A multifunctional protective cover for a centrifugal pump coupling

Abstract

The utility model relates to the technical field of chemical industry auxiliary equipment, propose a multifunctional protective cover of centrifugal pump shaft coupling. The protective cover includes: protective cover casing, is equipped with openable apron mechanism and switch component that links with apron mechanism on protective cover casing, apron mechanism is connected with protective cover casing through hinge mechanism, lighting mechanism, lighting mechanism sets up in the inner wall of protective cover casing is used for providing the lighting for the shaft coupling in the inside of protective cover casing, wherein, when apron mechanism opens, switch component triggers the lighting mechanism and lights up, when apron mechanism closes, switch component makes lighting mechanism extinguish. The present application introduces automatic lighting and convenient opening mechanism, has improved the efficiency and security of centrifugal pump shaft coupling inspection operation significantly, fundamentally solved a series of problems caused by insufficient lighting and complicated operation.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology in the chemical industry, and in particular to a multifunctional protective cover for a centrifugal pump coupling. Background Technology

[0002] In the vanadium trioxide leaching process of chemical and metallurgical enterprises, a three-dip, four-wash intermittent leaching process is commonly used. This process requires the large amount of qualified liquid produced after washing the clinker to be transported to storage tanks in various areas using centrifugal pumps of different models. The effective transfer of qualified liquid between tanks depends entirely on the continuous and normal operation of the centrifugal pumps, and the stable operation of a large number of centrifugal pumps directly depends on the reliability of the coupling connection. Therefore, the performance of the centrifugal pump coupling protective cover is crucial, and traditional single protective performance is no longer sufficient to meet the needs of current high-efficiency production.

[0003] Traditional centrifugal pump coupling protective covers have many shortcomings, particularly in the inspection process. Firstly, during routine periodic inspections, the lack of adequate lighting inside the cover severely limits the visibility for inspectors. Whether opening the top cover or the side observation port, without sufficient illumination, it is difficult to effectively inspect critical conditions such as misalignment of the coupling or wear on the elastic gaskets. Secondly, the disassembly and installation of traditional protective covers are lengthy and cumbersome, significantly reducing the efficiency of inspections and extending the downtime of the centrifugal pump. These deficiencies not only affect production efficiency but also create safety hazards.

[0004] Therefore, there is an urgent need to improve the traditional centrifugal pump coupling protective cover to address its inherent defects in terms of lighting conditions and ease of operation. Utility Model Content

[0005] In view of this, and in view of the inherent defects of existing centrifugal pump coupling protective covers in terms of lighting conditions and ease of operation, this disclosure provides a multi-functional protective cover for centrifugal pump couplings. The multi-functional protective cover for centrifugal pump couplings provided by this utility model has an automatic lighting function and a convenient opening structure, aiming to significantly improve the efficiency and safety of inspection operations.

[0006] This disclosure provides a multifunctional protective cover for a centrifugal pump coupling, comprising: A protective cover housing, wherein the protective cover housing is provided with an openable cover mechanism and a switch assembly that is linked to the cover mechanism, and the cover mechanism is connected to the protective cover housing via a hinge mechanism; A lighting mechanism, disposed on the inner wall of the protective cover housing, is used to provide lighting for the coupling located inside the protective cover housing; When the cover mechanism is opened, the switch assembly triggers the lighting mechanism to light up; when the cover mechanism is closed, the switch assembly turns off the lighting mechanism.

[0007] In some embodiments, the multifunctional protective cover for the centrifugal pump coupling further includes a coupling misalignment monitoring mechanism. The coupling misalignment monitoring mechanism includes a magnetic moment sensor, which is mounted on the side wall of the protective cover housing via a sensor fixing nut. When the magnetic moment sensor detects that the radial displacement of the coupling exceeds a preset threshold, it triggers an electrical system action to cut off the drive power of the centrifugal pump.

[0008] In some embodiments, the position of the detection end of the magnetic moment sensor is adjustable and is locked in place by a sensor locking nut.

[0009] In some embodiments, the magnetic moment sensor is electrically connected to a sensor indicator light, which is disposed on the outer surface of the protective housing.

[0010] In some embodiments, the lighting mechanism is an LED lighting strip, which is disposed on the inner sidewall of the protective cover housing.

[0011] In some embodiments, the switch assembly is a mechanical push switch, which is fixedly mounted on the protective cover housing and its position corresponds to the cover mechanism, such that when the cover mechanism is opened, the mechanical push switch is released to illuminate the lighting mechanism, and when the cover mechanism is closed, the mechanical push switch is pressed to extinguish the lighting mechanism.

[0012] In some embodiments, the cover mechanism includes an opening and closing cover, an opening handle disposed on the opening and closing cover, and a latching assembly for locking the opening and closing cover in the closed state.

[0013] In some embodiments, the snap-fit ​​assembly is a stainless steel snap-fit.

[0014] In some embodiments, the hinge mechanism is a cover plate connecting to a lotus leaf.

[0015] In some embodiments, the bottom of the protective cover housing is provided with protective cover fixing bolt holes.

[0016] By adopting the above technical solution, this utility model has at least the following beneficial effects: The multi-functional protective cover for centrifugal pump couplings provided in this application significantly improves the efficiency and safety of centrifugal pump coupling inspection operations by introducing automatic lighting and a convenient opening mechanism, fundamentally solving a series of problems caused by insufficient lighting and cumbersome operation. Specifically, by setting up a lighting mechanism on the inner wall of the protective cover housing and cooperating with a switch assembly linked to the cover mechanism, an automated lighting effect is achieved that lights up when the cover is opened and turns off when the cover is closed. This design directly solves the problem of insufficient necessary lighting facilities inside the protective cover, making it difficult for inspectors to effectively check the condition of the coupling. It provides inspectors with sufficient and stable internal lighting, ensuring that the inspection of critical conditions such as coupling misalignment and wear of elastic gaskets can be carried out accurately and smoothly. The cover mechanism connected by a hinge mechanism, together with the switch assembly, forms an integrated quick-opening and closing module. This design eliminates the need for cumbersome disassembly of the entire protective cover during inspection; simply opening the cover simultaneously completes the lighting trigger and the exposure of the inspection channel, greatly simplifying the operation process. This directly addresses and solves the drawbacks of traditional protective cover disassembly and installation processes, which are lengthy and cumbersome, reduce inspection efficiency, and extend equipment downtime, thereby effectively improving the overall efficiency of equipment maintenance.

[0017] In summary, this application achieves a significant improvement in the functionality and convenience of the centrifugal pump coupling protective cover through the synergistic effect of its various components. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view of a multifunctional protective cover for a centrifugal pump coupling disclosed in some embodiments of the present invention; Figure 2 This is a perspective view of a multifunctional protective cover for a centrifugal pump coupling disclosed in some embodiments of the present utility model; Explanation of reference numerals in the attached figures: 1. Opening and closing cover; 2. Cover handle; 3. Hinge mechanism; 4. Protective cover housing; 5. Lighting mechanism; 6. Protective cover fixing bolt holes; 7. Switch assembly; 8. Buckle assembly; 9. Sensor fixing nut; 10. Magnetic moment sensor; 11. Sensor indicator light; 12. Sensor locking nut; 13. Coupling; 14. Cover mechanism; 100. Multifunctional protective cover for centrifugal pump coupling. Detailed Implementation

[0020] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0021] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0022] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0024] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0025] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0026] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0027] Please refer to Figure 1-2 , Figure 1 The image shown is a front view of a multifunctional protective cover for a centrifugal pump coupling provided according to an embodiment of the present invention. Figure 2 This is a perspective view of a multifunctional protective cover for a centrifugal pump coupling according to an embodiment of the present invention. A multifunctional protective cover 100 for a centrifugal pump coupling includes a protective cover housing 4, an openable cover mechanism 14 on the protective cover housing 4, and a switch assembly 7 linked to the cover mechanism 14. The cover mechanism 14 is connected to the protective cover housing 4 via a hinge mechanism 3. The multifunctional protective cover 100 also includes a lighting mechanism 5, which is disposed on the inner wall of the protective cover housing 4 and is used to provide illumination for the coupling 13 located inside the protective cover housing 4. When the cover mechanism 14 is opened, the switch assembly 7 triggers the lighting mechanism 5 to illuminate; when the cover mechanism 14 is closed, the switch assembly 7 extinguishes the lighting mechanism 5. The protective housing 4 is the external structure used to surround and protect the coupling 13, and is usually made of metal or high-strength plastic; the cover plate mechanism 14 is an openable part used to provide an inspection passage; the switch assembly 7 is a device used to control the on / off state of the lighting mechanism 5; the hinge mechanism 3 is a component that allows the cover plate mechanism 14 to rotate; the lighting mechanism 5 is an assembly that provides a light source; and the coupling 13 is a claw-type coupling 13.

[0028] The multi-functional protective cover 100 for the centrifugal pump coupling provided in this application realizes an automated lighting process that lights up when the cover is opened and turns off when the cover is closed. This solves the problem that the condition of the coupling 13 cannot be effectively checked due to the lack of lighting inside the protective cover. It allows the inspection personnel to obtain sufficient lighting immediately when the cover is opened, which is convenient for checking the condition of the coupling 13. At the same time, it avoids energy waste, improves inspection efficiency and safety, and simplifies the operation process, thereby improving inspection efficiency.

[0029] According to several embodiments of this utility model, the multifunctional protective cover 100 for the centrifugal pump coupling also includes a coupling misalignment monitoring mechanism. This mechanism includes a magnetic moment sensor 10, which is mounted on the side wall of the protective cover housing 4 via a sensor fixing nut 9. When the magnetic moment sensor 10 detects that the radial displacement of the coupling 13 exceeds a preset threshold, it triggers an electrical system to cut off the drive power to the centrifugal pump. For example, the preset threshold is adjusted according to the specifications of the coupling 13. The magnetic moment sensor 10 senses the displacement by detecting changes in the magnetic field and is connected to the PLC control system of the centrifugal pump. The coupling misalignment monitoring mechanism enables real-time monitoring and automatic shutdown of the coupling 13 misalignment, preventing escalation of equipment failures due to misalignment and improving production safety and equipment reliability.

[0030] According to several embodiments of this utility model, the position of the detection end of the magnetic moment sensor 10 is adjustable and locked in place by the sensor locking nut 12. For example, the detection end can be rotatably adjusted to maintain its distance from the coupling 13 via a threaded connection, and then fixed with the sensor locking nut 12. This allows for precise calibration based on the actual dimensions of the coupling 13, ensuring monitoring accuracy, avoiding false alarms or missed alarms, and enhancing the system's adaptability.

[0031] According to several embodiments of this utility model, the magnetic moment sensor 10 is electrically connected to a sensor indicator light 11, which is disposed on the outer surface of the protective cover housing 4. The sensor indicator light 11 is an LED light, connected to the magnetic moment sensor 10 via a cable, and emits a visual signal when misalignment is detected. This provides external visual feedback, allowing inspection personnel to quickly identify fault conditions without opening the protective cover, thus improving fault response speed and operational safety.

[0032] According to several embodiments of this utility model, the lighting mechanism 5 is an LED lighting strip, which is disposed on the inner side wall of the protective housing 4, for example, by screw fixing or slot installation, ensuring that the light directly illuminates the area of ​​the coupling 13. The LED lighting strip is a linear lighting device composed of multiple light-emitting diodes, featuring high brightness and low power consumption; the inner side wall is the inner wall surface of the protective housing 4, such as the top or side position. The LED lighting strip provides uniform and bright illumination with low energy consumption and long lifespan, enabling inspectors to clearly observe the misalignment of the coupling 13 and the wear of the elastic pads, further improving the accuracy and reliability of the inspection.

[0033] According to several embodiments of this utility model, the switch assembly 7 is a mechanical push-button switch, which is fixedly mounted on the protective cover housing 4. Its position corresponds to the cover mechanism 14, so that when the cover mechanism 14 is opened, the mechanical push-button switch is released to illuminate the lighting mechanism 5, and when the cover mechanism 14 is closed, the mechanical push-button switch is pressed to extinguish the lighting mechanism 5. The mechanical push-button switch is an electrical switch triggered by physical pressure, such as a push-button or lever switch; "fixedly mounted" means securely installed by bolts or welding; and "corresponding position" means that the trigger point of the switch is aligned with the movement trajectory of the cover mechanism 14. For example, the mechanical push-button switch adopts a push-button design; when the cover is closed, the inner surface of the cover presses down the button to disconnect the circuit. The mechanical push-button switch has a simple structure and rapid response, achieving automatic lighting control without manual intervention, avoiding energy waste or insufficient lighting caused by forgetting to switch on in traditional operations.

[0034] According to several embodiments of the present invention, the cover mechanism 14 includes an opening and closing cover 1, an opening handle 2 disposed on the opening and closing cover 1, and a latching assembly 8 for locking the opening and closing cover 1 in the closed state. In one specific embodiment, the opening handle 2 has a protruding design for easy gripping; the latching assembly 8 achieves locking through a spring mechanism. Through the cooperation of the handle and the latching assembly 8, the cover is quickly opened and securely locked, reducing disassembly time and directly solving the problem of cumbersome operation of traditional protective covers, thereby improving inspection efficiency.

[0035] According to several embodiments of this utility model, the latch assembly 8 is a stainless steel latch. For example, it is made of spring-loaded stainless steel, which has corrosion resistance and fatigue resistance. The stainless steel latch provides reliable locking force, is highly durable, and ensures that the cover will not open accidentally under vibration, thus enhancing safety and service life.

[0036] According to several embodiments of this utility model, the bottom of the protective cover housing 4 is provided with protective cover fixing bolt holes 6, and the hinge mechanism 3 is a cover plate connecting leaf. The protective cover fixing bolt holes 6 are used to fix the protective cover to the centrifugal pump base with bolts; the cover plate connecting leaf adopts a metal hinge design, allowing the cover plate to rotate smoothly. The fixing bolt holes provide a stable installation base and prevent the protective cover from shifting, while the cover plate connecting leaf ensures the smoothness and durability of the cover plate opening, optimizing the reliability of the overall structure.

[0037] The aforementioned multifunctional protective cover 100 for centrifugal pump couplings significantly improves the efficiency and safety of centrifugal pump coupling inspection operations by introducing automatic lighting and a convenient opening mechanism, fundamentally solving a series of problems caused by insufficient lighting and cumbersome operation. Specifically, by setting up a lighting mechanism 5 on the inner wall of the protective cover housing 4 and cooperating with a switch assembly 7 linked to the cover plate mechanism 14, an automated lighting effect is achieved that lights up when the cover is opened and turns off when the cover is closed. This design directly solves the problem of insufficient necessary lighting facilities inside the protective cover, making it difficult for inspectors to effectively check the condition of the coupling 13. It provides inspectors with sufficient and stable internal lighting, ensuring that the inspection of critical conditions such as misalignment of the coupling 13 and wear of the elastic pads can be carried out accurately and smoothly. The cover plate mechanism 14, connected by the hinge mechanism 3, together with the switch assembly 7, forms an integrated quick-opening and closing module. This design eliminates the need for cumbersome disassembly of the entire protective cover during inspection; simply opening the cover plate simultaneously completes the lighting trigger and inspection channel exposure, greatly simplifying the operation process. This directly addresses and solves the drawbacks of traditional protective cover disassembly and installation processes, which are lengthy and cumbersome, reduce inspection efficiency, and extend equipment downtime, thereby effectively improving the overall efficiency of equipment maintenance.

[0038] The following illustrates the operation method of the multi-functional protective cover for the centrifugal pump coupling provided in this application, to further understand the multi-functional protective cover for the centrifugal pump coupling provided in this application. The operation method includes: Step a: Open the cover plate mechanism. The opening action triggers the switch assembly to illuminate the lighting mechanism located on the inner wall of the protective cover housing, so as to provide illumination for the coupling located inside the protective cover housing. Step b: Close the cover plate mechanism. The closing action triggers the switch assembly to extinguish the lighting mechanism.

[0039] In one specific embodiment, during routine inspection, when the equipment inspector needs to perform a routine inspection of the centrifugal pump coupling, they first open the stainless steel buckle, then grasp the cover handle 2 and lift the opening / closing cover 1 upwards. During the opening process, the inner surface of the cover disengages from the mechanical push-button switch, automatically activating the circuit and illuminating the LED lighting strip on the inner wall of the protective cover housing 4. At this time, the interior of the protective cover is adequately illuminated, allowing the inspector to clearly inspect the alignment of the coupling 13 and the wear condition of the elastic gasket. After the inspection is completed, the opening / closing cover 1 is closed, pressing down the mechanical push-button switch and automatically cutting off the power to the LED lighting strip. During operation monitoring and fault handling, the magnetic moment sensor 10 continuously monitors the radial position of the coupling 13 during centrifugal pump operation. When the centrifugal pump or motor vibrates due to damage to components such as mechanical seals or bearings, causing radial displacement of the coupling 13 that exceeds a preset threshold, the magnetic moment sensor 10 immediately detects the position change. At this time, the sensor indicator light 11 changes from being off to being on, and simultaneously sends a stop signal to the centrifugal pump PLC control system, triggering the electrical system to cut off the centrifugal pump drive power, achieving automatic shutdown protection and preventing further escalation of equipment failure. During maintenance shutdowns, when it is necessary to replace the coupling 13 or perform other maintenance work, first execute the safety locking procedure: loosen the sensor locking nut 12, and screw the magnetic moment sensor 10's detection end into the position where it senses the inner wall of the protective cover housing 4. At this time, the sensor indicator light 11 illuminates, indicating that the safety locking mode has been entered. Then, remove the bolts on the protective cover fixing bolt holes 6, and grasp the cover opening handle 2 to remove the entire protective cover housing 4. During maintenance, the magnetic moment sensor 10 continuously sends a stop holding signal to the PLC control system. Even if an accidental power-on operation occurs, the system will remain powered off, providing double safety protection for maintenance personnel. After maintenance is completed, restore each component to its normal operating state in reverse order. This operating method achieves comprehensive protection for centrifugal pump couplings through three key aspects: automatic lighting control, operation status monitoring, and safety locking. It effectively solves problems such as insufficient lighting, delayed fault response, and maintenance safety hazards that exist in traditional protective covers.

[0040] To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art will fully understand how to implement the technical solutions disclosed herein based on the above description.

[0041] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.

Claims

1. A multifunctional protective cover for a centrifugal pump coupling, characterized in that, include: A protective cover housing, wherein the protective cover housing is provided with an openable cover mechanism and a switch assembly that is linked to the cover mechanism, and the cover mechanism is connected to the protective cover housing via a hinge mechanism; A lighting mechanism, disposed on the inner wall of the protective cover housing, is used to provide lighting for the coupling located inside the protective cover housing; When the cover mechanism is opened, the switch assembly triggers the lighting mechanism to light up; when the cover mechanism is closed, the switch assembly turns off the lighting mechanism.

2. The multifunctional protective cover for the centrifugal pump coupling according to claim 1, characterized in that, The multi-functional protective cover for the centrifugal pump coupling also includes a coupling misalignment monitoring mechanism. The coupling misalignment monitoring mechanism includes a magnetic moment sensor, which is installed on the side wall of the protective cover housing by a sensor fixing nut. When the magnetic moment sensor detects that the radial displacement of the coupling exceeds a preset threshold, it triggers the electrical system to cut off the drive power of the centrifugal pump.

3. The multifunctional protective cover for the centrifugal pump coupling according to claim 2, characterized in that, The position of the detection end of the magnetic moment sensor is adjustable and can be locked in place by a sensor locking nut.

4. The multifunctional protective cover for the centrifugal pump coupling according to claim 2, characterized in that, The magnetic moment sensor is electrically connected to a sensor indicator light, which is located on the outer surface of the protective cover housing.

5. The multifunctional protective cover for the centrifugal pump coupling according to claim 1, characterized in that, The lighting mechanism is an LED lighting strip, which is disposed on the inner side wall of the protective cover housing.

6. The multifunctional protective cover for the centrifugal pump coupling according to claim 1, characterized in that, The switch assembly is a mechanical push switch, which is fixedly mounted on the protective cover housing and its position corresponds to the cover plate mechanism. When the cover plate mechanism is opened, the mechanical push switch is released to illuminate the lighting mechanism, and when the cover plate mechanism is closed, the mechanical push switch is pressed to extinguish the lighting mechanism.

7. The multifunctional protective cover for the centrifugal pump coupling according to claim 1, characterized in that, The cover plate mechanism includes an opening and closing cover plate, an opening handle disposed on the opening and closing cover plate, and a latching assembly for locking the opening and closing cover plate in the closed state.

8. The multifunctional protective cover for the centrifugal pump coupling according to claim 7, characterized in that, The buckle assembly is a stainless steel buckle.

9. The multifunctional protective cover for the centrifugal pump coupling according to claim 1, characterized in that, The hinge mechanism is a cover plate connecting to a lotus leaf.

10. The multifunctional protective cover for the centrifugal pump coupling according to claim 1, characterized in that, The bottom of the protective cover housing is provided with protective cover fixing bolt holes.

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