A lubricant monitoring device and system

Abstract

The application is suitable for the field of lubrication technology, and provides a lubricant monitoring device and system.The lubricant monitoring device comprises a shell, a filtering module and a detection module.The shell has an inner cavity and a first inlet communicating with the inner cavity.The filtering module is installed in the inner cavity.The filtering module is formed with a filtering cavity, a second inlet, an overflow hole and a magnetic attraction hole communicating with the filtering cavity.The lubricant can enter the filtering cavity through the first inlet and the second inlet in sequence and flow out through the overflow hole.The magnetic attraction hole is used for adsorbing metal particles in the lubricant.The detection module can be installed on at least one of the shell and the filtering module.The degree of blockage of the magnetic attraction hole is detected through the detection module, and the content of the metal particles in the lubricant is determined, so that the lubricant can be replaced or cleaned in time, the good lubrication effect of the lubricant is maintained, the wear speed of the bearing is slowed down, and the reliability is improved.

Description

Technical Field

[0001] This application relates to the field of lubrication technology, and more specifically, to a lubricant monitoring device and system. Background Technology

[0002] As a key component in mechanical equipment, rolling bearings directly affect the overall operating efficiency and service life of the machine due to their performance and reliability. To reduce wear, bearings typically rely on lubricants (lubricating oil or grease) for lubrication and protection. However, as the lubricant is used for a longer period, the content of metal particle impurities in the lubricant increases, affecting its lubrication effect and accelerating the wear process of the bearing. Summary of the Invention

[0003] The purpose of this application is to provide a lubricant monitoring device and system, which aims to solve the technical problem in the prior art that the increased content of metal particle impurities in the lubricant leads to accelerated bearing wear.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a lubricant monitoring device, comprising: A shell having an inner cavity, and a first inlet communicating with the inner cavity is formed on the shell; The filter module is installed in the inner cavity. The filter module forms a filter cavity and a second inlet and an overflow hole that communicate with the filter cavity. The lubricant can enter the filter cavity through the first inlet and the second inlet in sequence and flow out through the overflow hole. The filter module also forms a magnetic suction hole that communicates with the filter cavity. The magnetic suction hole is used to adsorb metal particles in the lubricant. A detection module, installed in the housing and / or filter module, is used to detect the degree of blockage in the magnetic suction hole.

[0005] In one possible design, the filter module includes a filter collection section and a magnetic suction section. The filter collection section is hollow and has a second inlet and an overflow hole. The magnetic suction section has a magnetic suction hole that communicates with the internal space of the filter collection section.

[0006] In one possible design, the filter collection section has a tubular structure, and at least one end of the filter collection section is provided with a magnetic attraction section, with the magnetic attraction hole on the magnetic attraction section facing the inner hole of the filter collection section.

[0007] In one possible design, magnetic suction parts are provided at both ends of the filter collection section, and the filter collection section and each magnetic suction part are arranged to form a filter cavity.

[0008] In one possible design, the magnetic attraction part located at one end of the filter collection part is the first magnetic attraction part, and the magnetic attraction part located at the other end of the filter collection part is the second magnetic attraction part. The magnetic field strength of the first magnetic attraction part is greater than that of the second magnetic attraction part.

[0009] In one possible design, the first magnetic attraction part includes two or more first annular magnetic elements, and the second magnetic attraction part includes at least one second annular magnetic element, wherein the number of first annular magnetic elements is greater than the number of second annular magnetic elements.

[0010] In one possible design, the detection module includes a transmitter and a receiver, which are spaced apart along the length of the filter section. The filter section and the magnetic attraction section are located between the transmitter and the receiver. The transmitter and the receiver are respectively positioned opposite the magnetic attraction hole along the length of the filter section. The transmitter is used to emit a light beam to the receiver, and the receiver is used to receive the light beam and sense the light intensity of the light beam.

[0011] In one possible design, the filter module also includes a base tube and support parts. The base tube is installed on the inner wall of the inner cavity, and two support parts are installed at intervals along the length of the base tube. Each support part has a support hole that runs through the base tube along its length. The filter collection section is located in the base tube, and both ends of the filter collection section are respectively inserted into the support holes on the two support sections; the base tube has an inlet and a outlet, the inlet is located between the first inlet and the second inlet, and the outlet is located below the filter collection section. The lubricant can enter the filter collection section through the first inlet, the inlet and the second inlet in sequence, and the lubricant can also be discharged through the overflow hole and the outlet in sequence. The magnetic suction part is inserted into the base tube, and at least one end of the filter collection part is provided with a magnetic suction part.

[0012] In one possible design, the lubricant monitoring device also includes a temperature regulation module installed in the inner cavity and located between the first inlet and the second inlet, the temperature regulation module being used to regulate the temperature of the lubricant.

[0013] In one possible design, the temperature regulation module includes an oil collecting component and a temperature regulating unit. The oil collecting component is installed in the inner cavity and located between the first inlet and the second inlet. The oil collecting component is provided with a through hole, through which the lubricant can enter the filter chamber in sequence by passing through the first inlet, the through hole and the second inlet. The temperature regulating unit is installed on the oil collecting component and is used to regulate the temperature of the lubricant on the oil collecting component.

[0014] In one possible design, the lubricant monitoring device further includes a control module, and the temperature regulation module further includes a temperature detector installed on the oil collecting component. The control module is connected to the temperature detector and the temperature regulation unit via signals. The temperature detector is used to detect the temperature value of the lubricant on the oil collecting component and feed it back to the control module. The control module is used to control the working mode of the temperature regulation unit according to the temperature value.

[0015] In one possible design, the lubricant monitoring device also includes an alarm connected to the detection module. The alarm is used to issue an alert when the degree of blockage in the magnetic suction orifice is greater than or equal to a warning value; and / or, The lubricant monitoring device also includes a monitor installed in the inner cavity and a display installed outside the housing. The monitor and the display are connected by signals. The monitor is used to monitor the real-time scene in the inner cavity and display it on the display.

[0016] This application also provides a lubricant monitoring system, including a device to be monitored and a lubricant monitoring device provided by any of the above technical solutions. The device to be monitored includes a bearing, the bearing has a lubricant outlet, and a first inlet in the lubricant monitoring device is connected to the lubricant outlet.

[0017] The beneficial effects of the lubricant monitoring device provided in this application are as follows: Compared with the prior art, in the process of the lubricant entering the filter chamber through the first inlet and the second inlet and flowing out through the overflow hole, the metal particles in the lubricant can be attracted by the magnetic suction hole. As the number of metal particles in the magnetic suction hole increases, the degree of blockage of the magnetic suction hole increases. By detecting the degree of blockage of the magnetic suction hole through the detection module, the content of metal particles in the lubricant can be determined, so as to replace or clean the lubricant in time, so as to maintain the good lubrication effect of the lubricant, slow down the wear rate of the bearing, and improve reliability.

[0018] The beneficial effects of the lubricant monitoring system provided in this application are as follows: Compared with the prior art, since the lubricant monitoring system of this application includes the lubricant monitoring device provided by any of the above-mentioned technical solutions, it has at least all the beneficial effects of the above-mentioned lubricant detection device, which will not be repeated here. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a cross-sectional structural schematic diagram of a lubricant monitoring device provided in one embodiment of this application; Figure 2 This is a schematic diagram of the cross-sectional structure of the bearing of the device under test in the relevant technology; Figure 3 This is a cross-sectional structural diagram of the filter module in a lubricant monitoring device provided in one embodiment of this application; Figure 4 This is a cross-sectional structural schematic diagram of the filter collection section in a lubricant monitoring device provided in one embodiment of this application; Figure 5 This is a cross-sectional structural schematic diagram of the temperature regulation module in a lubricant monitoring device provided in one embodiment of this application; Figure 6 This is a top view of the temperature regulation module in a lubricant monitoring device provided in one embodiment of this application.

[0021] The details of the reference numerals used in the above figures are as follows: 11. Lubricant outlet; 12. Lubricant inlet; 100. Shell; 110. Outer shell tube; 111. First inlet; 112. First annular mounting platform; 113. Second annular mounting platform; 114. Mounting port; 120. Limiting plate; 130. End plate; 140. Inner cavity; 200, Filter module; 201, Filter chamber; 210, Filter collection section; 211, Second inlet; 212, Overflow hole; 220, Magnetic suction section; 2201, Magnetic suction hole; 221, First annular magnetic component; 222, Second annular magnetic component; 230, Base tube; 231, Liquid inlet; 232, Liquid outlet; 233, First annular limiting platform; 234, Second annular limiting platform; 240, Support section; 241, Support hole; 250, Centerline annular limiting block; 260, First end annular limiting block; 270, Second end annular limiting block; 300. Detection module; 310. Transmitter; 320. Receiver; 400. Temperature control module; 410. Oil collection component; 411. Base plate; 4111. Through hole; 412. Flanged edge; 420. Temperature control unit; 430. Temperature detector; 440. Mounting component; 500. Control module; 600, Alarm; 710. Monitor; 720. Display; 730. Control switch; 740. Infrared wireless communication module. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0023] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0024] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 structure 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.

[0025] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0026] Pumps, motors, and other equipment are critical to nuclear safety in nuclear power plants. Damage to these components can disrupt the normal operation of the nuclear power generator sets and even compromise the overall safety of the nuclear power plant. Rolling bearings, as core components in pumps, motors, and other similar equipment, are essential for ensuring the safety of the equipment.

[0027] During the operation of rolling bearings, lubricant primarily serves to reduce friction. However, with the accumulation of operating time, tiny metal particles can form inside the rolling bearing due to fatigue wear, pitting, or foreign object intrusion. These metal particles mix with the lubricant and, with the circulation of the lubricant, enter the rolling contact area of ​​the bearing, causing abrasive wear and accelerating the bearing's wear process. If not addressed promptly, bearing wear will rapidly deteriorate, eventually leading to equipment failure. Traditional maintenance strategies typically involve periodically replacing the lubricant or periodically shutting down for inspection. However, these methods often have a lag, failing to detect and address issues when the metal particle content in the lubricant just reaches the warning threshold. This results in the equipment continuing to operate in a potentially faulty state, increasing the risk of unexpected shutdowns.

[0028] To address the aforementioned technical problems, this application provides a lubricant monitoring device and system. To illustrate the technical solution described in this application, a detailed description is provided below with reference to specific drawings and embodiments.

[0029] like Figure 1 As shown, one embodiment of this application provides a lubricant monitoring device, including a housing 100, a filter module 200, and a detection module 300. The housing 100 provides installation space and physical support for the filter module 200 to protect the filter module 200, and also prevents lubricant from leaking into the external environment.

[0030] The housing 100 has an inner cavity 140, and a first inlet 111 communicating with the inner cavity 140 is formed on the housing 100. The inner cavity 140 is used to accommodate the filter module 200 and lubricant, such as... Figure 1 and Figure 2 As shown, the first inlet 111 is used to connect with the lubricant outlet 11 of the bearing in the device to be monitored, so as to introduce the lubricant into the inner cavity 140.

[0031] Optionally, the side wall of the housing 100 is also provided with a return port (not shown in the figure) that communicates with the inner cavity 140. The return port is used to communicate with the lubricant inlet 12 of the bearing in the device to be monitored, so that the lubricant can flow back to the device to be monitored and ensure the good circulation of the lubricant.

[0032] Optionally, such as Figure 1 As shown, the housing 100 can be tubular, box-shaped, or other irregularly shaped. In one example, the housing 100 is a tubular structure. Specifically, the housing 100 includes an outer shell tube 110, a limiting plate 120, and an end plate 130; the outer shell tube 110 is a hollow tubular structure, with one end of the outer shell tube 110 having an opening 114; a first annular mounting platform 112 is formed on the inner wall of the outer shell tube 110, facing the mounting opening 114; a second annular mounting platform 113 is also formed on the inner wall of the outer shell, both the first annular mounting platform 112 and the second annular mounting platform 113 being coaxially arranged with the outer shell tube 110, the second annular mounting platform 113 being located on the side of the first annular mounting platform 112 away from the mounting opening 114 and facing the mounting opening 114. The limiting plate 120 is mounted on the second annular mounting platform 113, and the end plate 130 is mounted on the first annular mounting platform 112 to cover the mounting opening 114. The inner wall of the outer casing tube 110, the limiting plate 120 and the end plate 130 form an inner cavity 140, and the first inlet 111 is opened in the side wall of the outer casing tube 110 in the area opposite to the inner cavity 140.

[0033] like Figure 1 As shown, the filter module 200 is installed in the inner cavity 140. The filter module 200 forms a filter cavity 201 and a second inlet 211 and an overflow hole 212 communicating with the filter cavity 201. The second inlet 211 is used to allow lubricant to flow into the filter cavity 201, and the overflow hole 212 is used to allow lubricant to flow out of the filter cavity 201. Therefore, lubricant can enter the filter cavity 201 in sequence through the first inlet 111 and the second inlet 211 and flow out through the overflow hole 212.

[0034] In this embodiment, the first inlet 111 and the second inlet 211 are arranged sequentially along the flow direction of the lubricant. For example, when the lubricant flowing out of the lubricant outlet 11 of the bearing flows from top to bottom, the second inlet 211 is located below the first inlet 111 to ensure that the lubricant can enter the filter chamber 201 sequentially through the first inlet 111 and the second inlet 211.

[0035] Optionally, the lubricant monitoring device may also include a pumping mechanism, which is located at the first inlet 111 and is used to connect to the lubricant outlet 11 of the bearing in the device to be monitored. The lubricant is pumped into the inner cavity 140 through the pumping mechanism, and the lubricant has a tendency to flow towards the second inlet 211 after entering the inner cavity 140.

[0036] In one example, the first inlet 111 is located on the top wall of the housing 100, and the filter module 200 is located directly below the first inlet 111. The first inlet 111 and the second inlet 211 are positioned opposite each other. With this configuration, when the lubricant is discharged from the lubricant outlet 11 of the bearing, the lubricant can flow downward under its own gravity, thereby entering the filter chamber 201 through the first inlet 111 and the second inlet 211 in sequence.

[0037] For ease of description, the following text will use the example of the first entrance 111 and the second entrance 211 being arranged vertically at intervals, with the first entrance 111 located above the second entrance 211.

[0038] like Figure 1 or Figure 3 As shown, the filter module 200 also has a magnetic suction hole 2201 communicating with the filter chamber 201. The magnetic suction hole 2201 is used to adsorb metal particles in the lubricant. It is worth noting that the magnetic suction hole 2201 refers to a hole with a magnetic field. When the lubricant flows through the filter chamber 201, at least some of the metal particles in the lubricant can be adsorbed into the magnetic suction hole 2201. Understandably, as the operating time of the monitored equipment accumulates, the content of metal particles in the lubricant continuously increases, and the number of metal particles in the magnetic suction hole 2201 also continuously increases, causing the degree of blockage of the magnetic suction hole 2201 to continuously increase. The detection module 300 detects the degree of blockage of the magnetic suction hole 2201, thereby determining the content of metal particles in the lubricant.

[0039] In some examples, the filter module 200 includes a magnetic part 220, which is magnetic and has the aforementioned magnetic hole 2201. In other examples, the inner wall of the filter cavity 201 has a magnetic hole 2201, and a magnet is installed on the inner wall of the magnetic hole 2201 to distribute a magnetic field within the magnetic hole 2201.

[0040] Optionally, the inner diameter of the magnetic suction hole 2201 is 2.5mm to 9.5mm. For example, the inner diameter of the magnetic suction hole 2201 can be 2.5mm, 3mm, 6mm, 9mm or 9.5mm, etc., and the specific size of the inner diameter of the magnetic suction hole 2201 can be selected according to actual needs.

[0041] The detection module 300 is used to detect the degree of blockage of the magnetic suction hole 2201. By detecting the degree of blockage of the magnetic suction hole 2201, the content of metal particles in the lubricant can be determined. When the degree of blockage of the magnetic suction hole 2201 reaches the warning value, it indicates that the content of metal particles in the lubricant is high, and the lubricant needs to be replaced or cleaned. Optionally, the detection module 300 can be installed in the housing 100 or in the filter module 200; or, part of the structure of the detection module 300 can be installed in the housing 100, and another part can be installed in the filter module 200.

[0042] In some examples, the detection module 300 may include a sensor (e.g., a photoelectric sensor, an inductive sensor, or other suitable sensor) to directly detect the degree of blockage in the magnetic suction hole 2201. In other examples, the detection module 300 may also include a visual detector (e.g., an infrared camera, a macro vision module, etc.) to acquire image information of the magnetic suction hole 2201 and analyze the image information to determine the degree of blockage in the magnetic suction hole 2201.

[0043] The lubricant monitoring device provided in this application embodiment allows metal particles in the lubricant to be attracted by the magnetic suction hole 2201 during the process of the lubricant sequentially entering the filter chamber 201 through the first inlet 111 and the second inlet 211 and flowing out through the overflow hole 212. As the number of metal particles in the magnetic suction hole 2201 increases, the degree of blockage of the magnetic suction hole 2201 increases. By detecting the degree of blockage of the magnetic suction hole 2201 through the detection module 300, the content of metal particles in the lubricant can be determined, thereby allowing the lubricant to be replaced or cleaned in a timely manner to maintain the good lubrication effect of the lubricant, slow down the wear rate of the bearing, and improve reliability.

[0044] In one possible design, such as Figure 3As shown, the filter module 200 includes a filter collection section 210 and a magnetic attraction section 220. The filter collection section 210 is hollow and has a second inlet 211 and an overflow hole 212. The magnetic attraction section 220 has a magnetic attraction hole 2201, which communicates with the internal space of the filter collection section 210. In this embodiment, the internal space of the filter collection section 210 is also the filter chamber 201. It should be noted that the magnetic attraction section 220 has a magnetic structure. Since the magnetic attraction hole 2201 communicates with the internal space of the filter collection section 210, when the lubricant enters the internal space of the filter collection section 210 through the second inlet 211, the metal particles in the lubricant can be attracted by the magnetic attraction section 220 and placed in the magnetic attraction hole 2201.

[0045] In the embodiments of this application, such as Figure 1 As shown, the filter collection section 210 is installed in the inner cavity 140 and located directly below the first inlet 111. The second inlet 211 is opened at the top of the filter collection section 210, and the first inlet 111 and the second inlet 211 are opposite each other in the vertical direction. The overflow hole 212 can be opened on at least one side of the filter collection section 210 in the horizontal direction, or the overflow hole 212 can also be opened at the bottom of the filter collection section 210; the magnetic suction section 220 can be located on at least one side of the filter collection section 210 in the horizontal direction. In one example, with Figure 3 Taking the direction as an example, overflow holes 212 are opened on the front and rear sides of the filter collection section 210, and magnetic suction sections 220 are respectively provided on the left and right sides of the filter collection section 210.

[0046] Optionally, the outline shape of the second inlet 211 can be circular, square, or any other arbitrary shape. Optionally, the number of second inlets 211 can be one or more. Figure 4 As shown, there are multiple second inlets 211, which are distributed at intervals along the horizontal direction on the top of the filter collection section 210.

[0047] Optionally, there can be multiple overflow holes 212, which are spaced apart on both sides of the filter collection section 210 in the horizontal direction. In some examples, the cross-sectional area of ​​the overflow holes 212 is smaller than that of the second inlet 211. This arrangement increases the resistance encountered by the lubricant when it flows out of the filter collection section 210, which helps to prolong the residence time of the lubricant in the filter collection section 210, thereby allowing the metal particles in the lubricant to be fully attracted by the magnetic adsorption section 220.

[0048] In one possible design, such as Figure 4As shown, the distance D1 between the overflow hole 212 and the bottom wall of the filter chamber 201 is 0.8mm to 2.2mm. It is worth noting that when there are multiple overflow holes 212, specifically, the distance D1 between the overflow hole 212 closest to the bottom wall of the filter chamber 201 and the bottom wall of the filter chamber 201 is 0.8mm to 2.2mm, while the distance D2 between the other overflow holes 212 and the bottom wall of the filter chamber 201 can be greater than 2.2mm or within the range of 0.8mm to 2.2mm.

[0049] First, it should be noted that the overflow hole 212 mentioned in this paragraph refers to the overflow hole 212 closest to the bottom wall of the filter chamber 201. The distance D1 between the overflow hole 212 and the bottom wall of the filter chamber 201 should not be too large or too small. If the distance D1 between the overflow hole 212 and the bottom wall of the filter chamber 201 is too large, a "dead zone" will easily form between the overflow hole 212 and the bottom wall of the filter chamber 201. The lubricant entering the "dead zone" cannot flow out of the filter chamber 201, resulting in the lubricant not circulating. If the distance D1 between the overflow hole 212 and the bottom wall of the filter chamber 201 is too small, the lubricant can easily flow directly out from the overflow hole 212, resulting in the lubricant staying in the filter chamber 201 for too short a time. Metal particles in the lubricant will flow out of the filter chamber 201 with the lubricant before being attracted by the magnetic part 220, affecting the accuracy of monitoring. As can be seen from the above, this setting can create a relatively slow flow area between the overflow hole 212 and the bottom wall of the filter chamber 201. While ensuring that the lubricant can circulate smoothly, it further extends the residence time of the lubricant in the filter collection section 210, so that the metal particles in the lubricant can be further fully adsorbed by the magnetic adsorption section 220, effectively improving the accuracy of monitoring.

[0050] In some examples, such as Figure 4 As shown, there are multiple overflow holes 212, which are divided into two groups. Each group includes at least one overflow hole 212, with one group of overflow holes 212 located above the other group. The distance D1 between the overflow holes 212 in the lower group and the bottom wall of the filter chamber 201 can be 0.8mm, 1mm, 1.5mm, 2mm, or 2.2mm, etc. The distance D2 between the overflow holes 212 in the upper group and the bottom wall of the filter chamber 201 can be greater than 2.2mm, or it can be between 0.8mm and 2.2mm and greater than the distance D1 between the overflow holes 212 in the lower group and the bottom wall of the filter chamber 201.

[0051] Optionally, the filter collection section 210 can be a tubular structure, a box-shaped structure, or any other suitable shape. In one possible design, such as Figure 3As shown, the filter collection section 210 has a tubular structure, and at least one end of the filter collection section 210 is provided with a magnetic attraction section 220. The magnetic attraction hole 2201 on the magnetic attraction section 220 is opposite to the inner hole of the filter collection section 210. By making the filter collection section 210 into a tubular structure, the space occupied can be reduced; and the housing 100 can also be made into a tubular structure to better adapt to narrow space layouts. By providing the magnetic attraction section 220 at the end of the filter collection section 210, and opening the magnetic attraction hole 2201 in the area where the magnetic attraction section 220 is opposite to the inner hole of the filter collection section 210, the magnetic attraction hole 2201 is directly opposite to the inner hole of the filter collection section 210, so that the magnetic attraction section 220 can attract metal particles in the lubricant.

[0052] In this embodiment, the length direction of the filter collection section 210 is set at an angle to the flow direction of the lubricant. In one example, the lubricant flows from top to bottom, and the length direction of the filter collection section 210 is horizontal. Taking the length direction of the filter collection section 210 as horizontal from left to right as an example, the overflow hole 212 can be opened on the front and rear sides of the filter collection section 210, and at least one of the left and right ends of the filter collection section 210 is provided with a magnetic suction part 220. Optionally, the second inlet 211 can be an elongated opening, and the length direction of the second inlet 211 is parallel to the length direction of the filter collection section 210, thereby facilitating the formation of a second inlet 211 with a larger flow area on the tubular filter collection section 210, which is beneficial for the lubricant to enter the filter collection section 210 through the second inlet 211.

[0053] Optionally, the filter collection section 210 is made of a non-magnetic material. For example, the filter collection section 210 can be made of high-strength industrial plastic, or it can be made of composite material. This configuration prevents the filter collection section 210 from being magnetized by the magnetic attraction section 220 and from interfering with the magnetic field distribution around the magnetic attraction section 220, thereby preventing metal particles from being attracted to the filter collection section 210 before entering the magnetic attraction hole 2201, thus improving the accuracy of monitoring.

[0054] Optionally, such as Figure 1 As shown, the housing 100 is also made of a non-magnetic material. For example, the housing 100 may be made of plastic, composite material, or other suitable material. In one example, the housing 100 is made of non-magnetic stainless steel plate. This avoids interference between the housing 100 and the magnetic field around the magnetic attraction part 220, while ensuring the structural strength of the housing 100 so that it can provide stable physical support for the filter module 200.

[0055] In one possible design, such as Figure 3As shown, magnetic attraction parts 220 are respectively provided at both ends of the filter collection section 210, and the filter collection section 210 and each magnetic attraction part 220 surround to form a filter cavity 201. This arrangement ensures that both ends of the filter cavity 201 have a magnetic field, increasing the coverage area of ​​the magnetic field, so that metal particles in the lubricant near both ends of the filter collection section 210 can be attracted by the magnetic attraction parts 220, thereby improving the accuracy of monitoring.

[0056] In one possible design, the magnetic attraction part 220 located at one end of the filter collection part 210 is the first magnetic attraction part, and the magnetic attraction part 220 located at the other end of the filter collection part 210 is the second magnetic attraction part. The magnetic field strength of the first magnetic attraction part is greater than that of the second magnetic attraction part. This arrangement makes the adsorption capacity of the first magnetic attraction part higher than that of the second magnetic attraction part, thereby allowing most metal particles to be adsorbed by the first magnetic attraction part into the magnetic attraction hole 2201 of the first magnetic attraction part. This makes the change in the degree of blockage of the magnetic attraction hole 2201 of the first magnetic attraction part more significant, facilitating the detection module 300 to accurately detect the blockage state of the magnetic attraction hole 2201, thereby improving the sensitivity and judgment accuracy of the detection module 300.

[0057] In some embodiments, the first magnetic attraction portion includes two or more first annular magnetic elements 221, and the second magnetic attraction portion includes at least one second annular magnetic element 222, wherein the number of first annular magnetic elements 221 is greater than the number of second annular magnetic elements 222. This arrangement ensures that the magnetic field strength of the first magnetic attraction portion is greater than that of the second magnetic attraction portion. It should be noted that, in this embodiment, the magnetic attraction hole 2201 of the first magnetic attraction portion includes the inner hole of each first annular magnetic element 221, and the magnetic attraction hole 2201 of the second magnetic attraction portion includes the inner hole of each second annular magnetic element 222.

[0058] Optionally, the first annular magnetic component 221 and the second annular magnetic component 222 can have the same shape and structure. This facilitates mass production or the purchase of multiple annular magnetic components with the same structure, which can then be assembled according to actual needs.

[0059] In one example, such as Figure 3 As shown, the filter collection section 210 has two annular magnetic elements at its first end and one annular magnetic element at its second end. The annular magnetic element at the first end of the filter collection section 210 is the first annular magnetic element 221, and the annular magnetic element at the second end of the filter collection section 210 is the second annular magnetic element.

[0060] In one possible design, such as Figure 1As shown, the detection module 300 includes a transmitter 310 and a receiver 320, which are spaced apart. A magnetic suction unit 220 is located between the transmitter 310 and the receiver 320, and a magnetic suction hole 2201 is positioned directly opposite the transmitter 310 and the receiver 320. The transmitter 310 emits a light beam to the receiver 320, and the receiver 320 receives the light beam passing through the magnetic suction hole 2201 and senses the intensity of the light beam. The light beam emitted by the transmitter 310 passes through the magnetic suction hole 2201 and is received by the receiver 320. The receiver 320 senses the intensity of the light beam after it passes through the magnetic suction hole 2201, thereby determining the degree of blockage in the magnetic suction hole 2201. The weaker the light intensity, the higher the degree of blockage in the magnetic suction hole 2201, reflecting a higher content of metal particles in the lubricant; conversely, the stronger the light intensity, the lower the degree of blockage in the magnetic suction hole 2201, reflecting a lower content of metal particles in the lubricant. Alternatively, the transmitter 310 may be used to emit infrared beams, visible beams, or laser beams, etc., without being limited to a single type.

[0061] Optionally, the transmitter 310 and receiver 320 can be mounted separately in the housing 100 or separately in the filter module 200, or one of the transmitter 310 and receiver 320 can be mounted in the housing 100 and the other in the filter module 200. For example, both the transmitter 310 and receiver 320 can be mounted in the housing 100. Specifically, as... Figure 1 As shown, one of the transmitter 310 and the receiver 320 is mounted on the end plate 130, and the other is mounted on the limiting plate 120. In one specific example, the transmitter 310 is mounted on the end plate 130, and the receiver 320 is mounted on the limiting plate 120. The filter module 200 is located between the transmitter 310 and the receiver 320, and the light beam emitted by the transmitter 310 can pass through the magnetic suction hole 2201 and the filter cavity 201 and be received by the receiver 320.

[0062] In one possible design, such as Figure 3 As shown, the filter module 200 also includes a base tube 230 and a support portion 240. (As indicated...) Figure 1 As shown, the base tube 230 is installed on the inner wall of the inner cavity 140. The base tube 230 is used to provide a mounting base for the filter collection section 210 and the magnetic suction section 220. By mounting the filter collection section 210 and the magnetic suction section 220 on the base tube 230, it is beneficial to improve the structural compactness.

[0063] In one example, such as Figure 1 As shown, the two ends of the base tube 230 are connected to the end plate 130 and the limiting plate 120, respectively. Optionally, the base tube 230 can be connected to the end plate 130 and the limiting plate 120 by welding, snap-fitting, screw fastening or other suitable means, which is not limited here.

[0064] like Figure 3 As shown, two support portions 240 are installed at intervals along the length of the base tube 230, and each support portion 240 has a support hole 241 extending through the base tube 230. In this embodiment, the support portions 240 are inserted into the base tube 230, and the support portions 240 and the base tube 230 can be connected by welding, snap-fitting, interference fit, or other suitable methods. The filter collection portion 210 is located between the two support portions 240 in the base tube 230, and both ends of the filter collection portion 210 are respectively inserted into the support holes 241 on the two support portions 240. The filter collection portion 210 is supported by the two support portions 240, so that the filter collection portion 210 is stably installed in the base tube 230.

[0065] like Figure 3 As shown, the base tube 230 has an inlet 231 and an outlet 232, as... Figure 1 and Figure 3 As shown, the inlet 231 is located between the first inlet 111 and the second inlet 211, and the outlet 232 is located below the filter collection section 210. The lubricant can enter the filter collection section 210 in sequence through the first inlet 111, the inlet 231 and the second inlet 211, and the lubricant can also be discharged in sequence through the overflow hole 212 and the outlet 232.

[0066] In this embodiment, the length direction of the base tube 230 is parallel to the length direction (horizontal direction) of the filter collection section 210. The liquid inlet 231 is opened at the top of the base tube 230, so that the first inlet 111, the liquid inlet 231 and the second inlet 211 are arranged sequentially from top to bottom, so that the lubricant can enter the filter chamber 201 sequentially through the first inlet 111, the liquid inlet 231 and the second inlet 211 under its own gravity.

[0067] In this embodiment, the magnetic suction part 220 is also inserted into the base tube 230, and at least one end of the filter collection part 210 is provided with the magnetic suction part 220. That is to say, the number of magnetic suction parts 220 can be one or two. When there is one magnetic suction part 220, the magnetic suction part 220 is inserted into the base tube 230 and located at one end of the filter collection part 210; specifically, the magnetic suction part 220 is located on the side of one support part 240 away from the other support part 240. When there are two magnetic suction parts 220, the two magnetic suction parts 220 are inserted into the base tube 230, and the two magnetic suction parts 220 are respectively located at both ends of the filter collection part 210; specifically, the magnetic suction parts 220 are respectively provided on the side of the two support parts 240 away from each other.

[0068] For ease of description, the two support portions 240 will be referred to as the first support portion and the second support portion, respectively. In a specific example, such as Figure 1 and Figure 3As shown, the base tube 230 is located between the limiting plate 120 and the end plate 130 and is directly opposite the transmitter 310 and the receiver 320, respectively. A first support portion is located at the end of the filter collection portion 210 near the limiting plate 120, and a second support portion is located at the end of the filter collection portion 210 near the end plate 130. In one example, as... Figure 3 As shown, magnetic suction portions 220 (first magnetic suction portion and second magnetic suction portion) are respectively provided at both ends of the filter collection portion 210. The first magnetic suction portion includes two first annular magnetic elements 221, and the second magnetic suction portion includes one second annular magnetic element 222. The two first annular magnetic elements 221 are inserted into the base tube 230 and located between the first support portion and the limiting plate 120, and the second annular magnetic element 222 is inserted into the base tube 230 and located between the second support portion and the end plate 130. The inner holes of the two first annular magnetic elements 221 and the second annular magnetic element 222 are both directly opposite to the inner hole of the filter collection portion 210, that is, the magnetic suction holes 2201 of the first magnetic suction portion and the magnetic suction holes 2201 of the second magnetic suction portion are both directly opposite to the inner hole of the filter collection portion 210.

[0069] Optionally, such as Figure 3 As shown, a first annular limiting platform 233 and a second annular limiting platform 234 protrude from the inner wall surface of the base tube 230. Both the first annular limiting platform 233 and the second annular limiting platform 234 are coaxially arranged with the base tube 230 and spaced apart along the length of the base tube 230. Figure 1 and Figure 3 As shown, the first annular limiting platform 233 is closer to the limiting plate 120 than the second annular limiting platform 234. The first support portion is supported on the side of the first annular limiting platform 233 near the limiting plate 120, and the second support portion is supported on the side of the second annular limiting platform 234 near the end plate 130. An intermediate annular limiting block is provided between the two first annular magnetic components 221, and a first end annular limiting block 260 is provided between the first annular magnetic component closest to the limiting plate 120 and the limiting plate 120, so that the first annular magnetic component 221 closest to the limiting plate 120 is limited between the intermediate annular limiting block and the first end annular limiting block 260, and so that the first support portion and the other first annular magnetic component 221 are limited between the first annular limiting platform 233 and the intermediate annular limiting block. A second end ring-shaped limiting block 270 is provided between the second annular magnetic component 222 and the end plate 130, so that the second annular magnetic component 222 and the second support portion are limited between the second end ring-shaped limiting block 270 and the end plate 130.

[0070] In one possible design, such as Figure 1 As shown, the lubricant monitoring device also includes a temperature regulation module 400, which is installed in the inner cavity 140 and located between the first inlet 111 and the second inlet 211. The temperature regulation module 400 is used to regulate the temperature of the lubricant.

[0071] The viscosity of lubricants typically changes with temperature. When the temperature is too low, the lubricant becomes viscous, its fluidity decreases, or it even loses its fluidity, preventing it from flowing properly. Optionally, the temperature regulating module 400 is used to heat the lubricant. When the lubricant temperature is too low, the temperature regulating module 400 heats the lubricant to reduce its viscosity, thereby improving its fluidity to some extent and ensuring that the lubricant can pass smoothly through the filter module 200.

[0072] Furthermore, the temperature regulation module 400 can also be used to reduce the temperature of the lubricant. When the lubricant temperature is too high, the lubricant viscosity is too low, resulting in an excessively fast flow rate and a short residence time of the lubricant in the filter chamber 201. Therefore, when the lubricant temperature is too high, reducing the lubricant temperature to a suitable temperature through the temperature regulation module 400 can appropriately reduce the fluidity of the lubricant, allowing it to maintain a relatively stable flow rate.

[0073] In summary, by setting the temperature adjustment module 400, the temperature of the lubricant can be adjusted to a suitable temperature, so that the lubricant maintains a suitable viscosity, ensuring that the lubricant can flow smoothly and that the metal particles in the lubricant have enough time to be attracted by the magnetic part 220.

[0074] In one possible design, such as Figure 1 As shown, the temperature regulation module 400 includes an oil collecting component 410 and a temperature regulation unit 420. The oil collecting component 410 is installed in the inner cavity 140 and located between the first inlet 111 and the second inlet 211. The oil collecting component 410 is provided with a through hole 4111, through which the lubricant can enter the filter chamber 201 in sequence by passing through the first inlet 111, the through hole 4111 and the second inlet 211. The temperature regulation unit 420 is installed on the oil collecting component 410 and is used to regulate the temperature of the lubricant on the oil collecting component 410.

[0075] In the above configuration, when the lubricant enters the inner cavity 140 through the first inlet 111, it will first flow into the oil collection member 410. The temperature of the lubricant will be adjusted to a suitable temperature by the temperature adjustment unit 420, and then enter the filter cavity 201 through the through hole 4111 and the second inlet 211 in sequence.

[0076] In this embodiment, the oil collecting component 410 is connected to the inner wall of the inner cavity 140. Specifically, at least one of the inner wall of the outer casing 110, the end plate 130, and the limiting plate 120 is connected to the oil collecting component 410. Optionally, the oil collecting component 410 and the inner wall of the inner cavity 140 can be connected by welding, gluing, snap-fitting, or any other suitable method, without limitation.

[0077] In some embodiments, the oil collecting member 410 is located above the filter module 200. Specifically, the oil collecting member 410 is located above the base tube 230, and the oil collecting member 410 has a through hole 4111 in the area opposite the drain port 232 in the vertical direction. When the lubricant flows into the inner cavity 140 from the first inlet 111, it is first caught by the oil collecting member 410, then flows out through the through hole 4111 on the oil collecting member 410, and then enters the filter cavity 201 through the inlet port 231 and the second inlet 211 in sequence.

[0078] Optionally, the oil collecting element 410 can be a disc-shaped structure, a funnel-shaped structure, or other suitable shape. In one example, such as Figure 5 As shown, the oil collecting component 410 includes a base plate 411 and a flange 412. Figure 5 In the indicated orientation, the base plate 411 is horizontally positioned, and a flange 412 is connected to at least one side of the base plate 411 in the horizontal direction. The flange 412 protrudes from the upper surface of the base plate 411, and an oil collecting space is formed by the flange 412, the base plate 411, and the inner wall of the inner cavity 140. For example... Figure 5 As shown, flanges 412 are connected to the left and right sides of the base plate 411, respectively. Optionally, flanges 412 can also be connected to the front and rear sides of the base plate 411. Optionally, the flanges 412 and the base plate 411 can be connected by any suitable method such as welding or snap-fitting, or the flanges 412 and the base plate 411 can be connected as a single structure by integral casting. Optionally, at least one of the flanges 412 and the base plate 411 is connected to the inner wall of the inner cavity 140. In this example, through holes 4111 are specifically formed in the base plate 411. Optionally, there are multiple through holes 4111, which are distributed at intervals in the base plate 411.

[0079] In this embodiment, the temperature regulating unit 420 can be installed on the bottom surface, top surface, side surface, or any other suitable position of the oil collecting member 410. In some embodiments, such as Figure 5 and Figure 6 As shown, the temperature regulating unit 420 is installed on the bottom surface of the oil collecting member 410 and is located in the area of ​​the oil collecting member 410 where the through hole 4111 is not provided, so as to prevent the temperature regulating unit 420 from blocking the lubricant from flowing out of the oil collecting member 410 through the through hole 4111.

[0080] In a specific example, such as Figure 1 As shown, the temperature regulating unit 420 is installed on the side of the base plate 411 near the filter module 200. Figure 1In the indicated orientation, the temperature regulating unit 420 is mounted on the bottom surface of the base plate 411. Optionally, the temperature regulating unit 420 can be connected to the base plate 411 by adhesive, snap-fit, or any other suitable method. In one example, the temperature regulating module 400 further includes a mounting member 440, which is mounted on the bottom surface of the base plate 411. A fixing hole is formed between the mounting member 440 and the base plate 411, and the temperature regulating unit 420 is inserted into the fixing hole to mount the temperature regulating unit 420 to the base plate 411.

[0081] In some embodiments, the temperature regulating unit 420 includes a heater that releases heat during operation. When the lubricant temperature is too low, the heater can be activated to heat the lubricant on the oil collector 410. Optionally, the heater can be an electric heating element or any other suitable heating structure. Figure 5 As shown, when the heater is an electric heating tube, the mounting part 440 can be a tube clamp, and the number of mounting parts 440 is at least two. The two mounting parts 440 are installed at intervals on the bottom surface of the base plate 411. The two ends of the heater are respectively limited between the two mounting parts 440 and the base plate 411 to ensure that the heater is stably installed on the base plate 411.

[0082] In some embodiments, the temperature regulating unit 420 includes a cooler for cooling the lubricant flowing through the oil collecting member 410. When the lubricant temperature is too high or the viscosity is too low, the cooler is activated to lower the lubricant temperature to a suitable range. Optionally, the cooler can be a thermoelectric cooler or other suitable cooling structure, which is not limited thereto. In the embodiments of this application, the temperature regulating unit 420 includes at least one of a heater and a cooler.

[0083] In some examples, such as Figure 1 As shown, the temperature regulating unit 420 is connected to a control switch 730, which is used to switch the power on / off state of the temperature regulating unit 420. Operators can manually switch the power on / off state of the temperature regulating unit 420 according to the ambient temperature of the equipment being monitored. For example, the temperature regulating unit 420 includes a heater. When the ambient temperature of the equipment being monitored is high, the control switch 730 can disconnect the electrical connection between the heater and the power supply, thereby stopping the heater from heating and preventing the lubricant from becoming too hot and its viscosity too low. When the ambient temperature of the equipment being monitored is low, the control switch 730 can connect the heater to the power supply, causing the heater to start working and heating the lubricant, preventing the lubricant from becoming too viscous due to low temperature and thus reducing its fluidity.

[0084] In some embodiments, the lubricant monitoring device further includes a temperature detection module, which may specifically be a temperature sensor, a thermometer, or other structure capable of detecting temperature. The temperature detection module is mounted on the outer side of the housing 100 and detects the temperature of the environment in which the lubricant monitoring device is located, thereby determining the temperature of the environment in which the lubricant is located. When the temperature detection module is a temperature sensor, it may be connected to a display screen so that operators can know the temperature of the environment in which the lubricant is located, thereby determining whether the lubricant on the oil collection component 410 needs to be heated or cooled. In one example, the temperature detection module is mounted on the side of the end plate 130 opposite to the inner cavity 140.

[0085] Optionally, a vibration detection module may also be installed on the outer side of the housing 100. The vibration detection module is used to detect the vibration frequency and amplitude of the housing 100 to determine the vibration frequency and amplitude of the device under monitoring, thereby improving the comprehensiveness of the lubricant monitoring device. In one example, the vibration detection module is installed on the side of the end plate 130 opposite to the inner cavity 140.

[0086] In one possible design, the lubricant monitoring device further includes a control module 500, and the temperature regulation module 400 further includes a temperature detector 430 installed on the oil collection component 410. The control module 500 is connected to both the temperature detector 430 and the temperature regulation unit 420 via signals. The temperature detector 430 is used to detect the temperature value of the lubricant on the oil collection component 410 and feed it back to the control module 500. The control module 500 is used to control the operating mode of the temperature regulation unit 420 according to the temperature value.

[0087] It is worth noting that when the temperature regulating unit 420 includes only a heater, its operating modes include a heating mode and a standby mode. When the temperature regulating unit 420 is in heating mode, the temperature regulating unit 420 (i.e., the heater) starts working to heat the lubricant on the oil collecting part 410. When the temperature regulating unit 420 includes only a cooler, its operating modes include a cooling mode and a standby mode. When the temperature regulating unit 420 is in cooling mode, the temperature regulating unit 420 (i.e., the cooler) starts working to cool the lubricant on the oil collecting part 410. When the temperature regulating unit 420 is in standby mode, its operation is suspended. When the temperature regulating unit 420 includes both a heater and a cooler, its operating modes include heating mode, cooling mode, and standby mode.

[0088] Taking the temperature regulation unit 420 as an example, which only includes a heater, during operation, the temperature detector 430 periodically or continuously detects the temperature value of the lubricant on the oil collection part 410 and feeds back the detection result to the control module 500. The control module 500 determines whether the temperature value is within the suitable temperature range. If the temperature value is within the suitable temperature range, the control module 500 controls the temperature regulation unit 420 to switch to standby mode. If the temperature value is lower than the minimum suitable temperature value, the control module 500 controls the temperature regulation unit 420 to switch to heating mode to heat the lubricant.

[0089] As can be seen from the above, by setting the temperature detector 430 and the control module 500, the lubricant monitoring device can automatically adjust the working mode of the temperature regulating unit 420 according to the temperature of the lubricant, thereby automatically adjusting the lubricant to be within a suitable temperature range, making the monitoring more timely and the degree of automation higher.

[0090] In some embodiments, the control module 500 is signal-connected to the control switch 730. Specifically, the control module 500 controls the on / off state of the temperature regulating unit 420 by manipulating the on / off state of the control switch 730, thereby adjusting the working mode of the temperature regulating unit 420.

[0091] In one possible design, the lubricant monitoring device also includes an alarm 600, which is signal-connected to the detection module 300. The alarm 600 is used to sound an alarm when the degree of blockage of the magnetic suction hole 2201 is greater than or equal to a warning value. Optionally, the alarm 600 can be a buzzer alarm, an indicator light alarm, or an audible and visual alarm, etc. This configuration allows staff to promptly detect when the blockage of the magnetic suction hole 2201 reaches the warning value, thus enabling timely cleaning or replacement of the lubricant.

[0092] In some embodiments, the alarm 600 and the detection module 300 are signal-connected through the control module 500. Specifically, the alarm 600 and the detection module 300 are respectively signal-connected to the control module 500. The detection module 300 feeds back the detection result of the magnetic hole 2201 to the control module 500. When the blockage degree of the magnetic hole 2201 reaches the warning value, the control module 500 controls the alarm 600 to sound an alarm.

[0093] In one possible design, the lubricant monitoring device further includes a monitor 710 installed in the inner cavity 140 and a display 720 installed outside the housing 100. The monitor 710 and the display 720 are signal-connected. The monitor 710 monitors the real-time scene in the inner cavity 140 and displays it on the display 720. This configuration allows operators to observe the operating status of various components in the inner cavity 140 and the flow of lubricant through the display 720, achieving visualized monitoring of the operating conditions of the inner cavity 140, facilitating timely detection of abnormalities and implementation of maintenance measures.

[0094] In some embodiments, the monitor 710 and the display 720 are connected by a control module 500. Specifically, the monitor 710 and the display 720 are respectively connected to the control module 500. The monitor 710 sends the acquired image information of the inner cavity 140 to the control module 500, which processes the image information and then sends it to the display 720 for display.

[0095] It should be noted that, in the embodiments of this application, the signal connection can be achieved wirelessly via a wireless communication module (such as a Bluetooth module or an infrared wireless communication module), or it can be achieved wired via a data cable. In one example, such as Figure 1 As shown, the control module 500 is connected to an infrared wireless communication module 740, which enables wireless signal connection with at least one of the following: the detection module 300, the control switch 730, the temperature detector 430, the alarm 600, the display 720, and the monitor 710.

[0096] Another embodiment of this application also provides a lubricant monitoring system, such as Figure 1 and Figure 2 As shown, the lubricant monitoring system includes a device to be monitored and a lubricant monitoring device provided in any of the above embodiments. The device to be monitored includes a bearing, which has a lubricant outlet 11. The first inlet 111 of the lubricant monitoring device is connected to the lubricant outlet 11. Since the lubricant monitoring system provided in this embodiment includes the lubricant monitoring device provided in any of the above embodiments, the lubricant monitoring system has at least all of the above-mentioned beneficial effects, which will not be repeated here.

[0097] like Figure 2 As shown, the bearing in the lubricant monitoring device also has a lubricant inlet 12, which can be connected to the return port on the housing 100. When the lubricant flows out through the overflow hole 212, it can flow into the bearing through the return port in sequence to realize the recycling of the lubricant.

[0098] In this embodiment, the bearing can specifically be a rolling bearing, and the device to be monitored can specifically be a mechanical device with rolling bearings, such as a motor, water pump, or fan. By configuring the lubricant monitoring device provided in the above embodiments of this application in the device to be monitored, the content of metal particles in the lubricant inside the bearing of the device to be monitored can be monitored, and intervention prompts can be issued when the bearing shows early wear. This allows users to promptly purify or replace the lubricant inside the bearing to avoid deterioration of lubrication conditions; or to replace the bearing in a timely manner to avoid damage to the equipment and serious economic losses or even nuclear safety threats to the nuclear power plant.

[0099] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A lubricant monitoring device, characterized in that, include: A housing having an inner cavity, wherein a first inlet communicating with the inner cavity is formed on the housing; A filter module is installed in the inner cavity. The filter module has a filter chamber and a second inlet and an overflow hole communicating with the filter chamber. Lubricant can enter the filter chamber through the first inlet and the second inlet in sequence and flow out through the overflow hole. The filter module also has a magnetic suction hole communicating with the filter chamber. The magnetic suction hole is used to adsorb metal particles in the lubricant. A detection module, installed in the housing and / or the filter module, is used to detect the degree of blockage of the magnetic suction hole.

2. The lubricant monitoring device as described in claim 1, characterized in that, The filtration module includes a filter collection section and a magnetic suction section. The filter collection section is hollow and has a second inlet and an overflow hole. The magnetic suction section has a magnetic suction hole that communicates with the internal space of the filter collection section.

3. The lubricant monitoring device as described in claim 2, characterized in that, The filter collection section has a tubular structure, and at least one end of the filter collection section is provided with the magnetic attraction section, and the magnetic attraction hole on the magnetic attraction section is opposite to the inner hole of the filter collection section.

4. The lubricant monitoring device as described in claim 3, characterized in that, The filter collection section is provided with magnetic suction sections at both ends, and the filter collection section and each of the magnetic suction sections are arranged to form the filter cavity.

5. The lubricant monitoring device as described in claim 4, characterized in that, The magnetic attraction part located at one end of the filter collection part is the first magnetic attraction part, and the magnetic attraction part located at the other end of the filter collection part is the second magnetic attraction part. The magnetic field strength of the first magnetic attraction part is greater than the magnetic field strength of the second magnetic attraction part.

6. The lubricant monitoring device as described in claim 5, characterized in that, The first magnetic attraction part includes two or more first annular magnetic elements, and the second magnetic attraction part includes at least one second annular magnetic element, wherein the number of the first annular magnetic elements is greater than the number of the second annular magnetic elements.

7. The lubricant monitoring device as described in claim 3, characterized in that, The detection module includes a transmitter and a receiver spaced apart, with the magnetic attraction part located between the transmitter and the receiver, and the magnetic attraction hole facing the transmitter and the receiver respectively; the transmitter is used to emit a light beam to the receiver, and the receiver is used to receive the light beam passing through the magnetic attraction hole and sense the light intensity of the light beam.

8. The lubricant monitoring device as described in claim 3, characterized in that, The filter module further includes a base tube and a support section. The base tube is installed on the inner wall of the inner cavity. Two support sections are installed at intervals along the length of the base tube. Each support section has a support hole that extends through the base tube along its length. The filter collection section is located in the base tube, and both ends of the filter collection section are respectively inserted into the support holes on the two support sections; the base tube has an inlet and a outlet, the inlet is located between the first inlet and the second inlet, and the outlet is located below the filter collection section; the lubricant can enter the filter collection section in sequence through the first inlet, the inlet and the second inlet, and the lubricant can also be discharged in sequence through the overflow hole and the outlet. The magnetic suction part is inserted into the base tube, and the magnetic suction part is provided at least one end of the filter collection part.

9. The lubricant monitoring device according to any one of claims 1 to 8, characterized in that, The lubricant monitoring device further includes a temperature regulation module, which is installed in the inner cavity and located between the first inlet and the second inlet. The temperature regulation module is used to regulate the temperature of the lubricant.

10. The lubricant monitoring device as described in claim 9, characterized in that, The temperature regulation module includes an oil collecting component and a temperature regulation unit. The oil collecting component is installed in the inner cavity and located between the first inlet and the second inlet. The oil collecting component is provided with a through hole, and the lubricant can enter the filter cavity by passing through the first inlet, the through hole and the second inlet in sequence. The temperature regulating unit is installed on the oil collecting component, and the temperature regulating unit is used to regulate the temperature of the lubricant on the oil collecting component.

11. The lubricant monitoring device as described in claim 10, characterized in that, The lubricant monitoring device further includes a control module, and the temperature regulation module further includes a temperature detector installed on the oil collecting component. The control module is signal-connected to the temperature detector and the temperature regulation unit respectively. The temperature detector is used to detect the temperature value of the lubricant on the oil collecting component and feed it back to the control module. The control module is used to control the working mode of the temperature regulation unit according to the temperature value.

12. The lubricant monitoring device according to any one of claims 1 to 8, characterized in that, The lubricant monitoring device further includes an alarm, which is signal-connected to the detection module. The alarm is used to issue an alert when the degree of blockage of the magnetic suction hole is greater than or equal to a warning value; and / or, The lubricant monitoring device also includes a monitor installed in the inner cavity and a display installed outside the housing. The monitor and the display are signal-connected. The monitor is used to monitor the real-time scene in the inner cavity and display it on the display.

13. A lubricant monitoring system, characterized in that, The device includes a device to be monitored and a lubricant monitoring device as described in any one of claims 1 to 12, wherein the device to be monitored includes a bearing having a lubricant outlet, and the first inlet of the lubricant monitoring device is connected to the lubricant outlet.

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