Aero-engine test system

Abstract

The application discloses an aero-engine test system, which comprises a test workshop, an air inlet silencing tower arranged at the front end of the test workshop, a gas exhaust silencing tower and a paddle flow exhaust silencing room arranged at the rear end of the test workshop in sequence, wherein the air inlet end of the air inlet silencing tower is arranged downward along the vertical direction, the exhaust end of the gas exhaust silencing tower is arranged upward along the vertical direction, and the exhaust end of the paddle flow exhaust silencing room is arranged horizontally along the length direction of the test workshop, and the air inlet silencing tower, the gas exhaust silencing tower and the paddle flow exhaust silencing room are all provided with multistage silencing structures and flow regulating structures. The aero-engine test system provided by the application adopts the structure layout of vertical air inlet and horizontal exhaust, meets the air inlet requirement and exhaust requirement of the aero-engine, has more reasonable and compact overall layout, occupies less space, can realize multistage silencing and flow regulation, has better exhaust effect, avoids the outward diffusion of test noise, and guarantees test safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aero-engine test running, in particular to an aero-engine test running system. BACKGROUND

[0002] Aero-engine whole machine test running is an important test step in the development process of the engine, and the whole machine test is the only means to finally judge whether the engine indicators meet the design requirements. In order to simulate the performance indicators of the aero-engine in the installed state, the corresponding air intake system and exhaust system need to be set in the test running room. Due to the large air flow and high flow rate of the high-power turboprop engine during the test, high noise is easily generated during the test. If the flow field in the test running room is uneven, problems such as backflow of combustion gas are likely to occur. Therefore, it is necessary to reasonably design the structure of the test running room to adapt to the test and subsequent modification requirements of the high-power turboprop engine.

[0003] To this end, Chinese invention patent CN116104336A provides a turboprop engine test running room, which includes a test running room and an exhaust room arranged in sequence along the airflow direction of the engine. The front end of the test running room is provided with an air intake silencer arranged in the horizontal direction, and the end of the exhaust room is provided with an exhaust silencer arranged in the horizontal direction. Although this structure can better meet the air intake requirements and exhaust requirements of the aero-engine, the overall plant layout is relatively long and occupies a large space due to the air intake direction and the exhaust direction being arranged in a straight line, which requires a higher site. SUMMARY

[0004] The present application provides an aero-engine test running system to solve the technical problem of large space occupation and poor applicability of the existing engine test running room.

[0005] According to one aspect of the present application, an aero-engine test running system is provided, which includes a test running room, an air intake silencer tower arranged at the front end of the test running room, and a gas exhaust silencer tower and a propeller flow exhaust silencer room arranged in sequence at the rear end of the test running room. The air intake end of the air intake silencer tower is arranged downward in the vertical direction, the gas exhaust silencer tower is arranged between the test running room and the propeller flow exhaust silencer room and the exhaust end is arranged upward in the vertical direction, and the exhaust end of the propeller flow exhaust silencer room is arranged horizontally along the length direction of the test running room. The air intake silencer tower is used for air intake into the test running room, the gas exhaust silencer tower is used for exhaust of the gas in the test running room, and the propeller flow exhaust silencer room is used for exhaust of the propeller flow exhaust gas in the test running room. The air intake silencer tower, the gas exhaust silencer tower and the propeller flow exhaust silencer room are all provided with multi-stage silencing structure and flow regulating structure.

[0006] Preferably, the aero-engine test system further comprises an assembly workshop and an auxiliary workshop arranged on one side of the test workshop, the assembly workshop is used for assembling aero-engines, the auxiliary workshop is arranged in two layers in the height direction, the first layer auxiliary workshop comprises an oil storage room, an electrical equipment room and a fuel room arranged in sequence in a direction away from the assembly workshop, the second layer auxiliary workshop comprises a changing soundproof room, a control room and a data analysis room arranged in sequence in a direction away from the assembly workshop, and the control room is arranged directly above the electrical equipment room and is used for controlling electrical equipment in the electrical equipment room.

[0007] Preferably, the electrical equipment room comprises a process equipment room, an electrical room and a loading cabinet room arranged in sequence in a direction away from the assembly workshop, the process equipment room is used for arranging an oil supply station, an air system and a circulating cooling water system, the electrical room is used for arranging an electrical control cabinet and a power supply cabinet, and the loading cabinet room is used for arranging an electrical loading cabinet.

[0008] Preferably, a pipeline installation module is arranged on a wall surface between the electrical equipment room and the test workshop, the pipeline installation module comprises two fixed plates used for fitting opposite sides of the wall surface, a plurality of pipeline channels arranged between the two fixed plates, and sound insulation material filled in the periphery of the pipeline channels, and the pipeline channels are provided with connecting ports used for connecting with equipment pipelines on the fixed plates.

[0009] Preferably, a threading module is arranged on a wall surface between the control room and the test workshop, the threading module comprises a blocking plate embedded in the wall surface, a plurality of threading holes arranged on the blocking plate, and a sealing plug used for detachably blocking the threading holes.

[0010] Preferably, a constant temperature and humidity system used for adjusting temperature and humidity is arranged in the control room and the data analysis room.

[0011] Preferably, the aero-engine test system further comprises an assembly workshop arranged on one side of the test workshop, and a suspended rail type soundproof door arranged between the test workshop and the assembly workshop.

[0012] The suspended rail type soundproof door comprises a wall body provided with a door opening, a suspended rail arranged above the door opening, a soundproof door leaf installed on the suspended rail, and a translation mechanism connected with the soundproof door leaf, the translation mechanism is used for driving the soundproof door leaf to slide open and close along the suspended rail.

[0013] The wall body is provided with a sealing flange on the side facing the soundproof door leaf, the sealing flange is arranged above the door opening, the top surface of the sealing flange is provided with a first sealing mechanism, the soundproof door leaf comprises a door leaf body and a sealing strip, the first end of the sealing strip is fixedly connected with the door leaf body, the second end of the sealing strip is inserted into the first sealing mechanism in the vertical direction, the first sealing mechanism is used for clamping the sealing strip after the soundproof door leaf is closed so as to seal the gap between the soundproof door leaf and the wall body, and the first sealing mechanism is also used for releasing the sealing strip when the soundproof door leaf moves.

[0014] Preferably, the overhead rail type soundproof door further comprises a second sealing mechanism arranged on the bottom of the soundproof door leaf, the second sealing mechanism comprises a second soundproof air cushion slidably connected with the soundproof door leaf in the vertical direction, and a lifting assembly connected with the second soundproof air cushion and used for driving the second soundproof air cushion to move up and down.

[0015] The lifting assembly comprises a motor arranged on the wall body, a first crank connected with the output shaft of the motor, a second crank rotatably arranged on the soundproof door leaf in the horizontal direction, a screw rod rotatably mounted in the soundproof door leaf in the vertical direction, a universal joint arranged between the second crank and the screw rod and used for transmitting the rotary power of the second crank to the screw rod, and a lifting transmission member connected with the second soundproof air cushion, the lifting transmission member is provided with a threaded hole threadedly connected with the screw rod, and the first crank is used for abutting against the second crank and transmitting the rotary power of the motor to the second crank after the soundproof door leaf is closed.

[0016] Preferably, the aero-engine test running system further comprises an assembly workshop and a hoisting device, the assembly workshop is arranged on one side of the test workshop;

[0017] The hoisting device comprises a crane, two parallel assembly rails installed on the roof of the assembly workshop, a transfer rail crossing between the two assembly rails, and a pre-assembly rail and a transportation rail arranged on the side of one of the assembly rails away from the other assembly rail, the pre-assembly rail is used for being arranged above a pre-assembly station, and the transportation rail extends to the roof of the test workshop;

[0018] The transfer rail is provided with a moving mechanism, the moving mechanism is used for driving the transfer rail to move along the length direction of the assembly rail to the state of being docked with the pre-assembly rail or the transportation rail, and the crane is used for hoisting the aero-engine on the pre-assembly station and driving the aero-engine to move along the pre-assembly rail, the transfer rail and the transportation rail.

[0019] Preferably, the transportation track is provided with a gap at the position of the soundproof door between the assembly workshop and the test workshop, and the hoisting device further comprises a turning track rotatably arranged at the gap, the turning track being used to turn to a state of aligning with the transportation track to fill the gap, and the turning track being used to turn to a state of being staggered with the transportation track to form a clearance space for the soundproof door to be closed at the gap.

[0020] The present application has the following beneficial effects:

[0021] The air inlet end of the air inlet silencing tower of the aero-engine test system provided by the present application is downward in the vertical direction, the exhaust end of the gas exhaust silencing tower is upward in the vertical direction, and the exhaust end of the paddle flow exhaust silencing chamber is horizontal, so that the structural layout of vertical air inlet and horizontal exhaust is realized, the air inlet requirement and the exhaust requirement of the aero-engine are met, the overall layout is more reasonable and compact, the space occupied is small, different sites can be adapted, the applicability is stronger, and since the gas exhaust silencing tower and the paddle flow exhaust silencing chamber are independently arranged, the gas can be better discharged, the problem of gas backflow during the test process is effectively avoided, and the test safety and test effect are improved. Secondly, since the multi-stage silencing structure and the flow regulating structure are arranged in the air inlet silencing tower, the gas exhaust silencing tower and the paddle flow exhaust silencing chamber, the hierarchical silencing and flow regulation can be realized, the exhaust effect is better, and the test noise can be prevented from diffusing outward, so that the test safety is ensured.

[0022] In addition to the objects, features, and advantages described above, the present application has other objects, features, and advantages. The present application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, illustrate embodiments of the application and aid in explaining the application. In the drawings:

[0024] Figure 1 The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, illustrate embodiments of the application and aid in explaining the application. In the drawings:

[0025] Figure 2 The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, illustrate embodiments of the application and aid in explaining the application. In the drawings: Figure 1 The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, illustrate embodiments of the application and aid in explaining the application. In the drawings:

[0026] Figure 3 The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, illustrate embodiments of the application and aid in explaining the application. In the drawings: Figure 1 The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, illustrate embodiments of the application and aid in explaining the application. In the drawings:

[0027] Figure 4 The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, illustrate embodiments of the application and aid in explaining the application. In the drawings: Figure 1 The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, illustrate embodiments of the application and aid in explaining the application. In the drawings: The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, illustrate embodiments of the application and aid in explaining the application. In the drawings:

[0028] Figure 5 for Figure 3 The diagram shows the structure of the piping installation module in the aero-engine test system.

[0029] Figure 6 for Figure 4 The diagram shows the structure of the wiring module in the aero-engine test system.

[0030] Figure 7 This is a schematic diagram of the structure of the suspended rail silencer in the aero-engine test system provided in an embodiment of the present invention;

[0031] Figure 8 for Figure 7 The diagram shows a cross-sectional view of the hanging track silencing door at the doorway location.

[0032] Figure 9 for Figure 8 A magnified view of area A in the suspended track silencing door shown;

[0033] Figure 10 for Figure 9 A schematic diagram of the first sealing mechanism in the suspended track silencing door shown;

[0034] Figure 11 for Figure 8 A magnified view of area B in the suspended track silencing door shown;

[0035] Figure 12 for Figure 7 The diagram shows the assembly structure of the door leaf and the hanging rail in a suspended track type soundproof door.

[0036] Figure 13 This is a schematic diagram of the hoisting device in the aero-engine test system provided in an embodiment of the present invention;

[0037] Figure 14 for Figure 13 The diagram shown illustrates the usage status of the hoisting device, showing the state where the reversing track is offset from the transport track.

[0038] Figure 15 for Figure 14 The diagram shown illustrates the changing states of the hoisting device, showing the alignment of the reversing track with the transport track.

[0039] Figure 16 for Figure 15 The diagram showing the changing states of the hoisting device illustrates the connection status of the transfer track with the transport track.

[0040] Figure 17 for Figure 13 A schematic diagram of the crane in the hoisting device shown.

[0041] Legend:

[0042] 1000, an aero-engine test system;

[0043] 1, a suspended rail type soundproof door; 11, a wall; 111, a door opening; 112, a sealing flange; 113, a soundproof cavity; 12, a suspended rail; 121, a limiting wheel; 13, a soundproof door leaf; 131, a door leaf body; 132, a sealing clamping strip; 14, a first sealing mechanism; 141, a first soundproof air cushion; 142, a return spring; 143, an electromagnet; 144, a mounting seat; 145, a limiting assembly; 1451, a limiting block; 1452, a transmission rod; 15, a second sealing mechanism; 151, a second soundproof air cushion; 152, a lifting assembly; 1521, a motor; 1522, a first crank; 1523, a second crank; 1524, a screw rod; 1525, a universal joint; 1526, a lifting transmission member; 1527, a mounting support; 16, a pressure detection assembly; 161, a safety air bag;

[0044] 2, a hoisting device; 21, a crane; 211, a hoisting assembly; 2111, a winding drum; 2112, a steel wire rope; 2113, a pulley; 2114, a lifting hook; 22, a parallel loading track; 23, a transfer track; 24, a preloading track; 25, a transportation track; 251, a notch; 26, a direction-changing track;

[0045] 3, an assembly workshop; 4, a test workshop; 5, an air inlet soundproof tower; 6, a gas exhaust soundproof tower; 7, a propeller flow exhaust soundproof room;

[0046] 8, an auxiliary workshop; 81, a lubricating oil storage room; 82, an electrical equipment room; 821, a process equipment room; 822, an electrical room; 823, a loading cabinet room; 824, an accessory storage room; 825, an air compressor room; 83, a fuel oil room; 84, a changing soundproof room; 841, a changing room; 842, a soundproof room; 85, a control room; 851, an instrument and meter room; 852, an operating room; 86, a data analysis room; 87, a hand washing room;

[0047] 91, a pipeline installation module; 911, a fixing plate; 912, a pipeline channel; 913, soundproofing material; 92, a threading module; 921, a plugging plate; 922, a threading hole. DETAILED DESCRIPTION

[0048] Embodiments of the present application are described in detail below with reference to the attached drawing figures, but the application can be embodied in various different forms and should not be construed as limited to the examples set forth in the attached drawings. Exemplary examples of the embodiments are shown in the drawings, in which the same or similar components are denoted by the same or similar reference numerals throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, but should not be construed as limiting the present application.

[0049] Those skilled in the art can understand that, unless specifically stated otherwise, the phrase "comprising" used in the specification of the present application means that the features, integers, steps, operations, components and / or elements described in the specification exist, but does not exclude the presence or addition of one or more other features, integers, steps, operations, components, elements and / or combinations thereof. It should be understood that when we say that a component is "connected" to another component, it can be directly connected to the other component or connected through an intermediate component. The phrase "and / or" used herein includes all or any one of the associated listed items and all combinations thereof. The terms "first" and "second" and the like in the specification and claims of the present application are used to distinguish different objects, rather than to describe a particular order.

[0050] Figures 1 to 17 The present application provides an aero-engine test system, which is used for ground testing of an aero-engine to detect the performance, reliability and durability of the aero-engine, can meet the working conditions of the aero-engine and has a better sound attenuation and noise reduction effect, and has a reasonable and compact overall layout, occupies a small space and has strong applicability.

[0051] Please refer to Figure 1 and Figure 2 , the aero-engine test system 1000 comprises a test workshop 4, an air inlet sound attenuation tower 5, a gas exhaust sound attenuation tower 6 and a propeller flow exhaust sound attenuation room 7, the test workshop 4 is used for testing the aero-engine, the air inlet sound attenuation tower 5 is arranged at the front end of the test workshop 4 along the airflow direction of the aero-engine, and the gas exhaust sound attenuation tower 6 and the propeller flow exhaust sound attenuation room 7 are sequentially arranged at the rear end of the test workshop 4 along the airflow direction of the aero-engine.

[0052] Further, the air inlet sound attenuation tower 5 extends upward along the vertical direction and its air inlet end is arranged downward along the vertical direction, the gas exhaust sound attenuation tower 6 is arranged between the test workshop 4 and the propeller flow exhaust sound attenuation room 7, the gas exhaust sound attenuation tower 6 extends upward along the vertical direction and its exhaust end is arranged upward along the vertical direction, the exhaust end of the propeller flow exhaust sound attenuation room 7 is arranged horizontally along the length direction of the test workshop 4, the air inlet sound attenuation tower 5 is used for introducing air into the test workshop 4, the gas exhaust sound attenuation tower 6 is used for exhausting the gas generated by the aero-engine in the test workshop 4, and the propeller flow exhaust sound attenuation room 7 is used for exhausting the propeller flow exhaust generated by the aero-engine in the test workshop 4, and the air inlet sound attenuation tower 5, the gas exhaust sound attenuation tower 6 and the propeller flow exhaust sound attenuation room 7 are all provided with multi-stage sound attenuation structures and flow regulation structures.

[0053] In the aero-engine test system 1000, the air inlet end of the air inlet silencing tower 5 is vertically downward, the exhaust end of the gas exhaust silencing tower 6 is vertically upward, and the exhaust end of the paddle flow exhaust silencing room 7 is horizontally exhaust, realizing the structural layout of vertical air inlet and horizontal exhaust, meeting the air inlet and exhaust requirements of the aero-engine, and the overall layout is more reasonable and compact, occupying less space, which can adapt to different sites, has stronger applicability, and can better exhaust gas due to the independent arrangement of the gas exhaust silencing tower 6 and the paddle flow exhaust silencing room 7, effectively avoiding the problem of gas backflow during the test process, and improving the test safety and test effect. Secondly, since the air inlet silencing tower 5, the gas exhaust silencing tower 6 and the paddle flow exhaust silencing room 7 are all provided with multi-stage silencing structure and flow regulating structure, the hierarchical silencing and flow regulating can be realized, the exhaust effect is better, and the test noise can be prevented from diffusing outward, thereby ensuring the test safety.

[0054] As shown in Figure 1 The aero-engine test system 1000 further includes an assembly workshop 3 and an auxiliary workshop 8 arranged on one side of the test workshop 4, the assembly workshop 3 is used for assembling aero-engines, the assembly workshop 3 is arranged at the air inlet end of the test workshop 4, the auxiliary workshop 8 is arranged at the exhaust end of the test workshop 4, the auxiliary workshop 8 is provided with two layers along the height direction, the first layer auxiliary workshop includes a lubricating oil storage room 81, an electrical equipment room 82 and a fuel room 83 arranged in sequence in the direction away from the assembly workshop 3, the second layer auxiliary workshop includes a changing soundproof room 84, a control room 85 and a data analysis room 86 arranged in sequence in the direction away from the assembly workshop 3, the control room 85 is arranged directly above the electrical equipment room 82 and is used for controlling the electrical equipment in the electrical equipment room 82.

[0055] Specifically, the oil storage room 81 is used for storing oil, and the fuel room 83 is used for storing fuel, the oil storage room 81 is arranged close to the engine mounting position of the test vehicle room 4, which is conducive to subsequent oil filling and preparation of each test equipment and connection of pipelines; the fuel room 83 is arranged away from the engine mounting position of the test vehicle room 4, which can improve safety and avoid direct contact of fuel with high temperature. Secondly, since the auxiliary room 8 is provided with two layers in the height direction, the changing soundproof room 84, the control room 85 and the data analysis room 86 which do not need to be provided with large equipment are sequentially arranged on the second layer, which not only can efficiently utilize the longitudinal space and make the overall layout more reasonable and compact, but also can facilitate the pipeline connection and installation between the control room 85 and the electrical equipment room 82, facilitate the control of the electrical equipment in the electrical equipment room 82 by the control room 85, and utilize the changing soundproof room 84 to soundproof and reduce noise of the control room 85 and the data analysis room 86, facilitate changing in and out of the control room 85 and the data analysis room 86, and effectively reduce the noise influence of the test process of the test vehicle room 4 on the control room 85 and the data analysis room 86.

[0056] Preferably, the electrical equipment room 82 comprises a process equipment room 821, an electrical room 822 and a loading cabinet room 823 which are sequentially arranged away from the assembly room 3, the process equipment room 821 is used for arranging oil stations, air systems and circulating cooling water systems, and the oil stations specifically comprise lifting platform oil stations, hydraulic loading oil stations, oil seal oil stations and the like, since the process equipment room 821 is relatively close to the test vehicle room 4, the oil stations, the air systems and the circulating cooling water systems are convenient for docking with the test vehicle room 4. Secondly, the electrical room 822 is used for arranging electrical control cabinets and power supply cabinets, and the loading cabinet room 823 is used for arranging electrical loading cabinets, the loading cabinets are independently arranged to reduce the influence of heat dissipation operation of the loading cabinets on other electrical equipment, and the electrical room 822 and the loading cabinet room 823 are adjacently arranged to facilitate unified management.

[0057] Further, the electrical equipment room 82 further comprises an accessory storage room 824 and an air compressor room 825 which are sequentially arranged at the rear end of the loading cabinet room 823 away from the assembly room 3, the accessory storage room 824 is used for storing accessories, and the air compressor room 825 is used for arranging air compressors, different equipment is separated by multiple rooms to avoid mutual influence.

[0058] Further, the changing soundproof room 84 comprises a changing room 841 and a soundproof room 842 which are sequentially arranged away from the assembly room 3, and the control room 85 realizes double soundproofing through the changing room 841 and the soundproof room 842.

[0059] Further, the control room 85 comprises an instrument room 851 and a manipulation room 852 arranged in sequence in a direction away from the assembly workshop 3, the instrument room 851 is used for arranging instruments, and the manipulation room 852 is used for manipulating the instruments, the instrument room 851 and the manipulation room 852 are separated, which can avoid the manipulation room 852 being too messy, and further soundproof the manipulation room 852 through the instrument room 851.

[0060] Further, the data analysis room 86 is provided with a washroom 87 away from one side of the control room 85, so as to facilitate the test personnel in the control room 85 and the data analysis room 86.

[0061] Please refer to Figure 3 and Figure 5 , the wall surface between the electrical equipment room 82 and the test workshop 4 is provided with a pipeline installation module 91, the pipeline installation module 91 comprises two fixed plates 911 used for fitting opposite sides of the wall surface, a plurality of pipeline channels 912 arranged between the two fixed plates 911, and soundproofing material 913 filled in the outer periphery of the pipeline channels 912, and the pipeline channels 912 are provided with connecting ports used for connecting equipment pipelines on the fixed plates 911. At least part of the pipeline channels 912 have different diameters to meet different pipeline installations, and the equipment pipelines are connected through the pipeline channels 912, which can facilitate the transportation of substances such as lubricating oil, fuel oil, hydraulic oil and cooling liquid, and can also achieve good soundproofing effect, so as to avoid the noise in the test workshop 4 from being transmitted outward along the pipeline installation position.

[0062] Please refer to Figure 4 and Figure 6 , the wall surface between the control room 85 and the test workshop 4 is provided with a threading module 92, the threading module 92 comprises a blocking plate 921 embedded in the wall surface, a plurality of threading holes 922 arranged on the blocking plate 921, and a sealing plug detachably blocking the threading holes 922. At least part of the threading holes 922 have different diameters, and the wiring personnel can take out the sealing plug at the corresponding position according to the needs, so that the cable in the test workshop 4 can be threaded to the control room 85 through the corresponding threading hole 922. This structure can ensure the sealing of the test workshop 4, reduce the physical vibration of the cable in the transmission process, ensure the constant temperature and humidity environment of the control room 85, and thus increase the accuracy and precision of data transmission.

[0063] Preferably, a constant temperature and humidity system (not shown in the figure, the same below) for adjusting temperature and humidity is arranged in the control room 85 and the data analysis room 86, and the temperature and humidity of the control room 85 and the data analysis room 86 are adjusted by the constant temperature and humidity system, so as to ensure that the related instruments and meters are kept in a suitable working environment and are not affected by the high temperature of the test workshop 4.

[0064] Please refer to Figures 7 to 12 The aero-engine test system 1000 further comprises a suspended rail type soundproof door 1 arranged between the test workshop 4 and the assembly workshop 3. The suspended rail type soundproof door 1 has a large opening and closing area and good soundproof effect through structure optimization, meets the requirements of large equipment access and test soundproofing, can be applied to the aero-engine test system, and realizes sound insulation and noise reduction between the assembly workshop 3 and the test workshop 4.

[0065] Please refer to Figure 7 and Figure 8 The suspended rail type soundproof door 1 comprises a wall body 11, a suspended rail 12, a soundproof door leaf 13 and a translation mechanism (not shown in the figure, the same below). The wall body 11 is provided with a door hole 111 matched with the soundproof door leaf 13. The suspended rail 12 is installed on the wall body 11 and extends horizontally to one side of the door hole 111 above the door hole 111. The soundproof door leaf 13 is slidably installed on the suspended rail 12. The translation mechanism is connected with the soundproof door leaf 13 and is used to drive the soundproof door leaf 13 to slide along the suspended rail 12. Further, the translation mechanism can specifically comprise a translation motor arranged on the wall body 11 and a driving wheel connected with an output shaft of the translation motor. The driving wheel abuts against the soundproof door leaf 13, so as to drive the soundproof door leaf 13 to translate through the rolling action of the driving wheel driven by the translation motor. In other embodiments, the driving wheel can be provided as a gear, and a rack engaged with the gear is arranged on the soundproof door leaf 13. The rack is driven to translate through the rotation of the gear driven by the translation motor, so as to realize higher precision of the translation driving action.

[0066] As Figure 9As shown, one side of the wall body 11 facing the soundproof door leaf 13 is provided with a sealing flange 112, which is arranged above the door opening 111 and extends towards the soundproof door leaf 13, and the top surface of the sealing flange 112 is provided with a first sealing mechanism 14. The soundproof door leaf 13 comprises a door leaf body 131 and a sealing batten 132, the first end of the sealing batten 132 is fixedly connected with the door leaf body 131 in the horizontal direction, and the second end of the sealing batten 132 is inserted into the first sealing mechanism 14 in the vertical direction. The middle segment of the sealing batten 132 is provided with an arc surface structure or a right angle structure so that the first end and the second end of the sealing batten 132 are arranged in different directions. The first sealing mechanism 14 is used to clamp the sealing batten 132 after the soundproof door leaf 13 is closed, so as to seal the gap between the soundproof door leaf 13 and the wall body 11. The first sealing mechanism 14 is also used to release the sealing batten 132 when the soundproof door leaf 13 moves, so as to avoid affecting the opening and closing action of the soundproof door leaf 13.

[0067] Specifically, the overhead rail type soundproof door 1 adopts a sliding door structure and is driven to open and close by the translation mechanism, avoiding the situation that the soundproof door is too large in size and too heavy in weight to be manually opened and closed, so as to meet the sealing requirements of large size door openings and adapt to the entry and exit of large volume equipment. In addition, the overhead rail design can avoid the problem that the uneven ground surface and the existence of protrusions are not conducive to the entry and exit of large equipment compared with the ground rail structure. More importantly, the first sealing mechanism 14 provided on the wall body 11 can clamp the sealing batten 132 on the soundproof door leaf 13 after the soundproof door leaf 13 is closed, so as to seal the gap between the soundproof door leaf 13 and the wall body 11. This effectively solves the problem of poor sealing effect of conventional sliding doors, increases the area of the door opening 11 while ensuring the sound insulation and noise reduction effect, and can meet the transfer requirements and noise reduction requirements of large aero-engine tests at the same time.

[0068] Please refer to Figure 10 The first sealing mechanism 14 comprises two first soundproof air cushions 141, a return spring 142 elastically pressed between the two first soundproof air cushions 141, and an electromagnet 143 arranged on the first soundproof air cushion 141. Specifically, the two first soundproof air cushions 141 are arranged on the opposite sides of the second end of the sealing batten 132, i.e. the second end of the sealing batten 132 is inserted into the two first soundproof air cushions 141 in the vertical direction. The return spring 142 is used to elastically open the two first soundproof air cushions 141 to a preset interval state to release the sealing batten 132, and the electromagnet 143 is used to attract the two first soundproof air cushions 141 in the energized state to drive the two first soundproof air cushions 141 to clamp the sealing batten 132.

[0069] The working principle of the first sealing mechanism 14 is that when the electromagnet 142 is in a power-off state, it has no magnetic force, at which time the two first sound-absorbing air cushions 141 can be popped open to a preset spacing state by the elastic force of the reset spring 142, so that the first sound-absorbing air cushions 141 are separated from the sealing clamping strip 132, and the sound-absorbing door leaf 13 can be smoothly opened and closed; when the electromagnet 142 is in a power-on state, the magnetic force generated by the electromagnet 142 can overcome the elastic force of the reset spring 142 and attract the two first sound-absorbing air cushions 141, so that the sealing clamping strip 132 is clamped by the two first sound-absorbing air cushions 141, realizing efficient sealing of the gap between the sound-absorbing door leaf 13 and the wall body 11. The sealing structure is simple and efficient, and the sealing is carried out through the air cushion structure, which can ensure that the first sound-absorbing air cushions 141 are tightly attached to the sealing clamping strip 132, and the sound-absorbing air cavity in the first sound-absorbing air cushions 141 can also be used for sound absorption, effectively improving the sound-absorbing effect.

[0070] Preferably, the first sealing mechanism 14 further comprises a mounting seat 144 arranged between the two first sound-absorbing air cushions 141, and two limiting assemblies 145 arranged on both ends of the mounting seat 144, the limiting assembly 145 comprising a limiting block 1451 and a transmission rod 1452 connected with the limiting block 1451, one end of the transmission rod 1452 away from the limiting block 1451 penetrates through a limiting hole prearranged on the mounting seat 144 and is connected with the first sound-absorbing air cushion 141, and the transmission rods 1452 of the two limiting assemblies 145 are connected with the two first sound-absorbing air cushions 141 one by one, the reset spring 142 abuts against one side of the limiting block 1451 away from the transmission rod 1452, and the limiting block 1451 is used to move to the state of abutting against the inner wall of the mounting seat 144 under the elastic force of the reset spring 142 and limit the maximum moving stroke of the first sound-absorbing air cushion 141.

[0071] The limiting assembly 145 limits the maximum moving stroke of the first sound-absorbing air cushion 141 through the cooperation of the limiting block 1451 and the mounting seat 144, avoids the loosening of the first sound-absorbing air cushion 141, and also guides the moving direction of the first sound-absorbing air cushion 141 through the cooperation of the limiting block 1451 and the limiting hole prearranged on the mounting seat 144, effectively improving the stability of the first sound-absorbing air cushion 141 and avoiding the deflection of the first sound-absorbing air cushion 141 affecting the clamping sealing effect.

[0072] Preferably, the first sound insulation air cushion 141 is provided with the electromagnet 143 on both upper and lower sides of the return spring 142, so that the electromagnet 143 on both upper and lower sides can simultaneously attract the first sound insulation air cushion 141, ensuring that the first sound insulation air cushion 141 is uniformly stressed and can realize stable and smooth movement. In the embodiment, the electromagnet 143 is arranged at a corresponding position on each of the two first sound insulation air cushions 141, so as to improve the magnetic attraction effect and ensure the sealing strength; in other embodiments, the electromagnet 143 can be arranged only on one of the first sound insulation air cushions 141, and a metal part for being attracted by the electromagnet 143 can be arranged on the other first sound insulation air cushion 141, and the electromagnet 143 can also control the attraction of the two first sound insulation air cushions 141.

[0073] As shown in Figure 11 The overhead rail type sound insulation door 1 further comprises a second sealing mechanism 15 arranged on the bottom of the sound insulation door leaf 13. The second sealing mechanism 15 comprises a second sound insulation air cushion 151 and a lifting assembly 152. The second sound insulation air cushion 151 is in sliding connection with the bottom of the sound insulation door leaf 13 in the vertical direction. The lifting assembly 152 is connected with the second sound insulation air cushion 151 and is used to drive the second sound insulation air cushion 151 to move up and down, so as to control the second sound insulation air cushion 151 to move up and down to abut against the ground or to be separated from the ground.

[0074] Specifically, after the sound insulation door leaf 13 is closed, the second sound insulation air cushion 151 can be driven by the lifting assembly 152 to move downward to abut against the ground, so as to seal the gap at the bottom of the sound insulation door leaf 13. The sealing is realized by the air cushion structure, which can ensure that the second sound insulation air cushion 151 closely abuts against the ground and can also utilize the air cavity in the second sound insulation air cushion 151 to realize sound insulation, effectively improving the sound insulation effect at the bottom position, so as to further improve the sound insulation and noise reduction effect of the overhead rail type sound insulation door 1.

[0075] Preferably, the lifting assembly 152 comprises a motor 1521 arranged on the wall 11, a first crank 1522 connected with the output shaft of the motor 1521, a second crank 1523 rotatably arranged on the sound insulation door leaf 13 in the horizontal direction, a screw rod 1524 rotatably mounted in the sound insulation door leaf 13 in the vertical direction, a universal joint 1525 arranged between the second crank 1523 and the screw rod 1524 and used to transmit the rotary power of the second crank 1523 to the screw rod 1524, and a lifting transmission member 1526 connected with the second sound insulation air cushion 151. The lifting transmission member 1526 is provided with a threaded hole in threaded connection with the screw rod 1524. The first crank 1522 is used to abut against the second crank 1523 after the sound insulation door leaf 13 is closed and to transmit the rotary power of the motor 1521 to the second crank 1523.

[0076] Specifically, the first crank 1522 and the second crank 1523 are provided with overlapping portions at a preset included angle, when the soundproof door leaf 13 is in an open state, the second crank 1523 moves with the soundproof door leaf 13 to a state of being separated from the first crank 1522; when the soundproof door leaf 13 is in a closed state, the second crank 1523 moves with the soundproof door leaf 13 to the working position of the first crank 1522, at this time, the first crank 1522 is driven to rotate by the motor 1521, so that the overlapping portion on the first crank 1522 is rotated to the state of overlapping the second crank 1523 and drives the second crank 1523 to rotate, thereby realizing reversing transmission through the cooperation of the second crank 1523 and the universal joint 1525 and driving the screw rod 1524 to rotate, and then driving the lifting transmission member 1526 to move up and down through the threaded cooperation, and driving the second soundproof air cushion 151 to move up and down by the lifting transmission member 1526. Since the motor 1521 is arranged away from the soundproof door leaf 13, the load of the soundproof door leaf 13 can be reduced, the opening mounting structure on the soundproof door leaf 13 can be reduced, and the smoothness of movement and the soundproof effect of the soundproof door leaf 13 can be ensured.

[0077] Further, the second soundproof air cushion 151 is provided with two, two second soundproof air cushions 151 are arranged on opposite sides of the soundproof door leaf 13, the two ends of the lifting transmission member 1526 respectively penetrate the opposite sides of the soundproof door leaf 13 and are connected with two second soundproof air cushions 151 one by one, and the second soundproof air cushion 151 extends upward to cover the penetrating hole position of the lifting transmission member 1526 on the soundproof door leaf 13, and the two second soundproof air cushions 151 are driven to move up and down synchronously by the lifting transmission member 1526, so that the two second soundproof air cushions 151 can jointly clamp the soundproof door leaf 13 to realize a double-layer sealing effect, and the second soundproof air cushion 151 can also cover the opening on the soundproof door leaf 13 to ensure the soundproof effect.

[0078] Further, the lifting assembly 152 further comprises a mounting bracket 1527 arranged in the inner cavity of the soundproof door leaf 13, the mounting bracket 1527 is arranged above the screw rod 1524, and the screw rod 1524 is rotatably mounted on the mounting bracket 1527. The mounting bracket 1527 is used for mounting and limiting the screw rod 1524, thereby improving the stability of the screw rod 1524.

[0079] Please combine Figure 7 and Figure 12The wall body 11 is provided with two walls 11 which are spaced apart and form a sound insulation cavity 113, the door opening 111 and the overhead rail 12 are arranged on the two walls 11, and the sound insulation door leaf 13 is provided with two sound insulation door leaves 13 which are arranged on the overhead rails 12 of the two walls 11 in a one-to-one correspondence, and the two sound insulation door leaves 13 are used to close the door openings 111 on the two walls 11 and seal the sound insulation cavity at the same time. The overhead rail type sound insulation door 1 forms a cavity structure through the two walls 11 which are spaced apart, and after the two sound insulation door leaves 13 are closed at the same time, the sound insulation cavity 113 can be in a completely closed state, effectively improving the sound insulation effect, and the 160dB noise generated in the test workshop of the aero-engine test system can be reduced to 70dB.

[0080] Preferably, the door leaf body 131 includes, in order from the outside to the inside, a first sound insulation plate, a damping layer, a steel frame, sound insulation cotton, a composite sound insulation module and a second sound insulation plate, and through the arrangement of the multiple sound insulation structures in sequence, the noise can be greatly reduced, and through the support of the steel frame on the multiple sound insulation structures, the structural strength of the door leaf body 131 can be ensured, and deformation affecting the sealing effect can be avoided.

[0081] Preferably, the sound insulation door leaf 13 is provided with an infrared detection assembly (not shown in the figure, the same below) and / or a pressure detection assembly 16, the infrared detection assembly includes an infrared sensor, the infrared sensor is used to detect whether there is an obstacle in the closing direction of the sound insulation door leaf 13 through an infrared signal, and the pressure detection assembly 16 includes a safety air bag 161 and a pressure sensor arranged in the safety air bag 161, the safety air bag 161 is arranged on the side wall of the sound insulation door leaf 13, and the pressure sensor is used to detect the air pressure change of the safety air bag 161 to determine whether the safety air bag 161 touches an obstacle.

[0082] In the embodiment, the sound insulation door leaf 13 is provided with the infrared detection assembly and the pressure detection assembly 16 at the same time, whether there is an obstacle in the closing direction of the sound insulation door leaf 13 is determined through double anti-collision detection, and the safety is effectively improved.

[0083] Further, the overhead rail 12 is provided with a limiting wheel 121, the limiting wheel 121 is used to abut against the sound insulation door leaf 13 and limit the opening and closing movement stroke of the sound insulation door leaf 13, and the high-precision opening and closing of the sound insulation door leaf 13 is ensured.

[0084] Please refer to Figures 13 to 17The aero-engine test running system 1000 further comprises a hoisting device 2 for realizing rapid transfer of the aero-engine between the pre-assembly stations of the assembly workshop 3 and the test stations of the test workshop 4, and realizing parallel operation of multiple pre-assembly stations, effectively improving the transfer efficiency and test efficiency of the aero-engine, reducing manual operation, and improving safety.

[0085] Please refer to Figure 13 and Figure 14 The hoisting device 2 comprises a crane 21, two parallel pre-assembly tracks 22 for being installed on the roof of the assembly workshop 3, a transfer track 23 arranged between the two pre-assembly tracks 22, and a pre-assembly track 24 and a transport track 25 arranged on the side of the pre-assembly track 23 away from the other pre-assembly track 23, the pre-assembly track 24 is arranged above the pre-assembly station, and the transport track 25 extends to the roof of the test workshop 4. The transfer track 23 is provided with a moving mechanism (not shown in the figure, the same below), which is used to drive the transfer track 23 to move along the length direction of the pre-assembly track 22 to the state of being connected to the pre-assembly track 24 or the transport track 25, and the crane 21 is used to hoist the aero-engine on the pre-assembly station and drive the aero-engine to move along the pre-assembly track 24, the transfer track 23 and the transport track 25.

[0086] Specifically, the hoisting device 2 installs the transfer track 23 across the two parallel pre-assembly tracks 22, and is provided with the pre-assembly track 24 and the transport track 25 on the outer side (the side away from the transfer track 23) of the pre-assembly track 22, which realizes stable installation of the transfer track 23 and enables the transfer track 23 to move along the pre-assembly track 22 to the state of being connected to any one of the pre-assembly tracks 24 or the transport track 25 with high precision, so that the crane 21 can be moved into different pre-assembly tracks 24 to hoist the aero-engine on the corresponding pre-assembly station, and can also be moved from different pre-assembly tracks 24 to the transfer track 23 and then moved along the transfer track 23 to the transport track 25, which facilitates the crane 21 to directly hoist and transport the aero-engine on different pre-assembly stations of the assembly workshop 3 to the test stations in the test workshop 4, reduces the use of transfer vehicles, and thus reduces the clamping and positioning process between the transfer vehicles and the pre-assembly stations and between the transfer vehicles and the crane, and only one hoisting operation is needed to directly transfer the aero-engine from the pre-assembly station to the test station, realizing rapid replacement and transportation. Secondly, multiple pre-assembly tracks 24 can be arranged on the outer side of the pre-assembly track 22 to realize parallel operation of multiple pre-assembly stations, which can simultaneously perform assembly and lifting preparation work of multiple aero-engines, effectively improve the transportation efficiency, and facilitate batch testing of multiple aero-engines.

[0087] Further, the moving mechanism comprises a first roller arranged on two ends of the adapter track 23, a first moving motor connected with the first roller and used for driving the first roller to roll, the first roller is embedded in a first roller groove of the combined track 22, and the first roller is driven by the first moving motor to roll along the first roller groove, so as to drive the adapter track 23 to move along the combined track 22.

[0088] Please refer to Figure 14 and Figure 15 , the transport track 25 is provided with a gap 251 at the position of the soundproof door 1 between the assembly workshop 3 and the test workshop 4, and the hoisting device 2 further comprises a turning track 26 rotatably arranged at the gap 251, the turning track 26 is used to rotate to the state of aligning with the transport track 25 to fill the gap 251 (shown in Figure 15 ), and the turning track 26 is also used to rotate to the state of being staggered with the transport track 25 to form a avoiding space for the soundproof door 1 to close at the gap 251 (shown in Figure 14 ).

[0089] Specifically, the turning track 26 is arranged to rotate along the horizontal plane, and the turning track 26 is provided with a turning motor (not shown in the figure, the same below) used for driving the turning track 26 to rotate, when the turning track 26 is rotated to the state of aligning with the transport track 25 by the turning motor, the gap 251 can be filled, and the crane 21 can move along the transport track 25 between the assembly workshop 3 and the test workshop 4; when the test is carried out in the test workshop 4, the turning track 26 can be rotated to the state of being staggered with the transport track 25 by the turning motor, and the avoiding space for the soundproof door 1 to close can be formed at the gap 251, so that the soundproof door 1 can be smoothly closed and seal the test workshop 4, which is beneficial to realize the soundproofing and noise reduction effect of the test workshop 4.

[0090] Preferably, the transport track 25 is arranged on the two combined tracks 22, and the transport tracks 25 on the two combined tracks 22 are used to extend to different test workshops 4. That is, the hoisting device 2 can flexibly transfer the aero-engine on multiple pre-assembly stations to different test workshops 4 respectively, realize the parallel operation of at least two test workshops 4, and further improve the test efficiency.

[0091] As Figure 16As shown, the two transport tracks 25 on the two parallel tracks 22 are arranged opposite to each other, and the two ends of the adapter track 23 are used to dock the two transport tracks 25 on the two parallel tracks 22 at the same time. Since the two transport tracks 25 on the two parallel tracks 22 are arranged opposite to each other, only one positioning position is needed to make the adapter track 23 dock the two transport tracks 25 at the same time, thereby reducing the docking positioning structure on the adapter track 23, simplifying the hoisting device 2, and making the overall structure more simple and efficient.

[0092] Preferably, a plurality of pre-assembly tracks 24 are arranged on the two parallel tracks 22 in the length direction and are arranged above the plurality of pre-assembly stations one by one. By arranging a plurality of pre-assembly tracks 24 on the two parallel tracks 22 respectively, more pre-assembly stations can be arranged, and the transfer requirements of more pre-assembly stations can be met. It should be understood that each pre-assembly station can be used for assembling an aero-engine alone, or different assembly processes of an aero-engine can be performed through a plurality of pre-assembly stations. The hoist 21 can be flexibly moved between the plurality of pre-assembly stations by the hoisting device 2 to meet different use requirements, and the applicability is strong.

[0093] As shown in the figure, Figure 14 The pre-assembly tracks 24 on the two parallel tracks 22 are arranged one by one, and the two ends of the adapter track 23 are used to dock the two pre-assembly tracks 24 on the two parallel tracks 22 at the same time. Similarly, since the two pre-assembly tracks 24 on the two parallel tracks 22 are arranged opposite to each other, only one positioning position is needed to make the adapter track 23 dock the two pre-assembly tracks 24 at the same time, thereby reducing the docking positioning structure on the adapter track 23, simplifying the hoisting device 2, and making the overall structure more simple and efficient.

[0094] Preferably, the end of the adapter track 23 is provided with a track locking mechanism (not shown in the figure, the same below), which is used to lock and fix the adapter track 23 relative to the pre-assembly track 24 or to lock and fix the adapter track 23 relative to the transport track 25. The positioning and fixing of the adapter track 23 are realized by the track locking mechanism, which ensures that the adapter track 23 stably docks the pre-assembly track 24 or the transport track 25, so that the hoist 21 can move smoothly between the adapter track 23 and the pre-assembly track 24 or between the adapter track 23 and the transport track 25.

[0095] Furthermore, the rail locking mechanism includes a telescopic component and a rail locking pin connected to the telescopic component. The telescopic component may specifically be a pneumatic rod or a hydraulic rod, or include a motor and a linear transmission component connected to the output shaft of the motor. The telescopic component is connected to the rail locking pin and is used to drive the rail locking pin to telescopically move, thereby causing the rail locking pin to extend and insert into a preset positioning hole on the pre-installed rail 24 or the transport rail 25, thereby locking and fixing the transfer rail 23.

[0096] like Figure 17 As shown, the crane 21 includes two lifting assemblies 211 arranged side by side. Each lifting assembly 211 includes a drum 2111, a wire rope 2112, a pulley 2113, and a hook 2114 connected in sequence. There are two wire ropes 2112, which are spaced apart along the axial direction of the pulley 2113 and are both wound around the outer circumference of the pulley 2113. The drum 2111 is connected to the wire rope 2112 and is used to drive the wire rope 2112 to wind up or unwind, thereby driving the pulley 2113 and the hook 2114 to move up and down.

[0097] Since the lifting assembly 211 includes two steel wire ropes 2112 spaced apart along the axial direction of the pulley 2113, and the steel wire ropes 2112 are wound around the outer circumference of the pulley 2113, so that the two ends of the steel wire ropes 2112 are respectively located on opposite sides of the pulley 2113, the two steel wire ropes 2112 together form four traction points. The steel wire ropes 2112 are arranged around the hook 2114, which effectively ensures the stability of the hook 2114 in three dimensions and can prevent the hook 2114 from tilting in any direction. Compared with conventional hook structures, it can effectively ensure the stable transportation of the lifted items and prevent swaying during the lifting process. Secondly, since the crane 21 includes two lifting components 211 arranged side by side, the aircraft engine is lifted on opposite sides by hooks 2114 on the two lifting components 211 respectively. Thus, the position of the aircraft engine can be flexibly adjusted by individually controlling the lifting height of any one hook 2114, ensuring that the aircraft engine is in a horizontal state during lifting, and further improving the lifting stability.

[0098] Preferably, the cross-sections of the pre-installed track 24, the transfer track 23, and the transport track 25 are all designed as "I"-shaped structures. The drum 2111 is provided with a double hook drive assembly, which is used to engage the opposite sides of the "I"-shaped structure and to move along the pre-installed track 24, the transfer track 23, and the transport track 25.

[0099] Specifically, the pre-assembly track 24, the adapter track 23 and the transportation track 25 are all made of I-beams, simple and efficient structure, the double-hook driving assembly comprises two oppositely arranged inverted "L"-shaped hooks, the two inverted "L"-shaped hooks are respectively connected with the two sides of the I-beam, so that the crane 21 can be multi-directionally positioned, and the stability is improved.

[0100] Further, the bottom of the inverted "L"-shaped hook is provided with a second roller and a second moving motor connected with the second roller, the second roller abuts against the upper surface of the flange of the I-beam, the second roller is driven to roll along the I-beam by the second moving motor, so as to drive the crane 21 to move along the pre-assembly track 24, the adapter track 23 and the transportation track 25.

[0101] The above only describes the preferred embodiments of the present application and is not used to limit the present application, for those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An aircraft engine test system, characterized by, The aero-engine test system comprises a test workshop, an air inlet silencer tower arranged at the front end of the test workshop, a gas exhaust silencer tower and a paddle flow exhaust silencer room arranged at the rear end of the test workshop in sequence, the air inlet end of the air inlet silencer tower is arranged downward in the vertical direction, the gas exhaust silencer tower is arranged between the test workshop and the paddle flow exhaust silencer room and the exhaust end is arranged upward in the vertical direction, the exhaust end of the paddle flow exhaust silencer room is arranged horizontally along the length direction of the test workshop, the air inlet silencer tower is used for air inlet into the test workshop, the gas exhaust silencer tower is used for exhaust of gas in the test workshop, and the paddle flow exhaust silencer room is used for exhaust of paddle flow exhaust gas in the test workshop, and the air inlet silencer tower, the gas exhaust silencer tower and the paddle flow exhaust silencer room are all provided with multi-stage silencing structure and flow regulating structure. The aero-engine test system further comprises an assembly workshop arranged on one side of the test workshop, and a suspended rail type silencer door arranged between the test workshop and the assembly workshop. The suspended rail type silencer door comprises a wall body provided with a door opening, a suspended rail arranged above the door opening, a silencer door leaf mounted on the suspended rail, and a translation mechanism connected with the silencer door leaf, the translation mechanism being used for driving the silencer door leaf to slide along the suspended rail to open and close. One side of the wall body towards the silencer door leaf is provided with a sealing flange, the sealing flange is arranged above the door opening, the top surface of the sealing flange is provided with a first sealing mechanism, the silencer door leaf comprises a door leaf body and a sealing strip, the first end of the sealing strip is fixedly connected with the door leaf body, the second end of the sealing strip is inserted into the first sealing mechanism in the vertical direction, the first sealing mechanism is used for clamping the sealing strip after the silencer door leaf is closed to seal the gap between the silencer door leaf and the wall body, and the first sealing mechanism is also used for releasing the sealing strip when the silencer door leaf moves; The first sealing mechanism comprises two first silencer air cushions, a return spring elastically pressed between the two first silencer air cushions, and an electromagnet arranged on the first silencer air cushion; The second end of the sealing strip is inserted into the space between the two first silencer air cushions in the vertical direction, the return spring is used for elastically opening the two first silencer air cushions to a preset interval state to release the sealing strip, and the electromagnet is used for attracting the two first silencer air cushions in the electrified state to drive the two first silencer air cushions to clamp the sealing strip; The suspended rail type silencer door further comprises a second sealing mechanism arranged on the bottom of the silencer door leaf, the second sealing mechanism comprises a second silencer air cushion slidably connected with the silencer door leaf in the vertical direction, and a lifting assembly connected with the second silencer air cushion and used for driving the second silencer air cushion to move up and down.

2. The aircraft engine test system of claim 1, wherein, The aero-engine test system further comprises an assembly workshop and an auxiliary workshop arranged on one side of the test workshop, the assembly workshop is used for assembling aero-engines, the auxiliary workshop is arranged in two layers in the height direction, the first layer auxiliary workshop comprises a lubricating oil storage room, an electrical equipment room and a fuel room arranged in sequence in a direction away from the assembly workshop, the second layer auxiliary workshop comprises a changing soundproof room, a control room and a data analysis room arranged in sequence in a direction away from the assembly workshop, and the control room is arranged directly above the electrical equipment room and is used for controlling electrical equipment in the electrical equipment room.

3. The aircraft engine test system of claim 2, wherein, The electrical equipment room comprises a process equipment room, an electrical room and a loading cabinet room arranged in sequence in a direction away from the assembly workshop, the process equipment room is used for arranging an oil supply station, an air system and a circulating cooling water system, the electrical room is used for arranging an electrical control cabinet and a power supply cabinet, and the loading cabinet room is used for arranging an electrical loading cabinet.

4. The aircraft engine test system of claim 2, wherein, A pipeline mounting module is arranged on a wall surface between the electrical equipment room and the test workshop, the pipeline mounting module comprises two fixed plates used for fitting opposite sides of the wall surface, a plurality of pipeline channels arranged between the two fixed plates, and sound insulation material filled in the periphery of the pipeline channels, and the pipeline channels are provided with connecting ports used for connecting with equipment pipelines on the fixed plates.

5. The aircraft engine test system of claim 2, wherein, A threading module is arranged on a wall surface between the control room and the test workshop, the threading module comprises a blocking plate embedded in the wall surface, a plurality of threading holes arranged on the blocking plate, and sealing plugs used for detachably blocking the threading holes.

6. The aircraft engine test system of claim 2, wherein, A constant temperature and humidity system used for adjusting temperature and humidity is arranged in the control room and the data analysis room.

7. The aircraft engine test system of claim 1, wherein, The lifting assembly comprises a motor arranged on the wall, a first crank connected with an output shaft of the motor, a second crank rotatably arranged on the soundproof door leaf in a horizontal direction, a screw rotatably mounted in the soundproof door leaf in a vertical direction, a universal joint arranged between the second crank and the screw and used for transmitting rotational power of the second crank to the screw, and a lifting transmission member connected with the second soundproof air cushion, the lifting transmission member is provided with a threaded hole in threaded connection with the screw, and the first crank is used for abutting against the second crank and transmitting rotational power of the motor to the second crank after the soundproof door leaf is closed.

8. The aircraft engine test system of claim 1, wherein, The aero-engine test system further comprises an assembly workshop and a hoisting device, the assembly workshop is arranged on one side of the test workshop; The hoisting device comprises a crane, two parallel assembly tracks arranged on a roof of the assembly workshop, a transfer track arranged between the two assembly tracks, and a pre-assembly track and a transportation track arranged on one side of the assembly track away from the other assembly track, the pre-assembly track is arranged above a pre-assembly station, and the transportation track extends to the roof of the test workshop. The transfer track is provided with a moving mechanism for driving the transfer track to move along the length direction of the parallel track to a state of abutting against the pre-assembly track or the transportation track, and the crane is used for hoisting the aero-engine on the pre-assembly station and driving the aero-engine to move along the pre-assembly track, the transfer track and the transportation track.

9. The aircraft engine test system of claim 8, wherein, The transportation track is provided with a gap at the position of a soundproof door between the assembly workshop and the test workshop, and the hoisting device further comprises a turning track rotatably arranged at the gap, the turning track being used for turning to a state of aligning with the transportation track to fill the gap, and the turning track being further used for turning to a state of being staggered with the transportation track to form an avoiding space for the soundproof door to close at the gap.

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