A separated high-temperature shooting test device and a test method

Abstract

The present application relates to the technical field of structural impact resistance test detection, and discloses a separated high-temperature shooting test device and a test method, which comprises a mounting frame; a mounting table is arranged on the mounting frame, and an angle-adjustable clamp mechanism is arranged on the mounting table; a machine case test piece is arranged on the clamp mechanism; a heating mechanism is slidably arranged on the mounting frame through a lifting mechanism; the heating mechanism is driven to slide along the mounting frame through the lifting mechanism, so that the heating mechanism can switch the machine case test piece between a covered state and a separated state; and an impact mechanism is used for launching a blade test piece towards the machine case test piece, so that the shooting test and the similarity of the real aero-engine containment process are ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of structural impact resistance test detection, in particular to a separated high-temperature shooting test device and a test method. BACKGROUND

[0002] When the blade of an aero-engine breaks during high-speed rotation, it will be thrown out under the action of centrifugal force. The thrown blade fragments can penetrate the engine case and hit the cabin, fuel tank, hydraulic pipeline and cockpit of the aircraft, which may cause the aircraft accident and bring great harm to the flight safety of the aircraft. If the engine case can successfully prevent the penetration of the fragments, i.e. the engine case has the containment of the failed fragments, the occurrence of such accidents can be reduced.

[0003] At present, in the ballistic impact test for the containment design of the engine case, a plane target plate or a certain section of the engine case is directly cut as the impact object. Compared with the whole ring-shaped or split ring-shaped engine case commonly used by the actual engine, there is still a big gap in geometric characteristics, which will lead to a big difference between the boundary conditions of the target plate and the actual engine case, thereby limiting the guiding effect of such experiments on the containment design of the engine case. In addition, for the turbine case of the actual engine, the service temperature is about 600 DEG C, and the current ballistic impact test device cannot simulate the ballistic impact test in high-temperature environment. SUMMARY

[0004] The purpose of the present application is to provide a separated high-temperature shooting test device and a test method, which aims to solve or improve at least one of the above technical problems.

[0005] To achieve the above purpose, the present application provides the following scheme: the present application provides a separated high-temperature shooting test device, comprising:

[0006] a mounting frame;

[0007] a mounting table arranged on the mounting frame, wherein an angle-adjustable clamp mechanism is arranged on the mounting table, and a turbine case test piece is arranged on the clamp mechanism;

[0008] a heating mechanism slidably arranged on the mounting frame through a lifting mechanism, wherein the heating mechanism is driven to slide along the mounting frame through the lifting mechanism, so that the heating mechanism can switch between the covering state and the separated state of the turbine case test piece;

[0009] an impact mechanism for launching a blade test piece towards the turbine case test piece.

[0010] Optionally, the lifting mechanism comprises:

[0011] a first power source arranged on the mounting frame;

[0012] A connecting cable is arranged at the output end of the first power source, and the connecting cable is connected with the heating mechanism.

[0013] Optionally, a plurality of sliding rails are arranged on the mounting frame, and rollers are slidingly fitted on the sliding rails, and the rollers are connected with the heating mechanism.

[0014] Optionally, the heating mechanism comprises:

[0015] A heating box is open towards one end of the casing test piece;

[0016] A heat source is arranged in the heating box.

[0017] Optionally, first and second observation windows are arranged on the heating box.

[0018] Optionally, the impact mechanism comprises:

[0019] A second power source;

[0020] A launching chamber is connected with the second power source;

[0021] A barrel is connected with the launching chamber, and an ammunition support is slidingly arranged in the barrel, and the ammunition support is used for being connected with the blade test piece;

[0022] A separator is arranged at the outlet end of the barrel.

[0023] Optionally, a laser speed measuring device is arranged between the impact mechanism and the casing test piece.

[0024] Optionally, the first power source is a winch.

[0025] Optionally, the second power source is a gas tank.

[0026] The application further discloses a separated high-temperature shooting test method, which comprises the following steps:

[0027] The casing test piece is installed on the clamp mechanism, and the angle of the casing test piece is adjusted;

[0028] The heating mechanism is driven by the lifting mechanism to be wrapped on the casing test piece for heating;

[0029] When the casing test piece reaches a preset temperature, the heating mechanism is separated from the casing test piece by the lifting mechanism;

[0030] The blade test piece is launched on the casing test piece by the impact mechanism.

[0031] The application discloses the following technical effects:

[0032] 1. By setting an angle-adjustable fixture mechanism on the mounting table, it can be applied to full-ring or split-ring casing test pieces, improving the authenticity of the test.

[0033] 2. By arranging a sliding heating mechanism on the mounting frame and driving the heating mechanism to slide through the lifting mechanism, the heating mechanism can cover the casing test piece to heat the casing test piece, and separate from the casing test piece after the casing test piece reaches the preset temperature, thereby ensuring a high-temperature environment for the casing test piece, simulating the impact performance of the machine brake under high temperature, and ensuring the similarity between the target shooting test and the actual aircraft engine containment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of this application. The exemplary embodiments and descriptions of this application are intended to explain this application and do not constitute an improper limitation on this application. In the accompanying drawings:

[0035] Fig. 1 This is a schematic diagram of the heating mechanism assembly of the present invention;

[0036] Fig. 2 This is a schematic diagram of the assembly of the impact mechanism of the present invention;

[0037] Fig. 3 This is a schematic diagram of a casing test piece covered by a heating box according to the present invention.

[0038] In the figure: 1. First power source; 2. Connecting steel cable; 3. Roller; 4. First observation window; 5. Second observation window; 6. Heating box; 7. Mounting frame; 8. Receiver test piece; 9. Mounting table; 10. Slide rail; 11. Second power source; 12. Launch chamber; 13. Bullet support; 14. Blade test piece; 15. Gun barrel; 16. Separator; 17. Laser speed measuring device. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] Reference Figs. 1-3 The present invention provides a separate high-temperature target shooting test device, comprising:

[0042] Mounting frame 7;

[0043] The mounting table 9 is arranged on the mounting frame 7, and an angle-adjustable clamp mechanism is arranged on the mounting table 9, and the clamp mechanism is used for mounting the casing test piece 8;

[0044] The heating mechanism is slidably arranged on the mounting frame 7 through the lifting mechanism, the heating mechanism is driven to slide along the mounting frame 7 through the lifting mechanism, and the heating mechanism can switch between the covering state and the separated state of the casing test piece 8;

[0045] The impact mechanism is used for launching the blade test piece 14 towards the casing test piece 8.

[0046] By arranging the angle-adjustable clamp mechanism on the mounting table 9, the casing test piece 8 in the whole ring shape or the split ring shape can be applied, and the test authenticity is improved.

[0047] By arranging the slidable heating mechanism on the mounting frame 7, the heating mechanism is driven to slide through the lifting mechanism, the heating mechanism can cover the casing test piece 8 to heat the casing test piece 8, and the heating mechanism can be separated from the casing test piece 8 after the casing test piece 8 reaches a preset temperature, so that the high-temperature environment of the casing test piece 8 is ensured, the impact performance of the casing under high temperature is simulated, and the similarity between the shooting test and the real aero-engine containment process is ensured.

[0048] In an embodiment of the present application, the lifting mechanism comprises:

[0049] The first power source 1 is arranged on the mounting frame 7, and the first power source 1 is a winch;

[0050] The connecting cable 2 is arranged at the output end of the first power source 1, and the connecting cable 2 is connected with the heating mechanism.

[0051] The winch winds the connecting cable 2 to drive the heating mechanism to slide along the mounting frame 7.

[0052] The winch can be controlled in a remote control mode, so that the operation safety of the operator is ensured while the operation is simple.

[0053] In an embodiment of the present application, a plurality of sliding rails 10 are arranged on the mounting frame 7, a roller 3 is slidably matched with the sliding rail 10, and the roller 3 is connected with the heating mechanism.

[0054] The sliding rail 10 and the roller 3 can guide the heating mechanism, and the sliding stability of the heating mechanism is improved.

[0055] In an embodiment of the present application, the heating mechanism comprises:

[0056] The heating box 6 is open at one end facing the casing test piece 8;

[0057] a heat source arranged in the heating box 6.

[0058] Further, the temperature of the heat source can be freely regulated, and the highest temperature can reach 550 DEG C.

[0059] In one embodiment of the present application, the heating box 6 is provided with a first observation window 4 and a second observation window 5.

[0060] The first observation window 4 and the second observation window 5 can be used to observe the state of the internal casing test piece 8.

[0061] In one embodiment of the present application, the impact mechanism comprises:

[0062] a second power source 11, which is a gas tank;

[0063] a launching chamber 12 connected with the second power source 11;

[0064] a barrel 15 connected with the launching chamber 12, and a bullet holder 13 slidingly arranged in the barrel 15, the bullet holder 13 being used to connect with the blade test piece 14;

[0065] a separator 16 arranged at the outlet end of the barrel 15.

[0066] The blade test piece 14 is installed in the bullet holder 13 for fixation, and the posture of the bullet holder 13 in the barrel 15 is ensured to be unchanged. The impact speed of the blade test piece 14 is adjusted by adjusting the pressure in the barrel 15. After the bullet holder 13 is launched, the bullet holder 13 and the blade test piece 14 are separated by the separator 16 at the end of the barrel 15, and the blade test piece 14 impacts the casing test piece 8.

[0067] Further, the heating box 6 and the mounting table 9 are composed of heat insulation materials, and the surface of the mounting table 9 is wrapped with asbestos ropes in the part in contact with the lower surface of the heating box 6, so as to ensure the sealing and heat insulation effect, and ensure that the temperature of the test piece is uniform and stable during the simulation of high-temperature test.

[0068] In one embodiment of the present application, a laser speed measuring device 17 is further arranged between the impact mechanism and the casing test piece 8.

[0069] The impact speed of the blade test piece 14 is tested by the laser speed measuring device 17, and the containment impact test under a specific speed and temperature is completed.

[0070] The present application further provides a separated high-temperature shooting test method, which comprises the following steps:

[0071] The casing test piece 8 is installed on the clamp mechanism, and the angle of the casing test piece 8 is adjusted, and the distance between the impact mechanism and the casing test piece 8 is adjusted;

[0072] The heating mechanism is driven by the lifting mechanism to cover the machine case test piece 8 for heating, the fixed pin is inserted, and the asbestos rope is wound on the lower surface of the heating box 6.

[0073] When the machine case test piece 8 reaches the preset temperature, the heating mechanism is driven by the lifting mechanism to separate from the machine case test piece 8, the fixed pin is removed, the heating box 6 is lifted to the fixed position by the winch, and the protection pin is inserted.

[0074] The blade test piece 14 is launched on the machine case test piece 8 by the impact mechanism, and the impact speed of the blade test piece 14 is tested by the laser speed measuring device 17.

[0075] The method heats and keeps the machine case test piece 8 by the movable heating box 6, so that the machine case test piece 8 reaches and maintains the temperature of the high-temperature environment of the real aero-engine working for a period of time, thereby effectively simulating the impact performance of the turbine case under high temperature, guaranteeing the similarity between the shooting test and the real aero-engine containment process, and providing an implementable device for the impact performance research of the machine case under high temperature.

[0076] The gas tank pressure, the installation angle of the machine case test piece 8 and the temperature of the heating box 6 can be adjusted, so that the engine case impact test under different impact speeds, different impact angles and different sample environment temperatures can be realized.

[0077] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application.

[0078] The above-described embodiments are only preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application.

Claims

1. A separate high-temperature target shooting test device, characterized in that: include: Mounting frame (7); A mounting platform (9) is provided on the mounting frame (7), wherein the mounting platform (9) is provided with a clamp mechanism with an adjustable angle, and the clamp mechanism is used to install a casing test piece (8); A heating mechanism is slidably arranged on the mounting frame (7) via a lifting mechanism, and the heating mechanism is driven to slide along the mounting frame (7) by the lifting mechanism, so that the heating mechanism can switch the casing test piece (8) between a covering state and a separation state; The impact mechanism is used for launching the blade test piece (14) toward the casing test piece (8).

2. A separate high-temperature target shooting test device according to claim 1, characterized in that: The lifting mechanism comprises: A first power source (1) is arranged on the mounting frame (7); A connecting steel cable (2) is provided at the output end of the first power source (1), and the connecting steel cable (2) is connected to the heating mechanism.

3. A separate high-temperature target shooting test device according to claim 1, characterized in that: A plurality of slide rails (10) are provided on the mounting frame (7), rollers (3) are slidably fitted on the slide rails (10), and the rollers (3) are connected to the heating mechanism.

4. A separate high-temperature target shooting test device according to claim 1, characterized in that: The heating mechanism comprises: A heating box (6) is open at one end toward the casing test piece (8); The heat source is arranged in the heating box (6).

5. A separate high-temperature target shooting test device according to claim 4, characterized in that: The heating box (6) is provided with a first observation window (4) and a second observation window (5).

6. The separate high-temperature target shooting test device according to claim 1, characterized in that: The impact mechanism comprises: a second power source (11); a launching chamber (12), connected to the second power source (11); A gun barrel (15) is connected to the firing chamber (12), a cartridge case (13) is slidably provided inside the gun barrel (15), and the cartridge case (13) is used to be connected to a blade test piece (14); A separator (16) is arranged at the outlet end of the gun barrel (15).

7. The separate high-temperature target shooting test device according to claim 1, characterized in that: It also includes a laser speed measuring device (17) which is arranged between the impact mechanism and the casing test piece (8).

8. The separate high-temperature target shooting test device according to claim 2, characterized in that: The first power source (1) is a winch.

9. The separate high-temperature target shooting test device according to claim 6, characterized in that: The second power source (11) is a gas tank.

10. A separate high-temperature target shooting test method, based on the separate high-temperature target shooting test device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Mounting the receiver test piece (8) on the fixture mechanism and adjusting the angle of the receiver test piece (8); The heating mechanism is driven by the lifting mechanism to cover the casing test piece (8) for heating; When the casing test piece (8) reaches a preset temperature, the heating mechanism is driven to separate from the casing test piece (8) by the lifting mechanism; The blade test piece (14) is launched onto the casing test piece (8) by the impact mechanism.

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