Hydraulic oil filtering device for hydraulic equipment

Abstract

The invention discloses a hydraulic oil filtering device for hydraulic equipment, which relates to the technical field of hydraulic oil filtering and comprises a base, a base plate, a fixed half shell, a movable half shell and the like. The fixed half shell is provided with a through nozzle body, a lower ring seat, a baffle ring, a circular ring plate and the like, a filter element is inserted into the baffle ring, the movable half shell is tightly matched with the fixed half shell, and hydraulic oil is circularly filtered through an oil pump. According to the device, the cleaning cylinder is innovatively designed, the cleaning cylinder rotates around the filter element and turns over through gear transmission, the filter element is automatically cleaned, and the filtering efficiency is improved. Meanwhile, by means of structures such as the screw and the three supporting plates, unlocking of the movable half shell and the fixed half shell and unlocking of the filter element can be achieved by rotating the rotary disc, and replacement is convenient. In addition, a communicating device and a sealing rod are arranged, so that hydraulic oil can be prevented from leaking when the device is opened. The filtering device is high in automation degree and good in sealing performance, and effectively solves the problems that an existing filtering device is prone to blockage, a filter element is tedious to replace, and oil leaks easily.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic oil filtration, and more particularly to a hydraulic oil filtration device for hydraulic equipment. Background Art

[0002] During the operation of hydraulic equipment, various impurities gradually mix into the hydraulic oil, affecting the performance and lifespan of the hydraulic equipment. Therefore, the hydraulic oil needs to be filtered. Existing hydraulic oil filtering devices are mostly simple in structure and have a single function. During the filtration process, the filter element easily becomes clogged, resulting in reduced filtration efficiency. Replacing the filter element is cumbersome and often requires stopping the hydraulic equipment, affecting production efficiency. Furthermore, when the filter device is opened to replace the filter element, the hydraulic oil easily leaks, causing waste and environmental pollution. Therefore, there is a need for a hydraulic oil filtering device that can automatically clean the filter element, facilitate filter element replacement, and prevent hydraulic oil leakage. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the present invention aims to provide a hydraulic oil filtering device for hydraulic equipment.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: a hydraulic oil filter device for hydraulic equipment, comprising a base, a base plate is vertically provided above the base, a solid half-shell is fixedly provided on the base plate, a movable half-shell is tightly provided on the side of the solid half-shell, a nozzle body is penetrated above the solid half-shell, a middle hole is provided in the middle part of the nozzle body, a sliding guide tube is provided in the lower ring seat of the nozzle body, a circular ring plate is provided at the bottom of the solid half-shell, a liquid outlet pipe is connected to the bottom of the solid half-shell, and a liquid outlet hole connected to the liquid outlet pipe is provided at the bottom of the circular ring plate, the liquid outlet pipe is connected to the inlet of the oil pump, and the oil pump is fixed on the base; a lower ring seat is fixed inside the solid half-shell and above the circular ring plate, and a space is provided between the lower ring seat and the circular ring plate. The seal is tight, a circular hole is provided in the center of the lower ring seat, and a retaining ring is vertically provided around the circular hole of the lower ring seat, the circular hole diameter of the lower ring seat is smaller than the inner wall diameter of the retaining ring, and the inner wall of the retaining ring is sealedly inserted with a filter element, and a swivel is rotatably provided on the outer wall of the retaining ring, and an upper retaining ring is rotatably provided on the outer wall of the swivel, and the upper retaining ring is fixed on the inner wall of the solid half shell, and a gear 1 is provided on the outer wall of the swivel, and the gear 1 is located between the lower ring seat and the upper retaining ring, and a side groove flush with the gear 1 is provided on the side of the solid half shell; two cleaning cylinders for cleaning the filter element are rotatably provided above the swivel, and a gear 2 is provided on the top of the cleaning cylinder, and the two gears 2 are engaged with an inner gear ring, and the inner gear ring is fixed on the inner wall of the solid half shell.

[0005] As a preferred technical solution of the present invention, a motor is fixedly provided on the base plate, and a gear three is provided on the rotating shaft of the motor, and a gear four is meshed on the side of the gear three. The gear four is fixed on the main shaft, and the main shaft is rotatably provided on the base plate. A central circular table is provided in the middle part of the main shaft, and four insertion rods are slidably provided on the central circular table. A spring one is provided on the outer sleeve of the central circular table, and the two ends of the spring one are respectively connected to the central circular table and the insertion rod; a gear five is rotatably provided on the base plate, and the gear five passes through the side groove and meshes with the gear one. A circular hole is provided in the middle of the gear five for the main shaft to pass through, and four pin holes are provided on the gear five for inserting the bottom of the insertion rod.

[0006] As a preferred technical solution of the present invention, a screw is rotatably provided at the top of the solid half shell, a turntable is provided at the top of the screw, the screw is threadedly connected to the three support plates, the first end of the three support plates is fixedly connected to the sliding guide tube, and the sliding guide tube and the middle hole form a sliding fit along the vertical direction, an auxiliary guide tube is provided at the bottom of the sliding guide tube, and multiple side holes are provided around the auxiliary guide tube.

[0007] As a preferred technical solution of the present invention, a locking rod is provided on the side of the first end of the three support plates, and an L-shaped rod for locking by the locking rod is provided on the upper end of the nozzle body.

[0008] As a preferred technical solution of the present invention, a pressure plate for fixing the filter element is provided at the bottom of the secondary conduit.

[0009] As a preferred technical solution of the present invention, the top of the main shaft is provided with baffle plate 1 and baffle plate 2 in sequence, the second ends of the three support plates form a sliding fit with the main shaft, the second ends of the three support plates are located between baffle plate 1 and gear 1, and the outer sleeve of the main shaft is provided with spring 2, and the two ends of spring 2 are respectively connected to the base plate and baffle plate 1.

[0010] As a preferred technical solution of the present invention, the bottom of the main shaft is connected to bevel gear 1, and bevel gear 2 is provided on the side of bevel gear 1. Bevel gear 2 is fixed to one end of the cross bar, and the cross bar is rotatably provided on the base plate. Bevel gear 3 is provided at the other end of the cross bar, and bevel gear 4 is internally meshed on the side of bevel gear 3. Bevel gear 4 is fixed on the rotating shaft, and the rotating shaft is rotatably provided at the bottom of the fixed half shell, and the rotating shaft is fixedly connected to the bottom of the movable half shell.

[0011] As a preferred technical solution of the present invention, an upper through hole and a lower through hole are provided on the side wall of the solid half shell, a connecting hole coinciding with the lower through hole is provided on the circular ring plate, the upper through hole is located above the upper retaining ring, and the lower through hole is located below the lower ring seat, and a connector is provided on the outer side wall of the solid half shell, the connector is provided with a long connecting hole in the vertical direction, and a connecting hole 1 and a connecting hole 2 connected to the long connecting hole are provided on the side of the connector, and the connecting hole 1 and the connecting hole 2 are connected to the upper through hole and the lower through hole respectively; As a preferred technical solution of the present invention, a sealing rod is slidably provided in the long connecting hole of the coupler, and the sealing rod is connected to the third section of the three supporting plates.

[0012] The beneficial effects of the present invention compared with the prior art are: (1) The present invention provides a cleaning cylinder, a rotating ring and other structures, and utilizes gear transmission to make the cleaning cylinder rotate around the filter element while performing a turnover motion, thereby being able to comprehensively clean the outer wall of the filter element and remove impurities, thereby effectively improving the efficiency of hydraulic oil filtration, extending the service life of the filter element, and reducing the frequency of filter element replacement.

[0013] (2) The present invention uses the coordination of the screw, three-bracket structure, and other structures. Rotating the turntable causes the three-bracket to drive the sliding conduit and the auxiliary conduit upward. The side hole in the auxiliary conduit moves into the middle hole of the nozzle body, and the middle hole blocks the side hole, so that the hydraulic oil no longer flows out of the side hole. At the same time, the movable half shell and the fixed half shell are unlocked, and the pressure plate and the filter element are separated, making it convenient to remove the filter element from the retaining ring for replacement. The operation is simple and convenient, and does not require complicated tools and steps.

[0014] (3) The present invention is provided with a connector, a sealing rod and other structures. When the movable half shell and the fixed half shell are opened, the sealing rod rises with the three support plates, so that the connecting hole 1, the long connecting hole and the connecting hole 2 are connected in sequence. The hydraulic oil above the swivel can flow into the circular ring plate through the connector and then be transported to the hydraulic equipment through the oil pump, thereby avoiding leakage of hydraulic oil when opening, reducing waste and environmental pollution.

[0015] (4) The present invention utilizes structures such as a motor, a gear transmission, and a bevel gear transmission to realize functions such as automatic rotation of the cleaning cylinder and automatic opening and closing of the movable half shell, thereby reducing manual operations, improving the degree of automation and working efficiency of the device, and reducing labor intensity.

[0016] (5) In the present invention, sealing rings are provided between the fixed half shell and the movable half shell, between the rotating ring and the upper retaining ring, and between the rotating ring and the retaining ring, etc., to ensure that the hydraulic oil will not leak during the operation of the device, thereby ensuring the stable operation of the hydraulic equipment and improving the reliability and safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the present invention as a whole.

[0018] Figure 2 It is a structural schematic diagram of the overall cross-section of the present invention.

[0019] Figure 3 This is a schematic structural diagram of the filter element installation of the present invention.

[0020] Figure 4 It is a structural schematic diagram of the solid half shell and the nozzle body of the present invention.

[0021] Figure 5 It is a structural schematic diagram of the circular ring plate of the present invention.

[0022] Figure 6 This is a schematic structural diagram of the installation of the cleaning cartridge of the present invention.

[0023] Figure 7 It is a schematic structural diagram of the explosion of the lower ring seat, rotating ring and upper retaining ring of the present invention.

[0024] Figure 8 This is a schematic structural diagram of the three-support plate installation of the present invention.

[0025] Figure 9 for Figure 8 A partial enlarged view of point A in the middle.

[0026] Figure 10 for Figure 8 A partial enlarged view of point B in the middle.

[0027] Figure 11 Schematic diagram of the structure of gear five of the present invention.

[0028] Figure 12 This is a structural diagram of the rotating shaft installation of the present invention.

[0029] Figure 13 This is a structural diagram of the sealing rod installation of the present invention.

[0030] Figure 14 for Figure 13 A partial enlarged view of point C in the middle.

[0031] Figure 15 Schematic diagram of the structure of the coupler of the present invention.

[0032] Reference numerals: 1-base; 2-base plate; 3-solid half shell; 301-side groove; 302-upper through hole; 303-lower through hole; 4-movable half shell; 5-mouth body; 501-middle hole; 6-sliding guide tube; 7-circular ring plate; 701-liquid outlet hole; 702-connecting hole; 8-liquid outlet pipe; 9-oil pump; 10-lower ring seat; 11-retaining ring; 12-filter element; 13-swivel; 14-upper retaining ring; 15-gear 1; 16-cleaning cylinder; 17-gear 2; 18-inner ring; 19-motor; 20-gear 3; 21-main shaft; 22-gear 4; 23-middle Round table; 24-insertion rod; 25-spring one; 26-gear five; 2601-round hole; 2602-pin hole; 27-screw; 28-turntable; 29-three-support plate; 30-auxiliary guide tube; 3001-side hole; 31-locking rod; 32-L-shaped rod; 33-pressure plate; 34-blocking plate one; 35-blocking plate two; 36-spring two; 37-bevel gear one; 38-bevel gear two; 39-cross bar; 40-bevel gear three; 41-bevel gear four; 42-rotating shaft; 43-connector; 4301-long connecting hole; 4302-connecting hole one; 4303-connecting hole two; 44-sealing rod. DETAILED DESCRIPTION

[0033] In the present invention, unless otherwise specified, directions such as "up" and "down" are generally used with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0034] Example: See Figure 1-15 Structural schematic diagram, the present invention provides the following technical solutions: A hydraulic oil filtering device for hydraulic equipment includes a base 1, a base plate 2 is vertically provided above the base 1, a solid half shell 3 is fixedly provided on the base plate 2, a movable half shell 4 is tightly provided on the side of the solid half shell 3, a nozzle body 5 is provided through the top of the solid half shell 3, a middle part of the nozzle body 5 is provided with a center hole 501, a sliding guide tube 6 is provided in the center hole 501, a circular ring plate 7 is provided at the bottom of the solid half shell 3, a liquid outlet pipe 8 is connected to the bottom of the solid half shell 3, and a liquid outlet hole 701 connected to the liquid outlet pipe 8 is provided at the bottom of the circular ring plate 7, the liquid outlet pipe 8 is connected to the inlet of an oil pump 9, and the oil pump 9 is fixed on the base 1.

[0035] A lower ring seat 10 is fixedly provided inside the solid half shell 3 and above the circular ring plate 7. The lower ring seat 10 and the circular ring plate 7 are tightly sealed. A circular hole is provided in the center of the lower ring seat 10, and a retaining ring 11 is vertically provided around the circular hole of the lower ring seat 10. The diameter of the circular hole of the lower ring seat 10 is smaller than the inner wall diameter of the retaining ring 11. A filter element 12 is sealingly inserted into the inner wall of the retaining ring 11. A swivel 13 is rotatably provided on the outer wall of the retaining ring 11. An upper retaining ring 14 is rotatably provided on the outer wall of the swivel 13. The upper retaining ring 14 is fixed on the inner wall of the solid half shell 3. A gear 15 is provided on the outer wall of the swivel 13, and the gear 15 is located between the lower ring seat 10 and the upper retaining ring 14. A side groove 301 flush with the gear 15 is provided on the side of the solid half shell 3.

[0036] When the movable half shell 4 and the solid half shell 3 are closed, the solid half shell 3 and the movable half shell 4 are tightly sealed, and a multi-layer sealing gasket is provided inside the movable half shell 4, so that the movable half shell 4 is in close contact with the circular ring plate 7, the lower ring seat 10, and the upper retaining ring 14 respectively.

[0037] Among them, the filter core 12 is a cylindrical structure, and the diameter of the center hole of the filter core 12 is smaller than the diameter of the circular hole of the lower ring seat 10. When the filter core 12 is inserted into the interior of the retaining ring 11, the inner wall of the retaining ring 11 is provided with a sealing ring, so that the retaining ring 11 and the filter core 12 are tightly sealed, and the bottom of the filter core 12 contacts the upper surface of the lower ring seat 10, so that the lower ring seat 10 can stably drag the filter core 12.

[0038] Specifically, the middle hole 501 of the nozzle body 5 is connected to the outlet of the hydraulic equipment that needs to be filtered, and the outlet of the oil pump 9 is connected to the inlet of the hydraulic equipment that needs to be filtered. The hydraulic oil enters the interior of the solid half shell 3 from the middle hole 501, and then the hydraulic oil flows from the outer wall to the inner wall of the filter element 12. The filter element 12 filters out impurities in the hydraulic oil. The filtered hydraulic oil flows out from the middle hole of the filter element 12, and then flows into the circular ring plate 7 through the circular hole of the lower ring seat 10, and finally flows through the oil pump 9 from the liquid outlet hole 701 and the liquid outlet pipe 8. The oil pump 9 provides power to circulate the hydraulic oil.

[0039] Two cleaning cylinders 16 for cleaning the filter element 12 are rotatably provided above the rotating ring 13 , and a second gear 17 is provided on the top of the cleaning cylinder 16 . The two second gears 17 are engaged with an inner ring gear 18 , and the inner ring gear 18 is fixed on the inner wall of the solid half shell 3 .

[0040] Specifically, the gear 15 is rotated, and the gear 15 drives the swivel 13 to rotate synchronously. Seal rings are provided between the swivel 13 and the upper retaining ring 14, and between the swivel 13 and the retaining ring 11. Therefore, the hydraulic oil will not flow out of the device through the gaps between the swivel 13 and the upper retaining ring 14, or between the swivel 13 and the retaining ring 11. The swivel 13 rotates synchronously with the two cleaning cylinders 16. Due to the meshing action of the gear 2 17 on the upper end of the cleaning cylinders 16 and the inner gear ring 18, the cleaning cylinders 16 rotate along with the swivel 13 while also performing a circular motion. The cleaning cylinders 16 rotate around the outer wall of the filter element 12, cleaning the outer wall of the filter element 12 and removing all impurities on the outer wall of the filter element 12, thereby improving the efficiency of hydraulic oil filtration.

[0041] A motor 19 is fixed to the base plate 2. Gear 3 20 is mounted on the rotating shaft of motor 19. Gear 4 22 meshes with the side of gear 3 20. Gear 4 22 is fixed to a main shaft 21, which is rotatably mounted on the base plate 2. A central platform 23 is located in the middle of main shaft 21. Four insertion rods 24 are slidably mounted on central platform 23. A spring 1 25 is mounted on the outer surface of central platform 23. The ends of spring 1 25 are connected to central platform 23 and insertion rods 24, respectively. The insertion rods 24 are topped with a platform that prevents them from moving downward within the platform 23.

[0042] A gear five 26 is rotatably provided on the base plate 2, and the gear five 26 passes through the side groove 301 and engages with the gear one 15. A circular hole 2601 is provided in the middle of the gear five 26 for the main shaft 21 to pass through, and four pin holes 2602 are provided on the gear five 26 for the bottom of the insertion rod 24 to be inserted.

[0043] Specifically, the motor 19 drives the gear three 20 to rotate, and transmits power through the gear four 22, so that the main shaft 21 rotates synchronously, and the main shaft 21 rotates synchronously with the middle circular table 23. The spring 1 25 provides elastic force, so that the lower ends of the four insertion rods 24 are respectively inserted into the four pin holes 2602, so that the middle circular table 23 rotates synchronously with the gear five 26, and the gear five 26 drives the gear one 15 to rotate synchronously.

[0044] A screw 27 is rotatably mounted on the top of the solid half-shell 3. A rotary disc 28 is mounted on top of the screw 27. The screw 27 is threadedly connected to a three-way support plate 29. The first end of the three-way support plate 29 is fixedly connected to the sliding guide tube 6. The sliding guide tube 6 and the central hole 501 form a vertical sliding fit. A secondary guide tube 30 is mounted at the bottom of the sliding guide tube 6. Multiple side holes 3001 are disposed around the secondary guide tube 30. Hydraulic oil flows from the sliding guide tube 6 into the secondary guide tube 30 and then out through the side holes 3001.

[0045] A locking rod 31 is provided on the side of the first end of the three support plates 29 , and an L-shaped rod 32 for locking by the locking rod 31 is provided on the upper end of the nozzle body 5 .

[0046] Specifically, when the fixed half shell 3 and the movable half shell 4 are closed, the locking rod 31 contacts the vertical plate of the L-shaped rod 32 , that is, the locking rod 31 hooks the L-shaped rod 32 to lock the movable half shell 4 on the fixed half shell 3 . When the movable half-shell 4 needs to be opened from the fixed half-shell 3, the turntable 28 is rotated, and the turntable 28 rotates synchronously with the screw 27. Since the screw 27 and the three-bracket plate 29 are threaded together, and the sliding guide tube 6 slides vertically in the center hole 501, the three-bracket plate 29 moves upward with the rotation of the screw 17. The first end of the three-bracket plate 29 moves upward with the sliding guide tube 6 and the auxiliary guide tube 30. The side hole 3001 in the auxiliary guide tube 30 moves into the center hole 501 of the nozzle body 5. The center hole 501 blocks the side hole 3001, so that hydraulic oil no longer flows out of the side hole 3001. Therefore, when the movable half-shell 4 is opened on the fixed half-shell 3, hydraulic oil automatically stops flowing into the fixed half-shell 3. The turntable 28 is further rotated, causing the three-bracket plate 29 to continue to rise, and the locking rod 31 disengages from the vertical plate of the L-shaped rod 32, thus completing the unlocking of the movable half-shell 4 and the fixed half-shell 3.

[0047] The bottom of the secondary duct 30 is provided with a pressure plate 33 for fixing the filter element 12. When the filter element 12 is inserted into the interior of the retaining ring 11 and the three support plates 29 are at the lowest position, the pressure plate 33 automatically contacts the top of the filter element 12, and the filter element 12 is automatically locked on the retaining ring 11.

[0048] The top of the main shaft 21 is provided with a baffle 1 34 and a baffle 2 35 in sequence. The second end of the three support plates 29 forms a sliding fit with the main shaft 21. The second end of the three support plates 29 is located between the baffle 1 34 and the gear 1 15. The outer sleeve of the main shaft 21 is provided with a spring 2 36. The two ends of the spring 2 36 are respectively connected to the base plate 2 and the baffle 1 34.

[0049] Specifically, when the fixed half-shell 3 and the movable half-shell 4 are closed and locked, that is, when the three-support plate 29 is in the lower position, the lower surface of the second end of the three-support plate 29 contacts the baffle plate 1 34, the spring 2 36 is in a compressed state, the gear 4 22 is in the lower position, and the insertion rod 24 is inserted into the corresponding pin hole 2602. When the fixed half-shell 3 and the movable half-shell 4 are unlocked, that is, when the three-support plate 29 moves to the upper position, the upper surface of the second end of the three-support plate 29 contacts the baffle plate 2 35, driving the baffle plate 2 35 and the main shaft 21 to move upward, and the gear 4 22 also moves to the upper position. The gear 4 22 is still engaged with the gear 3 20, and the central circular table 23 moves the insertion rod 24 to the upper position, that is, the insertion rod 24 is disengaged from the corresponding gear 5 26, so the gear 5 26 no longer rotates.

[0050] The bottom of the main shaft 21 is connected to a bevel gear 1 37, and a bevel gear 2 38 is provided on the side of the bevel gear 1 37. The bevel gear 2 38 is fixed to one end of a cross bar 39, and the cross bar 39 is rotatably provided on the base plate 2. The other end of the cross bar 39 is provided with a bevel gear 3 40, and a bevel gear 41 is meshed with the side of the bevel gear 3 40. The bevel gear 41 is fixed on a rotating shaft 42, and the rotating shaft 42 is rotatably provided at the bottom of the fixed half shell 3, and the rotating shaft 42 is fixedly connected to the bottom of the movable half shell 4.

[0051] Specifically, when gear 4 22 is in the lower position, bevel gear 1 37 is separated from bevel gear 2 38. When gear 4 22 moves to the upper position, bevel gear 1 37 meshes with bevel gear 2 38, and motor 19 provides power, which is transmitted through gear 3 20, gear 4 22, main shaft 21, bevel gear 1 37, and bevel gear 2 38, causing crossbar 39 to rotate synchronously. Power is then transmitted through crossbar 39, bevel gear 3 40, and bevel gear 4 41, causing shaft 42 to rotate. Shaft 42 rotates the movable half-shell 4, thereby automatically opening the movable half-shell 4 from the fixed half-shell 3.

[0052] An upper through hole 302 and a lower through hole 303 are provided on the side wall of the solid half shell 3, and a connecting hole 702 coinciding with the lower through hole 303 is provided on the circular ring plate 7. The upper through hole 302 is located above the upper retaining ring 14, and the lower through hole 303 is located below the lower ring seat 10. A connector 43 is provided on the outer side wall of the solid half shell 3. The connector 43 has a long connecting hole 4301 in the vertical direction, and a connecting hole 1 4302 and a connecting hole 2 4303 connected to the long connecting hole 4301 are provided on the side of the connector 43, and the connecting hole 1 4302 and the connecting hole 2 4303 are connected to the upper through hole 302 and the lower through hole 303 respectively; a sealing rod 44 is slidably provided on the long connecting hole 4301 of the connector 43, and the sealing rod 44 is connected to the third section of the three support plates 29.

[0053] Specifically, when the three-support plate 29 is in the lower position, the sealing rod 44 is also in the lower position. The sealing rod 44 prevents the long connecting hole 4301 from connecting with the first connecting hole 4302, and the hydraulic oil does not flow through the connector 43. When the three-support plate 29 is in the upper position, the sealing rod 44 is also in the upper position and moves above the first connecting hole 4302. Therefore, the first connecting hole 4302, the long connecting hole 4301, and the second connecting hole 4303 are sequentially connected. The hydraulic oil above the swivel 13 flows through the connector 43 into the annular plate 7. The hydraulic oil in the annular plate 7 is then delivered to the hydraulic equipment by the oil pump 9, preventing the hydraulic oil from leaking when the fixed half-shell 3 and the movable half-shell 4 are opened.

[0054] Working Principle: During normal operation, the filter element 12 is inserted into the inner wall of the retaining ring 11, and the fixed half-shell 3 and the movable half-shell 4 are in a closed state, that is, the three-bracket 29 is in the lower position, and the locking rod 31 contacts the vertical plate of the L-shaped rod 32, that is, the locking rod 31 hooks the L-shaped rod 32, locking the movable half-shell 4 to the fixed half-shell 3. The first end of the three-bracket 29, carrying the sliding guide 6 and the auxiliary guide 30, is in the lower position, and the pressure plate 33 automatically contacts the top of the filter element 12, pressing the bottom of the filter element 12 against the lower ring seat 10, thereby automatically locking the filter element 12 into the inner wall of the retaining ring 11. At the same time, the side hole 3001 is located outside the central hole 501. The second end of the third support plate 29 contacts the first baffle plate 34, spring 2 36 is compressed, gear 4 22 is in the lower position, and spring 1 25 provides elastic force, causing the lower ends of the four insertion rods 24 to be inserted into the four pin holes 2602, simultaneously separating bevel gear 1 37 from bevel gear 2 38. The third end of the third support plate 29, carrying the sealing rod 44, is also in the lower position. This sealing rod 44 prevents the long coupling hole 4301 from connecting with the first coupling hole 4302, preventing hydraulic oil from flowing through the coupling 43.

[0055] Connect the sliding guide tube 6 to the outlet of the hydraulic equipment that needs to be filtered, and connect the outlet of the oil pump 9 to the inlet of the hydraulic equipment that needs to be filtered. The hydraulic oil enters the auxiliary guide tube 30 from the sliding guide tube 6 on the middle hole 501, and then enters the interior of the solid half shell 3 and the movable half shell 4 from the side hole 3001 on the auxiliary guide tube 30. Then the hydraulic oil flows from the outer wall to the inner wall of the filter element 12. The filter element 12 filters out the impurities in the hydraulic oil. The filtered hydraulic oil flows out from the middle hole of the filter element 12, and then flows into the circular ring plate 7 through the circular hole of the lower ring seat 10. Finally, it flows through the oil pump 9 from the liquid outlet hole 701 and the liquid outlet pipe 8. The oil pump 9 provides power to circulate and filter the hydraulic oil.

[0056] When the outer surface of the filter element 12 needs to be cleaned, the motor 19 is started, and the motor 19 drives the gear three 20 to rotate, and transmits power through the gear four 22, so that the main shaft 21 rotates synchronously, and the main shaft 21 rotates synchronously with the middle table 23, so the middle table 23 rotates synchronously with the gear five 26, and the gear five 26 drives the gear one 15 to rotate synchronously, and the gear one 15 drives the swivel 13 to rotate synchronously. There are sealing rings between the swivel 13 and the upper retaining ring 14, and between the swivel 13 and the retaining ring 11, so the hydraulic oil will not flow out to the outside of the device from the gap between the swivel 13 and the upper retaining ring 14, and the gap between the swivel 13 and the retaining ring 11. The swivel 13 rotates synchronously with the two cleaning cylinders 16. Due to the meshing action of the second gear 17 on the upper end of the cleaning cylinder 16 and the inner ring gear 18, the cleaning cylinder 16 rotates along with the rotation of the swivel 13 while also performing a circular motion. The cleaning cylinder 16 rotates around the outer wall of the filter element 12, cleaning the outer wall of the filter element 12 and removing all impurities on the outer wall of the filter element 12, thereby improving the efficiency of hydraulic oil filtration.

[0057] When the filtering efficiency of the filter element 12 deteriorates and the movable half-shell 4 needs to be removed from the fixed half-shell 3 to replace the filter element 12, the turntable 28 is rotated. The turntable 28 rotates synchronously with the screw 27. Since the screw 27 is threadedly engaged with the three-bracket plate 29, and the sliding guide tube 6 slides vertically upward in the center hole 501, the three-bracket plate 29 moves upward with the rotation of the screw 17. The first end of the three-bracket plate 29 carries the sliding guide tube 6 and the secondary guide tube 30 upward synchronously. The side hole 3001 in the secondary guide tube 30 moves into the center hole 501 of the nozzle body 5. The center hole 501 blocks the side hole 3001, so that hydraulic oil no longer flows out of the side hole 3001. Therefore, when the movable half-shell 4 is opened on the fixed half-shell 3, hydraulic oil automatically stops flowing into the fixed half-shell 3 and the movable half-shell 4. At the same time, the pressure plate 33 separates from the upper end of the filter element 12, unlocking the filter element 12. At this time, the third end of the three support plates 29 moves with the sealing rod 44 to the top of the first connecting hole 4302, so that the first connecting hole 4302, the long connecting hole 4301 and the second connecting hole 4303 are connected in sequence. The hydraulic oil above the swivel 13 flows into the annular plate 7 through the connector 43. The hydraulic oil in the annular plate 7 is delivered to the hydraulic equipment by the oil pump 9, preventing the hydraulic oil from leaking when the fixed half shell 3 and the movable half shell 4 are opened.

[0058] Continuing to rotate the turntable 28, the three support plates 29 continue to rise, disengaging the locking rod 31 from the vertical section of the L-shaped rod 32, thus unlocking the movable half-shell 4 and the fixed half-shell 3. Simultaneously, the upper surface of the second end of the three support plates 29 contacts the second baffle plate 35, driving the second baffle plate 35 and the main shaft 21 upward. Gear 4 22 also moves to the upper position, still meshing with gear 3 20. The central circular table 23 moves the insertion rod 24 to the upper position, disengaging the insertion rod 24 from the corresponding gear 5 26. Therefore, gear 5 26 no longer rotates, and the cleaning cylinder 16 no longer moves. During this process, the main shaft 21 moves upward with the bevel gear 1 37, and the bevel gear 1 37 meshes with the bevel gear 2 38. The motor 19 provides power and transmits power through the gear 3 20, the gear 4 22, the main shaft 21, the bevel gear 1 37 and the bevel gear 2 38, so that the cross bar 39 rotates synchronously. The power is then transmitted through the cross bar 39, the bevel gear 3 40 and the bevel gear 4 41 to rotate the rotating shaft 42. The rotating shaft 42 rotates with the movable half shell 4, so that the movable half shell 4 can be automatically opened from the fixed half shell 3, and the filter element 12 can be removed from the retaining ring 11 for replacement.

[0059] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications based on the present invention to solve substantially the same technical problems and achieve substantially the same technical effects are all included in the scope of protection of the present invention.

Claims

1. A hydraulic oil filter device for hydraulic equipment, comprising a base (1), a substrate (2) vertically disposed above the base (1), and characterized in that: A solid half shell (3) is fixedly provided on the base plate (2), a movable half shell (4) is tightly provided on the side of the solid half shell (3), a nozzle body (5) is provided through the top of the solid half shell (3), a middle hole (501) is provided in the middle part of the nozzle body (5), a sliding guide tube (6) is provided in the lower ring seat (10) of the nozzle body (5), a circular ring plate (7) is provided at the bottom of the solid half shell (3), a liquid outlet pipe (8) is connected to the bottom of the solid half shell (3), and a liquid outlet hole (701) connected to the liquid outlet pipe (8) is provided at the bottom of the circular ring plate (7), the liquid outlet pipe (8) is connected to the inlet of the oil pump (9), and the oil pump (9) is fixed on the base (1); A lower ring seat (10) is fixedly provided inside the solid half shell (3) and above the circular ring plate (7). The lower ring seat (10) and the circular ring plate (7) are tightly sealed. A circular hole is provided at the center of the lower ring seat (10), and a retaining ring (11) is vertically provided around the circular hole of the lower ring seat (10). The diameter of the circular hole of the lower ring seat (10) is smaller than the inner wall diameter of the retaining ring (11). A filter element (12) is sealedly inserted into the inner wall of the retaining ring (11). The retaining ring (11) 1) is provided with a rotating ring (13) on the outer wall thereof for sealing rotation, and an upper retaining ring (14) is provided on the outer wall of the rotating ring (13) for sealing rotation, and the upper retaining ring (14) is fixedly provided on the inner wall of the solid half shell (3), and a gear 1 (15) is provided on the outer wall of the rotating ring (13), and the gear 1 (15) is located between the lower ring seat (10) and the upper retaining ring (14), and a side groove (301) flush with the gear 1 (15) is provided on the side surface of the solid half shell (3); Two cleaning cylinders (16) for cleaning the filter element (12) are rotatably provided above the rotating ring (13). A second gear (17) is provided on the top of the cleaning cylinder (16). The two second gears (17) are engaged with an inner gear ring (18). The inner gear ring (18) is fixed on the inner wall of the solid half shell (3).

2. The hydraulic oil filter device for hydraulic equipment according to claim 1, characterized in that: A motor (19) is fixedly provided on the base plate (2), a gear three (20) is provided on the rotating shaft of the motor (19), a gear four (22) is meshed with the side of the gear three (20), the gear four (22) is fixedly provided on the main shaft (21), the main shaft (21) is rotatably provided on the base plate (2), a middle round table (23) is provided in the middle of the main shaft (21), four insertion rods (24) are slidably provided on the middle round table (23), a spring one (25) is provided on the outer sleeve of the middle round table (23), and the two ends of the spring one (25) are respectively connected to the middle round table (23) and the insertion rod (24); The base plate (2) is provided with a gear five (26) for rotation. The gear five (26) passes through the side groove (301) and meshes with the gear one (15). The middle of the gear five (26) is provided with a circular hole (2601) for the main shaft (21) to pass through, and the gear five (26) is provided with four pin holes (2602) for the bottom of the insertion rod (24) to be inserted.

3. The hydraulic oil filter device for hydraulic equipment according to claim 2, characterized in that: The top of the solid half shell (3) is rotatably provided with a screw rod (27), the top of the screw rod (27) is provided with a turntable (28), the screw rod (27) is threadedly connected to the three-support plate (29), the first end of the three-support plate (29) is fixedly connected to the sliding guide tube (6), and the sliding guide tube (6) and the middle hole (501) form a sliding fit along the vertical direction, the bottom of the sliding guide tube (6) is provided with a secondary guide tube (30), and the auxiliary guide tube (30) is provided with a plurality of side holes (3001) around it.

4. The hydraulic oil filter device for hydraulic equipment according to claim 3, characterized in that: A locking rod (31) is provided on the side of the first end of the three support plates (29), and an L-shaped rod (32) for locking the locking rod (31) is provided on the upper end of the nozzle body (5).

5. The hydraulic oil filter device for hydraulic equipment according to claim 4, characterized in that: A pressure plate (33) for fixing the filter element (12) is provided at the bottom of the secondary conduit (30).

6. The hydraulic oil filter device for hydraulic equipment according to claim 5, characterized in that: The top of the main shaft (21) is provided with a baffle plate 1 (34) and a baffle plate 2 (35) in sequence. The second end of the three support plates (29) forms a sliding fit with the main shaft (21). The second end of the three support plates (29) is located between the baffle plate 1 (34) and the gear 1 (15). The outer sleeve of the main shaft (21) is provided with a spring 2 (36). The two ends of the spring 2 (36) are respectively connected to the base plate (2) and the baffle plate 1 (34).

7. The hydraulic oil filter device for hydraulic equipment according to claim 6, characterized in that: The bottom of the main shaft (21) is connected to a bevel gear 1 (37), and a bevel gear 2 (38) is provided on the side of the bevel gear 1 (37). The bevel gear 2 (38) is fixed to one end of a cross bar (39), and the cross bar (39) is rotatably provided on the base plate (2). The other end of the cross bar (39) is provided with a bevel gear 3 (40), and a bevel gear 4 (41) is meshed with the side of the bevel gear 3 (40). The bevel gear 4 (41) is fixed to a rotating shaft (42), and the rotating shaft (42) is rotatably provided on the bottom of the fixed half shell (3). The rotating shaft (42) is fixedly connected to the bottom of the movable half shell (4).

8. The hydraulic oil filter device for hydraulic equipment according to claim 7, characterized in that: An upper through hole (302) and a lower through hole (303) are provided on the side wall of the solid half shell (3); a connecting hole (702) that coincides with the lower through hole (303) is provided on the annular plate (7); the upper through hole (302) is located above the upper retaining ring (14); and the lower through hole (303) is located below the lower ring seat (10); a connector (43) is provided on the outer side wall of the solid half shell (3); the connector (43) is provided with a long connecting hole (4301) in the vertical direction; a connecting hole 1 (4302) and a connecting hole 2 (4303) that are connected to the long connecting hole (4301) are provided on the side of the connector (43); and the connecting hole 1 (4302) and the connecting hole 2 (4303) are connected to the upper through hole (302) and the lower through hole (303) respectively; A sealing rod (44) is slidably provided in the long connecting hole (4301) of the connector (43), and the sealing rod (44) is connected to the third section of the three support plates (29).

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