A device and method for optimizing hydraulic system structure

Abstract

The present invention relates to the field of hydraulic technology, and discloses a device for optimizing the structure of a hydraulic system, including: a fixed part and a disassembly part, the fixed part includes an intermediate docking mechanism, the disassembly part includes a main filter mechanism, a pressure relief mechanism, an auxiliary filter mechanism and a slag cleaning prompt mechanism, the pressure relief mechanism is fixedly installed on the surface of the main filter mechanism, the auxiliary filter mechanism is fixedly installed on the top of the pressure relief mechanism, and the slag cleaning prompt mechanism is arranged between the main filter mechanism and the auxiliary filter mechanism. The invention, through the intermediate docking mechanism, the main filter mechanism, the pressure relief mechanism, the auxiliary filter mechanism and the slag cleaning prompt mechanism, can filter the reflux oil entering the valve group in advance, avoid the waste residue from settling inside the valve group and causing the valve parts to get stuck and wear, and increase the service life of the valve parts and the hydraulic system. When the main filter paper is blocked by the filter residue and the auxiliary filter paper is used for temporary filtering, the movable column can be triggered to descend, thereby providing a visual warning in time and ensuring that the disassembly part can be replaced in time.

Description

Technical Field

[0001] The present invention relates to the field of hydraulic technology, and in particular to a device and method for optimizing the structure of a hydraulic system. Background Art

[0002] The function of the hydraulic system is to increase the force by changing the pressure. A complete hydraulic system consists of five parts, namely power elements, actuators, control elements, auxiliary elements and hydraulic oil. The hydraulic system can be divided into two categories: hydraulic transmission system and hydraulic control system. The hydraulic transmission system mainly transmits power and motion. The hydraulic control system must make the hydraulic system output meet specific performance requirements. The hydraulic system usually refers to the hydraulic transmission system.

[0003] After a long period of operation, many impurities will be generated in the oil of the hydraulic system. In most hydraulic systems, a filter is generally installed at the front end of the oil pump to filter the oil. However, this not only makes the valve group directly connected to the return oil, but many impurities are deposited inside the valve group before reaching the filter. Moreover, it is difficult to directly warn and detect when the filter has too much filter residue inside the filter and the effect becomes poor. It is easy for the valve to get stuck and the wear of the components to be accelerated due to failure to replace the filter in time and fail to filter the oil in time. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a device and method for optimizing the structure of a hydraulic system, which solves the problems mentioned in the above background.

[0005] The present invention provides the following technical solution: a device for optimizing the structure of a hydraulic system, comprising: a fixing part and a disassembling part, the fixing part comprising an intermediate docking mechanism, the disassembling part comprising a main filtering mechanism, a pressure relief mechanism, an auxiliary filtering mechanism and a residue cleaning prompt mechanism, the pressure relief mechanism is fixedly installed on the surface of the main filtering mechanism, the auxiliary filtering mechanism is fixedly installed on the top of the pressure relief mechanism, and the residue cleaning prompt mechanism is arranged between the main filtering mechanism and the auxiliary filtering mechanism.

[0006] Preferably, the intermediate docking mechanism includes a docking seat, an embedded groove, a threaded groove, an outer sealing ring, an inner sealing ring, a reflux channel and a drainage channel, the embedded groove is opened on the upper surface of the docking seat, the threaded groove is opened on the inner wall of the embedded groove, the outer sealing ring and the inner sealing ring are both fixedly connected to the inner wall of the embedded groove, the reflux channel and the drainage channel are both opened through the interior of the docking seat, the reflux channel is connected to the embedded groove, and the drainage channel is connected to the threaded groove.

[0007] Preferably, the intermediate docking mechanism also includes a flange joint, an oil guide hose and a flange sealing ring. The number of the flange joints is two, and one flange joint is fixedly installed on the side of the docking seat close to the drainage channel by bolts, the oil guide hose is fixedly installed between the two flange joints, and the flange sealing ring is fixedly fitted to the inner walls of the two flange joints respectively.

[0008] Preferably, the main filtering mechanism includes a lower shell, a first bottom seal seat, a threaded head, a first oil inlet hole, a first fixing ring and a first one-way diaphragm. The lower shell is slidably connected to the inner wall of the embedded groove, the first bottom seal seat is fixedly connected to the inner wall of the bottom end of the lower shell, the threaded head is integrally arranged at the bottom of the first bottom seal seat, and the threaded head is threadedly connected to the threaded groove, the first oil inlet hole passes through the surface of the first bottom seal seat, the first one-way diaphragm is fixedly connected to the surface of the first bottom seal seat through the first fixing ring, and the first one-way diaphragm is located on one side of the first oil inlet hole.

[0009] Preferably, the main filtering mechanism also includes a main filter cartridge, a first top sealing seat, an oil drain hole, an upper edge tube and a main filter paper. The main filter cartridge is fixedly connected to the upper surface of the first bottom sealing seat, and the surface of the main filter cartridge is penetrated with a main filter hole. The first top sealing seat is fixedly connected to the top of the main filter cartridge, the oil drain hole is penetrated and opened on the surface of the first top sealing seat, the upper edge tube is integrally arranged in the middle of the top of the first top sealing seat, and the main filter paper is movably sleeved on the surface of the main filter cartridge.

[0010] Preferably, the pressure relief mechanism includes a pressure relief embedded shell, an air bag, a conducting hole and a valve core, the pressure relief embedded shell is fixedly connected to the top of the lower shell, the main filter paper and the main filter cartridge are both located in the middle of the pressure relief embedded shell, the air bag is fixedly connected to the inside of the pressure relief embedded shell, the conducting hole is penetrated and opened in the inner wall of the pressure relief embedded shell, the valve core is fixedly installed between the pressure relief embedded shell and the air bag, and the inside of the air bag is filled with nitrogen.

[0011] Preferably, the auxiliary filtering mechanism includes an upper shell, a second top sealing seat, an auxiliary filter cartridge, auxiliary filter paper and a sliding sealing ring, the upper shell is fixedly connected to the top of the pressure-relief embedded shell, the second top sealing seat is fixedly connected to the inner wall of the top end of the upper shell, the auxiliary filter cartridge is fixedly connected to the bottom of the second top sealing seat, and the surface of the auxiliary filter cartridge is penetrated by an auxiliary filter hole, the auxiliary filter paper is movably sleeved on the surface of the auxiliary filter cartridge, and the sliding sealing ring is fixedly connected to the inner wall of the second top sealing seat.

[0012] Preferably, the auxiliary filtering mechanism also includes a second bottom seal seat, a second oil inlet hole, a second fixing ring, a second one-way diaphragm, a supporting extension ring, an annular piston, an extrusion spring, a sealing gasket and a lower edge tube, the second bottom seal seat is fixedly connected to the inner wall of the upper shell, and the top of the second bottom seal seat is fixedly connected to the bottom end of the auxiliary filter cartridge, the second oil inlet hole passes through the surface of the second bottom seal seat, the second one-way diaphragm is fixedly connected to the top of the second bottom seal seat through the second fixing ring, and the second one-way diaphragm is located on one side of the second oil inlet hole, the supporting extension ring is integrally arranged on the lower surface of the second bottom seal seat, the annular piston is slidably connected to the inner wall of the upper shell, the extrusion spring is movably installed between the second bottom seal seat and the annular piston, the sealing gasket is fixedly fitted on the lower surface of the annular piston, and the surface of the sealing gasket is movably connected to the upper surface of the first top seal seat, and the lower edge tube is integrally arranged in the middle of the bottom of the second bottom seal seat, and the lower edge tube is fixedly connected to the upper edge tube.

[0013] Preferably, the slag cleaning prompt mechanism includes a valve seat, a movable column, a locking spring, a sealing sheet, an oil through hole and a scale groove, the valve seat is fixedly connected between the lower edge tube and the upper edge tube, the movable column is slidably connected to the inner wall of the sliding seal ring, the locking spring is movably installed between the movable column and the valve seat, the sealing sheet is fixedly connected to the bottom end of the movable column, and the surface of the sealing sheet is fixedly connected with a rubber sheet, and the surface of the rubber sheet is movably connected to the lower surface of the valve seat, the oil through hole is opened through the surface of the valve seat, and the scale groove is opened on the surface of the top of the movable column.

[0014] A method for optimizing a hydraulic system structure, comprising:

[0015] Step S1: fixing the docking seat on the frame surface of the hydraulic system by bolts;

[0016] Step S2: docking the oil return pipe with the side of the docking seat close to the return channel through bolts and flanges, and then docking the flange docking joint away from the docking seat with the oil return interface of the valve group through bolts;

[0017] Step S3: Install the disassembly part to the top of the fixed part, so as to filter the oil of the return pilot valve group in advance.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The invention, through the provision of an intermediate docking mechanism, a main filtering mechanism, a pressure relief mechanism, a secondary filtering mechanism and a residue clearing reminder mechanism, can filter the return oil entering the valve group in advance, thereby preventing waste residue from settling inside the valve group and causing valve jamming and wear, thereby increasing the service life of the valves and the hydraulic system.

[0020] The invention, through the arrangement of the docking seat, embedded groove, threaded groove, outer sealing ring, inner sealing ring, reflux channel, discharge channel, flange joint, oil guide hose and flange sealing ring, can install the device between the oil return pipe and the valve group, thereby ensuring that the oil can be filtered before reaching the valve group, ensuring that the oil passes through the valve group and subsequent components after being cleaned, and facilitating the replacement and maintenance of the disassembly and assembly parts.

[0021] The invention, by setting a lower shell, a first bottom seal seat, a threaded head, a first oil inlet hole, a first fixing ring, a first one-way diaphragm, a main filter cartridge, a first top seal seat, an oil drain hole, an upper edge tube and a main filter paper, can filter and intercept residues in the oil through the main filter paper when the device is working normally, and form a one-way conduction effect through the cooperation of the first one-way diaphragm and the first oil inlet hole to avoid backflow.

[0022] The invention, by providing a pressure-relief embedded shell, an airbag, a conducting hole and a valve core, can fill the pressure-relief embedded shell with the airbag filled with nitrogen, thereby ensuring that a buffer is formed when the oil suddenly increases, thereby preventing the main filter paper and the auxiliary filter paper from being easily damaged by impact.

[0023] The invention, through the upper shell, second top sealing seat, auxiliary filter cartridge, auxiliary filter paper, sliding sealing ring, second bottom sealing seat, second oil inlet hole, second fixing ring, second one-way diaphragm, support extension ring, annular piston, extrusion spring, sealing gasket and lower edge tube, can open the annular piston after the main filter paper is blocked by filter residue due to long-term use, so that the oil can be temporarily filtered by the auxiliary filter paper, thereby ensuring that the disassembly and assembly part can filter normally before the warning is detected.

[0024] The invention, through the arranged valve seat, movable column, locking spring, sealing sheet, oil hole and scale groove, can trigger the movable column to descend when the main filter paper is blocked by filter residue and the auxiliary filter paper is used for temporary filtration, thereby providing timely visual warning and ensuring that the disassembly and assembly part can be replaced in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 It is a side sectional view of the intermediate docking mechanism of the present invention;

[0027] Figure 3 This is a schematic diagram of the disassembly and assembly structure of the present invention;

[0028] Figure 4 It is a side sectional view of the disassembly and assembly part of the present invention;

[0029] Figure 5 This is a schematic diagram of the internal explosion structure of the disassembly and assembly part of the present invention;

[0030] Figure 6 This is a schematic diagram of the structure of the slag cleaning prompting mechanism of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the annular piston position of the present invention;

[0032] Figure 8 This is a schematic diagram of the explosion structure at the first bottom sealing seat position of the present invention;

[0033] Fig. 9 It is a schematic diagram of the explosion structure at the second bottom sealing seat position of the present invention.

[0034] In the figure: 101, docking seat; 102, embedded groove; 103, threaded groove; 104, outer sealing ring; 105, inner sealing ring; 106, reflux channel; 107, drainage channel; 108, flange joint; 109, oil guide hose; 110, flange sealing ring; 201, lower shell; 202, first bottom seal seat; 203, threaded head; 204, first oil inlet hole; 205, first fixing ring; 206, first one-way diaphragm; 207, main filter cartridge; 208, first top seal seat; 209, oil drainage hole; 210, upper pipe; 211, main filter paper; 301, pressure-relief embedded shell ; 302, air bag; 303, guide hole; 304, valve core; 401, upper shell; 402, second top seal seat; 403, auxiliary filter cartridge; 404, auxiliary filter paper; 405, sliding seal ring; 406, second bottom seal seat; 407, second oil inlet hole; 408, second fixing ring; 409, second one-way diaphragm; 410, support extension ring; 411, annular piston; 412, extrusion spring; 413, sealing gasket; 414, lower edge tube; 501, valve seat; 502, movable column; 503, locking spring; 504, sealing sheet; 505, oil through hole; 506, scale groove. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-9, a device for optimizing the structure of a hydraulic system, comprising: a fixed part and a disassembly part, the fixed part comprising an intermediate docking mechanism, the disassembly part comprising a main filtering mechanism, a pressure relief mechanism, an auxiliary filtering mechanism and a slag cleaning prompting mechanism, the pressure relief mechanism is fixedly mounted on the surface of the main filtering mechanism, the auxiliary filtering mechanism is fixedly mounted on the top of the pressure relief mechanism, and the slag cleaning prompting mechanism is arranged between the main filtering mechanism and the auxiliary filtering mechanism. By means of the intermediate docking mechanism, the main filtering mechanism, the pressure relief mechanism, the auxiliary filtering mechanism and the slag cleaning prompting mechanism, the reflux oil entering the valve group can be filtered in advance, so as to avoid the waste residue from settling inside the valve group and causing the valve parts to be stuck and worn, thereby improving the service life of the valve parts and the hydraulic system.

[0037] Among them; the intermediate docking mechanism includes a docking seat 101, an embedded groove 102, a threaded groove 103, an outer sealing ring 104, an inner sealing ring 105, a reflux channel 106 and a discharge channel 107, the embedded groove 102 is arranged on the upper surface of the docking seat 101, the threaded groove 103 is arranged on the inner wall of the embedded groove 102, the outer sealing ring 104 and the inner sealing ring 105 are both fixedly connected to the inner wall of the embedded groove 102, the reflux channel 106 and the discharge channel 107 are both opened through the interior of the docking seat 101, and the reflux channel 106 is connected to the embedded groove 102, and the discharge channel 107 is connected to the threaded groove 103.

[0038] Among them, the intermediate docking mechanism also includes a flange docking joint 108, an oil guide hose 109 and a flange sealing ring 110. There are two flange docking joints 108, and one flange docking joint 108 is fixedly installed on the side of the docking seat 101 close to the discharge channel 107 by bolts. The oil guide hose 109 is fixedly installed between the two flange docking joints 108, and the flange sealing ring 110 is fixedly fitted on the inner walls of the two flange docking joints 108 respectively. Through the arranged docking seat 101, embedded groove 102, threaded groove 103, outer sealing ring 104, inner sealing ring 105, reflux channel 106, discharge channel 107, flange docking joint 108, oil guide hose 109 and flange sealing ring 110, the device can be installed between the oil return pipeline and the valve group, ensuring that the oil can be filtered before reaching the valve group, ensuring that the oil passes through the valve group and subsequent components after cleaning, and facilitating the replacement and maintenance of the disassembly and assembly part.

[0039] Among them; the main filtering mechanism includes a lower shell 201, a first bottom seal seat 202, a threaded head 203, a first oil inlet hole 204, a first fixing ring 205 and a first one-way diaphragm 206, the lower shell 201 is slidably connected to the inner wall of the embedded groove 102, the first bottom seal seat 202 is fixedly connected to the inner wall of the bottom end of the lower shell 201, the threaded head 203 is integrally arranged at the bottom of the first bottom seal seat 202, and the threaded head 203 is threadedly connected to the threaded groove 103, the first oil inlet hole 204 penetrates the surface of the first bottom seal seat 202, the first one-way diaphragm 206 is fixedly connected to the surface of the first bottom seal seat 202 through the first fixing ring 205, and the first one-way diaphragm 206 is located on one side of the first oil inlet hole 204.

[0040] The main filtering mechanism further includes a main filter cartridge 207, a first top seal seat 208, an oil drain hole 209, an upper pipe 210 and a main filter paper 211. The main filter cartridge 207 is fixedly connected to the upper surface of the first bottom seal seat 202, and the surface of the main filter cartridge 207 is penetrated with a main filter hole. The first top seal seat 208 is fixedly connected to the top of the main filter cartridge 207, the oil drain hole 209 is penetrated and opened on the surface of the first top seal seat 208, the upper pipe 210 is integrally arranged in the middle of the top of the first top seal seat 208, and the main filter paper 211 is movable sleeved. It is connected to the surface of the main filter cartridge 207, and is provided with a lower casing 201, a first bottom sealing seat 202, a threaded head 203, a first oil inlet hole 204, a first fixing ring 205, a first one-way diaphragm 206, the main filter cartridge 207, a first top sealing seat 208, an oil drain hole 209, an upper pipe 210 and a main filter paper 211, so that when the device is working normally, the residue in the oil can be filtered and intercepted through the main filter paper 211, and the first one-way diaphragm 206 cooperates with the first oil inlet hole 204 to form a one-way conduction effect to avoid backflow.

[0041] Among them; the pressure relief mechanism includes a pressure relief embedded shell 301, an air bag 302, a conducting hole 303 and a valve core 304, the pressure relief embedded shell 301 is fixedly connected to the top of the lower shell 201, the main filter paper 211 and the main filter cartridge 207 are both located in the middle of the pressure relief embedded shell 301, the air bag 302 is fixedly connected to the inside of the pressure relief embedded shell 301, the conducting hole 303 penetrates through the inner wall of the pressure relief embedded shell 301, the valve core 304 is fixedly installed between the pressure relief embedded shell 301 and the air bag 302, and the inside of the air bag 302 is filled with nitrogen. Through the set pressure relief embedded shell 301, air bag 302, conducting hole 303 and valve core 304, the pressure relief embedded shell 301 can be filled through the air bag 302 filled with nitrogen, so as to form a buffer when the oil suddenly increases, thereby preventing the main filter paper 211 and the auxiliary filter paper 404 from being easily damaged by impact.

[0042] Among them; the auxiliary filtering mechanism includes an upper shell 401, a second top sealing seat 402, an auxiliary filter cartridge 403, an auxiliary filter paper 404 and a sliding seal ring 405, the upper shell 401 is fixedly connected to the top of the pressure-relief embedded shell 301, the second top sealing seat 402 is fixedly connected to the inner wall of the top of the upper shell 401, the auxiliary filter cartridge 403 is fixedly connected to the bottom of the second top sealing seat 402, and the surface of the auxiliary filter cartridge 403 is penetrated by auxiliary filter holes, the auxiliary filter paper 404 is movably sleeved on the surface of the auxiliary filter cartridge 403, and the sliding seal ring 405 is fixedly connected to the inner wall of the second top sealing seat 402.

[0043] Among them, the auxiliary filtering mechanism also includes a second bottom seal seat 406, a second oil inlet hole 407, a second fixing ring 408, a second one-way diaphragm 409, a support extension ring 410, an annular piston 411, an extrusion spring 412, a sealing gasket 413 and a lower edge tube 414, the second bottom seal seat 406 is fixedly connected to the inner wall of the upper shell 401, and the top of the second bottom seal seat 406 is fixedly connected to the bottom end of the auxiliary filter cartridge 403, the second oil inlet hole 407 penetrates and is opened on the surface of the second bottom seal seat 406, the second one-way diaphragm 409 is fixedly connected to the top of the second bottom seal seat 406 through the second fixing ring 408, and the second one-way diaphragm 409 is located on one side of the second oil inlet hole 407, the support extension ring 410 is integrally arranged on the lower surface of the second bottom seal seat 406, the annular piston 411 is slidably connected to the inner wall of the upper shell 401, and the extrusion spring 412 is movably mounted between the second bottom seal seat 406 and the annular The sealing gasket 413 is fixedly fitted on the lower surface of the annular piston 411, and the surface of the sealing gasket 413 is movably connected to the upper surface of the first top sealing seat 208, the lower edge tube 414 is integrally arranged in the middle of the bottom of the second bottom sealing seat 406, and the lower edge tube 414 is fixedly connected to the upper edge tube 210, through the upper shell 401, the second top sealing seat 402, the auxiliary filter cartridge 403, the auxiliary filter paper 404, the sliding seal ring 405, the second bottom sealing seat 406, the second oil inlet hole 407, the second fixing ring 408, the second one-way diaphragm 409, the support extension ring 410, the annular piston 411, the extrusion spring 412, the sealing gasket 413 and the lower edge tube 414, the annular piston 411 can be opened after the main filter paper 211 is blocked by filter residue after long-term use, so that the oil is temporarily filtered by the auxiliary filter paper 404, thereby ensuring that the disassembly and assembly part can be filtered normally before the warning is detected.

[0044] The slag clearing prompt mechanism includes a valve seat 501, a movable column 502, a locking spring 503, a sealing sheet 504, an oil hole 505 and a graduated groove 506. The valve seat 501 is fixedly connected between the lower pipe 414 and the upper pipe 210, the movable column 502 is slidably connected to the inner wall of the sliding seal ring 405, the locking spring 503 is movably installed between the movable column 502 and the valve seat 501, the sealing sheet 504 is fixedly connected to the bottom end of the movable column 502, and the surface of the sealing sheet 504 is fixedly connected with a rubber sheet, and the rubber The surface of the plate is movably connected to the lower surface of the valve seat 501, the oil hole 505 passes through the surface of the valve seat 501, and the scale groove 506 is opened on the surface of the top of the movable column 502. Through the arrangement of the valve seat 501, the movable column 502, the locking spring 503, the sealing plate 504, the oil hole 505 and the scale groove 506, the movable column 502 can be triggered to descend when the main filter paper 211 is blocked by the filter residue and the auxiliary filter paper 404 is used for temporary filtration, thereby providing timely visual warnings and ensuring that the disassembly and assembly parts can be replaced in time.

[0045] A method for optimizing a hydraulic system structure, comprising:

[0046] Step S1: fixing the docking seat 101 on the frame surface of the hydraulic system by means of bolts;

[0047] Step S2: docking the oil return pipe with the side of the docking seat 101 close to the return channel 106 by bolts and flanges, and then docking the flange docking joint 108 away from the docking seat 101 with the oil return interface of the valve group by bolts;

[0048] Step S3: Install the disassembly part to the top of the fixed part, so as to filter the oil of the return pilot valve group in advance.

[0049] Working principle:

[0050] During normal operation, the oil enters the embedded groove 102 from the reflux channel 106, and then pushes the first one-way diaphragm 206 from the first oil inlet hole 204 to enter the lower casing 201, and then the oil passes through the main filter paper 211 and the main filter cartridge 207 in sequence, and the clean oil enters the interior of the main filter cartridge 207, and the filter residue is intercepted on the outer surface by the main filter paper 211, and then the clean oil enters the thread groove 103 from the thread head 203, and then enters the flange joint 108 and the oil guide hose 109 through the discharge channel 107, and then flows back to the inside of the valve group, at this time, the locking spring 503 squeezes the active column 502 to extend upward, and the top of the active column 502 is in a protruding state;

[0051] When the main filter paper 211 is blocked by the filter residue, the oil enters the embedded groove 102 from the reflux channel 106, and then pushes the first one-way diaphragm 206 from the first oil inlet hole 204 to enter the lower shell 201. At this time, since the main filter paper 211 is blocked, as the oil pressure of the reflux oil increases, the oil will first squeeze the airbag 302 to shrink. After the airbag 302 shrinks to a certain extent, the oil pushes the annular piston 411 from the oil discharge hole 209. After the annular piston 411 is pushed open, the oil passes through the annular piston 411, and then passes through the second oil inlet hole 407 to push the second one-way diaphragm 409, and then reaches the outside of the auxiliary filter paper 404. Then the oil passes through the auxiliary filter paper 404 and the auxiliary filter cartridge 403 in turn, and the clean oil enters the interior of the auxiliary filter cartridge 403, and the filter residue is filtered out by the auxiliary filter. After the clean oil passes through the oil hole 505 and squeezes the sealing piece 504, it will enter the interior of the main filter cartridge 207, and then the clean oil will enter the threaded groove 103 from the threaded head 203, and then enter the flange joint 108 and the oil guide hose 109 through the drainage channel 107, and then flow back to the interior of the valve group.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for optimizing the structure of a hydraulic system, characterized in that: include: A fixing part and a disassembling part, wherein the fixing part includes an intermediate docking mechanism, and the disassembling part includes a main filtering mechanism, a pressure relief mechanism, an auxiliary filtering mechanism and a slag cleaning prompting mechanism, wherein the pressure relief mechanism is fixedly mounted on the surface of the main filtering mechanism, the auxiliary filtering mechanism is fixedly mounted on the top of the pressure relief mechanism, and the slag cleaning prompting mechanism is arranged between the main filtering mechanism and the auxiliary filtering mechanism; The intermediate docking mechanism comprises a docking seat (101), an embedded groove (102), a threaded groove (103), an outer sealing ring (104), an inner sealing ring (105), a reflux channel (106) and a drainage channel (107); the embedded groove (102) is provided on the upper surface of the docking seat (101); the threaded groove (103) is provided on the inner wall of the embedded groove (102); the outer sealing ring (104) and the inner sealing ring (105) are both fixedly connected to the inner wall of the embedded groove (102); the reflux channel (106) and the drainage channel (107) are both provided through the interior of the docking seat (101); the reflux channel (106) is communicated with the embedded groove (102); and the drainage channel (107) is communicated with the threaded groove (103); The intermediate docking mechanism further comprises a flange docking joint (108), an oil guide hose (109) and a flange sealing ring (110); the number of the flange docking joints (108) is two, and one flange docking joint (108) is fixedly mounted on a side of the docking seat (101) close to the discharge channel (107) by means of bolts; the oil guide hose (109) is fixedly mounted between the two flange docking joints (108); and the flange sealing ring (110) is fixedly fitted to the inner walls of the two flange docking joints (108) respectively; The main filtering mechanism comprises a lower casing (201), a first bottom sealing seat (202), a threaded head (203), a first oil inlet hole (204), a first fixing ring (205) and a first one-way diaphragm (206); the lower casing (201) is slidably connected to the inner wall of the embedded groove (102); the first bottom sealing seat (202) is fixedly connected to the inner wall of the bottom end of the lower casing (201); the threaded head (203) is integrally arranged at the bottom of the first bottom sealing seat (202), and the threaded head (203) is threadedly connected to the thread groove (103); the first oil inlet hole (204) penetrates the surface of the first bottom sealing seat (202); the first one-way diaphragm (206) is fixedly connected to the surface of the first bottom sealing seat (202) through the first fixing ring (205), and the first one-way diaphragm (206) is located on one side of the first oil inlet hole (204); The main filtering mechanism further comprises a main filter cartridge (207), a first top sealing seat (208), an oil drain hole (209), an upper edge tube (210) and a main filter paper (211); the main filter cartridge (207) is fixedly connected to the upper surface of the first bottom sealing seat (202), and the surface of the main filter cartridge (207) is provided with a main filter hole, the first top sealing seat (208) is fixedly connected to the top of the main filter cartridge (207), the oil drain hole (209) is provided on the surface of the first top sealing seat (208), the upper edge tube (210) is integrally arranged in the middle of the top of the first top sealing seat (208), and the main filter paper (211) is movably sleeved on the surface of the main filter cartridge (207); The pressure relief mechanism comprises a pressure relief inner shell (301), an air bag (302), a conducting hole (303) and a valve core (304); the pressure relief inner shell (301) is fixedly connected to the top of the lower shell (201); the main filter paper (211) and the main filter cartridge (207) are both located in the middle of the pressure relief inner shell (301); the air bag (302) is fixedly connected to the inside of the pressure relief inner shell (301); the conducting hole (303) penetrates and is opened in the inner wall of the pressure relief inner shell (301); the valve core (304) is fixedly installed between the pressure relief inner shell (301) and the air bag (302); and the inside of the air bag (302) is filled with nitrogen; The auxiliary filtering mechanism comprises an upper casing (401), a second top sealing seat (402), an auxiliary filter cartridge (403), auxiliary filter paper (404) and a sliding seal ring (405); the upper casing (401) is fixedly connected to the top of the pressure-relief embedded casing (301); the second top sealing seat (402) is fixedly connected to the inner wall of the top of the upper casing (401); the auxiliary filter cartridge (403) is fixedly connected to the bottom of the second top sealing seat (402); and auxiliary filter holes are formed through the surface of the auxiliary filter cartridge (403); the auxiliary filter paper (404) is movably sleeved on the surface of the auxiliary filter cartridge (403); and the sliding seal ring (405) is fixedly connected to the inner wall of the second top sealing seat (402); The auxiliary filtering mechanism further comprises a second bottom sealing seat (406), a second oil inlet hole (407), a second fixing ring (408), a second one-way diaphragm (409), a supporting extension ring (410), an annular piston (411), an extrusion spring (412), a sealing gasket (413) and a lower edge tube (414); the second bottom sealing seat (406) is fixedly connected to the inner wall of the upper shell (401), and the top of the second bottom sealing seat (406) is fixedly connected to the bottom end of the auxiliary filter cartridge (403); the second oil inlet hole (407) penetrates the surface of the second bottom sealing seat (406), the second one-way diaphragm (409) is fixedly connected to the top of the second bottom sealing seat (406) through the second fixing ring (408), and the second The one-way diaphragm (409) is located on one side of the second oil inlet hole (407), the support extension ring (410) is integrally arranged on the lower surface of the second bottom seal seat (406), the annular piston (411) is slidably connected to the inner wall of the upper shell (401), the extrusion spring (412) is movably installed between the second bottom seal seat (406) and the annular piston (411), the sealing gasket (413) is fixedly fitted on the lower surface of the annular piston (411), and the surface of the sealing gasket (413) is movably connected to the upper surface of the first top seal seat (208), and the lower edge tube (414) is integrally arranged in the middle of the bottom of the second bottom seal seat (406), and the lower edge tube (414) is fixedly connected to the upper edge tube (210).

2. The device for optimizing the structure of a hydraulic system according to claim 1, characterized in that: The slag cleaning prompt mechanism comprises a valve seat (501), a movable column (502), a locking spring (503), a sealing sheet (504), an oil through hole (505) and a graduated groove (506); the valve seat (501) is fixedly connected between the lower edge tube (414) and the upper edge tube (210); the movable column (502) is slidably connected to the inner wall of the sliding seal ring (405); the locking spring (503) is movably installed between the movable column (502) and the valve seat (501); the sealing sheet (504) is fixedly connected to the bottom end of the movable column (502); a rubber sheet is fixedly connected to the surface of the sealing sheet (504); and the surface of the rubber sheet is movably connected to the lower surface of the valve seat (501); the oil through hole (505) is opened through the surface of the valve seat (501); and the graduated groove (506) is opened on the surface of the top end of the movable column (502).

3. A method for optimizing the structure of a hydraulic system according to any one of claims 1 to 2, characterized in that: include: Step S1: fixing the docking seat (101) on the frame surface of the hydraulic system by means of bolts; Step S2: docking the oil return pipeline with the side of the docking seat (101) close to the return channel (106) by means of bolts and flanges, and then docking the flange docking joint (108) away from the docking seat (101) with the oil return interface of the valve group by means of bolts; Step S3: Install the disassembly part to the top of the fixed part, so as to filter the oil of the return pilot valve group in advance.

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