A micro turbojet engine oil distribution ring flow test device

Abstract

The application relates to a micro turbojet engine oil distribution ring flow testing device. The base of the testing device is provided with a first support plate and a second support plate, the second support plate is arranged above the first support plate; an oil storage tank is connected to the base and arranged below the first support plate; the top end of a circulating pipe is arranged above the second support plate, and the bottom end is communicated with the oil storage tank; a detection assembly comprises a support seat, a lifting piece and a plurality of detection pipes, the support seat is connected to the base and located below the second support plate, the lifting piece is connected to the support seat, the plurality of detection pipes are arranged at intervals around the circumferential side of the support seat, the plurality of detection pipes are connected to the lifting piece, and the lifting piece drives the plurality of detection pipes to switch between a first state and a second state. The application can efficiently and intuitively determine the consistency of the oil injection amount of each oil needle of the oil distribution ring, so as to meet the demand of the balance detection of the oil distribution ring.

Description

Technical Field

[0001] This application belongs to the field of engine auxiliary tooling technology, specifically relating to a micro turbojet engine oil separator flow rate testing device. Background Technology

[0002] In aero-engine turbojet engines, the fuel distributor ring and fuel injection needles are crucial for combustion uniformity. Ensuring consistent fuel flow at each injection needle outlet (with a difference of no more than 3%) ensures consistent fuel flow into each evaporator tube in the combustion chamber. This, in turn, guarantees the control system's precision, maintains a stable combustion chamber temperature field, prevents turbine damage, improves fuel efficiency, and ultimately guarantees engine power performance and thrust, significantly impacting engine reliability. Therefore, fuel injection uniformity testing of the fuel distributor ring is necessary during production to ensure product compliance.

[0003] In related technologies, the detection device for the oil distribution ring of a micro turbojet engine independently verifies the injection quantity of a single oil needle of the injection ring, but cannot synchronously collect and compare the flow rates at the outlet of each oil needle, making it difficult to meet the requirements for the balance detection of the oil distribution ring. Summary of the Invention

[0004] Based on the above-mentioned technical problems, this application provides a micro turbojet engine oil distributor ring flow test device, which aims to solve, to at least some extent, the technical problem that the oil injection quantity of a single oil needle of the oil injection ring cannot be independently verified, resulting in the inability to synchronously collect and compare the flow rates of each oil needle outlet, and thus making it difficult to meet the requirements for oil distributor ring balance detection.

[0005] This application is achieved through the following technical solution:

[0006] A micro turbojet engine oil distribution ring flow testing device includes: a base with a first support plate and a second support plate, the second support plate being positioned above the first support plate; an oil storage tank connected to the base and positioned below the first support plate; a circulation pipe with its top end positioned above the second support plate and its bottom end connected to the oil storage tank; and a detection assembly including a support base, a lifting component, and multiple detection tubes. The support base is connected to the base, the lifting component is connected to the support base, and the multiple detection tubes are spaced apart around the periphery of the support base and connected to the lifting component. The lifting component drives the multiple detection tubes to switch between a first state and a second state. The oil distribution ring passes through the second support plate and is positioned at the top of the support base. The oil inlet end of the oil distribution ring is connected to the top end of the circulation pipe. The oil needles of the oil distribution ring and the detection tubes are arranged in a one-to-one correspondence. When the multiple detection tubes are in the first state, the multiple detection tubes are connected to their corresponding oil needles; when the multiple detection tubes are in the second state, the multiple detection tubes are disconnected from their corresponding oil needles.

[0007] In some implementations, the lifting component includes: a plurality of first push rods connected to the support base and spaced apart around the periphery of the support base; the plurality of first push rods and a plurality of detection tubes are arranged in a one-to-one correspondence; and the lifting end of the first push rod is connected to the corresponding detection tube.

[0008] In some embodiments, the detection tube includes a tube body and a valve, the top end of the tube body is connected to a corresponding oil needle, the valve is disposed in the middle of the tube body to divide the tube body into an upper detection chamber and a lower receiving chamber, at least a portion of the sidewall of the detection chamber is transparent, and the transparent portion of the sidewall of the detection chamber is provided with graduations.

[0009] In some implementations, the detection component may rotate relative to the base.

[0010] In some embodiments, the testing apparatus further includes a drive motor connected to the oil storage tank, the output shaft of the drive motor being connected to the bottom of the support base.

[0011] In some implementations, the circumferential surface of the support base is provided with multiple first sliding grooves extending vertically; the detection assembly further includes a guide member, the guide member, the first sliding grooves and the detection tube are respectively arranged in a one-to-one correspondence, the guide member is connected to the corresponding detection tube, the guide member has a guide portion, and the guide portion adaptably moves up and down in the corresponding first sliding groove.

[0012] In some embodiments, the guide includes: a first connecting frame and a second connecting frame, both connected to the detection tube, the first connecting frame being located above the second connecting frame; a guide frame, the top of which is connected to the first connecting frame, the guide frame being slidably connected to the corresponding first slide groove, the guide frame being configured as the guide portion.

[0013] In some implementations, the detection tube can be deflected relative to the central axis of the support.

[0014] In some implementations, the first connecting frame and the guide frame are rotatably connected; the detection assembly further includes a second driving member, which is configured one-to-one with the detection tube. The second driving member is connected to the guide frame, and the telescopic end of the second driving member extends and retracts in the horizontal direction. The telescopic end of the second driving member is rotatably connected to the second connecting frame.

[0015] In some embodiments, the guide frame has a through second slide groove that extends vertically; the second driving member includes a second push rod, a fixed plate, a second slider, a sliding column, a positioning block, a reset member, and a second connecting block, wherein: one end of the second push rod is connected to the bottom of the first slide groove, and the other end of the second push rod is connected to the fixed plate; the fixed plate has a third slide groove that extends vertically; the second slider is slidably disposed in the third slide groove; one end of the sliding column is connected to the second slider, and the other end of the sliding column passes through the second slide groove; the positioning block is slidably sleeved on the sliding column and slidably disposed in the second slide groove; the second connecting block is connected to the other end of the sliding column; the second connecting block is sleeved on the second connecting frame through a second rotating shaft; and the second connecting block is configured as the telescopic end of the second driving member.

[0016] When testing the fuel injection quantity of the distributor ring using the micro turbojet engine distributor ring flow testing device provided in this application, the distributor ring is first inserted through the second support plate and positioned at the top of the support base, thus fixing the distributor ring to the base. Then, multiple detection tubes are controlled to be in the first state, with the fuel needles of the distributor ring and the detection tubes connected one-to-one. Subsequently, the fuel circuit system is started, and fuel is transported from the fuel tank to the distributor ring through the circulation pipe, and is injected by each fuel needle of the distributor ring and collected by the detection tubes. After the fuel supply stops, the multiple detection tubes are controlled to be in the second state, so that the multiple detection tubes are separated from the corresponding fuel needles of the distributor ring. Then, by observing the fuel volume stored in the multiple detection tubes, the outlet flow of each fuel needle is collected synchronously, and the fuel level height of each corresponding fuel needle is compared, so as to efficiently and intuitively determine the consistency of the fuel injection quantity of each fuel needle of the distributor ring, thus meeting the needs of distributor ring balance testing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of the micro turbojet engine oil separator ring flow test device 10 in one or more embodiments of this application is shown;

[0019] Figure 2 It shows Figure 1 A structural diagram showing the removal of the second support plate 120 and the second column 150;

[0020] Figure 3 A schematic diagram of the detection component 400 is shown;

[0021] Figure 4 It shows Figure 3 A schematic diagram of the structure of the support base 410;

[0022] Figure 5 A schematic diagram of the assembly of guide 440 and detection tube 430 is shown;

[0023] Figure 6 A cross-sectional schematic diagram of the oil storage tank 200 of the test device 10 is shown;

[0024] Figure 7 A schematic diagram is shown showing the detection tube 430 switching from a vertical state to an inclined state;

[0025] Figure 8 A schematic diagram of the guide frame 444 is shown.

[0026] Figure 9 A schematic diagram of the structure of the second drive unit 450 is shown.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10. Testing equipment;

[0029] 100. Base; 110. First support plate; 120. Second support plate; 121. Through hole; 130. Base plate; 140. First column; 150. Second column; 160. Support block;

[0030] 200. Oil storage tank; 210. Protective cover;

[0031] 300. Circulation pipe;

[0032] 400. Detection component; 410. Support base; 411. Support part; 412. First slide rail; 413. Guide rail; 420. Lifting component; 421. First push rod; 430. Detection tube; 431. Tube body; 432. Valve; 433. Detection chamber; 434. Receiving chamber; 440. Guide component; 441. Guide part; 442. First connecting frame; 443. Second connecting frame; 444. Guide frame; 4441. Guide 4442, First slider; 4443, Guide groove; 4444, Second slide groove; 445, Connecting plate; 450, Second driving component; 451, Second push rod; 452, Fixing plate; 4521, Third slide groove; 453, Second slider; 454, Sliding column; 455, Positioning block; 4551, Groove; 456, Reset component; 457, Second connecting block; 460, First connecting block; 470, Positioning rod;

[0033] 500. Drive motor. Detailed Implementation

[0034] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0035] Figure 1 A schematic diagram of the structure of the micro turbojet engine oil separator ring flow test device 10 according to one or more embodiments of this application is shown. Figure 2 It shows Figure 1 The structural diagram excluding the second support plate 120 and the second column 150 is combined with... Figure 1 as well as Figure 2 The testing device 10 provided in this application includes a base 100, an oil storage tank 200, a circulation pipe 300, and a detection component 400. The base 100 is provided with a first support plate 110 and a second support plate 120, with the second support plate 120 positioned above the first support plate 110. The oil storage tank 200 is connected to the base 100 and positioned below the first support plate 110. The top end of the circulation pipe 300 is positioned above the second support plate 120, and the bottom end is connected to the oil storage tank 200. The detection component 400 includes a support base 410, a lifting component 420, and multiple detection pipes 430. The support base 410 is connected to the base 100, and the lifting component 420 is connected to the support base. 410, Multiple detection tubes 430 are spaced apart around the periphery of the support base 410. The multiple detection tubes 430 are connected to the lifting component 420. The lifting component 420 drives the multiple detection tubes 430 to switch between a first state and a second state. Among them, the oil distribution ring passes through the second support plate 120 and is positioned at the top of the support base 410. The oil inlet end of the oil distribution ring is connected to the top of the circulation pipe 300. The oil needles of the oil distribution ring and the detection tubes 430 are set one-to-one. When the multiple detection tubes 430 are in the first state, the multiple detection tubes 430 are connected to the corresponding oil needles. When the multiple detection tubes 430 are in the second state, the multiple detection tubes 430 are disconnected from the corresponding oil needles.

[0036] When testing the fuel injection quantity of the fuel distributor ring using the micro turbojet engine fuel distributor ring flow test device 10 provided in this application, the fuel distributor ring is first inserted through the second support plate 120 and positioned at the top of the support base 410, thereby fixing the fuel distributor ring on the base 100. Then, multiple detection tubes 430 are controlled to be in the first state, with the fuel needles of the fuel distributor ring and the detection tubes 430 connected one-to-one. Then, the fuel circuit system is started, and fuel is transported from the fuel tank 200 to the fuel distributor ring through the circulation pipe 300, and sprayed out by each fuel needle of the fuel distributor ring and received by the detection tubes 430. After the fuel supply stops, the multiple detection tubes 430 are controlled to be in the second state, so that the multiple detection tubes 430 are separated from the corresponding fuel needles of the fuel distributor ring. Then, by observing the fuel volume stored in the multiple detection tubes 430, the outlet flow of each fuel needle is collected synchronously, and the fuel liquid level height of each corresponding fuel needle is compared, so as to efficiently and intuitively determine the consistency of the fuel injection quantity of each fuel needle of the fuel distributor ring, thereby meeting the needs of fuel distributor ring balance testing. The specific details of the test device 10 will now be further described with reference to the accompanying drawings.

[0037] Combination Figure 1 as well as Figure 2 The base 100 of this application is provided with a base plate 130, which is located below the first support plate 110. The oil tank 200 is placed on the base plate 130. The base plate 130 and the first support plate 110 are connected by a plurality of first columns 140, and the first support plate 110 and the second support plate 120 are connected by a plurality of second columns 150. Exemplarily, the base plate 130, the first support plate 110 and the second support plate 120 are all oriented in the same direction and have the same size. There are four first columns 140 and four second columns 150. The two ends of the first columns 140 are respectively connected to the corners of the base plate 130 and the first support plate 110, and the two ends of the second columns 150 are respectively connected to the corners of the first support plate 110 and the second support plate 120. The first columns 140 and the second columns 150 are arranged coaxially in the vertical direction.

[0038] Combination Figure 1 In some embodiments, the second support plate 120 is provided with a through hole 121 for the oil distribution ring to pass through. The through hole 121 is adapted to at least a portion of the oil distribution ring so that when the oil distribution ring passes through the through hole 121 of the second support plate 120, the side wall of the through hole 121 can be used to limit the oil distribution ring, so that the oil distribution ring and the like can be stably placed on the top of the support base 410.

[0039] Combination Figure 1 In some embodiments, a support block 160 is connected to the top surface of the second support plate 120. The support block 160 is located at the edge of the through hole 121. The top of the circulation pipe 300 passes through the support block 160 so that the circulation pipe 300 can be fixed to the top surface of the second support plate 120, so as to facilitate the assembly of the circulation pipe 300 with the oil inlet end of the oil distribution ring.

[0040] Figure 3 A schematic diagram of the detection component 400 is shown. (Combined with...) Figure 2 as well as Figure 3 In some embodiments, the top of the support base 410 is provided with a plurality of positioning rods 4101, which are arranged in a ring, and the oil distribution ring can be positioned between the plurality of positioning rods 4101.

[0041] Combination Figure 3 In some embodiments, the detection tube 430 includes a tube body 431 and a valve 432. The top end of the tube body 431 communicates with the corresponding oil needle, and the valve 432 is located in the middle of the tube body 431 to divide the tube body 431 into an upper detection chamber 433 and a lower receiving chamber 434. At least a portion of the sidewall of the detection chamber 433 is transparent, and the transparent portion of the sidewall of the detection chamber 433 is marked with graduations. When testing the oil separator ring, the fuel delivered by each oil needle of the oil separator ring is temporarily stored in the detection chamber 433, and the amount of fuel collected in the detection chamber 433 is quickly read by the graduations on the sidewall of the detection chamber 433. After the oil separator ring test is completed, the control valve 432 is opened, and the fuel in the detection chamber 433 is guided into the lower receiving chamber 434. Then, the valve 432 is closed to empty the fuel in the detection chamber 433, and then another oil separator ring can be tested. For example, the detection tube 430 is a tubular structure supported by a transparent material, and a scale is provided on the side wall of the detection chamber 433 to facilitate the acquisition of the amount of oil collected in the detection chamber 433. The valve 432 can be a solenoid valve to facilitate remote operation.

[0042] Figure 4 It shows Figure 3 The structural diagram of the support 410 in the middle, combined with Figure 3 as well as Figure 4 In some embodiments, the lifting member 420 includes a plurality of first push rods 421. The plurality of first push rods 421 are connected to the support base 410 and are spaced apart around the periphery of the support base 410. The plurality of first push rods 421 and a plurality of detection tubes 430 are respectively arranged one-to-one, and the lifting end of the first push rod 421 is connected to the corresponding detection tube 430. When the plurality of detection tubes 430 are controlled to be in a first state, the lifting ends of the plurality of first push rods 421 are controlled to rise synchronously, thereby switching the plurality of first push rods 421 to the first state; when the plurality of detection tubes 430 are controlled to switch from the first state to the second state, the lifting ends of the plurality of first push rods 421 are controlled to fall synchronously. For example, the bottom of the support base 410 protrudes outward to form a support portion 411, and the plurality of first push rods 421 are connected to the top surface of the support portion 411 of the support base 410. In other embodiments, multiple detection tubes 430 are connected to the same plate, and multiple detection tubes 430 can be switched between the first state and the second state by a first driving member with lifting function. This application does not limit this.

[0043] Combination Figure 3 as well as Figure 4 In some embodiments, the circumferential surface of the support base 410 is provided with multiple first grooves 412 extending vertically. The detection device also includes a guide 440. The guide 440, the first grooves 412 and the detection tube 430 of the detection assembly 400 are provided in a one-to-one correspondence. The guide 440 is connected to the corresponding detection tube 430. The guide 440 has a guide portion 441. The guide portion 441 is adapted to move up and down in the corresponding first groove 412 to ensure that the detection tube 430 moves up and down in a predetermined direction.

[0044] Combination Figure 4 In some embodiments, guide rails 413 are provided on the inner sides of the two vertically extending side walls of the first slide groove 412. Figure 5 This diagram shows the assembly schematic of guide 440 and detection tube 430, combined with... Figure 4 as well as Figure 5 The guide component 440 includes a first connecting frame 442, a second connecting frame 443, and a guide frame 444. The first connecting frame 442 and the second connecting frame 443 are both connected to the detection tube 430, and the first connecting frame 442 is located above the second connecting frame 443. The top of the guide frame 444 is connected to the first connecting frame 442. The guide frame 444 is slidably connected to the corresponding first slide groove 412 and slidably cooperates with the guide rail 413. The guide frame 444 is configured as a guide part 441.

[0045] Combination Figure 4 as well as Figure 5 In some embodiments, the guide frame 444 includes a guide plate 4441 and a first slider 4442. The guide plate 4441 is disposed in the corresponding first slide groove 412. There are two first sliders 4442, which are disposed opposite to each other on both sides of the guide plate 4441 in the width direction. The first slider 4442 is provided with a guide groove 4443. The guide rail 413 slides through the guide groove 4443 of the first slider 4442. When the detection tube 430 switches between the first state and the second state, the detection tube 430 drives the first slider 4442 of the guide member 440 to move vertically back and forth on the corresponding slide rail, thereby guiding the movement of the detection tube 430 and ensuring that the detection tube 430 moves in a predetermined direction.

[0046] Combination Figure 5 In some embodiments, the bottom of the guide frame 444 is provided with a connecting plate 445 extending outward from the guide frame 444. The connecting plate 445 is connected to the lifting end of the corresponding first push rod 421. Then, under the action of the first push rod 421, the guide frame 444 is driven to lift, thereby driving the detection tube 430 to lift, so that the detection tube 430 switches between the first state and the second state.

[0047] During the process of collecting fuel through the detection tube 430, fuel residue may remain on the side wall of the detection tube 430, resulting in inaccurate fuel acquisition within the detection tube 430 and affecting the accuracy of the fuel injection quantity test of the fuel separator ring. Therefore, the detection component 400 provided in this application can rotate relative to the base 100. With this configuration, during the process of controlling the detection tube 430 to switch from the first state to the second state, or after switching to the second state, the detection component 400 is rotated as a whole. This rotation causes the static fuel within the detection tube 430 to be subjected to centrifugal force, effectively overcoming the tendency of fuel to adhere to the inner wall of the detection tube 430 due to surface tension. This ensures that the fuel level remains stable and clear, reducing observation errors and volume measurement deviations caused by fuel residue or adhesion, thus avoiding affecting the accuracy of the fuel injection quantity test of the fuel separator ring. After completing the centrifugal treatment of the fuel, the rotational speed of the detection component 400 is controlled. The downward movement of the fuel reduces the influence of centrifugal force on the fuel. During the continuous and slow rotation of the detection component 400, the operator can simultaneously observe the fuel volume collected in all detection tubes 430. By directly comparing the fuel level height corresponding to each fuel needle, the consistency of the fuel injection volume of each fuel needle in the fuel distribution ring can be efficiently and intuitively determined. In addition, during the process of opening the valve 432 to guide the fuel in the detection chamber 433 to the receiving chamber 434, the rotation of the detection component 400 can also be controlled to guide the fuel in the detection chamber 433 to the receiving chamber 434 as much as possible, thereby improving the accuracy of the fuel test in the detection chamber 433.

[0048] Figure 6 A cross-sectional schematic diagram of the oil storage tank 200 of the test apparatus 10 is shown. (Combined with...) Figure 6 In some embodiments, the testing device 10 further includes a drive motor 500, which is disposed below the first support plate 110. The drive motor 500 is connected to the oil storage tank 200, and its output shaft is connected to the bottom of the support base 410. By controlling the rotation of the drive motor 500, the support base 410 can be driven to rotate, thereby driving the first push rod 421 and the detection tube 430 to rotate synchronously. For example, a protective cover 210 is fixedly connected to the inner top of the oil storage tank 200. The drive motor 500 is disposed inside the protective cover 210, and its output shaft rotatably passes through the top of the oil storage tank 200 and is fixedly connected to the bottom of the support base 410.

[0049] Figure 7 A schematic diagram is shown showing the detection tube 430 switching from a vertical state to an inclined state. (Combined with...) Figure 7In some embodiments, the detection tube 430 can be deflected relative to the central axis of the support 410. During the process of switching the detection tube 430 from the first state to the second state, the detection tube 430 is controlled to tilt relative to the central axis of the support 410, so that the fuel can form a more stable and uniform liquid film under the combined action of centrifugal force and tube wall guidance, eliminating adhering residues and further improving the accuracy of liquid level reading.

[0050] Figure 8 A schematic diagram of the guide frame 444 is shown, combined with Figure 5 as well as Figure 8 In some embodiments, the first connecting frame 442 and the guide frame 444 are rotatably connected, and the detection assembly 400 further includes a second driving member 450. The second driving member 450 and the detection tube 430 are arranged in a one-to-one correspondence. The second driving member 450 is connected to the guide frame 444, and the telescopic end of the second driving member 450 extends and retracts in the horizontal direction. The telescopic end of the second driving member 450 is rotatably connected to the second connecting frame 443. During the process of the detection tube 430 switching from the first state to the second state, controlling the extension of the telescopic end of the second driving member 450 can drive the detection tube 430 to rotate around its connection with the first connecting frame 442, thereby driving the detection tube 430 to tilt towards the central axis of the support base 410.

[0051] Combination Figure 5 as well as Figure 8 In some embodiments, the guide frame 444 is connected to the side facing the detection tube 430 with a first connecting block 460, the detection tube 430 is clamped on one side of the first connecting frame 442, and the other side of the first connecting frame 442 is sleeved on the first connecting block 460 through a first rotating shaft; the detection tube 430 is clamped on one side of the second connecting frame 443, and the other side of the second connecting frame is sleeved on the telescopic end of the second driving member 450 through a second rotating shaft.

[0052] Figure 9 A schematic diagram of the second drive unit 450 is shown. (Combined with...) Figure 8 as well as Figure 9In some embodiments, the guide frame 444 has a through second slide groove 4444, which extends vertically. The second driving member 450 includes a second push rod 451, a fixing plate 452, a second slider 453, a sliding column 454, a positioning block 455, a reset member 456, and a second connecting block 457. One end of the second push rod 451 is connected to the bottom of the first slide groove 412, and the other end of the second push rod 451 is connected to the fixing plate 452. The fixing plate 452 has a third slide groove 45 extending vertically. 21. The second slider 453 is slidably disposed in the third slide groove 4521. One end of the sliding column 454 is connected to the second slider 453, and the other end of the sliding column 454 passes through the second slide groove 4444. The positioning block 455 is slidably sleeved on the sliding column 454 and slidably disposed in the second slide groove 4444. The second connecting block 457 is connected to the other end of the sliding column 454. The second connecting block 457 is sleeved on the other end of the second connecting frame through the second rotating shaft. The second connecting block 457 is configured as the telescopic end of the second driving member 450. When the detection tube 430 is in the first state, it receives fuel delivered by the fuel needle of the fuel distributor ring. At this time, the second push rod 451 is in the closed state, and the second slider 453 is located at the top of the third slide groove 4521, keeping the detection tube 430 locked in a vertical state to ensure smooth fuel reception. After the fuel reception is completed, the detection tube 430 is switched from the first state to the second state. The detection tube 430 disengages from the fuel needle corresponding to the fuel distributor ring, the guide frame 444 descends synchronously, and the second slider 453 moves down within the third slide groove 4521, providing safety for the tilting and rotation of the detection tube 430. In the space, before or during the rotation of the detection tube 430, the second push rod 451 can be controlled to move. The second push rod 451 pushes the fixed plate 452, which, through the fixed plate 452, sliding column 454, and second connecting block 457, drives the second connecting frame 443 via the second connecting head. This causes the detection element to deflect around the first connecting frame 442 and the first connecting block 460, allowing the fuel to form a more stable and uniform liquid film under the combined action of centrifugal force and pipe wall guidance, eliminating adhering residues and ensuring extremely accurate liquid level readings. At the same time, the reset element 456 is compressed and stores energy. After the force of the first push rod 421 is removed, the detection tube 430 returns to a vertical state under the action of the reset element 456.

[0053] In specific implementation, two first push rods 421 can be arranged vertically opposite each other, the reset member 456 can be a spring, which is sleeved on the sliding column 454, and the positioning block 455 can be a ring structure. The circumferential surface of the positioning block 455 is provided with a groove 4551, and the side wall of the second sliding groove 4444 is embedded in the groove 4551 so that the positioning block 455 can move in the second sliding groove 4444.

[0054] In summary, the micro turbojet engine fuel distribution ring flow test device 10 provided in this application can simultaneously verify the fuel injection quantity of the fuel injection needle of the fuel injection ring, so as to synchronously collect and compare the outlet flow of each fuel needle, meet the requirements of fuel distribution ring balance detection, improve detection efficiency, and avoid accuracy problems caused by fuel residue, thereby improving the accuracy of the test, and has good practicality.

[0055] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0056] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0057] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0058] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified. Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A micro turbojet engine oil separator ring flow testing device, characterized in that, The testing apparatus includes: The base is provided with a first support plate and a second support plate, with the second support plate disposed on the first support plate; An oil storage tank is connected to the base and is positioned below the first support plate; The circulation pipe is positioned at its top on the second support plate and at its bottom connected to the oil storage tank. The detection assembly includes a support base, a lifting component, and multiple detection tubes. The support base is connected to the base, the lifting component is connected to the support base, the multiple detection tubes are spaced apart around the periphery of the support base, the multiple detection tubes are connected to the lifting component, the lifting component drives the multiple detection tubes to switch between a first state and a second state, and the detection assembly can rotate relative to the base. Wherein: the oil distribution ring passes through the second support plate and is positioned at the top of the support base; the oil inlet end of the oil distribution ring is connected to the top of the circulation pipe; the oil needles of the oil distribution ring and the detection tubes are arranged in a one-to-one correspondence; when multiple detection tubes are in the first state, multiple detection tubes and corresponding oil needles are connected; when multiple detection tubes are in the second state, multiple detection tubes and corresponding oil needles are disconnected.

2. The micro turbojet engine oil separator flow rate testing device according to claim 1, characterized in that, The lifting component includes: Multiple first push rods are connected to the support base and are spaced apart around the periphery of the support base. Each of the multiple first push rods and multiple detection tubes is arranged in a one-to-one correspondence. The lifting end of the first push rod is connected to the corresponding detection tube.

3. The micro turbojet engine oil separator flow rate testing device according to claim 1, characterized in that, The detection tube includes a tube body and a valve. The top end of the tube body is connected to a corresponding oil needle. The valve is located in the middle of the tube body to divide the tube body into an upper detection chamber and a lower receiving chamber. At least a portion of the sidewall of the detection chamber is transparent, and the transparent portion of the sidewall of the detection chamber is provided with graduations.

4. The micro turbojet engine oil separator flow rate testing device according to claim 1, characterized in that, The testing apparatus also includes: A drive motor is connected to the oil storage tank, and the output shaft of the drive motor is connected to the bottom of the support base.

5. The micro turbojet engine oil separator flow rate testing device according to claim 4, characterized in that, The circumferential surface of the support base is provided with multiple first grooves extending vertically; The detection assembly further includes a guide member, and the guide member, the first slide groove, and the detection tube are arranged in a one-to-one correspondence. The guide member is connected to the corresponding detection tube, and the guide member has a guide portion that adapts to move up and down within the corresponding first slide groove.

6. The micro turbojet engine oil separator flow rate testing device according to claim 5, characterized in that, The guide component includes: Both the first connecting frame and the second connecting frame are connected to the detection tube, with the first connecting frame located on top of the second connecting frame. A guide frame, with its top end connected to the first connecting bracket, is slidably connected to the corresponding first slide groove, and is configured as the guide portion.

7. The micro turbojet engine oil separator flow rate testing device according to claim 6, characterized in that, The detection tube can deflect relative to the central axis of the support.

8. The micro turbojet engine oil separator flow rate testing device according to claim 7, characterized in that, The first connecting frame and the guide frame are rotatably connected; The detection assembly further includes a second driving component, which is configured in a one-to-one correspondence with the detection tube. The second driving component is connected to the guide frame, and the telescopic end of the second driving component extends and retracts in the horizontal direction. The telescopic end of the second driving component is rotatably connected to the second connecting frame.

9. The micro turbojet engine oil separator flow rate testing device according to claim 8, characterized in that, The guide frame has a through second sliding groove that extends vertically. The second driving component includes a second push rod, a fixed plate, a second slider, a sliding column, a positioning block, a reset component, and a second connecting block. One end of the second push rod is connected to the bottom of the first sliding groove, and the other end is connected to the fixed plate. A third sliding groove extending vertically is formed on the fixed plate. The second slider is slidably disposed in the third sliding groove. One end of the sliding column is connected to the second slider, and the other end of the sliding column passes through the second sliding groove. The positioning block is slidably sleeved on the sliding column and slidably disposed in the second sliding groove. The second connecting block is connected to the other end of the sliding column and is sleeved on the second connecting frame via a second rotating shaft. The second connecting block is configured as the telescopic end of the second driving component.

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