A particle separator seal clamp and seal test apparatus and method

Abstract

The application discloses a particle separator sealing clamp and a sealing test device and a sealing test method, and belongs to the technical field of aero-engine testing. 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 assembly comprises a positioning plate. The positioning plate is used for plugging the first end of the main oil passage of the rear section of the casing of the particle separator assembly. An air inlet through hole is formed in the positioning plate. The pipe joint is arranged in the air inlet through hole. The pipe joint is used for connecting an air source and guiding the air into the main oil passage of the rear section of the casing. The plugging assembly is used for replacing the pipe joint and plugging the air inlet through hole. The bottom plate assembly comprises a bottom plate. The bottom plate is used for plugging the second end of the main oil passage of the rear section of the casing of the particle separator assembly. The connecting piece is used for connecting and locking the positioning plate and the bottom plate. The application can adapt to the sealing test requirements of different stages through a set of sealing clamps, and improves the test efficiency and the test accuracy.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aero-engine test, in particular, relates to a particle separator sealing clamp. In addition, the present application also relates to a sealing test device comprising the particle separator sealing clamp, and a sealing test method using the particle separator sealing test device. BACKGROUND

[0002] The information provided in this section is for the purpose of generally presenting the context of the application. To the extent that the descriptions in this section describe the work of the inventors, and to the extent that the descriptions are not common general knowledge of people of ordinary skill in the art, this section describes the work in a manner deemed most useful in particular to the present application. The work described in this section is not, and is not intended to be, a prior art to the present application.

[0003] During the assembly process of a certain type of aero-engine particle separator unit, the particle separator unit needs to be subjected to a sealing test for checking 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 cavity. If the assembly is unqualified or the test equipment cannot meet the checking requirements, it will lead to sealing error, causing oil leakage during engine operation or affecting the normal operation of the engine, and the quality and safety of the engine cannot be guaranteed.

[0004] If the sealing effect of the engine particle separator assembly is not good, the test device and the part contact position will leak air, the oil circuit of the particle separator assembly cannot be well sealed, and the pressure in the unit cavity cannot meet the test requirements, which is insufficient to check whether the unit assembly is qualified or whether the casing body has defects such as sand holes.

[0005] Through research, it is found that the current sealing test has the following problems: due to the use of multiple sets of test clamps for testing in stages, the workload is large, and the cross use of multiple sets of test clamps is relatively chaotic; the sealing effect of the test device is not high, the test qualified rate is difficult to further improve, and the test device is prone to corrosion and other phenomena; the test device does not have the freedom of rotation and lifting, which is not convenient for testing and checking, and is not conducive to improving the test efficiency.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0007] In view of at least one of the above technical problems, the present application provides a particle separator sealing clamp, which can seal the main oil passage of a particle separator assembly through a positioning plate assembly and a bottom plate assembly cooperating with a connecting piece, and only needs to replace a plugging assembly through a pipe joint in different stages of sealing test of the particle separator assembly, so that the change of the air inlet passage can be realized to adapt to the needs of different stages of sealing test through a set of sealing clamps.

[0008] Meanwhile, the present application also provides a sealing test device comprising the above particle separator sealing clamp, and a sealing test method using the above ion separator sealing test device, which can realize different stages of sealing test through a set of sealing test devices, avoids the large workload and large assembly operation error caused by cross use of multiple sets of clamps, and effectively improves the efficiency and accuracy of the sealing test.

[0009] According to an aspect of the present application, a particle separator sealing clamp is provided for plugging the main oil passage of a particle separator assembly, which comprises a positioning plate assembly, a bottom plate assembly, a connecting piece, a pipe joint and a plugging assembly.

[0010] The positioning plate assembly comprises a positioning plate for plugging the first end of the main oil passage of the rear section of the casing of the particle separator assembly, the positioning plate is provided with an air inlet through hole, the pipe joint is arranged in the air inlet through hole, the pipe joint is used for connecting an air source and guiding the gas into the main oil passage of the rear section of the casing, the plugging assembly is used for replacing the pipe joint and plugging the air inlet through hole, and the bottom plate assembly comprises a bottom plate for plugging the second end of the main oil passage of the rear section of the casing of the particle separator assembly, and the connecting piece is used for connecting and locking the positioning plate and the bottom plate.

[0011] In some embodiments of the present application, the first end of the connecting piece is clamped with the bottom plate, the positioning plate assembly further comprises a locking piece, the second end of the connecting piece is arranged through the positioning plate, and the locking piece is used for threadedly connecting with the second end of the connecting piece and pressing the positioning plate tightly against the first end of the main oil passage of the rear section of the casing of the particle separator assembly.

[0012] In some embodiments of the present application, the first end of the connecting piece is provided with a protrusion, a clamping portion in the form of a groove is formed between the protrusion and the connecting piece, the bottom plate assembly further comprises a bushing, a locking piece and a clamping block, the bottom plate is provided with a mounting through hole, the bushing is arranged in the mounting through hole and connected and locked with the bottom plate through the locking piece, the bushing is provided with a limiting hole, a clamping hole is formed in the side wall of the limiting hole, the first end of the connecting piece is arranged in the limiting hole and the clamping portion is arranged corresponding to the clamping hole, and the clamping block is arranged in the clamping hole and the clamping portion in sequence to lock and limit the connecting piece and the bushing.

[0013] In some embodiments of the present application, the bottom plate assembly further comprises a cylindrical pin for sequentially inserting into a first guide hole pre-set on the bushing and a second guide hole pre-set on the bottom plate to guide the bushing and the bottom plate, and for limiting the outer side of the clamping block.

[0014] In some embodiments of the present application, the contact surface of the positioning plate with the first end of the main oil passage of the rear section of the casing of the particle separator assembly is provided with a second sealing gasket and a first sealing ring, the contact surface of the bottom plate with the second end of the main oil passage of the rear section of the casing of the particle separator assembly is provided with a third sealing gasket and a third sealing ring, and the blocking assembly comprises a blocking piece, and the contact surface of the blocking piece with the air inlet through hole is provided with a fourth sealing ring.

[0015] In addition, the present application also provides a particle separator sealing test device for sealing test of the particle separator assembly, which comprises the particle separator sealing clamp according to any one of claims 1-5, a spraying assembly and a test platform assembly, the particle separator sealing clamp is used to block the main oil passage of the particle separator assembly, and the test platform assembly comprises a transparent water tank, an air pipe, two rotating shafts and a driving mechanism, the transparent water tank is used to contain deionized water, the two rotating shafts are arranged on opposite sides of the transparent water tank, the rotating shafts on the two sides are used to be connected with opposite ends of the particle separator assembly, the driving mechanism is connected with the rotating shafts and is used to drive the particle separator assembly to rotate through the rotating shafts, a first end of the air pipe is used to be communicated with a pre-set air inlet of the particle separator assembly or a pipe joint, a second end of the air pipe is rotatably connected with a pre-set air inlet pipe of the transparent water tank, the air inlet pipe is used to be connected with an air source, and the spraying assembly is arranged above the transparent water tank and is used to spray deionized water to the outer surface of the particle separator assembly.

[0016] In some embodiments of the present application, the spraying assembly comprises a spraying head, a lifting tool and a mounting rack, the mounting rack is fixedly arranged and is used to support the spraying head above the transparent water tank, the top of the spraying head is connected with the lifting tool through a pull rope, the lifting tool is arranged on opposite sides of the spraying head on the mounting rack, and the lifting tool is used to drive the spraying head to ascend and descend through the pull rope.

[0017] In some embodiments of the present application, the particle separator sealing test device further comprises a circulating assembly, the circulating assembly comprises a water pump, a filter screen and a reverse osmosis membrane, the water pump, the filter screen and the reverse osmosis membrane are sequentially arranged and are connected with the transparent water tank through a water pipe to form a loop, and the filter screen and the reverse osmosis membrane are used to remove suspended impurity particles and active ions in the deionized water.

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

[0019] S100, adopt particle separator sealing clamp to seal the main oil circuit of the particle separator assembly, and then install the particle separator assembly in the transparent water tank through the rotating shaft;

[0020] S200, drive the rotating shaft and the particle separator assembly through the driving mechanism, and spray deionized water to the outer surface of the particle separator assembly through the spraying assembly to remove the adhered gas on the outer surface of the particle separator assembly;

[0021] S300, first, seal the oil circuit of the rear section of the particle separator assembly, connect the first end of the air pipe to the preset air inlet of the particle separator assembly, block the air inlet hole of the positioning plate with the blocking assembly, control the liquid level of the deionized water in the transparent water tank to completely immerse the particle separator assembly, and drive the particle separator assembly to rotate through the driving mechanism to completely remove the bubbles inside and outside the particle separator assembly;

[0022] S400, open the external air source to ventilate, and connect the compressed gas with a pressure P of 0.2 MPa to the particle separator assembly through the air pipe;

[0023] S500, in the state of continuous ventilation, keep still for 5-10 minutes, observe whether there are bubbles generated due to defects or installation defects on the surface of the particle separator assembly, if no bubble is generated, the first stage sealing test is qualified, and the particle separator assembly is taken out;

[0024] S600, in the second stage, assemble the vortex casing assembly to the particle separator assembly to conduct complete sealing test on the front section and the rear section of the casing, replace the blocking assembly with the pipe joint at the air inlet hole of the positioning plate, connect the first end of the air pipe to the pipe joint, control the liquid level of the deionized water in the transparent water tank to completely immerse the particle separator assembly and the vortex casing, and drive the particle separator assembly and the vortex casing to rotate through the driving mechanism to completely remove the bubbles inside and outside the particle separator assembly and the vortex casing;

[0025] S700, open the external air source to ventilate, and connect the compressed gas with a pressure P of 0.2 MPa to the particle separator assembly through the air pipe;

[0026] S800, in the state of continuous ventilation, keep still for 5-10 minutes, observe whether there are bubbles generated due to defects or installation defects on the surface of the particle separator assembly and the vortex casing, if no bubble is 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, so that the compressed gas has color, which assists visual observation of the test results; after the test is completed, 0.6 MPa high-pressure gas is introduced to remove residual colored compressed gas and organic powder in the cavity of the particle separator assembly.

[0028] The present application has the following beneficial effects:

[0029] The particle separator sealing fixture of the present application blocks the first end of the main oil passage of the rear section of the particle separator assembly through the positioning plate, blocks the second end of the main oil passage of the rear section of the particle separator assembly through the bottom plate, and connects and locks the positioning plate and the bottom plate through the connecting piece to realize the reinforced and stable sealing of the main oil passage. The air inlet through hole on the positioning plate can be blocked by the blocking assembly to perform the first stage of sealing test, and then the air inlet through hole can be connected with the external air source through the pipe joint to replace the blocking assembly to perform the second stage of sealing test, so as to realize the demand of adapting to different stages of sealing test through one set of sealing fixture, improve the efficiency of sealing test, reduce the error caused by disassembly and assembly of the sealing fixture, avoid the confusion and excessive workload caused by cross use of multiple fixtures, and improve the accuracy of sealing test.

[0030] The particle separator sealing test device of the present application fills deionized water as test medium through the transparent water tank. Since the deionized water removes active positive and negative ions (such as sodium, calcium, iron, copper, chloride, bromide, and other mineral ion pure water medium), it can prevent active ions from reacting with the test piece to improve the corrosion resistance of the part. At the same time, the spraying assembly above the transparent water tank sprays deionized water on the particle separator assembly before the sealing test to flush and remove the air bubbles attached to the surface of the particle separator assembly, reducing the interference with the sealing test. The particle separation assembly can be rotated by the rotating shaft, and at the same time, compressed gas is introduced into the particle separation assembly through the air pipe during rotation, which is convenient and intuitive to observe whether air bubbles are generated through the transparent water tank to judge the sealing performance of the ion separation assembly. The test operation is very intuitive and simple, which is conducive to rapid sealing test and improves the overall assembly production efficiency of the engine.

[0031] The particle separator sealing test method of the application adopts the sealing test device, and can realize sealing test at different stages by relying on a set of sealing test device. In the first stage, the oil circuit sealing test of the rear part of the particle separator assembly is first performed. At this time, the air inlet hole of the positioning plate is blocked by the blocking assembly, the air pipe is connected with the preset air inlet of the particle separator assembly to pass in the compressed gas, and whether there is bubble generation can be observed to determine whether the sealing test is qualified. When the second stage sealing test is needed, the vortex casing assembly is assembled to the particle separator assembly to check the sealing performance of the assembly. At this time, only the pipe joint is replaced to replace the blocking assembly connected to the air inlet hole of the positioning plate, the first end of the air pipe is connected with the pipe joint to pass in the compressed gas, the rotating shaft also drives the particle separator assembly and the vortex casing to rotate, and whether there is bubble generation can be observed to determine whether the sealing test is qualified. Compared with using multiple sets of test devices, the flow steps of the overall sealing test are greatly simplified, and the test piece and the test fixture do not need to be repeatedly disassembled and assembled, which is beneficial to ensure the consistency of the test piece at each stage and effectively improve the accuracy of the sealing test.

[0032] Of course, implementing any product of the present application does not necessarily require achieving all the advantages described above at the same time. In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0033] The accompanying drawings, which form a part of the present application, are intended to provide further understanding of the present application, and the illustrative embodiments of the present application and their description serve the purpose of explaining the present application. The accompanying drawings do not constitute an inappropriate 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 of the first stage of the preferred embodiment of the present application;

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

[0037] Figure 4 is a schematic diagram of the structure of the blocking assembly of the preferred embodiment of the present application;

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

[0039] Figure 6 is a connection diagram of the connecting piece and the base plate assembly of the preferred embodiment of the present application;

[0040] Figure 7 is a schematic diagram of the connection between the connecting piece 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 connecting piece and the bushing of the preferred embodiment of the present application;

[0042] Figure 9 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, mounting section; 200, spraying assembly; 201, spray head; 202, lifting tool; 203, mounting rack; 300, test platform assembly; 301, transparent water tank; 302, operation button; 303, display; 304, air pipe; 305, rotating shaft; 306, connecting baffle; 400, circulating assembly; 1, positioning plate assembly; 11, positioning plate; 12, locking piece; 13, first sealing gasket; 14, second sealing gasket; 15, first sealing ring; 16, second sealing ring; 17, air inlet through hole; 2, bottom plate assembly; 21, bottom plate; 22, bushing; 221, limiting hole; 222, clamping hole; 23, cylindrical pin; 24, third sealing gasket; 25, third sealing ring; 26, locking piece; 27, clamping block; 3, connecting piece; 31, protruding block; 32, clamping part; 4, pipe joint; 5, plugging assembly; 51, plugging piece; 52, fourth sealing ring. DETAILED DESCRIPTION

[0044] The embodiments of the present application are described in detail below with reference to the accompanying drawings, but the present application can be implemented in various different ways as defined and covered by the following.

[0045] Figure 1 is a schematic diagram of the overall structure of the sealing clamp of the preferred embodiment of the present application; Figure 2 is a schematic diagram of the test piece state of the first stage of the preferred embodiment of the present application; Figure 3 is a schematic diagram of the test piece state of the second stage of the preferred embodiment of the present application; Figure 4 is a schematic diagram of the structure of the plugging assembly of the preferred embodiment of the present application;

[0046] Figure 5 is an exploded view of the bottom plate assembly of the preferred embodiment of the present application; Figure 6 is a schematic diagram of the connection between the connecting piece and the bottom plate assembly of the preferred embodiment of the present application; Figure 7 is a schematic diagram of the connection between the connecting piece and the positioning plate assembly of the preferred embodiment of the present application; Figure 8 is a schematic diagram of the connection between the connecting piece and the bushing of the preferred embodiment of the present application; Figure 9 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 clamp for sealing the main oil passage of a particle separator assembly 100, the particle separator sealing clamp comprises a positioning plate assembly 1, a bottom plate assembly 2, a connecting piece 3, a pipe joint 4 and a sealing assembly 5:

[0048] The positioning plate assembly 1 comprises a positioning plate 11 for sealing the first end of the main oil passage of the rear section of the casing of the particle separator assembly 100, the positioning plate 11 is provided with an air inlet through hole 17, the pipe joint 4 is arranged in the air inlet through hole 17, the pipe joint 4 is used for connecting an air source and guiding air into the main oil passage of the rear section of the casing, the sealing assembly 5 is used for replacing the pipe joint 4 and sealing the air inlet through hole 17, the bottom plate assembly 2 comprises a bottom plate 21 for sealing the second end of the main oil passage of the rear section of the casing of the particle separator assembly 100, and the connecting piece 3 is used for connecting and locking the positioning plate 11 and the bottom plate 21.

[0049] Here, the connecting piece 3 means a structure that is connected to the positioning plate 11 and the bottom plate 21 and locks the two, and in some embodiments, the connecting piece 3 is a screw rod.

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

[0051] The particle separator sealing clamp of the present application seals the first end of the main oil passage of the rear section of the casing of the particle separator assembly 100 by the positioning plate 11, seals the second end of the main oil passage of the rear section of the casing of the particle separator assembly 100 by the bottom plate 21, and locks the positioning plate 11 and the bottom plate 21 by the connecting piece 3, thereby achieving a stable sealing of the main oil passage. Meanwhile, the air inlet through hole 17 on the positioning plate 11 can be sealed by the sealing assembly 5 to perform a first-stage sealing test, and then the sealing assembly 5 can be replaced by the pipe joint 4 to connect the air inlet through hole 17 to an external air source to perform a second-stage sealing test, thereby realizing the needs of different stages of sealing test by one set of sealing clamp, improving the efficiency of sealing test, reducing the errors caused by disassembly and assembly of the sealing clamp, avoiding the confusion and excessive workload caused by the cross use of multiple sets of clamps, and improving the accuracy of the sealing test.

[0052] Preferably, please refer to Figure 1 , 5 , 6, 7, the first end of the connecting piece 3 is clamped with the bottom plate 21, the positioning plate assembly 1 further comprises a locking piece 12, the second end of the connecting piece 3 penetrates through the positioning plate 11, and the locking piece 12 is used for threadedly connecting with the second end of the connecting piece 3 and pressing the positioning plate 11 tightly against the first end of the main oil passage 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 “tensed” with each other through the connecting piece 3, so as to realize the compression sealing of the two ends of the main oil circuit. Then, the positioning plate 11 is tightly abutted against the first end of the main oil circuit by rotating the locking piece 12 into the second end of the connecting piece 3, so as to realize the locking and limiting of the positioning plate 11, the bottom plate 21 and the connecting piece 3, and ensure the sealing effect of the strong adhesion. The first end of the connecting piece 3 is clamped with the bottom plate 21, which can also facilitate the disassembly of the connecting piece 3 and the bottom plate 21, and facilitate the disassembly of the sealing clamp.

[0054] Preferably, the locking piece 12 is a cover-shaped nut, which can play the effect of sealing the end cover, and the positioning plate 11 is tightly adhered to the first end of the main oil circuit of the particle separator assembly 100 by tightening the cover-shaped nut.

[0055] Preferably, please refer to Figure 1 , 2 , 3, 5, 6, 7, 8, the first end of the connecting piece 3 is provided with a protrusion 31, and a recess-shaped clamping portion 32 is formed between the protrusion 31 and the connecting piece 3. The bottom plate assembly 2 further comprises a bushing 22, a locking piece 26 and a clamping block 27. The bottom plate 21 is provided with a mounting hole. The bushing 22 is inserted into the mounting hole and connected and locked with the bottom plate 21 by the locking piece 26. The bushing 22 is provided with a limiting hole 221. The side wall of the limiting hole 221 is provided with a clamping hole 222. The first end of the connecting piece 3 is inserted into the limiting hole 221 and the clamping portion 32 is correspondingly arranged with the clamping hole 222. The clamping block 27 is inserted into the clamping hole 222 and the clamping portion 32 in sequence to lock and limit the connecting piece 3 and the bushing 22.

[0056] It can be understood that after the first end of the connecting piece 3 is inserted into the limiting hole 221 of the bushing 22, the connecting piece 3 is rotated to make the clamping portion 32 correspondingly arranged with the clamping hole 222. At this time, the connecting piece 3 and the bushing 22 can be locked and limited by the clamping block 27 inserted into the clamping hole 222 and the clamping portion 32 in sequence. Then, the bushing 22 and the connecting piece 3 are connected and fastened with the bottom plate 21 by the locking piece 26, so as to realize the clamping of the connecting piece 3 and the bottom plate assembly 2. Then, the bottom plate assembly 2 and the positioning plate assembly 1 are “tensed” and locked together by the locking piece 12, so as to strengthen the stability of the sealing clamp as a whole. The bushing 22 can play the sealing effect of the connection between the connecting piece 3 and the bottom plate 21, effectively ensure the sealing effect of the assembly connection between the sealing clamp as a whole and the test piece, and ensure the accuracy of the sealing test.

[0057] Preferably, please refer to Figure 5As shown, the bottom plate assembly 2 further comprises a cylindrical pin 23 for being sequentially inserted into a first guide hole preformed on the bushing 22 and a second guide hole preformed on the bottom plate 21 to guide the bushing 22 and the bottom plate 21, and the cylindrical pin 23 is further used for limiting the outer side of the clamping block 27.

[0058] It can be understood that the bushing 22 and the bottom plate 21 are guided by the cylindrical pin 23, which can facilitate to improve the assembly efficiency of the two and ensure the assembly accuracy, so as to stably connect and fasten the bushing 22 and the bottom plate 21 by the locking piece 26. The locking piece 26 can be a hexagonal head bolt, which can facilitate assembly operation and is beneficial to reduce maintenance and replacement costs.

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

[0060] Preferably, referring to Figure 1 As shown, the contact surface of the positioning plate 11 and the first end of the main oil way 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 of the bottom plate 21 and the second end of the main oil way 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 blocking assembly 5 comprises a blocking piece 51, and the contact surface of the blocking piece 51 and the air inlet through hole 17 is provided with a fourth sealing ring 52.

[0061] It can be understood that since the oil way of the particle separator assembly 100 needs to be sealed by the sealing clamp, if there is a problem with the sealing effect of the connection between the sealing clamp and the particle separator 100, it will interfere with the sealing test effect, making it difficult to distinguish whether the assembly of the particle separator assembly 100 itself has defects or the sealing clamp is not stably connected, affecting the accuracy of the sealing test. Therefore, the sealing gasket and the sealing ring are used for multiple sealing at the connection of the sealing clamp, which can ensure the sealing stability of the connection of the sealing assembly.

[0062] In addition, the application also provides a particle separator sealing test device for sealing test of the particle separator assembly 100, which comprises the particle separator sealing clamp according to any one of claims 1-5, a spraying assembly 200 and a test platform assembly 300. The particle separator sealing clamp is used to block the main oil passage of the particle separator assembly 100. The test platform assembly 300 comprises a transparent water tank 301, an air pipe 304, two rotating shafts 305 and a driving mechanism. The transparent water tank 301 is used to contain deionized water. The two rotating shafts 305 are arranged on opposite sides of the transparent water tank 301. The two rotating shafts 305 are used to be connected with opposite ends of the particle separator assembly 100. The driving mechanism is connected with the rotating shafts 305 and is used to drive the particle separator assembly 100 to rotate through the rotating shafts 305. The first end of the air pipe 304 is used to be communicated with a preset air inlet of the particle separator assembly 100 or a pipe joint 4. The second end of the air pipe 304 is rotatably connected with a preset air inlet pipe of the transparent water tank 301. The air inlet pipe is used to be connected with an air source. The spraying assembly 200 is arranged above the transparent water tank 301. The spraying assembly 200 is used to spray deionized water to the outer surface of the particle separator assembly 100.

[0063] The particle separator sealing test device of the application contains deionized water as test medium through the transparent water tank 301. Since the deionized water removes active positive and negative ions (such as sodium, calcium, iron, copper, chloride, bromide and other mineral ion pure water medium), it can prevent the active ions from chemically reacting with the test piece, improve the corrosion resistance of the part, and at the same time, the spraying assembly 200 above the transparent water tank 301 sprays deionized water to the particle separator assembly 100 before the sealing test, which can flush and remove the attached air bubbles on the outer surface of the particle separator assembly 100, reducing the interference with the sealing test. The particle separator assembly 100 can be driven to rotate through the rotating shafts 305, and at the same time, the compressed gas is introduced into the particle separator assembly 100 through the air pipe 304 when rotating, which can conveniently and intuitively observe whether air bubbles are generated through the transparent water tank 301 to judge the sealing performance of the ion separation assembly 100. The test operation is very intuitive and simple, which is conducive to rapid sealing test and improves the overall assembly production efficiency of the engine.

[0064] In addition, the rotating shafts 305 can be connected with the mounting joints 101 on the particle separator assembly 100 through the connecting baffles 306, which facilitates the assembly and disassembly of the test piece.

[0065] Preferably, please refer to Figure 9As shown, the spraying assembly 200 comprises a spraying head 201, a hanger 202 and a mounting rack 203, the mounting rack 203 is fixedly arranged, the mounting rack 203 is used for erecting the spraying head 201 above the transparent water tank 301, the top of the spraying head 201 is connected with the hanger 202 through a pull rope, the hanger 202 is located on the opposite sides of the mounting rack 203 with the spraying head 201, and the hanger 202 is used for driving the spraying head 201 to ascend and descend through the pull rope.

[0066] It can be understood that the hanger 202 and the spraying head 201 are located on the two sides of the mounting rack 203 and are in a balanced state, the height of the spraying head 201 can be adjusted by adjusting the height of the hanger 202 or increasing or decreasing the weight of the hanger 202, and a winch mechanism can also be arranged on the hanger 202 to drive the spraying head 201 to ascend and descend through the pull rope. 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 spraying head 201 to ascend and descend, and the spraying water flow can fully cover the particle separator assembly 100 by adjusting the height of the spraying head 201, so as to ensure the effect of removing the bubbles adhered to the outer surface of the particle separator assembly 100.

[0067] Preferably, referring to Figure 1 As shown, the particle separator sealing test device further comprises a circulating assembly 400, the circulating assembly 400 comprises a water pump, a filter screen and a reverse osmosis membrane, the water pump, the filter screen and the reverse osmosis membrane are sequentially arranged and are communicated with the transparent water tank 301 through a water pipe to form a loop, and the filter screen and the reverse osmosis membrane are used for removing suspended impurity particles and active ions in the deionized water.

[0068] It can be understood that the deionized water medium is transported to the filter medium such as the filter layer and the reverse osmosis membrane through the water pump to remove the suspended impurity particles and the active ions in the medium water, so as to ensure that the deionized water is continuously circulated and purified for the test, which is beneficial to saving water resources, ensuring the purity of the deionized water in the transparent water tank 301, reducing the influence on the test piece and the sealing clamp, reducing the corrosion speed, and improving the service life of the sealing device as a whole.

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

[0070] S100, the main oil way of the particle separator assembly 100 is blocked by using the particle separator sealing clamp, and then the particle separator assembly 100 is installed in the transparent water tank 301 through the rotating shaft 305;

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

[0072] S300, first, seal the oil circuit of the rear section of the particle separator assembly 100, the first end of the air pipe 304 is communicated with the pre-set air inlet of the particle separator assembly 100, at this time, the air inlet through hole 17 of the positioning plate 11 is sealed by the sealing assembly 5, 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 particle separator assembly 100 is rotated by the driving mechanism to completely remove the bubbles inside and outside the particle separator assembly 100;

[0073] S400, open the external air source to ventilate, and the compressed gas with a pressure P of 0.2 MPa is connected to the particle separator assembly 100 through the air pipe 304;

[0074] S500, in the state of continuous ventilation, stand still for 5-10 minutes, and observe whether there are bubbles generated due to defects or installation defects on the surface of the particle separator assembly 100, if no bubble is generated, the first stage sealing test is qualified, and the particle separator assembly 100 is taken out;

[0075] S600, in the second stage, the vortex casing assembly is assembled to the particle separator assembly 100 to perform a complete sealing test on the front section and the rear section of the casing, at this time, the air inlet through hole 17 of the positioning plate 11 is replaced by the pipe joint 4 instead of the sealing assembly 5, the first end of the air pipe 304 is communicated with the pipe joint 4, 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 vortex casing, and the particle separator assembly 100 and the vortex casing are rotated by the driving mechanism to completely remove the bubbles inside and outside the particle separator assembly 100 and the vortex casing;

[0076] S700, open the external air source to ventilate, and the compressed gas with a pressure P of 0.2 MPa is connected to the particle separator assembly 100 through the air pipe 304;

[0077] S800, in the state of continuous ventilation, stand still for 5-10 minutes, and observe whether there are bubbles generated due to defects or installation defects on the surface of the particle separator assembly 100 and the vortex casing, if no bubble is generated, the second stage sealing test is qualified.

[0078] The particle separator sealing test method of the present application adopts the sealing test device described above, and can realize sealing tests at different stages by relying on one set of sealing test device. In the first stage, the oil circuit sealing test is first performed on the rear section of the machine case of the particle separator assembly 100. At this time, the air inlet hole 17 of the positioning plate 11 is plugged by the plugging assembly 5, the air inlet pipe 304 is in communication with the pre-set air inlet of the particle separator assembly 100 to introduce compressed gas, and whether there is bubble generation can be observed through the transparent water tank 301 to determine whether the sealing test is qualified. When the second stage sealing test is needed, the vortex machine case assembly is assembled to the particle separator assembly 100 to check the sealing performance of the assembly. At this time, only the pipe joint 4 is replaced with the plugging assembly 5 to be connected to the air inlet hole 17 of the positioning plate 11, the first end of the air inlet pipe 304 is in communication with the pipe joint 4 to introduce compressed gas, and the rotating shaft also drives the particle separator assembly 100 and the vortex machine case to rotate. Whether there is bubble generation can be observed to determine whether the sealing test is qualified. The flow steps of the overall sealing test are greatly simplified compared with using multiple sets of test devices, and the test piece and the test fixture do not need to be repeatedly disassembled and assembled, which is beneficial to ensure the consistency of the test piece at each stage and effectively improve the accuracy of the sealing test.

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

[0080] It can be understood that the compressed gas is mixed with non-toxic colored organic powder, so that the compressed gas has a certain color, which is beneficial to visual observation of the test results, convenient and intuitive observation of the test, and effective improvement of the test efficiency.

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

[0082] The principles and implementations of the present application are described herein with specific examples. The above examples are only used to help understand the method and its core idea of the present application. The above description is only the preferred embodiments of the present application. It should be pointed out that due to the limited nature of the language expression, there are objectively infinite specific structures, and for ordinary skilled persons in the art, without departing from the principles of the present application, a number of improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner. The improvements, refinements, changes or combinations, or the application of the inventive concept and technical solution to other fields without improvement, shall be regarded as the protection of the present application.

Claims

1. A particle separator seal clamp for plugging a main oil passage of a particle separator assembly (100), characterized in that, The particle separator sealing clamp comprises a positioning plate assembly (1), a bottom plate assembly (2), a connecting piece (3), a pipe joint (4) and a blocking assembly (5). The positioning plate assembly (1) comprises a positioning plate (11) used for blocking a first end of a main oil passage of a rear section of a casing of a particle separator assembly (100), the positioning plate (11) is provided with an air inlet through hole (17), the pipe joint (4) is arranged in the air inlet through hole (17) and used for connecting an air source and guiding air into the main oil passage of the rear section of the casing, the blocking assembly (5) is used for replacing the pipe joint (4) and is arranged in the air inlet through hole (17) to block the air inlet through hole (17), the bottom plate assembly (2) comprises a bottom plate (21) used for blocking a second end of the main oil passage of the rear section of the casing of the particle separator assembly (100), and the connecting piece (3) is used for connecting and locking the positioning plate (11) and the bottom plate (21); a contact surface of the positioning plate (11) and the first end of the main oil passage 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), a contact surface of the bottom plate (21) and the second end of the main oil passage 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 blocking assembly (5) comprises a blocking piece (51), a contact surface of the blocking piece (51) and the air inlet through hole (17) is provided with a fourth sealing ring (52).

2. A particle separator seal clamp as defined in claim 1, wherein, A first end of the connecting piece (3) is clamped with the bottom plate (21), the positioning plate assembly (1) further comprises a locking piece (12), a second end of the connecting piece (3) penetrates through the positioning plate (11), and the locking piece (12) is used for threadedly connecting with the second end of the connecting piece (3) and pressing and tightly abutting the positioning plate (11) on the first end of the main oil passage of the rear section of the casing of the particle separator assembly (100).

3. A particle separator seal clamp as defined in claim 2, wherein, A first end of the connecting piece (3) is provided with a protrusion (31), a clamping portion (32) in the form of a groove is formed between the protrusion (31) and the connecting piece (3), the bottom plate assembly (2) further comprises a bushing (22), a locking piece (26) and a clamping block (27), the bottom plate (21) is provided with a mounting through hole, the bushing (22) is used for being inserted into the mounting through hole and being connected and locked with the bottom plate (21) through the locking piece (26), the bushing (22) is provided with a limiting hole (221), a clamping hole (222) is formed in a side wall of the limiting hole (221), the first end of the connecting piece (3) is used for being inserted into the limiting hole (221) and making the clamping portion (32) correspondingly arranged with the clamping hole (222), and the clamping block (27) is used for being sequentially inserted into the clamping hole (222) and the clamping portion (32) to lock and limit the connecting piece (3) and the bushing (22).

4. A particle separator seal clamp according to claim 3, wherein, The bottom plate assembly (2) further comprises a cylindrical pin (23), the cylindrical pin (23) is used for being sequentially inserted into a first guide hole prearranged on the bushing (22) and a second guide hole prearranged on the bottom plate (21) to guide the bushing (22) and the bottom plate (21), and the cylindrical pin (23) is further used for limiting an outer side of the clamping block (27).

5. A particle separator seal test device for performing a seal test on a particle separator assembly (100), characterized by, The particle separator sealing test device comprises the particle separator sealing clamp according to any one of claims 1-4, and a spraying assembly (200) and a test platform assembly (300), the particle separator sealing clamp is used for plugging the main oil passage of the particle separator assembly (100), the test platform assembly (300) comprises a transparent water tank (301), an air pipe (304), a rotating shaft (305) and a driving mechanism, the transparent water tank (301) is used for containing deionized water, the rotating shaft (305) is provided with two, the two rotating shafts (305) are arranged on opposite sides of the transparent water tank (301), and the rotating shafts (305) on the two sides are used for being connected with opposite ends of the particle separator assembly (100); the driving mechanism is connected with the rotating shaft (305) and is used for driving the particle separator assembly (100) to rotate through the rotating shaft (305); a first end of the air pipe (304) is used for being communicated with a preset air inlet of the particle separator assembly (100) or a pipe joint (4), and a second end of the air pipe (304) is rotatably connected with a preset air inlet pipe of the transparent water tank (301), the air inlet pipe is used for being connected with an air source, and the spraying assembly (200) is arranged above the transparent water tank (301) and is used for spraying deionized water to the outer surface of the particle separator assembly (100).

6. A particle separator seal test device according to claim 5, wherein, The spraying assembly (200) comprises a spraying head (201), a lifting tool (202) and a mounting rack (203), the mounting rack (203) is fixedly arranged, the mounting rack (203) is used for erecting the spraying head (201) above the transparent water tank (301), the top of the spraying head (201) is connected with the lifting tool (202) through a pull rope, the lifting tool (202) and the spraying head (201) are arranged on opposite sides of the mounting rack (203), and the lifting tool (202) is used for driving the spraying head (201) to ascend and descend through the pull rope.

7. A particle separator seal test device as defined in claim 5, wherein, The particle separator sealing test device further comprises a circulating assembly (400), the circulating assembly (400) comprises a water pump, a filter screen and a reverse osmosis membrane, the water pump, the filter screen and the reverse osmosis membrane are sequentially arranged and are connected with the transparent water tank (301) through a water pipe to form a loop, and the filter screen and the reverse osmosis membrane are used for removing suspended impurity particles and active ions in the deionized water.

8. A particle separator seal test method, characterized by, The particle separator sealing test device according to any one of claims 5-7 comprises the following steps: S100, the particle separator sealing clamp is used for plugging the main oil passage of the particle separator assembly (100), and then the particle separator assembly (100) is installed in the transparent water tank (301) through the rotating shaft (305); S200, the rotating shaft (305) and the particle separator assembly (100) are driven to rotate through the driving mechanism, and deionized water is sprayed to the outer surface of the particle separator assembly (100) through the spraying assembly to remove the adhered gas on the outer surface of the particle separator assembly (100). S300, the first stage is sealed to the particle separator assembly (100) of the oil circuit test rear section, the first end of the air pipe (304) is communicated with 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 sealed by the sealing assembly (5), the liquid level of the deionized water in the transparent water tank is controlled to completely immerse the particle separator assembly (100), and the particle separator assembly (100) is rotated by the driving mechanism, and the bubbles inside and outside the particle separator assembly (100) are completely removed; S400, open the external air source to ventilate, and connect the compressed gas with a pressure P of 0.2 MPa to the particle separator assembly (100) through the air pipe (304); S500, under the condition of continuous ventilation, static 5-10 min, observe whether there are bubbles generated by defects or installation defects on the surface of the particle separator assembly (100), if there is no bubble generation phenomenon, the first stage sealing test is qualified, and the particle separator assembly (100) is taken out; S600, the second stage is to assemble the vortex casing assembly to the particle separator assembly (100) to perform complete sealing test on the front and rear sections of the casing, at this time the air inlet through hole (17) of the positioning plate (11) is replaced by the pipe joint (4) instead of the sealing assembly (5), the first end of the air pipe (304) is communicated with the pipe joint (4), the liquid level of the deionized water in the transparent water tank is controlled to completely immerse the particle separator assembly (100) and the vortex casing, and the particle separator assembly (100) and the vortex casing are rotated by the driving mechanism, and the bubbles inside and outside the particle separator assembly (100) and the vortex casing are completely removed; S700, open the external air source to ventilate, and connect the compressed gas with a pressure P of 0.2 MPa to the particle separator assembly (100) through the air pipe (304); S800, under the condition of continuous ventilation, static 5-10 min, observe whether there are bubbles generated by defects or installation defects on the surface of the particle separator assembly (100) and the vortex casing, if there is no bubble generation phenomenon, the second stage sealing test is qualified.

9. The method of claim 8, wherein the method further comprises: The compressed gas in steps S300 and S700 is mixed with non-toxic colored organic powder, so that the compressed gas has color, which assists visual observation of the test results; after the test is completed, 0.6 MPa high pressure gas is introduced to remove residual colored compressed gas and organic powder in the cavity of the particle separator assembly (100).

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