Thermal vibration simulation testing device for thermal barrier coating
By designing an adjustable-spacing platform structure, the problem of poor adaptability of the existing thermal vibration simulation test chamber stage was solved, achieving stable clamping and precise positioning of workpieces of different sizes, thus improving the accuracy of the test and the versatility of the stage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-04-14
AI Technical Summary
The existing thermal shock simulation test chamber's stage cannot adapt to samples of different sizes and types, resulting in poor versatility and compatibility, and increasing the cost and time of replacing the stage.
A thermal barrier coating thermal vibration simulation test device was designed. It adopts an adjustable first and second load plate, and achieves stable clamping and precise positioning of the workpiece through synchronously rotating screws and adjusting wheels, which can adapt to workpiece samples of different sizes and types.
It improves the versatility and compatibility of the stage, ensures the accuracy of test results, and reduces the cost and time of frequently replacing the stage due to changes in sample size.
Smart Images
Figure CN224122598U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermal vibration simulation equipment, specifically a thermal vibration simulation testing device for thermal barrier coatings. Background Technology
[0002] In practical applications, thermal barrier coatings, such as those used in hot-end components like aero engines and gas turbines, undergo frequent start-up and shutdown processes, leading to rapid temperature changes and thermal stress. Thermal vibration simulation test chambers can accurately simulate this rapid temperature cycling, subjecting the coating to repeated changes from high to low and back to high temperatures in a short period. This allows for a more accurate assessment of the coating's thermal stability and thermal shock resistance under actual operating conditions. In addition to thermal stress, thermal barrier coatings in engines and other equipment are also affected by mechanical vibration. Thermal vibration simulation test chambers can simultaneously apply vibration stress, simulating the vibration environment of the coating during actual operation, and detecting performance changes under thermal vibration coupling, such as the adhesion between the coating and the substrate, and crack propagation within the coating. Thermal vibration simulation test chambers typically refer to comprehensive thermal vibration test chambers, and their working principle mainly includes the following two aspects:
[0003] Temperature control principle
[0004] Similar to the temperature control principles of thermal shock test chambers and high and low temperature test chambers, thermal vibration comprehensive test chambers control the temperature inside the chamber through heating and cooling systems. The heating system typically uses electric heaters to raise the temperature of the sample by supplying electricity; the cooling system generally uses refrigerants or compressors to lower the temperature of the sample to the required low temperature.
[0005] Vibration control principle
[0006] The vibration system of the thermal vibration comprehensive test chamber mainly consists of a vibration table, a power amplifier, a signal generator, and a vibration controller. The signal generator produces specific vibration signals, and the vibration table converts electrical energy into mechanical energy, causing the sample placed on it to produce specified vibrations, simulating the vibration stress that the product is subjected to during transportation and use, such as mechanical vibration and seismic vibration.
[0007] The test chamber is equipped with a stage for thermal shock experiments. The stage has a fixed size and cannot adapt to samples of different sizes and types. The stage has poor versatility and compatibility, which directly increases the cost and time of frequently replacing the stage due to changes in sample size. Utility Model Content
[0008] The purpose of this invention is to provide a thermal shock simulation testing device for thermal barrier coatings to solve the defects mentioned in the background art.
[0009] To achieve the above objectives, a thermal barrier coating thermal vibration simulation testing device is provided, comprising a thermal vibration simulation testing chamber. The chamber has a test room inside, and a thermal vibration table is installed at the bottom of the test room. The surface of the thermal vibration table is covered with a loading platform. The loading platform includes a support platform installed inside the test room, and fixed seats are fixedly installed on both sides of the surface of the support platform. Screws and guide rods are respectively inserted on the fixed seats. A second loading plate is movably installed on the left side of the surface of the support platform, and a first loading plate is movably installed on the right side of the surface of the support platform.
[0010] Preferably, the surface of the thermal vibration table is provided with positioning rails, and the bottom of the support table is fixedly installed with positioning strips, and the positioning strips and positioning rails are evenly arranged in three sets.
[0011] Preferably, the three sets of positioning strips are respectively inserted into the interior of the three sets of positioning tracks, and the cross-sections of the positioning strips and positioning tracks are all dovetail-shaped. At the same time, the stage is positioned and installed inside the test chamber by the positioning strips and positioning tracks.
[0012] Preferably, the first and second carrier plates are synchronously moving in opposite directions, and a drive seat is fixedly provided at the bottom of both the first and second carrier plates.
[0013] Preferably, guide holes are provided on both sides of the drive seat, and a screw hole is provided in the middle of the drive seat. At the same time, screw rods are screwed into the drive seats at the bottom of the first and second load plates, and the two sets of screw rods are coaxially arranged.
[0014] Preferably, both the first and second carrier plates are L-shaped, and the first and second carrier plates are driven by two sets of synchronously rotating screws, with adjusting wheels installed at the ends of the screws.
[0015] Preferably, the support platform is rectangular, and four sets of openings are evenly distributed on the surface of the support platform, and the openings are strip-shaped.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. This utility model uses the first and second carrier plates to passively clamp the workpiece on their surfaces, ensuring the stability of the workpiece coated with a thermal barrier coating during thermal vibration simulation without loosening. At the same time, the positioning of the first and second carrier plates allows the workpiece to be precisely placed in a specific position within the thermal vibration simulation test chamber, ensuring the accuracy of temperature and vibration application and solving the problem of test result deviation caused by inaccurate sample placement.
[0018] 2. By adjusting the distance between the first and second carrier plates, this utility model can clamp workpieces of different sizes on the surfaces of the first and second carrier plates; thus adapting to workpiece samples of different sizes and types, improving the versatility and compatibility of the stage, and reducing the cost and time of frequently replacing the stage due to changes in sample size. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a front view schematic diagram of the structure of this utility model;
[0021] Figure 2 for Figure 1 A bottom view;
[0022] Figure 3 for Figure 1 Top view;
[0023] Figure 4 This is a schematic diagram of the stage;
[0024] Figure 5 for Figure 4 A sectional view.
[0025] The annotations in the attached figures are explained as follows:
[0026] 1. Thermal vibration simulation test chamber; 2. Test chamber; 3. Thermal vibration table; 4. Positioning rail; 5. Platform; 51. Support platform; 52. Positioning strip; 53. Opening; 54. Fixed seat; 55. Adjusting wheel; 56. Screw; 57. Guide rod; 58. First platform; 59. Second platform; 59. Drive seat. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0031] Please see Figure 1-5 This utility model provides a thermal shock simulation test device for thermal barrier coatings, including a thermal shock simulation test chamber 1. The thermal shock simulation test chamber 1 has a test chamber 2 inside, and a thermal shock table 3 is installed at the bottom of the test chamber 2. The surface of the thermal shock table 3 is covered with a platform 5. The platform 5 includes a support platform 51 installed inside the test chamber 2. Fixing seats 54 are fixedly installed on both sides of the surface of the support platform 51. Screws 56 and guide rods 57 are respectively inserted on the fixing seats 54. A second platform 59 is movably installed on the left side of the surface of the support platform 51, and a first platform 58 is movably installed on the right side of the surface of the support platform 51.
[0032] Working principle: When using the equipment, the operator places a regular workpiece coated with a thermal barrier coating between the first plate 58 and the second plate 59 on the stage 5. The operator then rotates the adjusting wheel 55, causing the two sets of adjusting wheels 55, which are fixedly connected to the adjusting wheel 55, to rotate synchronously. Under the action of the two sets of drive seats 591, the first plate 58 and the second plate 59 move synchronously towards each other. By reducing the distance between the first plate 58 and the second plate 59, the workpiece on the surface of the first plate 58 and the second plate 59 can be clamped, ensuring the stability of the workpiece coated with the thermal barrier coating during thermal vibration simulation and preventing loosening. Simultaneously, the positioning of the first plate 58 and the second plate 59 allows the workpiece to be precisely placed in a specific position within the thermal vibration simulation test chamber 1, ensuring the accuracy of temperature and vibration application and solving the problem of test result deviations caused by inaccurate sample placement.
[0033] Meanwhile, by adjusting the distance between the first carrier plate 58 and the second carrier plate 59, workpieces of different sizes on the surfaces of the first carrier plate 58 and the second carrier plate 59 can be clamped; this adapts to workpiece samples of different sizes and types, improves the versatility and compatibility of the stage 5, and reduces the cost and time of frequently changing the stage due to changes in sample size.
[0034] As a preferred embodiment, the surface of the thermal vibration table 3 is provided with positioning rails 4, and the bottom of the support table 51 is fixedly installed with positioning strips 52. At the same time, the positioning strips 52 and positioning rails 4 are evenly arranged in three sets.
[0035] The three sets of positioning strips 52 are respectively inserted into the three sets of positioning rails 4, and the cross-sections of the positioning strips 52 and the positioning rails 4 are both set in a dovetail shape. At the same time, the platform 5 is positioned and installed inside the test chamber 2 through the positioning strips 52 and the positioning rails 4.
[0036] In a preferred embodiment, the first carrier plate 58 and the second carrier plate 59 are synchronously moving towards each other, and a drive seat 591 is fixedly provided at the bottom of both the first carrier plate 58 and the second carrier plate 59.
[0037] Guide holes are provided on both sides of the drive seat 591, and a screw hole is provided in the middle of the drive seat 591. At the same time, screw rods 56 are screwed into the drive seat 591 at the bottom of the first carrier plate 58 and the second carrier plate 59, and the two sets of screw rods 56 are coaxially arranged.
[0038] In a preferred embodiment, both the first loading plate 58 and the second loading plate 59 are arranged in an "L" shape, and the first loading plate 58 and the second loading plate 59 are driven by two sets of synchronously rotating screws 56, and an adjusting wheel 55 is installed at the end of the screw 56.
[0039] The support platform 51 is rectangular, and four sets of openings 53 are evenly distributed on the surface of the support platform 51. The openings 53 are strip-shaped.
[0040] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A thermal barrier coating thermal vibration simulation testing device, comprising a thermal vibration simulation testing chamber (1), characterized in that: The thermal vibration simulation test chamber (1) has a test chamber (2) inside, and a thermal vibration table (3) is installed at the bottom of the test chamber (2). The surface of the thermal vibration table (3) is covered with a platform (5). The platform (5) includes a support platform (51) installed inside the test chamber (2). Fixing seats (54) are fixedly installed on both sides of the surface of the support platform (51). Screws (56) and guide rods (57) are inserted into the fixing seats (54). A second platform (59) is movably installed on the left side of the surface of the support platform (51), and a first platform (58) is movably installed on the right side of the surface of the support platform (51).
2. The thermal barrier coating thermal vibration simulation test device as described in claim 1, characterized in that: The surface of the thermal vibration table (3) is provided with a positioning track (4), and a positioning strip (52) is fixedly installed at the bottom of the support table (51). At the same time, the positioning strip (52) and the positioning track (4) are evenly arranged in three sets.
3. The thermal barrier coating thermal vibration simulation test device as described in claim 2, characterized in that: Three sets of positioning strips (52) are inserted into the interior of three sets of positioning rails (4), and the cross-sections of the positioning strips (52) and the positioning rails (4) are both set in a dovetail shape. At the same time, the platform (5) is positioned and installed inside the test chamber (2) through the positioning strips (52) and the positioning rails (4).
4. The thermal barrier coating thermal vibration simulation test device as described in claim 1, characterized in that: The first carrier plate (58) and the second carrier plate (59) are synchronously moving towards each other, and the bottom of the first carrier plate (58) and the second carrier plate (59) are both fixedly provided with a drive seat (591).
5. The thermal barrier coating thermal vibration simulation test device as described in claim 4, characterized in that: Guide holes are provided on both sides of the drive seat (591), and a screw hole is provided in the middle of the drive seat (591). At the same time, screw rods (56) are screwed into the drive seat (591) at the bottom of the first carrier plate (58) and the second carrier plate (59), and the two sets of screw rods (56) are coaxially arranged.
6. The thermal barrier coating thermal vibration simulation test device as described in claim 1, characterized in that: The first loading plate (58) and the second loading plate (59) are both "L" shaped, and the first loading plate (58) and the second loading plate (59) are driven by two sets of synchronously rotating screws (56), and an adjusting wheel (55) is installed at the end of the screw (56).
7. The thermal barrier coating thermal vibration simulation test device as described in claim 1, characterized in that: The support platform (51) is rectangular, and four sets of openings (53) are evenly provided on the surface of the support platform (51), and the openings (53) are strip-shaped.