Impurity removal device for lubricating oil production

Abstract

The invention discloses an impurity removal device for lubricating oil production, and relates to the technical field of lubricating oil impurity removal equipment.The impurity removal device comprises an auxiliary separation bin, the bottom end of the auxiliary separation bin is fixedly provided with a bin bottom in a sealed mode through bolts, and the side face of the bottom of the bin bottom fixedly communicates with an oil conveying pipeline; a connecting pipeline is fixedly installed at the top of the auxiliary separation bin in a sealed mode through bolts, a main separation bin is fixedly installed at the top of the connecting pipeline in a sealed mode through bolts, a bin cover is fixedly installed at the top of the main separation bin in a sealed mode through bolts, and a separation screen is detachably and fixedly installed on the inner wall of the connecting pipeline. Impurity removal operation is conducted on lubricating oil through a plurality of auger filter screens, so that the lubricating oil is filtered for multiple times, impurities contained in the lubricating oil are thoroughly separated, the situation that follow-up use is affected by tiny impurities contained in the treated lubricating oil is avoided, and different effects can be achieved when the auger filter screens rotate clockwise and anticlockwise; the impurity removal operation on the lubricating oil is facilitated.

Description

Technical Field

[0001] This invention relates to the technical field of lubricating oil impurity removal equipment, specifically to an impurity removal device for lubricating oil production. Background Technology

[0002] Lubricating oil is a liquid or semi-solid lubricant used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and processed parts. Its main functions include lubrication, auxiliary cooling, rust prevention, cleaning, sealing and buffering.

[0003] An existing authorized patent with publication number CN119345786A discloses a graded impurity removal device for lubricating oil processing. This device comprises a feeding and discharging mechanism, including a feeding end cover and a discharging end cover; multiple impurity removal mechanisms, each installed between the feeding and discharging end covers and configured to convey material from the feeding end cover to the discharging end cover; each impurity removal mechanism includes an impurity removal cylinder, a auger filter, and a spiral channel. The auger filter is installed inside the impurity removal cylinder and forms a relatively independent spiral channel with the cylinder. The aperture of the multiple auger filters varies along the material conveying direction. The process involves a gradual decrease in pore size. This effectively increases the contact area between the filter screen and the lubricating oil within a limited space, significantly increasing the filterable area and thus improving impurity removal efficiency. Furthermore, as the lubricating oil flows within the spiral channel, it passes through the auger filter multiple times, allowing for multiple filtrations. Compared to flat-plate filters, this results in better impurity removal, improving the purity of the lubricating oil and enhancing its performance. In addition, the use of multiple auger filters with different pore sizes allows for the separation of impurities of varying particle sizes from the lubricating oil, further enhancing the device's impurity removal efficiency.

[0004] However, in the actual use of the above-mentioned device, the impurities in the lubricating oil are filtered multiple times by the feeding and discharging mechanism and the impurity removal mechanism. However, after the lubricating oil is filtered by the auger filter, the impurities filtered by the auger filter will still remain on the surface of the auger filter. The problem mentioned in the background technology of the above-mentioned device, "as the number of impurities filtered by the filter increases, the mesh of the filter gradually becomes blocked, resulting in a gradual reduction in the filterable area of ​​the filter, which easily leads to a decrease in the impurity removal efficiency of the impurity removal device", has not been actually solved.

[0005] To address this issue, we propose a purification device for lubricant production. Summary of the Invention

[0006] Technical problems to be solved

[0007] In view of this, and in view of the shortcomings of the prior art, the present invention provides a purification device for lubricating oil production to solve the problems mentioned in the background art.

[0008] Technical solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: a purification device for lubricating oil production, comprising a secondary separation chamber, a chamber bottom fixedly installed at the bottom end of the secondary separation chamber by bolts, an oil conveying pipe fixedly connected to the bottom side of the chamber bottom, a bracket fixedly installed on the outer surface of the secondary separation chamber, a connecting pipe fixedly installed at the top of the secondary separation chamber by bolts, a main separation chamber fixedly installed at the top of the connecting pipe by bolts, a chamber cover fixedly installed at the top of the main separation chamber by bolts, a separation screen detachably fixedly installed on the inner wall of the connecting pipe, and further comprising grading separation components respectively disposed inside the main separation chamber;

[0010] The grading and separation assembly includes a drive motor mounted above the bin cover. A drive wheel is fixedly connected to the output shaft at the bottom of the drive motor. A driven shaft is rotatably connected to the center of the inner wall of the bin bottom. A driven sleeve is slidably connected to the outer surface of the driven shaft. Buffer springs are fixedly connected to the outer surfaces of both the upper and lower ends of the driven sleeve. Screw filter screens are fixedly connected at equal intervals to the outer surfaces of both the upper and lower ends of the driven sleeve. Limiting sleeves are rotatably connected at equal intervals to the inner walls of both the secondary and main separation bins. Cylindrical rods are fixedly connected to the inner surfaces of the limiting sleeves. A steel truss is fixedly connected to the bottom surface of each screw filter screen. A connecting plate is fixedly connected below each screw filter screen. Filter boxes are fixedly installed on the outer surface of the connecting plate by bolts.

[0011] Preferably, the top end of the driven shaft extends into the compartment cover, and the top end of the driven shaft is provided with a mounting groove. The bottom end of the driving wheel is fixedly inserted into the driven shaft through the mounting groove. The buffer spring located above the driven sleeve has its end away from the driven sleeve in contact with the bottom surface of the driving wheel, and the buffer spring located below the driven sleeve has its end away from the driven sleeve in contact with the inner wall of the compartment bottom. Both buffer springs are sleeved on the outside of the driven shaft.

[0012] Preferably, the auger filter is provided in two sets, which are respectively located inside the secondary separation chamber and the main separation chamber. Each set of auger filters has multiple auger filters arranged at equal intervals along the vertical direction of the outer surface of the driven sleeve. The number of limiting sleeves matches the number of auger filters. The limiting sleeves are all located on the outer surface of the auger filters and the inner surface of the limiting sleeves is in contact with the outer wall of the auger filters.

[0013] Preferably, multiple cylindrical rods are provided inside each limiting sleeve, and the multiple cylindrical rods are all arranged along the curved surface of the auger filter and attached to the outer surface of the auger filter. The end of the cylindrical rod away from the limiting sleeve abuts against the outer surface of the driven sleeve.

[0014] Preferably, the steel truss, connecting plate and filter box are provided in two sets, and are respectively set inside the secondary separation chamber and the main separation chamber. Among the two sets of connecting plates arranged vertically along the outer surface of the driven sleeve, except for the connecting plate at the bottom, the other connecting plates are fixedly connected between two adjacent auger filters, connecting the bottom and top of the two adjacent auger filters.

[0015] Preferably, the bottom center of the separating screen is slidably connected to the outer surface of the driven sleeve, and the separating screen is located between the two sets of auger filters.

[0016] Preferably, it also includes a snap-fit ​​assembly disposed outside the limiting sleeve;

[0017] The snap-fit ​​assembly includes wedge-shaped teeth that are fixedly installed at equal intervals on the outer surface of the limiting sleeve. Limiting grooves are opened at equal intervals on the inner walls of the secondary separation chamber and the main separation chamber. The inner walls of the limiting grooves are connected to snap-fit ​​blocks in a circumferential array with reference to the center of the driven sleeve. Limiting springs are fixedly installed on the side walls of the snap-fit ​​blocks.

[0018] Preferably, the horizontal cross-section of the wedge-shaped tooth is set as an acute triangle, the locking block is locked with the wedge-shaped tooth, and the horizontal cross-section of the locking block is set as an acute triangle that fits with the wedge-shaped tooth. The locking block is set to rotate only in one direction, and the end of the limiting spring away from the locking block is fixedly connected to the wall of the limiting groove.

[0019] Preferably, it also includes a transfer component disposed on the compartment cover;

[0020] The transmission assembly includes a positioning ring rotatably connected to the center of the top of the compartment cover. An oil inlet pipe is fixedly installed inside the positioning ring. A circular positioning plate is rotatably connected inside the positioning ring. A driven gear ring is detachably fixedly installed on the outer surface of the end of the oil inlet pipe away from the positioning ring. A planetary gear meshes inside the driven gear ring.

[0021] Preferably, the drive motor is fixedly installed at the center of the circular positioning plate, and the bottom output shaft of the drive motor passes through and extends to the bottom of the positioning ring. The oil inlet pipe is arranged symmetrically along the central axis of the positioning ring. The planetary gear is arranged symmetrically along the central axis of the positioning ring. The outer surface of the drive wheel is fixedly connected with teeth at equal intervals. The drive wheel meshes with the planetary gear through the teeth. A round rod is fixedly connected at the center of the planetary gear, and the top of the round rod extends to the bottom surface of the circular positioning plate and is rotatably connected to the circular positioning plate.

[0022] Beneficial effects

[0023] Compared with the prior art, the present invention provides a purification device for lubricating oil production, which has the following beneficial effects:

[0024] The lubricating oil is filtered multiple times through a series of auger filters to remove impurities, thus completely separating the impurities and preventing the remaining oil from containing tiny impurities that could affect its subsequent use. The auger filters produce different effects when rotated clockwise and counterclockwise, which is beneficial for removing impurities from the lubricating oil.

[0025] When the auger filter rotates clockwise under the clockwise rotation of the drive motor, the cylindrical rod comes into contact with the surface of the auger filter, which reduces the flow velocity of the lubricating oil as it flows along the curved surface of the auger filter. The reduced flow velocity prolongs the residence time of the lubricating oil on the filter surface, giving tiny particles a greater chance to be intercepted and captured. At a lower flow velocity, a more stable laminar flow state is formed, reducing the risk of resuspension of deposited impurities caused by turbulent disturbances.

[0026] When the auger filter rotates counterclockwise under the counterclockwise action of the drive motor, the cylindrical rod forces the auger filter to move vertically downwards. At the same time, the cylindrical rod moves along the surface of the auger filter, scraping away the impurities left on the surface of the auger filter. As a rigid scraper, the cylindrical rod continuously applies positive pressure to the surface of the auger filter during relative motion, which can effectively break the adhesion of the filter cake layer. In addition, since the auger filter rotates circumferentially and translates axially at the same time, it forms a composite motion trajectory similar to an Archimedean spiral. The equally spaced cylindrical rods can ensure that the entire filtration area is periodically covered and cleaned, reducing cleaning dead corners.

[0027] When the auger filter screen switches between clockwise and counterclockwise rotation, it vibrates under the action of the buffer spring. This vibration, combined with the cylindrical rod, causes the scraped impurities to enter the filter box along the spiral trajectory on the surface of the auger filter screen, thus completing the collection of impurities. This prevents impurities from remaining on the surface of the auger filter screen and ensures that separated impurities do not become mixed back, affecting the lubricating oil removal operation. At the same time, the vibration loosens and removes the filter cake layer, making it easier to clean. Furthermore, the vibration changes the flow state of the lubricating oil on the surface of the auger filter screen. The local turbulence caused by the vibration improves the flow performance of the lubricating oil and prevents the lubricating oil from remaining on the surface of the auger filter screen for a long time.

[0028] By setting the driven gear ring, planetary gear and driving gear, the position of the lubricating oil falling on the surface of the auger filter screen through the oil inlet pipe is constantly changing, preventing the auger filter screen from failing prematurely due to continuous impact on a fixed single point. Moreover, the dynamic landing point makes the impurity deposition present a radial diffusion pattern rather than a ring-shaped concentrated zone, further avoiding the blockage caused by the accumulation of impurities in the auger filter screen.

[0029] When the auger filter rotates in the forward direction, the oil inlet pipe rotates in the reverse direction, thus ensuring that the lubricating oil is always in contact with different positions on the surface of the auger filter within one rotation cycle of the oil inlet pipe. This allows the oil particles to cover the entire filter surface of the auger filter along the spiral trajectory, thereby extending the effective filtration distance per pass and helping to complete the impurity removal operation of the lubricating oil. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the bin cover of the present invention;

[0032] Figure 3 This is a schematic diagram of the internal structure of the main separation chamber of the present invention;

[0033] Figure 4 This is a schematic diagram of the overall internal cross-sectional structure of the present invention;

[0034] Figure 5 This is a schematic diagram of the internal cross-sectional structure of the secondary separation chamber of the present invention;

[0035] Figure 6 This is a schematic diagram of the connection relationship at the auger filter screen of the present invention;

[0036] Figure 7 This is a schematic diagram of the internal structure of the secondary separation chamber of the present invention;

[0037] Figure 8 This is a schematic diagram of the connection relationship at the active rotor of the present invention;

[0038] Figure 9 This is a schematic diagram of the connection relationship at the separation screen of the present invention;

[0039] Figure 10 For the present invention Figure 9 Enlarged schematic diagram of the structure at point A in the middle;

[0040] Figure 11 This is a schematic diagram of the connection relationship at the filter box of the present invention;

[0041] Figure 12 For the present invention Figure 11 Enlarged schematic diagram of the structure at point B.

[0042] In the diagram: 11. Secondary separation chamber; 12. Chamber bottom; 13. Oil pipeline; 14. Support frame; 15. Connecting pipeline; 16. Main separation chamber; 17. Chamber cover; 18. Separation screen;

[0043] 21. Drive motor; 22. Driving wheel; 23. Driven shaft; 24. Driven sleeve; 25. Buffer spring; 26. Screw filter screen; 27. Limiting sleeve; 28. Cylindrical rod; 2901. Steel truss; 2902. Connecting plate; 2903. Filter box;

[0044] 31. Wedge-shaped teeth; 32. Limiting groove; 33. Snap-fit ​​block; 34. Limiting spring;

[0045] 41. Locating ring; 42. Oil inlet pipe; 43. Circular locating plate; 44. Driven gear ring; 45. Planetary gear. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] Embodiments of the present invention

[0048] Please see Figures 1 to 12 A purification device for lubricating oil production includes a secondary separation chamber 11, a chamber bottom 12 fixedly installed at the bottom end of the secondary separation chamber 11 by bolt sealing, an oil conveying pipe 13 fixedly connected to the bottom side of the chamber bottom 12, a bracket 14 fixedly installed on the outer surface of the secondary separation chamber 11, a connecting pipe 15 fixedly installed at the top of the secondary separation chamber 11 by bolt sealing, a main separation chamber 16 fixedly installed at the top of the connecting pipe 15 by bolt sealing, a chamber cover 17 fixedly installed at the top of the main separation chamber 16 by bolt sealing, a separation screen 18 detachably fixedly installed on the inner wall of the connecting pipe 15, and a grading separation component respectively disposed inside the main separation chamber 16;

[0049] The grading and separation assembly includes a drive motor 21 mounted above the bin cover 17. A drive wheel 22 is fixedly connected to the bottom output shaft of the drive motor 21. A driven shaft 23 is rotatably connected to the center of the inner wall of the bin bottom 12. A driven sleeve 24 is slidably connected to the outer surface of the driven shaft 23. Buffer springs 25 are fixedly connected to the outer surfaces of both the upper and lower ends of the driven sleeve 24. Screw filter screens 26 are fixedly connected at equal intervals to the outer surfaces of both the upper and lower ends of the driven sleeve 24. Limiting sleeves 27 are rotatably connected at equal intervals to the inner walls of the secondary separation bin 11 and the main separation bin 16. Cylindrical rods 28 are fixedly connected to the inner surfaces of the limiting sleeves 27. A steel truss 2901 is fixedly connected to the bottom surface of each screw filter screen 26. A connecting plate 2902 is fixedly connected below each screw filter screen 26. Filter boxes 2903 are fixedly installed on the outer surface of the connecting plate 2902 by bolts.

[0050] The driven shaft 23 extends to the inside of the bin cover 17, and a mounting groove is provided at the top of the driven shaft 23. The bottom end of the driving wheel 22 is fixedly inserted into the driven shaft 23 through the mounting groove. The buffer spring 25 located above the driven sleeve 24 has one end away from the driven sleeve 24 in contact with the bottom surface of the driving wheel 22. The buffer spring 25 located below the driven sleeve 24 has one end away from the driven sleeve 24 in contact with the inner wall of the bin bottom 12. Both buffer springs 25 are sleeved on the outside of the driven shaft 23.

[0051] The auger filter 26 is provided in two sets, which are respectively located inside the secondary separation chamber 11 and the main separation chamber 16. Each set of auger filter 26 has multiple equidistant auger filters arranged along the vertical direction of the outer surface of the driven sleeve 24. The number of limiting sleeves 27 matches the number of auger filter 26. The limiting sleeves 27 are all located on the outer surface of the auger filter 26 and the inner surface of the limiting sleeves 27 is in contact with the outer wall of the auger filter 26.

[0052] Among them, there are multiple cylindrical rods 28 inside each limiting sleeve 27, and the multiple cylindrical rods 28 are all set along the curved surface of the auger filter 26 and are attached to the outer surface of the auger filter 26. The end of the cylindrical rod 28 away from the limiting sleeve 27 abuts against the outer surface of the driven sleeve 24.

[0053] Among them, the steel truss 2901, the connecting plate 2902 and the filter box 2903 are all provided in two sets, and are respectively located inside the secondary separation chamber 11 and the main separation chamber 16. Among the two sets of connecting plates 2902 arranged vertically along the outer surface of the driven sleeve 24, except for the connecting plate 2902 located at the bottom, the other connecting plates 2902 are fixedly connected between two adjacent auger filter screens 26, connecting the bottom end and the top end of the two adjacent auger filter screens 26.

[0054] The separation screen 18 is slidably connected to the outer surface of the driven sleeve 24 at the bottom center, and the separation screen 18 is located between the two sets of auger filters 26.

[0055] The output end of the oil pipeline 13 is fixedly installed with the input end of the lubricating oil storage device after impurity removal.

[0056] Among them, the filter holes of the multiple auger filters 26 arranged along the vertical direction gradually decrease in diameter. The auger filters 26 are arranged in a single spiral, and the length of the auger filters 26 is set to a single pitch. That is, the top and bottom of the auger filters 26 are located in the same vertical plane.

[0057] Further embodiments

[0058] Please see Figure 3 and Figures 9 to 12 The impurity removal device for lubricating oil production also includes a snap-fit ​​assembly disposed outside the limiting sleeve 27;

[0059] The snap-fit ​​assembly includes wedge-shaped teeth 31 that are fixedly installed at equal intervals on the outer surface of the limiting sleeve 27, and limiting grooves 32 that are equidistantly opened on the inner walls of the secondary separation chamber 11 and the main separation chamber 16. The inner walls of the limiting grooves 32 are all connected to snap-fit ​​blocks 33 in a circumferential array with reference to the center of the driven sleeve 24. Limiting springs 34 are fixedly installed on the side walls of the snap-fit ​​blocks 33.

[0060] The horizontal cross-section of the wedge-shaped tooth 31 is set as an acute triangle. The locking block 33 is locked with the wedge-shaped tooth 31. The horizontal cross-section of the locking block 33 is set as an acute triangle that fits with the wedge-shaped tooth 31. The locking block 33 is set to rotate only in one direction. The end of the limiting spring 34 away from the locking block 33 is fixedly connected to the wall of the limiting groove 32.

[0061] Further embodiments

[0062] Please see Figure 2 , Figure 6 and Figure 8 The impurity removal device for lubricating oil production also includes a transmission component installed on the hopper cover 17;

[0063] The transmission assembly includes a positioning ring 41 rotatably connected to the center of the top of the cover 17. An oil inlet pipe 42 is fixedly installed inside the positioning ring 41. A circular positioning plate 43 is rotatably connected inside the positioning ring 41. A driven gear ring 44 is detachably fixedly installed on the outer surface of the end of the oil inlet pipe 42 away from the positioning ring 41. A planetary gear 45 is meshed inside the driven gear ring 44.

[0064] The drive motor 21 is fixedly installed at the center of the circular positioning plate 43, and the bottom output shaft of the drive motor 21 extends through and to the bottom of the positioning ring 41. The oil inlet pipe 42 is arranged symmetrically along the central axis of the positioning ring 41. The planetary gear 45 is arranged symmetrically along the central axis of the positioning ring 41. The outer surface of the drive wheel 22 is fixedly connected with teeth at equal intervals. The drive wheel 22 meshes with the planetary gear 45 through the teeth. A round rod is fixedly connected at the center of the planetary gear 45, and the top of the round rod extends to the bottom surface of the circular positioning plate 43 and is rotatably connected to the circular positioning plate 43.

[0065] The oil inlet pipe 42 is fixedly connected to the output end of the lubricating oil storage device to be cleaned.

[0066] The overall working process and principle of the above embodiments are as follows:

[0067] When using the above-mentioned lubricating oil impurity removal device, the operator needs to fix the auxiliary separation chamber 11, the bottom of the chamber 12, the connecting pipe 15, the main separation chamber 16 and the chamber cover 17 together with bolts to form a complete impurity removal device. In addition, it should be noted that the output end of the oil delivery pipe 13 is fixedly installed with the input end of the lubricating oil storage device after impurity removal, and the oil inlet pipe 42 is fixedly connected with the output end of the lubricating oil storage device to be impurity removed.

[0068] After the impurity removal device is installed, the staff will input the lubricating oil to be removed into the device through the oil inlet pipe 42. Since the bottom of the oil inlet pipe 42 is located above the auger filter screen 26, the lubricating oil input into the device through the oil inlet pipe 42 will fall directly onto the auger filter screen 26 and be removed through the auger filter screen 26.

[0069] It should be noted that during the above process, due to the spiral curved surface of the auger filter 26, the lubricating oil will flow along the curved surface of the auger filter 26. While flowing, the lubricating oil will be cleaned of impurities. Compared with flat filter elements, the flowable lubricating oil can avoid excessive accumulation of lubricating oil on the surface of the filter element, thereby affecting the lubricating oil to complete the impurity removal operation through the filter element.

[0070] Furthermore, due to the multiple vertically arranged auger filters 26, the lubricating oil filtered by the first auger filter 26 will continue to undergo multiple filtration operations through the subsequent multiple auger filters 26, thereby completing the impurity removal operation of the lubricating oil.

[0071] It should also be noted that the pore size of the multiple auger filters 26 arranged vertically gradually decreases, thereby classifying the impurities contained in the lubricating oil and preventing the multiple auger filters 26 from becoming clogged during use.

[0072] During the above process, when the lubricating oil to be cleaned is transported into the main separation chamber 16 through the oil inlet pipe 42, the staff drives the drive motor 21 to start through the external control device. It should be noted that the output shaft of the drive motor 21 can rotate clockwise and counterclockwise under the control of the control device. At the same time, the starting and closing of the drive motor 21 and the clockwise and counterclockwise rotation of the output shaft of the drive motor 21 are existing technologies, so they will not be described in detail here.

[0073] When drive motor 21 drives the output shaft to rotate clockwise, refer to the following for details. Figure 2 as well as Figure 3The output shaft of the drive motor 21 will drive the drive wheel 22, which is fixedly connected to it, to rotate. The drive wheel 22 drives the planetary gear 45, which meshes with it, to rotate through the teeth fixedly connected to its outer surface. This drives the driven gear ring 44, which meshes with the planetary gear 45, to rotate. At this time, the oil inlet pipe 42, which is located inside the driven gear ring 44, will rotate accordingly, changing the position of the lubricating oil output from the oil inlet pipe 42 on the surface of the auger filter screen 26.

[0074] By setting the driven gear ring 44, planetary gear 45 and driving gear, the position of the lubricating oil falling on the surface of the auger filter screen 26 through the oil inlet pipe 42 is constantly changing, preventing the auger filter screen 26 from failing prematurely due to continuous impact on a fixed single point. Moreover, the dynamic landing point makes the impurity deposition present a radial diffusion pattern rather than an annular concentrated zone, further avoiding the blockage caused by the accumulation of impurities in the auger filter screen 26.

[0075] When the auger filter screen 26 rotates in the forward direction, the oil inlet pipe 42 rotates in the reverse direction, thereby ensuring that the lubricating oil is always in contact with different positions on the surface of the auger filter screen 26 within one rotation cycle of the oil inlet pipe 42. This allows the oil particles to cover the entire filter surface of the auger filter screen 26 along the spiral trajectory, thereby extending the effective filtration distance for a single pass and helping to complete the impurity removal operation of the lubricating oil.

[0076] At the same time, the driven shaft 23, which is installed by inserting into the bottom of the active rotating wheel 22 through the mounting groove, will rotate at the center of the bottom 12 of the chamber under the action of the active rotating wheel 22. At this time, the driven sleeve 24, which is slidably connected to the outer surface of the driven shaft 23, will rotate clockwise in sync, thereby driving the multiple auger filter screens 26 located on the outer surface of the driven sleeve 24 to rotate synchronously.

[0077] It should be noted that, due to the configuration of the driving wheel 22, planetary gear 45 and driven gear ring 44, when the auger filter screen 26 rotates clockwise, the oil inlet pipe 42 will rotate counterclockwise under the action of the driven gear ring 44, thereby ensuring that the position of the lubricating oil delivered by the oil inlet pipe 42 on the auger filter screen 26 changes.

[0078] When the auger filter 26 rotates clockwise, the outer surface of the auger filter 26 is rotatably connected to the limiting sleeve 27, and the inner side of the limiting sleeve 27 is fixedly installed with a cylindrical rod 28 along the curved surface of the auger filter 26. At this time, as the auger filter 26 rotates, the auger filter 26 will cause the cylindrical rod 28 to rotate synchronously through its spiral surface, thereby pushing the limiting sleeve 27 to rotate inside the main separation chamber 16 and the auxiliary separation chamber 11.

[0079] It should be noted that, in the above process, because wedge-shaped teeth 31 are fixedly connected at equal intervals on the outer surface of the limiting sleeve 27, and limiting grooves 32 are opened inside both the main separation chamber 16 and the auxiliary separation chamber 11, locking blocks 33 that engage with the wedge-shaped teeth 31 are rotatably installed on the groove wall of the limiting groove 32. At the same time, the locking blocks 33 restrict rotation to only one direction (rotation direction is as follows). Figure 12 (Referring to the connection point between the screen and the wall of the limiting groove 32 as the fulcrum, in a direction close to the wedge-shaped teeth 31), when the auger filter 26 rotates clockwise, it will simultaneously drive the limiting sleeve 27 to rotate clockwise. Specifically, the limiting sleeve 27 tends to rotate clockwise under the action of the auger filter 26 and the cylindrical rod 28, and the wedge-shaped teeth 31 fixedly installed on the outer surface of the limiting sleeve 27 will cause the locking block 33 to rotate inside the limiting groove 32, compressing the limiting spring 34 set on the outer surface of the locking block 33, so that the locking block 33 will not obstruct the rotation of the wedge-shaped teeth 31 and the limiting sleeve 27.

[0080] When the limiting sleeve 27 rotates clockwise, the cylindrical rod 28 fixedly connected inside the limiting sleeve 27 will move synchronously, so that the cylindrical rod 28 always remains in contact with the surface of the auger filter screen 26. At this time, the cylindrical rod 28 will form a blockage on the surface of the auger filter screen 26, thereby slowing down the flow rate of the lubricating oil on the surface of the auger filter screen 26, and preventing the lubricating oil from flowing too fast on the surface of the auger filter screen 26, which would prevent the thorough removal of impurities.

[0081] Subsequently, the staff used an external control device to cause the output shaft of the drive motor 21 to reverse. It should be noted that the forward and reverse rotation of the drive motor 21 can be set periodically, that is, the drive motor 21 rotates forward a certain number of times and then rotates in the reverse direction a certain number of times, and repeats this cycle. The number of times the output shaft of the drive motor 21 rotates forward is the same as the number of times it rotates in the reverse direction.

[0082] When the output shaft of the drive motor 21 rotates in the opposite direction, the output shaft of the drive motor 21 will drive the auger filter 26 to rotate in the opposite direction, that is, the auger filter 26 will rotate counterclockwise. The movement process of the auger filter 26 is the same as the above process, so it will not be described in detail here.

[0083] When the auger filter 26 rotates counterclockwise, the cylindrical rod 28 that was originally attached to the surface of the auger filter 26 will detach from the surface of the auger filter 26. As the auger filter 26 rotates, while the cylindrical rod 28 remains stationary, the auger filter 26 will come into contact with the surface of the cylindrical rod 28 that was originally attached to it. This is because the auger filter 26 is designed with a single spiral. The reverse rotation of the auger filter 26 will cause the cylindrical rod 28 that was originally attached to the curved surface to detach. The auger filter 26 can continue to rotate. However, the unchanged position of the cylindrical rod 28 and the limiting sleeve 27 will hinder the rotation of the auger filter 26, causing the auger filter 26 to come into contact with other cylindrical rods 28 and reattach to the surface of the auger filter 26.

[0084] At this time, the auger filter screen 26 will drive the limiting sleeve 27 to rotate counterclockwise through the cylindrical rod 28. The limiting sleeve 27 will drive the wedge teeth 31 to rotate counterclockwise. Since the locking block 33 is restricted to rotating only in one direction, the locking and matching of the wedge teeth 31 and the locking block 33 will restrict the counterclockwise rotation of the limiting sleeve 27, thus making it impossible for the limiting sleeve 27 and the cylindrical rod 28 to rotate counterclockwise.

[0085] However, as the auger filter 26 rotates counterclockwise and has a tendency to continue rotating, when the cylindrical rod 28 contacts the surface of the auger filter 26, since the cylindrical rod 28 remains stationary, the contact force generated between the auger filter 26 and the cylindrical rod 28 will be dispersed along the curved surface of the auger filter 26 due to the influence of the curved surface of the auger filter 26. This causes the auger filter 26 to tend to move downward under the action of the cylindrical rod 28. That is, after the auger filter 26 is obstructed, it will slide vertically downward on the outer surface of the driven shaft 23 through the driven sleeve 24, and compress the buffer spring 25 set at the bottom of the driven sleeve 24 and stretch the buffer spring 25 located at the top of the driven sleeve 24.

[0086] During the above process, the cylindrical rod 28 will remain in contact with the surface of the auger filter 26. As the auger filter 26 moves downward, the cylindrical rod 28 will generate continuous friction with the surface of the auger filter 26, thereby scraping off the impurities separated from the surface of the auger filter 26 and preventing the surface of the auger filter 26 from becoming clogged.

[0087] In addition, as the cylindrical rod 28 cleans the impurities on the surface of the auger filter screen 26, the cleaned impurities will be scraped off along the surface of the auger filter screen 26 until they enter the filter box 2903 located at the bottom of the auger filter screen 26, where the scraped impurities are collected. During this process, the lubricating oil that enters the filter box 2903 will also leak out through the filter holes opened on the filter box 2903, without affecting the impurity removal operation of the lubricating oil.

[0088] Furthermore, the length of the auger filter 26 is set to a single pitch, meaning that the top and bottom ends of the auger filter 26 are located in the same vertical plane. Therefore, the counterclockwise rotation of the auger filter 26 will not be affected by the cylindrical rod 28.

[0089] Furthermore, as the output shaft of the drive motor 21 rotates clockwise again, the driven sleeve 24, which originally moved downwards during the above process, will return to its initial state under the rebound action of the buffer spring 25 located below the driven sleeve 24, after the auger filter 26 is disengaged from the cylindrical rod 28. That is, the cylindrical rod 28 rotates clockwise with the auger filter 26 again according to the above process, thereby buffering the flow rate of the lubricating oil again.

[0090] After the lubricating oil is cleaned by multiple auger filters 26 inside the main separation chamber 16, the cleaned lubricating oil will leave the auger filter 26 at the bottom of the main separation chamber 16 and enter the separation screen 18 inside the connecting pipe 15 for filtration. After passing through the separation screen 18, it will be filtered again by multiple auger filters 26 inside the secondary separation chamber 11, thus completely completing the lubricating oil cleanup operation.

[0091] It should be noted that during the process of the drive motor 21 causing the auger filter screen 26 to remove impurities from the lubricating oil, the auger filter screen 26 will simultaneously reciprocate in the vertical direction under the combined action of the cylindrical rod 28 and the buffer spring 25, thereby vibrating the auger filter screen 26.

[0092] The lubricating oil is filtered multiple times by multiple auger filters 26 to remove impurities, thus completely separating the impurities contained in the lubricating oil and preventing the presence of tiny impurities in the lubricating oil after processing from affecting subsequent use. Furthermore, the auger filters 26 produce different effects when rotated clockwise and counterclockwise, which is beneficial for removing impurities from the lubricating oil.

[0093] When the auger filter 26 rotates clockwise under the clockwise rotation of the drive motor 21, the cylindrical rod 28 is in contact with the surface of the auger filter 26, which reduces the flow velocity of the lubricating oil as it flows along the curved surface of the auger filter 26. The reduced flow velocity prolongs the residence time of the lubricating oil on the filter surface, giving small particles a greater chance to be intercepted and captured. At a lower flow velocity, a more stable laminar flow state is formed, reducing the risk of resuspension of deposited impurities caused by turbulent disturbances.

[0094] When the auger filter 26 rotates counterclockwise under the counterclockwise action of the drive motor 21, the cylindrical rod 28 forces the auger filter 26 to move vertically downward. At the same time, the cylindrical rod 28 moves along the surface of the auger filter 26, scraping away the impurities left on the surface of the auger filter 26. As a rigid scraper, the cylindrical rod 28 continuously applies positive pressure to the surface of the auger filter 26 during relative motion, which can effectively break the adhesion of the filter cake layer. In addition, since the auger filter 26 rotates circumferentially and translates axially at the same time, it forms a composite motion trajectory similar to an Archimedean spiral. The equidistant cylindrical rods 28 can ensure that the entire filtration area is periodically covered and cleaned, reducing cleaning dead corners.

[0095] When the auger filter 26 switches between clockwise and counterclockwise rotation, it vibrates under the action of the buffer spring 25. This vibration, in conjunction with the cylindrical rod 28, causes the scraped impurities to enter the filter box 2903 along the spiral trajectory on the surface of the auger filter 26, thus completing the collection of impurities. This prevents impurities from remaining on the surface of the auger filter 26 and ensures that separated impurities do not become mixed back, affecting the lubricating oil impurity removal operation. At the same time, the vibration loosens and removes the filter cake layer, making it easier to clean. Furthermore, the vibration changes the flow state of the lubricating oil on the surface of the auger filter 26. The local turbulence caused by the vibration improves the flow performance of the lubricating oil and prevents the lubricating oil from remaining on the surface of the auger filter 26 for a long time.

[0096] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0097] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A purification device for lubricating oil production, comprising a secondary separation chamber (11), a chamber bottom (12) fixedly installed at the bottom end of the secondary separation chamber (11) by bolt sealing, an oil delivery pipe (13) fixedly connected to the bottom side of the chamber bottom (12), a bracket (14) fixedly installed on the outer surface of the secondary separation chamber (11), a connecting pipe (15) fixedly installed at the top of the secondary separation chamber (11) by bolt sealing, a main separation chamber (16) fixedly installed at the top of the connecting pipe (15) by bolt sealing, a chamber cover (17) fixedly installed at the top of the main separation chamber (16) by bolt sealing, and a separation screen (18) detachably fixedly installed on the inner wall of the connecting pipe (15), characterized in that: It also includes graded separation components respectively located inside the main separation chamber (16); The grading and separation assembly includes a drive motor (21) positioned above the bin cover (17). A drive wheel (22) is fixedly connected to the bottom output shaft of the drive motor (21). A driven shaft (23) is rotatably connected to the center of the inner wall of the bin bottom (12). A driven sleeve (24) is slidably connected to the outer surface of the driven shaft (23). Buffer springs (25) are fixedly connected to the outer surfaces of both the upper and lower ends of the driven sleeve (24). A auger is fixedly connected at equal intervals to the outer surfaces of both the upper and lower ends of the driven sleeve (24). The inner walls of the filter screen (26), the secondary separation chamber (11) and the main separation chamber (16) are all equidistantly connected with rotatable limit sleeves (27). The inner surface of the limit sleeves (27) is fixedly connected with cylindrical rods (28). The bottom surface of each auger filter screen (26) is fixedly connected with a steel truss (2901). The bottom of each auger filter screen (26) is fixedly connected with a connecting plate (2902). The outer surface of the connecting plate (2902) is fixedly installed with a filter box (2903) by bolts.

2. The impurity removal device for lubricating oil production according to claim 1, characterized in that: The driven shaft (23) extends to the top of the bin cover (17) and has an installation groove at the top. The bottom of the driving wheel (22) is fixedly inserted into the driven shaft (23) through the installation groove. The buffer spring (25) above the driven sleeve (24) is in contact with the bottom surface of the driving wheel (22) at the end away from the driven sleeve (24). The buffer spring (25) below the driven sleeve (24) is in contact with the inner wall of the bin bottom (12) at the end away from the driven sleeve (24). Both buffer springs (25) are sleeved on the outside of the driven shaft (23).

3. The impurity removal device for lubricating oil production according to claim 1, characterized in that: Two sets of auger filters (26) are provided. The two sets of auger filters (26) are respectively located inside the secondary separation chamber (11) and the main separation chamber (16). Each set of auger filters (26) has multiple auger filters (26) arranged at equal intervals along the vertical direction of the outer surface of the driven sleeve (24). The number of limiting sleeves (27) matches the number of auger filters (26). The limiting sleeves (27) are all located on the outer surface of the auger filters (26) and the inner surface of the limiting sleeves (27) is in contact with the outer wall of the auger filters (26).

4. The impurity removal device for lubricating oil production according to claim 1, characterized in that: Multiple cylindrical rods (28) are provided inside each limiting sleeve (27), and the multiple cylindrical rods (28) are all set along the curved surface of the auger filter (26) and attached to the outer surface of the auger filter (26). The end of the cylindrical rod (28) away from the limiting sleeve (27) abuts against the outer surface of the driven sleeve (24).

5. The impurity removal device for lubricating oil production according to claim 1, characterized in that: Two sets of steel truss (2901), connecting plate (2902) and filter box (2903) are provided, and are respectively located inside the secondary separation chamber (11) and the main separation chamber (16). Among the two sets of connecting plates (2902) arranged vertically along the outer surface of the driven sleeve (24), except for the connecting plate (2902) located at the bottom, the other connecting plates (2902) are fixedly connected between the two adjacent auger filters (26), connecting the bottom and top of the two adjacent auger filters (26).

6. The impurity removal device for lubricating oil production according to claim 3, characterized in that: The separation screen (18) is slidably connected to the outer surface of the driven sleeve (24) at the bottom center, and the separation screen (18) is located between the two sets of dragon filter screens (26).

7. The impurity removal device for lubricating oil production according to claim 1, characterized in that: It also includes a snap-fit ​​assembly disposed outside the limiting sleeve (27); The snap-fit ​​assembly includes wedge-shaped teeth (31) that are fixedly installed at equal intervals on the outer surface of the limiting sleeve (27), and limiting grooves (32) that are equidistantly opened on the inner walls of the secondary separation chamber (11) and the main separation chamber (16). The inner walls of the limiting grooves (32) are all connected to snap-fit ​​blocks (33) in a circular array with reference to the center of the driven sleeve (24). Limiting springs (34) are fixedly installed on the side walls of the snap-fit ​​blocks (33).

8. The impurity removal device for lubricating oil production according to claim 7, characterized in that: The horizontal cross-section of the wedge tooth (31) is set as an acute triangle. The snap-fit ​​block (33) snaps into the wedge tooth (31), and the horizontal cross-section of the snap-fit ​​block (33) is set as an acute triangle that fits into the wedge tooth (31). The snap-fit ​​block (33) is set to rotate only in one direction. The end of the limiting spring (34) away from the snap-fit ​​block (33) is fixedly connected to the wall of the limiting groove (32).

9. The impurity removal device for lubricating oil production according to claim 1, characterized in that: It also includes a transmission component mounted on the cover (17); The transmission assembly includes a positioning ring (41) rotatably connected to the center of the top of the cover (17). An oil inlet pipe (42) is fixedly installed inside the positioning ring (41). A circular positioning plate (43) is rotatably connected inside the positioning ring (41). A driven gear ring (44) is detachably fixedly installed on the outer surface of the end of the oil inlet pipe (42) away from the positioning ring (41). A planetary gear (45) meshes inside the driven gear ring (44).

10. A purification device for lubricating oil production according to claim 9, characterized in that: The drive motor (21) is fixedly installed at the center of the circular positioning plate (43), and the bottom output shaft of the drive motor (21) passes through and extends to the bottom of the positioning ring (41). The oil inlet pipe (42) is symmetrically arranged along the central axis of the positioning ring (41). The planetary gear (45) is symmetrically arranged along the central axis of the positioning ring (41). The outer surface of the drive wheel (22) is fixedly connected with teeth at equal intervals. The drive wheel (22) meshes with the planetary gear (45) through the teeth. A round rod is fixedly connected at the center of the planetary gear (45), and the top of the round rod extends to the bottom surface of the circular positioning plate (43) and is rotatably connected to the circular positioning plate (43).

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