Vibration device for arc-shaped test piece performance test
By using a three-point fixing method, the arc-shaped test piece is stably clamped using the first clamping unit, the second clamping unit, and the third clamping unit, which solves the problem of low clamp fit in existing devices and achieves stability and accuracy in vibration performance testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN ENVIRONMENTAL TESTING TECH CO LTD
- Filing Date
- 2025-09-08
- Publication Date
- 2026-06-19
AI Technical Summary
When fixing curved test pieces, the existing vibration devices have a low degree of fit between the clamp and the curved test piece, resulting in poor clamping stability and affecting the accuracy of vibration performance test results.
A three-point fixing method is adopted, in which the first and second clamping units clamp the two sides of the arc-shaped test piece respectively, and the third clamping unit clamps the top of it. The stability principle of triangle is used to achieve stable fixing of the arc-shaped test piece.
This improved the stability and accuracy of the test results of the curved test piece during vibration performance testing, ensuring its normal use in the future.
Smart Images
Figure CN224382770U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vibration testing technology, and in particular to a vibration device for testing the performance of an arc-shaped test piece. Background Technology
[0002] Curved test specimens refer to test samples with a specific radius of curvature or arc-shaped geometry. They are widely used in fields such as hydraulic engineering, automotive industry, and pipeline systems. Specifically, examples include high-head curved gates commonly used in hydraulic engineering, thin-walled curved parts used in the automotive industry, and large-radius PPR elbow molds in pipeline systems. To ensure the stability of the performance of curved test specimens, their structures are typically subjected to mechanical property tests under bending, vibration, and dynamic load conditions before leaving the factory to evaluate their overall performance. The vibration performance of curved test specimens is usually measured using a vibration device.
[0003] However, existing vibration devices typically use clamps to fix the test specimen to the vibration table during vibration testing. These clamps are usually curved or plate-shaped, primarily used for fixing commonly used test specimens such as cylindrical or square shapes. For curved test specimens, the existing clamps have a low degree of contact between the clamp and the outer surface of the curved test specimen, resulting in low stability in holding the specimen. This leads to inaccurate vibration performance test results for curved test specimens, affecting their subsequent normal use. Therefore, this application proposes a vibration device for testing the performance of curved test specimens. Utility Model Content
[0004] This application provides a vibration device for testing the performance of arc-shaped test specimens, in order to solve the technical problems described in the background art above.
[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution:
[0006] This application provides a vibration device for testing the performance of an arc-shaped test piece, comprising:
[0007] The vibration test bench body is provided with a test platform for testing the vibration performance of an arc-shaped test piece placed on the test platform.
[0008] The mounting platform is installed on the test platform, and a first clamping unit and a second clamping unit are provided on its upper surface at a first preset distance. The length of the arc-shaped test piece is greater than the first preset distance and it is positioned between the first clamping unit and the second clamping unit to clamp and fix both sides of the arc-shaped test piece through the first clamping unit and the second clamping unit.
[0009] The third clamping unit is disposed on the top surface of the first clamping unit and the second clamping unit for clamping and fixing the top of the arc-shaped test piece.
[0010] Optionally, the first clamping unit and the second clamping unit have the same structure;
[0011] The first clamping unit includes a base plate and two upright plates;
[0012] The base plate is set on the mounting platform, and the two upright plates are set on the upper surface of the base plate at a second preset distance, the second preset distance being adapted to the thickness of the arc-shaped test piece.
[0013] Optionally, the third clamping unit includes two clamping plates and a connecting plate;
[0014] The two clamping plates are parallel to each other and are both connected to the top surfaces of the first clamping unit and the second clamping unit. The connecting plate is perpendicularly connected to the two clamping plates and is located in the middle of the two clamping plates.
[0015] Optionally, the connecting plate is integrally formed with the two clamping plates.
[0016] Optionally, each of the clamping plates has a first threaded through hole near both ends, and each of the vertical plates has a first threaded hole of a preset depth on its top surface;
[0017] Each clamping plate is fixedly connected to the top surface of the upright plate by means of a first fastening bolt passing through the first threaded through hole and the first threaded hole at both ends.
[0018] Optionally, the two ends of the connecting plate are respectively provided with second threaded through holes, and the second threaded through holes on the connecting plate are detachably connected to the second threaded through holes on another connecting plate located above or below it by a second fastening bolt.
[0019] Optionally, the mounting platform has a third threaded through hole, and the test platform has a second threaded hole. The depth of the second threaded hole is less than the thickness of the test platform. The mounting platform is detachably connected to the test platform by a third fastening bolt that passes through the third threaded through hole and extends into the second threaded hole.
[0020] Optionally, there are multiple first clamping units and multiple second clamping units, and multiple third clamping units, with each of the multiple first clamping units and multiple second clamping units corresponding to one of the multiple third clamping units.
[0021] The vibration device for testing the performance of curved test pieces provided in this application involves mounting a platform on the test platform of the vibration test bench body. A first clamping unit and a second clamping unit, respectively positioned on the mounting platform, clamp and fix the two sides of the curved test piece. After the curved test piece is fixed by the first and second clamping units, a third clamping unit is positioned on the top surface of the first and second clamping units to clamp and fix the top of the curved test piece. In other words, this application uses the first, second, and third clamping units to simultaneously fix the two sides and the top of the curved test piece at three points. The three fixed points of the curved test piece form a triangle. This application utilizes the principle of triangle stability to achieve stable fixing of the curved test piece on the mounting platform, thereby improving the stability of the vibration test platform during vibration performance testing of the curved test piece and the accuracy of the vibration performance test results, thus ensuring the normal subsequent use of the curved test piece. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the structure of a vibration device for testing the performance of an arc-shaped test piece according to an embodiment of this application;
[0024] Figure 2 A schematic diagram of a structure provided on an installation platform according to an embodiment of this application, wherein a first clamping unit, a second clamping unit and a third clamping unit are provided;
[0025] Figure 3 A schematic diagram of a test platform with a second threaded hole provided in an embodiment of this application.
[0026] In the diagram: 100, Vibration test bench body; 101, Test platform; 1011, Second threaded hole; 200, Arc-shaped test piece; 300, Mounting platform; 301, Third threaded through hole; 400, First clamping unit; 401, Base plate; 402, Vertical plate; 4021, First threaded hole; 500, Second clamping unit; 600, Third clamping unit; 601, Clamping plate; 6011, First threaded through hole; 602, Connecting plate; 6021, Second threaded through hole; 700, First fastening bolt; 800, Second fastening bolt; 900, Third fastening bolt. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.
[0028] refer to Figures 1 to 3 This application provides a vibration device for testing the performance of an arc-shaped test piece, comprising:
[0029] The vibration test bench body 100 has a test platform 101 mounted on it for testing the vibration performance of an arc-shaped test piece 200 mounted on the test platform 101. The vibration test bench body 100 is a vibration testing machine, which provides the vibration environment experienced by the product during manufacturing, transportation, and use. This environment is used to assess the product's ability to withstand vibration, detect early failures, simulate actual working conditions, and conduct structural strength tests. This product is widely used in industries such as defense, aviation, aerospace, communications, electronics, electrical appliances, and automotive manufacturing. Specifically, the purpose of vibration testing is to simulate a series of controllable vibrations in an experiment to test whether the product can withstand transportation or vibration environmental factors throughout its life cycle, and to determine the product's design and functional requirements. In other words, the vibration test bench body 100 in this application is prior art and not an innovation of this application; therefore, it will not be described in detail here.
[0030] The mounting platform 300 is mounted on the test platform 101, and a first clamping unit 400 and a second clamping unit 500 are provided on its upper surface at a first preset distance. The arc-shaped test piece 200 is longer than the first preset distance and is positioned between the first clamping unit 400 and the second clamping unit 500 to clamp and fix both sides of the arc-shaped test piece 200 through the first clamping unit 400 and the second clamping unit 500. In particular, by clamping and fixing both sides of the arc-shaped test piece 200 along its length direction through the first clamping unit 400 and the second clamping unit 500, the stability of the bottom of the arc-shaped test piece 200 being clamped and fixed is improved.
[0031] The third clamping unit 600 is disposed on the top surface of the first clamping unit 400 and the second clamping unit 500 for clamping and fixing the top of the arc-shaped test piece 200. While the first clamping unit 400 and the second clamping unit 500 fix the two sides of the arc-shaped test piece 200 along its length, the third clamping unit 600 further fixes the top of the arc-shaped test piece 200. This achieves three-point fixation of the arc-shaped test piece 200 by the first clamping unit 400, the second clamping unit 500, and the third clamping unit 600 simultaneously, covering both sides and the top. The three fixed points of the arc-shaped test piece 200 form a triangle; that is, this application utilizes the principle of the stability of a triangle to ensure that the arc-shaped test piece 200 can be stably fixed on the mounting platform 300.
[0032] The vibration device for testing the performance of an arc-shaped test piece provided in this application involves mounting a mounting platform 300 on the test platform 101 of the vibration test bench body 100. A first clamping unit 400 and a second clamping unit 500, respectively mounted on the mounting platform 300, clamp and fix the arc-shaped test piece 200 to both sides. After the arc-shaped test piece 200 is fixed by the first clamping unit 400 and the second clamping unit 500, a third clamping unit 600 is positioned on the top surface of the first clamping unit 400 and the second clamping unit 500 to clamp and fix the top of the arc-shaped test piece 200. This application describes a three-point fixation method using a first clamping unit 400, a second clamping unit 500, and a third clamping unit 600, which simultaneously fixes the arc-shaped test piece 200 at both sides and the top. The three fixed points of the arc-shaped test piece 200 form a triangle. This application utilizes the principle of stability of a triangle to achieve stable fixation of the arc-shaped test piece 200 on the mounting platform 300. This improves the stability of the vibration testing platform body 100 during the vibration performance testing of the arc-shaped test piece 200 and the accuracy of the vibration performance test results, thereby ensuring that the arc-shaped test piece 200 can be used normally in the future.
[0033] In some embodiments, reference Figure 1 and Figure 2 The first clamping unit 400 and the second clamping unit 500 in this application have the same structure; wherein, the first clamping unit 400 and the second clamping unit 500 are used to clamp and fix the two sides of the arc-shaped test piece 200 in the length direction.
[0034] Specifically, the first clamping unit 400 includes a base plate 401 and two upright plates 402; wherein, the base plate 401 is disposed on the mounting platform 300, and the two upright plates 402 are disposed on the upper surface of the base plate 401 at a second preset distance, the second preset distance being adapted to the thickness of the arc-shaped test piece 200.
[0035] In the above embodiment, the base plate 401 is fixedly connected to the mounting platform 300, and the upright plate 402 is fixedly connected to the upper surface of the base plate 401. The two sides of the arc-shaped test piece 200 in the length direction are respectively arranged between the two upright plates 402 of the first clamping unit 400 and the two upright plates 402 of the second clamping unit 500. Since the second preset distance between the two upright plates 402 in the first clamping unit 400 and the second preset distance between the two upright plates 402 in the second clamping unit 500 are both adapted to the thickness of the arc-shaped test piece 200, during the process of fixing the arc-shaped test piece 200, the bottom surface and the two side walls in the thickness direction of the arc-shaped test piece 200 abut against the upper surface of the base plate 401 and the side walls of the two upright plates 402 that are close to each other, thereby realizing the clamping and fixing of the arc-shaped test piece 200 by the first clamping unit 400 and the second clamping unit 500.
[0036] In some embodiments, reference Figure 1 and Figure 2 The third clamping unit 600 in this application includes two clamping plates 601 and a connecting plate 602. Specifically, the two clamping plates 601 are parallel to each other and are both connected to the top surface of the first clamping unit 400 and the top surface of the second clamping unit 500. The connecting plate 602 is perpendicularly connected to the two clamping plates 601 and is located in the middle of the two clamping plates 601.
[0037] In the above embodiment, the fixed connection between the two clamping plates 601 and the connecting plate 602 makes the third clamping unit 600 more stable in the process of clamping and fixing the arc-shaped test piece 200. After the arc-shaped test piece 200 is fixed on both sides of its length direction by the first clamping unit 400 and the second clamping unit 500, the top of the arc-shaped test piece 200 is fixed by the third clamping unit 600. Specifically, the lower surfaces of the two ends of each clamping plate 601 along its own length are fixedly connected to the top surfaces of the vertical plates 402 in the first clamping unit 400 and the vertical plates 402 in the second clamping unit 500, respectively, while the lower surface of the connecting plate 602 abuts against the top of the arc-shaped test piece 200. This achieves the purpose of fixing the top of the arc-shaped test piece 200 by the third clamping unit 600, thereby improving the stability of the arc-shaped test piece 200 being clamped and fixed.
[0038] In some embodiments, the connecting plate 602 in this application is integrally formed with the two clamping plates 601.
[0039] In the above embodiments, since the connecting plate 602 and the two clamping plates 601 are integrally formed, the connection stability between the connecting plate 602 and the two clamping plates 601 is higher, thereby improving the overall stability of the third clamping unit 600 and the stability of the arc-shaped test piece 200 being clamped and fixed by the third clamping unit 600.
[0040] In some embodiments, reference Figure 1 and Figure 2 In this application, each clamping plate 601 is provided with a first threaded through hole 6011 near both ends, and each upright plate 402 is provided with a first threaded hole 4021 of a preset depth on its top surface; wherein, the first threaded through hole 6011 and the first threaded hole 4021 correspond one-to-one, and improve the stability of the connection between the clamping plate 601 and the upright plate 402.
[0041] Each clamping plate 601 is fixedly connected to the top surface of the upright plate 402 by first fastening bolts 700 passing through first threaded through holes 6011 and 4021.
[0042] In the above embodiment, during the process of fixing the top end of the arc-shaped test piece 200 by the third clamping unit 600, the height of the arc-shaped test piece 200 matches the sum of the thickness of the base plate 401 and the height of the upright plate 402. Specifically, the third clamping unit 600 is placed on top of the arc-shaped test piece 200 such that at least two first threaded through holes 6011 on the clamping plate 601 of the third clamping unit 600 correspond one-to-one with at least two first threaded holes 4021 on the top surface of the upright plate 402. Then, the first fastening bolt 700 passes through the first threaded through holes 6011 and the first threaded holes 4021 to fix the clamping plate 601 and the upright plate 402 together. At this time, the lower surface of the connecting plate 602 abuts against the top end of the arc-shaped test piece 200, thereby realizing the clamping and fixing of the top end of the arc-shaped test piece 200 by the third clamping unit 600. In addition, the above-mentioned method of installing the clamping plate 601 and the upright plate 402 by fastening bolts improves the convenience of installation and disassembly of both.
[0043] In some embodiments, reference Figure 1 and Figure 2 In this application, the two ends of the connecting plate 602 are respectively provided with second threaded through holes 6021. The second threaded through holes 6021 on the connecting plate 602 are detachably connected to the second threaded through holes 6021 on another connecting plate 602 located above or below it by a second fastening bolt 800.
[0044] In the above embodiments, since the mounting platform 300 has a certain size, and in order to improve the testing efficiency of vibration testing, multiple arc-shaped test pieces 200 are usually set on the mounting platform 300, and vibration tests are performed on multiple arc-shaped test pieces 200 simultaneously. The second fastening bolt 800 passes through the second threaded through hole 6021 on one of the connecting plates 602 and the second threaded through hole 6021 on the connecting plate 602 corresponding to another adjacent arc-shaped test piece 200 located above or below it, thereby fixing the connecting plates 602 corresponding to the two adjacent arc-shaped test pieces 200 together (see details). Figure 1 and Figure 2 This improves the stability of fixing the multiple arc-shaped test pieces 200 on the mounting platform 300, thereby ensuring the accuracy of the vibration performance test results of the arc-shaped test pieces 200. Furthermore, the method of installing two adjacent connecting plates 602 using fastening bolts improves the ease of installation and disassembly.
[0045] In some embodiments, reference Figure 1 and Figure 2In this application, the mounting platform 300 has a third threaded through hole 301, and the testing platform 101 has a second threaded hole 1011. The depth of the second threaded hole 1011 is less than the thickness of the testing platform 101. The mounting platform 300 is detachably connected to the testing platform 101 by a third fastening bolt 900 passing through the third threaded through hole 301 and extending into the second threaded hole 1011. To ensure the stability of the connection between the mounting platform 300 and the testing platform 101, there can be multiple third threaded through holes 301 and multiple second threaded holes 1011, with each of the multiple second threaded holes 1011 corresponding to one of the multiple third threaded through holes 301.
[0046] In the above embodiment, the mounting platform 300 is placed on the upper surface of the test platform 101, such that the third threaded through hole 301 on the mounting platform 300 corresponds to the second threaded hole 1011 on the test platform 101. Then, the third fastening bolt 900 passes through the third threaded through hole 301 and the second threaded hole 1011 in sequence, thereby realizing the installation of the mounting platform 300 and the test platform 101. The above method of installing the mounting platform 300 and the test platform 101 by fastening bolts improves the convenience of installation and disassembly of both.
[0047] In some embodiments, reference Figure 1 and Figure 2 In this application, there are multiple first clamping units 400 and multiple second clamping units 500, and multiple third clamping units 600. The multiple first clamping units 400 and multiple second clamping units 500 correspond one-to-one with the multiple third clamping units 600.
[0048] In the above embodiments, since the mounting platform 300 has a certain size, and in order to improve the testing efficiency of vibration testing, multiple arc-shaped test pieces 200 are usually set on the mounting platform 300 and vibration tests are performed on multiple arc-shaped test pieces 200 simultaneously. Each arc-shaped test piece 200 requires a first clamping unit 400, a second clamping unit 500, and a third clamping unit 600 to fix it. Therefore, the multiple first clamping units 400, multiple second clamping units 500, and multiple third clamping units 600 set on the mounting platform 300 in this application ensure that multiple arc-shaped test pieces 200 can be clamped and fixed on the mounting platform 300 simultaneously, thereby improving the installation efficiency of the arc-shaped test pieces 200.
[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A vibration device for testing the performance of an arc-shaped test piece, characterized in that, include: The vibration test bench body (100) is provided with a test platform (101) for testing the vibration performance of the arc-shaped test piece (200) set on the test platform (101); The mounting platform (300) is mounted on the test platform (101), and a first clamping unit (400) and a second clamping unit (500) are provided on its upper surface at a first preset distance. The arc-shaped test piece (200) is longer than the first preset distance and is located between the first clamping unit (400) and the second clamping unit (500) to clamp and fix both sides of the arc-shaped test piece (200) through the first clamping unit (400) and the second clamping unit (500). The third clamping unit (600) is disposed on the top surface of the first clamping unit (400) and the second clamping unit (500) for clamping and fixing the top of the arc-shaped test piece (200).
2. The vibration device for performance testing of arc-shaped test pieces according to claim 1, characterized in that, The first clamping unit (400) and the second clamping unit (500) have the same structure; The first clamping unit (400) includes a base plate (401) and two upright plates (402). The base plate (401) is disposed on the mounting platform (300), and the two upright plates (402) are disposed on the upper surface of the base plate (401) at a second preset distance, the second preset distance being adapted to the thickness of the arc-shaped test piece (200).
3. The vibration device for performance testing of arc-shaped test pieces according to claim 2, characterized in that, The third clamping unit (600) includes two clamping plates (601) and a connecting plate (602). The two clamping plates (601) are parallel to each other and are both connected to the top surface of the first clamping unit (400) and the top surface of the second clamping unit (500). The connecting plate (602) is perpendicularly connected to the two clamping plates (601) and is located in the middle of the two clamping plates (601).
4. The vibration device for performance testing of arc-shaped test specimens according to claim 3, characterized in that, The connecting plate (602) is integrally formed with the two clamping plates (601).
5. The vibration device for performance testing of arc-shaped test specimens according to claim 3, characterized in that, Each of the clamping plates (601) has a first threaded through hole (6011) near its two ends, and each of the upright plates (402) has a first threaded hole (4021) of a preset depth on its top surface. Each clamping plate (601) is fixedly connected to the top surface of the upright plate (402) by means of a first fastening bolt (700) passing through the first threaded through hole (6011) and the first threaded hole (4021).
6. The vibration device for performance testing of arc-shaped test specimens according to claim 3, characterized in that, The connecting plate (602) has a second threaded through hole (6021) at both ends. The connecting plate (602) is detachably connected to another connecting plate (602) located above or below it by a second fastening bolt (800).
7. The vibration device for testing the performance of arc-shaped test specimens according to any one of claims 1 to 6, characterized in that, The mounting platform (300) has a third threaded through hole (301), and the test platform (101) has a second threaded hole (1011). The depth of the second threaded hole (1011) is less than the thickness of the test platform (101). The mounting platform (300) is connected to the test platform (101) by a third fastening bolt (900) through the third threaded through hole (301) and into the second threaded hole (1011).
8. The vibration device for performance testing of arc-shaped test specimens according to claim 7, characterized in that, There are multiple first clamping units (400) and multiple second clamping units (500), and multiple third clamping units (600). The multiple first clamping units (400) and multiple second clamping units (500) correspond one-to-one with the multiple third clamping units (600).