High efficiency diesel filter device driven by shaft

Abstract

The application belongs to the technical field of fuel filters, and discloses a high-efficiency diesel filter device driven by a shaft, which comprises a filter main body, a filter rotating assembly and a magnetic shaft coupling assembly; the filter main body comprises a main oil chamber and a power chamber; the filter rotating assembly comprises an iron core frame rotatably arranged in the main oil chamber, and a paper filter element is arranged in the iron core frame, so that diesel oil from the outside is filtered through the paper filter element; the oil path assembly comprises an oil inlet channel and an oil outlet channel, and the oil inlet channel extends into the inner cavity of the paper filter element; the magnetic shaft coupling assembly comprises an electric motor, and the electric motor is drivingly connected with an induction runner, and the induction runner is drivingly connected with the iron core frame through magnetic shaft coupling. The diesel filter device can increase the temperature of diesel oil in the filter, thereby reducing the viscosity of the diesel oil, and the filter rotating assembly can rapidly throw out the diesel oil from the paper filter element through centrifugal action during the rotation process, and agitate the filtered diesel oil towards the oil outlet channel, thereby improving the filtering efficiency of the filter.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of fuel filters, and particularly relates to a high-efficiency diesel filter device driven by a shaft. BACKGROUND

[0002] A fuel filter plays an irreplaceable role in the normal operation and performance maintenance of an internal combustion engine, and can ensure stable performance of the internal combustion engine and prolong the service life.

[0003] However, under the condition of low temperature in winter, the existing diesel filter may face multiple difficulties. As the temperature drops, the wax component in diesel may be precipitated, resulting in poor flowability of diesel or even solidification, and thus causing icing in the filter and blockage of the oil circuit, so that the engine is difficult to start; meanwhile, low temperature may also cause the filter to be blocked by impurities and particulate matter, thereby affecting the performance of the engine.

[0004] Therefore, the application designs a high-efficiency diesel filter device driven by a shaft to solve the above technical problems. SUMMARY

[0005] To solve the above technical problems, the application provides a high-efficiency diesel filter device driven by a shaft, which solves the problems of easy blockage of the filter and poor filtering effect under low temperature, ensures normal operation of the filter, and guarantees smooth starting of the engine.

[0006] To achieve the above purpose, the application provides a high-efficiency diesel filter device driven by a shaft, which comprises:

[0007] A filter main body comprising a main oil chamber and a power chamber arranged correspondingly in up and down directions;

[0008] A filtering rotating assembly comprising an iron core frame rotatably arranged in the main oil chamber, wherein a paper filter element for filtering diesel is arranged on the iron core frame, diesel from outside enters the inner cavity of the paper filter element, and filtered diesel enters the main oil chamber;

[0009] An oil circuit assembly comprising an oil inlet channel and an oil outlet channel arranged at the top end of the main oil chamber, wherein the oil inlet channel extends into the inner cavity of the paper filter element and is rotatably connected with the iron core frame;

[0010] A magnetic shaft coupling assembly comprising an electric motor arranged in the power chamber, wherein the electric motor is drivingly connected with an induction runner, the induction runner is rotatably connected in the power chamber and arranged correspondingly in up and down directions with the iron core frame, and the induction runner is drivingly connected with the iron core frame through magnetic shaft coupling.

[0011] Preferably, the iron core frame comprises an upper iron core base and a lower iron core base arranged correspondingly, the oil inlet channel passes through the upper iron core base and is rotationally connected with the upper iron core base; a plurality of support columns are arranged at equal intervals between the upper iron core base and the lower iron core base, and the paper filter element is arranged in a space formed by the plurality of support columns.

[0012] Preferably, a plurality of cylindrical transmission magnets are arranged at equal intervals in the iron core base, a plurality of induction magnets adapted to the transmission magnets are arranged at equal intervals on the induction runner, the number of the induction magnets is greater than that of the transmission magnets, and the induction runner drives the iron core base to rotate through the transmission magnets and the induction magnets.

[0013] Preferably, a plurality of iron blocks are arranged at equal intervals at the bottom end of the main oil chamber, and the iron blocks, the induction magnets and the transmission magnets are coaxially arranged.

[0014] Preferably, a hollow plug is arranged at the top end of the main oil chamber, the top end of the hollow plug is in communication with the oil inlet channel, the bottom end of the hollow plug extends into the inner cavity of the paper filter element, and the upper iron core base is rotationally connected with the hollow plug.

[0015] Preferably, the filter rotating assembly further comprises an upper iron core base and a lower iron core base arranged correspondingly, the upper iron core base is rotationally connected with the hollow plug through a first bearing, the upper iron core base is sleeved and fixed to the first bearing, and the lower iron core base is rotationally connected with the lower iron core base through a second bearing.

[0016] Preferably, the output end of the motor is drivingly connected with a driving runner, and the driving runner is drivingly connected with the induction runner through a belt.

[0017] Preferably, an induction runner base coaxial with the lower iron core base is arranged in the power chamber, the induction runner base is fixed to the inner ring of a connecting shaft bearing, and the induction runner is sleeved and fixed to the outer ring of the connecting shaft bearing.

[0018] Preferably, a plurality of helical vanes are arranged outside the support columns.

[0019] Preferably, a primary filter screen is arranged in the oil inlet channel, a closing nut is arranged on the oil inlet channel, and the closing nut and the primary filter screen are arranged correspondingly.

[0020] Compared with the prior art, the present invention has the following advantages and technical effects: The present invention discloses a high-efficiency diesel filter device driven by a shaft coupling. When the filter is working, the motor in the magnetic shaft coupling assembly is turned on, driving the induction wheel to rotate around the filter axis. The induction magnet also rotates around the filter axis. At this time, the direction of the magnetic flux lines in the iron block deviates with the induction magnet, causing the direction of the magnetization moment in the iron block to deviate in the opposite direction of the incoming path. Thus, the drive magnet moves in the opposite direction of the induction magnet's movement, thereby driving the filter rotating assembly to continuously rotate around the filter axis. Low-temperature diesel fuel enters the main oil chamber from the oil inlet channel of the upper oil circuit assembly and enters the paper filter element in the iron core frame of the filter rotating assembly. Through centrifugal force, the diesel fuel is quickly thrown out of the paper filter element, thereby improving the filter efficiency. The filtered diesel fuel fills the main oil chamber. At the same time, the induction wheel and the iron core frame are connected by magnetic force. The system generates a large amount of heat during operation. The transmission area is immersed in diesel fuel, and the heat generated is absorbed by the low-temperature diesel fuel, increasing its temperature, reducing its viscosity, and improving its filtration efficiency. Simultaneously, because diesel fuel is constantly entering and exiting, low-temperature diesel fuel enters while filtered diesel fuel exits through the oil outlet channel of the oil circuit assembly. This allows the diesel fuel to continuously absorb the heat generated by the transmission, preventing high temperatures from affecting the transmission. The rotating iron core mixes the filtered diesel fuel, improving the uniformity of mixing diesel fuel at different temperatures, accelerating heat absorption, and increasing the diesel fuel's heating efficiency. The power chamber and main oil chamber are independently arranged. The filter rotation assembly and magnetic shaft coupling assembly are respectively located in the main oil chamber and power chamber. Only the power chamber is connected to the wiring, and the filter rotation assembly and magnetic shaft coupling assembly operate without contact. Therefore, the two components are independent, require no lubrication, and have high reliability.

[0021] The diesel fuel filtration device of the present invention utilizes the large amount of heat generated during the operation of the magnetic shaft coupling assembly to increase the temperature of the diesel fuel inside the filter and reduce its viscosity. During the rotation of the filter rotation assembly, the diesel fuel can be quickly thrown out of the paper filter element by centrifugal force and the filtered diesel fuel can be stirred towards the oil outlet channel, thereby improving the filtration efficiency of the filter. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 This is a schematic diagram of the high-efficiency diesel filter device driven by the shaft according to the present invention.

[0024] Figure 2 For the present invention Figure 1 AA diagram;

[0025] Figure 3 For the present invention Figure 1 Diagram of BB in the middle;

[0026] Figure 4 A three-dimensional schematic view of the core holder of the present application;

[0027] In the figure: 1, filter body; 2, main oil chamber; 3, power chamber; 4, filter rotating assembly; 5, magnetic shaft coupling assembly; 6, oil inlet channel; 7, closing nut; 8, oil outlet channel; 9, primary filter screen; 10, hollow plug; 11, iron block; 12, first bearing; 42, upper core seat; 43, core holder; 44, paper filter element; 45, lower core seat; 46, second bearing; 47, closing rubber ring; 431, core top seat; 432, support column; 433, core bottom seat; 434, spiral fan blade; 435, transmission magnet; 51, motor seat; 52, motor; 53, drive rotating wheel; 54, belt; 55, induction rotating wheel; 56, induction magnet; 57, connecting shaft bearing; 58, induction rotating wheel seat. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0029] Fuel filters can effectively filter out particles, water and impurities in fuel, protect internal combustion engines from wear and damage, ensure stable performance of internal combustion engines and prolong service life, and their importance in the stable operation of internal combustion engines cannot be ignored. At the same time, clean fuel can burn more fully, improve fuel economy, and reduce exhaust emissions, which is both energy-saving and environmentally friendly. Therefore, regular replacement of fuel filters is also crucial, which can avoid filter blockage affecting fuel flow, thereby ensuring the stable operation of internal combustion engines. In short, fuel filters play an irreplaceable role in the normal operation and performance maintenance of internal combustion engines.

[0030] The structure of the commonly used fuel filter on the market mainly consists of a shell, a filter element, a filter core and the like. The shell protects the internal filter element and is usually made of metal or plastic, with an oil inlet and an oil outlet. The filter element is the core of the filter and is commonly used in paper filter elements and microporous filter membranes, which are responsible for removing impurities in fuel. Its working principle is to use the fine pore screening effect of the filter core to block particulate matter and pollutants from entering the fuel system, while using a pre-filter layer to filter large particles first, extending the service life of the filter core. The filter core also has a separation layer inside to separate water and small particles, ensuring clean fuel. In addition, the filter is also equipped with a pressure relief valve to prevent excessive internal pressure, a temperature sensor to monitor the working temperature of the filter core, and a fuel metering device to accurately control the amount of fuel entering the engine.

[0031] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0032] Referring to Figures 1-4 The embodiment provides a high-efficiency diesel filter device driven by a shaft, which comprises:

[0033] The filter body 1 comprises a main oil chamber 2 and a power chamber 3 arranged correspondingly in up and down directions.

[0034] The filter rotating assembly 4 comprises an iron core frame 43 rotatably arranged in the main oil chamber 2, and a paper filter element 44 arranged on the iron core frame 43 and used for filtering diesel oil; diesel oil from the outside enters the inner cavity of the paper filter element 44 and then enters the main oil chamber 2 after being filtered.

[0035] The oil path assembly comprises an oil inlet channel 6 and an oil outlet channel 8 arranged at the top end of the main oil chamber 2, wherein the oil inlet channel 6 extends into the inner cavity of the paper filter element 44 and is rotatably connected with the iron core frame 43.

[0036] The magnetic shaft coupling assembly 5 comprises an electric motor 52 arranged in the power chamber 3, and an induction runner 55 drivingly connected with the electric motor 52, wherein the induction runner 55 is rotatably arranged in the power chamber 3 and correspondingly arranged above and below the iron core frame 43, and the induction runner 55 is drivingly connected with the iron core frame 43 through magnetic shaft coupling.

[0037] The application discloses a high-efficiency diesel filter device driven by a shaft, and the motor 52 in the magnetic shaft coupling assembly 5 is opened when the filter works, the motor 52 drives the induction runner 55 to rotate around the filter axis, and then drives the filter rotating assembly 4 to continuously rotate around the filter axis; the low-temperature diesel oil enters the main oil chamber 2 from the oil inlet channel 6 of the oil way assembly from the upper part, enters the paper filter element 44 in the iron core frame 43 of the filter rotating assembly 4, and is rapidly thrown out of the paper filter element 44 through centrifugal action, so that the filtering efficiency of the filter is improved; the filtered diesel oil fills the main oil chamber 2, and a large amount of heat is generated when the induction runner 55 and the iron core frame 43 are driven by magnetic force; the region of the transmission is soaked in the diesel oil, the generated heat is absorbed by the low-temperature diesel oil, the temperature of the low-temperature diesel oil is increased, the viscosity of the diesel oil is reduced, the influence on the flowability of the diesel oil and the filtering is reduced, and the filtering efficiency of the diesel oil is improved; meanwhile, the diesel oil is in a state of continuous input and output, the low-temperature diesel oil enters, the filtered diesel oil is discharged from the oil outlet channel 8 of the oil way assembly, so that the diesel oil can continuously absorb the heat generated by the transmission, the influence of high temperature on the transmission is avoided, the filtered diesel oil is mixed when the iron core frame 43 rotates, the uniformity of the mixing of diesel oils at different temperatures is improved, the heat absorption speed is accelerated, and the temperature rising efficiency of the diesel oil is improved; the power chamber 3 and the main oil chamber 2 are independently arranged, the filter rotating assembly 4 and the magnetic shaft coupling assembly 5 are arranged in the main oil chamber 2 and the power chamber 3 respectively, only the power chamber 3 is connected with a circuit, and the filter rotating assembly 4 and the magnetic shaft coupling assembly 5 are not in contact during operation, so that the two assemblies are independent of each other, do not need to be lubricated, and have high reliability. The diesel filter device can increase the temperature of the diesel oil in the filter, reduce the viscosity of the diesel oil, rapidly throw out the diesel oil from the paper filter element 44 through centrifugal action during the rotation of the filter rotating assembly 4, stir the filtered diesel oil to the oil outlet channel 8, and improve the filtering efficiency of the filter.

[0038] In an embodiment of the application, the filter body 1 is in a cylindrical shape, is divided into the main oil chamber 2 and the power chamber 3 in an upper and lower manner, and the two parts are in an independent state; the filter rotating assembly 4 and the magnetic shaft coupling assembly 5 are arranged in the main oil chamber 2 and the power chamber 3 respectively, and when the two parts are driven, the diesel oil in the main oil chamber 2 can be prevented from entering the power chamber 3, and the magnetic shaft coupling assembly 5 can be prevented from being affected.

[0039] In a further optimization scheme, the iron core frame 43 comprises an iron core top seat 431 and an iron core bottom seat 433 arranged in a corresponding upper and lower manner, the oil inlet channel 6 passes through the iron core top seat 431 and is rotationally connected with the iron core top seat 431; a plurality of support columns 432 arranged at equal intervals are arranged between the iron core top seat 431 and the iron core bottom seat 433, and the paper filter element 44 is arranged in a space formed by the plurality of support columns 432.

[0040] Further optimization scheme, the core base 433 is provided with a plurality of cylindrical transmission magnets 435 at equal intervals, and a plurality of induction magnets 56 adapted to the transmission magnets 435 are provided on the induction rotating wheel 55 at equal intervals, and the induction rotating wheel 55 drives the core base 433 to rotate through the transmission magnets 435 and the induction magnets 56.

[0041] The filter rotating assembly 4 includes a first bearing, an upper core seat 42, a core frame 43, a paper filter element 44, a lower core seat 45, a second bearing 46, and a closed rubber ring 47. The upper end of the filter rotating assembly 4 is fixed to the top of the main oil chamber 2 through the first bearing, and the lower end is fixed to the bottom of the main oil chamber 2 through the second bearing 46, so that it can rotate around the filter axis in the main oil chamber 2, and the centrifugal filtration form is used to speed up the filtration of diesel oil.

[0042] Two sets of closed rubber rings 47 are arranged on the inner side of the first bearing and contact the hollow plug 10, which prevents direct contact between the oil inlet channel 6 and the outside of the filter rotating assembly 4.

[0043] The first bearing is provided with an upper core seat 42 at the bottom, and the upper core seat 42 can rotate around the filter axis. The second bearing 46 is provided with a lower core seat 45 at the bottom, and the lower core seat 45 can also rotate around the filter axis.

[0044] The upper end and the lower end of the paper filter element 44 are respectively inserted into the bottom of the upper core seat 42 and the top of the lower core seat 45 to form a fixed connection, and diesel oil enters the inner cavity of the paper filter element 44 and is accelerated under the action of centrifugal force.

[0045] The core frame 43 includes a core top seat 431, a support column 432, a core base 433, a spiral fan 434, and a transmission magnet 435. The core top seat 431 is fixed to the outer side of the upper core seat 42, the core base 433 is fixed to the outer side of the lower core seat 45, the core top seat 431 and the core base 433 are connected by the support column 432 at the outer edge, and the paper filter element 44 is wrapped therein. A plurality of cylindrical transmission magnets 435 are embedded at equal intervals on the outer edge of the bottom side of the core base 433, and the adjacent transmission magnets 435 have opposite magnetic poles. The spiral fan 434 is wound outside the support column 432 and is used to disturb the filtered diesel oil. The core frame 43 and the paper filter element 44 can continuously rotate along the filter axis.

[0046] Further optimization scheme, the filter rotating assembly further includes an upper core seat 42 and a lower core seat 45 arranged correspondingly, the upper core seat 42 is rotatably connected with the hollow plug 10 through the first bearing, and the core top seat 431 is sleeved and fixed on the first bearing, and the lower core seat 45 is rotatably connected with the lower core seat 45 through the second bearing 46.

[0047] Further optimization scheme, several support columns 432 outside winding provided with spiral fan blade 434. Spiral fan blade 434 will be stirred up in the main oil chamber 2 after filtering diesel oil, can promote its rapid into oil passage 8, improve the working efficiency of the whole filter.

[0048] Further optimization scheme, the bottom of the main oil chamber 2 is provided with a plurality of iron blocks 11 at equal intervals, and the iron blocks 11, the induction magnet 56 and the transmission magnet 435 are coaxially arranged.

[0049] Further optimization scheme, the top of the main oil chamber 2 is provided with a hollow plug 10, the top of the hollow plug 10 is communicated with the oil inlet channel 6, and the bottom of the hollow plug 10 extends into the inner cavity of the paper filter core 44; the iron core top seat 431 is rotationally connected to the hollow plug 10.

[0050] Further optimization scheme, the output end of the motor 52 is drivingly connected with a driving runner 53, and the driving runner 53 is drivingly connected with the induction runner 55 through a belt 54.

[0051] Further optimization scheme, the power chamber 3 is provided with an induction runner seat 58 coaxially arranged with the lower iron core seat 45, the induction runner seat 58 is fixedly connected with the inner ring of the connecting shaft bearing 57, and the induction runner 55 is fixedly connected with the outer ring of the connecting shaft bearing 57.

[0052] Further optimization scheme, the oil inlet channel 6 is designed with a primary filter screen 9, and the oil inlet channel 6 is provided with a closing nut 7, which is arranged in correspondence with the primary filter screen 9. The oil inlet channel 6 is connected from the inlet to the inside of the main oil chamber 2, and the primary filter screen 9 is arranged at the corner of the oil inlet channel 6 for preliminary filtering of impurities in diesel oil. The closing nut 7 is arranged outside the oil inlet channel 6, which can be removed to clean the primary filter screen 9 when needed.

[0053] The whole magnetic shaft coupling assembly 5 is arranged in the power chamber 3, and the magnetic shaft coupling assembly 5 comprises a motor seat 51, a motor 52, a driving runner 53, a belt 54, an induction runner 55, an induction magnet 56, a connecting shaft bearing 57 and an induction runner seat 58. The motor 52 is fixed on the bottom of the power chamber 3 through the motor seat 51. The induction runner seat 58 is installed on the upper layer of the power chamber 3, and the connecting shaft bearing 57 is fixed on the induction runner seat 58, and the shaft center of the connecting shaft bearing 57 is on the filter axis together with the shaft centers of the first bearing and the second bearing 46. The induction runner 55 is installed on the connecting shaft bearing 57 and can rotate around the axis of the induction runner seat 58. The driving runner 53 is installed on the motor 52 and is in the same plane with the induction runner 55, and the driving runner 53 is connected with the induction runner 55 through the belt 54 and can be controlled to rotate by the motor 52. The induction runner 55 is uniformly embedded with a plurality of induction magnets 56 on the outer edge, and the adjacent induction magnets 56 have opposite magnetic poles.

[0054] In one embodiment of the present application, the power chamber 3 is provided with additional space for placing the motor 52 on the basis of the original cylindrical shape.

[0055] In one embodiment of the present application, the induction magnet 56 has 12 cylinders and is uniformly distributed on the outer edge of the induction runner 55, with opposite magnetic poles of adjacent magnets; the transmission magnet 435 has 4 cylinders, with a diameter larger than the induction magnet 56, and is uniformly distributed on the bottom side of the iron core base 433, with opposite magnetic poles of adjacent magnets.

[0056] In one embodiment of the present application, the number of iron blocks 11 is 8, which serves as a magnetic resistance modulator to generate a 2-pole modulation magnetic field in the gap after modulation.

[0057] In one embodiment of the present application, the primary filter screen 9 is 18 mesh, with a mesh size of 1 mm.

[0058] In one embodiment of the present application, the outer diameter of the lower end of the hollow plug 10 is smaller than the inner diameter of the upper iron core base 42.

[0059] In one embodiment of the present application, the filter main body 1 shell is made of brass.

[0060] The present application precisely configures the number of induction magnets 56, transmission magnets 435 and iron blocks 11 to form an efficient magnetic coupling gear structure, so that the motor can output a larger rotational speed under smaller volume and load, thereby improving the working efficiency of the filtering rotating assembly.

[0061] Working process:

[0062] When the filter is working, the motor 52 is turned on to drive the runner 53 to rotate around the filter axis through the belt 54, and the induction magnet 56 in the induction runner 55 also rotates around the filter axis. At this time, the magnetic flux line direction in the iron block 11 deviates with the movement of the induction magnet 56, causing the direction of the magnetization magnetic moment in the iron block 11 to deviate to the opposite direction of the incoming path. Thus, the four transmission magnets 435 above are driven to move in the opposite direction of the movement of the induction magnet 56, driving the entire filtering rotating assembly 4 to continuously rotate around the filter axis. According to the magnetic field modulation theory, the source magnetic field generated by the induction magnet 56 is 6 pairs of poles, and the 8 iron blocks 11 in the middle generate a 2-pole modulation magnetic field after modulation, which are coupled to each other to generate torque, playing the role of a magnetic coupling gear. Therefore, the rotational speed of the filtering rotating assembly 4 is increased to 3 times the rotational speed of the induction magnet 56. Low-temperature diesel oil enters the main oil chamber 2 from the upper oil inlet channel 6. Due to the magnetic induction transmission, a large amount of heat is generated, which is evenly transmitted to the diesel oil by the spiral fan blade 434 and reduces its viscosity. At the same time, the diesel oil passes through the filter paper core under the centrifugal action of the filtering rotating assembly 4, and the rotation of the spiral fan blade 434 stirs the filtered diesel oil upwards to make it flow out from the oil outlet channel 8.

[0063] The beneficial effects of the present application are:

[0064] 1. The magnetic shaft coupling assembly 5 of the present application generates a large amount of heat during operation due to magnetic induction transmission, and evenly transmits the heat to the diesel oil in the filter through the spiral fan blade 434, which can reduce the viscosity of the diesel oil and improve the filtering efficiency.

[0065] 2. The filter rotating assembly 4 structure of the present application can make the diesel oil be quickly thrown out of the paper filter core 44 through centrifugal action during rotation, thereby improving the filtering efficiency of the filter.

[0066] 3. The filter rotating assembly 4 and the magnetic shaft coupling assembly 5 used in the present application are respectively arranged in the main oil chamber 2 and the power chamber 3, only the power chamber 3 is connected to the circuit, and the filter rotating assembly 4 and the magnetic shaft coupling assembly 5 are contactless operation, so the two parts of the assembly are independent of each other, do not need to be lubricated, and have high reliability.

[0067] 4. The spiral fan blade 434 of the present application stirs the filtered diesel oil in the main oil chamber 2 upwards, which can promote the diesel oil to be quickly discharged from the oil outlet passage 8 and improve the working efficiency of the entire filter.

[0068] 5. The present application can form a high-efficiency magnetic gear structure by accurately configuring the number of inductive magnets 56, transmission magnets 435 and iron blocks 11, so that the motor 52 can output a larger rotating speed under a smaller volume and load, thereby improving the working efficiency of the filter rotating assembly 4.

[0069] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0070] The above-described embodiments are only preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application.

Claims

1. A high-efficiency diesel fuel filter device driven by a coupling, characterized in that, include: The filter body (1) includes a main oil chamber (2) and a power chamber (3) arranged correspondingly at the top and bottom; The filter rotating assembly (4) includes an iron core frame (43) rotatably disposed in the main oil chamber (2). A paper filter element (44) for filtering diesel fuel is disposed in the iron core frame (43). Diesel fuel from the outside enters the inner cavity of the paper filter element (44), is filtered, and then enters the main oil chamber (2). The iron core frame (43) includes an iron core top seat (431) and an iron core base (433) disposed on the upper and lower sides respectively. The oil circuit assembly includes an oil inlet channel (6) and an oil outlet channel (8) disposed at the top of the main oil chamber (2). The oil inlet channel (6) extends into the inner cavity of the paper filter element (44) and is rotatably connected to the iron core frame (43). The magnetic shaft coupling assembly (5) includes a motor (52) installed in the power chamber (3), the motor (52) is connected to an induction wheel (55), the induction wheel (55) is rotatably connected in the power chamber (3) and is arranged vertically and vertically with the core frame (43), and the induction wheel (55) is connected to the core frame (43). The core base (433) is provided with a plurality of cylindrical drive magnets (435) at equal intervals. The induction wheel (55) is provided with a plurality of induction magnets (56) at equal intervals that are compatible with the drive magnets (435). The number of induction magnets (56) is greater than that of the drive magnets (435). The induction wheel (55) drives the core base (433) to rotate through the interaction of the drive magnets (435) and the induction magnets (56). Several iron blocks (11) are evenly spaced at the bottom of the main oil chamber (2). The iron blocks (11) are positioned between the transmission magnet (435) and the induction magnet (56). The iron blocks (11), the induction magnet (56) and the transmission magnet (435) are coaxially arranged.

2. The high-efficiency diesel fuel filter device with shaft drive according to claim 1, characterized in that: The oil inlet channel (6) passes through the core top seat (431) and is rotatably connected to the core top seat (431); a number of equally spaced support columns (432) are provided between the core top seat (431) and the core base (433), and the paper filter element (44) is arranged in the space formed by the number of support columns (432).

3. The high-efficiency diesel fuel filter device with shaft drive according to claim 2, characterized in that: A hollow plug (10) is provided through the top of the main oil chamber (2). The top of the hollow plug (10) is connected to the oil inlet channel (6). The bottom of the hollow plug (10) extends into the inner cavity of the paper filter element (44). The iron core top seat (431) is rotatably connected to the hollow plug (10).

4. The high-efficiency diesel fuel filter device with shaft drive according to claim 3, characterized in that: The filter rotation assembly also includes an upper core seat (42) and a lower core seat (45) arranged correspondingly above and below. The upper core seat (42) is rotatably connected to the hollow plug (10) through a first bearing (41). The core top seat (431) is sleeved and fixed on the first bearing (41). The lower core seat (45) is rotatably connected to the lower core seat (45) through a second bearing (46).

5. The high-efficiency diesel fuel filter device with shaft drive according to claim 4, characterized in that: The output end of the motor (52) is connected to a drive wheel (53), and the drive wheel (53) is connected to the induction wheel (55) via a belt (54).

6. The high-efficiency diesel fuel filter device with shaft drive according to claim 5, characterized in that: The power chamber (3) is provided with an induction wheel seat (58) coaxially arranged with the lower iron core seat (45). The induction wheel seat (58) is fixedly connected to the inner ring of the connecting shaft bearing (57), and the induction wheel (55) is sleeved and fixedly connected to the outer ring of the connecting shaft bearing (57).

7. The high-efficiency diesel fuel filter device with shaft drive according to claim 2, characterized in that: Spiral fan blades (434) are provided on the outer side of several of the support columns (432).

8. The high-efficiency diesel fuel filter device with shaft drive according to claim 1, characterized in that: The oil inlet channel (6) is equipped with a primary filter screen (9), and a sealing nut (7) is provided on the oil inlet channel (6). The sealing nut (7) is arranged vertically and vertically corresponding to the primary filter screen (9).

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