Filtering assembly and lubricating grease stirring device

Abstract

The invention relates to the technical field of pretreatment of materials to be mixed, in particular to a filtering assembly and a lubricating grease stirring device, the filtering assembly is provided with a centrifugal filtering barrel, a cleaning scraper, a first driving part, a first transmission part and a second transmission part; the input end of the first transmission part is connected with the output end of the first driving part, and the output end is connected with the centrifugal filtering barrel; the input end of the second transmission part is connected with the output end of the first driving part, and the output end is connected with the cleaning scraper; the cleaning scraping plate extends in the depth direction of the centrifugal filtering barrel and is attached to the inner wall of the centrifugal filtering barrel; and the rotating direction of the cleaning scraper is opposite to that of the centrifugal filtering barrel. The cleaning scraping plate and the centrifugal filtering barrel rotate reversely through the second transmission part, and the relative speed between the scraping plate and the barrel wall is increased due to the reverse movement, so that the shearing and stripping effects on the adhered impurities are enhanced. According to the design, a filter cake layer can be more thoroughly removed through a synergistic mechanism of centrifugal separation and reverse scraping, and the filtering efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pretreatment of materials to be mixed, and in particular to a filter assembly and a grease stirring device. Background Art

[0002] Grease is a semi-solid lubricating material prepared by processes such as mixing, saponification reaction, and homogenization of base oil, thickening agent, and functional additives. Among them, the base oil, as the main component of grease (usually accounting for 70%-95%), its cleanliness directly affects the lubricating performance and service life of the finished product. During the grease manufacturing process, the base oil needs to be strictly filtered before mixing to remove contaminants such as oxidized colloid, mechanical impurities (such as metal chips, dust), and trace moisture. If the impurities are not effectively intercepted, it will not only hinder the subsequent uniform mixing with the thickening agent and the progress of the saponification reaction, but also lead to problems such as increased mechanical wear and decreased oxidation stability of the finished grease.

[0003] However, the existing pretreatment filtration process for base oil faces the core technical problem of easy clogging of the filter mesh, which is specifically manifested as follows: Flow resistance caused by high viscosity: The base oil (especially high-viscosity mineral oil, synthetic oil such as PAO or ester oil) has poor fluidity at normal or low temperatures, and impurity particles are easily adhered to the filter mesh fibers, quickly forming a dense filter cake layer, significantly reducing the filtration efficiency; Complexity of impurity components: The oxidized colloid in the base oil has viscoelasticity, and after mixing with hard particles such as metal chips, it is easy to form a composite blockage on the filter mesh surface, and conventional backwashing or mechanical scraping is difficult to completely remove; Limitation of thermal sensitivity: In order to reduce the viscosity, the existing technology often heats the base oil to improve its fluidity, but excessive heating (especially for synthetic oils with poor thermal oxidation stability) may cause oil deterioration and generate secondary pollutants; Bottleneck of continuous production: Frequent shutdowns for cleaning or replacing the filter mesh caused by blockage seriously restrict the continuity of large-scale production and increase the operation and maintenance costs.

[0004] The current industry's improvement measures for base oil filtration mainly include using multi-layer gradient filter meshes, integrating heating modules, or applying pulse backwashing to remove blockages. However, these solutions still have significant defects: Although multi-layer filter meshes can intercept impurities of different particle sizes in stages, their structures are complex and the blockage removal operations are cumbersome; When the heating temperature control accuracy is insufficient, it is easy to cause thermal damage to the oil; And the pulse backwashing has limited effect on removing viscoelastic colloid blockages.

[0005] Therefore, there is an urgent need for a base oil pretreatment filtration technology that takes into account filtration efficiency, oil protection, and operation and maintenance convenience to fundamentally break through the technical bottleneck of the cleaning treatment of grease raw materials. Summary of the Invention

[0006] The present invention provides a filtering component and a grease stirring device, which are used to solve the technical problem that when filtering the base oil of lubricating oil in the prior art, the filter screen is easily blocked, affecting the filtering efficiency.

[0007] A filtering component provided in the first aspect of the present invention includes: A centrifugal filtering barrel, a cleaning scraper, a first driving member, a first transmission member, and a second transmission member; The input end of the first transmission member is connected to the output end of the first driving member, and the output end is connected to the centrifugal filtering barrel; The input end of the second transmission member is connected to the output end of the first driving member, and the output end is connected to the cleaning scraper; The cleaning scraper extends along the depth direction of the centrifugal filtering barrel and fits the inner wall of the centrifugal filtering barrel; The rotation direction of the cleaning scraper is opposite to the rotation direction of the centrifugal filtering barrel.

[0008] In the filtering component of the first possible implementation of the first aspect, a driving bevel gear is connected to the output end of the first driving member; The first transmission member includes a rotating bevel gear and a rotating rod; The rotating bevel gear meshes with the driving bevel gear and is fixedly connected to the input end of the rotating rod; The output end of the rotating rod is connected to the centrifugal filtering barrel; The second transmission member includes a driven bevel gear, a driven rod, and a connecting link plate; The driven rod is rotatably sleeved outside the rotating rod; The driven bevel gear meshes with the driving bevel gear and is fixedly connected to the input end of the driven rod; The output end of the driven rod is fixedly connected to the connecting link plate; The connecting link plate is connected to the cleaning scraper.

[0009] Combined with the filtering component of the first possible implementation of the first aspect, in the filtering component of the second possible implementation of the first aspect, it further includes: A cleaning brush and a third transmission member; The cleaning brush extends along the depth direction of the centrifugal filtering barrel and fits the inner wall of the centrifugal filtering barrel; The input end of the third transmission member is connected to the output end of the first driving member, and the output end is connected to the cleaning brush to drive the cleaning brush to reciprocate along the depth direction of the centrifugal filtering barrel.

[0010] Combined with the filtering component of the second possible implementation of the first aspect, in the filtering component of the third possible implementation of the first aspect, the third transmission member includes a fixed bevel gear, a connecting bevel gear, a connecting rod, and a rotating crank; The fixed bevel gear is fixedly sleeved outside the driven rod; The input end of the connecting bevel gear meshes with the fixed bevel gear, and the output end is connected to the input end of the connecting rod; The input end of the rotating crank is connected to the output end of the connecting rod, and the output end is connected to the cleaning brush; The second transmission member further includes a fixed frame; One end of the fixed frame is connected to the connecting link plate, and the other end is connected to the cleaning scraper; The connecting rod passes through the fixed frame.

[0011] Combined with the third possible implementation of the filter assembly in the first aspect, in the fourth possible implementation of the filter assembly in the first aspect, the third transmission member further includes a connecting pull rod, a moving rod, a limiting slider and a limiting link plate; The input end of the connecting pull rod is rotatably connected to the rotating crank, and the output end is rotatably connected to the moving rod; The limiting link plate is fixedly connected to the fixed frame and is provided with a chute extending along the depth direction of the centrifugal filter barrel; The limiting slider is arranged in the chute and is fixedly connected to the end of the moving rod; The cleaning brush is fixedly connected to the limiting slider.

[0012] Combined with a filter assembly provided in the first aspect, the first possible implementation of the filter assembly in the first aspect, the second possible implementation of the filter assembly in the first aspect, the third possible implementation of the filter assembly in the first aspect, or the fourth possible implementation of the filter assembly in the first aspect, in the fifth possible implementation of the filter assembly in the first aspect, the cleaning scraper is a hollow shuttle-shaped structure.

[0013] Combined with a filter assembly provided in the first aspect, the first possible implementation of the filter assembly in the first aspect, the second possible implementation of the filter assembly in the first aspect, the third possible implementation of the filter assembly in the first aspect, or the fourth possible implementation of the filter assembly in the first aspect, in the sixth possible implementation of the filter assembly in the first aspect, it further includes: Filter tank; The centrifugal filter barrel is arranged in the filter tank and is rotatably connected to the filter tank; The bottom of the filter tank is provided with a filter residue discharge pipe.

[0014] A grease stirring device provided in the second aspect of the present invention includes: A stirring tank, a connecting conduit and any one of the possible implementations of the filter assembly provided in the first aspect; The input end of the connecting conduit is communicated with the output end of the filter assembly, and the output end is communicated with the input of the stirring tank.

[0015] In the first possible implementation of the grease stirring device in the second aspect, it further includes: A lifting and stirring assembly disposed in the stirring tank; The lifting and stirring assembly includes a second driving member, a stirring blade, a third transmission member, and a fourth transmission member; The stirring blade is adapted to the stirring space of the stirring tank; The input end of the third transmission member is connected to the output end of the second driving member, and the output end is connected to the stirring blade to drive the stirring blade to rotate; The input end of the fourth transmission member is connected to the output end of the second driving member, and the output end is connected to the stirring blade to drive the stirring blade to lift.

[0016] Combined with the first possible implementation of the grease stirring device in the second aspect, in the second possible implementation of the grease stirring device in the second aspect, the third transmission member includes a connecting bevel gear, a transmission bevel gear, a rotating transmission rod, a driving gear, a driven gear, and an engaging sliding sleeve; The connecting bevel gear is connected to the output end of the second driving member and meshes with the transmission bevel gear fixedly sleeved with the rotating transmission rod; The driving gear is fixedly sleeved on the rotating transmission rod and meshes with the driven gear fixedly sleeved on the engaging sliding sleeve; The fourth transmission member includes a driving helical gear, a driven helical gear, a driving connecting rod, a first connecting plate, a driving connecting shaft, a driving pull rod, an engaging connecting shaft, a second connecting plate, a rotating connecting rod, a rotating gear, a cylindrical rack, and an engaging sliding rod; The driving helical gear is fixedly sleeved on the rotating transmission rod and meshes with the driven helical gear; The input end of the driving connecting rod is fixedly connected to the driven helical gear, and the output end is rotatably connected to the input end of the driving connecting shaft through the first connecting plate; The input end of the driving pull rod is rotatably connected to the output end of the driving connecting shaft, and the output end is connected to the input end of the engaging connecting shaft; The input end of the second connecting plate is rotatably connected to the output end of the engaging connecting shaft, and the output end is connected to the rotating connecting rod; The rotating gear is fixedly sleeved on the rotating connecting rod and meshes with the cylindrical rack fixedly sleeved on the engaging sliding rod; The engaging sliding rod passes through the engaging sliding sleeve.

[0017] It can be seen from the above technical solutions that the present invention has the following advantages: The filtration component provided by the present invention is provided with a centrifugal filtration barrel, a cleaning scraper, a first driving member, a first transmission member and a second transmission member; the input end of the first transmission member is connected to the output end of the first driving member, and the output end is connected to the centrifugal filtration barrel; the input end of the second transmission member is connected to the output end of the first driving member, and the output end is connected to the cleaning scraper; the cleaning scraper extends along the depth direction of the centrifugal filtration barrel and fits against the inner wall of the centrifugal filtration barrel; the rotation direction of the cleaning scraper is opposite to the rotation direction of the centrifugal filtration barrel. The cleaning scraper rotates in the opposite direction to the centrifugal filtration barrel through the second transmission member, and the reverse movement increases the relative speed between the scraper and the barrel wall, thereby enhancing the shearing and peeling effect on the adhered impurities. Compared with unidirectional scraping or pulse backblowing, this design can more thoroughly remove the filter cake layer through the synergistic mechanism of centrifugal separation and reverse scraping, avoiding the problem of filter screen blockage caused by impurity accumulation and improving the filtration efficiency.

[0018] The cleaning scraper runs synchronously with the centrifugal filtration barrel, scraping impurities in real time during the filtration process, eliminating the need for manual cleaning or filter screen replacement during downtime, and ensuring continuous production. This feature directly solves the problem of interruption of continuous production caused by frequent blockage cleaning in the prior art, significantly improves the stability of the grease preparation process, and reduces operation and maintenance costs.

[0019] Only by means of a single driving member cooperating with two sets of transmission mechanisms, the collaborative operation of centrifugal filtration and dynamic blockage cleaning can be achieved. Compared with the complex structures of multi-layer gradient filter screens or external backblowing systems, this solution simplifies the mechanical design while ensuring high-efficiency filtration, and is more easily integrated into existing grease production equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of a filtration device provided by an embodiment of the present invention; Figure 2 It is a partial structural diagram of a filtration device provided by an embodiment of the present invention; Figure 3 It is another partial structural diagram of a filtration device provided by an embodiment of the present invention; Figure 4 It is another partial structural diagram of a filtration device provided by an embodiment of the present invention; Figure 5 It is a cross-sectional view of a filtration device provided by an embodiment of the present invention; Figure 6 Structural schematic diagram of a grease stirring device provided by an embodiment of the present invention; Figure 7 Partial cross-sectional view of a grease stirring device provided by an embodiment of the present invention; Figure 8 Partial structural schematic diagram of a grease stirring device provided by an embodiment of the present invention; Figure 9 Another partial structural schematic diagram of a grease stirring device provided by an embodiment of the present invention; Figure 10 Another partial structural schematic diagram of a grease stirring device provided by an embodiment of the present invention; Wherein: 1. Filter tank; 2. Connecting conduit; 3. Stirring tank; 4. Filter assembly; 5. Lifting and stirring assembly; 6. Filter residue discharge pipe; 7. Controller; 8. Working pump; 401. First driving member; 402. Driving rod; 403. Driving bevel gear; 404. Rotating bevel gear; 405. Driven bevel gear; 406. Rotating rod; 407. Centrifugal filter barrel; 408. Rotating connection seat; 409. Rotating roller; 410. Driven rod; 411. Connecting link plate; 412. Fixed frame; 413. Cleaning scraper; 414. Connecting rod; 415. Connecting bevel gear; 416. Fixed bevel gear; 417. Rotating crank; 418. Connecting pull rod; 419. Moving rod; 420. Limit slider; 421. Limit connecting plate; 422. Cleaning brush; 423. Limit roller; 424. Annular slide rail; 501. Fixed box body; 502. Second driving member; 503. Driving rotating rod; 504. Connecting bevel gear; 505. Transmission bevel gear; 506. Rotating rotating rod; 507. Driving gear; 508. Driving helical gear; 509. Driven gear; 510. Rotating sliding sleeve; 511. Connecting sliding rod; 512. Limit sliding sleeve; 513. Stirring blade; 514. Driven helical gear; 515. Driving connecting rod; 516. Driving coupling shaft; 517. Driving pull rod; 518. Connecting coupling shaft; 519. Rotating connecting rod; 520. Rotating gear; 521. Cylindrical rack. Detailed implementation manner

[0023] The embodiments of the present invention provide a filtering component and a grease stirring device, and the technical problem to be solved is that when filtering the base oil of lubricating oil, the filter screen is easily blocked, affecting the filtering efficiency.

[0024] In order to make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the embodiments of the present application. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0026] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a replaceable connection, or an integral connection. It may be a mechanical connection or an electrical connection. It may be directly connected or indirectly connected through an intermediate medium. It may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0027] The existing pretreatment and filtration process for base oils faces the core technical problem of easy clogging of the filter mesh, which is specifically manifested as follows: Flow resistance caused by high viscosity: Base oils (especially high-viscosity mineral oils, synthetic oils such as PAO or ester oils) have poor fluidity at normal or low temperatures, and impurity particles are easily adhered to the filter mesh fibers, quickly forming a dense filter cake layer, significantly reducing the filtration efficiency; Complexity of impurity components: The oxidized gums in base oils have viscoelasticity. After mixing with hard particles such as metal chips, they are prone to form composite blockages on the filter mesh surface, and it is difficult to completely remove them by conventional backwashing or mechanical scraping; Limitation of thermal sensitivity: To reduce viscosity, the existing technology often heats the base oil to improve its fluidity, but excessive heating (especially for synthetic oils with poor thermal oxidation stability) may cause oil deterioration and generate secondary pollutants; Bottleneck in continuous production: Frequent shutdowns for cleaning or replacing the filter mesh caused by blockages seriously restrict the continuity of large-scale production and increase the operation and maintenance costs. Example

[0028] A grease stirring device provided by an embodiment of the present invention includes a filtration tank 1. An outlet on the side wall of the filtration tank 1 is connected to a stirring tank 3 through a connecting conduit 2. The filtration assembly 4 includes the filtration tank 1 and main components provided in the filtration tank 1. A lifting and stirring assembly 5 is connected in the inner cavity of the stirring tank 3. A filter residue discharge pipe 6 is provided at the bottom of the filtration tank 1. A controller 7 is connected to the side wall of the stirring tank 3 through a connecting seat. A working pump 8 is connected to the connecting conduit 2; The bottom of the filtration tank 1 is of a V-shaped structure and is inclined 60 degrees towards the inlet of the connecting conduit 2, so as to facilitate feeding.

[0029] Furthermore, the working pump 8 is connected to the controller 7 through a wire and the connection method is electrical connection, and the operation of the working pump 8 can be controlled by the controller 7; In this embodiment, refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7, the filtering component 4 includes a first driving member 401. The first driving member 401 is a rotating motor. The first driving member 401 is connected to the end face of the filtering tank 1 through a connecting seat. The driving end of the first driving member 401 is connected to a driving rod 402 through a coupling. The other end of the driving rod 402 is connected to a driving bevel gear 403. A rotating bevel gear 404 and a driven bevel gear 405 are meshed and connected to the side wall of the driving bevel gear 403. A rotating rod 406 is connected to the center of the rotating bevel gear 404. The other end of the rotating rod 406 and located inside the filtering tank 1 is connected to a centrifugal filtering barrel 407. The bottom of the centrifugal filtering barrel 407 is rotatably connected to the bottom inside the filtering tank 1 through a rotating connecting seat 408. A plurality of rotating rollers 409 are connected to the side wall of the centrifugal filtering barrel 407 through a connecting plate. A driven rod 410 is connected to the center of the rotating bevel gear 404 and located on the outer wall of the rotating rod 406. The driven rod 410 is sleeved outside the rotating rod 406. The bottom of the driven rod 410 and located inside the filtering tank 1 is connected to an abutting connecting plate 411. Fixed frames 412 are symmetrically connected to the side wall of the abutting connecting plate 411. A cleaning scraper 413 is arranged at the bottom of the fixed frame 412 and located on the inner wall of the centrifugal filtering barrel 407. An abutting rod 414 is connected to the fixed frame 412. One end of the abutting rod 414 is connected to an abutting bevel gear 415. A fixed bevel gear 416 is connected to the side wall of the abutting bevel gear 415. The fixed bevel gear 416 is connected to the top inside the filtering tank 1. A rotating crank 417 is connected to the side wall of the abutting rod 414. An abutting pull rod 418 is connected to the rotating crank 417. The other end of the abutting pull rod 418 is connected to a moving rod 419. Limiting sliders 420 are connected to both ends of the moving rod 419. A limiting connecting plate 421 is connected to the limiting sliders 420. The limiting connecting plate 421 is connected to the bottom of the fixed frame 412. A cleaning brush 422 is arranged on the side wall of the limiting slider 420 and located on the inner wall of the centrifugal filtering barrel 407. The cleaning brush 422 is attached to the inner wall of the centrifugal filtering barrel 407. Limiting rollers 423 are symmetrically connected to the end face of the fixed frame 412 through a connecting plate. An annular sliding rail 424 is arranged on the side wall of the limiting roller 423. The annular sliding rail 424 is connected to the top inside the filtering tank 1.

[0030] The bottom of the centrifugal filtering barrel 407 is of a conical structure, thus facilitating the discharging of materials and avoiding the accumulation of filter residues at the bottom of the filtering tank 407.

[0031] Based on the above structure and the connection relationship of the above structure, the controller 7 controls the first driving member 401. When the driving end of the first driving member 401 rotates, it drives the driving rod 402 and the driving bevel gear 403 to rotate in sequence. When the driving bevel gear 403 rotates, it drives the rotating bevel gear 404 to rotate clockwise and drives the driven bevel gear 405 to rotate counterclockwise. When the rotating bevel gear 404 rotates clockwise, it drives the rotating rod 406 and the centrifugal filter barrel 407 to rotate, so as to carry out the filtration and separation work of the base oil pretreatment. When the rotating bevel gear 404 rotates counterclockwise, it drives the driven rod 410, the connecting link 411, the fixed frame 412, the cleaning scraper 413, the connecting rod 414 and the connecting bevel gear 415 to rotate counterclockwise, so that when the centrifugal filter barrel 407 rotates, the cleaning scraper 413 separates the material from the inner wall of the centrifugal filter barrel 407, and makes the cleaning scraper 413 in a state without material in the closed environment formed with the inner wall of the centrifugal filter barrel 407. At this time, when the connecting bevel gear 415 rotates and the connecting bevel gear 415 and the fixed bevel gear 416 are in a meshing state, it drives the connecting rod 414 and the rotating crank 417 to rotate self-revolving. When the rotating crank 417 rotates self-revolving, through the connecting pull rod 418 and the moving rod 419, it drives the limiting slider 420 to reciprocate up and down in the chute of the limiting connecting plate 421. When the limiting slider 420 reciprocates up and down in the chute of the limiting connecting plate 421, it drives the cleaning brush 422 to reciprocate on the inner wall of the centrifugal filter barrel 407, and then carries out the cleaning work of the inner wall of the centrifugal filter barrel 407 in the closed environment formed by the cleaning scraper 413 and the inner wall of the centrifugal filter barrel 407.

[0032] Further, the first driving member 401 is connected to the controller 7 through a wire and the connection method is electrical connection, and the operation of the first driving member 401 can be controlled through the controller 7.

[0033] Further, the driving rod 402 is connected to the end face of the filter tank 1 through a bearing seat, and the connection method between the driving rod 402 and the bearing seat is rotational connection. The rotating rod 406 is connected to the end face of the filter tank 1 through a bearing seat, and the connection method between the rotating rod 406 and the bearing seat is rotational connection. On the inner wall of the filter tank 1 and at the position corresponding to the rotating roller 409, a track slide plate is provided. The driven rod 410 is connected to the end face of the filter tank 1 through a bearing seat, and the connection method between the driven rod 410 and the bearing seat is rotational connection. The driven rod 410 is a hollow structure, and the mating method between the central hole of the driven rod 410 and the rotating rod 406 is clearance fit. When the first driving member 401 operates, it can drive the driving rod 402, the rotating rod 406 and the driven rod 410 to rotate.

[0034] Further, the connecting rod 414 is connected to the side wall of the fixed frame 412 through a bearing seat. The connecting rod 414 is rotatably connected to the bearing seat. The rotating crank 417 is rotatably connected to the connecting rod 418. The connecting rod 418 is rotatably connected to the moving rod 419. A chute is correspondingly formed on the side wall of the limiting connecting plate 421 and corresponds to the limiting slider 420. The limiting slider 420 is slidably connected to the chute. The limiting roller 423 has a drum-shaped structure. A connecting clamping groove is correspondingly arranged on the side wall of the annular slide rail 424 and corresponds to the limiting roller 423. When the fixed frame 412 rotates, the cleaning brush 422 is driven to move up and down through the rotating crank 417, the connecting rod 418, the moving rod 419 and the limiting slider 420.

[0035] Further, the rotating connection seat 408 has a hollow structure. The rotating connection seat 408 is arranged above the filter residue discharge pipe 6 and can assist the centrifugal filter barrel 407 to rotate. The cleaning scraper 413 has a hollow shuttle-shaped structure. When the centrifugal filter barrel 407 rotates, the cleaning scraper 413 can ensure that the filter residue on the centrifugal filter barrel 407 is scraped off. Further, a diversion channel is arranged inside the cleaning scraper 413 with a hollow shuttle-shaped structure. The diversion channel is communicated with the filter residue discharge pipe 6 to guide impurities to be intensively discharged to the filter residue discharge pipe 6, realizing the precise derivation of filter residue and avoiding secondary pollution.

[0036] The beneficial effects of this embodiment: The driving motor in the filtering assembly drives the cleaning scraper and the centrifugal filter barrel to rotate in opposite directions through the transmission structure, so as to separate the filter residue from the inner wall of the centrifugal filter barrel, and make the cleaning scraper and the inner wall of the centrifugal filter barrel form a state without material in a closed environment. At the same time, it also drives the cleaning brush to reciprocate on the inner wall of the centrifugal filter barrel, and then cleans the inner wall of the centrifugal filter barrel in the closed environment surrounded by the cleaning scraper and the inner wall of the centrifugal filter barrel, improving the filtering efficiency of the base oil.

[0037] The centrifugal filter barrel is driven by the first driving member to rotate. Under the action of centrifugal force, impurities (such as metal chips and gums) in the base oil are accelerated and thrown towards the barrel wall. Compared with the traditional static filter screen that relies on the fluid pressure difference for filtration, centrifugal force can overcome the flow resistance of high-viscosity base oil and significantly improve the impurity separation efficiency, especially suitable for the rapid filtration of high-viscosity oil products at normal or low temperatures.

[0038] By improving the filtration efficiency through centrifugal force and the clogging clearing ability of reverse scraping, this filtering assembly does not need to rely on heating the base oil to reduce viscosity (the traditional heating temperature control accuracy is insufficient and prone to cause oil product deterioration). Therefore, it is particularly suitable for filtering synthetic oils (such as ester oils) with poor thermal oxidation stability, avoiding secondary pollution caused by improper temperature control.

[0039] The cleaning scraper operates synchronously with the centrifugal filtration barrel, scraping impurities in real time during the filtration process, eliminating the need for manual cleaning or filter screen replacement during machine downtime, and ensuring continuous production. This feature directly addresses the problem of continuous production interruption caused by frequent blockage cleaning in the prior art, significantly improving the stability of the grease preparation process and reducing operation and maintenance costs.

[0040] Through the cooperation of a single driving component and two sets of transmission mechanisms, the coordinated operation of centrifugal filtration and dynamic blockage cleaning can be achieved, and then the synergistic effect of the brush and the scraper can further remove residual impurities (such as adhering colloid) and improve the inner wall cleanliness. Compared with the complex structures of multi-layer gradient filter screens or external back-blowing systems, this solution simplifies the mechanical design while ensuring efficient filtration, and is more easily integrated into existing grease production equipment. Embodiment

[0041] In this embodiment, referring to Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10 , the lifting and stirring assembly 5 includes a fixed box body 501, the fixed box body 501 is connected to the end surface of the stirring tank 3, a second driving component 502 is connected to the end surface of the fixed box body 501 through a connecting seat, the second driving component 502 is a rotating motor, the driving end of the second driving component 502 is connected to a driving rotating rod 503 through a coupling, the other end of the driving rotating rod 503 is meshed and connected to a transmission bevel gear 505 through a connecting bevel gear 504, a rotating rotating rod 506 is connected to the center of the transmission bevel gear 505, a driving gear 507 and a driving helical gear 508 are sleeved on the rotating rotating rod 506, a driven gear 509 is meshed and connected to the side wall of the driving gear 507, a rotating sliding sleeve 510 is connected to the center of the driven gear 509, a connecting sliding rod 511 is connected to the center of the rotating sliding sleeve 510, a limiting sliding sleeve 512 is connected to the outer wall of the connecting sliding rod 511, a stirring blade 513 is connected to the bottom of the connecting sliding rod 511 and located in the inner cavity of the stirring tank 3, a driven helical gear 514 is meshed and connected to the side wall of the driving helical gear 508, a driving connecting rod 515 is connected to the center of the driven helical gear 514, one end of the driving connecting rod 515 is connected to a driving coupling shaft 516 through a connecting plate, a driving pull rod 517 is connected to the outer wall of the driving coupling shaft 516, the other end of the driving pull rod 517 is connected to a connecting coupling shaft 518, one end of the connecting coupling shaft 518 is connected to a rotating connecting rod 519 through a connecting plate, a rotating gear 520 is connected to the side wall of the rotating connecting rod 519, a cylindrical rack 521 is meshed and connected to the side wall of the rotating gear 520, and the cylindrical rack 521 is connected to the outer wall of the connecting sliding rod 511; Based on the above structure and the connection relationship of the above structure, the controller 7 controls the second driving member 502. When the driving end of the second driving member 502 rotates, it drives the driving rotating rod 503, the connecting bevel gear 504, the transmission bevel gear 505, the rotating rotating rod 506, the driving gear 507, the driving helical gear 508, the driven gear 509, the rotating sliding sleeve 510, the connecting sliding rod 511, the limiting sliding sleeve 512, the stirring blade 513, the driven helical gear 514 and the driving connecting rod 515 to rotate in sequence. When the stirring blade 513 rotates, the stirring work of the material is carried out. When the driving connecting rod 515 rotates, it drives the driving connecting shaft 516 to rotate through the connecting plate. When the driving connecting shaft 516 rotates, it drives the rotating connecting rod 519 and the rotating gear 520 to reciprocate through the driving pull rod 517, the connecting connecting shaft 518 and the connecting plate. When the rotating gear 520 reciprocates and there is a cylindrical rack 521 meshed with the side wall of the rotating gear 520, it drives the cylindrical rack 521 and the connecting sliding rod 511 to move up and down reciprocally, so that the stirring blade 513 can not only rotate and stir but also move up and down, making the material stirred more evenly; Further, the second driving member 502 is connected to the controller 7 through a wire and the connection method is electrical connection, and the operation of the second driving member 502 can be controlled by the controller 7; Further, the driving rotating rod 503 is connected to the end face of the fixed box body 501 through a bearing seat, and the connection method between the driving rotating rod 503 and the bearing seat is rotational connection. The rotating rotating rod 506 is connected to the end face of the fixed box body 501 through a bearing seat, and the connection method between the rotating rotating rod 506 and the bearing seat is rotational connection. The rotating sliding sleeve 510 is connected to the end face of the fixed box body 501 through a bearing seat, and the connection method between the rotating sliding sleeve 510 and the bearing seat is rotational connection. The limiting sliding sleeve 512 is connected to the bottom of the fixed box body 501 through a bearing seat, and the connection method between the limiting sliding sleeve 512 and the bearing seat is rotational connection. When the second driving member 502 operates, it can drive the driving rotating rod 503, the rotating rotating rod 506, the rotating sliding sleeve 510 and the limiting sliding sleeve 512 to rotate; Further, an engagement hole is provided at the center of the rotating sliding sleeve 510 corresponding to the connecting sliding rod 511, and the connection method between the connecting sliding rod 511 and the engagement hole is sliding connection. An engagement hole is provided at the center of the limiting sliding sleeve 512 corresponding to the connecting sliding rod 511, and the connection method between the connecting sliding rod 511 and the engagement hole is sliding connection, which can ensure that the connecting sliding rod 511 moves in the rotating sliding sleeve 510 and the limiting sliding sleeve 512; Further, the vertical distance between the center line of the driving connecting rod 515 and the center line of the driving coupling shaft 516 is less than the vertical distance between the center line of the connecting coupling shaft 518 and the center line of the rotating connecting rod 519. The driving connecting rod 515 is connected to the side wall of the inner cavity of the fixed box body 501 through a bearing seat. The connection mode between the driving connecting rod 515 and the bearing seat is a rotating connection. The connection mode between the driving coupling shaft 516 and the driving pull rod 517 is a rotating connection. The connection mode between the driving pull rod 517 and the connecting coupling shaft 518 is a rotating connection. The rotating connecting rod 519 is connected to the side wall of the inner cavity of the fixed box body 501 through a bearing seat. The connection mode between the rotating connecting rod 519 and the bearing seat is a rotating connection. When the driving helical gear 508 rotates, it can drive the driving connecting rod 515 and the rotating connecting rod 519 to rotate.

[0042] Advantages of this embodiment: By providing a lifting and stirring assembly in the grease stirring device, the rotating motor in the lifting and stirring assembly drives the stirring blade to move up and down while rotating through a transmission structure, breaking the oil layer stratification, improving the mixing uniformity of the thickener and the base oil, and improving the stirring efficiency. At the same time, the lifting function of the stirring blade can adapt to the stirring requirements of oils with different viscosities, expanding the application range of the device.

[0043] The multi-stage gear transmission enables a single driving part to control the rotation and lifting of the stirring blade simultaneously, reducing energy consumption.

[0044] By providing a filtering assembly and a lifting and stirring assembly in the grease stirring device, the rotating motor and the working pump in the filtering assembly and the lifting and stirring assembly can directly introduce the filtered base oil into the stirring tank through a transmission structure, reducing manual labor and improving the automation degree of grease processing, making the device more convenient to use.

[0045] Working process of the present invention: When using the grease stirring device, first connect the device to the power supply to make the device in a working state. At this time, import the grease into the inner cavity of the centrifugal filter barrel 407. Then, control the first driving member 401 through the controller 7. When the driving end of the first driving member 401 rotates, drive the driving rod 402 to rotate. The driving rod 402 drives the driving bevel gear 403 to rotate. When the driving bevel gear 403 rotates, drive the rotating bevel gear 404 to rotate clockwise and drive the driven bevel gear 405 to rotate counterclockwise. When the rotating bevel gear 404 rotates clockwise, drive the rotating rod 406 and the centrifugal filter barrel 407 to rotate, so as to carry out the filtration and separation work of the base oil pretreatment, and separate the base oil into the interlayer between the filter tank 1 and the centrifugal filter barrel 407. When the rotating bevel gear 404 rotates counterclockwise, drive the driven rod 410, the connecting link plate 411, the fixed frame 412, the cleaning scraper 413, the connecting rod 414 and the connecting bevel gear 415 to rotate counterclockwise, so that the cleaning scraper 413 and the centrifugal filter barrel 407 rotate in opposite directions to each other, thereby separating the base oil from the inner wall of the centrifugal filter barrel 407 and making the cleaning scraper 413 and the inner wall of the centrifugal filter barrel 407 in a state of no material in the closed environment. At this time, when the connecting bevel gear 415 rotates and the connecting bevel gear 415 and the fixed bevel gear 416 are in a meshing state, drive the connecting rod 414 and the rotating crank 417 to rotate self-rotationally. When the rotating crank 417 rotates self-rotationally, drive the limit slider 420 to reciprocate up and down in the chute of the limit connecting plate 421 through the connecting pull rod 418 and the moving rod 419. When the limit slider 420 reciprocates up and down in the chute of the limit connecting plate 421, drive the cleaning brush 422 to reciprocate on the inner wall of the centrifugal filter barrel 407, and then carry out the cleaning work of the inner wall of the centrifugal filter barrel 407 in the closed environment composed of the cleaning scraper 413 and the inner wall of the centrifugal filter barrel 407, improving the filtration efficiency of the base oil; Afterwards, the working pump 8 is started by the controller 7, so that the working pump 8 pumps the filtered grease into the inner cavity of the stirring tank 3. At the same time, different raw materials are added to the feed port of the stirring tank 3. Finally, the controller 7 controls the first driving member 401. When the driving end of the first driving member 401 rotates, it drives the driving rotating rod 503 to rotate. The driving rotating rod 503 drives the connecting bevel gear 504 to rotate. The connecting bevel gear 504 drives the transmission bevel gear 505 to rotate. The transmission bevel gear 505 drives the rotating rotating rod 506 to rotate. The rotating rotating rod 506 drives the driving gear 507 to rotate. The driving gear 507 drives the driven gear 509 to rotate. The driven gear 509 drives the rotating sliding sleeve 510 to rotate. The rotating sliding sleeve 510 drives the connecting sliding rod 511 to rotate. The connecting sliding rod 511 drives the limiting sliding sleeve 512 and the stirring blade 513 to rotate. When the stirring blade 513 rotates, the stirring work of the grease is then carried out. The rotating rotating rod 506 drives the driving helical gear 508 to rotate. The driving helical gear 508 drives the driven helical gear 514 to rotate. The driven helical gear 514 drives the driving connecting rod 515 to rotate. When the driving connecting rod 515 rotates, it drives the driving connecting shaft 516 to rotate through the connecting plate. When the driving connecting shaft 516 rotates, it drives the rotating connecting rod 519 and the rotating gear 520 to reciprocate through the driving pull rod 517, the connecting connecting shaft 518, and the connecting plate. When the rotating gear 520 reciprocates, and on the condition that a cylindrical rack 521 is meshed and connected to the side wall of the rotating gear 520, it drives the cylindrical rack 521 and the connecting sliding rod 511 to move up and down reciprocally, so that the stirring blade 513 can drive the stirring blade 513 to move up and down while rotating and stirring, thereby making the grease stirring more uniform.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A filter assembly, characterized in that: include: A centrifugal filter barrel, a cleaning scraper, a first driving member, a first transmission member, and a second transmission member; The input end of the first transmission member is connected to the output end of the first driving member, and the output end is connected to the centrifugal filter barrel; The input end of the second transmission member is connected to the output end of the first driving member, and the output end is connected to the cleaning scraper; The cleaning scraper extends along the depth direction of the centrifugal filter barrel and fits with the inner wall of the centrifugal filter barrel; The rotation direction of the cleaning scraper is opposite to the rotation direction of the centrifugal filtering barrel.

2. A filter assembly according to claim 1, characterized in that: The output end of the first driving member is connected to a driving bevel gear; The first transmission member includes a rotating bevel gear and a rotating rod; The rotating bevel gear is meshed with the driving bevel gear and is fixedly connected to the input end of the rotating rod; The output end of the rotating rod is connected to the centrifugal filter barrel; The second transmission member includes a driven bevel gear, a driven rod and a connecting plate; The driven rod is rotatably sleeved outside the rotating rod; The driven bevel gear is meshed with the driving bevel gear and is fixedly connected to the input end of the driven rod; The output end of the driven rod is fixedly connected to the connecting plate; The connecting plate is connected to the cleaning blade.

3. A filter assembly according to claim 2, characterized in that: Also includes: Cleaning brush and third transmission member; The cleaning brush extends along the depth direction of the centrifugal filter barrel and fits the inner wall of the centrifugal filter barrel; The input end of the third transmission member is connected to the output end of the first driving member, and the output end is connected to the cleaning brush to drive the cleaning brush to reciprocate along the depth direction of the centrifugal filter barrel.

4. A filter assembly according to claim 3, characterized in that: The third transmission member includes a fixed bevel gear, a connecting bevel gear, a connecting rod and a rotating crank; The fixed bevel gear is fixedly sleeved on the outside of the driven rod; The input end of the connecting bevel gear is meshed with the fixed bevel gear, and the output end is connected to the input end of the connecting rod; The input end of the rotating crank is connected to the output end of the connecting rod, and the output end is connected to the cleaning brush; The second transmission member further comprises a fixed frame; One end of the fixed frame is connected to the connecting plate, and the other end is connected to the cleaning scraper; The connecting rod is inserted into the fixing frame.

5. A filter assembly according to claim 4, characterized in that: The third transmission member also includes a connecting rod, a moving rod, a limiting slider and a limiting connecting plate; The input end of the connecting rod is rotationally connected to the rotating crank, and the output end is rotationally connected to the moving rod; The limiting connecting plate is fixedly connected to the fixed frame and is provided with a sliding groove extending along the depth direction of the centrifugal filter barrel; The limiting sliding block is arranged in the sliding groove and is fixedly connected to the end of the moving rod; The cleaning brush is fixedly connected to the limiting slider.

6. A filter assembly according to any one of claims 1 to 5, characterized in that: The cleaning scraper is a hollow shuttle-shaped structure.

7. A filter assembly according to any one of claims 1 to 5, characterized in that: Also includes: Filter tank; The centrifugal filter barrel is disposed in the filter tank and is rotatably connected to the filter tank; A filter residue discharge pipe is arranged at the bottom of the filter tank.

8. A grease stirring device, characterized in that: include: A stirring tank, a connecting conduit and a filter assembly as claimed in any one of claims 1 to 7; The input end of the connecting conduit is in communication with the output end of the filtering assembly, and the output end is in communication with the input of the stirring tank.

9. A grease stirring device according to claim 8, characterized in that: Also includes: A lifting and stirring assembly provided in the stirring tank; The lifting and stirring assembly includes a second driving member, a stirring blade, a third transmission member and a fourth transmission member; The stirring blade is adapted to the stirring space of the stirring tank; The input end of the third transmission member is connected to the output end of the second driving member, and the output end is connected to the stirring blade to drive the stirring blade to rotate; The input end of the fourth transmission member is connected to the output end of the second driving member, and the output end is connected to the stirring blade to drive the stirring blade to rise and fall.

10. A grease stirring device according to claim 9, characterized in that: The third transmission member includes a connecting bevel gear, a transmission bevel gear, a rotation transmission rod, a driving gear, a driven gear and a connecting sleeve; The connecting bevel gear is connected to the output end of the second driving member and meshes with the transmission bevel gear fixedly sleeved with the rotation transmission rod; The driving gear is fixedly sleeved on the rotating transmission rod and meshes with the driven gear fixedly sleeved on the connecting sleeve; The fourth transmission member includes a driving bevel gear, a driven bevel gear, a driving connecting rod, a first connecting plate, a driving connecting shaft, a driving pull rod, a connecting connecting shaft, a second connecting plate, a rotating connecting rod and a rotating gear, a cylindrical rack and a connecting sliding rod; The driving helical gear is fixedly sleeved on the rotation transmission rod and meshes with the driven helical gear; The input end of the driving connecting rod is fixedly connected to the driven helical gear, and the output end is rotatably connected to the input end of the driving connecting shaft through the first connecting plate; The input end of the driving pull rod is rotatably connected to the output end of the driving coupling, and the output end is connected to the input end of the connecting coupling; The second connecting plate has an input end that is rotatably connected to the output end of the connecting shaft, and an output end that is connected to the rotating connecting rod; The rotating gear is fixedly sleeved on the rotating connecting rod and meshes with the cylindrical rack fixedly sleeved on the connecting sliding rod; The connecting slide rod is inserted into the connecting slide sleeve.

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