Hydraulic variable displacement pump with real-time detection function for hydraulic station

Abstract

The hydraulic variable displacement pump with the real-time detection function for the hydraulic station comprises a pump body, a flow sensor, a power source and a wire, the pump body is fixedly provided with a detection assembly, the two sides of the pump body are fixedly provided with blocking assemblies, each blocking assembly comprises a single-chip microcomputer, the upper end of each single-chip microcomputer is fixedly provided with a connecting port, and the connecting port is connected with the power source. The alarm is fixedly installed at the upper end of the power source, and the flow sensor is used for detecting the flow and the flow speed of liquid in the variable-capacity pump in real time. According to the utility model, the flow rate and the flow of liquid in the variable-volume pump are detected at any time through the flow sensor, and the noise in the variable-volume pump is detected in real time through the cooperation of the noise sensor, and when the flow sensor and the noise sensor detect abnormities at the same time, the noise in the variable-volume pump is detected; the single-chip microcomputer can directly control the blocking assembly to conduct circulation isolation on a liquid inlet and a liquid outlet of the hydraulic variable-volume pump, and liquid is prevented from circulating in the hydraulic variable-volume pump.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic variable displacement pump technology, specifically a hydraulic variable displacement pump for a hydraulic station with real-time detection function. Background Technology

[0002] A hydraulic piston pump is a type of hydraulic variable displacement pump and an important component of a hydraulic system. During operation, it relies on the reciprocating motion of a piston within a cylinder to change the volume of the sealed working chamber, thereby achieving the purpose of oil suction and pressure. Piston pumps have advantages such as high rated pressure, compact structure, high efficiency, and convenient flow rate adjustment.

[0003] The prior art, disclosed in CN216429898U, provides an improved hydraulic piston pump, including a piston pump body. A noise monitoring device is mounted on one side of the cylinder of the piston pump body. The noise monitoring device includes a pair of retaining rings, divided into a right half retaining ring and a left half retaining ring, with identical structures. Several sets of noise frequency detection probes are equidistantly installed on the inner sides of both the right and left half retaining rings. Rubber pads are fixedly adhered to both sides of the right and left half retaining rings near the sets of noise frequency detection probes. This improved hydraulic piston pump, through the noise monitoring device installed on the outside of its cylinder, can achieve real-time monitoring and detection of noise within the hydraulic piston pump cylinder. This allows for time-based detection of the movement conditions of its internal working components, ensuring timely feedback to maintenance personnel in case of malfunction, enabling timely shutdown and maintenance, and thus preventing significant damage to the hydraulic piston pump during operation.

[0004] The aforementioned patent mainly involves installing a noise monitoring device on one side of the hydraulic piston pump to promptly notify maintenance personnel when abnormal noises occur inside the pump. However, this method of preventing significant damage to the hydraulic piston pump during operation lacks any protective measures and merely serves to alert maintenance personnel. This can lead to significant damage to the pump if maintenance personnel are slow to receive the signal or reach the designated location, greatly reducing the practicality of the hydraulic piston pump. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a hydraulic variable displacement pump for a hydraulic station with real-time detection function, thus solving the above-mentioned technical problems.

[0006] To achieve the above objectives, this utility model provides a hydraulic variable displacement pump for a hydraulic power station with real-time detection functionality. The pump includes a pump body, a flow sensor, a power supply, and wiring. A detection component for real-time noise monitoring is fixedly installed in the middle of the pump body. Blocking components for blocking liquid flow are fixedly installed at the upper ends of the pump body's inlet and outlet. The power supply is connected to the blocking components via the wiring. Each blocking component includes a microcontroller with a connection port fixedly installed at its upper end for connecting to the wiring. An alarm is fixedly installed at the upper end of the power supply. The flow sensor detects the flow rate and velocity of the liquid inside the variable displacement pump in real time. The alarm, detection components, and flow sensor are all remotely connected to the microcontroller. This remote connection allows the microcontroller to directly and effectively control the alarm, detection components, and flow sensor, significantly improving the intelligence of the hydraulic variable displacement pump's operation.

[0007] Furthermore, the detection component includes a fastening component, an inner hollow locking ring, and a buffer component. Two inner hollow locking rings are fixedly connected at their tops via the fastening component. The buffer component is located at the end of the inner hollow locking ring furthest from the fastening component. Several noise sensors are fixedly mounted on the inner hollow locking rings. A processor is mounted on the side of each even-numbered inner hollow locking ring that is close to it. The noise sensors are electrically connected to the processor through slots inside the inner hollow locking rings. This electrical connection allows the signals detected by the noise sensors to be transmitted to the processor immediately for averaging, improving the accuracy of noise detection in hydraulic variable displacement pumps with real-time detection capabilities.

[0008] Furthermore, the buffer assembly includes bolts, a mounting shaft, and a spring. The mounting shaft passes through the ends of the two hollow locking rings away from the fastening assembly. The spring surrounds the outside of the mounting shaft and is located inside the ends of the two hollow locking rings away from the fastening assembly. The mounting shaft is connected to the hollow locking rings by bolts. This connection between the mounting shaft and the hollow locking rings makes the internal structure of the hydraulic variable displacement pump with real-time monitoring function more robust and reliable, greatly improving the operational safety of the hydraulic variable displacement pump with real-time monitoring function.

[0009] Furthermore, the blocking assembly also includes an insulating cloth, a lower pressure plate, an upper fixing plate, and a liquid inlet. The blocking assembly further includes an electric actuator, the insulating cloth, the lower pressure plate, the upper fixing plate, and the liquid inlet. The electric actuator is located at the end of the microcontroller furthest from the connection port. A vertical groove is formed in the middle of the telescopic end of the electric actuator, and the middle portion of the insulating cloth is located within this vertical groove. The upper fixing plate is fixedly installed on the top of the inner wall of the liquid inlet. The telescopic end of the electric actuator passes through the liquid inlet and the upper fixing plate, and is fixedly connected to the lower pressure plate. The electric actuator is electrically connected to the microcontroller. This electrical connection allows the microcontroller to directly control the extension and retraction of the electric actuator, improving the intelligence of the hydraulic variable displacement pump in the hydraulic station with real-time detection function.

[0010] Furthermore, one end of the insulating cloth is fixedly connected to the lower pressure plate, and the other end, away from the lower pressure plate, is fixedly connected to the upper fixed plate. This allows the insulating cloth to move accordingly with the movement of the electric actuator, improving the overall integrity of the internal structure of the hydraulic variable displacement pump for the hydraulic station with real-time monitoring function.

[0011] Furthermore, the insulating cloth has a circular cross-section when unfolded. The insulating cloth is used to block the inlet and outlet of the pump body. When unfolded, the insulating cloth has a thick circular shape, so that when the insulating cloth is opened, the flow can be completely cut off from the hydraulic variable displacement pump of the hydraulic station with real-time detection function, thereby improving the practicality of the hydraulic variable displacement pump of the hydraulic station with real-time detection function.

[0012] Furthermore, the insulating cloth is made of nylon. The nylon material makes the insulating cloth fold and unfold more smoothly, improving the practicality of the hydraulic variable displacement pump used in hydraulic stations with real-time monitoring capabilities. Beneficial effects

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention uses a flow sensor to continuously monitor the liquid velocity and flow rate within the variable displacement pump, and combines this with a noise sensor to monitor the noise within the pump in real time. When both the flow sensor and the noise sensor detect an anomaly, the microcontroller directly controls the blocking component to isolate the flow of liquid at the inlet and outlet of the hydraulic variable displacement pump, thus preventing liquid from flowing inside the pump. This significantly enhances the ability of the hydraulic variable displacement pump in the hydraulic power station with real-time monitoring to detect and handle operational anomalies. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a hydraulic variable displacement pump for a hydraulic station with real-time detection function according to this utility model;

[0016] Figure 2 This is a partially enlarged three-dimensional structural diagram of A of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the blocking component of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the detection component of this utility model;

[0019] Figure 5 This is a partially enlarged three-dimensional structural diagram of the present invention, B.

[0020] Figure 6 This is a flowchart illustrating the operation of a hydraulic variable displacement pump for a hydraulic station with real-time detection function, according to this utility model.

[0021] In the diagram: 1. Pump body; 2. Detection component; 3. Alarm; 4. Blocking component; 5. Flow sensor; 6. Power supply; 7. Wire; 8. Microcontroller; 9. Connector; 10. Electric actuator; 11. Insulation cloth; 12. Lower pressure plate; 13. Upper fixing plate; 14. Liquid inlet; 15. Fastening component; 16. Hollow locking ring; 17. Processor; 18. Noise sensor; 19. Buffer component; 20. Bolt; 25. Mounting shaft; 25. Spring; 25. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0023] Example

[0024] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6This application provides a further detailed description. A hydraulic variable displacement pump for a hydraulic station with real-time detection function includes a pump body 1, a flow sensor 5, a power supply 6, and wires 7. A detection component 2 for real-time noise monitoring is fixedly installed in the middle of the pump body 1. Blocking components 4 for blocking liquid flow are fixedly installed at the upper ends of the inlet and outlet positions of the pump body 1. The power supply 6 is connected to the blocking components 4 via wires 7. The blocking components 4 include a microcontroller 41, with a connection port 42 fixedly installed at its upper end for connection to the wires 7. An alarm 3 is fixedly installed at the upper end of the power supply 6. The flow sensor 5 is used for real-time detection. The flow rate and velocity of the liquid inside the variable displacement pump, alarm 3, detection component 2, and flow sensor 5 are all remotely connected to the microcontroller 41. Detection component 2 includes a fastening component 21, an inner hollow locking ring 22, and a buffer component 25. Two inner hollow locking rings 22 are fixedly connected at the top via the fastening component 21. The buffer component 25 is located at the end of the inner hollow locking ring 22 away from the fastening component 21. Several noise sensors 24 are fixedly installed on the inner hollow locking ring 22. A processor 23 is installed on the side of each even-numbered inner hollow locking ring 22 that is close to each other. The noise sensors 24 are located within the inner hollow locking ring 22. The empty slot of the part is electrically connected to the processor 23. The buffer assembly 25 includes a bolt 251, a mounting shaft 252, and a spring 253. The mounting shaft 252 passes through the end of the two inner hollow locking rings 22 away from the fastening assembly 21. The spring 253 surrounds the outside of the mounting shaft 252 and is located inside the end of the two inner hollow locking rings 22 away from the fastening assembly 21. The mounting shaft 252 is connected to the inner hollow locking rings 22 by the bolt 251. The blocking assembly 4 also includes an electric push rod 43, an isolation cloth 44, a lower pressure plate 45, an upper fixing plate 46, and a liquid inlet 47. The electric push rod 43 is located on the microcontroller 41 away from the connection port 42. At one end, the telescopic end of the electric actuator 43 has a vertical groove in the middle. The middle part of the insulating cloth 44 is located in the vertical groove. The upper fixing plate 46 is fixedly installed on the top of the inner wall of the liquid inlet 47. The telescopic end of the electric actuator 43 passes through the liquid inlet 47 and the upper fixing plate 46, and is fixedly connected to the lower pressure plate 45. The electric actuator 43 is electrically connected to the microcontroller 41. One end of the insulating cloth 44 is fixedly connected to the lower pressure plate 45, and the end away from the lower pressure plate 45 is fixedly connected to the upper fixing plate 46. When the insulating cloth 44 is unfolded, its cross-section is circular. The insulating cloth 44 is used to seal the inlet and outlet of the pump body. The insulating cloth 44 is made of nylon.

[0025] Among them, the diameter of the liquid inlet and outlet of the hydraulic variable displacement pump of the hydraulic station with real-time detection function is smaller than the diameter of the isolation cloth 44 after it is unfolded, so that when the isolation cloth 44 is fully unfolded, it can directly isolate the liquid inlet and outlet of the hydraulic variable displacement pump of the hydraulic station with real-time detection function.

[0026] Since multiple noise sensors 24 are connected to the processor 23 via wires, when the signals detected by the multiple noise sensors 24 are transmitted to the processor 23, the processor 23 can perform an averaging operation on these signal data in real time, thereby making the detected data more accurate.

[0027] The lower end of the hollow locking ring 22 can move on the mounting shaft 252 and be pushed outward by the spring 253 at all times. This is so that when the entire detection component 2 is fitted onto the pump body 1, the spring 253 can prevent the detection component 2 from being clamped too tightly and causing damage to the surface of the pump body 1.

[0028] Since the alarm 3, flow sensor 5, electric actuator 43, and noise sensor 24 are all remotely connected to the microcontroller 41, the microcontroller 41 can control the operation or stop of the alarm 3, flow sensor 5, electric actuator 43, and noise sensor 24 in real time.

[0029] The working principle of this utility model is explained below: Unless otherwise specified, all internal mechanical structures of the hydraulic variable displacement pump with real-time detection function are threaded. To allow for a more intuitive observation of the technical features, bolt connections are appropriately concealed in the figure. During use, the detection component 2, fixedly installed on the pump body 1, can detect the noise generated by the pump in real-time through internal noise sensors 24. The noise values ​​detected by multiple noise sensors 24 are averaged by the processor 23 and transmitted to the microcontroller 41 via remote connection. When the value exceeds the threshold set internally by the microcontroller 41, the microcontroller 41 directly triggers the alarm 3 to alert the operator that the hydraulic variable displacement pump with real-time detection function has malfunctioned. Simultaneously, the flow sensor 5 can detect the flow rate and velocity of the liquid inside the hydraulic variable displacement pump in real-time. When the flow sensor 5 detects an abnormality in the flow rate of the liquid inside the pump, it also triggers the alarm 3 via remote connection. The microcontroller 41 controls the alarm 3 to sound, alerting the operator that the hydraulic variable displacement pump in the hydraulic station with real-time detection function has malfunctioned. When the noise sensor 24 and the flow sensor 5 simultaneously detect the malfunction, the microcontroller 41 directly controls the electric actuator 43 to extend downwards. The extended electric actuator 43 fully opens the insulating cloth 44, causing the lower pressure plate 45 to be embedded into the groove in the inlet 47 for fixation. At this time, because the insulating cloth 44 is circular and fully unfolded, liquid can no longer flow in or out of the pump with real-time detection function. The hydraulic variable displacement pump with real-time detection function prevents the pump from stopping due to erroneous signals from the noise sensor 24 or flow sensor 5. Simultaneously, the alarm 3 sounds to alert personnel to perform maintenance on the pump. This ensures that when an accurate fault signal is detected within the pump, it can directly stop the flow of liquid, greatly improving its practicality.

[0030] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A hydraulic variable displacement pump for a hydraulic power station with real-time detection function, characterized in that, The pump body (1), flow sensor (5), power supply (6), and wire (7) are included. A detection component (2) for real-time noise monitoring is fixedly installed in the middle of the pump body (1). A blocking component (4) for blocking liquid flow is fixedly installed at the upper end of the inlet and outlet of the pump body (1). The power supply (6) is connected to the blocking component (4) by wire (7). The blocking component (4) includes a microcontroller (41). A connection port (42) is fixedly installed at the upper end of the microcontroller (41). The connection port (42) is used to connect to the wire (7). An alarm (3) is fixedly installed at the upper end of the power supply (6). The flow sensor (5) is used to detect the flow rate and velocity of the liquid inside the variable displacement pump in real time. The alarm (3), detection component (2), and flow sensor (5) are all remotely connected to the microcontroller (41).

2. A hydraulic variable displacement pump for a hydraulic station with real-time detection function according to claim 1, characterized in that: The detection component (2) includes a fastening component (21), an inner hollow locking ring (22), and a buffer component (25). The two inner hollow locking rings (22) are fixedly connected at the top through the fastening component (21). The buffer component (25) is located at the end of the inner hollow locking ring (22) away from the fastening component (21). Several noise sensors (24) are fixedly installed on the inner hollow locking ring (22). A processor (23) is installed on the side of the even number of inner hollow locking rings (22) that are close to each other. The noise sensors (24) are electrically connected to the processor (23) through the hollow groove inside the inner hollow locking ring (22).

3. A hydraulic variable displacement pump for a hydraulic station with real-time detection function according to claim 2, characterized in that: The buffer assembly (25) includes a bolt (251), a mounting shaft (252), and a spring (253). The mounting shaft (252) passes through the two hollow locking rings (22) at the end away from the fastening assembly (21). The spring (253) surrounds the outside of the mounting shaft (252) and is located inside the two hollow locking rings (22) at the end away from the fastening assembly (21). The mounting shaft (252) is connected to the hollow locking rings (22) by the bolt (251).

4. A hydraulic variable displacement pump for a hydraulic station with real-time detection function according to claim 1, characterized in that: The blocking assembly (4) further includes an electric push rod (43), an insulating cloth (44), a lower pressure plate (45), an upper fixing plate (46), and a liquid inlet (47). The electric push rod (43) is located at the end of the microcontroller (41) away from the connection port (42). A vertical groove is opened in the middle of the telescopic end of the electric push rod (43). The middle part of the insulating cloth (44) is located in the vertical groove. The upper fixing plate (46) is fixedly installed on the top of the inner wall of the liquid inlet (47). The telescopic end of the electric push rod (43) passes through the liquid inlet (47) and the upper fixing plate (46) and is fixedly connected to the lower pressure plate (45). The electric push rod (43) is electrically connected to the microcontroller (41).

5. A hydraulic variable displacement pump for a hydraulic station with real-time detection function according to claim 4, characterized in that: One end of the insulating cloth (44) is fixedly connected to the lower pressure plate (45), and the other end away from the lower pressure plate (45) is fixedly connected to the upper fixing plate (46).

6. A hydraulic variable displacement pump for a hydraulic station with real-time detection function according to claim 4, characterized in that: The isolation cloth (44) has a circular cross-section when unfolded, and the isolation cloth (44) is used to seal the inlet and outlet of the pump body.

7. A hydraulic variable displacement pump for a hydraulic station with real-time detection function according to claim 4, characterized in that: The insulating cloth (44) is made of nylon.

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