A hydraulic oil on-line monitoring system

Abstract

The utility model provides a kind of hydraulic oil on-line monitoring system, it is related to hydraulic system state monitoring technical field, comprising: quality monitoring unit, quality monitoring unit includes detection equipment and oil reservoir, oil reservoir is used to store hydraulic oil, and detection equipment can monitor the quality of hydraulic oil in oil reservoir;Oil taking unit, oil taking unit is configured to take out hydraulic oil from the oil return pipe of the equipment to be monitored;Master control unit is configured to receive the monitoring result of hydraulic oil quality monitoring module, and judges the quality of hydraulic oil according to monitoring result;The system can monitor the quality data of hydraulic oil in real time, comparative analysis is carried out, and the result of each acquisition analysis is stored and uploaded, forms historical data to facilitate to view and analyze the reason of oil quality change, and improvement measures are proposed, greatly improve the accuracy, timeliness of data, the effectiveness of data analysis, improve equipment operating efficiency and production capacity, reduce equipment maintenance and total lubrication cost.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic system condition monitoring technology, and in particular to an online hydraulic oil monitoring system. Background Technology

[0002] During the lifecycle of machinery, normal hydraulic oil often deteriorates and fails due to factors such as the introduction of rainwater, foreign matter intrusion, oxidation, mixing of different oil types, and wear debris from actuators. This exacerbates wear and corrosion in the machinery, increasing the risk of accidents in the hydraulic system. Currently, the main method for monitoring hydraulic oil quality is to periodically take oil samples and send them to professional oil testing institutions for analysis. While this method ensures accuracy, it has several drawbacks: the sampling process involves a significant amount of human intervention, compromising its authenticity; the monitoring process is cumbersome and time-consuming, making real-time monitoring impossible; and during monitoring, each testing method often only targets one or a few indicators of the hydraulic oil, making it difficult to comprehensively assess the overall quality of the hydraulic oil. Utility Model Content

[0003] The purpose of this invention is to provide an online hydraulic oil monitoring system to achieve real-time monitoring of hydraulic oil quality.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an online hydraulic oil monitoring system for detecting the hydraulic oil in a device under monitoring, comprising: a quality monitoring unit, the quality monitoring unit including a testing device and an oil storage tank, the oil storage tank for storing hydraulic oil, the testing device being able to monitor the quality of the hydraulic oil in the oil storage tank; an oil extraction unit, the oil extraction unit being configured to extract the hydraulic oil from the return oil pipe of the device under monitoring, the oil extraction unit including a hydraulic oil pipe, a ball valve and a gear pump, the input end of the gear pump being connected to the return oil pipe through the hydraulic oil pipe, the output end of the gear pump being connected to the oil storage tank, the ball valve being located on the hydraulic oil pipe; a main control unit, configured to receive the monitoring results of the hydraulic oil quality monitoring module and determine the quality of the hydraulic oil based on the monitoring results; and a visualization unit, configured to display the judgment result of the hydraulic oil quality.

[0005] Furthermore, the main control unit includes: an information data comparison module configured to determine the quality of the hydraulic oil based on the monitoring results; and a data transmission module configured to receive the monitoring results from the quality monitoring unit and transmit the monitoring results to the information data comparison module.

[0006] Furthermore, the monitoring system also includes an alarm unit configured to trigger an alarm signal based on the quality of the hydraulic oil in the main control unit.

[0007] Furthermore, the monitoring system also includes an abnormal state recording unit, which is configured to record the judgment result of the abnormal hydraulic oil quality.

[0008] Furthermore, the detection device includes a water volume sensor, a viscosity sensor, and a temperature sensor;

[0009] The water content sensor can monitor the water content of the hydraulic oil, the viscosity sensor can monitor the viscosity of the hydraulic oil, and the temperature sensor can monitor the temperature of the hydraulic oil.

[0010] Furthermore, the detection device also includes a contamination sensor and a metal abrasive detector;

[0011] The contamination sensor can monitor the contamination level of the hydraulic oil, and the metal abrasive detector can monitor the concentration of metal abrasive particles in the hydraulic oil.

[0012] Furthermore, the quality monitoring unit also includes a solenoid valve, which is connected to the output end of the oil storage tank.

[0013] Analysis shows that this utility model discloses an online hydraulic oil monitoring system. This system can monitor the quality data of hydraulic oil in real time, perform comparative analysis, and store and upload the results of each collection and analysis to form historical data. This facilitates the analysis of the causes of changes in oil quality and proposes targeted improvement measures, greatly improving the accuracy and timeliness of data, the effectiveness of data analysis, improving equipment operating efficiency and production capacity, and reducing the total cost of equipment maintenance and lubrication. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein:

[0015] Figure 1 A schematic diagram of the structure of an embodiment of this utility model.

[0016] Explanation of reference numerals in the attached figures: Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation of the present invention and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present invention without departing from the scope or spirit of the invention. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present invention encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0018] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected," "linked," and "set up" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection through intermediate components; a wired connection, a radio connection, or a wireless communication signal connection. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0019] The accompanying drawings illustrate one or more examples of the present invention. The detailed description uses numerals and letters to refer to features in the drawings. Similar or analogous reference numerals in the drawings and description have been used to refer to similar or analogous parts of the present invention. As used herein, the terms “first,” “second,” “third,” and “fourth,” etc., are used interchangeably to distinguish one component from another and are not intended to indicate the location or importance of a single component.

[0020] like Figure 1 As shown, according to an embodiment of the present invention, an online hydraulic oil monitoring system is provided for detecting the hydraulic oil in the equipment to be monitored, including:

[0021] The quality monitoring unit is configured to monitor the quality of the hydraulic oil.

[0022] The main control unit is configured to receive the monitoring results from the hydraulic oil quality monitoring module and determine the quality of the hydraulic oil based on the monitoring results.

[0023] Specifically, the main control unit includes: an information data comparison module, configured to determine the quality of hydraulic oil based on monitoring results; and a data transmission module, configured to receive the monitoring results from the quality monitoring unit and transmit the monitoring results to the information data comparison module.

[0024] Specifically, the aforementioned main control unit will compare the acquired monitoring results with preset standards to determine the quality of the hydraulic oil.

[0025] The visualization unit is configured to display the judgment results of the hydraulic oil quality.

[0026] This system adopts a modular distributed architecture design, enabling real-time data interaction between units through an industrial bus protocol. The quality monitoring unit includes a multi-sensor fusion array, with each sensor independently configured with a sampling channel, forming a parallel detection network to ensure the independence of different parameter detections. The visualization unit integrates a human-machine interface, supporting multi-dimensional data visualization. The system constructs a closed-loop feedback mechanism, achieving dynamic tracking of hydraulic oil quality through a monitoring-analysis-display cyclical working mode. Each unit employs redundant power supply and communication link design to ensure continuous operational reliability under critical operating conditions.

[0027] The monitoring system also includes an alarm unit, which is configured to trigger an alarm signal based on the quality of the hydraulic oil in the main control unit.

[0028] Specifically, the alarm unit can be integrated with an acoustic alarm device or an optical alarm device in actual use.

[0029] The monitoring system also includes an abnormal state recording unit, which is configured to record the judgment results of abnormal hydraulic oil quality.

[0030] Specifically, the quality monitoring unit includes a water level sensor, a viscosity sensor, and a temperature sensor; the water level sensor monitors the water content of the hydraulic oil, the viscosity sensor monitors the viscosity of the hydraulic oil, and the temperature sensor monitors the temperature of the hydraulic oil. The quality monitoring unit also includes a contamination sensor and a metal abrasive detector; the contamination sensor monitors the contamination level of the hydraulic oil, and the metal abrasive detector monitors the concentration of metal abrasive particles in the hydraulic oil.

[0031] Specifically, moisture detection can be performed using the principle of dielectric constant change, analyzing the polarization characteristics of oil through radio frequency signals; viscosity detection can be performed using the vibration damping method, inverting the fluid viscosity coefficient through the amplitude attenuation characteristics of the resonator; contamination detection can be based on the principle of optical scattering, analyzing the contamination level through the light intensity attenuation spectrum of particulate matter; and metal abrasive particle detection can integrate electromagnetic induction and microscopic imaging dual modes, with ferromagnetic particles detected by changes in magnetic flux and non-ferrous metal particles identified by morphological features.

[0032] Specifically, the aforementioned sensor array employs a spatially staggered layout design to eliminate detection interference. Each sensor is equipped with a self-calibration module to perform baseline correction periodically. The system establishes a sensor health assessment model and uses output signal stability analysis to predict faults. The detection unit housing features a hydrodynamically optimized structure to prevent oil turbulence from affecting detection accuracy.

[0033] Specifically, the monitoring system also includes an oil sampling unit, which is configured to extract hydraulic oil from the return oil pipe of the device under monitoring. The return oil pipe is the return oil pipeline of the hydraulic oil of the device under monitoring.

[0034] Specifically, the oil extraction unit includes a hydraulic oil pipe, a ball valve, and a gear pump. The input end of the gear pump is connected to the return oil pipe via the hydraulic oil pipe, and the output end of the gear pump is connected to the quality monitoring unit. The ball valve is located on the hydraulic oil pipe. The gear pump guides the hydraulic oil from the return oil pipe to the oil storage tank via the hydraulic oil pipe. The ball valve seals the hydraulic oil pipe to prevent hydraulic oil leakage during replacement if the equipment is damaged later.

[0035] Specifically, the quality monitoring unit also includes an oil storage tank and a solenoid valve. The oil storage tank is used to store the hydraulic oil delivered by the oil extraction unit. The solenoid valve is connected to the output end of the oil storage tank. The oil storage tank can hold the hydraulic oil to be tested. When the solenoid valve is opened, the hydraulic oil in the oil storage tank can be discharged.

[0036] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects: This utility model can monitor the quality of hydraulic oil online, and the monitoring content includes: oil viscosity monitoring, moisture monitoring, contamination monitoring, abrasive particle monitoring, etc. By monitoring the above content online, the quality of hydraulic oil can be effectively, in real time, and from multiple perspectives, thereby analyzing the current status of the hydraulic oil and reducing hydraulic system failures caused by hydraulic oil.

[0037] Compared with existing technologies, this system can monitor hydraulic oil quality data in real time, perform comparative analysis, and store and upload the results of each collection and analysis to form historical data. This facilitates the analysis of the causes of changes in oil quality and proposes targeted improvement measures, greatly improving the accuracy, timeliness, and effectiveness of data analysis. It also improves equipment operating efficiency and production capacity, and reduces the total cost of equipment maintenance and lubrication.

[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hydraulic oil online monitoring system for detecting the hydraulic oil in the equipment to be monitored, characterized in that, include: A quality monitoring unit, comprising a testing device and an oil storage tank, wherein the oil storage tank is used to store hydraulic oil and the testing device is capable of monitoring the quality of the hydraulic oil in the oil storage tank; An oil sampling unit is configured to extract hydraulic oil from the return oil pipe of the device to be monitored. The oil sampling unit includes a hydraulic oil pipe, a ball valve, and a gear pump. The input end of the gear pump is connected to the return oil pipe through the hydraulic oil pipe, and the output end of the gear pump is connected to the oil storage tank. The ball valve is located on the hydraulic oil pipe. The main control unit is configured to receive the monitoring results from the hydraulic oil quality monitoring module and determine the quality of the hydraulic oil based on the monitoring results. The visualization unit is configured to display the judgment results of the quality of the hydraulic oil.

2. The hydraulic oil online monitoring system according to claim 1, characterized in that, The main control unit includes: The information data comparison module is configured to determine the quality of the hydraulic oil based on the monitoring results; The data transmission module is configured to receive the monitoring results from the quality monitoring unit and transmit the monitoring results to the information data comparison module.

3. The hydraulic oil online monitoring system according to claim 1, characterized in that, The monitoring system also includes an alarm unit, which is configured to trigger an alarm signal based on the quality of the hydraulic oil in the main control unit.

4. The hydraulic oil online monitoring system according to claim 3, characterized in that, The monitoring system also includes an abnormal state recording unit, which is configured to record the judgment result of the abnormal hydraulic oil quality.

5. The hydraulic oil online monitoring system according to claim 1, characterized in that, The detection equipment includes a water volume sensor, a viscosity sensor, and a temperature sensor; The water content sensor can monitor the water content of the hydraulic oil, the viscosity sensor can monitor the viscosity of the hydraulic oil, and the temperature sensor can monitor the temperature of the hydraulic oil.

6. The hydraulic oil online monitoring system according to claim 5, characterized in that, The detection equipment also includes a contamination sensor and a metal abrasive detector; The contamination sensor can monitor the contamination level of the hydraulic oil, and the metal abrasive detector can monitor the concentration of metal abrasive particles in the hydraulic oil.

7. The hydraulic oil online monitoring system according to claim 1, characterized in that, The quality monitoring unit also includes a solenoid valve, which is connected to the output end of the oil storage tank.

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