Multipoint oil supply lubricating device for bearing of phase modifier

Abstract

The utility model provides a multi-point oil supply lubricating device for a bearing of a phase modifier. The multi-point oil supply lubricating device comprises an oil storage and supply box body, an oil supply access pipe, three oil pumps, three groups of oil supply branch pipe assemblies and an adjusting and mounting protection frame, an oil supply access pipe is arranged at the top of the oil storage and supply tank body, three oil pumps are fixedly mounted on the oil storage and supply tank body, and the three oil pumps are connected with the three oil supply branch pipe assemblies correspondingly and used for extracting lubricating oil in the oil storage and supply tank body and independently conveying the lubricating oil to the corresponding oil supply branch pipe assemblies for fixed-point oil supply; one side of the top of the oil storage and supply tank body is provided with an adjusting and mounting protection frame capable of adjusting the positions of the three groups of oil supply branch pipe assemblies and protecting the three groups of oil supply branch pipe assemblies; and the adjusting and mounting protection frame comprises a mounting plate mounted on the oil storage and supply tank body and three protection pipe frames capable of adjusting the height and respectively penetrating through the three groups of oil supply branch pipe assemblies. Three paths of relatively independent oil supply structures can be formed, and a high-temperature protection effect can be achieved on the branch pipe part, close to the bearing part of the phase modifier, of the oil supply branch pipe assembly.

Description

Technical Field

[0001] This application relates to the field of lubrication device technology, and in particular to a multi-point oil supply lubrication device for a phase shifter bearing. Background Technology

[0002] In the reactive power regulation and voltage stabilization control of power systems, synchronous condensers are critical rotating electrical equipment. Their internal bearings generate significant frictional heat during prolonged high-speed operation, leading to sustained temperature increases in localized areas. Under high load or frequent start-stop conditions, abnormally high temperatures may even occur. Therefore, to ensure the stable operation of synchronous condenser bearings, continuous and reliable lubrication is essential. With the development of intelligent operation and maintenance of power equipment, multi-point independent lubrication has become an important trend in the operation and maintenance of synchronous condensers, significantly increasing the requirements for the precision of lubrication paths, structural protection, and field adaptability.

[0003] Existing synchronous condenser bearing lubrication systems generally employ a centralized oil supply method. This involves an integrated oil supply tank supplying lubricating oil to various lubrication points via single or multiple oil pumps through a network of pipes. A typical layout involves a fixed oil outlet in the tank connected to a set of fixed-length oil supply branch pipes, leading directly to each bearing. In practical applications, the oil supply branch pipes near the bearings in the synchronous condenser body often need to traverse high-temperature, high-vibration environments. However, most existing branch pipes are exposed, with fixed and non-adjustable paths, lacking necessary height guidance structures. Furthermore, the branch pipes near the bearings lack appropriate physical protection devices, making them susceptible to thermal expansion and contraction, environmental vibration, or external impacts, leading to aging, deformation, and in severe cases, inadequate lubrication or oil leakage.

[0004] Therefore, there is an urgent need to design a lubrication device with multi-point independent oil supply capability and reliable protection capability for the part of the branch pipe near the bearing, so as to facilitate safe lubrication operation of the camera bearing. Utility Model Content

[0005] The purpose of this application is to provide a multi-point oil supply lubrication device for condenser bearings, so as to solve the problems mentioned in the background art of existing condenser bearing lubrication devices lacking multi-point independent oil supply capability and the lack of reliable protection capability of the branch pipe near the bearing.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-point oil supply lubrication device for a synchronous condenser bearing includes an oil storage tank, an oil supply inlet pipe, three oil pumps, three sets of oil supply branch pipe assemblies, and an adjustment and installation protective frame.

[0008] The top of the oil storage tank is equipped with an oil supply inlet pipe for connecting an external oil supply device to replenish lubricating oil into the oil storage tank. Three oil pumps are fixedly installed on the oil storage tank. The three oil pumps are respectively connected to three sets of oil supply branch pipe assemblies and are used to draw lubricating oil from the oil storage tank and deliver it to the corresponding oil supply branch pipe assembly for fixed-point oil supply. An adjustment and installation protective frame is provided on one side of the top of the oil storage tank to adjust the position of the three sets of oil supply branch pipe assemblies and to protect them. The adjustment and installation protective frame includes a mounting plate installed on the oil storage tank and three protective pipe frames that can be height adjusted and are respectively connected to the three sets of oil supply branch pipe assemblies.

[0009] In an optional embodiment, the oil supply branch pipe assembly includes an oil supply branch pipe and a lubricating oil nozzle. One end of the oil supply branch pipe is connected to the oil outlet of the corresponding oil pump, and the other end of the oil supply branch pipe is movably inserted into the protective pipe of the protective pipe rack and connected to the lubricating oil nozzle, which is connected to the protective pipe.

[0010] In an optional embodiment, the protective pipe rack is disposed on the mounting plate, the base is disposed on the mounting plate, and the protective pipe rack includes a protective pipe, a base, a limiting pipe body, a first fixing sleeve, and a second fixing sleeve.

[0011] The limiting tube is vertically fixed on the base, and a first fixing sleeve is fitted on the limiting tube. The protective tube is hollow and arranged perpendicular to the limiting tube. The protective tube and the limiting tube are connected by the first fixing sleeve. The first fixing sleeve is provided with a locking structure and can be used to adjust and lock the height of the protective tube relative to the base after it moves and is adjusted on the limiting tube. The second fixing sleeve is fitted on the other end of the protective tube. A lubricating oil nozzle is connected to the second fixing sleeve. The second fixing sleeve can be rotated relative to the protective tube and fixed by the locking structure to adjust the spray direction.

[0012] In an optional embodiment, the protective tube has an extension opening at the position where it connects to the second fixed sleeve, allowing the oil supply branch pipe to extend movably from inside the protective tube. The lubricating oil nozzle is mounted on the second fixed sleeve and connected to the end of the oil supply branch pipe extending from the extension opening.

[0013] In an optional embodiment, the oil supply branch pipe is equipped with a shut-off valve for controlling the flow rate and a pressure gauge for monitoring oil pressure parameters.

[0014] In one optional embodiment, the oil storage tank is a square tank, and an oil cavity is provided inside the oil storage tank.

[0015] In an optional embodiment, the oil pump is an electrically driven oil pump, and the three sets of oil pumps operate independently to control the three oil supply circuits respectively.

[0016] In an optional embodiment, an electrical control box is provided on one side of the housing for independently controlling the start / stop status and oil supply time of the three sets of oil pumps. The electrical control box is equipped with a switch button, a running indicator light and a status display screen.

[0017] Compared with the prior art, the beneficial effects of this application are:

[0018] 1. This application provides a multi-point oil supply lubrication device for a synchronous condenser bearing. It comprises three oil pumps installed on the oil storage tank, each connected to one of three sets of oil supply branch pipe assemblies, forming three relatively independent oil supply structures. Unlike the traditional method of using a single oil pump for branch oil supply, this configuration breaks the limitation of collinear pathways in physical layout, allowing each oil supply path to have an independent channel and dedicated control logic. Since the three oil supply paths do not interfere with each other, the impact of the spatial environment can be reduced during pipe laying. Furthermore, after grouping, the oil supply branch pipes near the synchronous condenser bearing area can obtain a more independent and clear laying direction. This path separation method leaves room for subsequent lubricant nozzle installation and spatial adaptation, and also helps reduce the coordination difficulty during on-site wiring, thereby improving the overall installation flexibility and practicality.

[0019] 2. This application features an adjustable protective frame on one side of the top of the oil supply tank, consisting of a mounting plate and three protective pipe frames. Three sets of oil supply branch pipe assemblies are sequentially inserted into each protective pipe frame. This vertical distribution and positioning structure ensures that the three sets of oil supply branch pipe assemblies remain orderly after exiting the protective pipe frames, preventing the oil supply branch pipes from swinging freely on the unsupported surface of high-temperature equipment. Especially in locations with complex phase-shifting structures and high ambient temperatures, the height adjustment capability of the protective pipe frame allows for vertical adjustment of the oil supply branch pipes before they enter the bearing area. This fine-tuning mechanism ensures that the ends of the oil supply branch pipes are well aligned with the lubrication target, reducing the decrease in lubrication efficiency caused by spray angle deviations. Furthermore, because the protective pipe rack can adjust the height of the oil supply branch pipe assembly, and has a height adjustment function, installers can individually adjust the vertical dimensions of each set of protective pipe racks according to the arrangement elevation of different phase-shifting bearings in the actual equipment. This ensures that the application position is closer to the bearing lubrication area, thereby helping to improve the lubrication hit rate and improve the oil spray coverage when using three sets of oil supply branch pipe assemblies. Overall, this structural arrangement not only enhances the adaptability of the equipment but also reduces lubrication blind spots caused by positional deviations to a certain extent.

[0020] 3. The protective pipe rack in this application provides an installation channel for the oil supply path. Under the protection of the protective pipe rack that allows the oil supply branch pipe assembly to pass through, the branch pipe sections near the phase-shifting bearing are all in an isolated and protected state. This structure provides basic support for the branch pipe sections, preventing deformation and aging due to high temperatures or local vibrations during equipment operation. It also helps to mitigate the slight swaying of the branch pipes caused by environmental disturbances, preventing wear caused by long-term friction. Especially in the area near the bearing, where the heat source is concentrated, the branch pipes are prone to deformation or nozzle displacement if unprotected. By using a physical limiting and channel fixing structure at the outlet, the directional stability and protection of the branch pipe ends are enhanced, thereby effectively improving the operational reliability and service life of the lubrication terminal while maintaining a simple structure. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a multi-point oil supply lubrication device for a camera condenser bearing provided in an embodiment of this application.

[0023] Figure 2 This is a schematic diagram from another perspective of a multi-point oil supply lubrication device for a camera condenser bearing provided in an embodiment of this application.

[0024] Figure 3 This is a schematic diagram of the structure of the adjustable installation protective frame provided in one embodiment of this application.

[0025] Figure 4 This is a schematic diagram of the oil supply branch pipe assembly provided in one embodiment of this application on the oil storage tank.

[0026] In the diagram, 100-oil storage tank; 200-electric control box; 300-oil supply inlet pipe; 400-oil pump; 500-oil supply branch pipe assembly; 510-oil supply branch pipe; 511-stop valve; 512-pressure gauge; 520-lubricating oil nozzle; 600-adjustment and installation protective frame; 610-mounting plate; 620-protective pipe rack; 621-protective pipe; 622-base; 623-limiting pipe body; 624-first fixing sleeve; 625-second fixing sleeve. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0028] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly, for example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] Please see Figures 1-4 , Figure 1 This is a schematic diagram of the structure of a multi-point oil supply lubrication device for a camera condenser bearing provided in an embodiment of this application. Figure 2 This is a schematic diagram from another perspective of a multi-point oil supply lubrication device for a camera condenser bearing provided in an embodiment of this application. Figure 3 This is a schematic diagram of the structure of the adjustable installation protective frame provided in one embodiment of this application. Figure 4 This is a schematic diagram of the oil supply branch pipe assembly provided in one embodiment of this application on the oil storage tank.

[0032] like Figures 1-4 As shown in the figure, this application embodiment provides a multi-point oil supply lubrication device for a camera condenser bearing, including an oil storage tank 100, an oil supply inlet pipe 300, three oil pumps 400, three sets of oil supply branch pipe assemblies 500, and an adjustment and installation protective frame 600.

[0033] The oil storage tank 100 is equipped with an oil supply inlet pipe 300 at the top for connecting to an external oil supply device to replenish lubricating oil into the oil storage tank 100. Three oil pumps 400 are fixedly installed on the oil storage tank 100. The three oil pumps 400 are respectively connected to three sets of oil supply branch pipe assemblies 500 and are used to draw lubricating oil from the oil storage tank 100 and deliver it to the corresponding oil supply branch pipe assembly 500 for fixed-point oil supply. An adjustment and installation protective frame 600 is provided on one side of the top of the oil storage tank 100 to adjust the position of the three sets of oil supply branch pipe assemblies 500 and to protect them. The adjustment and installation protective frame 600 includes an installation plate 610 installed on the oil storage tank 100 and three protective pipe brackets 620 that can be height adjusted and are respectively connected to the three sets of oil supply branch pipe assemblies 500.

[0034] In this embodiment, three oil pumps 400 are respectively installed on the oil storage tank 100 and connected to three sets of oil supply branch pipe assemblies 500, forming three relatively independent oil supply structures. Unlike the traditional structure that uses a single oil pump for split oil supply, this configuration breaks the limitation of collinearity in physical layout, allowing each oil supply path to have an independent channel and dedicated control logic. Since the three oil supply paths do not interfere with each other, the impact of the spatial environment can be reduced during pipe laying. Moreover, after grouping, the oil supply branch pipes can obtain a more independent and clear laying direction when near the camera condenser bearing area. This path separation method leaves room for subsequent lubricating oil nozzle installation and spatial adaptation, and also helps to reduce the coordination difficulty in the on-site wiring process, thereby improving the overall installation flexibility and practicality.

[0035] Meanwhile, in this embodiment, an adjustable protective frame 600 is provided on one side of the top of the oil storage tank 100. This frame consists of a mounting plate 610 and three protective pipe supports 620, with three sets of oil supply branch pipe assemblies 500 sequentially inserted into each of the protective pipe supports 620. This vertical distribution and positioning structure ensures that the three sets of oil supply branch pipe assemblies 500 remain orderly after exiting the protective pipe supports, preventing the oil supply branch pipes from swinging freely on the unsupported surface of high-temperature equipment. Especially in locations with complex phase-shifting structures and high ambient temperatures, the height adjustment capability of the protective pipe supports allows the oil supply branch pipes to be vertically adjusted before entering the bearing area. Through this fine-tuning mechanism, the ends of the oil supply branch pipes can be better aligned with the lubrication target, reducing the decrease in lubrication efficiency caused by spray angle deviations. Furthermore, because the protective pipe support 620 can adjust the height of the oil supply branch pipe assembly 500, and has a height adjustment function, installers can individually adjust the vertical dimension of each protective pipe support 620 according to the arrangement elevation of different phase-shifting bearings in the actual equipment. This ensures that the position is more closely aligned with the bearing lubrication area during application, thereby improving lubrication hit rate and enhancing the oil spray coverage with the use of three sets of oil supply branch pipe assemblies 500. Overall, this structural arrangement not only enhances the adaptability of the equipment but also reduces lubrication blind spots caused by positional deviations to a certain extent.

[0036] Furthermore, the protective pipe support 620 provides an installation channel for the oil supply path. Under the protection of the protective pipe support 620, which allows the oil supply branch pipe assembly 500 to pass through, the branch pipe sections of the oil supply branch pipe assembly 500 near the camera condenser bearing are all in a protected and isolated state. This structure provides basic support for the branch pipe sections, preventing deformation and aging due to high temperatures or local vibrations during equipment operation. It also helps to mitigate the slight swaying of the branch pipes caused by environmental disturbances, preventing wear caused by long-term friction. Especially in the area near the bearing, where the heat source is concentrated, the branch pipes are prone to deformation or nozzle displacement without protection. By employing a physical limiting and channel fixing structure at the outlet, the directional stability and protection of the branch pipe ends are enhanced, thereby effectively improving the operational reliability and service life of the lubrication terminal while maintaining a simple structure.

[0037] In some embodiments, the oil supply branch pipe assembly 500 includes an oil supply branch pipe 510 and a lubricating oil nozzle 520. One end of the oil supply branch pipe 510 is connected to the oil outlet of the corresponding oil pump 400, and the other end of the oil supply branch pipe 510 is movably inserted through the protective pipe 621 of the protective pipe support 620 and connected to the lubricating oil nozzle 520, which is connected to the protective pipe 621. Optionally, the oil supply branch pipe 510 is a flexible pipe, which is convenient for moderate bending arrangement. The length should be sufficient to meet the needs of use, so that the oil supply branch pipe 510 has a sufficient length to adapt to adjustment when adjusting the protective pipe support 620.

[0038] In this embodiment, the oil supply branch pipe assembly 500 includes an oil supply branch pipe 510 and a lubricating oil nozzle 520. One end of the oil supply branch pipe 510 is connected to the corresponding oil pump 400, and the other end is connected to the lubricating oil nozzle 520, forming a closed oil supply path. The three oil supply paths are independently driven by three oil pumps. Lubricating oil is drawn from the oil storage tank 100 and delivered to the corresponding lubrication point through its respective path. This point-to-point connection method physically separates the three oil supply paths, preventing them from intersecting and avoiding crosstalk caused by system pressure fluctuations. Furthermore, each oil supply path has clearly defined start and end boundaries, facilitating step-by-step inspection and maintenance during operation. The oil transmission path within the branch pipe is relatively stable, and the flow process is not easily affected by backflow or air resistance, exhibiting good oil pressure continuity, which is beneficial for maintaining the stability of the lubrication process.

[0039] Meanwhile, the oil supply branch pipe 510 is arranged in a movable manner within the protective pipe 621 before connecting to the lubricating oil nozzle 520. This arrangement allows for a certain axial movement margin within the protective channel, facilitating fine-tuning of the branch pipe length according to the bearing installation position during on-site construction. During installation, operators can first install the protective pipe support 620, then sequentially insert the oil supply branch pipe 510, ultimately connecting it to the lubricating oil nozzle 520. Compared to rigid clamping connections, this arrangement allows for moderate displacement along the routing path, helping to absorb displacement errors caused by structural tolerances or equipment vibration, and reducing the risk of tensile damage to the oil supply branch pipe 510. Furthermore, the adjustability during wiring improves the standardization of each branch pipe's routing and facilitates subsequent wiring inspection and maintenance.

[0040] Furthermore, after the oil supply branch pipe 510 extends from the upper end of the protective pipe 621, the lubricating oil nozzle 520 is connected to the protective pipe 621. This structure provides support for the lubricating oil nozzle 520, maintaining its relative position stability even when subjected to axial reaction forces or external disturbances. During installation, the lubricating oil nozzle 520 should be oriented with the spray direction facing the corresponding bearing's lubrication area to reduce lubrication misalignment or insufficient spray coverage. The lubricating oil nozzle 520, combined with the protective pipe 621, forms a clear end support point, which helps maintain its direction during operation. Simultaneously, this structure facilitates replacement and maintenance of the lubricating oil nozzle 520, improving the maintainability and alignment accuracy of the lubrication terminal components.

[0041] In some embodiments, the protective pipe rack 620 is disposed on the mounting plate 610, and the protective pipe rack 620 includes a protective pipe 621, a base 622, a limiting pipe body 623, a first fixing sleeve 624, and a second fixing sleeve 625.

[0042] The limiting tube 623 is vertically fixed on the base 622, which is mounted on the mounting plate 610. A first fixing sleeve 624 is fitted on the limiting tube 623. The protective tube 621 is hollow and arranged perpendicularly to the limiting tube 623. The protective tube 621 and the limiting tube 623 are connected by the first fixing sleeve 624. The first fixing sleeve 624 is provided with a locking structure and can be used to adjust and lock the height of the protective tube 621 relative to the base 622 after it has been moved and adjusted on the limiting tube 623. A second fixing sleeve 625 is fitted on the other end of the protective tube 621. A lubricating oil nozzle 520 is connected to the second fixing sleeve 625. The second fixing sleeve 625 can be rotated relative to the protective tube 621 and fixed by the locking structure to adjust the spray direction.

[0043] In this embodiment, the limiting tube 623 is vertically mounted on the base 622, providing a structural support foundation for the protective pipe rack 620. The base 622 is connected to the top of the oil storage and supply tank 100 via the mounting plate 610. This vertical arrangement ensures that after the protective pipe 621 is installed on the limiting tube 623, the overall support structure forms a closed connection with a certain rigidity, which helps to limit the displacement of the protective pipe rack 620 due to equipment vibration or external disturbances during operation. This arrangement is suitable for vibration conditions present in synchronous condenser equipment during long-term operation, helps to enhance the overall stability of the oil supply branch pipe layout, and reduces the risk of changes in the oil supply position caused by support deformation during operation.

[0044] Meanwhile, the first fixing sleeve 624 is fitted onto the outside of the limiting tube body 623. The first fixing sleeve 624 is equipped with a locking structure. When the protective tube 621 is connected to the limiting tube body 623 via the first fixing sleeve 624, it can slide and adjust vertically. This structure allows for fine-tuning of the height during installation based on the bearing interface position, ensuring effective alignment of the end of the oil supply branch pipe 510 within the target lubrication position range. After adjustment, the locking structure of the first fixing sleeve 624 secures the tube, maintaining its height stability during operation.

[0045] In addition, the protective tube 621 is equipped with a second fixing sleeve 625, which is connected to the lubricating oil nozzle 520 and has a rotation adjustment function. After the lubricating oil nozzle 520 is connected to the second fixing sleeve 625, its spray direction can be adjusted by rotation. During installation, technicians can change the direction of the lubricating oil nozzle 520 and lock it by rotating the second fixing sleeve 625 according to the specific location of the bearing lubrication area, so that the oil outlet direction of the lubricating oil nozzle 520 is aligned with the target lubrication area. The rotation adjustment feature of this structure provides a certain directional adjustment space for on-site deployment, which is beneficial for compensating for bracket installation errors or bearing arrangement differences, and improving the accuracy of lubrication coverage.

[0046] In some embodiments, the protective tube 621 has an outlet at the position where it is connected to the second fixed sleeve 625, through which the oil supply branch pipe 510 can be moved out from the protective tube 621. The lubricating oil nozzle 520 is mounted on the second fixed sleeve 625 and connected to the end of the oil supply branch pipe 510 extending from the outlet.

[0047] In this embodiment, an extension opening is provided at the position where the protective pipe 621 connects to the second fixed sleeve 625, for the oil supply branch pipe 510 to pass through. This structure ensures that the key protected parts of the oil supply branch pipe 510 are covered and protected by the protective pipe 621. Moreover, the extension opening is close to the bearing position, and the oil supply branch pipe 510 can be easily connected to the lubricating oil nozzle 520 after extending out of the extension opening of the protective pipe 621. At the same time, after the lubricating oil nozzle 520 is connected to the second fixed sleeve 625, the exposure of the oil supply branch pipe 510 is minimized, thereby improving the high-temperature protection effect of the oil supply branch pipe 510 and reducing the risk of fatigue or wear of local pipe sections under conditions such as thermal expansion and vibration.

[0048] In this embodiment, the oil supply branch pipe 510 extends through the protective pipe 621 and connects directly to the lubricating oil nozzle 520 mounted on the second fixing sleeve 625. The second fixing sleeve 625 positions the lubricating oil nozzle 520 outside the protective pipe 621, forming an integrated terminal structure. Because the connection point between the lubricating oil nozzle 520 and the protective pipe 621 is close, and the protective pipe 621 has an extended opening, the length of the oil supply branch pipe 510 can be reduced, and the exposure of the oil supply branch pipe 510 can be minimized.

[0049] Furthermore, based on the partial protrusion design of the protective pipe 621 and its movable insertion with the oil supply branch pipe 510, the oil supply branch pipe 510 still retains a certain axial adjustment margin within the protective pipe 621. In actual installation, when the second fixing sleeve 625 is rotated for adjustment, the oil supply branch pipe 510 can move relatively smoothly within the protective pipe 621, which helps improve on-site installation efficiency.

[0050] In some embodiments, the oil supply branch pipe 510 is provided with a shut-off valve 511 for controlling the flow rate and a pressure gauge 512 for monitoring oil pressure parameters.

[0051] In this embodiment, a shut-off valve 511 and a pressure gauge 512 are added to the oil supply branch pipe 510, which together constitute a control node for adjustment and monitoring. This structural design does not affect the overall continuity of the original oil supply path, while introducing a controllable factor to each lubrication branch pipe. The shut-off valve 511 is a conventional mechanical control component that can independently shut off the oil flow of the corresponding branch according to operating conditions or on-site maintenance arrangements. When the equipment is partially running or undergoing maintenance, the supply can be partially stopped through this valve, avoiding the impact of a forced shutdown of the entire system.

[0052] Pressure gauge 512 is used to monitor the oil pressure inside the oil supply branch pipe 510. Installed in an easily observable location, it allows operators to monitor the operating pressure level of each oil supply path at any time. By reading the pressure gauge, it is possible to preliminarily determine whether the oil pump 400's oil supply capacity is normal, and whether there are any abnormalities such as pipe blockage, leakage, or air lock. If the oil pressure in a certain line fluctuates, relevant personnel can intervene promptly to reduce the possibility of lubrication interruption or localized dry friction.

[0053] The combination of shut-off valve 511 and pressure gauge 512 makes the operation of the entire lubrication system more controllable. This not only facilitates real-time management of oil supply to each oil supply branch pipe 510 on-site, but also enhances the dynamic response capability of the system during operation. For multi-path lubrication devices, this configuration helps improve commissioning efficiency, optimize lubrication strategies, and reduce the impact of sudden failures during long-term operation, thereby improving the safety and reliability of the entire machine.

[0054] In some embodiments, the oil storage tank 100 is a square box, and an oil cavity is provided inside the oil storage tank 100.

[0055] In this embodiment, the oil storage tank 100 adopts a square box structure design. This shape exhibits strong adaptability in terms of structural stress and space utilization, making it suitable for use in hoisting, handling, equipment positioning, and base fixing. The oil storage tank 100 has an independent oil chamber inside, which serves as the storage space for lubricating oil and is directly connected to the oil inlet of the oil pump 400 through a pipeline, thus acting as the oil supply source.

[0056] In some embodiments, the oil pump 400 is an electrically driven oil pump, and the three sets of oil pumps 400 operate independently to control the three oil supply circuits respectively.

[0057] In this embodiment, the oil pump 400 is electrically driven and configured with three independently operating groups, each corresponding to a separate oil supply path. In practical applications, each group can be controlled by an independent drive system to start and stop. This configuration provides a clear logical division, ensuring that different lubrication paths do not interfere with each other, thus improving the responsiveness of the oil supply system. During operation, any one of the oil supply paths can be individually opened or closed based on actual needs such as bearing load, local temperature rise, or maintenance plans. This reduces the runtime of unnecessary paths, lowers energy consumption, and mitigates unevenness caused by local pressure fluctuations.

[0058] The independent arrangement of the three sets of oil pumps 400 not only improves control accuracy but also enhances the fault tolerance of the equipment. When a blockage, leak, or maintenance is required in the path of one set of oil pumps 400, the other two sets can continue to maintain normal oil supply, and the lubrication operation is not significantly affected, which helps to reduce the risk of system-level shutdown caused by local anomalies.

[0059] Furthermore, electrically driven oil pumps possess rapid response characteristics, facilitating integration with control equipment to implement diverse operational control strategies. Examples include time-based metered oil supply or start-stop linkage based on operational signals. Overall, adopting an independently controlled electrically driven structure enhances the controllability, adaptability, and maintenance convenience of the lubrication system, thus providing a fundamental support for longer-term, stable equipment operation.

[0060] In some embodiments, an electrical control box 200 is provided on one side of the housing 100 for independently controlling the start / stop status and oil supply time of the three sets of oil pumps 400. The electrical control box 200 is equipped with a switch button, a running indicator light and a status display screen.

[0061] In this embodiment, the electrical control box 200 is installed on one side of the oil storage and supply tank 100, forming a control unit independent of the oil storage and supply tank 100. Moreover, its position is close to the oil pump 400, which facilitates the completion of electrical wiring through short-distance connections, thereby reducing wiring length. Furthermore, this layout design helps to achieve functional zoning of the operating interface and oil supply structure during system maintenance or functional expansion.

[0062] In practical applications, the electrical control box 200 has three independent control channels, each used to control the start / stop status and oil supply duration of the three oil pumps 400. During operation, the operator can manually or programmatically start a specific group of oil pumps according to different lubrication needs, or set a timed operation strategy to achieve flexible control over the lubrication cycle and duration. This design is particularly suitable for situations where the synchronous condenser has multiple bearing types and inconsistent operating rhythms; for example, some bearings require continuous oil supply for extended periods, while others require periodic lubrication. This grouped operation method can better match the actual operating conditions of each bearing, reduce overall operating power consumption, and improve the lubrication system's adaptability to complex operating conditions.

[0063] In terms of interface design, the control box 200 features a panel with power buttons, indicator lights, and a status display, forming an intuitive human-machine interface platform. In practical applications, the power buttons provide basic start / stop operations, while the indicator lights reflect the operating status of each oil pump, allowing on-site personnel to quickly identify whether it is in operation. The status display shows key information such as current operating time, oil supply pressure, and system alarms, enabling operators to promptly grasp equipment operating data and assist in assessing system health. This configuration reduces the need for frequent inspections and helps improve overall maintenance efficiency and system security. Furthermore, the control box 200 allows for the provision of ample electrical control interfaces, providing excellent expandability and compatibility for future integration with remote control systems or data platforms, thus offering fundamental support for intelligent management.

[0064] The method of using the multi-point oil supply lubrication device for the camera condenser bearing provided in this embodiment is as follows:

[0065] Before the equipment is put into operation, the basic installation and layout of the equipment should be completed first. The oil storage and supply tank 100 should be placed in a location near the synchronous condenser for easy operation and connection, and secured to the support base with bolts. The oil supply inlet pipe 300 is connected to the external lubrication system, and the interface is sealed to reduce the risk of leakage. Three oil pumps 400 are installed on the top of the oil storage and supply tank 100, and each oil pump is connected to a set of oil supply branch pipe assemblies 500. During installation, the oil supply branch pipes 510 are sequentially passed through the corresponding protective pipe racks 620 and laid out in their respective numbered directions, with the ends facing the corresponding synchronous condenser bearing area, to prepare for the initial guidance of subsequent oil injection.

[0066] After the initial layout of the oil supply path is completed, the nozzle positioning adjustment is required. The protective pipe 621 in the protective pipe rack 620 is adjusted in height via the limiting pipe body 623 and the first fixed clamp 624. Installers can fine-tune the position of the protective pipe 621 according to the actual installation elevation of the bearing interface. After adjustment, the position is fixed using a locking structure to improve structural stability. The oil supply branch pipe 510 extends from the outlet of the protective pipe 621 and connects to the lubricating oil nozzle 520 on the second fixed clamp 625. The lubricating oil nozzle 520 can be adjusted by rotating and then locking the second fixed clamp 625, allowing for adaptive adjustment according to the direction of the lubrication point. After adjustment, positioning is completed by tightening.

[0067] After setting the nozzle direction, proceed with the lubricating oil injection. In application, the external oil source connected to the oil supply inlet pipe 300 can be opened beforehand to slowly inject lubricating oil into the internal oil cavity of the oil storage tank 100. Rapid injection should be avoided during the injection process to reduce air contamination or liquid overflow. If there is sufficient lubricating oil in the oil storage tank 100, lubricating oil can be injected into the internal oil cavity of the oil storage tank 100 without connecting to the external oil source through the oil supply inlet pipe 300. After the oil storage tank 100 is filled with oil, the three sets of oil pumps 400 are started through the electrical control box 200. The operating time and starting sequence of each set of oil pumps 400 can be controlled as needed. After the oil pumps 400 are running, lubricating oil is drawn from the oil storage tank 100, transported to the lubricating oil nozzle 520 through the oil supply branch pipe 510, and then sprayed onto the phase adjuster bearing through the lubricating oil nozzle 520, gradually forming a uniform and continuous lubrication layer.

[0068] During system operation, the operating status of each group of oil pumps 400 can be monitored in real time using the status display screen and operation indicator lights equipped in the electrical control box 200. If a certain oil supply line is abnormal, it can be manually opened or closed using the shut-off valve 511 on the corresponding oil supply branch pipe 510. Alternatively, the reading of the pressure gauge 512 can be used to determine whether there are problems such as oil pressure fluctuations, blockages, or insufficient oil supply in that line. If it is necessary to partially shut down a certain oil supply branch, the operator can choose to shut down only the oil pump of that line without stopping the operation of the entire unit, ensuring continuous oil supply to the rest of the system.

[0069] In practical applications, the three lubrication systems can operate independently, with adjustable paths and nozzle positions, offering strong adaptability. The overall structure is compact, operates smoothly, and requires only periodic checks of oil levels and nozzle status, making maintenance convenient. Especially in environments with complex multi-bearing structures and significantly varying lubrication requirements, this device can meet the on-site needs of multi-point precision lubrication, demonstrating high practical value and reliability.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A multi-point oil supply lubrication device for a phase modifier bearing, characterized by, It comprises a storage and supply tank, an oil supply access pipe, three oil pumps, three sets of oil supply branch pipe assemblies and an adjusting and mounting protection frame. The top of the storage and supply tank is provided with an oil supply access pipe for connecting an external oil supply device to supplement lubricating oil in the storage and supply tank. Three oil pumps are fixedly mounted on the storage and supply tank. The three oil pumps are connected with three sets of oil supply branch pipe assemblies and used to extract lubricating oil in the storage and supply tank and separately deliver the lubricating oil to the corresponding oil supply branch pipe assemblies for point supply. An adjusting and mounting protection frame capable of adjusting and protecting the positions of the three sets of oil supply branch pipe assemblies is arranged on one side of the top of the storage and supply tank. The adjusting and mounting protection frame comprises a mounting plate mounted on the storage and supply tank and three protection pipe racks capable of being adjusted in height and respectively penetrating the three sets of oil supply branch pipe assemblies.

2. The phase modulator bearing multi-point feed lubrication device according to claim 1, characterized in that The oil supply branch pipe assembly comprises an oil supply branch pipe and a lubricating oil spray head. One end of the oil supply branch pipe is connected with an oil outlet interface of the corresponding oil pump. The other end of the oil supply branch pipe is movably arranged in a protection pipe of the protection pipe rack and connected with the lubricating oil spray head. The lubricating oil spray head is connected to the protection pipe.

3. The PM motor bearing multi-point oil supply lubrication device according to claim 2, characterized in that, The protection pipe rack is arranged on the mounting plate. The protection pipe rack comprises a protection pipe, a base, a limiting pipe body, a first fixed sleeve and a second fixed sleeve. The limiting pipe body is vertically fixedly arranged on the base. The base is arranged on the mounting plate. The first fixed sleeve is sleeved on the limiting pipe body. The protection pipe is of a hollow structure and vertically arranged with the limiting pipe body. The protection pipe and the limiting pipe body are connected through the first fixed sleeve. The first fixed sleeve is provided with a locking structure and can be used for height adjustment and locking of the protection pipe relative to the base after the protection pipe is adjusted in movement. The second fixed sleeve is sleeved on the other end of the protection pipe. The second fixed sleeve is connected with the lubricating oil spray head. The second fixed sleeve can be rotationally adjusted relative to the protection pipe and fixed through the locking structure to adjust the spraying direction.

4. The PM motor bearing multi-point oil supply lubrication device according to claim 3, characterized in that, The protection pipe is provided with an outlet at the position connected with the second fixed sleeve, through which the oil supply branch pipe can movably extend out of the protection pipe. The lubricating oil spray head is mounted on the second fixed sleeve and connected with the end of the oil supply branch pipe extending out of the outlet.

5. A multi-point feed lubrication arrangement for a phase-modulator bearing according to any one of claims 2-4, characterized in that A stop valve for controlling flow and a pressure gauge for monitoring oil pressure parameters are arranged on the oil supply branch pipe.

6. The PM motor bearing multi-point oil supply lubrication device according to claim 1, characterized in that, The storage and supply tank is a square tank. An oil cavity is arranged inside the storage and supply tank.

7. The PM motor bearing multi-point oil supply lubrication device according to claim 1, characterized in that, The oil pumps are electrically driven oil pumps. The three oil pumps work independently to respectively control three oil supply circuits.

8. The PMB multi-point oil supply lubrication device according to claim 1 or 7, characterized by An electric control box is arranged on one side of the tank for independently controlling the start-stop state and oil supply time of the three oil pumps. The electric control box is provided with a switch button, an operation indicator light and a state display screen.

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