Separated high-temperature targeting test device and test method

Abstract

The invention relates to the technical field of structural shock resistance test detection, and discloses a separated high-temperature targeting test device and test method. The mounting table is arranged on the mounting rack, an angle-adjustable clamp mechanism is arranged on the mounting table, and the clamp mechanism is used for mounting a cartridge receiver test piece; the heating mechanism is slidably arranged on the mounting rack through the lifting mechanism, and the heating mechanism is driven by the lifting mechanism to slide along the mounting rack, so that the heating mechanism can switch the casing test piece between a coating state and a separation state; and the impact mechanism is used for launching the blade test piece towards the cartridge receiver test piece. According to the invention, the similarity between a target shooting test and a real aero-engine containment process is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of structural impact resistance test detection, and in particular to a separate high-temperature target shooting test device and a test method. Background Art

[0002] When an aircraft engine blade breaks during high-speed rotation, it will be thrown out under the action of centrifugal force. The thrown blade fragments may penetrate the engine casing and hit the aircraft cabin, fuel tank, hydraulic pipeline and cockpit, etc., which may cause the aircraft to crash and bring great harm to the flight safety of the aircraft. If the aircraft engine casing can successfully prevent the fragments from penetrating, that is, the engine casing is tolerant of failed fragments, the occurrence of such accidents can be reduced.

[0003] In the current ballistic impact tests on casing containment design, most of them use flat target plates or directly cut a section of casing as the impact object. Compared with the full ring or split ring casings mostly used in real engines, there is still a big gap in geometric characteristics. This will lead to a big difference between the boundary conditions of the target plate and the actual engine casing, thus limiting the guiding role of such experiments in casing containment design. In addition, for the turbine casing of a real engine, its service environment temperature is about 600℃, and the current ballistic impact test equipment cannot simulate ballistic impact tests in high temperature environments. Summary of the invention

[0004] The object of the present invention is to provide a separate high-temperature target shooting test device and a test method, aiming to solve or improve at least one of the above-mentioned technical problems.

[0005] To achieve the above object, the present invention provides the following solution: The present invention provides a separate high-temperature target shooting test device, comprising:

[0006] Mounting frame;

[0007] A mounting platform, arranged on the mounting frame, wherein the mounting platform is provided with a clamp mechanism with an adjustable angle, and the clamp mechanism is used to mount a casing test piece;

[0008] A heating mechanism is slidably disposed on the mounting frame through a lifting mechanism, and the heating mechanism is driven to slide along the mounting frame by the lifting mechanism, so that the heating mechanism can switch the casing test piece between a covering state and a separation state;

[0009] The impact mechanism is used to launch the blade test piece toward the casing test piece.

[0010] Optionally, the lifting mechanism includes:

[0011] A first power source is disposed on the mounting frame;

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

[0013] Optionally, a plurality of slide rails are provided on the mounting frame, rollers are slidably fitted on the slide rails, and the rollers are connected to the heating mechanism.

[0014] Optionally, the heating mechanism includes:

[0015] a heating box, open toward one end of the casing test piece;

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

[0017] Optionally, a first observation window and a second observation window are provided on the heating box.

[0018] Optionally, the impact mechanism includes:

[0019] Second power source;

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

[0021] A gun barrel connected to the firing chamber, wherein a buttress is slidably arranged inside the gun barrel, and the buttress is used to connect with the blade test piece;

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

[0023] Optionally, a laser speed measuring device is also included, which 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 present invention also discloses a separate high-temperature target shooting test method, comprising the following steps:

[0027] Install the receiver test piece onto the fixture mechanism and adjust the angle of the receiver test piece;

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

[0029] When the casing test piece reaches a preset temperature, the heating mechanism is driven to separate from the casing test piece through the lifting mechanism;

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

[0031] The present invention 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 to improve the authenticity of the test.

[0033] 2. By arranging a slidable 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 a 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 drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0035] Figure 1 It is a schematic diagram of the heating mechanism assembly of the present invention;

[0036] Figure 2 It is a schematic diagram of the assembly of the impact mechanism of the present invention;

[0037] Figure 3 It is a schematic diagram of a casing test piece covered by a heating box of 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. casing test piece; 9. mounting table; 10. slide rail; 11. second power source; 12. launching chamber; 13. cartridge case; 14. blade test piece; 15. gun barrel; 16. separator; 17. laser speed measuring device. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work 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 Figure 1-Figure 3 The present invention provides a separate high-temperature target shooting test device, comprising:

[0042] Mounting frame 7;

[0043] A mounting platform 9 is arranged on the mounting frame 7. A clamp mechanism with an adjustable angle is arranged on the mounting platform 9. The clamp mechanism is used to mount a casing test piece 8.

[0044] The heating mechanism is slidably arranged on the mounting frame 7 through the 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;

[0045] The impact mechanism is used to launch the blade test piece 14 toward the casing test piece 8.

[0046] By arranging an angle-adjustable fixture mechanism on the mounting table 9, it can be applied to a full-ring or split-ring casing test piece 8, thereby improving the authenticity of the test.

[0047] By arranging a slidable heating mechanism on the mounting frame 7 and driving the heating mechanism to slide through the lifting mechanism, the heating mechanism can cover the casing test piece 8 to heat the casing test piece 8, and separate from the casing test piece 8 after the casing test piece 8 reaches a preset temperature, thereby ensuring a high temperature environment for the casing test piece 8, 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.

[0048] In one embodiment of the present invention, the lifting mechanism comprises:

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

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

[0051] The connecting steel cable 2 is wound up by a winch, thereby driving the heating mechanism to rise and fall and slide along the mounting frame 7 .

[0052] The winch can be controlled by remote control, which is easy to operate and can ensure the safety of the operator.

[0053] In one embodiment of the present invention, a plurality of slide rails 10 are provided on the mounting frame 7, and rollers 3 are slidably fitted on the slide rails 10, and the rollers 3 are connected to the heating mechanism.

[0054] The slide rail 10 and the roller 3 can guide the heating mechanism and improve the sliding stability of the heating mechanism.

[0055] In one embodiment of the present invention, the heating mechanism comprises:

[0056] A heating box 6, open at one end toward the casing test piece 8;

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

[0058] Furthermore, the temperature of the heat source can be freely adjusted, and high-temperature heating and heat preservation up to 550° can be achieved;

[0059] In one embodiment of the present invention, a first observation window 4 and a second observation window 5 are provided on the heating box 6 .

[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 invention, the impact mechanism comprises:

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

[0063] A launching chamber 12 connected to the second power source 11;

[0064] A gun barrel 15 is connected to the launch chamber 12, and a buttstock 13 is slidably arranged inside the gun barrel 15, and the buttstock 13 is used to connect to the blade test piece 14;

[0065] The separator 16 is arranged at the outlet end of the gun barrel 15 .

[0066] The blade test piece 14 is installed and fixed in the sabot 13 to ensure that the sabot 13 does not move in the barrel 15. The impact speed of the blade test piece 14 is adjusted by adjusting the internal pressure of the barrel 15. After the sabot 13 is fired, the sabot 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] Furthermore, the temperature box body of the heating box 6 and the mounting platform 9 are made of heat-insulating materials, and the part of the mounting platform 9 surface that contacts and fits with the lower surface of the heating box 6 is wrapped with asbestos rope to ensure the sealing and heat preservation effect, thereby ensuring that the temperature of the test piece is uniform and stable when the target shooting test simulates a high-temperature test.

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

[0069] The impact velocity of the blade test piece 14 is tested by a laser velocity measuring device 17 to complete an inclusive impact test at a specific speed and temperature.

[0070] The present invention also provides a separate high-temperature target shooting test method, comprising the following steps:

[0071] Install the receiver test piece 8 onto the fixture mechanism and adjust the angle of the receiver test piece 8, and adjust the distance between the impact mechanism and the receiver test piece 8;

[0072] The heating mechanism is driven by the lifting mechanism to cover the casing test piece 8 for heating, and the fixing pin is inserted to wind the asbestos rope around the lower surface of the heating box 6;

[0073] When the casing test piece 8 reaches the preset temperature, the heating mechanism is driven to separate from the casing test piece 8 by the lifting mechanism, the fixing pin is removed, the heating box 6 is hoisted to the fixed position by the winch, and the protection pin is inserted;

[0074] The blade test piece 14 is launched onto the casing 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 casing test piece 8 warm by means of a movable heating box 6, so that it reaches and maintains the temperature of the high-temperature environment in which a real aircraft engine operates for a period of time, thereby effectively simulating the impact performance of the turbine casing at high temperatures, ensuring the similarity between the target shooting test and the containment process of a real aircraft engine, and providing a feasible device for studying the impact performance of the casing at high temperatures.

[0076] The gas tank pressure, the installation angle of the casing test piece 8 and the temperature of the heating box 6 of the present invention are all adjustable, so that the engine casing impact resistance test at different impact speeds, different impact angles and different sample ambient temperatures can be realized.

[0077] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0078] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A separate high-temperature target shooting test device, characterized in that: include: Mounting frame (7); A mounting platform (9) is arranged on the mounting frame (7); a fixture mechanism with an adjustable angle is arranged on the mounting platform (9); the fixture mechanism is used to mount 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 to launch the blade test piece (14) towards 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 arranged 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 arranged on the mounting frame (7), rollers (3) are slidably matched 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) opened 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. A 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) connected to the launch chamber (12), a cartridge case (13) being slidably disposed inside the gun barrel (15), and the cartridge case (13) being 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. A 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. A separate high-temperature target shooting test device according to claim 2, characterized in that: The first power source (1) is a winch.

9. A 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 a 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) to heat it; 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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