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CN-121988093-A - Filtering device for electric spark engine oil circulation and filtering method thereof

CN121988093ACN 121988093 ACN121988093 ACN 121988093ACN-121988093-A

Abstract

The invention relates to the technical field of electric spark engine oil filtration, and discloses a filtering device for electric spark engine oil circulation and a filtering method thereof, wherein the filtering device comprises a communication end head and a filter cartridge, the communication end head is fixedly arranged at the top of the filter cartridge, a first filter element is arranged in the filter cartridge, both ends of the first filter element are provided with first protective shells, and the inner side of the first protective shell at the bottom of the first filter element is provided with a separation tube.

Inventors

  • GAO XING
  • SHI WEI
  • CHEN YADONG
  • DING ZHIPENG

Assignees

  • 南通格美工业数控设备有限公司

Dates

Publication Date
20260508
Application Date
20260401

Claims (10)

  1. 1. The utility model provides a filter equipment is used in electric spark machine oil circulation, including intercommunication end (1) and cartridge filter (2), intercommunication end (1) fixed mounting is at the top of cartridge filter (2), the inside of cartridge filter (2) is provided with first filter core (5), the both ends of first filter core (5) all are provided with first protective housing (6), the inboard of first protective housing (6) in first filter core (5) bottom is provided with separating tube (7), leave the space between first filter core (5) and cartridge filter (2) and be used for the machine oil to flow, its characterized in that, the bottom threaded connection of cartridge filter (2) has auxiliary filtration mechanism (3); Auxiliary filtering mechanism (3) are including vice barrel (31), the top and the cartridge filter (2) threaded connection of vice barrel (31), the inside of vice barrel (31) is provided with second filter core (33), the intercommunication has backflow pipeline (35) between vice barrel (31) and the intercommunication end (1), the intercommunication department of vice barrel (31) and cartridge filter (2) is provided with shutoff mechanism (34), shutoff mechanism (34) are located the below of first protective housing (6), and the axis of shutoff mechanism (34) coincides with the axis of separating tube (7), the edge of cartridge filter (2) is provided with locking mechanical system (4), locking mechanical system (4) are used for controlling the closure of shutoff mechanism (34), after first filter core (5) filtration pore is stopped up, engine oil down oppression shutoff mechanism (34) open the passageway that gets into vice barrel (31), bypass in first filter core (5) get into vice barrel (31), flow back through backflow pipeline (35) after being filtered by second filter core (33).
  2. 2. The filtering device for electric spark engine oil circulation according to claim 1, wherein the junction of the filter cartridge (2) and the auxiliary cylinder body (31) is provided with a communication hole (38), the blocking mechanism (34) is located inside the communication hole (38), the blocking mechanism (34) comprises a blocking block (341) and a supporting plate (342), the blocking block (341) is slidably arranged at the bottom of the filter cartridge (2), the supporting plate (342) is fixedly arranged on the inner wall of the communication hole (38), and the supporting plate (342) is located above the blocking block (341).
  3. 3. The filtering device for electric spark engine oil circulation according to claim 2, wherein a positioning tube (343) is arranged on the upper surface of the center of the supporting plate (342), an oil passing hole (347) is formed in the supporting plate (342), the oil passing hole (347) is located at the edge of the positioning tube (343), the blocking block (341) is sleeved at the top of the positioning tube (343), and a first spring (344) is fixedly connected between the blocking block (341) and the supporting plate (342).
  4. 4. The filtering device for electric spark engine oil circulation according to claim 3, wherein the first spring (344) is disposed at an inner side of the positioning tube (343), an extension plate (345) is disposed at an outer side edge of a top of the positioning tube (343), a receiving groove (346) is formed in the plugging block (341), a shape of the receiving groove (346) is adapted to the extension plate (345), and one end of the first spring (344) is fixedly connected to an inner wall of the receiving groove (346).
  5. 5. The filtering device for electric spark engine oil circulation according to claim 2, wherein the locking mechanism (4) comprises a mounting connection block (41), a miniature electric cylinder (42) and a blocking rod (45), the blocking rod (45) is slidably arranged in the filter cylinder (2), the blocking rod (45) is located on the side face of the plugging block (341), the mounting connection block (41) is fixedly mounted on the outer wall of the filter cylinder (2), the miniature electric cylinder (42) is fixedly mounted at the end portion of the mounting connection block (41), and a piston rod of the miniature electric cylinder (42) is fixedly connected with the blocking rod (45).
  6. 6. The electric spark machine oil circulation filtering device according to claim 5, wherein a cavity (44) is formed in the installation connecting block (41), a limiting plate (43) is arranged at the joint of the piston rod of the miniature electric cylinder (42) and the blocking rod (45), the limiting plate (43) is slidably arranged in the cavity (44), a second spring (46) is fixedly connected between the limiting plate (43) and the filter cylinder (2), and the second spring (46) is sleeved on the outer wall of the blocking rod (45).
  7. 7. The filtering device for electric spark engine oil circulation according to claim 1, wherein a second protective housing (36) is arranged on the outer wall of the second filter element (33), the second protective housing (36) covers the outer surface of three fifths of the second filter element (33), one side of the second protective housing (36) is fixedly connected with a secondary housing (361), the secondary housing (361) covers the outer surface of one fifth of the second filter element (33), and the secondary housing (361) is clamped on the inner wall of the secondary cylinder (31).
  8. 8. The filtering device for electric spark engine oil circulation according to claim 7, wherein an inflow port (363) is provided between the bottom of the second protective case (36) and the sub-case (361), a filling block (362) is provided at the top of the second protective case (36), an outflow port (364) is provided between the filling block (362) and the sub-case (361), and the communicating portion between the return pipe (35) and the sub-case (31) is disposed at the same height as the outflow port (364).
  9. 9. The filtering device for electric spark engine oil circulation according to claim 1, characterized in that the bottom of the secondary cylinder body (31) is fixedly provided with a servo motor (32), the inside of the secondary cylinder body (31) is provided with a guide mechanism (37), the guide mechanism (37) comprises a movable rod (371) and a blocking plate (372), the movable rod (371) is arranged on the axis of the secondary cylinder body (31), the blocking plate (372) is fixedly arranged at the top of the movable rod (371), the bottom of the inner side wall of the separation tube (7) is provided with an annular protruding strip, the blocking plate (372) is positioned at the inner side of the separation tube (7), the blocking plate (372) is lapped on the upper surface of the annular protruding strip, the movable rod (371) penetrates through a supporting plate (342), a transmission rod (373) is connected with internal threads of the movable rod (371), the end of the transmission rod (373) is provided with a thread groove, and one end of the transmission rod (373) is fixedly connected with an output shaft of the servo motor (32).
  10. 10. The filtering method of the filtering device for the electric spark engine oil circulation is characterized by comprising the following steps of: The method comprises the steps of firstly, communicating a liquid inlet end of a communicating end head (1) with an engine oil output pump, communicating a liquid outlet end of the communicating end head (1) with an engine oil sucking pump, and installing an auxiliary cylinder body (31) at the bottom of a filter cylinder (2); Step two, starting an engine oil output pump to input used engine oil into a filter cartridge (2), filtering the engine oil by a first filter element (5), entering a separation pipe (7), pumping the engine oil in the filter cartridge (2) out by an engine oil suction pump, and sending the engine oil back to processing equipment for recycling, wherein a piston rod of a miniature electric cylinder (42) is in a contracted state, and a blocking rod (45) is positioned on the side surface of a blocking block (341); step three, after the impurities in the engine oil block the first filter element (5), the engine oil can not enter the separation pipe (7), the blocking block (341) is pushed downwards to expose the communication hole (38), at the moment, the piston rod of the miniature electric cylinder (42) extends out, the blocking rod (45) is pushed to move to the position above the blocking block (341), the engine oil enters the auxiliary cylinder body (31) from the communication hole (38), after being filtered by the second filter element (33), enters the communication end (1) through the backflow pipeline (35), and is continuously sent back to the processing equipment for recycling; Step four, in the process of using the auxiliary filtering mechanism (3), the engine oil sucking pump and the servo motor (32) synchronously operate, wherein the engine oil sucking pump is started and closed at regular time, when the engine oil sucking pump operates, the servo motor (32) drives the transmission rod (373) to push the movable rod (371) to move upwards, the blocking plate (372) is moved to be close to the lower part of the connecting part of the backflow pipeline (35) and the communication end (1), the separation pipe (7) is completely blocked, filtered engine oil is completely circulated to the processing device, when the engine oil sucking pump stops operating, the servo motor (32) continues to drive the transmission rod (373) to move the blocking plate (372) to the upper part of the connecting part of the backflow pipeline (35) and the communication end (1), so that the filtered engine oil flows back to the separation pipe (7) for reversely flushing the first filter element (5); and fifthly, after the first filter element (5) is reversely flushed until the filtering effect is recovered, the piston rod of the miniature electric cylinder (42) is contracted, the blocking rod (45) is separated from the blocking block (341), the blocking block (341) is pushed back into the filter cylinder (2) by the first spring (344), the auxiliary cylinder body (31) is removed after the communication hole (38) is blocked, the second filter element (33) is taken out to clean scraps, and the filter cylinder (2) continues to filter engine oil.

Description

Filtering device for electric spark engine oil circulation and filtering method thereof Technical Field The invention belongs to the technical field of electric spark engine oil filtration, and particularly relates to a filtering device and a filtering method for electric spark engine oil circulation. Background The electric spark machine is a special machining method for removing conductive material by utilizing the electric erosion effect generated by pulse discharge between two poles immersed in working fluid, and in the process of using the electric spark machine, engine oil is used as working medium to play the roles of insulation, cooling, chip removal and arc extinction. The electric spark machine oil filtering device is a key device for removing impurities such as metal scraps, carbon residues and the like in machine oil in electric spark machining, stabilizing the insulation and cooling performance of oil liquid, and guaranteeing the machining precision and the service life of equipment. If grant the bulletin number CN120733871B, grant the bulletin day 2025 and 10 month 31 day, the name is a cooling oil filter equipment of electric spark machine's patent, including last barrel, lower barrel, motor storehouse, chuck, filter core, extensible member, ring dish, ring one, deflector, scraper blade, cleaning brush, be provided with the pulling assembly on the ring dish, be provided with the expansion subassembly between riser and the deflector, still be provided with drive assembly in the last barrel, drive assembly is used for driving ring one and rotates to drive the scraper blade and clean the filter core lateral surface to last barrel inner wall and cleaning brush. The device can be used independently, can also be used with an electric spark machine in a combined way, has increased functionality, can feed oil through multiple nozzles, greatly improves the efficiency of filtering cooling oil, can be self-cleaned, and has good cleaning effect and low use cost. When filter equipment adopts filter core formula filtration to filter electric spark machine oil, because superfine carbon sediment that can produce during electric spark processing, carbon sediment can mix in electric spark machine oil gets into filter equipment's filter core together, carbon sediment is easy to adhere and is formed the filter cake on filter core filtration pore surface when filtering, and iron fillings granule also can the jamming filtration pore, lead to the filtration pore to be plugged, prior art is through setting up the bypass valve in filter equipment, when appearing filter core and blockking up, the bypass valve is opened, machine oil just does not pass the filter core, directly pass the bypass valve and flow back to equipment, this in-process, machine oil is not filtered completely, this kind of machine oil that contains impurity and metal chip recirculates to processingequipment, can cause wearing and tearing to the device. Disclosure of Invention The invention provides a filtering device for electric spark engine oil circulation and a filtering method thereof, which solve the technical problem that engine oil containing impurities and metal chips is recirculated to a processing device and can cause abrasion to an engine because engine oil directly flows back to equipment through a bypass valve without passing through a filter element after the filter element is blocked in the related art. The invention provides a filtering device for electric spark engine oil circulation, which comprises a communication end head and a filtering barrel, wherein the communication end head is fixedly arranged at the top of the filtering barrel, a first filter element is arranged in the filtering barrel, first protection shells are arranged at two ends of the first filter element, a separation pipe is arranged at the inner side of the first protection shell at the bottom of the first filter element, a gap is reserved between the first filter element and the filtering barrel for engine oil flowing, and an auxiliary filtering mechanism is connected at the bottom of the filtering barrel through threads; The auxiliary filtering mechanism comprises an auxiliary cylinder body, the top end of the auxiliary cylinder body is in threaded connection with the filter cylinder, a second filter element is arranged in the auxiliary cylinder body, a backflow pipeline is communicated between the auxiliary cylinder body and the communicating end, a blocking mechanism is arranged at the communicating position of the auxiliary cylinder body and the filter cylinder, the blocking mechanism is located below the first protective shell, the axis of the blocking mechanism coincides with the axis of the separation pipe, a locking mechanism is arranged at the edge of the filter cylinder, the locking mechanism is used for controlling the blocking mechanism to be closed, after a filter hole of the first filter element is blocked, engine oil downwards presses the blocki