state analysis, dynamic flow distribution and adaptive speed regulation to improve system energy efficiency, extend equipment life and enhance stability. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a multifunctional and efficient hydraulic station to solve the above problems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multifunctional and efficient hydraulic station, comprising at least two sets of hydraulic pump assemblies, a hydraulic pump assembly A and a hydraulic pump assembly B, installed on the hydraulic station body, and further comprising: The oil state analysis module is used to obtain the oil state data and vibration data of the hydraulic pump assembly A and the hydraulic pump assembly B, and generate the oil influence coefficient; A power balance distribution module is used to distribute the flow of the hydraulic pump assembly A and the hydraulic pump assembly B according to the oil influence coefficient and generate a power balance distribution coefficient; A speed adjustment module, used to adjust the speeds of the hydraulic pump assembly A and the hydraulic pump assembly B according to the power balance distribution coefficient; The specific steps of the oil state analysis module generating the oil influence coefficient are as follows: S101, obtaining oil status data of hydraulic pump assembly A and hydraulic pump assembly B and vibration data of their respective pump bodies, wherein the oil status data includes oil temperature, oil cleanliness, oil viscosity, temperature difference between the oil and the external environment, and oil temperature fluctuation value; S102, performing parameter normalization processing on the oil state data and the vibration data, thereby obtaining the oil temperature index, temperature difference index, oil temperature fluctuation index, cleanliness index, oil viscosity index and vibration index of the two groups of hydraulic pump components; S103: Generate the oil state analysis coefficients of hydraulic pump assembly A and hydraulic pump assembly B according to the two sets of index information in S102 as well as .

[0006] On the basis of the above technical solution, the present invention also provides the following optional technical solution: Further technical solution: Generate oil state analysis coefficients of hydraulic pump assembly A and hydraulic pump assembly B as well as The specific method is: import the two sets of index information obtained in S102 into the pre-built oil state analysis model to generate as well as , the oil state analysis model is expressed as: in, Represents the oil state analysis coefficient, Indicates the oil temperature index, represents the temperature difference index, Indicates the oil temperature fluctuation index, Indicates the oil viscosity index, Indicates the cleanliness index. represents the vibration index, represents the vibration correction factor, represents the weight and 1.

[0007] Further technical solution: The specific steps of the power balance distribution module distributing the flow of the hydraulic pump assembly A and the hydraulic pump assembly B according to the oil influence coefficient and generating the power balance distribution coefficient are as follows: S201, the oil state analysis coefficients of the hydraulic pump assembly A and the hydraulic pump assembly B are obtained as well as Perform ratio processing, if , then select Substituted into the flow correction model as an influencing parameter, if , then select Substitute the influencing parameters into the flow correction model to obtain the target flow of hydraulic pump component A. and the target flow rate of hydraulic pump assembly B , the flow correction model is expressed as: in, represents the target flow rate of hydraulic pump assembly A, represents the target flow rate of hydraulic pump assembly B, Indicates the total flow required by the actuator, represents the oil influence coefficient, Indicates the flow allocation sensitivity coefficient; S202: Obtain target traffic And target traffic , substituted into the pre-built power balance distribution model, and output the power balance distribution coefficient. The power balance distribution model is expressed as: in, The power balance distribution coefficient, Indicates the current outlet flow of hydraulic pump assembly A, represents the target flow rate of hydraulic pump assembly A, Indicates the current outlet flow of hydraulic pump assembly B, represents the target flow rate of hydraulic pump assembly B, Indicates the current outlet pressure of hydraulic pump assembly A, Indicates the current outlet pressure of hydraulic pump assembly B, Indicates the total flow required by the actuator, represents the pressure weight, Indicates the maximum allowable pressure.

[0008] Further technical solutions: If or , ignoring the flow deviation term or , only calculate right to avoid false triggering of adjustments.

[0009] Further technical solution: The specific steps of the speed adjustment module adjusting the speed of the hydraulic pump assembly A and the hydraulic pump assembly B according to the power balance distribution coefficient are as follows: Will obtain The speeds of the hydraulic pump assembly A and the hydraulic pump assembly B are adjusted accordingly according to the comparison results, specifically: like , the current speed is maintained, and the pressure difference between the hydraulic pump assembly A and the hydraulic pump assembly B is adjusted through the pressure compensation valve; like , the speed difference between hydraulic pump assembly A and hydraulic pump assembly B is proportionally distributed , determine the target speed of hydraulic pump assembly A based on the speed difference and the target speed of hydraulic pump assembly B ; The speed difference is expressed as: Indicates the speed difference between hydraulic pump assembly A and hydraulic pump assembly B, represents the power balance distribution coefficient, Indicates the total speed requirement, Indicates the current speed of hydraulic pump assembly A, Indicates the current speed of hydraulic pump assembly B; The target speed of the hydraulic pump assembly A is expressed as: represents the target speed of hydraulic pump assembly A, Indicates the current speed of hydraulic pump assembly A, Indicates the speed difference between hydraulic pump assembly A and hydraulic pump assembly B, Indicates the target flow of hydraulic pump component A, Indicates the flow required by the actuator; The target speed of the hydraulic pump assembly B is expressed as: represents the target speed of hydraulic pump assembly B, Indicates the total speed requirement, represents the target speed of the hydraulic pump assembly A; like , then adjust independently as well as , an adjustment strategy of reducing high speed and increasing low speed is adopted to gradually balance the speeds of hydraulic pump component A and hydraulic pump component B. The speed adjustment amount is 40rpm each time, and fuzzy PID control is used to quickly adjust the speeds of the two pumps.

[0010] Further technical solutions: also include a multi-layer partition assembly and a high-efficiency filter installed in the hydraulic station body, the multi-layer partition assembly includes partitions A, B and C which are linearly arranged in the oil tank and divide the oil tank into four areas of A, B, C and D. Four oil passages are opened at two-thirds of the height of partition A, the partition B adopts a porous partition, and an array of small holes are opened in the area above one-half of the height of partition B. A V-shaped partition is installed at the bottom of area B to make the bottom of area B funnel-shaped, and a slag discharge pipe with a valve is connected to the lowest point thereof, and the partition C adopts a screen partition.

[0011] Further technical solution: The hydraulic pump assembly A and the hydraulic pump assembly B have the same structure. The hydraulic pump assembly A includes an oil tank A, a motor A and a hydraulic pump A. The two oil tanks are equipped with independent oil inlets, oil outlets, oil drain ports and liquid level monitoring devices, and the oil between the two can be supplemented or isolated through a connecting pipe with a control valve.

[0012] Further technical solution: an oil temperature sensor and a cooler are installed inside each oil tank. The oil temperature sensor monitors the oil temperature in real time. When the oil temperature exceeds the set upper limit, the cooler automatically starts to dissipate heat. The cooler adopts an efficient fin structure, combined with forced air cooling or water cooling, to quickly reduce the oil temperature. At the same time, the connecting pipe between the two oil tanks can realize the exchange of hot oil and cold oil. The return oil of the multifunctional and efficient hydraulic station is installed with an oil return filter.

[0013] Further technical solution: The multifunctional and efficient hydraulic station also includes two groups of operating control valves and corresponding connecting pipelines and control circuits.

[0014] The present invention provides a multifunctional and efficient hydraulic station, which has the following beneficial effects compared with the prior art: 1. The present invention uses multi-parameter normalization analysis (temperature, cleanliness, viscosity, etc.) and vibration correction to evaluate the oil health status in real time and prevent equipment failures caused by oil deterioration. At the same time, based on the oil influence coefficient and the logistic function model, the dual pump flow is adaptively adjusted. 2. Ensure that each pump is in the best working condition under the total demand flow, and quantify the dynamic balance coefficient by combining the flow deviation and pressure difference. , adjust the speed in stages to significantly improve system stability; The design and implementation of a dual-tank, dual-motor, dual-pump, dual-operation hydraulic station can effectively improve the adaptability, reliability, and work efficiency of the hydraulic system in complex industrial environments; 3. A multi-layer partition assembly and a high-efficiency filter are arranged inside the oil tank of the present invention. The partition of the multi-layer partition assembly divides the inside of the oil tank into different areas, guides the flow direction of the oil, and allows impurities to have more opportunities to settle in a specific area at the bottom of the oil tank. The multi-layer partition assembly includes partitions A, B and C arranged linearly in the oil tank. The partitions A, B and C divide the oil tank into four areas A, B, C and D. The oil inlet is area A. The partition A from area A to area B adopts a solid partition. Four oil passages are opened at two-thirds of the height of the partition A to allow oil to flow into area B. Zone, the oil is buffered in zone A, zone B is the sedimentation zone, the partition B from zone B to zone C adopts a porous partition, and an array of small holes is opened in the area above half the height of partition B. The oil is further slowed down in zone B to precipitate impurities. A V-shaped partition is installed at the bottom of zone B to make the bottom of zone B funnel-shaped. A slag discharge pipe is connected at the lowest point. The slag discharge pipe is installed with a valve to facilitate the discharge of impurities. Zone C is a fine sedimentation zone. The partition C between zone C and zone D adopts a screen partition, which can filter some unprecipitated iron filings and other impurities. A magnetic suction device is installed at the bottom of zone C to absorb iron filings and impurities. Zone D is an oil absorption zone. The filter adopts a replaceable filter element design, which can effectively filter tiny particle impurities in the oil, ensure the cleanliness of the hydraulic oil, and extend the service life of hydraulic components. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a flow chart of the present invention.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 3 It is a schematic structural diagram of the multi-layer partition assembly of the present invention.

[0018] Notes on figure numbers: 1. Hydraulic station body; 2. Hydraulic pump assembly A; 3. Hydraulic pump assembly B; 4. Multi-layer partition assembly; 401. Partition A; 402. Partition B; 403. Partition C; 404. V-shaped partition. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0021] See also Figure 2 as well as Figure 3 , provided in one embodiment of the present invention, is a multifunctional and efficient hydraulic station, comprising at least two sets of hydraulic pump assemblies, a hydraulic pump assembly A2 and a hydraulic pump assembly B3, installed on a hydraulic station body 1, and further comprising: A multi-layer partition assembly 4 and a high-efficiency filter are installed in the hydraulic station body 1. The multi-layer partition assembly 4 includes partitions A401, B402 and C403 which are linearly arranged in the oil tank and divide the oil tank into four areas A, B, C and D. Four oil passages are opened at two-thirds of the height of the partition A401. The partition B402 adopts a porous partition, and an array of small holes is opened in an area above one-half of the height of the partition B402. A V-shaped partition 404 is installed at the bottom of area B to make the bottom of area B funnel-shaped, and a slag discharge pipe with a valve is connected to the lowest point thereof. The partition C403 adopts a screen partition.

[0022] In the embodiment of the present invention, a multi-layer partition assembly 4 and a high-efficiency filter are arranged inside the oil tank. The partitions of the multi-layer partition assembly 4 divide the inside of the oil tank into different areas, guide the flow direction of the oil, and give impurities more opportunities to settle in a specific area at the bottom of the oil tank. The multi-layer partition assembly 4 includes a partition A401, a partition B402 and a partition C403 arranged linearly in the oil tank. The partitions A401, B402 and C403 (these partitions use multi-level multi-layer partitions) divide the oil tank into four areas A, B, C and D. The oil inlet is area A. The partition A401 from area A to area B uses a solid partition. Four oil passages are opened at the second place to make the oil flow into area B. The oil is buffered in area A. Area B is a sedimentation area. The partition B402 from area B to area C adopts a porous partition. An array of small holes is opened in the area above half of the height of the partition B402. The oil is further slowed down in area B to precipitate impurities. A V-shaped partition 404 is installed at the bottom of area B to make the bottom of area B funnel-shaped. A slag discharge pipe is connected at the lowest point. A valve is installed on the slag discharge pipe to facilitate the discharge of impurities. Area C is a fine sedimentation area. The partition C403 between area C and area D adopts a screen partition to filter some unprecipitated iron filings and other impurities. A magnetic suction device is provided at the bottom of area C to absorb iron filings and impurities. Area D is an oil absorption area. The filter adopts a replaceable filter element design, which can effectively filter tiny particle impurities in the oil, ensure the cleanliness of the hydraulic oil, and extend the service life of the hydraulic components.

[0023] Preferably, the return oil of the multifunctional and efficient hydraulic station is equipped with a return oil filter.

[0024] As an embodiment of the present invention, the multifunctional and efficient hydraulic station also includes two groups of operating control valves and corresponding connecting pipelines and control circuits. The hydraulic pump assembly A2 and the hydraulic pump assembly B3 have the same structure. The hydraulic pump assembly A2 includes an oil tank A, a motor A and a hydraulic pump A. The two oil tanks are equipped with independent oil inlets, oil outlets, oil drain ports and liquid level monitoring devices, and the oil can be supplemented or isolated from each other through a connecting pipeline with a control valve.

[0025] Preferably, an oil temperature sensor and a cooler are installed inside each oil tank. The oil temperature sensor monitors the oil temperature in real time. When the oil temperature exceeds the set upper limit, the cooler automatically starts to dissipate heat. The cooler adopts an efficient fin structure, combined with forced air cooling or water cooling, to quickly reduce the oil temperature. At the same time, the connecting pipe between the two oil tanks can realize the exchange of hot oil and cold oil when necessary.

[0026] Preferably, the multifunctional and efficient hydraulic station can monitor the oil tank liquid level in real time through a liquid level monitoring device. When the liquid level is lower than the set lower limit, the oil replenishing system is automatically started. The oil replenishing system can replenish the filtered and pre-treated hydraulic oil from an external oil source into the oil tank. In addition, the oil in the oil tank is sampled and tested regularly, and it is determined whether all or part of the oil needs to be replaced based on the oil quality condition. When replacing the oil, the connecting pipe between the oil tanks can be used to transfer the oil in one tank to another tank, which is convenient for operation.

[0027] Preferably, the two groups of operation control valves are connected to different hydraulic circuits or actuators, respectively, to achieve independent operation control. For example, one group of operation control valves can be used to control the main actuator in the hydraulic system, such as the telescopic movement of a large hydraulic cylinder; the other group of operation control valves can be used to control auxiliary actuators, such as the rotation of a hydraulic motor or the movement of a small oil cylinder. Operators can flexibly choose to use one or two groups of operation control valves to operate simultaneously according to actual process requirements to achieve complex hydraulic action combinations. At the same time, the operating handle of the operation control valve is designed in accordance with ergonomic principles, is light and flexible to operate, and has positioning and locking functions, which facilitates precise control of the action position and holding state of the hydraulic component.

[0028] In the embodiment of the present invention, the design and implementation of the dual-tank dual-motor dual-pump dual-operation hydraulic station can effectively improve the adaptability, reliability and working efficiency of the hydraulic system in a complex industrial environment.

[0029] See also Figure 1 , provided in one embodiment of the present invention, is a multifunctional and efficient hydraulic station, further comprising: The oil state analysis module is used to obtain the oil state data and vibration data of the hydraulic pump assembly A2 and the hydraulic pump assembly B3, and generate the oil influence coefficient; A power balance distribution module, used to distribute the flow of the hydraulic pump assembly A2 and the hydraulic pump assembly B3 according to the oil influence coefficient and generate a power balance distribution coefficient; The speed adjustment module is used to adjust the speeds of the hydraulic pump assembly A2 and the hydraulic pump assembly B3 according to the power balance distribution coefficient.

[0030] Preferably, the specific steps of the oil state analysis module generating the oil influence coefficient are: S101, obtaining oil status data of hydraulic pump assembly A2 and hydraulic pump assembly B3 and vibration data of their respective pump bodies, wherein the oil status data includes oil temperature, oil cleanliness, oil viscosity, temperature difference between the oil and the external environment, and oil temperature fluctuation value; S102, performing parameter normalization processing on the oil state data and the vibration data, thereby obtaining the oil temperature index, temperature difference index, oil temperature fluctuation index, cleanliness index, oil viscosity index and vibration index of the two groups of hydraulic pump components; S103, importing the two groups of index information in S102 into the constructed oil state analysis model to obtain the oil state analysis coefficients of the hydraulic pump component A2 and the hydraulic pump component B3 as well as , the oil state analysis model is expressed as: in, Represents the oil state analysis coefficient, Indicates the oil temperature index, represents the temperature difference index, Indicates the oil temperature fluctuation index, Indicates the oil viscosity index, Indicates the cleanliness index. represents the vibration index, represents the vibration correction factor (weakens the direct effect of vibration on the model and only enhances the correction when temperature fluctuations are significant), represents the weight and 1; The oil temperature index and oil viscosity index are both calculated using the minimum-maximum principle; The vibration index is expressed as: , Indicates the vibration frequency of the pump body, Indicates the maximum safe frequency of pump body vibration; The cleanliness index is expressed as: , Indicates the current oil particle contaminant concentration. Indicates the maximum allowable oil particle contaminant concentration; The oil temperature fluctuation index is expressed as: , Indicates the maximum allowable temperature fluctuation value. Indicates the standard deviation of temperature in the last 10 minutes. is the temperature sampling value, is the average temperature during the time period, is the number of sampling points; The temperature difference index is expressed as: , Indicates the temperature difference between the oil and the external environment. Indicates the maximum allowable temperature difference; In the embodiment of the present invention, the oil state analysis model integrates parameters such as oil temperature, temperature difference between oil and external environment, oil temperature fluctuation, viscosity and cleanliness to quantify the influence of oil on system performance. When the temperature fluctuation is significant, it can enhance the correction effect of vibration on the model and avoid a single parameter dominating the analysis results.

[0031] Preferably, the specific steps of the power balance distribution module distributing the flow of the hydraulic pump assembly A2 and the hydraulic pump assembly B3 according to the oil influence coefficient and generating the power balance distribution coefficient are: S201, obtain the oil state analysis coefficients of the hydraulic pump assembly A2 and the hydraulic pump assembly B3 as well as Perform ratio processing, if , then select Substitute the influencing parameters into the flow correction model to obtain the target flow of hydraulic pump component A2 and the target flow of the hydraulic pump assembly ,like , then select Substitute the influencing parameters into the flow correction model to obtain the target flow of hydraulic pump component A2 and the target flow of hydraulic pump assembly B3 , the flow correction model is expressed as: in, represents the target flow rate of hydraulic pump assembly A2, represents the target flow rate of hydraulic pump assembly B, Indicates the total flow required by the actuator, represents the oil influence coefficient, Indicates the flow allocation sensitivity coefficient; S202: Obtain target traffic And target traffic , substituted into the pre-built power balance distribution model, and output the power balance distribution coefficient. The power balance distribution model is expressed as: in, The power balance distribution coefficient, Indicates the current outlet flow of hydraulic pump assembly A2, represents the target flow rate of hydraulic pump assembly A2, Indicates the current outlet flow of hydraulic pump assembly B3, represents the target flow rate of hydraulic pump assembly B3, Indicates the current outlet pressure of hydraulic pump assembly A2, Indicates the current outlet pressure of hydraulic pump assembly B3, Indicates the total flow required by the actuator, Indicates the pressure weight (balances the proportion of pressure difference in the dynamic balance coefficient to avoid pressure fluctuations dominating the adjustment logic). Indicates the maximum allowable pressure; Among them, if or , ignoring the flow deviation term or , only calculate right to avoid false triggering of adjustments.

[0032] In this embodiment, the flow correction model converts the oil influence coefficient into Mapped as flow distribution ratio, sensitivity coefficient Control the steepness of the distribution curve to achieve a smooth transition and avoid the impact of sudden flow changes on the system. At the same time, the dynamic balanced distribution model can quantify the deviation between the current flow and the target flow, combined with the pressure difference (weight ) Evaluate dynamic balance, The higher the value, the more serious the system deviation from equilibrium state is, and the ... more serious the system deviation from equilibrium state is, and the more serious the system deviation from equilibrium state is.

[0033] Preferably, the specific steps of the speed adjustment module adjusting the speed of the hydraulic pump assembly A2 and the hydraulic pump assembly B3 according to the power balance distribution coefficient are: Will obtain The speeds of the hydraulic pump assembly A2 and the hydraulic pump assembly B3 are adjusted accordingly according to the comparison results, specifically: like , the current speed is maintained, and the pressure difference between the hydraulic pump assembly A and the hydraulic pump assembly B is adjusted through the pressure compensation valve; like , the speed difference between hydraulic pump assembly A and hydraulic pump assembly B is proportionally distributed , determine the target speed of hydraulic pump assembly A based on the speed difference and the target speed of hydraulic pump assembly B ; The speed difference is expressed as: Indicates the speed difference between hydraulic pump assembly A and hydraulic pump assembly B, represents the power balance distribution coefficient, Indicates the total speed requirement, Indicates the current speed of hydraulic pump assembly A, Indicates the current speed of hydraulic pump assembly B; The target speed of the hydraulic pump assembly A is expressed as: represents the target speed of hydraulic pump assembly A, Indicates the current speed of hydraulic pump assembly A, Indicates the speed difference between hydraulic pump assembly A and hydraulic pump assembly B, Indicates the target flow of hydraulic pump component A, Indicates the flow required by the actuator; The target speed of the hydraulic pump assembly B is expressed as: represents the target speed of hydraulic pump assembly B, Indicates the total speed requirement, represents the target speed of the hydraulic pump assembly A; like , then adjust independently as well as , an adjustment strategy of reducing high speed and increasing low speed is adopted to gradually balance the speeds of hydraulic pump component A and hydraulic pump component B. The speed adjustment amount is 40rpm each time, and fuzzy PID control can be used to quickly adjust the speeds of the two pumps.

[0034] The present invention uses multi-parameter normalization analysis (temperature, cleanliness, viscosity, etc.) and vibration correction to evaluate the oil health status in real time and prevent equipment failures caused by oil deterioration. At the same time, based on the oil influence coefficient and the logistic function model, the dual pump flow is adaptively adjusted to ensure that each pump is in the best working condition under the total demand flow. At the same time, the power balance coefficient is quantified by combining the flow deviation and pressure difference. , adjust the speed strategy in stages to significantly improve system stability.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional and efficient hydraulic station, characterized in that: At least two hydraulic pump assemblies, hydraulic pump assembly A and hydraulic pump assembly B, are installed on the hydraulic station body, and also include: The oil state analysis module is used to obtain the oil state data and vibration data of the hydraulic pump assembly A and the hydraulic pump assembly B, and generate the oil influence coefficient; A power balance distribution module is used to distribute the flow of the hydraulic pump assembly A and the hydraulic pump assembly B according to the oil influence coefficient and generate a power balance distribution coefficient; The speed adjustment module is used to adjust the speed of the hydraulic pump assembly A and the hydraulic pump assembly B according to the power balance distribution coefficient; The specific steps of the oil state analysis module generating the oil influence coefficient are as follows: S101, obtaining oil status data of hydraulic pump assembly A and hydraulic pump assembly B and vibration data of their respective pump bodies, wherein the oil status data includes oil temperature, oil cleanliness, oil viscosity, temperature difference between the oil and the external environment, and oil temperature fluctuation value; S102, performing parameter normalization processing on the oil state data and the vibration data, thereby obtaining the oil temperature index, temperature difference index, oil temperature fluctuation index, cleanliness index, oil viscosity index and vibration index of the two groups of hydraulic pump components; S103: Generate the oil state analysis coefficients of hydraulic pump assembly A and hydraulic pump assembly B according to the two sets of index information in S102 as well as .

2. The multifunctional and efficient hydraulic station according to claim 1, characterized in that: Generate the oil state analysis coefficients of hydraulic pump component A and hydraulic pump component B as well as The specific method is: import the two sets of index information obtained in S102 into the pre-built oil state analysis model to generate as well as , the oil state analysis model is expressed as: in, Represents the oil state analysis coefficient, Indicates the oil temperature index, represents the temperature difference index, Indicates the oil temperature fluctuation index, Indicates the oil viscosity index, Indicates the cleanliness index. represents the vibration index, represents the vibration correction factor, represents the weight and 1.

3. The multifunctional and efficient hydraulic station according to claim 2 is characterized in that: The specific steps of the power balance distribution module distributing the flow of the hydraulic pump assembly A and the hydraulic pump assembly B according to the oil influence coefficient and generating the power balance distribution coefficient are as follows: S201, the oil state analysis coefficients of the hydraulic pump assembly A and the hydraulic pump assembly B are obtained as well as Perform ratio processing, if , then select Substituted into the flow correction model as an influencing parameter, if , then select Substitute the influencing parameters into the flow correction model to obtain the target flow of hydraulic pump component A. and the target flow rate of hydraulic pump assembly B , the flow correction model is expressed as: in, represents the target flow rate of hydraulic pump assembly A, represents the target flow rate of hydraulic pump assembly B, Indicates the total flow required by the actuator, represents the oil influence coefficient, Indicates the flow allocation sensitivity coefficient; S202: Obtain target traffic And target traffic , substituted into the pre-built power balance distribution model, and output the power balance distribution coefficient. The power balance distribution model is expressed as: in, The power balance distribution coefficient, Indicates the current outlet flow of hydraulic pump assembly A, represents the target flow rate of hydraulic pump assembly A, Indicates the current outlet flow of hydraulic pump assembly B, represents the target flow rate of hydraulic pump assembly B, Indicates the current outlet pressure of hydraulic pump assembly A, Indicates the current outlet pressure of hydraulic pump assembly B, Indicates the total flow required by the actuator, represents the pressure weight, Indicates the maximum allowable pressure.

4. The multifunctional and efficient hydraulic station according to claim 3, characterized in that: like or , ignoring the flow deviation term or , only calculate right to avoid false triggering of adjustments.

5. The multifunctional and efficient hydraulic station according to claim 4, characterized in that: The specific steps of the speed adjustment module adjusting the speed of the hydraulic pump assembly A and the hydraulic pump assembly B according to the power balance distribution coefficient are as follows: Will obtain The speeds of the hydraulic pump assembly A and the hydraulic pump assembly B are adjusted accordingly according to the comparison results, specifically: like , the current speed is maintained, and the pressure difference between the hydraulic pump assembly A and the hydraulic pump assembly B is adjusted through the pressure compensation valve; like , the speed difference between hydraulic pump assembly A and hydraulic pump assembly B is proportionally distributed , determine the target speed of hydraulic pump assembly A based on the speed difference and the target speed of hydraulic pump assembly B ; The speed difference is expressed as: Indicates the speed difference between hydraulic pump assembly A and hydraulic pump assembly B, represents the power balance distribution coefficient, Indicates the total speed requirement, Indicates the current speed of hydraulic pump assembly A, Indicates the current speed of hydraulic pump assembly B; The target speed of the hydraulic pump assembly A is expressed as: represents the target speed of hydraulic pump assembly A, Indicates the current speed of hydraulic pump assembly A, Indicates the speed difference between hydraulic pump assembly A and hydraulic pump assembly B, Indicates the target flow of hydraulic pump component A, Indicates the flow required by the actuator; The target speed of the hydraulic pump assembly B is expressed as: represents the target speed of hydraulic pump assembly B, Indicates the total speed requirement, represents the target speed of the hydraulic pump assembly A; like , then adjust independently as well as , an adjustment strategy of reducing high speed and increasing low speed is adopted to gradually balance the speeds of hydraulic pump component A and hydraulic pump component B. The speed adjustment amount is 40rpm each time, and fuzzy PID control is used to quickly adjust the speeds of the two pumps.

6. The multifunctional and efficient hydraulic station according to claim 1, characterized in that: It also includes a multi-layer partition assembly and a high-efficiency filter installed in the hydraulic station body, the multi-layer partition assembly includes partitions A, B and C which are linearly arranged in the oil tank and divide the oil tank into four areas A, B, C and D. Four oil passages are opened at two-thirds of the height of partition A, the partition B adopts a porous partition, and an array of small holes are opened in an area above one-half of the height of partition B. A V-shaped partition is installed at the bottom of area B to make the bottom of area B funnel-shaped, and a slag discharge pipe with a valve is connected to the lowest point thereof, and the partition C adopts a screen partition.

7. The multifunctional and efficient hydraulic station according to claim 6, characterized in that: The hydraulic pump assembly A and the hydraulic pump assembly B have the same structure. The hydraulic pump assembly A includes an oil tank A, a motor A and a hydraulic pump A. The two oil tanks are equipped with independent oil inlets, oil outlets, oil drain ports and liquid level monitoring devices, and the oil between the two can be supplemented or isolated through a connecting pipe with a control valve.

8. The multifunctional and efficient hydraulic station according to claim 7, characterized in that: An oil temperature sensor and a cooler are installed inside each oil tank. The oil temperature sensor monitors the oil temperature in real time. When the oil temperature exceeds the set upper limit, the cooler automatically starts to dissipate heat. The cooler adopts an efficient fin structure, combined with forced air cooling or water cooling, to quickly reduce the oil temperature. At the same time, the connecting pipe between the two oil tanks can realize the exchange of hot oil and cold oil. The return oil of the multifunctional and efficient hydraulic station is installed with an oil return filter.

9. The multifunctional and efficient hydraulic station according to any one of claims 6 to 8, characterized in that: The multifunctional and efficient hydraulic station also includes two groups of operating control valves and corresponding connecting pipelines and control circuits.

Images