Testing device for researching frictional vibration noise of elastomer material

Abstract

The invention relates to the technical field of elastomer materials, in particular to a test device for researching the friction vibration noise of an elastomer material, which comprises a mounting rack, and the mounting rack is provided with a driving mechanism for linearly moving to be in contact with an elastic material sample and a plurality of clamping mechanisms for clamping the elastic material sample; the clamping mechanism comprises a mounting rod, the mounting rod is in sliding fit with the mounting frame, a plurality of clamping plates are arranged on the mounting rod, and the elastic material samples are located between the adjacent clamping plates; a bending adjusting mechanism for adjusting the bending angle of the elastic material sample is arranged on one side, far away from the elastic material sample, of the clamping plate; the clamping mechanism and the bending adjusting mechanism guarantee the stability and controllability of friction force application during repeated measurement, and ensure the accuracy and reliability of measurement results.

Description

Technical Field

[0001] The invention relates to the technical field of elastomer materials, and in particular to a test device for studying friction vibration noise of elastomer materials. Background Art

[0002] In the field of materials science and engineering, studying the vibration noise after friction of elastic materials can help to gain a deeper understanding of the performance and behavior of materials, and studying vibration noise can provide reference value for the development and application of new materials.

[0003] Due to the microscopic irregularities, nonlinear characteristics and resonance effects of elastic materials, when friction occurs, surface features undergo stress or displacement changes, generating friction noise. Existing vibration noise measurement methods usually use the mass load method to measure, applying a certain mass load to the material to be tested and applying motion changes to excite its vibration to meet the needs of experimental data collection.

[0004] However, in the measurement process of the mass load method, in addition to the interference of external factors such as temperature, humidity and external noise, it is also related to factors such as material inhomogeneity and boundary conditions of elastic materials. For example, inhomogeneities such as composition, structure and density will lead to attenuation during ultrasonic transmission, affecting the inaccuracy of the measurement results; changes in boundary conditions such as fixing methods and support conditions will affect the vibration mode and frequency effect, leading to differences in measurement results, and multiple repeated measurements are required to ensure the accuracy of the measurement results. Therefore, the present invention provides a test device that can repeatedly measure friction vibration noise, ensure the stability and controllability of friction force application, and ensure the stability and consistency of measurement results. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a test device for studying the friction vibration noise of elastomeric materials, which is used to ensure the stability and controllability of the friction force applied during repeated measurements, and to ensure the accuracy and reliability of the measurement results.

[0006] In order to achieve the above-mentioned object, the technical solution of the present invention is as follows: a test device for studying friction vibration noise of an elastic material, comprising a mounting frame, on which a driving mechanism for linear movement to contact an elastic material sample and a plurality of clamping mechanisms for clamping the elastic material sample are provided; The clamping mechanism includes a mounting rod, which is slidably matched with the mounting frame. A plurality of clamping plates are arranged on the mounting rod, and the elastic material sample is located between adjacent clamping plates; and a bending adjustment mechanism for adjusting the bending angle of the elastic material sample is arranged on the side of the clamping plate away from the elastic material sample.

[0007] The technical principle of the above scheme is as follows: first, the elastic material sample is clamped by a clamping mechanism to ensure stability during the test, and then the driving mechanism is used to move the elastic material sample in a straight line to repeatedly rub the elastic material sample to generate noise. At the same time, the deformation of the elastic material sample is controlled by the bending adjustment mechanism to determine the changes in measurement parameters of the elastic material sample at different bending angles.

[0008] The above scheme has the following beneficial effects: 1. This solution uses a clamping mechanism to adaptively clamp elastic material samples to meet the testing needs of different elastic material samples and improve the applicability of the device.

[0009] 2. This scheme combines the use of a bending adjustment mechanism to change the elastic material sample and the external conditions of the elastic material sample to provide measurements of the elastic material sample under a variety of experimental conditions, thereby providing conditions for further understanding the material properties of the elastic material sample.

[0010] 3. This scheme uses multiple clamping plates to clamp the elastic material samples. In addition to providing stability during the experiment, it can also form a number of samples of different lengths to obtain, so as to reduce the interference of material heterogeneity and boundary conditions of elastic materials on the measurement results, ensure the stability and controllability of friction force during repeated measurements, and ensure the accuracy and reliability of the measurement results.

[0011] Furthermore, the driving mechanism comprises a driving member, which is a ball screw mechanism. A slot is provided on a nut seat of the driving member, and a contact layer is slidably fitted in the slot.

[0012] Beneficial effect: By changing the contact layer to form contact conditions in different situations, the elastic material sample can be brought into contact with different objects, and the measurement results in different situations can be understood.

[0013] Further, the clamping plate includes a first plate and a second plate, the center of the first plate is fixedly connected to the mounting rod, the center of the second plate is fixedly connected to a rotating shaft, the rotating shaft passes through the mounting rod, and the rotating shaft and the mounting rod are rotatably matched; A pressure mechanism for adjusting the load force of the elastic material sample is provided on the side of the clamping plate away from the elastic material sample, and the pressure mechanism includes a pull rope fixedly connected to the second plate, and the pull rope is located on the side of the second plate away from the driving mechanism; and one end of the pull rope away from the second plate passes through the slide groove, and a hook is fixedly connected below the pull rope, and a number of weights are clamped on the hook.

[0014] Beneficial effect: The gravity of the weight on the hook drives the second plate to rotate around the center of the mounting rod, so that the second plate away from the end of the pull rope clamps the elastic material sample to form loads of different sizes, so as to obtain the influence of different load conditions on the measurement parameters of the elastic material sample. At the same time, by changing the load force at different positions, it is convenient to measure the changes in measurement parameters of the same elastic material sample subjected to the same load force or different load forces at different positions.

[0015] Furthermore, the bending adjustment mechanism includes a plurality of slide grooves provided on the mounting frame, and the arrangement direction of the slide grooves is perpendicular to the movement direction of the driving mechanism, the distances between adjacent slide grooves are consistent, and the slide grooves are aligned on one side close to the driving mechanism; Slide blocks are slidably matched in the slide grooves, and the centers of the slide blocks are fixedly connected to the mounting rods.

[0016] Beneficial effects: The slider moves in the slide groove, so that the clamping plate is kept in a direction perpendicular to the movement direction of the driving mechanism, which makes it easy to adjust the contact depth between the elastic material sample and the contact layer, and also makes it easy to adjust the rotation angle of the elastic material sample driven by the clamping plate by changing the position of different slide grooves, thereby controlling the elastic material sample to form bending angles of different degrees to determine the measurement data when measuring under different bending conditions.

[0017] Furthermore, a clamping head of different shapes is threadedly connected to one side of the clamping plate close to the driving mechanism, and the clamping head matches the shape of the elastic material sample.

[0018] Beneficial effects: Usually, elastic material samples are long strips and cylinders. By replacing the clamping heads with different shapes, the contact area is increased or the surface shape of the elastic material sample is adapted to improve the stability of the clamping plate during the clamping process. The elastic material sample is fixed by the clamping mechanism, which facilitates the measurement of the elastic material sample under different test conditions.

[0019] Furthermore, a nut is rotatably fitted at the center of the first plate, a thread groove is formed on the mounting rod, and the nut is threadedly connected to the thread groove.

[0020] Beneficial effect: Through the threaded connection between the nut and the mounting rod, the first plate can be moved vertically on the mounting plate by rotating the nut on the mounting rod, so as to adjust the position of the first plate on the mounting rod, adapt to the adaptive adjustment of elastic material samples of different heights, and expand the use scenarios of the test device.

[0021] Furthermore, the bending adjustment mechanism also includes an indicator line located on the top of the first plate, and the indicator line is arranged in a ring shape with the mounting rod as the center.

[0022] Beneficial effect: By displaying the indicator line to show the angle change of adjacent clamping rods, the angle change of the elastic material sample during the bending process is determined, so as to facilitate subsequent comparative experiments on different elastic material samples at the same angle, ensure the consistency of measurement conditions, and achieve repeated measurements.

[0023] Furthermore, the bending adjustment mechanism also includes an elastic plate, a mounting groove connected to the slide groove is opened in the mounting frame, and the height of the mounting groove is smaller than the height of the slide groove; the elastic plate is located in the mounting groove, and the elastic plate and the mounting groove are slidably matched; A clamping ring is fixedly connected to the side of the slider away from the driving mechanism, and the clamping ring is gap-matched with the elastic plate; and a plurality of positioning holes are opened on the mounting frame, and the positioning holes are symmetrically arranged with the slide groove as the center, and positioning bolts are arranged in the positioning holes, and the positioning bolts are threadedly connected to the top of the slider.

[0024] Beneficial effects: The elastic force formed by the elastic plate facilitates the subsequent pushing of the slider for resetting; at the same time, the deformation of the elastic plate is used to effectively control the bending angle of the elastic material sample, thereby reducing the breakage of the elastic material sample due to excessive bending angle, so as to determine the experimental parameters of the elastic material sample within a reasonable range.

[0025] Furthermore, a radio mechanism is provided between adjacent clamping plates, and the radio mechanism includes a first arc plate and a second arc plate, both of which are semicircular arc plates, and the first arc plate is fixedly connected to the mounting rod, and the first arc plate is symmetrically arranged with the mounting rod as the center; the second arc plate is respectively fixedly connected to the first plate and the second plate, and the first arc plate is located between adjacent second arc plates, and both sides of the first arc plate are respectively against the adjacent second arc plates.

[0026] Beneficial effect: A circular space is formed by the first arc plate and the second arc plate, so that the noise generated during the experiment of the elastic material sample can be collected and processed more clearly, thereby improving the accuracy and reliability of subsequent measurement results.

[0027] Furthermore, the second arc-shaped plate is hinged to the second plate, and a suction cup is fixedly connected to one side of the second arc-shaped plate close to the elastic material sample.

[0028] Beneficial effect: By rotating the second arc-shaped plate, the first arc-shaped plate and the second arc-shaped plate can still form a circular space after the second plate rotates, so as to continuously collect the vibration noise during the deformation process of the elastic material sample.

[0029] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 An axonometric diagram of an embodiment of a test device for studying friction vibration noise of an elastomeric material according to the present invention; Figure 2 A top view of an embodiment of a test device for studying friction vibration noise of an elastomeric material according to the present invention; Figure 3 for Figure 2 Sectional view along AA direction; Figure 4 for Figure 2 Schematic diagram of the deformation of a sample of a mesoelastic material; Figure 5 for Figure 3 Schematic diagram of the deformation of the second plate.

[0031] The figure marks in the drawings of the specification include: 1. mounting frame; 11. slide groove; 2. motor; 21. screw rod; 22. nut seat; 23. contact layer; 3. mounting rod; 31. indicator line; 4. elastic material sample; 5. slider; 51. first plate; 52. second plate; 53. pull rope; 54. weight; 6. elastic plate; 61. mounting groove; 62. positioning hole; 7. first arc plate; 71. second arc plate. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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.

[0035] The following is further described in detail through specific implementation methods: Embodiment 1:

[0036] As attached Figures 1 to 5 As shown: a test device for studying the friction vibration noise of elastomeric materials, including a mounting frame 1, on which is provided a driving mechanism for linear movement and contacting an elastic material sample 4, the driving mechanism including a driving member, the driving member being a ball screw 21 mechanism, the driving member including a motor 2, a screw 21 and a nut seat 22, the motor 2 being fixedly connected to the mounting frame 1 with bolts, the output shaft of the motor 2 being coaxially clamped with the screw 21, the nut seat 22 being slidably fitted with the screw 21; a slot is provided on the nut seat 22 of the driving member, a contact layer 23 is slidably fitted in the slot, in this embodiment, the contact layer 23 includes but is not limited to a metal block, a rubber block, a smooth lens and a stone.

[0037] It also includes several clamping mechanisms for clamping the elastic material sample 4, the clamping mechanisms include a mounting rod 3, the mounting rod 3 is slidably matched with the mounting frame 1, and a plurality of clamping plates are provided on the mounting rod 3. The elastic material sample 4 is located between adjacent clamping plates. A clamping head of different shapes (not shown in the figure) is threadedly connected to one side of the clamping plate close to the driving mechanism. The clamping head matches the shape of the elastic material sample 4. In this embodiment, the shape of the clamping head includes but is not limited to L-shaped, concave and conical. The clamping plate includes a first plate 51 and a second plate 52. The center of the first plate 51 is welded to the mounting rod 3, and a rotating shaft is welded to the center of the second plate 52. The rotating shaft passes through the mounting rod 3, and the rotating shaft rotates with the mounting rod 3. A rotating cavity is opened at the center of the second plate 52, and the mounting rod 3 and the rotating shaft are located in the rotating cavity; a pressurizing mechanism for adjusting the load force of the elastic material sample 4 is provided on the side of the clamping plate away from the elastic material sample 4, and the pressurizing mechanism includes a pull rope 53 clamped with the second plate 52, and the pull rope 53 is located on the side of the second plate 52 away from the driving mechanism; and one end of the pull rope 53 away from the second plate 52 passes through the slide groove 11, and a hook is fixedly connected to the bottom of the pull rope 53, and a number of weights 54 are clamped on the hook.

[0038] A bending adjustment mechanism for adjusting the bending angle of the elastic material sample 4 is provided on the side of the clamping plate away from the elastic material sample 4. The bending adjustment mechanism includes a plurality of slide grooves 11 provided on the mounting frame 1. The arrangement direction of the slide grooves 11 is perpendicular to the movement direction of the driving mechanism. The distances between adjacent slide grooves 11 are consistent. The slide grooves 11 are aligned on one side close to the driving mechanism. Slide blocks 5 are slidably fitted in the slide grooves 11. The centers of the slide blocks 5 are welded to the mounting rods 3.

[0039] The specific implementation process is as follows: first, the clamping mechanism is reset, and the contact depth between the elastic material sample 4 and the contact layer 23 is adjusted by moving the slider 5 in the slide groove 11. At the same time, the rotation angle of the clamping plate to drive the elastic material sample 4 to move is adjusted by changing the position of different slide grooves 11, so as to control the elastic material sample 4 to form different degrees of bending angles to determine the measurement data when measuring under different bending conditions. At the same time, according to the surface shape of the elastic material sample 4, the clamping head of different shapes is replaced to increase the contact area or adapt to the surface shape of the elastic material sample 4, so as to improve the stability of the clamping plate during the clamping process.

[0040] After the positions of the clamping plates are fixed (position changes bring about changes in the bending angle of the elastic material sample 4), the number of weights 54 is adjusted, and the gravity of the weights 54 on the hook drives the second plate 52 to rotate around the center of the mounting rod 3. The elastic material sample 4 is supported by the first plate 51, and the second plate 52 is clamped on the elastic material sample 4 at one end away from the pull rope 53 to form loads of different sizes, so as to obtain the influence of different load conditions on the measurement parameters of the elastic material sample 4. At the same time, by changing the load force at different positions, it is convenient to measure the changes in the measurement parameters of the same elastic material sample 4 subjected to the same load force or different load forces at different positions.

[0041] The motor 2 is started, and the motor 2 drives the screw rod 21 to rotate, so as to push the nut seat 22 on the screw rod 21 to move by itself, so that the contact layer 23 on the nut seat 22 contacts the elastic material sample 4, so as to determine the measurement results of the elastic material sample 4 under different conditions. Since the elastic material sample 4 is divided by multiple clamping plates, samples of different lengths are formed for measurement, and the measurement results of different parts are determined, so as to reduce the interference of the material non-uniformity and the boundary conditions of the elastic material on the measurement results, ensure the stability and controllability of the friction force applied during repeated measurements, and ensure the accuracy and reliability of the measurement results.

[0042] Embodiment 2:

[0043] The difference from the first embodiment is that a nut is rotatably fitted at the center of the first plate 51 , a thread groove is formed on the mounting rod 3 , and the nut is threadedly connected to the thread groove.

[0044] The specific implementation process is as follows: During use, the nut is rotated to move along the texture of the thread groove, so that the first plate 51 moves vertically on the mounting plate to adjust the position of the first plate 51 on the mounting rod 3, and adapt to the adaptive adjustment of elastic material samples 4 of different heights to expand the use scenarios of the test device.

[0045] Embodiment 3:

[0046] The difference from the second embodiment is that the bending adjustment mechanism further comprises an indication line 31 located on the top of the first plate 51 , and the indication line 31 is arranged in a ring shape with the mounting rod 3 as the center.

[0047] The specific implementation process is as follows: when the clamping plate changes, the indicator line 31 is displayed to point to the corresponding clamping plate to determine the angle change of the adjacent clamping rods and the angle change of the elastic material sample 4 during the bending process, so as to facilitate subsequent comparative experiments on different elastic material samples 4 at the same angle, ensure the consistency of measurement conditions, and achieve repeated measurements.

[0048] Embodiment 4:

[0049] The difference from Example 3 is that the bending adjustment mechanism also includes an elastic plate 6, and a mounting groove 61 connected to the slide groove 11 is opened in the mounting frame 1, and the height of the mounting groove 61 is less than the height of the slide groove 11; the elastic plate 6 is located in the mounting groove 61, and the elastic plate 6 and the mounting groove 61 are slidably matched; a retaining ring is welded on the side of the slider 5 away from the driving mechanism, and the retaining ring and the elastic plate 6 are clearance-matched; and a plurality of positioning holes 62 are opened on the mounting frame 1, and the positioning holes 62 are symmetrically arranged with the slide groove 11 as the center, and positioning bolts are provided in the positioning holes 62, and the positioning bolts are threadedly connected to the top of the slider 5.

[0050] The specific implementation process is as follows: first, the elastic plate 6 is placed in the clamping ring through the installation groove 61. In normal state, the elastic plate 6 is limited to keep the adjacent clamping plates on the same horizontal line to achieve the position alignment of the clamping plates, so that the initial position of the elastic material sample 4 is consistent with the driving mechanism, which is convenient for friction. Then, the elastic force formed by the elastic plate 6 is used to facilitate the subsequent pushing of the slider 5 for reset; at the same time, the deformation of the elastic plate 6 is used to effectively control the bending angle of the elastic material sample 4, reduce the breakage of the elastic material sample 4 due to excessive bending angle, and determine the experimental parameters of the elastic material sample 4 within a reasonable range. In this embodiment, the elastic material sample 4 can also be used as an elastic plate to measure the maximum deformation amount or deformation angle of the elastic material sample 4.

[0051] Embodiment 5:

[0052] The difference from Example 4 is that a radio mechanism is provided between adjacent clamping plates, and the radio mechanism includes a first arc plate 7 and a second arc plate 71, both of which are semicircular arc plates, and the first arc plate 7 is welded to the mounting rod 3, and the first arc plate 7 is symmetrically arranged with the mounting rod 3 as the center; one piece of the second arc plate 71 is fixedly connected to the first plate 51, and the other piece of the second arc plate 71 is hinged to the second plate 52, and a suction cup is welded on the side of the second arc plate 71 close to the elastic material sample 4, and the first arc plate 7 is located between adjacent second arc plates 71, and the two sides of the first arc plate 7 are respectively against the adjacent second arc plates 71.

[0053] The specific implementation process is as follows: when the first plate 51 and the second plate 52 are approaching, the second curved plate 71 is first fixed on the surface of the elastic material sample 4 by a suction cup, and the gap between the first curved plate 7 and the second curved plate 71 is used to make the first curved plate 7 and the second curved plate 71 form a circular space, so as to collect and process the noise during the experiment of the elastic material sample 4, so as to collect and process the noise during the experiment more clearly, thereby improving the accuracy and reliability of subsequent measurement results. At the same time, by rotating the second curved plate 71, the second plate 52 is kept in a circular space after the rotation, so as to continuously collect the vibration noise during the deformation of the elastic material sample 4.

[0054] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A test device for studying friction vibration noise of elastomeric materials, characterized in that: The mounting frame (1) is provided with a driving mechanism for linearly moving to contact an elastic material sample (4) and a plurality of clamping mechanisms for clamping the elastic material sample (4); The clamping mechanism comprises a mounting rod (3), the mounting rod (3) being slidably matched with the mounting frame (1), a plurality of clamping plates being provided on the mounting rod (3), and the elastic material sample (4) being located between adjacent clamping plates; and a bending adjustment mechanism for adjusting the bending angle of the elastic material sample (4) being provided on a side of the clamping plate away from the elastic material sample (4).

2. The test device for studying friction vibration noise of elastomeric materials according to claim 1, characterized in that: The driving mechanism comprises a driving member, which is a ball screw (21) mechanism. A slot is formed on a nut seat (22) of the driving member, and a contact layer (23) is slidably fitted in the slot.

3. The test device for studying friction vibration noise of elastomeric materials according to claim 2, characterized in that: The clamping plate comprises a first plate (51) and a second plate (52); the center of the first plate (51) is fixedly connected to the mounting rod (3); the center of the second plate (52) is fixedly connected to a rotating shaft, the rotating shaft passes through the mounting rod (3), and the rotating shaft and the mounting rod (3) are rotatably matched; A pressure mechanism for adjusting the load force of the elastic material sample (4) is provided on the side of the clamping plate away from the elastic material sample (4), the pressure mechanism comprising a pull rope (53) fixedly connected to the second plate (52), the pull rope (53) being located on the side of the second plate (52) away from the driving mechanism; and one end of the pull rope (53) away from the second plate (52) passes through the slide groove (11), a hook is fixedly connected below the pull rope (53), and a plurality of weights (54) are clamped on the hook.

4. The test device for studying friction vibration noise of elastomeric materials according to claim 3, characterized in that: The bending adjustment mechanism comprises a plurality of slide grooves (11) provided on the mounting frame (1), wherein the arrangement direction of the slide grooves (11) is perpendicular to the movement direction of the driving mechanism, the distances between adjacent slide grooves (11) are consistent, and the slide grooves (11) are aligned on one side close to the driving mechanism; Slide blocks (5) are slidably fitted in the slide grooves (11), and the centers of the slide blocks (5) are fixedly connected to the mounting rods (3).

5. The test device for studying friction vibration noise of elastomeric materials according to claim 4, characterized in that: A clamping head of different shapes is threadedly connected to one side of the clamping plate close to the driving mechanism, and the clamping head matches the shape of the elastic material sample (4).

6. The test device for studying friction vibration noise of elastomeric materials according to claim 5, characterized in that: A nut is rotatably fitted at the center of the first plate (51), a thread groove is formed on the mounting rod (3), and the nut is threadedly connected to the thread groove.

7. The test device for studying friction vibration noise of elastomeric materials according to claim 6, characterized in that: The bending adjustment mechanism further comprises an indication line (31) located on the top of the first plate (51), wherein the indication line (31) is arranged in a ring shape with the mounting rod (3) as the center.

8. The test device for studying friction vibration noise of elastomeric materials according to claim 7, characterized in that: The bending adjustment mechanism further comprises an elastic plate (6); a mounting groove (61) communicating with the slide groove (11) is formed in the mounting frame (1); the height of the mounting groove (61) is smaller than the height of the slide groove (11); the elastic plate (6) is located in the mounting groove (61), and the elastic plate (6) and the mounting groove (61) are slidably matched; A clamping ring is fixedly connected to the side of the slider (5) away from the driving mechanism, and the clamping ring is clearance-matched with the elastic plate (6); and a plurality of positioning holes (62) are opened on the mounting frame (1), and the positioning holes (62) are symmetrically arranged with the slide groove (11) as the center. Positioning bolts are arranged in the positioning holes (62), and the positioning bolts are threadedly connected to the top of the slider (5).

9. The test device for studying friction vibration noise of elastomeric materials according to claim 8, characterized in that: A radio mechanism is provided between adjacent clamping plates, the radio mechanism comprising a first arc plate (7) and a second arc plate (71), both of which are semicircular arc plates, the first arc plate (7) being fixedly connected to the mounting rod (3), the first arc plate (7) being symmetrically arranged with the mounting rod (3) as the center; the second arc plate (71) being fixedly connected to the first plate (51) and the second plate (52), respectively, the first arc plate (7) being located between adjacent second arc plates (71), and both sides of the first arc plate (7) being respectively abutted against adjacent second arc plates (71).

10. The test device for studying friction vibration noise of elastic materials according to claim 9, characterized in that: The second arc-shaped plate (71) is hinged to the second plate (52), and a suction cup is fixedly connected to a side of the second arc-shaped plate (71) close to the elastic material sample (4).

Images