Adjustable thermal modal test heating system

Abstract

The present invention provides an adjustable thermal modal test heating system, including a reflector, a lamp holder, a slot aluminum, a distance ring and an insulating ring; the top of the reflector is fastened to the slot aluminum; a rectangular hole is provided in the middle of the reflector, and the rectangular hole is used for connecting a non-contact modal test device; a first slot is provided on both the upper and lower sides of the rectangular hole, and one or more lamp holders are provided in the first slot; the lamp holder includes a conductive wiring rod and a mounting end for mounting the lamp, and the wiring rod is plugged into the first slot; the distance ring and the insulating ring are both sleeved on the wiring rod; the first slot does not allow both the distance ring and the insulating ring to pass through. The present invention helps to adjust the left and right positions of the lamp holder through the first plug-in cooperation between the lamp holder and the reflector, and helps to adjust the distance between the lamp and the test piece by setting the distance ring, thereby helping to ensure the measurement space of the non-contact measurement and the validity of the test results.

Description

Technical Field

[0001] The invention relates to the field of structural thermal testing, and in particular to an adjustable thermal modal testing heating system. Background Art

[0002] Under high temperature conditions, the strength limit and elastic modulus of the missile rudder structural material will change significantly, causing the rudder system modal parameters to shift significantly compared to normal temperature environments. In order to ensure the normal operation of the missile, it is necessary to conduct thermal modal tests on the missile rudder and wing surfaces to test the changes in their modal performance parameters. The test requires the use of non-contact measurement methods, and the temperature of the heated surface of the test piece is applied evenly.

[0003] In the previous heating system design, the position of the test product was fixed and the heater could not be adjusted. In order to ensure uniform heating of the test piece during the thermal modal test and to adjust the position of the heater, and to meet the spacing of the non-contact modal test equipment, the test product needs to be adjusted several times during the thermal modal test.

[0004] The existing Chinese patent with publication number CN103630313B discloses a thermal modal test excitation system for a heated structure of an aircraft and a test method thereof. One end of a high-temperature resistant excitation device of the system is suspended on a load-bearing beam by a metal braided rope, and the other end of the high-temperature resistant excitation device is connected to one side of the bottom of the test piece. The top of the test piece is suspended on the load-bearing beam by a suspension device, and quartz lamp heaters are provided on both sides of the test piece.

[0005] The inventor believes that the prior art lacks flexibility in adjusting the heating system, and it is necessary to provide an adjustable heating system. Summary of the invention

[0006] In view of the defects in the prior art, an object of the present invention is to provide an adjustable thermal modal test heating system.

[0007] According to the present invention, an adjustable thermal modal test heating system includes: a reflector, a lamp holder, a slot aluminum, a distance ring and an insulating ring; the top of the reflector is fastened to the slot aluminum; a rectangular hole is provided in the middle of the reflector, and the rectangular hole is used for connecting non-contact modal test equipment; first slots are provided on both the upper and lower sides of the rectangular hole, and one or more lamp holders are provided in the first slot; the lamp holder includes a conductive wiring rod and a mounting end for mounting the lamp, and the wiring rod is plugged into the first slot; the distance ring and the insulating ring are both sleeved on the wiring rod; one or more distance rings are located on the side of the first slot close to the mounting end; one end of the insulating ring is embedded in the first slot, and the other end is located on the side of the first slot away from the mounting end; the first slot does not allow both the distance ring and the insulating ring to pass through.

[0008] Preferably, a second groove is provided on the top of the reflecting plate, and a third groove corresponding to the second groove is provided on the groove aluminum; the reflecting plate and the groove aluminum are both adjusted left and right through the cooperation of the second groove and the third groove.

[0009] Preferably, the angle of the slot aluminum is adjusted by providing a pad on one side.

[0010] Preferably, through holes are provided at both ends of the top of the aluminum groove.

[0011] Preferably, the connection bar is connected to a power amplifier.

[0012] Preferably, threaded holes are evenly arranged on the mounting end.

[0013] Preferably, the material of the reflective plate includes aluminum alloy 2A12.

[0014] Preferably, the lamp tube support material includes copper H96.

[0015] Preferably, the distance ring comprises a ceramic distance ring.

[0016] Preferably, the insulating ring comprises a ceramic insulating ring.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention helps to adjust the left and right position of the lamp holder through the first plug-in cooperation with the reflector, and helps to adjust the distance between the lamp and the test piece by setting a distance ring, thereby helping to ensure the measurement space of non-contact measurement and the validity of the test results.

[0019] 2. The present invention adjusts the angle by arranging a pad on one side of the aluminum groove, which helps the lamp tube to be parallel to the heating surface of the test piece, helps the test piece to be heated evenly, thereby helping to reduce the occurrence of under-testing and over-testing caused by local heating of the test piece, and helps to ensure the smooth completion of the test.

[0020] 3. The present invention helps to improve the convenience of disassembly and assembly and the scope of application through the cooperation of the reflector plate and the groove aluminum, and through the cooperation of the reflector plate and the lamp tube bracket, thereby helping to save costs and improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0022] Figure 1 The present invention mainly embodies the overall structural schematic diagram of the adjustable thermal modal test heating system;

[0023] Figure 2 The present invention mainly embodies the overall structural schematic diagram of the adjustable thermal modal test heating system;

[0024] Figure 3 This is a schematic diagram of the overall structure of the reflector mainly embodied in the present invention;

[0025] Figure 4 This is a schematic diagram of the overall structure of the lamp bracket mainly embodied in the present invention;

[0026] Figure 5 This is a schematic diagram of the overall structure of the slot aluminum that is mainly embodied in the present invention;

[0027] Figure 6 This is a schematic diagram of the overall structure of the distance ring mainly embodied in the present invention;

[0028] Figure 7 The figure is a schematic diagram of the overall structure of the insulating ring mainly embodied in the present invention.

[0029] As shown in the figure:

[0030] Reflector 1 Rectangular hole 11 First slot 12

[0031] Second slot 13 lamp holder 2 connection rod 21

[0032] Mounting end 22 Slot aluminum 3 Third slot 31

[0033] Through hole 32 Distance ring 4 Insulation ring 5 DETAILED DESCRIPTION

[0034] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0035] like Figure 1-7 As shown, an adjustable thermal modal test heating system provided according to the present invention includes: a reflector 1, a lamp holder 2, a groove aluminum 3, a distance ring 4 and an insulating ring 5; the top of the reflector 1 is fastened to the groove aluminum 3; a rectangular hole 11 is provided in the middle of the reflector 1, and the rectangular hole 11 is used for connecting non-contact modal test equipment; first grooves 12 are provided on both the upper and lower sides of the rectangular hole 11, and one or more lamp holders 2 are provided in the first groove 12; the lamp holder 2 includes a conductive wiring rod 21 and a mounting end 22 for mounting the lamp, and the wiring rod 21 is plugged into the first groove 12; the distance ring 4 and the insulating ring 5 are both sleeved on the wiring rod 21; one or more distance rings 4 are located on the side of the first groove 12 close to the mounting end 22; one end of the insulating ring 5 is embedded in the first groove 12, and the other end is located on the side of the first groove 12 away from the mounting end 22; the first groove 12 does not allow both the distance ring 4 and the insulating ring 5 to pass.

[0036] This application is suitable for simulating the temperature environment that component-level test pieces such as tactical model rudders and wing surfaces experience during flight. According to the size and temperature distribution requirements of the test piece, the reflector 1 and the lamp holder 2 are designed so that the lamp fits better with the rudder and wing surface. By adjusting the lamp holder 2, the measurement space for non-contact measurement can be guaranteed, the validity of the test results can be guaranteed, and the purpose of reducing labor costs, improving efficiency, and ensuring test safety can be achieved.

[0037] The top of the reflector 1 is provided with a second groove 13, and the groove aluminum 3 is provided with a third groove 31 corresponding to the second groove 13; the reflector 1 and the groove aluminum 3 are adjusted left and right through the cooperation of the second groove 13 and the third groove 31. Preferably, the second groove 13 and the third groove 31 each include two rectangular grooves, and the widths of the second groove 13 and the third groove 31 are the same, so that the position of the reflector 1 can be adjusted left and right according to the test requirements.

[0038] The slot aluminum 3 is a frame structure, and through holes 32 are provided at both ends of the top of the slot aluminum 3. The through holes 32 at both ends are used to fix the slot aluminum 3. The slot aluminum 3 is adjusted by setting a pad on one side. The angle of the slot aluminum 3 is adjusted according to the inclination angle of the test piece, so that the lamp tube fits better with the rudder surface and the wing surface. The adjustable angle and position ensure that the heater is always parallel to the test piece and ensures the measurement space for non-contact measurement. The angle of the slot aluminum 3 is adjusted so that the lamp tube is parallel to the heating surface of the test piece, and the heating is uniform, avoiding the phenomenon of under-assessment and over-assessment caused by local heating of the test piece, and ensuring the smooth completion of the test.

[0039] The lamp holder 2 includes a conductive connecting rod 21 and a mounting end 22 for mounting the lamp. The mounting end 22 is an arc structure and is evenly provided with threaded holes for connecting the quartz lamp. The connecting rod 21 is connected to a power amplifier to supply power to the quartz lamp.

[0040] One or more lamp holders 2 are arranged on the first slot 12, and the position of the lamp holder 2 can be adjusted left and right according to the test requirements to ensure the measurement space for non-contact measurement and the validity of the test results.

[0041] The distance ring 4 includes a ceramic distance ring. The cross-sectional size of the distance ring 4 exceeds the width of the first groove 12, so that one or more distance rings 4 are located on the side of the first groove 12 near the mounting end 22. The forward extension length of the lamp holder 2 can be determined by adjusting the number of distance rings 4 according to test requirements, thereby adjusting the distance between the lamp and the test piece.

[0042] The material of the reflector 1 includes aluminum alloy 2A12, and the material of the lamp holder 2 includes copper H96, so the lamp holder 2 and the reflector 1 need to be insulated by an insulating ring 5. The insulating ring 5 includes a ceramic insulating ring. The size of one end of the insulating ring 5 embedded in the first groove 12 matches the width of the first groove 12, and the size of one end of the first groove 12 located on the side away from the mounting end 22 exceeds the width of the first groove 12, effectively ensuring insulation.

[0043] This application uses the following data as an example to specifically explain the system and its installation process.

[0044] The middle of the reflector 1 is a rectangular hole 11 with a length of 450 mm and a width of 200 mm. A first groove 12 with a length of 420 mm and a width of 15 mm is provided 160 mm above and below the rectangular hole 11. The upper surface of the reflector 1 is provided with two second grooves 13 with a length of 95 mm and a width of 10 mm.

[0045] The lamp support 2 is an arc structure. The mounting end 22 is evenly distributed with M8 threaded holes for connecting the quartz lamp. The connecting rod 21 is a copper rod with a length of 200 mm and M10 full thread, which is connected to the power amplifier to supply power to the quartz lamp.

[0046] The slot aluminum 3 is a frame structure, with two third slots 31 of 100 mm in length and 10 mm in width on the upper part, and two through holes 32 of φ22 mm at each end.

[0047] The installation process of this application is as follows:

[0048] Step 1: Insulate the lamp bracket 2 from the reflector 1 through the insulating ring 5, fix the insulating ring 5 to the lamp bracket 2 through the M10 nut, and adjust the number of distance rings 4 to determine the forward extension length of the lamp bracket 2;

[0049] Step 2: Use M10 bolts to fix the second groove 13 on the top of the reflector 1 to the third groove 31 on the upper part of the aluminum slot 3, and adjust the position of the reflector 1;

[0050] Step 3: Fix the quartz lamp tube and the lamp tube bracket 2;

[0051] Step 4: Connect the channel aluminum 3 to the ground fixings with M22 bolts, and adjust the inclination angle of the channel aluminum 3.

[0052] This application is suitable for thermal modal testing of missile rudders and wing surfaces, and can meet the requirements of thermal environment loading below 1000°C for rudder and wing surface products. The angle and position can be adjusted so that the heater is always parallel to the test piece, and the measurement space for non-contact measurement is guaranteed. This application is easy to disassemble and assemble, convenient for test withdrawal, simple on-site, and easy to maintain, achieving the purpose of saving labor costs, improving efficiency, and ensuring test safety.

[0053] How it works

[0054] The top of the reflector 1 is fastened to the groove aluminum 3 by the cooperation of the second groove 13 and the third groove 31. The lamp holder 2 is inserted into the first groove 12 of the reflector 1. The position of the lamp holder 2 can be adjusted left and right according to the test requirements to ensure the measurement space of non-contact measurement and the validity of the test results. The connecting rod 21 on the lamp holder 2 is provided with a distance ring 4 and an insulating ring 5. The forward extension length of the lamp holder 2 can be determined by adjusting the number of distance rings 4 according to the test requirements, thereby adjusting the distance between the lamp and the test piece. The lamp holder 2 is insulated from the reflector 1 by the insulating ring 5. The mounting end 22 on the lamp holder 2 is installed with a quartz lamp for heating. The groove aluminum 3 adjusts the angle by setting a pad on one side so that the lamp is parallel to the heating surface of the specimen and is heated evenly.

[0055] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "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 application and simplifying the description, and do not indicate or imply that the referred device or element 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 application.

[0056] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. An adjustable thermal modal test heating system, characterized in that: include: Reflector plate (1), lamp tube bracket (2), slotted aluminum (3), distance ring (4) and insulating ring (5); The top of the reflective plate (1) is firmly connected to the aluminum groove (3); A rectangular hole (11) is provided in the middle of the reflection plate (1), and the rectangular hole (11) is used for connecting a non-contact modal testing device; The upper and lower sides of the rectangular hole (11) are both provided with a first groove (12), and one or more lamp tube brackets (2) are arranged in the first groove (12); The lamp tube support (2) comprises a conductive connection rod (21) and a mounting end (22) for mounting the lamp tube, and the connection rod (21) is plug-fitted into the first slot (12); The distance ring (4) and the insulating ring (5) are both sleeved on the wiring rod (21); One or more distance rings (4) are located on a side of the first groove (12) close to the mounting end (22); One end of the insulating ring (5) is embedded in the first groove (12), and the other end is located on a side of the first groove (12) away from the mounting end (22); The first groove (12) does not allow both the distance ring (4) and the insulating ring (5) to pass through; A second groove (13) is provided on the top of the reflection plate (1), and a third groove (31) corresponding to the second groove (13) is provided on the groove aluminum (3); The reflecting plate (1) and the slotted aluminum (3) are adjusted left and right by cooperating with each other through the second slot (13) and the third slot (31); The angle of the slot aluminum (3) is adjusted by arranging a pad on one side.

2. The adjustable thermal modal test heating system according to claim 1, characterized in that: Through holes (32) are provided at both ends of the top of the aluminum groove (3).

3. The adjustable thermal modal test heating system according to claim 1, characterized in that: The connection rod (21) is connected to a power amplifier.

4. The adjustable thermal modal test heating system according to claim 1, characterized in that: The mounting end (22) is evenly provided with threaded holes.

5. The adjustable thermal modal test heating system according to claim 1, characterized in that: The material of the reflective plate (1) includes aluminum alloy 2A12.

6. The adjustable thermal modal test heating system according to claim 1, characterized in that: The material of the lamp tube support (2) includes copper H96.

7. The adjustable thermal modal test heating system according to claim 1, characterized in that: The distance ring (4) comprises a ceramic distance ring.

8. The adjustable thermal modal test heating system according to claim 1, characterized in that: The insulating ring (5) comprises a ceramic insulating ring.

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