Electromagnetic pump with vibration detection and lubricating liquid filtering functions and use method

Abstract

The invention belongs to the technical field of pump valves, particularly relates to an electromagnetic pump with vibration detection and lubricating liquid filtering functions and a using method, and aims to solve the problems that a magnetic force driving part and a pump cavity part of a traditional electromagnetic pump cannot be effectively isolated, an effective vibration detection means is lacked, and cooling lubricating liquid filtering is poor. A pump cavity is formed by a pump body, a pump cover and the like, a pump shaft is driven to rotate through magnetic force, and a mechanical seal isolates magnetic force driving and the pump cavity part; a detection structure is arranged between the base and the mounting plate and can detect the vibration frequency and amplitude; the liquid injection box is matched with the filtering structure to filter the cooling lubricating liquid, and the filter screen can be replaced by the rotating ring; the mounting plate vibrates to drive the rotating disc to rotate, and the filter screen is blown and cleaned in all directions; according to the electromagnetic pump, the service life can be prolonged, the vibration can be detected in real time, the cooling lubricating liquid is effectively filtered, and the filter screen is convenient to clean.

Description

Technical Field

[0001] The present invention relates to the technical field of pumps and valves, and in particular to an electromagnetic pump with vibration detection and lubricating liquid filtering functions and a use method thereof. Background Art

[0002] In the field of electromagnetic pumps, traditional electromagnetic pumps have many problems during operation. On the one hand, since the magnetic drive part and the pump cavity part are not effectively isolated, the particulate medium in the liquid can easily enter the isolation sleeve, causing wear on the pump shaft. At the same time, sludge accumulation will cause the magnetic force of the internal magnetic rotor to decrease and heat to accumulate, affecting the service life of the electromagnetic pump. On the other hand, the electromagnetic pump vibrates as a whole during operation, and the existing technology lacks effective vibration detection means, making it difficult to grasp the internal wear of the electromagnetic pump in real time and unable to perform timely inspection and maintenance. In addition, when injecting cooling lubricant into the electromagnetic pump, if the particulate medium in the cooling lubricant is not filtered, it will also cause wear on the inside of the electromagnetic pump. Moreover, after the filter structure has been used for a period of time, the medium on the filter screen is not easy to remove, affecting the subsequent filtration effect.

[0003] In response to the above problems, the present invention document proposes an electromagnetic pump with vibration detection and lubricating fluid filtering functions and a method of use. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the existing magnetic drive part and the pump cavity part that are not effectively isolated, lack of effective vibration detection means and poor cooling and lubricating fluid filtration, and to propose an electromagnetic pump with vibration detection and lubricating fluid filtration functions and a method of use.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An electromagnetic pump with vibration detection and lubricating fluid filtering functions, comprising:

[0007] A pump body, one side of the pump body is fixedly connected to a pump cover, and a side of the pump cover close to the pump body is fixedly connected to a stationary ring seat, wherein the pump body, the pump cover and the stationary ring seat form a pump cavity;

[0008] A pump shaft is rotatably connected to the pump cover, one end of the pump shaft passes through the stationary ring seat and extends into the pump cavity, and the outer wall of the pump shaft is fixedly connected to the impeller;

[0009] A shaft sleeve is fixedly connected to the outer wall of the pump shaft, and one end of the shaft sleeve extends into the stationary ring seat and is fixedly connected to the stationary ring seat;

[0010] An isolation sleeve is fixedly connected to the side of the pump cover away from the pump body, an inner magnetic rotor is provided in the isolation sleeve, and one end of the pump shaft extends into the isolation sleeve and is fixedly connected to the inner magnetic rotor;

[0011] A connecting frame is provided on one side of the pump cover, the connecting frame is rotatably connected to the outer magnetic rotor, one end of the outer magnetic rotor is fixedly connected to the external motor output shaft, one end of the isolation sleeve extends into the outer magnetic rotor, and the outer magnetic rotor and the inner magnetic rotor form an electromagnetic drive to drive the pump shaft to rotate;

[0012] It also includes a mechanical seal, which is arranged between the stationary ring seat and the thrust ring assembly and sleeved on the outer wall of the sleeve, and is used to isolate the magnetic drive part from the pump chamber part to prevent granular media from entering the isolation sleeve and causing sleeve wear and silt accumulation, resulting in a decrease in the magnetic force of the inner magnetic rotor and heat accumulation.

[0013] In a possible design, the pump further includes a base and a mounting plate, wherein the mounting plate is slidably connected to the base, and the pump body and the pump cover are fixedly connected to the top of the mounting plate;

[0014] The detection structure includes a plurality of fixed columns fixedly connected to the inner wall of the bottom of the base and a plurality of sliding rods fixedly connected to the bottom of the mounting plate, and is used to detect the vibration frequency and amplitude of the pump body and the pump cover when the pump shaft rotates;

[0015] A liquid injection box is fixedly connected to the inner wall of the bottom of the base. A connecting pipe is provided on one side of the liquid injection box for injecting cooling lubricating liquid. The top of the liquid injection box is fixedly connected to the liquid injection pipe, and the top end of the liquid injection pipe passes through the mounting plate and is connected to the cooling lubricating liquid inlet valve on the pump cover;

[0016] The filtering structure includes a fixed ring fixedly connected to the outer wall of the liquid injection box and a rotating ring slidably connected to the inner wall of the fixed ring, which is used to filter the cooling lubricating liquid injected into the pump cover;

[0017] The bottom end of the sliding rod slides and extends into the fixed column and cooperates with the pressure sensor in the fixed column. When the mounting plate vibrates, the sliding rod squeezes the pressure sensor to detect the vibration frequency and amplitude.

[0018] In one possible design, the isolation sleeve is a gradient functional isolation sleeve, the inner layer of which is a 0.3 mm thick high-purity alumina ceramic with a resistivity of >10 14 Ω·cm, the middle layer is a 0.1mm copper mesh thermal conductive layer, and the outer layer is a 0.2mm carbon fiber reinforced polymer. The three layers are integrated by spark plasma sintering to achieve a gradient distribution of electrical insulation, thermal conductivity and mechanical strength.

[0019] In one possible design, the detection structure also includes a sliding plate slidably connected to the fixed column, and a spring is provided between the bottom of the sliding plate and the bottom inner wall of the fixed column. The spring has a wire diameter of 1.0-2.0 mm, an outer diameter of 12-18 mm, and a free height of 40-60 mm. A pressure sensor is fixedly embedded on the top inner wall of the sliding plate, and the bottom end of the sliding rod cooperates with the pressure sensor to detect the frequency and amplitude of pressure value changes when the mounting plate vibrates.

[0020] In one possible design, the filtering structure also includes a liquid inlet arranged on one side of the liquid filling tank, one end of the connecting pipe extends to the fixed ring and corresponds to the position of the liquid inlet, multiple filter screens are fixed in the rotating ring, two isolation plates are fixed in the fixed ring, and a liquid filling tank and a cleaning tank are formed by the fixed ring, the rotating ring and the isolation plate. The connecting pipe extends into the liquid filling tank to limit the flow position of the cooling lubricating liquid and filter the particulate medium through the filter screen.

[0021] In one possible design, an annular groove is provided on the inner wall of the fixed ring, an inner gear ring is fixed on the inner wall of the rotating ring, and the inner gear ring extends into the annular groove, a second gear is connected to the liquid filling box, one side of the second gear extends into the annular groove and engages with the inner gear ring, and is used to drive the rotating ring to rotate to replace the filter.

[0022] In one possible design, a self-cleaning unit is further included, and the self-cleaning unit includes:

[0023] A protective tube, fixedly connected to an inner wall of one side of the liquid injection box;

[0024] A rotating tube is rotatably connected to the protective tube, one end of the rotating tube is fixedly connected to a rotating disk, the rotating disk is located in the fixed ring, and a plurality of air outlet holes are provided on one side of the rotating disk;

[0025] An annular airbag is fixedly connected to the top of the liquid injection box, the top of the annular airbag is fixedly connected to the bottom of the mounting plate, the bottom of the annular airbag is fixedly connected to the air injection pipe, one end of the air injection pipe extends into the protective cylinder and is rotatably connected to the rotating pipe;

[0026] Among them, both the air inlet and the air injection pipe are equipped with a one-way valve, which is used to inject air into the rotating disk when the mounting plate vibrates, so as to spray air through the air outlet to remove the medium adsorbed on the filter screen.

[0027] In one possible design, a first gear is fixedly mounted on the outer wall of the rotating tube, a rack is fixedly connected to the bottom of the mounting plate, the bottom end of the rack seal passes through the top inner wall of the liquid injection box and extends into the protective tube in a sealed sliding manner, and the rack is engaged with the first gear to drive the rotating tube to rotate back and forth to achieve all-round air blowing cleaning.

[0028] In one possible design, a buffering and vibration-damping device is also included, which includes a plurality of L-shaped plates fixedly connected to the top of the base, and the bottom of one side of each L-shaped plate is fixedly connected to a cylinder. The cylinder is sealed and slidably connected to a piston rod, and the bottom end of the piston rod is fixedly connected to the top of the mounting plate. Inert gas is stored in the cylinder, which is used to compress the inert gas when the mounting plate vibrates to buffer vibration and reduce noise.

[0029] In this application, a method for using an electromagnetic pump with vibration detection and lubricating fluid filtration functions includes the following steps:

[0030] S1. The outer magnetic rotor is driven by a motor to rotate. The outer magnetic rotor and the inner magnetic rotor cooperate to form a magnetic drive, which in turn drives the inner magnetic rotor and the pump shaft to rotate. The pump shaft drives the pump cover to rotate, thereby operating the electromagnetic pump. The mechanical seal provided on the outer wall of the sleeve can isolate the magnetic drive part from the pump cavity part. When the electromagnetic pump is running, it can prevent the particulate medium in the liquid from entering the isolation sleeve, causing wear of the pump shaft and silt accumulation, which leads to a decrease in the magnetic force of the inner magnetic rotor and heat accumulation, thereby extending the service life. In addition, the isolation sleeve adopts the PLAN53A flushing solution to provide cooling for the mechanical seal and the inner magnetic rotor, to ensure that the mechanical seal and the inner magnetic rotor will not overheat and reduce the service life.

[0031] S2. When the electromagnetic pump is running, it will vibrate as a whole, driving the mounting plate to vibrate up and down. The mounting plate drives the sliding rod to vibrate, and the sliding rod squeezes the pressure sensor. The pressure sensor can detect the pressure signal it receives. The frequency of the electromagnetic pump vibration can be detected according to the frequency of the pressure change. The amplitude of the electromagnetic pump vibration can be detected according to the change of the pressure value. This is used to analyze the wear inside the electromagnetic pump. When the vibration amplitude and frequency reach the threshold, the electromagnetic pump needs to be shut down and its internal maintenance is carried out.

[0032] S3. When the electromagnetic pump drives the mounting plate to vibrate, the mounting plate drives the piston rod to vibrate up and down, compressing the inert gas in the cylinder. This converts the kinetic energy of the mounting plate vibration into the potential energy of air compression, thereby playing a buffering role, that is, preventing the electromagnetic pump vibration from causing damage to internal components and reducing the noise generated by vibration.

[0033] S4. When the electromagnetic pump is running, it is necessary to inject cooling lubricant into the gap between the isolation sleeve and the inner magnetic rotor to lubricate and cool the inner magnetic rotor. The cooling lubricant is injected into the inner magnetic rotor of the electromagnetic pump through the cooperation of the connecting pipe, the liquid injection tank and the liquid injection pipe to lubricate and cool it. During the injection process, the particulate medium in the cooling lubricant needs to be filtered to avoid wear inside the electromagnetic pump. Specifically, the lubricant is injected into the liquid injection bin through the connecting pipe and then injected into the liquid injection tank after being filtered through the filter. When the filter needs to be cleaned after being used for a long time, the second gear is driven to rotate by the motor, and the cooperation of the second gear and the inner gear ring drives the rotating ring to rotate. The rotating ring rotates the used filter from the liquid injection bin to the cleaning bin to replace the new filter for filtering.

[0034] S5. When the rotating ring rotates, the previously used filter just moves to the position of the rotating disk, and the air ejected from the rotating disk removes the filter medium on the filter. In specific operation, the vibration generated when the electromagnetic pump is running drives the mounting plate to move up and down. During the vibration process, the mounting plate can inject gas into the rotating disk through the air injection pipe and the one-way valve in the air inlet hole, and the mounting plate drives the rotating disk to rotate back and forth through the cooperation of the rack and the first gear, thereby being able to blow air to clean the filter in all directions, which is convenient for later use.

[0035] Beneficial Effects: By installing a detection structure between the base and the mounting plate, the present invention uses a pressure sensor to detect the pressure exerted on the sliding rod by the mounting plate's vibration, as well as the frequency of pressure fluctuations. This allows for accurate detection of the electromagnetic pump's vibration frequency and amplitude. This helps promptly detect wear within the electromagnetic pump, preventing equipment damage and safety accidents.

[0036] In this invention, a filter structure is installed on the outer wall of the injection tank, and the filter screen is used to filter the cooling lubricant entering the injection tank, effectively removing particulate matter from the lubricant. This prevents wear and tear on the electromagnetic pump and extends the service life of the equipment. Furthermore, the filter screen can be easily replaced by rotating the rotating ring, ensuring the continuity of the filtering effect.

[0037] In this invention, a rotating disk and air injection pipe are installed within the filter structure. The vibration generated by the electromagnetic pump drives the mounting plate up and down, injecting air from the injection tank into the rotating disk. As the rotating disk rotates, air ejected from the air outlet blows clean the filter screen in all directions, effectively removing adsorbed media. This maintains the filter screen's filtration performance and improves the cleanliness of the lubricating fluid.

[0038] In this invention, a cylinder and piston rod are placed on top of the base. The vibration generated by the electromagnetic pump drives the mounting plate up and down, compressing the inert gas within the cylinder. This converts the kinetic energy of the mounting plate's vibration into the potential energy of compressed air, providing a buffering effect. This not only prevents damage to internal components caused by electromagnetic pump vibration, but also reduces vibration noise, improving the working environment.

[0039] This invention utilizes a gradient functional isolation sleeve design with an inner layer of high-purity alumina ceramic, a middle layer of copper mesh heat-conducting layer, and an outer layer of carbon fiber-reinforced polymer. This structure not only provides excellent electrical insulation but also effectively conducts heat and enhances mechanical strength, thereby improving the operational stability and service life of the electromagnetic pump. Furthermore, the isolation sleeve utilizes the PLAN53A flushing solution to provide cooling for the mechanical seal and internal magnetic rotor, ensuring that these two elements do not overheat and reduce their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic cross-sectional view of an electromagnetic pump with vibration detection and lubricating fluid filtering functions provided by the present invention;

[0041] Figure 2 Based Figure 1 A in the middle is an enlarged structural diagram;

[0042] Figure 3 This is a three-dimensional structural diagram of the base and mounting plate of an electromagnetic pump with vibration detection and lubricating liquid filtering functions provided by the present invention;

[0043] Figure 4 This is a schematic three-dimensional cross-sectional view of the base of an electromagnetic pump with vibration detection and lubricating liquid filtering functions provided by the present invention;

[0044] Figure 5 This is a schematic diagram of a three-dimensional exploded structure of a fixed column, a sliding plate and a sliding rod of an electromagnetic pump with vibration detection and lubricating liquid filtering functions provided by the present invention;

[0045] Figure 6 This is a three-dimensional structural diagram of the liquid injection box, fixing ring and air inlet of an electromagnetic pump with vibration detection and lubricating liquid filtering functions provided by the present invention;

[0046] Figure 7 This is a schematic cross-sectional view of the liquid injection box, fixing ring and air inlet of an electromagnetic pump with vibration detection and lubricating liquid filtering functions provided by the present invention;

[0047] Figure 8 for Figure 7 The enlarged structural diagram at B in the middle;

[0048] Figure 9This is a schematic diagram of a three-dimensional exploded cross-section structure of a fixed ring and a rotating ring of an electromagnetic pump with vibration detection and lubricating liquid filtering functions provided by the present invention;

[0049] Figure 10 This is a schematic diagram of a three-dimensional exploded structure of a rotating tube, a first gear, and a rotating disk of an electromagnetic pump with vibration detection and lubricating liquid filtering functions provided by the present invention;

[0050] Figure 11 This is a schematic top view and cross-sectional structure diagram of a fixing ring, a pump cover and an isolation plate of an electromagnetic pump with vibration detection and lubricating liquid filtering functions provided by the present invention;

[0051] Figure 12 This is a schematic cross-sectional structural diagram of a cylinder of an electromagnetic pump with vibration detection and lubricating liquid filtering functions provided by the present invention.

[0052] In the figure: 1. Pump body; 2. Pump cover; 3. Pump shaft; 4. Impeller; 5. Stationary ring seat; 6. Shaft sleeve; 7. Mechanical seal; 8. Thrust ring assembly; 9. Sliding bearing; 10. Inner magnetic rotor; 11. Isolation sleeve; 12. Outer magnetic rotor; 13. Connecting frame; 14. Base; 15. Mounting plate; 16. Fixing column; 17. Sliding rod; 18. Rubber ring; 19. Spring; 20. Sliding plate; 21. Pressure sensor; 22. Liquid filling tank; 23. Liquid filling pipe; 24. , fixing ring; 25, connecting pipe; 26, rotating ring; 27, filter screen; 28, annular airbag; 29, air inlet; 30, air injection pipe; 31, protective tube; 32, rotating pipe; 33, rotating disk; 34, first gear; 35, rack; 36, annular groove; 37, inner gear ring; 38, second gear; 39, drain pipe; 40, isolation plate; 41, liquid injection tank; 42, cleaning tank; 43, L-shaped plate; 44, cylinder; 45, piston rod; 46, liquid inlet. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0054] In one embodiment: Figure 1 and Figure 2 , electromagnetic pump, relates to the field of pump and valve technology, the pump mainly includes a pump body 1, a pump cover 2, a pump shaft 3, an impeller 4, a static ring seat 5, a sleeve 6, a mechanical seal 7, a thrust ring assembly 8, a sliding bearing 9, an inner magnetic rotor 10, an isolation sleeve 11, an outer magnetic rotor 12, a connecting frame 13, a base 14, a mounting plate 15 and other components.

[0055] Reference Figure 1 and Figure 2A pump cover 2 is bolted to one side of the pump body 1. A stationary ring seat 5 is also bolted to the side of the pump cover 2 closest to the pump body 1. The pump body 1, pump cover 2, and stationary ring seat 5 form a pump chamber. A pump shaft 3 is rotatably connected to the pump cover 2. One end of the pump shaft 3 extends through the stationary ring seat 5 and into the pump chamber. An impeller 4, located within the pump chamber, is secured to the outer wall of the pump shaft 3 via a keyway and key block. Rotation of the pump shaft 3 drives the impeller 4, thereby transporting liquid. A sleeve 6 is also secured to the outer wall of the pump shaft 3. One end of the sleeve 6 extends into and is fixedly connected to the stationary ring seat 5. A thrust ring assembly 8 is sleeved on the outer wall of the pump shaft 3 to withstand axial thrust from the pump shaft 3. Two sliding bearings 9 are also sleeved on the outer wall of the pump shaft 3, located on the side of the thrust ring assembly 8 away from the sleeve 6. Both sliding bearings 9 are bolted to the pump cover 2 to support the rotation of the pump shaft 3.

[0056] Reference Figure 1 and Figure 2 An isolation sleeve 11 is fixed to the side of the pump cover 2 away from the pump body 1, and an inner magnetic rotor 10 is installed in the isolation sleeve 11. One end of the pump shaft 3 extends into the isolation sleeve 11 and is fixedly connected to the inner magnetic rotor 10 through a keyway and a key block. A connecting frame 13 is provided on one side of the pump cover 2, and an outer magnetic rotor 12 is rotatably connected to the connecting frame 13. One end of the outer magnetic rotor 12 is fixedly connected to the external motor output shaft, and one end of the isolation sleeve 11 extends into the outer magnetic rotor 12. The outer magnetic rotor 12 and the inner magnetic rotor 10 form an electromagnetic drive for driving the pump shaft 3 to rotate.

[0057] Reference Figure 1 The isolation sleeve 11 is a gradient function isolation sleeve, the inner layer is 0.3mm thick high purity alumina ceramic (resistivity> 10 14 Ω·cm), with a 0.1mm copper mesh heat-conducting middle layer and a 0.2mm carbon fiber reinforced polymer (CFRP) outer layer. These three layers are integrated through spark plasma sintering (SPS) to achieve a gradient distribution of electrical, thermal, and mechanical properties. This structure not only provides excellent electrical insulation but also effectively conducts heat and enhances mechanical strength, thereby improving the operational stability and service life of the electromagnetic pump.

[0058] Reference Figure 1 and Figure 2 A mechanical seal 7 is provided between the stationary ring seat 5 and the thrust ring assembly 8. The mechanical seal 7 is sleeved on the outer wall of the shaft sleeve 6. The mechanical seal 7 is used to isolate the magnetic drive portion from the pump chamber portion, preventing particulate media from entering the isolation sleeve 11, which may cause wear of the shaft sleeve 6, and silt accumulation, which may cause a decrease in the magnetic force of the inner magnetic rotor 10 and heat accumulation.

[0059] Reference Figure 1A base 14 and a mounting plate 15 are provided below the pump body 1 and pump cover 2. The mounting plate 15 slides within the base 14, and the pump body 1 and pump cover 2 are fixed to the top of the mounting plate 15. In order to detect the vibration frequency and amplitude of the pump body 1 and pump cover 2 when the pump shaft 3 rotates, a detection structure is provided between the base 14 and the mounting plate 15.

[0060] Reference Figure 1 、 Figure 4 and Figure 5 The detection structure includes a plurality of fixed columns 16 fixed to the bottom inner wall of the base 14 and a plurality of sliding rods 17 fixed to the bottom of the mounting plate 15. A sliding plate 20 slides in the fixed column 16, and a spring 19 is provided between the bottom of the sliding plate 20 and the bottom inner wall of the fixed column 16. The spring constant of the spring 19 ranges from 100N / m to 500N / m, and the specific value can be selected according to actual needs. The wire diameter of the spring 19 is 1.0mm, the outer diameter is 12mm, and the free height is 40mm. Both ends of the spring 19 are fixedly connected to the sliding plate 20 and the bottom inner wall of the fixed column 16 through a spring seat. A pressure sensor 21 is fixedly embedded in the top inner wall of the sliding plate 20, and the bottom end of the sliding rod 17 slides and extends into the fixed column 16 and cooperates with the pressure sensor 21.

[0061] When the electromagnetic pump is operating, it vibrates as a whole, causing the mounting plate 15 to vibrate up and down. Mounting plate 15 causes sliding rod 17 to vibrate, which in turn presses against pressure sensor 21. Pressure sensor 21 detects the pressure signal it receives and, based on the frequency of the pressure changes, determines the frequency of the electromagnetic pump's vibrations. Based on the changes in the pressure values, it detects the amplitude of the electromagnetic pump's vibrations. By analyzing the vibration frequency and amplitude, the wear and tear inside the electromagnetic pump can be determined. When the vibration amplitude and frequency reach preset thresholds, the electromagnetic pump needs to be shut down for maintenance.

[0062] Reference Figure 5 A rubber ring 18 is fixed to the top of the fixing column 16 to prevent the mounting plate 15 from colliding with the fixing column 16 when the mounting plate 15 moves downward, thereby protecting the equipment from damage.

[0063] Reference Figure 1 、 Figure 4 and Figure 6 A liquid injection tank 22 is also fixed to the bottom inner wall of the base 14. A connecting pipe 25 is provided on one side of the liquid injection tank 22 for injecting cooling lubricant into the liquid injection tank 22. A liquid injection pipe 23 is fixedly connected to the top of the liquid injection tank 22. The top end of the liquid injection pipe 23 passes through the mounting plate 15 and is connected to the cooling lubricant inlet valve on the pump cover 2. Cooling lubricant can be injected into the pump cover 2 through the liquid injection pipe 23 for lubrication and cooling.

[0064] Reference Figure 6 、 Figure 7 、 Figure 9 and Figure 11 To filter the cooling and lubricating liquid injected into the pump cover 2, a filtering structure is installed on the outer wall of the liquid injection tank 22. This filtering structure comprises a fixed ring 24 fixed to the outer wall of the liquid injection tank 22 and a rotating ring 26 sliding on the inner wall of the fixed ring 24. A liquid inlet 46 is located on one side of the liquid injection tank 22. One end of the connecting tube 25 is fixedly extended into the fixed ring 24, corresponding to the position of the liquid inlet 46. Multiple filter screens 27 are fixed within the rotating ring 26. These filter screens 27 cooperate with the connecting tube 25 and the liquid inlet 46 to filter the cooling and lubricating liquid entering the liquid injection tank 22. Two isolation plates 40 are fixed within the fixed ring 24. The fixed ring 24, the rotating ring 26, and the two isolation plates 40 form a liquid injection chamber 41 and a cleaning chamber 42 within the fixed ring 24. One end of the connecting tube 25 extends into the liquid injection chamber 41, limiting the flow of cooling and lubricating liquid within the fixed ring 24.

[0065] During operation, the electromagnetic pump requires the injection of cooling lubricant into the gap between the isolation sleeve 11 and the inner magnetic rotor 10 to lubricate and cool the inner magnetic rotor 10. This cooling lubricant is injected into the liquid injection chamber 41 through the connecting pipe 25, filtered through the filter 27, and then injected into the liquid injection tank 22. When the filter 27 needs to be cleaned after prolonged use, the motor drives the second gear 38 to rotate. The second gear 38, in conjunction with the internal gear ring 37, drives the rotating ring 26, which rotates the used filter 27 from the liquid injection chamber 41 to the cleaning chamber 42, replacing it with a new filter 27 for filtration.

[0066] Reference Figure 7-Figure 9 The inner wall of the fixed ring 24 is provided with an annular groove 36, and the inner wall of the rotating ring 26 is fixed with an inner gear ring 37, which extends into the annular groove 36. A second gear 38 is rotatably connected to the liquid injection tank 22. One side of the second gear 38 extends into the annular groove 36 and meshes with the inner gear ring 37. The rotation of the rotating ring 26 can be achieved by driving the second gear 38 with the motor.

[0067] Reference Figure 7 and Figure 10A protective sleeve 31 is fixed to the inner wall of one side of the liquid injection tank 22. A rotating tube 32 is rotatably connected to the protective sleeve 31. One end of the rotating tube 32 rotates and extends to the side of the liquid injection tank 22 and is fixed to a rotating disk 33, which is located inside the fixed ring 24. A plurality of air outlets are provided on one side of the rotating disk 33, through which air is ejected to remove the medium adsorbed on the filter 27. An annular airbag 28 is fixed to the top of the liquid injection tank 22. The top of the annular airbag 28 is fixedly connected to the bottom of the mounting plate 15. An air inlet 29 is provided on one side of the annular airbag 28, and an air injection tube 30 is fixed to the bottom of the annular airbag 28. One end of the air injection tube 30 is fixedly extended into the protective sleeve 31 and is rotatably connected to the rotating tube 32, used to inject air from the annular airbag 28 into the rotating tube 32. Both the air inlet 29 and the air injection tube 30 are equipped with one-way valves to ensure that air from the liquid injection tank 22 is continuously injected into the rotating disk 33 when the mounting plate 15 vibrates. A drain pipe 39 is fixed to the inner wall of the bottom of the fixing ring 24 , and one end of the drain pipe 39 extends to one side of the base 14 for discharging the removed medium to the outside.

[0068] Reference Figure 7 and Figure 10 A first gear 34 is fixedly mounted on the outer wall of the rotating tube 32, and a rack 35 is fixed to the bottom of the mounting plate 15. The bottom end of the rack 35 seals through the top inner wall of the liquid injection tank 22 and extends into the protective tube 31 in a sealed, sliding manner. The rack 35 meshes with the first gear 34. When the mounting plate 15 vibrates, the rack 35 and the first gear 34 cooperate to drive the rotating tube 32 to reciprocate, thereby driving the rotating disk 33 to reciprocate. As the rotating disk 33 rotates, air ejected from the air outlet of the rotating disk 33 cleans the filter 27 in all directions, facilitating subsequent use.

[0069] Reference Figure 7 and Figure 11 The length of the isolation plate 40 is greater than the diameter of the filter 27, and is used to prevent the cooling lubricating oil in the liquid filling chamber 41 from entering the cleaning chamber 42 through the filter 27 during the process of replacing the filter 27 by rotating the rotating ring 26.

[0070] In another embodiment: Figure 7 and Figure 10, an improvement based on Example 1: a plurality of L-shaped plates 43 are fixed to the top of the base 14, and a cylinder 44 is fixed to the bottom of one side of the L-shaped plate 43. A piston rod 45 is sealingly and slidingly connected in the cylinder 44, and the bottom end of the piston rod 45 is fixedly connected to the top of the mounting plate 15. Inert gas, such as nitrogen, is stored in the cylinder 44. When the electromagnetic pump drives the mounting plate 15 to vibrate, the piston rod 45 is driven to vibrate up and down by the mounting plate 15, thereby compressing the inert gas in the cylinder 44. In this way, the kinetic energy of the vibration of the mounting plate 15 is converted into the potential energy of air compression, thereby playing a buffering role. This not only prevents damage to internal components caused by the vibration of the electromagnetic pump, but also reduces the noise generated by vibration.

[0071] A method for using an electromagnetic pump with vibration detection and lubricating fluid filtering functions, comprising the following steps:

[0072] S1. The outer magnetic rotor 12 is driven to rotate by a motor, and the outer magnetic rotor 12 cooperates with the inner magnetic rotor 10 to form a magnetic drive, which in turn drives the inner magnetic rotor 10 and the pump shaft 3 to rotate. The pump shaft 3 drives the pump cover 2 to rotate, so as to operate the electromagnetic pump. The mechanical seal 7 arranged on the outer wall of the sleeve 6 can isolate the magnetic drive part from the pump chamber part, and can prevent the particulate medium in the liquid from entering the isolation sleeve 11 during the operation of the electromagnetic pump, thereby preventing the wear of the pump shaft 3 caused by the entry of the isolation sleeve 11 and the accumulation of silt, which leads to the decrease in the magnetic force of the inner magnetic rotor 10 and heat accumulation, thereby extending the service life. In addition, the isolation sleeve 11 adopts the PLAN53A flushing solution to provide cooling for the mechanical seal and the inner magnetic rotor 10, to ensure that the mechanical seal and the inner magnetic rotor 10 will not overheat and reduce the service life;

[0073] S2. When the electromagnetic pump is running, the entire electromagnetic pump will vibrate, driving the mounting plate 15 to vibrate up and down. The mounting plate 15 drives the sliding rod 17 to vibrate, and the sliding rod 17 squeezes the pressure sensor 21. The pressure sensor 21 can detect the pressure signal it receives. The frequency of the electromagnetic pump vibration can be detected according to the frequency of the pressure change. The amplitude of the electromagnetic pump vibration can be detected according to the change in the pressure value. The wear inside the electromagnetic pump is analyzed. When the vibration amplitude and frequency reach the threshold, the electromagnetic pump needs to be shut down and its internal maintenance is carried out (wear of the pump shaft 3 may cause vibration. At the same time, cavitation of the bearing and impeller 4 and axial thrust imbalance can also cause vibration);

[0074] S3. When the electromagnetic pump drives the mounting plate 15 to vibrate, the mounting plate 15 drives the piston rod 45 to vibrate up and down, compressing the inert gas in the cylinder 44. This converts the kinetic energy of the vibration of the mounting plate 15 into the potential energy of air compression, thereby playing a buffering role, that is, preventing damage to internal components caused by the vibration of the electromagnetic pump and reducing the noise generated by the vibration;

[0075] S4. When the electromagnetic pump is running, it is necessary to inject cooling lubricant into the gap between the isolation sleeve 11 and the inner magnetic rotor 10 to lubricate and cool the inner magnetic rotor 10. The cooling lubricant is injected into the inner magnetic rotor 10 in the electromagnetic pump through the cooperation of the connecting pipe 25, the liquid injection tank 22 and the liquid injection pipe 23 to lubricate and cool it. During the injection process, the particulate medium in the cooling lubricant needs to be filtered to avoid wear inside the electromagnetic pump. Specifically, the lubricant is injected into the liquid injection bin 41 through the connecting pipe 25 and then injected into the liquid injection tank 22 after being filtered through the filter screen 27. When the filter screen 27 is used for a long time and the filtered medium on it needs to be removed, the second gear 38 is driven by the motor to rotate. The cooperation of the second gear 38 and the inner gear ring 37 drives the rotating ring 26 to rotate. The rotating ring 26 rotates the used filter screen 27 from the liquid injection bin 41 to the cleaning bin 42, so as to replace the new filter screen 27 for filtering.

[0076] S5. When the rotating ring 26 rotates, the previously used filter 27 just moves to the position of the rotating disk 33, and the air ejected from the rotating disk 33 clears the filter medium on the filter 27; in specific operation, the vibration generated when the electromagnetic pump is running drives the mounting plate 15 to move up and down, and the mounting plate 15 can inject gas into the rotating disk 33 through the air injection pipe 30 and the one-way valve in the air inlet hole 29 during the vibration process, and the mounting plate 15 drives the rotating disk 33 to rotate back and forth through the cooperation of the rack 35 and the first gear 34, so that the filter 27 can be blown clean in all directions, which is convenient for later use.

[0077] However, as is well known to those skilled in the art, the working principle and wiring method of the pressure sensor are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0078] The drawings in this application are for illustrative purposes only. The sizes and shapes of the components shown are not intended to be limiting, but are merely for illustrative purposes. In actual implementation, the components may be appropriately configured and adjusted based on specific needs and actual conditions.

[0079] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An electromagnetic pump with vibration detection and lubricating fluid filtering functions, characterized in that: include: A pump body (1), one side of the pump body (1) is fixedly connected to a pump cover (2), a side of the pump cover (2) close to the pump body (1) is fixedly connected to a stationary ring seat (5), and the pump body (1), the pump cover (2) and the stationary ring seat (5) form a pump chamber; A pump shaft (3) is rotatably connected to the pump cover (2), one end of the pump shaft (3) passes through the stationary ring seat (5) and extends into the pump cavity, and the outer wall of the pump shaft (3) is fixedly connected to the impeller (4); A shaft sleeve (6) is fixedly connected to the outer wall of the pump shaft (3), and one end of the shaft sleeve (6) extends into the stationary ring seat (5) and is fixedly connected to the stationary ring seat (5); An isolation sleeve (11) is fixedly connected to a side of the pump cover (2) away from the pump body (1), an inner magnetic rotor (10) is provided in the isolation sleeve (11), and one end of the pump shaft (3) extends into the isolation sleeve (11) and is fixedly connected to the inner magnetic rotor (10); A connecting frame (13) is provided on one side of the pump cover (2), the connecting frame (13) is rotatably connected to the outer magnetic rotor (12), one end of the outer magnetic rotor (12) is fixedly connected to the output shaft of the external motor, one end of the isolation sleeve (11) extends into the outer magnetic rotor (12), and the outer magnetic rotor (12) and the inner magnetic rotor (10) form an electromagnetic drive to drive the pump shaft (3) to rotate; It also includes a mechanical seal (7) which is arranged between the stationary ring seat (5) and the thrust ring assembly (8) and is sleeved on the outer wall of the shaft sleeve (6) to isolate the magnetic drive part from the pump chamber part to prevent granular medium from entering the isolation sleeve (11) and causing wear of the shaft sleeve (6) and sludge accumulation, resulting in a decrease in the magnetic force of the inner magnetic rotor (10) and heat accumulation.

2. The electromagnetic pump with vibration detection and lubricating fluid filtering functions according to claim 1, characterized in that: It also includes a base (14) and a mounting plate (15), wherein the mounting plate (15) is slidably connected to the base (14), and the pump body (1) and the pump cover (2) are fixedly connected to the top of the mounting plate (15); A detection structure comprising a plurality of fixed columns (16) fixedly connected to the inner wall of the bottom of the base (14) and a plurality of sliding rods (17) fixedly connected to the bottom of the mounting plate (15), for detecting the vibration frequency and amplitude of the pump body (1) and the pump cover (2) when the pump shaft (3) rotates; A liquid injection box (22) is fixedly connected to the inner wall of the bottom of the base (14), and a connecting pipe (25) is provided on one side of the liquid injection box (22) for injecting cooling lubricating liquid. The top of the liquid injection box (22) is fixedly connected to the liquid injection pipe (23), and the top end of the liquid injection pipe (23) passes through the mounting plate (15) and is connected to the cooling lubricating liquid inlet valve on the pump cover (2); The filtering structure comprises a fixed ring (24) fixedly connected to the outer wall of the liquid injection box (22) and a rotating ring (26) slidably connected to the inner wall of the fixed ring (24), and is used to filter the cooling lubricating liquid injected into the pump cover (2); The bottom end of the sliding rod (17) slides and extends into the fixed column (16) and cooperates with the pressure sensor (21) in the fixed column (16). When the mounting plate (15) vibrates, the sliding rod (17) squeezes the pressure sensor (21) to detect the vibration frequency and amplitude.

3. The electromagnetic pump with vibration detection and lubricating fluid filtering functions according to claim 2, characterized in that: The isolation sleeve (11) is a gradient functional isolation sleeve, the inner layer of which is a 0.3 mm thick high-purity alumina ceramic with a resistivity of >10 14 Ω·cm, the middle layer is a 0.1mm copper mesh thermal conductive layer, and the outer layer is a 0.2mm carbon fiber reinforced polymer. The three layers are integrated by spark plasma sintering to achieve a gradient distribution of electrical insulation, thermal conductivity and mechanical strength.

4. The electromagnetic pump with vibration detection and lubricating fluid filtering functions according to claim 3, characterized in that: The detection structure also includes a sliding plate (20) slidably connected to the fixed column (16), a spring (19) is provided between the bottom of the sliding plate (20) and the bottom inner wall of the fixed column (16), the wire diameter of the spring (19) is 1.0-2.0 mm, the outer diameter is 12-18 mm, and the free height is 40-60 mm, the top inner wall of the sliding plate (20) is fixedly embedded with a pressure sensor (21), and the bottom end of the sliding rod (17) cooperates with the pressure sensor (21) to detect the frequency and amplitude of pressure value changes when the mounting plate (15) vibrates.

5. The electromagnetic pump with vibration detection and lubricating fluid filtering functions according to claim 4, characterized in that: The filtering structure further includes a liquid inlet (46) provided on one side of the liquid injection box (22); one end of the connecting pipe (25) extends to the fixed ring (24) and corresponds to the position of the liquid inlet (46); a plurality of filter screens (27) are fixed in the rotating ring (26); two isolation plates (40) are fixed in the fixed ring (24); a liquid injection bin (41) and a cleaning bin (42) are formed by the fixed ring (24), the rotating ring (26) and the isolation plates (40); the connecting pipe (25) extends into the liquid injection bin (41) to limit the flow position of the cooling lubricating liquid and filter the particulate medium through the filter screen (27).

6. The electromagnetic pump with vibration detection and lubricating fluid filtering functions according to claim 5, characterized in that: An annular groove (36) is provided on the inner wall of the fixed ring (24); an inner gear ring (37) is fixed on the inner wall of the rotating ring (26), and the inner gear ring (37) extends into the annular groove (36); a second gear (38) is rotatably connected to the liquid injection box (22); one side of the second gear (38) extends into the annular groove (36) and meshes with the inner gear ring (37), and is used to drive the rotating ring (26) to rotate to replace the filter (27).

7. The electromagnetic pump with vibration detection and lubricating fluid filtering functions according to claim 6, characterized in that: Also included is a self-cleaning unit, the self-cleaning unit comprising: A protective tube (31) is fixedly connected to an inner wall of one side of the liquid injection box (22); A rotating tube (32) is rotatably connected to the protective tube (31), one end of the rotating tube (32) is fixedly connected to a rotating disk (33), the rotating disk (33) is located in the fixed ring (24), and a plurality of air outlet holes are provided on one side of the rotating disk (33); An annular airbag (28) is fixedly connected to the top of the liquid injection box (22), the top of the annular airbag (28) is fixedly connected to the bottom of the mounting plate (15), the bottom of the annular airbag (28) is fixedly connected to the air injection pipe (30), one end of the air injection pipe (30) extends into the protective cylinder (31) and is rotatably connected to the rotating pipe (32); The air inlet (29) and the air injection pipe (30) are both provided with one-way valves for injecting air into the rotating disk (33) when the mounting plate (15) vibrates, so as to eject air through the air outlet to remove the medium adsorbed on the filter (27).

8. The electromagnetic pump with vibration detection and lubricating fluid filtering functions according to claim 7, characterized in that: The outer wall of the rotating tube (32) is fixedly sleeved with a first gear (34), and the bottom of the mounting plate (15) is fixedly connected to a rack (35). The bottom end of the rack (35) is sealed and penetrates the top inner wall of the liquid injection box (22) and extends into the protective tube (31) in a sealed sliding manner. The rack (35) is engaged with the first gear (34) and is used to drive the rotating tube (32) to rotate back and forth to achieve all-round air blowing cleaning.

9. The electromagnetic pump with vibration detection and lubricating fluid filtering functions according to claim 8, characterized in that: The invention also includes a buffering and vibration reduction device, which includes a plurality of L-shaped plates (43) fixedly connected to the top of the base (14), a bottom of one side of each L-shaped plate (43) fixedly connected to a cylinder (44), a piston rod (45) sealed and slidably connected in the cylinder (44), and a bottom end of the piston rod (45) fixedly connected to the top of the mounting plate (15), and an inert gas stored in the cylinder (44) for compressing the inert gas when the mounting plate (15) vibrates to buffer the vibration and reduce noise.

10. A method for using an electromagnetic pump with vibration detection and lubricating fluid filtering functions, applied to the electromagnetic pump with vibration detection and lubricating fluid filtering functions according to claim 9, characterized in that: The following steps are involved: S1. The outer magnetic rotor (12) is driven to rotate by a motor, and the outer magnetic rotor (12) cooperates with the inner magnetic rotor (10) to form a magnetic drive, thereby driving the inner magnetic rotor (10) and the pump shaft (3) to rotate, and the pump shaft (3) drives the pump cover (2) to rotate, thereby operating the electromagnetic pump. The mechanical seal (7) provided on the outer wall of the shaft sleeve (6) can isolate the magnetic drive part from the pump chamber part, and can prevent the wear of the pump shaft (3) caused by the granular medium in the liquid from entering the isolation sleeve (11) during the operation of the electromagnetic pump, and prevent the problem of magnetic force reduction and heat accumulation of the inner magnetic rotor (10) caused by silt accumulation, thereby extending the service life. In addition, the isolation sleeve (11) adopts the PLAN53A flushing solution to provide cooling for the mechanical seal and the inner magnetic rotor (10), so as to ensure that the mechanical seal and the inner magnetic rotor (10) will not overheat and reduce the service life. S2. When the electromagnetic pump is running, the entire electromagnetic pump vibrates, driving the mounting plate (15) to vibrate up and down. The mounting plate (15) drives the sliding rod (17) to vibrate. The sliding rod (17) squeezes the pressure sensor (21). The pressure sensor (21) can detect the pressure signal received thereon. The frequency of the electromagnetic pump vibration can be detected according to the frequency of the pressure change. The amplitude of the electromagnetic pump vibration can be detected according to the change of the pressure value. The wear inside the electromagnetic pump is analyzed. When the vibration amplitude and frequency reach the threshold value, the electromagnetic pump needs to be shut down and its internal maintenance is carried out. S3. When the electromagnetic pump drives the mounting plate (15) to vibrate, the mounting plate (15) drives the piston rod (45) to vibrate up and down, compressing the inert gas in the cylinder (44), thereby converting the kinetic energy of the vibration of the mounting plate (15) into the potential energy of air compression, thereby playing a buffering role, that is, avoiding damage to internal components caused by the vibration of the electromagnetic pump and reducing the noise generated by the vibration; S4. When the electromagnetic pump is running, it is necessary to inject cooling lubricant into the gap between the isolation sleeve (11) and the inner magnetic rotor (10) to lubricate and cool the inner magnetic rotor (10). The cooling lubricant is injected into the inner magnetic rotor (10) in the electromagnetic pump through the connection pipe (25), the injection box (22) and the injection pipe (23) to lubricate and cool the inner magnetic rotor (10). During the injection process, it is necessary to filter the particulate medium in the cooling lubricant to avoid wear inside the electromagnetic pump. Specifically, when the lubricant passes through the connection pipe ( 25) is injected into the liquid injection bin (41) and filtered by the filter screen (27) before being injected into the liquid injection box (22). When the filter screen (27) is used for a long time and the filtered medium needs to be removed, the second gear (38) is driven to rotate by the motor. The second gear (38) cooperates with the inner gear ring (37) to drive the rotating ring (26) to rotate. The rotating ring (26) rotates the used filter screen (27) from the liquid injection bin (41) to the cleaning bin (42), thereby replacing the new filter screen (27) for filtering. S5. When the rotating ring (26) rotates, the previously used filter (27) just moves to the position of the rotating disk (33), and the air ejected by the rotating disk (33) clears the filter medium on the filter (27); specifically, the vibration generated when the electromagnetic pump is running drives the mounting plate (15) to move up and down, and the mounting plate (15) can inject gas into the rotating disk (33) through the air injection pipe (30) and the one-way valve in the air inlet hole (29) during the vibration process, and the mounting plate (15) drives the rotating disk (33) to rotate back and forth through the cooperation of the rack (35) and the first gear (34), thereby being able to blow air to clean the filter (27) in all directions, which is convenient for later use.

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