A combustion chamber test device for an aero gas turbine and its test method

Abstract

The present invention discloses a combustion chamber test device for an aero gas turbine and a test method thereof, including an engine head. An engine body is installed at the output end of the engine head. An upper mounting plate is arranged at the top of the engine body. A first bottom plate is provided at the bottom of the connecting plate. One end of the top of the first bottom plate is hinged with a positioning rod. The beneficial effects of the present invention are as follows: By driving the bidirectional threaded rod to rotate through a motor, the guide block and the adjustment plate can be driven to move synchronously through the bidirectional threaded rod. During the movement of the guide block, the rotating wheel can be driven to rotate through the first transmission rod and the mounting block, which is convenient for storing and unfolding the rotating wheel. During the storage process of the rotating wheel, the adjustment plate can drive the positioning rod of the through hole of the first support plate to rotate. By inserting the positioning block into the card slot of the fixed plate, the top of the positioning block can be made to fit with the bottom of the second slider. The second slider can be fixed through the positioning block, thereby realizing the support and fixation of the connecting plate.

Description

Technical Field

[0001] The present invention relates to a test device, specifically a combustion chamber test device for an aero gas turbine and its test method, belonging to the technical field of combustion chamber tests for aero gas turbines. Background Technique

[0002] Aviation is a complex and strategically significant human activity, referring to the flight and navigation activities of aircraft in the Earth's atmosphere and airspace. A combustion chamber is a device in which fuel or propellant burns to generate high-temperature gas. It is a combustion device made of high-temperature resistant alloy materials. The space between the top of the piston and the cylinder head after the piston reaches the top dead center is where the fuel burns. It is an important component of gas turbine engines, ramjet engines, and rocket engines, consisting of a diffuser, a combustion chamber shell, a flame tube, a fuel nozzle, and an ignition device, and is divided into single-tube combustion chambers, multiple-tube combustion chambers, and annular combustion chambers. The combustion chamber cannot operate under high temperature, high load, variable operating conditions, corrosive environments, combustion in high-speed airflows, and lean fuel mixtures.

[0003] In the research on global flow staged combustion cycle engine technology, after all flows of hydrogen and helium are burned once in the pre-combustion chamber to drive the turbine, they then enter the combustion chamber for secondary combustion. As a new combustion form, experimental research needs to be carried out to obtain its combustion characteristics. Existing test devices have problems such as being difficult to move and inconvenient to replace during use, and are not easy to move after replacement, which easily increases the work difficulty of staff. Summary of the Invention

[0004] The purpose of the present invention is to provide a combustion chamber test device for an aero gas turbine and its test method to solve the above problems.

[0005] The present invention achieves the above purpose through the following technical solutions. A combustion chamber test device for an aero gas turbine and its test method includes:

[0006] An engine head, the output end of the engine head is equipped with an engine body, the top of the engine body is provided with an upper mounting plate, the bottom of the engine body is provided with a lower mounting plate, and the bottom of the lower mounting plate is equipped with a connecting plate;

[0007] A first bottom plate, the first bottom plate is arranged at the bottom of the connecting plate, one end of the top of the first bottom plate is hinged with a positioning rod, the other end of the top of the first bottom plate is equipped with a fixing block, and one end of the positioning rod is hinged with a second slider;

[0008] A slide rail, the slide rail is arranged at the top of the connecting plate, the top of the slide rail is slidably connected with a first slider, the top of the first slider is bolted with a second bottom plate, and the top of the second bottom plate is bolted with a second support plate;

[0009] A chassis is provided on the opposite side of the connecting plate. A motor is installed inside the chassis. An installation hole is provided inside the connecting plate. The output end of the motor extends into the inside of the connecting plate through the installation hole. A bidirectional threaded rod is installed at the output end of the motor, and the bidirectional threaded rod is located on the inner wall of the connecting plate. The end of the bidirectional threaded rod away from the motor is connected to the inner wall of the connecting plate by a bearing.

[0010] Preferably, a fixing plate is installed on the top of the first bottom plate. A sliding groove is provided at one end of the fixing plate. An adjusting block is slidably connected inside the sliding groove. The top of the adjusting block is fixedly connected to the bottom of the second slider. Support blocks are installed at both ends on the side of the connecting plate. The top of the second slider fits against the bottom of the support block.

[0011] Preferably, a storage groove is provided at the top of the fixed block. A positioning block is provided inside the storage groove. A connecting block is installed at the top of the positioning block. Guide rails are installed on both sides of the top of the fixed block. A guide groove is provided at the top of the positioning block. A sliding bar is slidably connected inside the guide groove. The top of the sliding bar is fixedly connected to the bottom of the guide rail.

[0012] Preferably, substrates are installed on both sides of the upper mounting plate and the lower mounting plate. The substrates on the upper mounting plate and the substrates on the lower mounting plate are connected by bolts. Connecting brackets are installed on the sides of the second bottom plate and the second support plate that are close to each other. The connecting bracket of the second support plate is located on the top of the connecting bracket on the second bottom plate. A positioning hole is provided at the top of the connecting bracket. A plug pin is provided inside the positioning hole.

[0013] Preferably, guide blocks are threadedly installed on the outer sides of both ends of the bidirectional threaded rod. Adjusting plates are threadedly installed on the outer sides of both ends of the bidirectional threaded rod and away from the guide blocks. The top of the guide block is slidably connected to the inner wall of the connecting plate. The top of the adjusting plate is slidably connected to the inner wall of the connecting plate.

[0014] Preferably, a placement groove is provided at the bottom of the connecting plate. Fixing rods are installed at both ends of the top inside the placement groove. The bottom of the fixing rod is hinged to a second transmission rod. An installation block is installed at the bottom of the second transmission rod. A runner is rotatably installed at one end of the installation block.

[0015] Preferably, a first transmission rod is hinged to the front of the guide block. The bottom of the first transmission rod is hinged to the front of the installation block. A pressing groove is provided at the top of the first support plate. The pressing groove communicates with the placement groove. The bottom of the adjusting plate extends into the pressing groove through the placement groove.

[0016] Preferably, through holes are formed in the bottom of the first support plate, and the through holes communicate with the inside of the pressing groove. One end of the positioning rod away from the second slider extends into the through holes, and the outer side of the positioning rod is in contact with the bottom of the adjusting plate.

[0017] Preferably, a storage hole is formed in the bottom of the connecting plate, and the storage hole communicates with the placement groove. One ends of the first transmission rod and the second transmission rod extend to the bottom of the connecting plate through the storage hole. A clamping groove is formed in one end of the fixing plate, and the clamping groove communicates with the sliding groove. The size of the clamping groove corresponds to that of the positioning block.

[0018] A combustion chamber test method for an aero gas turbine, the combustion chamber test method for the aero gas turbine includes the following steps;

[0019] First step: Push the engine body through the runner so that the positioning rod is located at the bottom of the through hole of the first support plate;

[0020] Second step: Push the first slider so that the second bottom plate and the second support plate approach the engine body. The top of the second support plate is in contact with the engine body, and insert the pin into the positioning holes of the two connecting brackets to fix the tail of the engine body;

[0021] Third step: Start the motor through an external control switch. The motor drives the bidirectional threaded rod to rotate. The bidirectional threaded rod drives the runner to disengage from the ground through the guide block and the first transmission rod. At the same time, the adjusting plate drives the positioning rod to rotate;

[0022] Fourth step: Push the connecting block, and the connecting block drives the positioning block to be inserted into the clamping groove of the fixing plate for fixation, and the positioning rod is fixed by the positioning block;

[0023] Fifth step: Implement the reverse movement of the second step operation and the third step operation, which can make the runner fit with the ground. Push the engine body through the runner to facilitate the replacement of the engine body.

[0024] The beneficial effects of the present invention are as follows: First, in the present invention, the outside of the engine body is installed through the upper mounting plate and the lower mounting plate and is fixedly connected by bolts, which can connect the engine body to the connecting plate, increase the installation stability of the engine body, and prevent the engine body from shaking and tipping over. A chassis and a motor are arranged on one side of the connecting plate. The motor can drive the bidirectional threaded rod to rotate, and the bidirectional threaded rod can drive the guide block and the adjusting plate to move synchronously. During the movement of the guide block, the runner can be driven to rotate through the first transmission rod and the mounting block, which is convenient for storing and deploying the runner.

[0025] Secondly, the present invention can limit the rotating wheel through the fixing rod and the second transmission rod. By unfolding the rotating wheel to contact the ground, the engine body can be easily moved by the rotating wheel when disassembling, which can solve the difficulty of moving the engine. The tail of the engine is provided with a second base plate and a second support plate, and the second base plate and the second support plate are fixedly connected by a base plate and bolts. When disassembly is required, only one bolt needs to be removed to release the fixation of the tail of the engine. The second base plate and the second support plate are easily moved by the first slider, and there is no need to disassemble the engine from the bracket, which is conducive to the installation of the engine.

[0026] Third, in the present invention, one end of the positioning rod can enter the through-hole limiter at the bottom of the first support plate. At the same time, when the rotating wheel is stored, the adjusting plate can drive the positioning rod in the through-hole of the first support plate to rotate, and the positioning rod can drive the second slider at the other end to slide, so that the second slider is fitted with the support block. By shifting the connecting block, the positioning block can be driven to slide, and by inserting the positioning block into the slot of the fixing plate, the top of the positioning block can be fitted with the bottom of the second slider. The second slider can be fixed by the positioning block, thereby achieving support and fixation of the connecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0028] Figure 2 It is a right side view of the overall structure of the present invention;

[0029] Figure 3 It is a left side view of the overall structure of the present invention;

[0030] Figure 4 This is a schematic diagram of the internal structure of the connecting plate of the present invention;

[0031] Figure 5 This is a schematic diagram of the storage assembly structure of the present invention;

[0032] Figure 6 This is a schematic diagram of the internal structure of the first base plate of the present invention;

[0033] Figure 7 This is a three-dimensional diagram of the connection structure between the second slider and the fixed plate of the present invention;

[0034] Figure 8 This is a three-dimensional diagram of the connection structure of the fixing block and the positioning block of the present invention.

[0035] In the figure: 1, engine head; 2, engine body; 3, upper mounting plate; 4, lower mounting plate; 5, connecting plate; 501, first support plate; 6, first bottom plate; 7, slide rail; 701, first slider; 8, second bottom plate; 801, second support plate; 9, fixed block; 901, guide rail; 902, positioning block; 903, connecting block; 10, positioning rod; 1001, second slider; 1002, fixing plate; 11, chassis; 12, motor; 1201, bidirectional threaded rod; 13, guide block; 14, first transmission rod; 15, runner; 1501, mounting block; 16, fixed rod; 1601, second transmission rod; 17, adjusting plate. Detailed implementation manner

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer to Figure 1-8 As shown, a combustion chamber test device for an aero gas turbine and its test method include:

[0038] An engine head 1, the output end of the engine head 1 is installed with an engine body 2, the top of the engine body 2 is provided with an upper mounting plate 3, the bottom of the engine body 2 is provided with a lower mounting plate 4, the bottom of the lower mounting plate 4 is installed with a connecting plate 5, and the shapes of the upper mounting plate 3 and the lower mounting plate 4 are both semicircular. The semicircular shape can fit more closely with the engine body 2, facilitating the fixation of the engine body 2;

[0039] Substrates are installed on both sides of the upper mounting plate 3 and the lower mounting plate 4. The substrate on the upper mounting plate 3 is connected to the substrate on the lower mounting plate 4 by bolts. The bolts facilitate the installation of the upper mounting plate 3 and the lower mounting plate 4, and can quickly fix the tail of the engine body 2. Connecting brackets are installed on the sides of the second bottom plate 8 and the second support plate 801 close to each other. The connecting bracket of the second support plate 801 is located above the connecting bracket on the second bottom plate 8. A positioning hole is provided in the top of the connecting bracket, and a pin is arranged inside the positioning hole. By inserting the pin into the positioning hole, the quick fixation of the connecting bracket can be realized;

[0040] A first bottom plate 6, the first bottom plate 6 is arranged at the bottom of the connecting plate 5. One end of the top of the first bottom plate 6 is hinged with a positioning rod 10. The shape of the positioning rod 10 is L-shaped. The other end of the top of the first bottom plate 6 is installed with a fixed block 9. One end of the positioning rod 10 is hinged with a second slider 1001, and the rotation of the positioning rod 10 can drive the rotation of the second slider 1001;

[0041] A placement groove is formed at the bottom of the connecting plate 5. At both ends of the top inside the placement groove, fixing rods 16 are installed. At the bottom of the fixing rod 16, a second transmission rod 1601 is hinged. At the bottom of the second transmission rod 1601, a mounting block 1501 is installed. At one end of the mounting block 1501, a runner 15 is rotatably installed. Through the second transmission rod 1601 and the mounting block 1501, the runner 15 can be limited.

[0042] A receiving groove is formed at the top of the fixing block 9. Inside the receiving groove, a positioning block 902 is arranged. At the top of the positioning block 902, a connecting block 903 is installed. On both sides of the top of the fixing block 9, guide rails 901 are installed. At the top of the positioning block 902, a guiding groove is formed. Inside the guiding groove, a sliding strip is slidably connected. The top of the sliding strip is fixedly connected to the bottom of the guide rail 901. The positioning block 902 can slide inside the guiding groove through the sliding strip. The shape of the positioning block 902 is a right trapezoid, and its side close to the fixing plate 1002 slopes downward, which is convenient for the positioning block 902 to enter the fixing plate 1002.

[0043] On the top of the first bottom plate 6, a fixing plate 1002 is installed. At one end of the fixing plate 1002, a sliding groove is formed. Inside the sliding groove, an adjusting block is slidably connected. The top of the adjusting block is fixedly connected to the bottom of the second slider 1001. The second slider 1001 can slide in the sliding groove of the fixing plate 1002 through the adjusting block. Through the adjusting block, the second slider 1001 can be limited. At both ends of the side of the connecting plate 5, support blocks are installed. The top of the second slider 1001 is in contact with the bottom of the support block. Through the second slider, the support block can be limited and supported to a certain extent.

[0044] A slide rail 7 is arranged on the top of the connecting plate 5. On the top of the slide rail 7, a first slider 701 is slidably connected. On the top of the first slider 701, a second bottom plate 8 is bolted. On the top of the second bottom plate 8, a second support plate 801 is bolted. The first slider 701 slides on the top of the slide rail 7, and the distance between the second bottom plates 8 can be adjusted.

[0045] A chassis 11 is arranged on the opposite side of the connecting plate 5. Inside the chassis 11, a motor 12 is installed. The chassis 11 can play a certain role in protecting the motor 12. An installation hole is formed inside the connecting plate 5. The output end of the motor 12 extends to the inside of the connecting plate 5 through the installation hole. The output end of the motor 12 is installed with a bidirectional threaded rod 1201, and the bidirectional threaded rod 1201 is located on the inner wall of the connecting plate 5. The end of the bidirectional threaded rod 1201 far from the motor 12 is connected to the inner wall of the connecting plate 5 through a bearing. Through the motor 12, the bidirectional threaded rod 1201 can be driven to rotate axially on the inner wall of the connecting plate 5.

[0046] On the outer sides of both ends of the bidirectional threaded rod 1201, guide blocks 13 are threadedly installed. On the outer sides of both ends of the bidirectional threaded rod 1201 and away from the guide blocks 13, adjusting plates 17 are threadedly installed. By rotating the bidirectional threaded rod 1201, relative rotation of the two adjusting plates 17 can be achieved. The top of the guide block 13 is slidably connected to the inner wall of the connecting plate 5, and the top of the adjusting plate 17 is slidably connected to the inner wall of the connecting plate 5. The tops of the guide block 13 and the adjusting plate 17 can play a certain limiting role through the connecting plate 5 to realize the left and right movement of the guide block 13 and the adjusting plate 17;

[0047] The front of the guide block 13 is hinged with a first transmission rod 14. The bottom of the first transmission rod 14 is hinged with the front of the mounting block 1501. A pressing groove is formed at the top of the first support plate 501, and the pressing groove communicates with the placement groove. The bottom of the adjusting plate ۱۷ extends into the pressing groove through the placement groove. The adjusting plate 17 can contact the positioning rod 10 through the placement groove and the pressing groove. During the process of the adjusting plate 17 moving closer to the runner 15, one end of the positioning rod 10 can be driven to rotate;

[0048] A storage hole is formed at the bottom of the connecting plate 5, and the storage hole communicates with the placement groove. One ends of the first transmission rod 14 and the second transmission rod 1601 extend to the bottom of the connecting plate 5 through the storage hole. A card slot is formed at one end of the fixing plate 1002, and the card slot communicates with the sliding groove. The size of the card slot corresponds to that of the positioning block 902. When the positioning block 902 is inserted into the card slot of the fixing plate 1002, it can be attached to the second slider 1001. The second slider 1001 is limited by the positioning block 902 to prevent it from sliding;

[0049] A through hole is formed at the bottom of the first support plate 501, and the through hole communicates with the inside of the pressing groove. One end of the positioning rod 10 away from the second slider 1001 extends into the through hole, and the outer side of the positioning rod 10 is attached to the bottom of the adjusting plate 17.

[0050] A combustion chamber test method for an aero gas turbine, the combustion chamber test method for an aero gas turbine includes the following steps;

[0051] First step: Push the engine fuselage 2 through the runner 15 so that the positioning rod 10 is located at the bottom of the through hole of the first support plate 501;

[0052] Second step: Push the first slider 701 so that the second bottom plate 8 and the second support plate 801 approach the engine fuselage 2. The top of the second support plate 801 is attached to the engine fuselage 2, and a pin is inserted into the positioning holes of the two connecting brackets to fix the tail of the engine fuselage 2;

[0053] Step 3: Start the motor 12 through the external control switch. The motor 12 drives the bidirectional threaded rod 1201 to rotate. The bidirectional threaded rod 1201 drives the runner 15 to disengage from the ground through the guide block 13 and the first transmission rod 14. At the same time, the adjusting plate 17 drives the positioning rod 10 to rotate;

[0054] Step 4: Push the connecting block 903. The connecting block 903 drives the positioning block 902 to insert into the card slot of the fixing plate 1002 for fixation, and fix the positioning rod 10 through the positioning block 902;

[0055] Step 5: Implement the reverse movement of the operations in Step 2 and Step 3, which can make the runner 15 fit with the ground. Push the engine body 2 through the runner 15 to facilitate the replacement of the engine body 2.

[0056] When the present invention is in use, refer to Figures 1 to 8 ;

[0057] Implement the operation of Step 1. When in use, drive the engine body 2 to move through the runner 15, push the engine body 2 to the top of the first bottom plate 6 and the slide rail 7, and make one end of the positioning rod 10 located at the bottom of the through hole of the first support plate 501;

[0058] Implement the operation of Step 2. The staff slides the first slider 701 towards the mutually approaching ends, so that the second bottom plate 8 and the second support plate 801 approach the engine body 2. At the same time, fix the two connecting brackets through the pin;

[0059] Implement the operation of Step 3. Start the motor 12 through the external control switch. The motor 12 drives the bidirectional threaded rod 1201 to rotate. The rotation of the bidirectional threaded rod 1201 drives the two guide blocks 13 to approach each other. The guide block 13 drives the first transmission rod 14 to rotate. The first transmission rod 14 drives the mounting block 1501 to rotate. The mounting block 1501 drives the runner 15 to rotate. Limit the runner 15 through the fixing rod 16 and the second transmission rod 1601 to make the runner 15 disengage from the ground;

[0060] At the same time, the bidirectional threaded rod 1201 drives the two adjusting plates 17 to approach each other. During the movement of the adjusting plate 17, one end of the positioning rod 10 is squeezed, so that one end of the positioning rod 10 rotates. One end of the positioning rod 10 drives the second slider 1001 to slide. When the second slider 1001 moves to a certain position, it fits with the support block;

[0061] Implement the operation of Step 4. The staff pushes the connecting block 903 towards the end close to the engine body 2. The connecting block 903 drives the positioning block 902 to slide, so that the positioning block 902 inserts into the card slot of the fixing plate 1002 for fixation. Fix the second slider 1001 through the positioning block 902, thereby fixing the positioning rod 10. Fix the connecting plate 5 through the positioning rod 10;

[0062] When performing the fifth operation and the engine body 2 needs to be replaced, just perform the reverse movement of the second operation and the third operation to make the runner 15 contact the ground, and then push the engine body 2 through the runner 15.

[0063] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A combustion chamber test device for an aero gas turbine, characterized in that, Including: An engine head (1), the output end of the engine head (1) is equipped with an engine body (2), the top of the engine body (2) is provided with an upper mounting plate (3), the bottom of the engine body (2) is provided with a lower mounting plate (4), and the bottom of the lower mounting plate (4) is equipped with a connecting plate (5); A first bottom plate (6), the first bottom plate (6) is arranged at the bottom of the connecting plate (5), one end of the top of the first bottom plate (6) is hinged with a positioning rod (10), the other end of the top of the first bottom plate (6) is equipped with a fixing block (9), and one end of the positioning rod (10) is hinged with a second slider (1001); A slide rail (7), the slide rail (7) is arranged at the top of the connecting plate (5), the top of the slide rail (7) is slidably connected with a first slider (701), the top of the first slider (701) is bolted with a second bottom plate (8), and the top of the second bottom plate (8) is bolted with a second support plate (801); A chassis (11), the chassis (11) is arranged on the opposite side of the connecting plate (5), a motor (12) is installed inside the chassis (11), a mounting hole is formed inside the connecting plate (5), the output end of the motor (12) extends into the inside of the connecting plate (5) through the mounting hole, the output end of the motor (12) is equipped with a bidirectional threaded rod (1201), and the bidirectional threaded rod (1201) is located on the inner wall of the connecting plate (5), and the end of the bidirectional threaded rod (1201) far from the motor (12) is connected to the inner wall of the connecting plate (5) by a bearing; Support blocks are installed at both ends of the side of the connecting plate (5), and the top of the second slider (1001) is in contact with the bottom of the support block; Guide blocks (13) are threadedly installed on the outer sides of both ends of the bidirectional threaded rod (1201), and adjusting plates (17) are threadedly installed on the outer sides of both ends of the bidirectional threaded rod (1201) and far from the guide blocks (13); One side of the adjusting plate (17) is fixedly connected with a first support plate (501); A pressing groove is formed at the top of the first support plate (501), the pressing groove communicates with the placing groove, and the bottom of the adjusting plate (17) extends into the inside of the pressing groove through the placing groove; The tops of the guide blocks (13) and the adjusting plates (17) can play a certain limiting role through the connecting plate (5), so as to realize the left and right movement of the guide blocks (13) and the adjusting plates (17).

2. The combustion chamber test device of an aero gas turbine according to claim 1, characterized in that: A fixing plate (1002) is installed at the top of the first bottom plate (6), a sliding groove is formed at one end of the fixing plate (1002), an adjusting block is slidably connected inside the sliding groove, and the top of the adjusting block is fixedly connected with the bottom of the second slider (1001).

3. The combustion chamber test device of an aero gas turbine according to claim 2, characterized in that: A receiving groove is formed at the top of the fixed block (9), a positioning block (902) is arranged inside the receiving groove, a connecting block (903) is installed at the top of the positioning block (902), guide rails (901) are installed on both sides of the top of the fixed block (9), a guiding groove is formed at the top of the positioning block (902), a sliding bar is slidably connected inside the guiding groove, and the top of the sliding bar is fixedly connected to the bottom of the guide rail (901).

4. The combustion chamber test device of an aero gas turbine according to claim 3, characterized in that: Substrates are installed on both sides of the upper mounting plate (3) and the lower mounting plate (4), the substrate on the upper mounting plate (3) is connected to the substrate on the lower mounting plate (4) by bolts, connecting brackets are installed on the sides of the second bottom plate (8) and the second support plate (801) close to each other, the connecting bracket of the second support plate (801) is located above the connecting bracket on the second bottom plate (8), positioning holes are formed at the top of the connecting bracket, and pins are arranged inside the positioning holes.

5. The combustion chamber test device for an aero gas turbine according to claim 4, characterized in that: The top of the guiding block (13) is slidably connected to the inner wall of the connecting plate (5), and the top of the adjusting plate (17) is slidably connected to the inner wall of the connecting plate (5).

6. The combustion chamber test device of an aero gas turbine according to claim 5, characterized in that: A placing groove is formed at the bottom of the connecting plate (5), fixing rods (16) are installed at both ends of the inner top of the placing groove, a second transmission rod (1601) is hinged to the bottom of the fixing rod (16), an installation block (1501) is installed at the bottom of the second transmission rod (1601), and a runner (15) is rotatably installed at one end of the installation block (1501).

7. An experimental device for the combustion chamber of an aero gas turbine according to claim 6, characterized in that: A first transmission rod (14) is hinged to the front of the guiding block (13), and the bottom of the first transmission rod (14) is hinged to the front of the installation block (1501).

8. The combustion chamber test device for an aero gas turbine according to claim 7, characterized in that: A through hole is formed at the bottom of the first support plate (501), the through hole is communicated with the inside of the pressing groove, the end of the positioning rod (10) away from the second slider (1001) extends into the through hole, and the outer side of the positioning rod (10) is attached to the bottom of the adjusting plate (17).

9. The combustion chamber test device of an aero gas turbine according to claim 8, characterized in that: A receiving hole is formed at the bottom of the connecting plate (5), the receiving hole is communicated with the placing groove, one ends of the first transmission rod (14) and the second transmission rod (1601) extend to the bottom of the connecting plate (5) through the receiving hole, a clamping groove is formed at one end of the fixing plate (1002), the clamping groove is communicated with the sliding groove, and the size of the clamping groove corresponds to that of the positioning block (902).

10. The test method of a combustion chamber test device for an aero gas turbine according to claim 9, characterized in that: The combustion chamber test method of the aero gas turbine includes the following steps; First step: Push the engine fuselage (2) through the runner (15) to make the positioning rod (10) located at the bottom of the through hole of the first support plate (501); Second step: Push the first slider (701) to make the second bottom plate (8) and the second support plate (801) close to the engine fuselage (2), the top of the second support plate (801) is attached to the engine fuselage (2), and insert the pin into the positioning holes of the two connecting brackets to fix the tail of the engine fuselage (2); Step 3: Start the motor (12) through an external control switch. The motor (12) drives the bidirectional threaded rod (1201) to rotate. The bidirectional threaded rod (1201) drives the runner (15) to disengage from the ground through the guide block (13) and the first transmission rod (14). At the same time, the adjusting plate (17) drives the positioning rod (10) to rotate; Step 4: Push the connecting block (903). The connecting block (903) drives the positioning block (902) to insert into the card slot of the fixing plate (1002) for fixation, and fix the positioning rod (10) through the positioning block (902); Step 5: Implement the reverse movement of the operations in Step 2 and Step 3, which can make the runner (15) fit with the ground. Push the engine body (2) through the runner (15) to facilitate the replacement of the engine body (2).

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