Particle separator sealing clamp, sealing test device and sealing test method

Abstract

The invention discloses a particle separator sealing clamp, a sealing test device and a sealing test method, and belongs to the technical field of aero-engine tests.The particle separator sealing clamp comprises a positioning plate assembly, a bottom plate assembly, a connecting piece, a pipe joint and a plugging assembly; the positioning plate is used for blocking the first end of a main oil way of the rear section of a cartridge receiver of the particle separator assembly, an air inlet through hole is formed in the positioning plate, the pipe connector is arranged in the air inlet through hole and used for being externally connected with an air source and guiding air into the main oil way of the rear section of the cartridge receiver, and the blocking assembly is used for replacing the pipe connector to be installed in the air inlet through hole and blocking the air inlet through hole. The bottom plate assembly comprises a bottom plate, the bottom plate is used for blocking the second end of the main oil way of the rear section of the cartridge receiver of the particle separator assembly, and the connecting piece is used for connecting and locking the positioning plate and the bottom plate. According to the invention, one set of sealing clamp can meet the requirements of sealing tests in different stages, and the test efficiency and the test accuracy are improved.

Description

Technical Field

[0001] The present application relates to the field of aero-engine testing technology, and in particular, to a particle separator sealing fixture. In addition, the present application also relates to a sealing test device including the particle separator sealing fixture, and a sealing test method using the ion separator sealing test device. Background Art

[0002] The information provided in this section is for the purpose of generally presenting the background of the present application. To the extent described in this section, the work of the presently named inventors and aspects of the description that may not constitute prior art at the time of filing are neither explicitly nor implicitly admitted to be prior art to the present application.

[0003] During the assembly process of a certain type of aircraft engine particle separator unit, it is necessary to conduct a sealing inspection test on the particle separator unit to check whether the sealing of the unit oil cavity is qualified. Therefore, it is necessary to ensure that the assembly is qualified to meet the closed environment conditions of the unit component cavity. If the assembly is unqualified or the test equipment cannot meet the inspection requirements, it will lead to misjudgment of the sealing, causing oil leakage during engine operation or affecting the normal operation of the engine, and the engine quality and safety cannot be guaranteed.

[0004] If the sealing effect of the engine particle separator assembly is not good, air leakage is likely to occur at the contact point between the test device and the parts. The oil circuit of the particle separator assembly fails to achieve good sealing, so that the pressure in the unit cavity cannot meet the test requirements and is insufficient to check whether the unit assembly is qualified or whether the casing body has defects such as sand holes.

[0005] After research, it was found that the current sealing test has the following problems: since multiple sets of test fixtures are used to conduct tests in stages, the workload is large, and the cross-use of multiple sets of test fixtures is relatively chaotic; the sealing effect of the test device is not high, the test pass rate is difficult to further improve, and the test device is prone to corrosion and other phenomena; the test device does not have multi-directional degrees of freedom such as rotation and lifting, which is not convenient for test inspection and is not conducive to improving test efficiency.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0007] In view of at least one of the above technical problems, the present application provides a particle separator sealing clamp, which can well seal the main oil circuit of the particle separator assembly through the positioning plate assembly and the bottom plate assembly in cooperation with the connecting parts, and in the sealing test of the particle separator assembly at different stages, it is only necessary to replace the sealing assembly with a pipe joint to achieve the change of the intake passage, so as to adapt to the needs of the sealing test at different stages through a set of sealing clamps.

[0008] At the same time, the present application also provides a sealing test device including the above-mentioned particle separator sealing clamp, and a sealing test method using the above-mentioned ion separator sealing test device. Sealing tests at different stages can be realized through a set of sealing test devices, avoiding the cross-use of multiple sets of clamps resulting in heavy workload and large assembly operation errors, thereby effectively improving the efficiency and accuracy of the sealing test.

[0009] According to one aspect of the present application, a particle separator sealing fixture is provided, which is used to block the main oil circuit of a particle separator assembly. The particle separator sealing fixture includes a positioning plate assembly, a base plate assembly, a connector, a pipe joint and a blocking assembly:

[0010] The positioning plate assembly includes a positioning plate, which is used to block the first end of the main oil circuit of the rear section of the casing of the particle separator assembly. An air intake hole is opened on the positioning plate, and a pipe joint is arranged in the air intake hole. The pipe joint is used to connect an external gas source and introduce the gas into the main oil circuit of the rear section of the casing. The sealing assembly is used to replace the pipe joint and install it in the air intake hole to block the air intake hole. The base plate assembly includes a base plate, which is used to block the second end of the main oil circuit of the rear section of the casing of the particle separator assembly. The connecting piece is used to connect and lock the positioning plate and the base plate.

[0011] In some embodiments of the present application, the first end of the connecting member is clamped with the base plate, the positioning plate assembly also includes a locking member, the second end of the connecting member passes through the positioning plate, and the locking member is used to be threadedly connected to the second end of the connecting member and press the positioning plate tightly against the first end of the main oil circuit of the rear section of the casing of the particle separator assembly.

[0012] In some embodiments of the present application, a protrusion is provided at the first end of the connecting member, and a groove-shaped clamping portion is formed between the protrusion and the connecting member. The base plate assembly also includes a bushing, a locking member and a clamping block. A mounting through hole is provided on the base plate. The bushing is used to be inserted into the mounting through hole and the bushing is connected and locked to the base plate through the locking member. A limiting hole is provided on the bushing, and a clamping hole is provided on the side wall of the limiting hole. The first end of the connecting member is used to be inserted into the limiting hole and the clamping portion is arranged corresponding to the clamping hole. The clamping block is used to be inserted into the clamping hole and the clamping portion in sequence to lock the connecting member and the bushing.

[0013] In some embodiments of the present application, the base plate assembly also includes a cylindrical pin, which is used to be inserted into a first guide hole preset on the bushing and a second guide hole preset on the base plate in sequence to guide the bushing and the base plate, and the cylindrical pin is also used to limit the outer side of the block.

[0014] In some embodiments of the present application, a second sealing gasket and a first sealing ring are provided on the contact surface between the positioning plate and the first end of the main oil circuit of the rear section of the casing of the particle separator assembly, a third sealing gasket and a third sealing ring are provided on the contact surface between the base plate and the second end of the main oil circuit of the rear section of the casing of the particle separator assembly, and the sealing assembly includes a sealing member, and a fourth sealing ring is provided on the contact surface between the sealing member and the air intake hole.

[0015] In addition, the present application also provides a particle separator sealing test device, which is used to perform a sealing test on a particle separator assembly. The particle separator sealing test device includes a particle separator sealing fixture as described in any one of claims 1 to 5, as well as a spray assembly and a test platform assembly. The particle separator sealing fixture is used to block the main oil circuit of the particle separator assembly. The test platform assembly includes a transparent water tank, a vent pipe, a rotating shaft and a driving mechanism. The transparent water tank is used to hold deionized water. Two rotating shafts are provided, and the two rotating shafts are arranged on opposite sides of the transparent water tank. The rotating shafts on both sides are used to connect to opposite ends of the particle separator assembly. The driving mechanism is connected to the rotating shaft and is used to drive the particle separator assembly to rotate through the rotating shaft. The first end of the vent pipe is used to communicate with a preset air inlet of the particle separator assembly or to communicate with a pipe joint. The second end of the vent pipe is rotatably connected to an air inlet pipe preset on the transparent water tank. The air inlet pipe is used to connect to an external air source. The spray assembly is supported above the transparent water tank. The spray assembly is used to spray deionized water onto the outer surface of the particle separator assembly.

[0016] In some embodiments of the present application, the spray assembly includes a spray head, a hanger and a mounting frame. The mounting frame is fixedly arranged and is used to mount the spray head above a transparent water tank. The top of the spray head is connected to the hanger by a pull rope. The hanger and the spray head are located on opposite sides of the mounting frame. The hanger is used to drive the spray head to rise and fall through the pull rope.

[0017] In some embodiments of the present application, the particle separator sealing test device also includes a circulation component, which includes a water pump, a filter screen and a reverse osmosis membrane. The water pump, the filter screen and the reverse osmosis membrane are arranged in sequence and connected to the transparent water tank through a water pipe to form a loop. The filter screen and the reverse osmosis membrane are used to remove suspended impurity particles and active ions in deionized water.

[0018] According to another aspect of the present application, a particle separator sealing test method is also provided, using the particle separator sealing test device described above, which comprises the following steps:

[0019] S100, using a particle separator sealing fixture to block the main oil path of the particle separator assembly, and then installing the particle separator assembly in a transparent water tank through a rotating shaft;

[0020] S200, driving the rotating shaft and the particle separator assembly to rotate through a driving mechanism, and spraying deionized water onto the outer surface of the particle separator assembly through a spray assembly to remove gas adhering to the outer surface of the particle separator assembly;

[0021] S300, in the first stage, the oil circuit sealing test is first performed on the rear section of the casing of the particle separator assembly, the first end of the vent pipe is connected to the preset air inlet of the particle separator assembly, the air inlet through hole of the positioning plate is blocked by the blocking assembly, the liquid level of the deionized water in the transparent water tank is controlled to completely immerse the particle separator assembly, and the particle separator assembly is driven to rotate by the driving mechanism at the same time, and the bubbles inside and outside the particle separator assembly are completely eliminated;

[0022] S400, opening the external gas source for ventilation, and connecting the compressed gas with a pressure of 0.2 MPa to the particle separator assembly through the ventilation pipe;

[0023] S500, under continuous ventilation, stand still for 5 to 10 minutes, and observe whether there are any bubbles generated by the surface of the particle separator component due to depression or poor installation. If there are no bubbles, the first stage sealing test is qualified, and the particle separator component can be taken out;

[0024] S600, in the second stage, the eddy current casing assembly is assembled to the particle separator assembly to perform a complete sealing test on the casing front section and the casing rear section. At this time, the air inlet through hole of the positioning plate is replaced with a pipe joint to replace the plugging assembly, and the first end of the ventilation pipe is connected to the pipe joint. The liquid level of the deionized water in the transparent water tank is controlled to completely immerse the particle separator assembly and the eddy current casing. At the same time, the particle separator assembly and the eddy current casing are driven to rotate by the driving mechanism to completely remove the bubbles inside and outside the particle separator assembly and the eddy current casing;

[0025] S700, opening the external gas source for ventilation, and connecting the compressed gas with a pressure P of 0.2 MPa to the particle separator assembly through the ventilation pipe;

[0026] S800. Under continuous ventilation, stand still for 5 to 10 minutes and observe whether the particle separator assembly and the eddy current casing surface are sunken or poorly installed to generate bubbles. If no bubbles are generated, the second stage sealing test is qualified.

[0027] In some embodiments of the present application, the compressed gas in steps S300 and S700 is mixed with non-toxic colored organic powder to make the compressed gas have color to assist in visual observation of the test results; after the test is completed, 0.6MPa high-pressure gas is introduced into the particle separator component cavity to remove residual colored compressed gas and organic powder.

[0028] This application has the following beneficial effects:

[0029] The particle separator sealing fixture of the present application blocks the first end of the main oil circuit of the rear section of the casing of the particle separator assembly through the positioning plate, blocks the second end of the main oil circuit of the rear section of the casing of the particle separator assembly through the bottom plate, and locks the positioning plate and the bottom plate through the connecting piece, so as to achieve enhanced and stable sealing of the main oil circuit. At the same time, the air intake hole on the positioning plate can be blocked by the blocking component to carry out the first stage of the sealing test, and then the air intake hole can be connected to the external air source by replacing the blocking component through the pipe joint to carry out the second stage of the sealing test, so as to meet the needs of the sealing test at different stages through a set of sealing fixtures, which is conducive to improving the efficiency of the sealing test, reducing the errors caused by the disassembly and assembly of the sealing fixture, avoiding the confusion and excessive workload caused by the cross-use of multiple sets of fixtures, and improving the accuracy of the sealing test.

[0030] The particle separator sealing test device of the present application uses a transparent water tank to hold deionized water as the test medium. Since deionized water removes active positive and negative ions (such as pure water medium of mineral ions such as sodium, calcium, iron, copper, chloride, bromide, etc.), it can prevent active ions from chemically reacting with the test piece, thereby improving the corrosion resistance of the parts. At the same time, the spray assembly above the transparent water tank sprays deionized water on the particle separator assembly before the sealing test, and flushes and removes the bubbles attached to its outer surface, thereby reducing interference with the sealing test. The particle separation assembly can be driven to rotate by a rotating shaft, and compressed gas is introduced into the particle separation assembly through a vent pipe while rotating, so that it is convenient and intuitive to observe whether bubbles are generated through the transparent water tank to judge the sealing of the ion separation assembly. The test operation is very intuitive and simple, which is conducive to rapid sealing testing and improves the overall assembly production efficiency of the engine.

[0031] The particle separator sealing test method of the present application adopts the above-mentioned sealing test device, and can rely on a set of sealing test devices to realize sealing tests at different stages, wherein in the first stage, the oil circuit sealing test is first performed on the rear section of the casing of the particle separator assembly, at this time, the air inlet hole of the positioning plate is blocked by a blocking component, and the vent pipe is connected to the preset air inlet of the particle separator assembly to pass compressed gas, and it can be visually observed through the transparent water tank whether bubbles are generated to judge whether the sealing test is qualified; when the second stage sealing test is required, the eddy current casing assembly is assembled to the particle separator assembly, and the sealing of the assembly can be tested. At this time, it is only necessary to replace the blocking component with a pipe joint and connect it to the air inlet hole of the positioning plate, connect the first end of the vent pipe to the pipe joint to pass compressed gas, and the rotating shaft also drives the particle separator assembly and the eddy current casing to rotate, and whether bubbles are generated is observed to judge whether the sealing test is qualified. The process steps of the overall sealing test have been greatly simplified compared to the use of multiple sets of test devices, and there is no need to repeatedly disassemble and assemble the test piece and the test fixture, which is conducive to ensuring the consistency of the test piece at each stage and effectively improving the accuracy of the sealing test.

[0032] Of course, any product implementing this application does not necessarily need to achieve all the advantages described above at the same time. In addition to the purposes, features and advantages described above, this application also has other purposes, features and advantages. The following will further describe this application in detail with reference to the figures. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0034] Figure 1 is a schematic diagram of the overall structure of the sealing fixture of the preferred embodiment of the present application;

[0035] Figure 2 is a schematic diagram of the test piece state in the first stage of the preferred embodiment of the present application;

[0036] Figure 3 is a schematic diagram of the test piece state in the second stage of the preferred embodiment of the present application;

[0037] Figure 4 It is a structural schematic diagram of a blocking component of a preferred embodiment of the present application;

[0038] Figure 5 is an exploded view of a base plate assembly of a preferred embodiment of the present application;

[0039] Figure 6 This is a schematic diagram of the connection between the connector and the base plate assembly of the preferred embodiment of the present application;

[0040] Figure 7 This is a schematic diagram of the connection between the connector and the positioning plate assembly of the preferred embodiment of the present application;

[0041] Figure 8 is a schematic diagram of the connection between the connector and the bushing in a preferred embodiment of the present application;

[0042] Fig. 9 It is a schematic diagram of the overall structure of the sealing test device of the preferred embodiment of the present application;

[0043] Legend: 100, particle separator assembly; 101, installation section; 200, spray assembly; 201, spray head; 202, hanger; 203, mounting frame; 300, test platform assembly; 301, transparent water tank; 302, operation button; 303, display; 304, ventilation pipe; 305, rotating shaft; 306, connecting baffle; 400, circulation assembly; 1, positioning plate assembly; 11, positioning plate; 12, locking member; 13, first sealing gasket ; 14. Second sealing gasket; 15. First sealing ring; 16. Second sealing ring; 17. Air inlet hole; 2. Bottom plate assembly; 21. Bottom plate; 22. Bushing; 221. Limit hole; 222. Snap-in hole; 23. Cylindrical pin; 24. Third sealing gasket; 25. Third sealing ring; 26. Locking piece; 27. Block; 3. Connecting piece; 31. Bump; 32. Snap-in part; 4. Pipe joint; 5. Sealing assembly; 51. Sealing piece; 52. Fourth sealing ring. DETAILED DESCRIPTION

[0044] The embodiments of the present application are described in detail below in conjunction with the accompanying drawings, but the present application can be implemented in a variety of different ways defined and covered below.

[0045] Figure 1 is a schematic diagram of the overall structure of the sealing fixture of the preferred embodiment of the present application; Figure 2 is a schematic diagram of the test piece state in the first stage of the preferred embodiment of the present application; Figure 3 is a schematic diagram of the test piece state in the second stage of the preferred embodiment of the present application; Figure 4 It is a structural schematic diagram of a blocking component of a preferred embodiment of the present application;

[0046] Figure 5 is an exploded view of a base plate assembly of a preferred embodiment of the present application; Figure 6 This is a schematic diagram of the connection between the connector and the base plate assembly of the preferred embodiment of the present application; Figure 7 This is a schematic diagram of the connection between the connector and the positioning plate assembly of the preferred embodiment of the present application; Figure 8 is a schematic diagram of the connection between the connector and the bushing in a preferred embodiment of the present application; Fig. 9 It is a schematic diagram of the overall structure of the sealing test device of the preferred embodiment of the present application.

[0047] A particle separator sealing fixture is used to block the main oil circuit of a particle separator assembly 100. The particle separator sealing fixture comprises a positioning plate assembly 1, a bottom plate assembly 2, a connecting piece 3, a pipe joint 4 and a blocking assembly 5:

[0048] The positioning plate assembly 1 includes a positioning plate 11, which is used to block the first end of the main oil circuit of the rear section of the casing of the particle separator assembly 100. An air intake hole 17 is opened on the positioning plate 11, and a pipe joint 4 is arranged in the air intake hole 17. The pipe joint 4 is used to connect to an external gas source and introduce the gas into the main oil circuit of the rear section of the casing. The sealing assembly 5 is used to replace the pipe joint 4 and install it in the air intake hole 17 to block the air intake hole 17. The base plate assembly 2 includes a base plate 21, which is used to block the second end of the main oil circuit of the rear section of the casing of the particle separator assembly 100. The connecting member 3 is used to connect and lock the positioning plate 11 and the base plate 21.

[0049] Here, the meaning of "connecting member 3" refers to a structure that is connected to the positioning plate 11 and the bottom plate 21 at the same time and locks and limits the two. In some embodiments, the connecting member 3 is a screw.

[0050] Here, the pipe joint 4 and the air intake hole 17 can be connected by threads, and a sealing gasket is provided at the contact surface between the pipe joint 4 and the end surface of the air intake hole 17 to prevent gas leakage at the connection of the pipe joint 4, thereby ensuring the sealing effect of the positioning plate 11 on the main oil circuit.

[0051] The particle separator sealing fixture of the present application blocks the first end of the main oil circuit of the rear section of the casing of the particle separator assembly 100 through the positioning plate 11, blocks the second end of the main oil circuit of the rear section of the casing of the particle separator assembly 100 through the bottom plate 21, and simultaneously connects and locks the positioning plate 11 and the bottom plate 21 through the connector 3, thereby achieving enhanced and stable sealing of the main oil circuit. At the same time, the air intake hole 17 on the positioning plate 11 can be blocked by the blocking component 5 to perform the first stage of the sealing test, and then the blocking component 5 can be replaced by the pipe joint 4 to connect the air intake hole 17 to the external air source to perform the second stage of the sealing test, so as to meet the needs of the sealing test at different stages through a set of sealing fixtures, which is conducive to improving the efficiency of the sealing test, reducing the errors caused by the disassembly and assembly of the sealing fixtures, avoiding the confusion and excessive workload caused by the cross-use of multiple sets of fixtures, and improving the accuracy of the sealing test.

[0052] Preferably, please refer to Figure 1 , 5 As shown in FIGS. 6 and 7 , the first end of the connecting member 3 is clamped with the base plate 21, and the positioning plate assembly 1 also includes a locking member 12. The second end of the connecting member 3 passes through the positioning plate 11, and the locking member 12 is used to be connected to the second end of the connecting member 3 by threading and to press the positioning plate 11 tightly against the first end of the main oil circuit of the rear section of the casing of the particle separator assembly 100.

[0053] It can be understood that the second end of the main oil circuit of the ion separator 100 is blocked by the bottom plate 21, the first end of the main oil circuit is blocked by the positioning plate 11, and the positioning plate 11 and the bottom plate 21 are "tightened" to each other by the connector 3 to achieve compression and sealing of the two ends of the main oil circuit, and then the locking member 12 is screwed into the second end of the connector 3 to press the positioning plate 11 against the first end of the main oil circuit to achieve locking and limiting of the positioning plate 11, the bottom plate 21 and the connector 3, ensuring a strong fit sealing effect. The first end of the connector 3 is clamped with the bottom plate 21, which can also facilitate the disassembly of the connector 3 and the bottom plate 21, and facilitate the disassembly and assembly of the sealing fixture.

[0054] Preferably, the locking member 12 is a cap nut, which can play the role of sealing the end cover. By tightening the cap nut, the positioning plate 11 is pressed tightly against the first end of the main oil circuit of the particle separator assembly 100.

[0055] Preferably, please refer to Figure 1 , 2 As shown in Figures 3, 5, 6, 7 and 8, a protrusion 31 is provided at the first end of the connecting member 3, and a groove-shaped clamping portion 32 is formed between the protrusion 31 and the connecting member 3. The base plate assembly 2 also includes a bushing 22, a locking member 26 and a clamping block 27. A mounting through hole is provided on the base plate 21, and the bushing 22 is used to be inserted into the mounting through hole and connected and locked with the base plate 21 by the locking member 26. A limiting hole 221 is provided on the bushing 22, and a clamping hole 222 is provided on the side wall of the limiting hole 221. The first end of the connecting member 3 is used to insert into the limiting hole 221 and make the clamping portion 32 correspond to the clamping hole 222. The clamping block 27 is used to insert into the clamping hole 222 and the clamping portion 32 in sequence to lock and limit the connecting member 3 and the bushing 22.

[0056] It can be understood that after the first end of the connecting member 3 is inserted into the limiting hole 221 of the bushing 22, the connecting member 3 is rotated so that the clamping portion 32 is set corresponding to the clamping hole 222. At this time, the clamping hole 222 and the clamping portion 32 can be inserted in sequence through the clamping block 27 to lock and limit the connecting member 3 and the bushing 22. Then, the bushing 22 and the connecting member 3 are connected and fastened to the base plate 21 as a whole through the locking member 26, so that the connecting member 3 and the base plate assembly 2 can be clamped. Then, the locking member 12 is used to "tighten" and lock the base plate assembly 2 and the positioning plate assembly 1 to each other, thereby enhancing the overall stability of the sealing fixture. The bushing 22 can be used to seal the connection between the connecting member 3 and the base plate 21, effectively ensuring the sealing effect of the assembly connection between the sealing fixture as a whole and the test piece, and ensuring the accuracy of the sealing test.

[0057] Preferably, please refer to Figure 5As shown, the base plate assembly 2 also includes a cylindrical pin 23, which is used to be inserted into a first guide hole preset on the bushing 22 and a second guide hole preset on the base plate 21 in sequence to guide the bushing 22 and the base plate 21. The cylindrical pin 23 is also used to limit the outer side of the block 27.

[0058] It is understandable that by guiding the bushing 22 and the base plate 21 through the cylindrical pin 23, the assembly efficiency of the two can be improved and the assembly accuracy can be ensured, so that the bushing 22 and the base plate 21 can be stably connected and fastened by the locking member 26. The locking member 26 can be a hexagonal bolt, and the use of standard parts can facilitate assembly operations and help reduce maintenance and replacement costs.

[0059] The cylindrical pin 23 can also limit the outer side of the clamping block 27, so as to prevent the clamping block 27 from slipping out when the connector 3 is clamped with the bushing 22, causing the connector 3 to be easily separated from the bushing 22. At the same time, after taking out the cylindrical pin 23, the clamping block 27 can be squeezed out of the clamping hole 222 by rotating the connector 3, and then the connector 3 can be easily taken out from the bushing 22, which is very convenient for disassembly and assembly of the connector 3 and the bottom plate assembly 2, and is convenient for improving the overall disassembly and assembly efficiency of the sealing clamp.

[0060] Preferably, please refer to Figure 1 As shown, the contact surface between the positioning plate 11 and the first end of the main oil circuit of the rear section of the casing of the particle separator assembly 100 is provided with a second sealing gasket 14 and a first sealing ring 15, the contact surface between the base plate 21 and the second end of the main oil circuit of the rear section of the casing of the particle separator assembly 100 is provided with a third sealing gasket 24 and a third sealing ring 25, and the sealing assembly 5 includes a sealing member 51, and the contact surface between the sealing member 51 and the air intake hole 17 is provided with a fourth sealing ring 52.

[0061] It is understandable that since a sealing fixture is required to seal the oil circuit of the particle separator assembly 100, if there is a problem with the sealing effect at the connection between the sealing fixture and the particle separator 100, it is easy to interfere with the effect of the sealing test, making it difficult to distinguish whether there is a defect in the assembly of the particle separator assembly 100 itself or the sealing fixture is unstable, affecting the accuracy of the sealing test. Therefore, multiple sealings are performed at various connections of the sealing fixture through sealing pads and sealing rings to ensure the sealing stability of various connections of the sealing assembly.

[0062] In addition, the present application also provides a particle separator sealing test device for performing a sealing test on a particle separator assembly 100, the particle separator sealing test device comprising a particle separator sealing fixture as described in any one of claims 1 to 5, as well as a spray assembly 200 and a test platform assembly 300, the particle separator sealing fixture is used to block the main oil circuit of the particle separator assembly 100, the test platform assembly 300 comprises a transparent water tank 301, a vent pipe 304, a rotating shaft 305 and a driving mechanism, the transparent water tank 301 is used to hold deionized water, and two rotating shafts 305 are provided, and the two rotating shafts 305 are provided on the transparent water tank 301. 1, the rotating shafts 305 on both sides are used to connect with the opposite ends of the particle separator assembly 100, the driving mechanism is connected to the rotating shaft 305 and is used to drive the particle separator assembly 100 to rotate through the rotating shaft 305, the first end of the vent pipe 304 is used to communicate with the preset air inlet of the particle separator assembly 100 or to communicate with the pipe joint 4, the second end of the vent pipe 304 is rotatably connected to the preset air inlet pipe on the transparent water tank 301, the air inlet pipe is used to connect with an external air source, the spray assembly 200 is arranged above the transparent water tank 301, and the spray assembly 200 is used to spray deionized water onto the outer surface of the particle separator assembly 100.

[0063] The particle separator sealing test device of the present application uses a transparent water tank 301 to hold deionized water as a test medium. Since deionized water removes active positive and negative ions (such as pure water medium of mineral ions such as sodium, calcium, iron, copper, chloride, bromide, etc.), it can prevent active ions from chemically reacting with the test piece, thereby improving the corrosion resistance of the parts. At the same time, the spray component 200 above the transparent water tank 301 sprays deionized water on the particle separator component 100 before the sealing test, and washes away the bubbles attached to its outer surface to reduce interference with the sealing test. The particle separation component 100 can be driven to rotate by the rotating shaft 305, and compressed gas is introduced into the particle separation component 100 through the ventilation pipe 304 while rotating, so that it is convenient and intuitive to observe whether bubbles are generated through the transparent water tank 301 to judge the sealing of the ion separation component 100. The test operation is very intuitive and simple, which is conducive to rapid sealing testing and improves the overall assembly production efficiency of the engine.

[0064] The test platform assembly 300 further includes an operation button 302 and a display 303. The operation button 302 can be used to conveniently operate the entire test platform assembly 300, and the display 303 can be used to conveniently observe the status of the drive mechanism and other equipment. In addition, the rotating shaft 305 can be connected to the mounting section 101 on the particle separator assembly 100 through the connecting baffle 306, so as to facilitate the assembly and disassembly of the test piece.

[0065] Preferably, please refer to Fig. 9As shown, the spray assembly 200 includes a spray head 201, a hanger 202 and a mounting frame 203. The mounting frame 203 is fixedly arranged and is used to mount the spray head 201 above the transparent water tank 301. The top of the spray head 201 is connected to the hanger 202 through a pull rope. The hanger 202 and the spray head 201 are located on opposite sides of the mounting frame 203. The hanger 202 is used to drive the spray head 201 to rise and fall through the pull rope.

[0066] It is understandable that the hanger 202 and the spray head 201 are located on both sides of the mounting frame 203 and are in a balanced state. The height of the spray head 201 can be adjusted by adjusting the height of the hanger 202 or increasing or decreasing the weight of the hanger 202. A hoisting mechanism can also be provided on the hanger 202, and the hoisting mechanism cooperates with the pull rope to drive the spray head 201 to rise and fall. In order to facilitate the assembly of the particle separator assembly 100 into the transparent water tank 301, the assembly of the particle separator assembly 100 can be facilitated by controlling the spray head 201 to rise and fall. At the same time, by adjusting the height of the spray head 201, the spray water flow can fully cover the particle separator assembly 100, ensuring the effect of spraying to remove bubbles attached to the outer surface of the particle separator assembly 100.

[0067] Preferably, please refer to Figure 1 As shown, the particle separator sealing test device also includes a circulation component 400, which includes a water pump, a filter screen and a reverse osmosis membrane. The water pump, the filter screen and the reverse osmosis membrane are arranged in sequence and connected to the transparent water tank 301 through a water pipe to form a loop. The filter screen and the reverse osmosis membrane are used to remove suspended impurity particles and active ions in deionized water.

[0068] It can be understood that the deionized water medium is transported through the water pipe to the filter layer, reverse osmosis membrane and other filter media by a water pump to remove suspended impurity particles and active ions in the medium water, ensuring that the deionized water is continuously circulated to purify the water for testing, which is beneficial to saving water resources and ensuring the purity of the deionized water in the transparent water tank 301, reducing the impact on the test piece and the sealing fixture, reducing the rate of corrosion, and increasing the overall service life of the sealing device.

[0069] According to another aspect of the present application, a particle separator sealing test method is also provided, using the particle separator sealing test device described above, which comprises the following steps:

[0070] S100, using a particle separator sealing fixture to seal the main oil path of the particle separator assembly 100, and then installing the particle separator assembly 100 in the transparent water tank 301 through the rotating shaft 305;

[0071] S200, driving the rotating shaft 305 and the particle separator assembly 100 to rotate through the driving mechanism, and spraying deionized water onto the outer surface of the particle separator assembly 100 through the spray assembly to remove the adhered gas on the outer surface of the particle separator assembly 100;

[0072] S300, in the first stage, the oil circuit sealing test is first performed on the rear section of the casing of the particle separator assembly 100, and the first end of the vent pipe 304 is connected to the preset air inlet of the particle separator assembly 100. At this time, the air inlet through hole 17 of the positioning plate 11 is blocked by the blocking assembly 5, and the liquid level of the deionized water in the transparent water tank 301 is controlled to completely immerse the particle separator assembly 100. At the same time, the particle separator assembly 100 is driven to rotate by the driving mechanism to completely eliminate the bubbles inside and outside the particle separator assembly 100;

[0073] S400, opening the external gas source for ventilation, and connecting the compressed gas with a pressure P of 0.2 MPa to the particle separator assembly 100 through the ventilation pipe 304;

[0074] S500, under continuous ventilation, stand still for 5 to 10 minutes, and observe whether there is a dent or poor installation on the surface of the particle separator assembly 100 that generates bubbles. If no bubbles are generated, the first stage sealing test is qualified, and the particle separator assembly 100 is taken out;

[0075] S600, in the second stage, the eddy current casing assembly is assembled to the particle separator assembly 100 to perform a complete sealing test on the casing front section and the casing rear section. At this time, the air inlet through hole 17 of the positioning plate 11 is replaced with the pipe joint 4 to replace the blocking assembly 5, the first end of the vent pipe 304 is connected to the pipe joint 4, and the liquid level of the deionized water in the transparent water tank 301 is controlled to completely immerse the particle separator assembly 100 and the eddy current casing. At the same time, the particle separator assembly 100 and the eddy current casing are driven to rotate by the driving mechanism to completely remove the bubbles inside and outside the particle separator assembly 100 and the eddy current casing;

[0076] S700, opening the external gas source for ventilation, and connecting the compressed gas with a pressure P of 0.2 MPa to the particle separator assembly 100 through the ventilation pipe 304;

[0077] S800. Under continuous ventilation, stand still for 5 to 10 minutes and observe whether the particle separator assembly 100 and the eddy current casing surface are sunken or poorly installed to generate bubbles. If no bubbles are generated, the second stage sealing test is qualified.

[0078] The particle separator sealing test method of the present application adopts the above-mentioned sealing test device, and can rely on a set of sealing test devices to realize sealing tests in different stages, wherein in the first stage, the oil circuit sealing test is first performed on the rear section of the casing of the particle separator assembly 100, at which time the air inlet hole 17 of the positioning plate 11 is blocked by the sealing assembly 5, and the vent pipe 304 is connected to the preset air inlet of the particle separator assembly 100 to introduce compressed gas, and it can be visually observed through the transparent water tank 301 whether bubbles are generated to judge whether the sealing test is qualified; when the second stage sealing test is required, the eddy current casing assembly is assembled to the particle separator assembly 100, and the sealing of the assembly can be tested. At this time, it is only necessary to replace the sealing assembly 5 with the pipe joint 4 and connect it to the air inlet hole 17 of the positioning plate 11, and the first end of the vent pipe 304 is connected to the pipe joint 4 to introduce compressed gas, and the rotating shaft also drives the particle separator assembly 100 and the eddy current casing to rotate, and it is judged whether the sealing test is qualified by observing whether bubbles are generated. The process steps of the overall sealing test have been greatly simplified compared to the use of multiple sets of test equipment, and there is no need to repeatedly disassemble and assemble the test piece and the test fixture, which is conducive to ensuring the consistency of the test piece at each stage and effectively improving the accuracy of the sealing test.

[0079] Preferably, the compressed gas in steps S300 and S700 is mixed with non-toxic colored organic powder to make the compressed gas colored to assist in visual observation of the test results; after the test is completed, 0.6 MPa high-pressure gas is introduced into the cavity of the particle separator assembly 100 to remove residual colored compressed gas and organic powder.

[0080] It can be understood that the compressed gas is mixed with colored organic powder (non-toxic) to give the compressed gas a certain color, which is conducive to visual observation of the test results, facilitates intuitive observation of the test, and effectively improves the efficiency of the test.

[0081] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0082] This article uses specific examples to illustrate the principles and implementation methods of this application. The above examples are only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection of this application.

Claims

1. A particle separator sealing fixture, used for sealing a main oil passage of a particle separator assembly (100), characterized in that: The particle separator sealing fixture comprises a positioning plate assembly (1), a bottom plate assembly (2), a connecting piece (3), a pipe joint (4) and a plugging assembly (5): The positioning plate assembly (1) comprises a positioning plate (11), the positioning plate (11) is used to block the first end of the main oil circuit of the rear section of the casing of the particle separator assembly (100), an air intake hole (17) is provided on the positioning plate (11), a pipe joint (4) is arranged in the air intake hole (17), the pipe joint (4) is used to connect to an external gas source and introduce gas into the main oil circuit of the rear section of the casing, a blocking assembly (5) is used to replace the pipe joint (4) and be installed in the air intake hole (17) to block the air intake hole (17), the bottom plate assembly (2) comprises a bottom plate (21), the bottom plate (21) is used to block the second end of the main oil circuit of the rear section of the casing of the particle separator assembly (100), and a connecting piece (3) is used to connect and lock the positioning plate (11) and the bottom plate (21).

2. A particle separator sealing fixture according to claim 1, characterized in that: The first end of the connecting member (3) is snap-connected to the base plate (21), the positioning plate assembly (1) further comprises a locking member (12), the second end of the connecting member (3) is arranged to pass through the positioning plate (11), and the locking member (12) is used to be connected to the second end of the connecting member (3) by means of threads and to press the positioning plate (11) tightly against the first end of the main oil circuit of the rear section of the casing of the particle separator assembly (100).

3. A particle separator sealing fixture according to claim 2, characterized in that: The first end of the connecting member (3) is provided with a protrusion (31), and a groove-shaped clamping portion (32) is formed between the protrusion (31) and the connecting member (3). The base plate assembly (2) further comprises a bushing (22), a locking member (26) and a clamping block (27). The base plate (21) is provided with a mounting through hole, and the bushing (22) is used to be inserted into the mounting through hole and connected and locked with the base plate (21) through the locking member (26). The bushing (22) is provided with a limiting hole (221), and a clamping hole (222) is provided on a side wall of the limiting hole (221). The first end of the connecting member (3) is used to be inserted into the limiting hole (221) and the clamping portion (32) is arranged correspondingly to the clamping hole (222). The clamping block (27) is used to be inserted into the clamping hole (222) and the clamping portion (32) in sequence to lock and limit the connecting member (3) and the bushing (22).

4. A particle separator sealing fixture according to claim 3, characterized in that: The base plate assembly (2) further comprises a cylindrical pin (23), which is used to be inserted into a first guide hole preset on the bushing (22) and a second guide hole preset on the base plate (21) in sequence to guide the bushing (22) and the base plate (21), and the cylindrical pin (23) is also used to limit the outer side of the clamping block (27).

5. A particle separator sealing fixture according to claim 1, characterized in that: A second sealing gasket (14) and a first sealing ring (15) are provided on a contact surface between the positioning plate (11) and a first end of a main oil passage at a rear section of a casing of a particle separator assembly (100); a third sealing gasket (24) and a third sealing ring (25) are provided on a contact surface between the bottom plate (21) and a second end of a main oil passage at a rear section of a casing of a particle separator assembly (100); the blocking assembly (5) comprises a blocking member (51); a fourth sealing ring (52) is provided on a contact surface between the blocking member (51) and the air intake hole (17).

6. A particle separator sealing test device, used for performing a sealing test on a particle separator assembly (100), characterized in that: The particle separator sealing test device comprises a particle separator sealing fixture as described in any one of claims 1 to 5, as well as a spray assembly (200) and a test platform assembly (300), wherein the particle separator sealing fixture is used to block the main oil circuit of the particle separator assembly (100), and the test platform assembly (300) comprises a transparent water tank (301), a vent pipe (304), a rotating shaft (305) and a driving mechanism, wherein the transparent water tank (301) is used to contain deionized water, and two rotating shafts (305) are provided, and the two rotating shafts (305) are arranged on opposite sides of the transparent water tank (301), and the rotating shafts (305) on both sides are used to separate particles from the particle separator. The two opposite ends of the particle separator assembly (100) are connected, the driving mechanism is connected to the rotating shaft (305) and is used to drive the particle separator assembly (100) to rotate through the rotating shaft (305), the first end of the ventilation pipe (304) is used to communicate with a preset air inlet of the particle separator assembly (100) or to communicate with the pipe joint (4), the second end of the ventilation pipe (304) is rotatably connected to a preset air inlet pipe on the transparent water tank (301), the air inlet pipe is used to connect to an external air source, the spray assembly (200) is supported above the transparent water tank (301), and the spray assembly (200) is used to spray deionized water onto the outer surface of the particle separator assembly (100).

7. A particle separator sealing test device according to claim 6, characterized in that: The spray assembly (200) comprises a spray head (201), a hanger (202) and a mounting frame (203); the mounting frame (203) is fixedly arranged; the mounting frame (203) is used to mount the spray head (201) above the transparent water tank (301); the top of the spray head (201) is connected to the hanger (202) via a pull rope; the hanger (202) and the spray head (201) are located on opposite sides of the mounting frame (203); the hanger (202) is used to drive the spray head (201) to be raised or lowered via the pull rope.

8. A particle separator sealing test device according to claim 6, characterized in that: The particle separator sealing test device also includes a circulation component (400), which includes a water pump, a filter screen and a reverse osmosis membrane. The water pump, the filter screen and the reverse osmosis membrane are arranged in sequence and connected to the transparent water tank (301) through a water pipe to form a loop. The filter screen and the reverse osmosis membrane are used to remove suspended impurity particles and active ions in deionized water.

9. A particle separator sealing test method, characterized in that: The particle separator sealing test device according to any one of claims 6 to 8 is used, which comprises the following steps: S100, using a particle separator sealing fixture to seal the main oil path of the particle separator assembly (100), and then installing the particle separator assembly (100) in the transparent water tank (301) via the rotating shaft (305); S200, driving the rotating shaft (305) and the particle separator assembly (100) to rotate through a driving mechanism, and spraying deionized water onto the outer surface of the particle separator assembly (100) through a spray assembly to remove gas adhering to the outer surface of the particle separator assembly (100); S300, in the first stage, an oil circuit sealing test is first performed on the rear section of the casing of the particle separator assembly (100), and the first end of the ventilation pipe (304) is connected to the preset air inlet of the particle separator assembly (100). At this time, the air inlet hole (17) of the positioning plate (11) is blocked by the blocking assembly (5), and the liquid level of the deionized water in the transparent water tank (301) is controlled to completely immerse the particle separator assembly (100). At the same time, the particle separator assembly (100) is driven to rotate by the driving mechanism to completely remove the bubbles inside and outside the particle separator assembly (100); S400, the external air source is turned on for ventilation, and the compressed gas with a pressure P of 0.2 MPa is connected to the particle separator assembly (100) through the ventilation pipe (304); S500, under continuous ventilation, stand still for 5 to 10 minutes, and observe whether there is a dent or poor installation on the surface of the particle separator assembly (100) that generates bubbles. If no bubbles are generated, the first stage sealing test is qualified, and the particle separator assembly (100) is removed; S600, in the second stage, the eddy current casing assembly is assembled to the particle separator assembly (100) to perform a complete sealing test on the casing front section and the casing rear section. At this time, the air inlet through hole (17) of the positioning plate (11) is replaced with the sealing assembly (5) by the pipe joint (4), the first end of the ventilation pipe (304) is connected to the pipe joint (4), and the liquid level of the deionized water in the transparent water tank (301) is controlled to completely immerse the particle separator assembly (100) and the eddy current casing. At the same time, the particle separator assembly (100) and the eddy current casing are driven to rotate by the driving mechanism to completely remove the bubbles inside and outside the particle separator assembly (100) and the eddy current casing; S700, opening an external gas source for ventilation, and connecting compressed gas with a pressure P of 0.2 MPa to the particle separator assembly (100) through a ventilation pipe (304); S800. Under continuous ventilation, stand still for 5 to 10 minutes and observe whether the particle separator assembly (100) and the vortex casing surface are sunken or improperly installed to generate bubbles. If no bubbles are generated, the second stage sealing test is qualified.

10. A particle separator sealing test method according to claim 9, characterized in that: The compressed gas in steps S300 and S700 is mixed with non-toxic colored organic powder to make the compressed gas colored to assist in visual observation of the test results; after the test is completed, 0.6MPa high-pressure gas is introduced into the cavity of the particle separator component (100) to remove residual colored compressed gas and organic powder.

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