Detection auxiliary device

Abstract

The utility model discloses a detection auxiliary device, comprising a main body member which is provided with a vibration generation part; the vibration conduction piece is arranged on the main body piece, the vibration conduction piece is provided with a contact surface, and the contact surface is used for being in surface contact with the inner wall surface of a suspension sleeve type support on a vehicle body so as to conduct vibration of the vibration generation part to the suspension sleeve type support; wherein the main body piece is further provided with an acquisition part, and the acquisition part is used for installing the induction piece so as to acquire vibration frequency response information and obtain the characteristics of the suspension sleeve type support. According to the utility model, the contact surface on the vibration conduction piece is arranged to be in surface contact with the inner wall surface of the suspension sleeve type bracket, so that compared with a point contact mode in the prior art, the vibration generated by the vibration generation part on the main body piece is conducted to the inner wall surface of the suspension sleeve type bracket; equivalently, a plurality of force hammers knock the inner wall surface of the suspended sleeve type bracket at the same time, so that the test result is closer to reality, and the accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection instruments, in particular to a detection auxiliary device. Background Art

[0002] In the related technology, load-bearing vehicles install subsystems such as the power system, transmission system, steering system, and driving system on the vehicle body through mounting brackets. Various static loads and dynamic loads transmitted by the subsystems directly act on the mounting brackets. The dynamic stiffness of the mounting brackets directly reflects the ability of the vehicle body structure to suppress the transmission of vibration energy under load, and has a great impact on the vibration and noise inside the vehicle. If the dynamic stiffness of the mounting bracket is insufficient, it will cause force and vibration to be easily transmitted to the vehicle body, causing the vehicle body structure to generate large noise and vibration. Therefore, it is necessary to test and analyze the dynamic stiffness of the mounting bracket.

[0003] For the test of the dynamic stiffness of the mounting bracket, a certain point on the mounting bracket is usually directly hit with a force hammer to collect frequency response curve data. However, the force hammer only hits a certain point on the mounting bracket. The test result is difficult to reflect the overall dynamic stiffness of the mounting bracket, and the test accuracy is insufficient. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a detection auxiliary device, which makes the test result closer to reality and improves the accuracy.

[0005] According to the detection auxiliary device of the embodiment of the utility model, it includes: a main body, on which a vibration generating part is provided; a vibration conducting part, which is provided on the main body, and has a contact surface, which is used to contact the inner wall surface of a suspended sleeve-type bracket on the vehicle body to conduct the vibration of the vibration generating part to the suspended sleeve-type bracket; wherein the main body is also provided with a collecting part, and the collecting part is used to install a sensing part to collect vibration frequency response information and obtain the characteristics of the suspended sleeve-type bracket.

[0006] According to the detection auxiliary device of the embodiment of the utility model, by setting the contact surface on the vibration transmission part to contact the inner wall surface of the suspension sleeve type bracket, compared with the point contact method in the related technology, the vibration generated by the vibration generating part on the main body of the utility model is transmitted to the inner wall surface of the suspension sleeve type bracket, which is equivalent to multiple hammers hitting the inner wall surface of the suspension sleeve type bracket at the same time, so that the test results are closer to reality and the accuracy is improved.

[0007] In some embodiments, there are multiple vibration conductors, and the multiple vibration conductors are arranged at intervals along the circumferential direction of the main body; wherein the vibration conductors can be movably arranged on the main body to change the distance between the multiple vibration conductors.

[0008] In some embodiments, there are multiple vibration conductors, including a first vibration conductor and a second vibration conductor, the first vibration conductor and the second vibration conductor are spaced apart along the circumferential direction of the main body, the first vibration conductor has a first contact surface for abutting the inner wall surface, and the second vibration conductor has a second contact surface for abutting the inner wall surface; wherein the vibration conductor can be movably arranged on the main body to change the distance between the first contact surface and the second contact surface.

[0009] In some embodiments, the plurality of vibration conductors further include: a third vibration conductor, and the first vibration conductor, the second vibration conductor, and the third vibration conductor are evenly spaced and arranged along the circumferential direction of the main body.

[0010] In some embodiments, the main body is provided with a first connection portion, and the vibration conductor has a second connection portion, the second connection portion is connected to the first connection portion, and the distance between the first connection portion and the center line of the main body gradually increases along the axial direction of the main body.

[0011] In some embodiments, one of the first connecting portion and the second connecting portion is configured as a receiving groove, and the other is configured as a slider, and the slider is slidably matched with the receiving groove; wherein the groove wall of the receiving groove is configured as a positioning surface, and the positioning surface is at least partially located on the side of the slider away from the center line.

[0012] In some embodiments, the detection auxiliary device further includes: an adjustment component, which is movably disposed on the main body, and the adjustment component is connected to the vibration conductor to drive the vibration conductor.

[0013] In some embodiments, the adjustment component includes: an adjustment member, which is movably disposed on the main body; a pushing member, which is disposed on a side of the vibration conductor away from the main body, and the pushing member is connected to the adjustment member to push the vibration conductor to move in the direction of the main body.

[0014] In some embodiments, the adjusting member includes: a blocking portion, which is arranged on a side of the pushing member away from the main member; a threaded connection portion, which passes through the pushing member to connect to the blocking portion, and the threaded connection portion is threadedly connected to the main member; an operating portion, which is arranged at one end of the threaded connection portion away from the blocking portion, and the operating portion is located on a side of the main member away from the vibration transmitting member.

[0015] In some embodiments, the main body has a raised portion, and the raised portion is at least partially configured as the collecting portion; wherein the raised portion is also provided with a first vibration surface, a second vibration surface and a third vibration surface, and the first vibration surface, the second vibration surface and the third vibration surface are configured as the vibration generating portion, and any two of the first vibration surface, the second vibration surface and the third vibration surface are perpendicular to each other.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of the structure of the detection auxiliary device in the embodiment of the utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the cooperation between the detection auxiliary device and the suspension sleeve bracket installed on the vehicle body;

[0020] Figure 3 for Figure 1 A schematic diagram of the cooperation between the detection auxiliary device and the suspended sleeve bracket;

[0021] Figure 4 for Figure 1 A schematic diagram of the structure of the main body of FIG.

[0022] Figure 5 for Figure 1 A schematic diagram of the structure of the vibration transmission part;

[0023] Figure 6 for Figure 1 A schematic diagram of the structure of the adjusting member in FIG.

[0024] Figure 7 for Figure 1 Schematic diagram of the structure of the pushing member.

[0025] Reference numerals:

[0026] 100. Detection auxiliary device;

[0027] 10. Main body; 11. Vibration generating part; 12. Collection part; 13. Accommodation groove; 131. Positioning surface; 14. Raised part; 141. First vibration surface; 142. Second vibration surface; 143. Third vibration surface;

[0028] 20. Vibration transmission member; 21. First vibration transmission member; 211. First contact surface; 22. Second vibration transmission member; 221. Second contact surface; 23. Third vibration transmission member; 24. Slider; 25. Contact surface;

[0029] 30. Adjustment assembly; 31. Adjustment member; 311. Blocking portion; 312. Threaded connection portion; 313. Operation portion; 32. Pushing member;

[0030] 1000. Vehicle body; 200. Suspension sleeve bracket. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 invention.

[0033] In addition, features defined as “first” or “second” may explicitly or implicitly include one or more such features, and are used to distinguish and describe features, without any distinction in order or importance.

[0034] In the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The detection auxiliary device 100 according to the embodiment of the utility model is described below with reference to the accompanying drawings.

[0037] Reference Figures 1 to 3 As shown, according to the detection auxiliary device 100 of the embodiment of the utility model, the detection auxiliary device 100 includes: a main body 10 and a vibration conducting member 20 .

[0038] The main body 10 is provided with a vibration generating part 11. The vibration generating part 11 on the main body 10 vibrates, for example, by hitting the vibration generating part 11 with a hammer, thereby vibrating.

[0039] The vibration conductor 20 is disposed on the main body 10 and has a contact surface 25 for contacting the inner wall surface of the suspension sleeve bracket 200 on the vehicle body 1000 to transmit the vibration of the vibration generating part 11 to the suspension sleeve bracket 200 .

[0040] The vibration transmission component 20 is disposed on the main body 10 and contacts the inner wall surface of the suspension sleeve bracket 200 . The vibration transmission component 20 transmits the vibration of the vibration generating part 11 to the suspension sleeve bracket 200 .

[0041] For example, the suspension sleeve bracket 200 refers to Figure 2 As shown, on the vehicle, a suspension sleeve bracket 200 is installed on the vehicle body 1000. The suspension sleeve bracket 200 is constructed as a powertrain passive side mounting bracket. The powertrain is connected to the powertrain passive side mounting bracket via the powertrain active side mounting bracket, thereby being positioned on the vehicle body 1000. The powertrain can be a motor or an engine.

[0042] The main body 10 is also provided with a collecting part 12, which is used to install a sensing part to collect vibration frequency response information and obtain the characteristics of the suspended sleeve bracket 200. The sensing part is a sensor, which is used to sense and collect vibration frequency response information.

[0043] Specifically, the characteristic of the suspension sleeve bracket 200 may be dynamic stiffness, or may be NTF (body acoustic vibration transfer function) and VTF (vibration transfer function) or other transfer functions.

[0044] In the related art, a load-bearing vehicle installs subsystems such as the power system, transmission system, steering system, and driving system on the vehicle body through a mounting bracket. Various static loads and dynamic loads transmitted from the subsystems directly act on the mounting bracket. The dynamic stiffness of the mounting bracket directly reflects the ability of the vehicle body structure to suppress the transmission of vibration energy under load, and has a great impact on the vibration and noise inside the vehicle. Insufficient dynamic stiffness of the mounting bracket will cause force and vibration to be easily transmitted to the vehicle body, causing the vehicle body structure to produce greater noise and vibration. Therefore, it is necessary to test and analyze the dynamic stiffness of the mounting bracket. For the test of the dynamic stiffness of the mounting bracket, it is usually necessary to directly hit a certain point on the mounting bracket with a force hammer to collect frequency response curve data. However, the force hammer only hits a certain point on the mounting bracket, and the test results are difficult to reflect the overall dynamic stiffness of the mounting bracket, and the test accuracy is insufficient.

[0045] The utility model sets a vibration transmission part 20 to contact the inner wall surface of the suspension sleeve type bracket 200. Compared with the point contact method in the related art, the vibration generated by the vibration generating part 11 on the main part 10 in the utility model is transmitted to the inner wall surface of the suspension sleeve type bracket 200, which is equivalent to multiple hammers hitting the inner wall surface of the suspension sleeve type bracket 200 at the same time, so that the test results are closer to reality and the accuracy is improved.

[0046] Specifically, the suspended sleeve bracket 200 is constructed as a sleeve structure, the vibration transmission member 20 is inserted into the sleeve structure and fits the inner wall surface thereof, the force hammer strikes the vibration generating part 11, the vibration is transmitted to the sleeve structure through the vibration transmission member 20, the induction member installed on the collection part 12 senses the vibration, collects the vibration frequency response information, and analyzes the vibration frequency response information to obtain the dynamic stiffness, or obtains the NTF, VTF or other transfer function. The method of analyzing the vibration frequency response information to obtain the dynamic stiffness is known to those of ordinary skill in the art and will not be repeated here.

[0047] According to the detection auxiliary device 100 of the embodiment of the utility model, by setting the contact surface 25 on the vibration transmission part 20 to contact the inner wall surface of the suspension sleeve type bracket 200, compared with the point contact method in the related art, the vibration generated by the vibration generating part 11 on the main body 10 in the utility model is transmitted to the inner wall surface of the suspension sleeve type bracket 200, which is equivalent to multiple hammers hitting the inner wall surface of the suspension sleeve type bracket 200 at the same time, so that the test result is closer to reality and the accuracy is improved.

[0048] Reference Figure 1 As shown, in some embodiments, there are multiple vibration conductors 20, and the multiple vibration conductors 20 are arranged at intervals along the circumferential direction of the main body 10.

[0049] The vibration conductor 20 is movably disposed on the main body 10 to change the distance between the plurality of vibration conductors 20. By movably disposing the plurality of vibration conductors 20 on the main body 10, the distance between the plurality of vibration conductors 20 can be adjusted. It can be understood that the inner diameters of the suspension sleeve brackets 200 of different sizes are different. Adjusting the distance between the plurality of vibration conductors 20 can make the vibration conductors 20 always contact the inner wall surface of the suspension sleeve brackets 200 of different sizes, thereby adapting to the suspension sleeve brackets 200 of different sizes and improving the applicability.

[0050] For example, there may be two vibration conductors 20, which respectively abut against opposite sides of the inner wall surface; or, there may be three vibration conductors 20, which are arranged in a circle; or, there may be more vibration conductors 20, which will not be elaborated here.

[0051] In some embodiments, there are multiple vibration conductors 20, including a first vibration conductor 21 and a second vibration conductor 22, the first vibration conductor 21 and the second vibration conductor 22 are arranged at intervals along the circumferential direction of the main body 10, the first vibration conductor 21 has a first contact surface 211 for abutting the inner wall surface, and the second vibration conductor 22 has a second contact surface 221 for abutting the inner wall surface.

[0052] The vibration conductor 20 can be movably arranged on the main body 10 to change the distance between the first contact surface 211 and the second contact surface 221. By arranging the first vibration conductor 21 and the second vibration conductor 22, and the first vibration conductor 21 and the second vibration conductor 22 are arranged at intervals along the circumferential direction of the main body 10, the first contact surface 211 of the first vibration conductor 21 abuts against the inner wall surface, and the second contact surface 221 of the second vibration conductor 22 abuts against the inner wall surface, the contact area is increased, and the detection accuracy is improved.

[0053] Specifically, the distance between the first contact surface 211 and the second contact surface 221 changes to adapt to suspension sleeve brackets 200 with different inner diameters. For example, two suspension sleeve brackets 200 with different inner diameters need to be tested. The inner diameter of the first suspension sleeve bracket 200 is smaller. The vibration conductor 20 is inserted into the suspension sleeve bracket 200, and the suspension sleeve bracket 200 is adjusted so that the contact surface 25 abuts the inner wall surface. When testing the second suspension sleeve bracket 200, the distance between the first contact surface 211 and the second contact surface 221 is increased so that the first contact surface 211 and the second contact surface 221 still abut the inner wall surface of the second suspension sleeve bracket 200.

[0054] Specifically, the first vibration conductor 21 and the second vibration conductor 22 are disposed on opposite sides of the main body 10 , so that the auxiliary detection device 100 is installed on the suspension sleeve bracket 200 more stably.

[0055] Reference Figure 1 As shown, in some embodiments, the plurality of vibration conductors 20 further include: a third vibration conductor 23, and the first vibration conductor 21, the second vibration conductor 22, and the third vibration conductor 23 are evenly spaced and arranged along the circumferential direction of the main body 10. By providing the third vibration conductor 23, and arranging the first vibration conductor 21, the second vibration conductor 22, and the third vibration conductor 23 evenly spaced and arranged along the circumferential direction of the main body 10, it is more convenient for the plurality of vibration conductors 20 to abut against the inner wall surface.

[0056] Specifically, the first vibration conductor 21, the second vibration conductor 22 and the third vibration conductor 23 are evenly spaced apart along the circumferential direction of the main body 10, that is, the angle between two adjacent vibration conductors 20 is 120°, so that it is more convenient to adjust the first vibration conductor 21, the second vibration conductor 22 and the third vibration conductor 23 to abut against the inner wall surface.

[0057] In some embodiments, the main body 10 is provided with a first connection portion, the vibration conductor 20 has a second connection portion, the second connection portion is connected to the first connection portion, and the distance between the first connection portion and the center line of the main body 10 gradually increases in the axial direction of the main body 10. By setting the distance between the first connection portion and the center line of the main body 10 to gradually increase in the axial direction of the main body 10, the distance between the plurality of vibration conductors 20 is changed, thereby adapting to the requirements of the suspension sleeve bracket 200 of different sizes and improving the versatility.

[0058] Specifically, the main body 10 is constructed as a truncated cone, and the first connecting portion is arranged on the side of the truncated cone.

[0059] Reference Figure 1 , Figure 4 and Figure 5 As shown, in some specific embodiments, one of the first connection portion and the second connection portion is configured as a receiving groove 13, and the other is configured as a slider 24, and the slider 24 is slidably matched with the receiving groove 13. Through the cooperation between the receiving groove 13 and the slider 24, the slider 24 changes the distance between different vibration conducting members 20 while sliding in the receiving groove 13, and the structure is simple, practical, and highly stable.

[0060] The groove wall of the receiving groove 13 is configured as a positioning surface 131, and the positioning surface 131 is at least partially located on the side of the slider 24 away from the center line. By setting the positioning surface 131 at least partially located on the side of the slider 24 away from the center line, the slider 24 is positioned by using the positioning surface 131, and the slider 24 is stabilized in the receiving groove 13, so as to prevent the slider 24 from being separated from the receiving groove 13, thereby improving stability.

[0061] Reference Figure 1 As shown, in some embodiments, the detection auxiliary device 100 further includes: an adjustment component 30, which is movably disposed on the main body 10, and the adjustment component 30 is connected to the vibration conductor 20 to drive the vibration conductor 20. By setting the adjustment component 30 to drive the vibration conductor 20, the user does not need to directly pull the vibration conductor 20, which is convenient for the user to use and improves convenience.

[0062] Reference Figure 1 , Figure 6 and Figure 7 As shown, in some embodiments, the adjustment assembly 30 includes: an adjustment member 31 and a pushing member 32 .

[0063] The adjusting member 31 is movably disposed on the main body 10 .

[0064] The pusher 32 is disposed on the side of the vibration conductor 20 away from the main body 10, and the pusher 32 is connected to the adjustment member 31 to push the vibration conductor 20 to move in the direction where the vibration conductor 20 is located. Through the cooperation between the adjustment member 31 and the pusher 32, the movable adjustment member 31 drives the pusher 32 to move, thereby pushing the vibration conductor 20 to move, adjusting the distance between the multiple vibration conductors 20, and facilitating the user's control.

[0065] Specifically, the adjusting member 31 is threadedly connected to the main member 10, and the adjusting member 31 moves more stably. The pushing member 32 is sleeved on the adjusting member 31. The adjusting member 31 rotates while moving itself, and the pushing member 32 moves at the same time. The pushing member 32 is sleeved on the pushing member 32, and the pushing member 32 itself does not rotate, thereby avoiding interference with the vibration transmission member 20.

[0066] Reference Figure 1 , Figure 6 As shown, in some embodiments, the adjustment member 31 includes: a blocking portion 311 , a threaded connection portion 312 and an operating portion 313 .

[0067] The blocking portion 311 is disposed on a side of the pushing member 32 facing away from the main body 10 .

[0068] The threaded connection portion 312 passes through the pushing member 32 and is connected to the blocking portion 311 , and the threaded connection portion 312 is threadedly connected to the main body 10 .

[0069] The operating portion 313 is disposed at one end of the threaded connection portion 312 away from the blocking portion 311, and the operating portion 313 is located on the side of the main body 10 away from the vibration conductor 20. By disposing the operating portion 313 on the side of the main body 10 away from the vibration conductor 20, it is convenient for the user to contact the operating portion 313, thereby making the use of the detection auxiliary device 100 more convenient.

[0070] Specifically, refer to Figure 2 , Figure 3 As shown, the operating part 313 is arranged at one end of the threaded connection part 312 away from the blocking part 311, and the operating part 313 is located on the side of the main body 10 away from the vibration conductor 20, so that the operating part 313 is exposed to the outside, thereby facilitating the user to contact the operating part 313, and the user does not need to insert his fingers into the interior of the detection auxiliary device 100, thereby improving convenience.

[0071] Reference Figure 1 , Figure 4 As shown, in some embodiments, the main body 10 has a protruding portion 14 , and the protruding portion 14 is at least partially configured as the collecting portion 12 .

[0072] The raised portion 14 is further provided with a first vibration surface 141, a second vibration surface 142 and a third vibration surface 143, which are configured as the vibration generating portion 11, and any two of the first vibration surface 141, the second vibration surface 142 and the third vibration surface 143 are perpendicular to each other. By providing the first vibration surface 141, the second vibration surface 142 and the third vibration surface 143, and any two of the first vibration surface 141, the second vibration surface 142 and the third vibration surface 143 are perpendicular to each other, it is convenient for the hammer to apply forces in the three directions of X, Y and Z, and it is convenient for the user to perform tests in the three directions of X, Y and Z.

[0073] In the related art, the inner wall of the mounting bracket has a complex shape and it is difficult to find a striking point. The utility model provides a first vibration surface 141, a second vibration surface 142 and a third vibration surface 143 that are perpendicular to each other, thereby facilitating the user to perform tests in the three directions of X, Y and Z.

[0074] Combine the following Figures 1 to 7 , describing a specific embodiment of the detection auxiliary device 100 of the present utility model.

[0075] A detection auxiliary device 100 includes: a main body 10 , a vibration transmission component 20 and an adjustment component 30 .

[0076] A suspension sleeve bracket 200 is provided on the vehicle body 1000 , and the suspension sleeve bracket 200 is used to connect the engine, so as to fix the engine on the vehicle body 1000 .

[0077] The main body 10 is constructed as a truncated cone, and is provided with a receiving groove 13. There are three receiving grooves 13, and the three receiving grooves 13 are arranged at intervals along the circumferential direction of the main body 10. The receiving grooves 13 extend along the axial direction of the main body 10, and the distance between the receiving groove 13 and the center line of the main body 10 gradually increases in the axial direction of the main body 10. The groove wall of the receiving groove 13 is constructed as a positioning surface 131. The main body 10 has a protruding portion 14, and the protruding portion 14 has a first vibration surface 141, a second vibration surface 142 and a third vibration surface 143. Any two of the first vibration surface 141, the second vibration surface 142 and the third vibration surface 143 are perpendicular to each other. The protruding portion 14 is partially constructed as a collecting portion 12, and the collecting portion 12 is used to install a sensing component to collect vibration frequency response information and obtain the characteristics of the suspended sleeve bracket 200.

[0078] There are multiple vibration conductors 20, including: a first vibration conductor 21, a second vibration conductor 22, and a third vibration conductor 23. The first vibration conductor 21, the second vibration conductor 22, and the third vibration conductor 23 are evenly spaced and arranged along the circumferential direction of the main body 10. Part of the vibration conductor 20 is configured as a slider 24, which is slidably matched with the receiving groove 13, and the positioning surface 131 is at least partially located on the side of the slider 24 away from the center line.

[0079] The adjustment assembly 30 includes an adjustment member 31 and a pushing member 32 .

[0080] The blocking portion 311 is disposed on a side of the pushing member 32 facing away from the main body 10 .

[0081] The threaded connection portion 312 passes through the pushing member 32 and is connected to the blocking portion 311 , and the threaded connection portion 312 is threadedly connected to the main body 10 .

[0082] The operating portion 313 is disposed at one end of the threaded connection portion 312 away from the blocking portion 311 , and the operating portion 313 is located at a side of the main body 10 away from the vibration transmission component 20 .

[0083] The pushing member 32 is disposed on a side of the vibration transmission member 20 away from the main body 10 , and the pushing member 32 is sleeved on the threaded connection portion 312 to push the vibration transmission member 20 to move toward the direction where the main body 10 is located.

[0084] The rotating operation part 313 drives the pusher 32 sleeved on the threaded connection part 312 to move horizontally, and the pusher 32 moves horizontally to push the three vibration transmission members 20 to slide along the receiving groove 13 on the main body 10. In actual measurement, when the vibration transmission member 20 slides in the slide groove along the ascending direction, the rotation radius of the multiple vibration transmission members 20 gradually increases until the contact surface 25 of the vibration transmission member 20 is clamped on the inner wall surface of the suspension sleeve bracket 200.

[0085] Advantages of the utility model: 1. The structure of the detection auxiliary device 100 can accurately and conveniently measure the dynamic stiffness of the suspension sleeve bracket 200; 2. The structural design of the detection auxiliary device 100 is exquisite and innovative; 3. The structural design of the detection auxiliary device 100 is simple and highly universal. By adjusting the vibration transmission member 20, the dynamic stiffness of the suspension sleeve bracket 200 with different diameters and widths can be measured. 4. Good ductility. Through this device, not only the dynamic stiffness can be measured, but also the transfer functions such as NTF and VTF can be measured.

[0086] Other structures and operations of the detection auxiliary device 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0087] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0088] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A detection auxiliary device (100), characterized in that: include: A main body (10), wherein a vibration generating part (11) is provided on the main body (10); A vibration transmission member (20), the vibration transmission member (20) being arranged on the main body (10), the vibration transmission member (20) having a contact surface (25), the contact surface (25) being used for contacting the inner wall surface of a suspension sleeve bracket (200) on the vehicle body (1000) so as to transmit the vibration of the vibration generating part (11) to the suspension sleeve bracket (200); wherein, The main body (10) is also provided with a collecting part (12), and the collecting part (12) is used to install a sensing part to collect vibration frequency response information and obtain the characteristics of the suspended sleeve bracket (200).

2. The detection auxiliary device (100) according to claim 1, characterized in that: There are a plurality of vibration conductors (20), and the plurality of vibration conductors (20) are arranged at intervals along the circumferential direction of the main body (10); wherein: The vibration conducting member (20) is movably arranged on the main body (10) so as to change the distance between a plurality of the vibration conducting members (20).

3. The detection auxiliary device (100) according to claim 2, characterized in that: The vibration conductors (20) are multiple, and the multiple vibration conductors (20) include a first vibration conductor (21) and a second vibration conductor (22). The first vibration conductor (21) and the second vibration conductor (22) are arranged at intervals along the circumferential direction of the main body (10). The first vibration conductor (21) has a first contact surface (211) for abutting against the inner wall surface, and the second vibration conductor (22) has a second contact surface (221) for abutting against the inner wall surface. The vibration transmission component (20) is movably disposed on the main body (10) to change the distance between the first contact surface (211) and the second contact surface (221).

4. The detection auxiliary device (100) according to claim 3, characterized in that: The plurality of vibration conductors (20) further include: a third vibration conductor (23); the first vibration conductor (21), the second vibration conductor (22) and the third vibration conductor (23) are evenly spaced and arranged along the circumferential direction of the main body (10).

5. The detection auxiliary device (100) according to claim 2, characterized in that: The main body (10) is provided with a first connection portion, and the vibration conductor (20) has a second connection portion, the second connection portion is connected to the first connection portion, and the distance between the first connection portion and the center line of the main body (10) gradually increases along the axial direction of the main body (10).

6. The detection auxiliary device (100) according to claim 5, characterized in that: One of the first connection portion and the second connection portion is configured as a receiving groove (13), and the other is configured as a sliding block (24), and the sliding block (24) is slidably matched with the receiving groove (13); wherein, The groove wall of the accommodating groove (13) is configured as a positioning surface (131), and the positioning surface (131) is at least partially located on a side of the sliding block (24) away from the center line.

7. The detection auxiliary device (100) according to claim 2, characterized in that: It also comprises an adjustment component (30), the adjustment component (30) being movably arranged on the main body (10), and the adjustment component (30) being connected to the vibration transmission component (20) to drive the vibration transmission component (20).

8. The detection auxiliary device (100) according to claim 7, characterized in that: The adjustment component (30) comprises: An adjusting member (31), the adjusting member (31) being movably arranged on the main body (10); A pushing member (32), the pushing member (32) being arranged on a side of the vibration transmitting member (20) away from the main member (10), and the pushing member (32) being connected to the adjusting member (31) so as to push the vibration transmitting member (20) to move in the direction where the main member (10) is located.

9. The detection auxiliary device (100) according to claim 8, characterized in that: The adjusting member (31) comprises: a blocking portion (311), the blocking portion (311) being arranged on a side of the pushing member (32) facing away from the main body member (10); a threaded connection portion (312), the threaded connection portion (312) passing through the pushing member (32) to connect to the blocking portion (311), and the threaded connection portion (312) is threadedly connected to the main body (10); An operating portion (313), wherein the operating portion (313) is disposed at an end of the threaded connection portion (312) away from the blocking portion (311), and the operating portion (313) is located on a side of the main body (10) away from the vibration transmission component (20).

10. The detection auxiliary device (100) according to any one of claims 1 to 9, characterized in that: The main body (10) has a protrusion (14), and the protrusion (14) is at least partially configured as the collecting portion (12); wherein, The raised portion (14) is further provided with a first vibration surface (141), a second vibration surface (142) and a third vibration surface (143); the first vibration surface (141), the second vibration surface (142) and the third vibration surface (143) are configured as the vibration generating portion (11); any two of the first vibration surface (141), the second vibration surface (142) and the third vibration surface (143) are perpendicular to each other.

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