Vibration test tool and vibration test device

Abstract

The utility model provides a vibration test tool and a vibration test device, and relates to the technical field of vibration tests. The vibration test tool is used for assisting a vehicle frame provided with a suspension part to carry out a vibration test, and comprises at least one group of cross beam fixing assemblies and at least one group of longitudinal beam fixing assemblies. Each group of cross beam fixing assembly comprises two cross beam fixing pieces which are fixed on a cross beam of the frame; each group of longitudinal beam fixing components comprises two longitudinal beam fixing pieces which are fixed on a longitudinal beam of the frame. The vibration test tool and the vibration test device are used for improving the accuracy of the vibration test of the suspension part rack.

Description

Vibration testing fixtures and vibration testing devices Technical Field

[0001] This application relates to vibration testing technology, and more particularly to a vibration testing fixture and a vibration testing device. Background Technology

[0002] Side-mounted batteries are a common battery installation method in electric heavy trucks and other vehicles. The stability and reliability of the suspension components, including the side-mounted battery, are crucial to the vehicle.

[0003] Bench vibration testing can verify whether the vehicle's designed components meet the design requirements. Bench vibration testing is a test method that simulates the vibration environment of equipment under laboratory conditions. Typically, the suspension components are mounted on a vibration test bench using test fixtures, and vibration excitation is applied to the vibration test bench to conduct vibration testing, thereby detecting the stability and reliability of the side-mounted battery.

[0004] However, the test results of the above-mentioned bench vibration test differed significantly from the actual results, resulting in poor accuracy of the suspension vibration test. Summary of the Invention

[0005] This application provides a vibration testing fixture and a vibration testing device to improve the accuracy of vibration testing of suspension components on a test bench.

[0006] On the one hand, this application provides a vibration testing fixture for assisting in vibration testing of a vehicle frame with suspension components installed. The vibration testing fixture includes at least one set of crossbeam fixing components and at least one set of longitudinal beam fixing components.

[0007] The crossbeam fixing assembly includes two crossbeam fixing members, which are fixed to the crossbeam of the vehicle frame;

[0008] The longitudinal beam fixing assembly includes two longitudinal beam fixing members, which are fixed to the longitudinal beams of the vehicle frame.

[0009] In one possible implementation, the longitudinal beam fastener includes a longitudinal beam base plate and a longitudinal beam support plate mounted on the longitudinal beam base plate, the longitudinal beam base plate having a first connecting hole for connecting to the test bench;

[0010] The longitudinal beam support plate has a second connecting hole for connecting to the longitudinal beam.

[0011] In one possible implementation, the longitudinal beam fastener further includes a first support wing plate and a second support wing plate, the longitudinal beam support plate having opposing first and second sides;

[0012] One end of the first support wing plate is connected to the first side, and the other end of the first support wing plate is connected to the bottom plate of the longitudinal beam;

[0013] One end of the second support wing plate is connected to the second side, and the other end of the second support wing plate is connected to the bottom plate of the longitudinal beam.

[0014] In one possible implementation, the first support wing plates of the two longitudinal beam fasteners are arranged opposite to each other, and the length of the first support wing plate is greater than the length of the second support wing plate along the extending direction of the longitudinal beam support plate.

[0015] And / or, along the length direction of the bottom plate of the longitudinal beam, the length of the first support wing plate is greater than the length of the second support wing plate.

[0016] In one possible implementation, the beam fastener includes a beam base plate, a support base, and a beam top plate;

[0017] The bottom plate of the crossbeam has a third connecting hole, which is used to connect to the test bench.

[0018] The bottom of the support base is connected to the bottom plate of the crossbeam, and the top of the support base is connected to the top plate of the crossbeam.

[0019] The top plate of the crossbeam has a fourth connecting hole, which is used to connect to the crossbeam.

[0020] In one possible implementation, the crossbeam fastener has a clearance groove for avoiding interference with the frame.

[0021] In one possible implementation, the support base includes a first crossbeam support plate, a second crossbeam support plate, and a third crossbeam support plate connected in sequence.

[0022] The first crossbeam support plate, the second crossbeam support plate, the third crossbeam support plate, the top plate of the crossbeam, and the bottom plate of the crossbeam together form the clearance groove.

[0023] In one possible implementation, the support base further includes reinforcing wing plates, and the reinforcing wing plates are connected to both sides of the first crossbeam support plate and both sides of the third crossbeam support plate.

[0024] The top of the reinforcing wing plate is connected to the top plate of the crossbeam, and the bottom of the reinforcing wing plate is connected to the bottom plate of the crossbeam.

[0025] In one possible implementation, both sides of the first crossbeam support plate and both sides of the third crossbeam support plate are connected to the first side of the corresponding reinforcing wing plate.

[0026] The top of the second side of the reinforcing wing plate is flush with the outer side of the top plate of the crossbeam, and the bottom of the second side of the reinforcing wing plate is flush with the outer side of the bottom plate of the crossbeam.

[0027] On the other hand, this application provides a vibration testing apparatus, including a vehicle frame with a suspension component, a test bench, and any of the vibration testing fixtures mentioned above;

[0028] The frame includes crossbeams and longitudinal beams;

[0029] The vibration test fixture includes at least one set of crossbeam fixing components and at least one set of longitudinal beam fixing components, both of which are mounted on the test bench;

[0030] The beam fixing assembly includes two beam fixing members, which are fixed to the beam.

[0031] The longitudinal beam fixing assembly includes two longitudinal beam fixing members, which are fixed to the longitudinal beam.

[0032] The vibration testing fixture and vibration testing apparatus provided in this application have the following beneficial effects:

[0033] The vibration testing fixture provided in this application includes at least one set of crossbeam fixing assemblies and at least one set of longitudinal beam fixing assemblies. Each set of crossbeam fixing assemblies includes two crossbeam fixing members, which are fixed to the crossbeams of the vehicle frame equipped with suspension components to constrain the movement of the crossbeams. Each set of longitudinal beam fixing assemblies includes two longitudinal beam fixing members, which are fixed to the longitudinal beams of the vehicle frame equipped with suspension components to constrain the movement of the longitudinal beams. When the vibration testing fixture is installed on a test bench, it constrains the movement of the crossbeams and longitudinal beams of the vehicle frame, thereby fixing the vehicle frame on the test bench for vibration testing.

[0034] Compared to related technologies that directly fix the suspension components to the test bench using vibration testing fixtures, the vibration testing fixture provided in this application, by constraining the vehicle frame on which the suspension components are installed to fix the frame to the test bench, can reproduce the installation condition of the suspension components on the vehicle frame. The suspension components and the vehicle frame are jointly subjected to vibration excitation to detect the vibration response of the suspension components when they are installed on the vehicle frame, thereby improving the accuracy of suspension component vibration testing.

[0035] In addition, since each set of crossbeam fixing components includes two crossbeam fixing members and each set of longitudinal beam fixing components includes two longitudinal beam fixing members, the crossbeam fixing members can be adjusted in their installation position on the crossbeam, and the longitudinal beam fixing members can be adjusted in their installation position on the longitudinal beam to adapt to different vehicle frames and test benches. Attached Figure Description

[0036] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0037] Figure 1 is a structural schematic diagram of a vibration testing fixture provided in an embodiment of this application;

[0038] Figure 2 is a structural schematic diagram of a beam fastener provided in an embodiment of this application;

[0039] Figure 3 is a structural schematic diagram of a vibration testing device provided in an embodiment of this application.

[0040] Explanation of reference numerals in the attached figures:

[0041] 10 - Vibration testing fixture;

[0042] 10a-Crossbeam fixing assembly; 11-Crossbeam fastener; 111-Crossbeam base plate;

[0043] 111a - Third connecting hole; 112 - Support base; 112a - First crossbeam support plate;

[0044] 112b - Second crossbeam support plate; 112c - Third crossbeam support plate; 112d - Reinforcing wing plate;

[0045] 113-Top plate of the crossbeam; 113a-Fourth connecting hole; 10b-Longitudinal beam fixing assembly;

[0046] 12-Longitudinal beam fastener; 121-Longitudinal beam base plate; 121a-First connecting hole;

[0047] 122-Longitudinal beam support plate; 122a-Second connecting hole; 122b-First side surface;

[0048] 122c - Second side panel; 123 - First support wing plate; 124 - Second support wing plate;

[0049] 20-Frame;

[0050] 21-Horizontal beam; 22-Longitudinal beam;

[0051] 30 - Test stand.

[0052] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0053] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0054] The bench vibration test in related technologies suffers from a significant discrepancy between the test results and actual conditions, resulting in poor accuracy of suspension vibration tests. This problem arises because the stiffness and modal characteristic values ​​of the suspension components change after assembly with the vehicle frame. Directly fixing the suspension components using vibration fixtures cannot accurately reproduce the suspension components' response on their mounted main frame.

[0055] To address the aforementioned technical problems, this application provides a vibration testing device that, by constraining the vehicle frame on which the suspension components are mounted, fixes the vehicle frame to a test bench. This device can recreate the installation conditions of the suspension components on the vehicle frame, allowing both the suspension components and the vehicle frame to receive vibration excitation. This enables the detection of the vibration response of the suspension components when they are mounted on the vehicle frame, thereby improving the accuracy of suspension component vibration detection.

[0056] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0057] Referring to Figure 3, the vibration testing fixture 10 provided in this embodiment is used to assist a vehicle frame 20, on which a suspension component (not shown) is mounted, in conducting vibration tests. The vibration testing fixture 10 is mounted on a test bench 30, and the vehicle frame 20 is mounted on the vibration testing fixture 10.

[0058] Referring to Figures 1 and 3, the vibration test fixture 10 includes at least one set of crossbeam fixing components 10a and at least one set of longitudinal beam fixing components 10b. The crossbeam fixing components 10a are used to fix the crossbeam 21 of the support 20. The number of crossbeam fixing components 10a is at least one set, such as one set, two sets, three types or more, which is not limited in this application.

[0059] Taking Figures 1 and 3 as examples, the vibration test fixture 10 includes a set of crossbeam fixing components 10a. Each set of crossbeam fixing components 10a includes two crossbeam fixing parts 11, one of which is fixed to the crossbeam 21 at the front end of the frame 20, and the other is fixed to the crossbeam 21 at the rear end of the frame 20.

[0060] When the vibration testing fixture 10 includes two, three, or more sets of crossbeam fixing assemblies 10a, each set of crossbeam fixing assemblies 10a includes two crossbeam fixing members 11. The two crossbeam fixing members 11 of one set of crossbeam fixing assemblies 10a can be fixed to the two crossbeams 21 at the front and rear ends of the vehicle frame 20, respectively. The crossbeam fixing members 11 in the remaining sets of crossbeam fixing assemblies 10a can be fixed to the crossbeam 21 between the front and rear ends of the vehicle frame 20. When the vehicle frame 20 is long along its longitudinal direction, this arrangement can improve the connection strength between the vibration testing fixture 10 and the crossbeams 21.

[0061] In another possible implementation, the vibration testing fixture 10 includes two, three, or more sets. One of the crossbeam fixing members 11 in each set of crossbeam fixing assemblies 10a is fixed at intervals along the length of the crossbeam 21 to the front crossbeam 21 of the frame 20. Another crossbeam fixing member 11 in each set of crossbeam fixing assemblies 10a is fixed at intervals along the length of the crossbeam 21 to the rear crossbeam 21 of the frame 20. This arrangement improves the connection strength between the vibration testing fixture 10 and the crossbeam 21 when the frame 20 is long in its lateral direction.

[0062] Referring to Figures 1 and 3, the vibration testing fixture 10 includes at least one set of longitudinal beam fixing assemblies 10b, which are used to fix the longitudinal beams 22 of the frame 20. Taking Figures 1 and 3 as an example, the vibration testing fixture 10 includes two sets of longitudinal beam fixing assemblies 10b, each set including two longitudinal beam fixing members 12. Referring to Figure 3, one of the longitudinal beam fixing members 12 in the two sets of longitudinal beam fixing assemblies 10b is fixed to the longitudinal beam 22 at intervals along its length. The other longitudinal beam fixing member 12 in the two sets of longitudinal beam fixing assemblies 10b is disposed at intervals on the corresponding longitudinal beam 22 along its length.

[0063] When the vibration test fixture 10 includes three or more sets of longitudinal beam fixing components 10b, the arrangement of each set of longitudinal beam fixing components 10b is the same as that of two sets of longitudinal beam fixing components 10b, and will not be repeated here. When the vibration test fixture 10 includes one set of longitudinal beam fixing components 10b, the longitudinal beam fixing component 10b includes two longitudinal beam fixing parts 12, and the two longitudinal beam fixing parts 12 are respectively fixed on two longitudinal beams 22.

[0064] The vibration testing fixture 10 provided in this application embodiment includes two crossbeam fixing members 11 in each set of crossbeam fixing assemblies 10a. The crossbeam fixing members 11 are fixed to the crossbeam 21 of the frame 20 on which the suspension is installed to constrain the movement of the crossbeam 21. Each set of longitudinal beam fixing assemblies 10b includes two longitudinal beam fixing members 12. The longitudinal beam fixing members 12 are fixed to the longitudinal beam 22 of the frame 20 on which the suspension is installed to constrain the movement of the longitudinal beam 22.

[0065] Referring to Figure 3, when the vibration testing fixture 10 is installed on the test bench 30, the vibration testing fixture 10 constrains the movement of the crossbeam 21 and longitudinal beam 22 of the frame 20, thereby fixing the frame 20 on the test bench 30 for vibration testing. By constraining the frame 20 with the suspension components installed to fix the frame 20 on the test bench 30, the installation condition of the suspension components on the frame 20 can be reproduced. The suspension components and the frame 20 jointly receive vibration excitation to detect the vibration response of the suspension components when installed on the frame 20, thereby improving the accuracy of suspension component vibration detection.

[0066] In some embodiments, as shown in Figures 1 and 3, the longitudinal beam fastener 12 includes a longitudinal beam base plate 121 and a longitudinal beam support plate 122. The longitudinal beam base plate 121 is the part of the longitudinal beam fastener 12 that connects to the test bench 30. The longitudinal beam base plate 121 has first connecting holes 121a. Referring to Figure 1, there can be multiple first connecting holes 121a. The multiple first connecting holes 121a can be arranged in a grid pattern on the longitudinal beam base plate 121 to facilitate connection with the mounting holes on the test bench 30 by means of threaded connection.

[0067] Referring to Figures 1 and 3, the longitudinal beam support plate 122 is the part of the longitudinal beam fixing component 12 that connects to the longitudinal beam 22. The longitudinal beam support plate 122 is installed on the longitudinal beam base plate 121, for example, by welding, threaded connection, or other means. The longitudinal beam support plate 122 has a second connecting hole 122a, which is used to connect to the longitudinal beam 22. For example, the longitudinal beam support plate 122 is threadedly connected to the longitudinal beam 22 through the second connecting hole 122a.

[0068] In some embodiments, as shown in FIG1, the longitudinal beam fixing member 12 further includes a first support wing plate 123 and a second support wing plate 124, which are used to increase the support strength of the longitudinal beam fixing member 12 for the longitudinal beam 22 and the bracket 20.

[0069] As shown in Figure 1, the longitudinal beam support plate 122 has opposing first side surface 122b and second side surface 122c, and a second connecting hole 122a extends from the first side surface 122b to the second side surface 122c. One end of the first support wing plate 123 is connected to the first side surface 122b, and the other end of the first support wing plate 123 is connected to the longitudinal beam bottom plate 121. One end of the second support wing plate 124 is connected to the second side surface 122c, and the other end of the second support wing plate 124 is connected to the longitudinal beam bottom plate 121. The first support wing plate 123 and the second support wing plate 124 provide oblique support for the longitudinal beam support plate 122 and the longitudinal beam 22 mounted on the longitudinal beam support plate 122, thereby improving the connection strength between the longitudinal fastener 12 and the longitudinal beam 22.

[0070] In some embodiments, referring to FIG1, the first support wing plates 123 of the two longitudinal beam fasteners 12 are arranged opposite each other, for example, the first side 122b of one longitudinal beam fastener 12 faces the second side 122c of the other longitudinal beam fastener 12.

[0071] Along the extension direction of the longitudinal beam support plate 122, the length of the first support wing plate 123 is greater than the length of the second support wing plate 124, so that the supporting force provided by the first support wing plate 123 is greater than the supporting force of the second support wing plate 124. Furthermore, the first support wing plates 123 of the two longitudinal beam fasteners 12 are arranged opposite to each other, thereby further increasing the support of the longitudinal fasteners 12 on the longitudinal beam 22. And / or, along the length direction of the longitudinal beam bottom plate 121, the length of the first support wing plate 123 is greater than the length of the second support wing plate 124, so that the supporting force provided by the first support wing plate 123 is greater than the supporting force of the second support wing plate 124. Furthermore, the first support wing plates 123 of the two longitudinal beam fasteners 12 are arranged opposite to each other, thereby further increasing the support of the longitudinal fasteners 12 on the longitudinal beam 22.

[0072] In some embodiments, referring to Figures 1 and 2, the crossbeam fastener 11 includes a crossbeam base plate 111, a support base 112, and a crossbeam top plate 113. The crossbeam base plate 111 is the portion of the crossbeam fastener 11 that connects to the test bench 30. The crossbeam base plate 111 has a third connecting hole 111a. There can be multiple third connecting holes 111a, which can be arranged in a grid pattern on the crossbeam base plate 111 to facilitate connection between the third connecting holes 111a and the mounting holes on the test bench 30 via threaded connections.

[0073] Referring to Figure 2, the support base 112 is located between the bottom plate 111 and the top plate 113 of the crossbeam. The bottom of the support base 112 is connected to the bottom plate 111, and the top of the support base 112 is connected to the top plate 113. For example, the support base 112 is connected to the bottom plate 111 or the top plate 113 of the crossbeam by welding, threaded connection, or other methods. The top plate 113 of the crossbeam has a fourth connecting hole 113a. There can be multiple fourth connecting holes 113a, which can be distributed in a grid pattern. The fourth connecting holes 113a are used to connect to the crossbeam 21. For example, the top plate 113 of the crossbeam is threadedly connected to the crossbeam 21 through the fourth connecting holes 113a.

[0074] In some embodiments, referring to FIG2, the crossbeam fastener 11 has a clearance groove, which can be provided on the support 112. For example, the support 112 has a clearance groove on its side. Since the shape and size of the frame 20 are different, the clearance groove is used to avoid interference with the frame 20.

[0075] In some embodiments, the support base 112 includes a first crossbeam support plate 112a, a second crossbeam support plate 112b, and a third crossbeam support plate 112c connected in sequence. Taking Figure 2 as an example, the first crossbeam support plate 112a and the third crossbeam support plate 112c are arranged opposite to each other, and the two sides of the second crossbeam support plate 112b are respectively connected to the first crossbeam support plate 112a and the third crossbeam support plate 112c, so that the first crossbeam support plate 112a, the second crossbeam support plate 112b, the third crossbeam support plate 112c, the top plate 113 of the crossbeam, and the bottom plate 111 of the crossbeam together form a clearance groove. This arrangement reduces the amount of material used, achieving a weight reduction effect, and making the crossbeam fixing member 11 easier to handle and carry.

[0076] In some embodiments, referring to FIG2, the support base 112 further includes reinforcing wing plates 112d. The reinforcing wing plates 112d are connected to both sides of the first crossbeam support plate 112a and both sides of the third crossbeam support plate 112c. For example, the reinforcing wing plates 112d are welded to both sides of the corresponding first crossbeam support plate 112a and both sides of the third crossbeam support plate 112c.

[0077] The top of the reinforcing wing plate 112d is connected to the top plate 113 of the crossbeam, and the bottom of the reinforcing wing plate 112d is connected to the bottom plate 111 of the crossbeam. For example, the reinforcing wing plate 112d is welded to the top plate 113 and the bottom plate 111 of the crossbeam. The reinforcing wing plate 112d can improve the support strength of the crossbeam fastener 11 to the crossbeam 21.

[0078] In some embodiments, referring to FIG2, both sides of the first crossbeam support plate 112a and both sides of the third crossbeam support plate 112c are connected to the first side of the corresponding reinforcing wing plate 112d. The top of the second side of the reinforcing wing plate 112d is flush with the outer side of the crossbeam top plate 113, and the bottom of the second side of the reinforcing wing plate 112d is flush with the outer side of the crossbeam bottom plate 111. This allows the reinforcing wing plate 112d to connect the outer edges of the crossbeam bottom plate 111 and the crossbeam top plate 113, providing oblique support to the crossbeam 21 and further improving the support strength of the crossbeam fastener 11 for the crossbeam 21.

[0079] Referring to Figure 3, this application embodiment also provides a vibration testing apparatus, which includes a vehicle frame 20 with suspension components mounted, a test bench 30, and the vibration testing fixture 10 from any of the above embodiments. The vehicle frame 20 includes a crossbeam 21 and a longitudinal beam 22.

[0080] The vibration testing fixture 10 includes at least one set of crossbeam fixing components 10a and at least one set of longitudinal beam fixing components 10b, both of which are mounted on the test bench 30. For example, the crossbeam fixing components 10a and 10b are threadedly connected to the test bench 30. The crossbeam fixing component 10a includes two crossbeam fixing members 11, which are fixed to the crossbeam 21. The longitudinal beam fixing component 10b includes two longitudinal beam fixing members 12, which are fixed to the longitudinal beam 22.

[0081] The vibration testing fixture 10 constrains the movement of the crossbeam 21 and longitudinal beam 22 of the frame 20, thereby fixing the frame 20 on the test bench 30 for vibration testing. By constraining the frame 20, on which the suspension components are mounted, and fixing the frame 20 on the test bench 30, the installation condition of the suspension components on the frame 20 can be reproduced. The suspension components and the frame 20 are subjected to vibration excitation together, so as to detect the vibration response of the suspension components when they are mounted on the frame 20, thereby improving the accuracy of suspension component vibration testing.

[0082] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0083] It should be noted that the embodiments referred to in the specification as "in particular implementation," "in some embodiments," "in this embodiment," "exemplarily," etc., may include specific features, structures, or characteristics, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0084] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0085] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0086] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or a signal connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0087] It should be readily understood that “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

Claims

1. A vibration testing fixture, characterized in that, The vibration testing fixture is used to assist in vibration testing of a vehicle frame with suspension components. The vibration testing fixture includes at least one set of crossbeam fixing assemblies and at least one set of longitudinal beam fixing assemblies. Each set of crossbeam fixing assemblies includes two crossbeam fixing members, which are fixed to the crossbeams of the vehicle frame. Each set of longitudinal beam fixing assemblies includes two longitudinal beam fixing members, which are fixed to the longitudinal beams of the vehicle frame.

2. The vibration testing fixture according to claim 1, characterized in that, The longitudinal beam fixing component includes a longitudinal beam base plate and a longitudinal beam support plate mounted on the longitudinal beam base plate. The longitudinal beam base plate has a first connecting hole for connecting to a test bench; the longitudinal beam support plate has a second connecting hole for connecting to the longitudinal beam.

3. The vibration testing fixture according to claim 2, characterized in that, The longitudinal beam fixing component further includes a first support wing plate and a second support wing plate. The longitudinal beam support plate has a first side and a second side opposite to each other. One end of the first support wing plate is connected to the first side, and the other end of the first support wing plate is connected to the longitudinal beam bottom plate. One end of the second support wing plate is connected to the second side, and the other end of the second support wing plate is connected to the longitudinal beam bottom plate.

4. The vibration testing fixture according to claim 3, characterized in that, The first support wing plates of the two longitudinal beam fixing members are arranged opposite to each other, and the length of the first support wing plate is greater than the length of the second support wing plate along the extension direction of the longitudinal beam support plate; and / or, the length of the first support wing plate is greater than the length of the second support wing plate along the length direction of the longitudinal beam bottom plate.

5. The vibration testing fixture according to any one of claims 1-4, characterized in that, The crossbeam fixing component includes a crossbeam base plate, a support base, and a crossbeam top plate; the crossbeam base plate has a third connecting hole for connecting to a test bench; the bottom of the support base is connected to the crossbeam base plate, and the top of the support base is connected to the crossbeam top plate; the crossbeam top plate has a fourth connecting hole for connecting to the crossbeam.

6. The vibration testing fixture according to claim 5, characterized in that, The crossbeam fastener has a clearance groove, which is used to avoid interference with the vehicle frame.

7. The vibration testing fixture according to claim 6, characterized in that, The support base includes a first crossbeam support plate, a second crossbeam support plate, and a third crossbeam support plate connected in sequence; the first crossbeam support plate, the second crossbeam support plate, the third crossbeam support plate, the top plate of the crossbeam, and the bottom plate of the crossbeam together form the clearance groove.

8. The vibration testing fixture according to claim 7, characterized in that, The support base also includes reinforcing wing plates, which are connected to both sides of the first crossbeam support plate and both sides of the third crossbeam support plate; the top of the reinforcing wing plate is connected to the top plate of the crossbeam, and the bottom of the reinforcing wing plate is connected to the bottom plate of the crossbeam.

9. The vibration testing fixture according to claim 8, characterized in that, Both sides of the first crossbeam support plate and both sides of the third crossbeam support plate are connected to the first side of the corresponding reinforcing wing plate; the top of the second side of the reinforcing wing plate is flush with the outer side of the top plate of the crossbeam, and the bottom of the second side of the reinforcing wing plate is flush with the outer side of the bottom plate of the crossbeam.

10. A vibration testing apparatus, characterized in that, The device includes a vehicle frame with suspension components, a test bench, and a vibration testing fixture as described in any one of claims 1-9; the vehicle frame includes crossbeams and longitudinal beams; the vibration testing fixture includes at least one set of crossbeam fixing assemblies and at least one set of longitudinal beam fixing assemblies, both of which are mounted on the test bench; the crossbeam fixing assembly includes two crossbeam fixing members, which are fixed to the crossbeams; the longitudinal beam fixing assembly includes two longitudinal beam fixing members, which are fixed to the longitudinal beams.

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