Magnetic oil filter in front of pump

Abstract

The magnetic oil filter in front of the pump is characterized in that an oil inlet is formed in the lower end of a filter element tank body, and an oil outlet is formed in the side part of the filter element tank body; a partition plate mounting opening is formed in the part close to the upper end of the filter element tank body; a pressing frame connecting part is arranged at the side part of the partition plate mounting opening; the partition plate is embedded in the partition plate mounting opening and is supported on the partition plate supporting column; a plurality of long slotted holes are uniformly distributed in the partition plate; a group of magnetic core frames are inserted in each slotted hole, a plurality of magnetic core sleeves are uniformly distributed on each group of magnetic core frames, and a magnetic core is inserted in each magnetic core sleeve; one end of the pressing frame is hinged with the upper end of the pressing frame connecting part, the other end of the pressing frame is provided with a handle, the upper cover is sealed at the upper port of the filter element tank body, and the lower end of the upper cover is in pressing contact with the handle of the pressing frame; guide rails are symmetrically arranged on the inner wall of the filter tank close to the two sides of the oil outlet, and the filter element is matched with vertical guide grooves in the guide rails on the two sides in an inserted mode and deviates from the oil inlet in the filter element tank. The device is compact in structure, convenient to operate and maintain and high in reliability.

Description

Technical Field

[0001] The present invention belongs to the technical field of lubricating oil filtration, and is applicable to the pre-pump filtration occasion with a small space, and is used for filtering ferromagnetic core particle impurities and solid impurities in the lubricating oil. Specifically, a pre-pump magnetic oil filter is designed. Background Art

[0002] For a conventional core oil filter to simultaneously filter ferromagnetic core particle impurities and solid impurities, the filter element is usually cylindrical, the magnetic core is arranged inside the cylindrical filter element, and an oil inlet chamber is separately provided. The structural size is large, the number of magnetic cores that can be arranged is small, and at the same time, there is a risk of falling off of the fasteners inside the filter, so it is not applicable to the pre-pump filtration occasion with a small space. Summary of the Invention

[0003] In view of the above technical problems, the present invention provides a pre-pump magnetic oil filter with a compact structure, convenient operation and maintenance, and high reliability.

[0004] The above object of the present invention is achieved by the following technical solutions:

[0005] A pre-pump magnetic oil filter includes a filter tank body, a partition board, a pressing frame, an upper cover, a magnetic core frame, a magnetic core and a filter element;

[0006] An oil inlet is provided at the lower end of the filter element tank body, and an oil outlet is provided at the side part; a partition board installation opening is provided at a position near the upper end of the filter element tank body, and a pressing frame connection part is provided at the side of the partition board installation opening; the partition board is embedded at the partition board installation opening and is supported on a partition board support column arranged on the inner side of the filter element tank body; a plurality of long slot holes are evenly arranged on the partition board along a direction parallel to the edge of the pressing frame connection part; a set of magnetic core frames is inserted into each long slot hole, and a plurality of vertically arranged magnetic core sleeves are evenly arranged on each set of magnetic core frames, and a magnetic core is inserted into each magnetic core sleeve; the pressing frame is arranged at the upper end of the partition board, one end of the pressing frame is hingedly connected to the upper end of the pressing frame connection part, a handle is arranged at the other end of the pressing frame, and the upper cover is hermetically fixed at the upper port position of the filter element tank body, and the lower end of the upper cover is in pressing contact with the handle of the pressing frame, so that the lower end of the pressing frame presses the magnetic core frame and the magnetic core;

[0007] Guide rails are symmetrically arranged on the inner wall of the filter tank body near both sides of the oil outlet, and vertical guide grooves are arranged on the guide rails; the filter element is inserted and matched with the vertical guide grooves on both sides of the guide rails and is arranged deviating from the oil inlet on the filter element tank body.

[0008] Moreover, it further includes a liquid level observation component, an oil level gauge, an oil filling port, and an oil drain plug; the liquid level observation component is arranged outside the filter tank body and includes a scale insertion tube arranged vertically. The scale insertion tube is fixed to the outside of the filter tank body through an insertion tube seat. The scale insertion tube is made of a transparent material. A communicating horizontal tube is fixed to the lower end of the scale insertion tube. The outer end of the horizontal tube is closed, and the inner end is inserted into the inner cavity of the filter tank body and communicated with the inner cavity of the filter tank body; the oil level gauge is inserted into the scale insertion tube; the oil filling port is arranged on the upper cover, and the oil drain plug is installed at a position close to the lower end on the side wall of the filter tank body.

[0009] Moreover, the magnetic core holder is welded by a seat plate, a handle, a frame, and the magnetic core sleeve; the handle is arranged at the middle position of the upper end of the seat plate, the frame is arranged at the lower end position of the seat plate and fixedly connected with the edge part of the lower end of the seat plate; the upper ends of a plurality of magnetic core sleeves are fixedly installed through the seat plate, and the lower parts of the plurality of magnetic core sleeves are fixedly installed through the bottom of the frame.

[0010] Moreover, the magnetic core includes a handle and a steel sleeve welded to the lower end of the handle. A magnetic material and a magnetic conducting sheet are arranged in the steel sleeve. The magnetic material and the magnetic conducting sheet are alternately stacked and assembled along the axial direction of the steel sleeve to form a multi-magnetic pole structure, and the surface magnetic induction intensity of all magnetic poles is not less than 9500 gauss, and the average value is not lower than 10000 gauss; the magnetic core is inserted into the magnetic core sleeve in a manner that the handle is exposed outside the upper end of the seat plate.

[0011] Moreover, the filter element adopts a plate structure and is composed of a skeleton component and a filter screen component fixed on the skeleton component. The skeleton component adopts a square frame structure. The convex platforms on the left and right sides of the skeleton component are inserted into the vertical guide grooves of the left and right guide rails on the inner wall of the filter tank body. The filter element covers the area of the oil outlet on the filter tank body.

[0012] The filter screen component is composed of a screen frame and a filter screen. The screen frame is composed of an upper filter screen frame plate, a lower filter screen frame plate, a left filter screen frame plate, a right filter screen frame plate, and 4 corner codes; the upper filter screen frame plate, the lower filter screen frame plate, the left filter screen frame plate, and the right filter screen frame plate are spliced into a square frame and fixedly connected at the four corner parts through a corner code and a screw respectively; the filter screen is a pleated plate structure, the filter screen precision is 40 - 60 meshes, and the filter screen is bonded inside the screen frame.

[0013] The advantages and positive effects of the present invention are as follows:

[0014] 1. In the limited space, the present invention is provided with multiple rows of magnetic cores and plate - type filter elements, realizing the filtration of ferromagnetic core particle impurities and solid impurities meeting the filtration accuracy requirements.

[0015] 2. The present invention adopts a structural form in which the magnetic core sleeve and the magnetic core are inserted and fitted together, avoiding the direct adsorption of ferromagnetic core particle impurities on the magnetic core. After the magnetic core is taken out of the magnetic core sleeve, due to the loss of the magnetic core, the ferromagnetic core particle impurities adsorbed on the outer surface of the magnetic core sleeve are easily detached, thus greatly facilitating the cleaning and maintenance of the filter; the magnetic core holder and the magnetic core are inserted and pressed inside the filter, and the filter element is inserted. There are no fasteners inside the filter, and there is no risk of fastener detachment, so the reliability is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front view of the present invention;

[0017] Figure 2 is Figure 1 the A-A cross-sectional view of

[0018] Figure 3 is the drawing view of the present invention;

[0019] Figure 4 is the three-dimensional structure schematic diagram of the present invention;

[0020] Figure 5 is the schematic diagram of the magnetic core holder of the present invention;

[0021] Figure 6 is the schematic diagram of the magnetic core of the present invention;

[0022] Figure 7 is the schematic diagram of the filter element of the present invention, 7a, front view, 7b, three-dimensional view, 7c, filter screen assembly view;

[0023] Figure 8 is the schematic diagram of the oil level gauge structure of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0024] The structure of the present invention will be further described below with reference to the drawings and through embodiments. It should be noted that this embodiment is narrative rather than restrictive.

[0025] A magnetic oil filter before the pump, please refer to Figures 1-8 , and its inventive points are: mainly including a filter tank body 1, a partition plate 9, a pressing frame 10, a liquid level observation assembly, an upper cover 2, an oil level gauge 3, a magnetic core holder 4, an oil injection port 5, a magnetic core 6, a filter element 7, a drain plug 8, etc.

[0026] The filter tank body is a vertically arranged tank body. An oil inlet is arranged at the lower end of the filter element tank body, and an oil outlet is arranged at the side part. A partition mounting port is arranged at a position near the upper end of the filter element tank body, and a pressure frame connection part is arranged at the side of the partition mounting port. The pressure frame connection part is a horizontal plate connected to the inside of the filter tank body. An articulated seat is arranged at a position near the middle of the upper end of the pressure frame connection part for forming a hinge connection with one side of the pressure frame. A sealing ring mounting groove is arranged on the upper edge of the upper end of the filter tank body for mounting a sealing ring to achieve sealing with the upper cover. A circle of locking part mounting seats is uniformly arranged along the circumferential direction on the outer side of the upper end of the filter tank body for mounting locking parts to achieve locking and fixing of the upper cover to the upper end of the filter tank body. The locking part mounting seat is composed of two parallel vertical plates, and left and right coaxial mounting holes are vertically arranged on the two vertical plates. The mounting locking part is composed of a screw rod with a pin shaft vertically connected to the lower end, a nut with a handle connected to the upper end of the screw rod, and a pressing plate. The pin shaft at the lower end of the screw rod is rotatably inserted into the mounting hole on the corresponding locking part mounting seat. The upper end part of the screw rod passes through the pressing plate and is connected to the nut arranged on the upper end of the pressing plate. The pressing plate presses on the upper cover to tightly press the sealing plate on the upper end of the filter tank body. Guide rails 11 are symmetrically arranged at positions on both sides near the oil outlet on the inner wall of the filter tank body, and vertical guide grooves are arranged on the guide rails for installing the filter element. Partition support columns are welded at positions on both sides of the inner wall of the filter tank body corresponding to the lower part of the partition mounting port to support the partition.

[0027] The liquid level observation assembly is used to install the oil level gauge. The liquid level observation assembly is arranged outside the filter tank body and includes a scale insertion tube 13 arranged vertically. The scale insertion tube is fixed to the outside of the filter tank body through an insertion tube seat. The scale insertion tube is made of a transparent material. A connected horizontal tube is fixed to the lower end of the scale insertion tube. The outer end of the horizontal tube is closed, and the inner end is inserted into the inner cavity of the filter tank body and communicated with the inner cavity of the filter tank body.

[0028] The partition is used to install the magnetic core racks at intervals in rows. The shape of the partition body is the same as that of the partition mounting port. A plurality of long slot holes for installing magnetic core racks are uniformly arranged on the partition along the direction parallel to the edge of the pressure frame connection part for installing magnetic core racks. The partition is embedded at the partition mounting port of the filter tank body, and its lower end is supported by the partition support column.

[0029] The pressure frame adopts a frame-shaped support. One end of the frame-shaped support is provided with a hinge part, and the other end is provided with a handle. The pressure frame is integrally arranged on the upper end of the partition. Its hinge part cooperates with the hinge seat on the pressure frame connection part and is penetrated with a pin shaft 12 to form a hinge connection, and the pressure frame can be lifted and lowered around the hinge shaft.

[0030] The core holder 4 is used to achieve the insertion of multiple cores. The core holder 4 is welded by a seat plate 41, a handle 42, a frame 43, and core sleeves 44. The handle is arranged at the middle position of the upper end of the seat plate. The frame is arranged at the lower end of the seat plate and is fixedly connected to the edge of the lower end of the seat plate. There are multiple core sleeves. The upper ends of the multiple core sleeves are fixedly installed through the seat plate, and the lower parts of the multiple core sleeves are fixedly installed through the bottom of the frame.

[0031] According to the sizes of multiple partition installation openings on the partition, configure multiple core holders of different sizes, and insert the multiple core holders into the corresponding-sized partition installation openings one by one.

[0032] The core 6 includes a handle 61 and a steel sleeve 64 welded to the lower end of the handle. A magnetic material and a magnetically conductive sheet are arranged in the steel sleeve. The magnetic material 62 and the magnetically conductive sheet 63 are alternately stacked and assembled along the axial direction of the steel sleeve. It is required that the surface magnetic induction intensity of all magnetic poles after assembly is not less than 9500 gauss, and the average value is not lower than 10000 gauss. The core is inserted into the core sleeve in such a way that the handle is exposed outside the upper end of the seat plate.

[0033] The handle of the upper cover presses the pressing frame, and the pressing frame presses tightly against the upper end of the seat plate of the core holder, thereby tightly pressing the core holder and the filter element.

[0034] The filter element 7 adopts a plate structure and is composed of a skeleton assembly 71, a filter screen assembly 72, and fasteners. The skeleton assembly adopts a square frame structure. The four sides of the filter screen assembly 72 are fixedly installed on the skeleton assembly 72 with screws. The convex platforms on the left and right sides of the skeleton assembly 71 are inserted into the vertical guide grooves of the left and right inner walls of the filter tank body. The filter element covers the area of the oil outlet on the filter tank body.

[0035] The filter screen assembly 72 is composed of a screen frame and a filter screen 724. The screen frame is composed of a filter screen upper frame plate 721, a filter screen lower frame plate 725, a filter screen left frame plate 726, a filter screen right frame plate 723, and 4 corner codes 722. The filter screen upper frame plate, the filter screen lower frame plate, the filter screen left frame plate, and the filter screen right frame plate are spliced into a square frame and are fixedly connected at the four corner parts through four corner codes and screws. The filter screen is a pleated plate structure to increase the filtration area. The precision of the filter screen is generally 40 - 60 meshes. The filter screen 724 is adhered to the inside of the screen frame with white glue.

[0036] The oil level gauge 3 is inserted into the gauge insertion tube from top to bottom and is threadedly connected to the gauge insertion tube. There are scales on the oil level gauge for monitoring the oil level. When the liquid level is too low, oil is injected into the filter through the upper oil injection port 5 above to avoid the pump group sucking air.

[0037] The oil injection port 5 is arranged on the upper cover. The drain plug is installed at a position close to the lower end on the side wall of the filter tank body for draining oil.

[0038] In addition, a plurality of mounting seats are fixedly distributed in a circumferential square manner at a position near the lower end on the outer side wall of the partition filter tank body. Mounting holes are provided on the mounting seats for installing and fixing the magnetic oil filter in front of the pump at the use site.

[0039] The working principle of the magnetic oil filter in front of the pump of the present invention is as follows:

[0040] During operation, the oil fluid enters through the oil inlet on the filter tank body, first passes through the row of magnetic core holders 4, and the ferromagnetic core particle impurities in the lubricating oil are firmly adsorbed on the surface of the thin steel sleeve on the magnetic core holder 4. Then, it passes through the filter element 7 to further intercept the solid impurity particles in the lubricating oil. The oil level gauge is used to monitor the oil fluid level. When the level is too low, oil is injected into the filter tank body through the oil injection port 5 above to avoid air suction by the pump set.

[0041] Although embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art can understand that various substitutions, changes, and modifications are possible without departing from the spirit of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the content disclosed in the embodiments and drawings.

Claims

1. A magnetic oil filter before the pump, characterized in that: It includes a filter tank body, a partition board, a pressing frame, an upper cover, a magnetic core frame, a magnetic core and a filter element; An oil inlet is arranged at the lower end of the filter element tank body, and an oil outlet is arranged at the side part; a partition board installation opening is arranged at a position near the upper end of the filter element tank body, and a pressing frame connection part is arranged at the side part of the partition board installation opening; the partition board is embedded at the partition board installation opening and supported on a partition board support column arranged on the inner side of the filter element tank body; a plurality of long slot holes are uniformly arranged on the partition board along the direction parallel to the edge of the pressing frame connection part; a group of magnetic core frames are inserted into each long slot hole, and a plurality of vertically arranged magnetic core sleeves are uniformly arranged on each group of magnetic core frames, and a magnetic core is inserted into each magnetic core sleeve; the pressing frame is arranged at the upper end of the partition board, one end of the pressing frame is hingedly connected to the upper end of the pressing frame connection part, a handle is arranged at the other end of the pressing frame, and the upper cover is hermetically fixed at the upper port position of the filter element tank body, and the lower end of the upper cover is in pressing contact with the handle of the pressing frame, so that the lower end of the pressing frame presses the magnetic core frame and the magnetic core; Guide rails are symmetrically arranged on the inner wall of the filter tank body at positions on both sides near the oil outlet, and vertical guide grooves are arranged on the guide rails; the filter element is inserted and matched with the vertical guide grooves on the guide rails on both sides and is arranged offset from the oil inlet on the filter element tank body.

2. The magnetic oil filter before the pump according to claim 1, characterized in that It also includes a liquid level observation component, an oil level gauge, an oil filling port and an oil drain plug; the liquid level observation component is arranged outside the filter tank body and includes a scale insertion tube arranged vertically. The scale insertion tube is fixed to the outside of the filter tank body through an insertion tube seat. The scale insertion tube is made of a transparent material. A connected horizontal tube is fixed at the lower end of the scale insertion tube. The outer end of the horizontal tube is closed, and the inner end is inserted into the inner cavity of the filter tank body and communicated with the inner cavity of the filter tank body; the oil level gauge is inserted into the scale insertion tube; the oil filling port is arranged on the upper cover, and the oil drain plug is installed at a position near the lower end of the side wall of the filter tank body.

3. The magnetic oil filter before the pump according to claim 1, wherein: The magnetic core frame is welded by a seat plate, a handle, a frame and the magnetic core sleeve; the handle is arranged at the middle position of the upper end of the seat plate, the frame is arranged at the lower end of the seat plate and is fixedly connected with the edge of the lower end of the seat plate; the upper ends of a plurality of magnetic core sleeves are fixedly installed through the seat plate, and the lower parts of a plurality of magnetic core sleeves are fixedly installed through the bottom of the frame.

4. The magnetic oil filter before the pump according to claim 1, wherein: The magnetic core includes a handle and a steel sleeve welded to the lower end of the handle. A magnetic material and a magnetic conductive sheet are arranged in the steel sleeve. The magnetic material and the magnetic conductive sheet are alternately stacked and assembled along the axial direction of the steel sleeve to form a multi-magnetic pole structure, and the surface magnetic induction intensity of all magnetic poles is not less than 9500 gauss, and the average value is not less than 10000 gauss; the magnetic core is inserted into the magnetic core sleeve with the handle exposed outside the upper end of the seat plate.

5. The magnetic oil filter before the pump according to claim 1, characterized in that: The filter element adopts a plate structure and is composed of a skeleton component and a filter screen component fixed on the skeleton component. The skeleton component adopts a square frame structure. The convex platforms on the left and right sides of the skeleton component are inserted into the vertical guide grooves of the left and right guide rails on the inner wall of the filter tank body, and the filter element covers the area of the oil outlet on the filter tank body; The filter screen assembly is composed of a screen frame and a filter screen. The screen frame is composed of an upper filter screen frame plate, a lower filter screen frame plate, a left filter screen frame plate, a right filter screen frame plate and 4 corner codes. The upper filter screen frame plate, the lower filter screen frame plate, the left filter screen frame plate and the right filter screen frame plate are spliced into a square frame, and are fixedly connected at the four corner parts respectively through a corner code and a screw. The filter screen is of a pleated plate structure, and the precision of the filter screen is 40-60 meshes. The filter screen is adhered to the inside of the screen frame.

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