CN217465977U - Sealing strip abnormal sound displacement testing device - Google Patents
Sealing strip abnormal sound displacement testing device Download PDFInfo
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- CN217465977U CN217465977U CN202220734584.5U CN202220734584U CN217465977U CN 217465977 U CN217465977 U CN 217465977U CN 202220734584 U CN202220734584 U CN 202220734584U CN 217465977 U CN217465977 U CN 217465977U
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Abstract
The application discloses a sealing strip abnormal sound displacement testing device which comprises a supporting frame, wherein a gap is formed in the middle of the supporting frame; the matching component is positioned in the middle of the gap and is connected with the supporting frame; the mounting assembly is positioned at the lower part of the gap and is connected with the mounting surface of the sealing strip, and the friction surface of the sealing strip is contacted with the matching assembly and is extruded; the power device is connected with the mounting assembly and used for pushing the mounting assembly to extend backwards; the microphone is arranged on the supporting frame and close to the matching component, the distance between the microphone and the friction surface of the sealing strip and the contact center position of the matching component is 10cm-12cm, and the data acquisition device is respectively connected with the microphone and the power device; and the data processing equipment is connected with the data acquisition device. The device can be used for testing the minimum abnormal sound displacement of the sealing strip quickly and accurately, can be used for selecting the sealing strip in the early stage, and avoids the abnormal sound problem of the sealing strip of the whole vehicle in the later stage.
Description
Technical Field
The utility model relates to a technical field of the minimum abnormal sound displacement test of sealing strip particularly relates to sealing strip abnormal sound displacement test device.
Background
In the field of automobile research and development, tests on performances of automobile accessories are few and high in cost, abnormal sound tests of automobile sealing strips are also a big problem, and the minimum abnormal sound displacement of the sealing strips is the displacement of a twisting section of the sealing strips before sliding and is a key parameter of the abnormal sound performance of the sealing strips. OEMs in the existing industry gradually pay attention to the key parameter of minimum abnormal sound displacement of the sealing strip, but no mature testing method exists.
SUMMERY OF THE UTILITY MODEL
It is an object of the present application to overcome the above problems or to at least partially solve or alleviate the above problems.
The technical scheme of the utility model a sealing strip abnormal sound displacement testing arrangement is provided, include: a support frame having a gap at a middle portion thereof; the matching component is positioned in the middle of the gap and is connected with the supporting frame; the mounting assembly is positioned at the lower part of the gap and is connected with the mounting surface of the sealing strip, and the friction surface of the sealing strip is contacted with the matching assembly and is extruded; the power device is connected with the mounting assembly and used for pushing the mounting assembly to extend backwards; a microphone mounted on the support frame and close to the mating member, the microphone being located at a distance of 10cm to 12cm from a center position where the friction surface of the sealing tape and the mating member are in contact; the data acquisition device is respectively connected with the microphone and the power device; and the data processing equipment is connected with the data acquisition device.
The sealing strip abnormal sound displacement testing device comprises a supporting frame, a matching assembly, a mounting assembly, a microphone, a data acquisition device and data processing equipment, wherein a gap is formed in the middle of the supporting frame, the matching assembly is located in the middle of the gap and connected with the supporting frame, the mounting assembly is located at the lower portion of the gap and connected with a mounting surface of a sealing strip, a friction surface of the sealing strip is in contact with the matching assembly and is extruded, a power device is connected with the mounting assembly and is used for pushing the mounting assembly to extend backwards so that the sealing strip generates friction noise, the power device comprises a displacement sensor and is used for generating a motion displacement signal, the microphone is mounted on the supporting frame and is close to the matching assembly, the distance between the microphone and the center position where the friction surface of the sealing strip is in contact with the matching assembly is 10cm-12cm and is used for converting the friction noise into a friction noise digital signal, data acquisition device, respectively with the microphone, displacement sensor connects, be used for converting friction noise digital signal and motion displacement signal into friction noise data and motion displacement data, data processing equipment and data acquisition device are connected, when appearing in the analysis friction noise data for the first time and being greater than 0.5 dB's fluctuation, the wave band of the motion displacement data that corresponds is the minimum abnormal sound displacement of sealing strip, test sealing strip minimum abnormal sound displacement that can be quick and accurate through this device, can be used to carry out the lectotype to the sealing strip in earlier stage, avoid the whole car sealing strip abnormal sound problem in later stage.
In addition, the above technical solution of the present invention can also have the following additional technical features:
in the above technical solution, the support frame includes: a base plate; a first support structure connected to one side of an upper portion of the base plate; the second supporting structure is connected to the other side of the upper portion of the bottom plate, the second supporting structure and the first supporting structure are arranged oppositely, and the gap is formed between the second supporting structure and the first supporting structure.
In the above technical solution, the second support structure and the first support structure have the same structure: the second support structure comprises: the lower end of the vertical plate is connected with the bottom plate; the first supporting plate is integrally constructed on one side of the rear surface of the vertical plate, and the lower end of the first supporting plate is connected with the bottom plate; the second supporting plate is integrally constructed on the other side of the back of the vertical plate, the lower end of the second supporting plate is connected with the bottom plate, and the second supporting plate and the first supporting plate are symmetrically arranged by taking the vertical plate as a center.
In the technical scheme, the lower end of the first supporting plate is provided with a first folded plate, and the first folded plate is connected with the bottom plate; the lower end of the second supporting plate is provided with a second folded plate, and the second folded plate is connected with the bottom plate; the first supporting plate and the second supporting plate are arranged oppositely.
In the above technical solution, the fitting assembly includes: the first mounting plate is transversely positioned in the middle of the gap and is connected with the support frame; and the opponent panel is arranged below the first mounting plate.
In the above technical solution, the mounting assembly includes: a second mounting plate located laterally below the gap and below the opponent panel; the third mounting plate is vertically positioned at the lower part of the gap, and the upper edge of the third mounting plate is connected with the middle part below the second mounting plate; the clamp is arranged on the upper part of the second mounting plate and comprises a connecting plate and a clamping bulge, and the clamping bulge is integrally constructed in the middle of the upper surface of the connecting plate; the clamping protrusion is connected with the mounting surface of the sealing strip.
In the above technical solution, the power device is an electric sliding table, and the data processing device is a computer or a PC device.
Drawings
Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic front view of a seal strip abnormal sound displacement testing device according to one embodiment of the present application;
FIG. 2 is a flow chart of a method of testing a weatherstrip according to one embodiment of the present application;
fig. 3 is a data diagram of a method of testing a sealing strip.
The labels in the figure are:
1. a support frame; 1-1, a bottom plate; 1-2, a first support structure; 1-3, a second support structure; 1-4, vertical plates; 1-5, a first supporting plate; 1-6, a second support plate; 1-7, a first folded plate; 1-8, a second folded plate;
2. a gap;
3. a mating component; 3-1, a first mounting plate;
4. mounting the component; 4-1, a second mounting plate; 4-2, a third mounting plate; 4-3, clamping;
5. a power plant;
6. a microphone;
7. a data acquisition device;
8. a data processing apparatus.
Detailed Description
The present application will now be described in further detail by way of specific examples with reference to the accompanying drawings. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.
Example 1:
fig. 1 is a schematic front view of a seal strip abnormal sound displacement testing device according to one embodiment of the present application. As shown in fig. 1, in a specific embodiment, the seal strip abnormal sound displacement testing device can generally comprise a supporting frame 1, a gap 2, a matching component 3, a mounting component 4, a power device 5, a microphone 6, a data acquisition device 7 and a data processing device 8.
Specifically, the support frame 1 has a gap 2 in the middle for a space for mounting a mating component 3 and a mounting component 4. The fitting assembly 3 is located in the middle of the gap 2 and is connected with the support frame 1 for fixing the fitting assembly 3. A mounting member 4 is located below the gap 2, the mounting member 4 being attached to the mounting surface of the seal strip, the friction surface of the seal strip being in contact with and pressed against the mating member 3. The power device 5 is connected with the mounting component 4 and used for pushing the mounting component 4 to extend backwards, the microphone 6 is mounted on the supporting frame 1 through a bolt and close to the matching component 3, the distance between the microphone 6 and the friction surface of the sealing strip and the contact center position of the matching component 3 is 10cm-12cm, the data acquisition device 7 is respectively connected with the microphone 6 and the power device 5 through lines, and the data processing equipment 8 is connected with the data acquisition device 7 through lines.
The device can be used for testing the minimum abnormal sound displacement of the sealing strip quickly and accurately, can be used for selecting the sealing strip in the early stage, and avoids the abnormal sound problem of the sealing strip of the whole vehicle in the later stage.
Further, the power device 5 is an electric sliding table, and the data processing device 8 is a computer or a PC device.
Example 2:
as shown in fig. 1, in one embodiment, the features defined in any of the above embodiments and further and optionally are included. The support frame 1 may generally include a base plate 1-1, a first support structure 1-2, and a second support structure 1-3.
Specifically, the base plate 1-1 is horizontally disposed, and the first supporting structure 1-2 is connected to an upper side of the base plate 1-1 to support the fitting assembly 3 and the mounting assembly 4. The second supporting structure 1-3 is connected to the other side of the upper portion of the bottom plate 1-1 for supporting the fitting component 3 and the installation component 4, the second supporting structure 1-3 is arranged opposite to the first supporting structure 1-2, and a gap 2 is formed between the second supporting structure 1-3 and the first supporting structure 1-2 for installing the fitting component 3 and the installation component 4. By mounting the first 1-2 and second 1-3 support structures on the upper part of the base plate 1-1 with the gap 2 in between, it is possible to leave sufficient space for mounting the fitting assembly 3 and the mounting assembly 4, while at the same time better connecting the fitting assembly 3 to the first 1-2 and second 1-3 support structures.
Alternatively, the base plate 1-1 may be a generally rectangular body that may be bolted to a countertop.
Example 3:
as shown in fig. 1, in one embodiment, the features and further and optionally features defined in any of the above embodiments are included. The second support structure 1-3 is structurally identical to the first support structure 1-2, wherein the second support structure 1-3 may generally include vertical plates 1-4, first support plates 1-5, and second support plates 1-6.
Specifically, the lower end of the vertical plate 1-4 is welded or bolted to the bottom plate 1-1, and the vertical plate 1-4 is arranged perpendicular to the bottom plate 1-1, so as to be conveniently connected to the matching component 3. The first supporting plate 1-5 is integrally constructed at the rear side of the vertical plate 1-4, and the lower end of the first supporting plate 1-5 is welded or bolted with the bottom plate 1-1. The second supporting plate 1-6 is integrally constructed at the other side of the back of the vertical plate 1-4, the lower end of the second supporting plate 1-6 is welded or connected with the bottom plate 1-1 through a bolt, and the second supporting plate 1-6 and the first supporting plate 1-5 are symmetrically arranged by taking the vertical plate 1-4 as a center, so that the structure is neat and reasonable in design.
Through the arrangement of the vertical plates 1-4, the first supporting plates 1-5 and the second supporting plates 1-6, the supporting effect is good, and the stability is improved.
Furthermore, the vertical plates 1-4 are rectangular plates, and the first supporting plates 1-5 and the second supporting plates 1-6 are triangular plates, so that the supporting effect is better.
More specifically, the lower end of the first support panel 1-5 has an integral first flap 1-7, and the first flap 1-7 and the bottom panel 1-1 are connected by bolts. The lower end of the second support plate 1-6 is provided with an integrated second flap 1-8, and the second flap 1-8 and the bottom plate 1-1 are connected by bolts. And the first supporting plate 1-5 and the second supporting plate 1-6 are oppositely arranged, so that the structure is neat and reasonable.
The first folded plate 1-7 and the second folded plate 1-8 are arranged, so that the disassembly and the assembly are facilitated, the supporting effect is good, and the stability is improved.
Example 4:
as shown in fig. 1, in one embodiment, the features defined in any of the above embodiments and further and optionally are included.
The mating assembly 3 may generally include a first mounting plate 3-1 and an opponent panel.
Specifically, the first mounting plate 3-1 is transversely located in the middle of the gap 2, the first mounting plate 3-1 is a rectangular plate, one end of the first mounting plate 3-1 is connected with the vertical plate 1-4 of the second support structure 1-3 of the support frame 1 by welding, and one end of the first mounting plate 3-1 is connected with the vertical plate of the first support structure 1-2 of the support frame 1 by welding. The opponent panel is installed under the first installation plate 3-1 by screws, and the opponent panel is contacted with the friction surface of the sealing strip and forms a compression.
More specifically, one side of the first mounting plate 3-1 adjacent to the vertical plate 1-4 of the second support structure 1-3 has a first flange turned upward, and the first flange and the vertical plate 1-4 of the second support structure 1-3 are connected by bolts. One side of the first mounting plate 3-1 close to the vertical plate of the first supporting structure 1-2 is provided with a second folded edge which is turned upwards, and the second folded edge is connected with the vertical plate 1-4 of the second supporting structure 1-3 through a bolt. The first mounting plate 3-1 is convenient to disassemble and assemble by arranging the first folded edge and the second folded edge.
Further, the first mounting plate 3-1 is horizontally arranged, so that the opponent panel can be conveniently mounted.
Further, the opponent panel is a rectangular plate, and the lower surface of the opponent panel is an opponent surface for contacting with the friction surface of the sealing strip.
Example 5:
as shown in fig. 1, in one embodiment, the features defined in any of the above embodiments and further and optionally are included. The mounting assembly 4 may generally include a second mounting plate 4-1, a third mounting plate 4-2, and a clamp 4-3.
Specifically, the second mounting plate 4-1 is transversely located at the lower part of the gap 2 and located below the opponent panel, the third mounting plate 4-2 is vertically located at the lower part of the gap 2, the upper edge of the third mounting plate 4-2 is connected with the middle part of the lower surface of the second mounting plate 4-1 in a welding mode, the clamp 4-3 is installed at the upper part of the second mounting plate 4-1 through a bolt, the clamp 4-3 comprises a connecting plate and clamping protrusions, the clamping protrusions are integrally formed in the middle of the upper surface of the connecting plate, and the clamping protrusions are connected with the mounting surface of the sealing strip.
The clamping bulge of the clamp 4-3 is connected with the sealing strip, so that the installation state of the actual sealing strip can be simulated, and the sealing strip can be tested conveniently.
Further, the second mounting plate 4-1 and the third mounting plate 4-2 are both rectangular bodies, and the widths of the second mounting plate 4-1 and the third mounting plate 4-2 are both smaller than the width of the gap 2, so that the power device 5 has enough space when driving the mounting assembly 4, and the mounting assembly does not scratch and rub against the second supporting structure 1-3 and the first supporting structure 1-2.
Example 6:
FIG. 2 is a flow chart of a method of testing a weatherstrip according to one embodiment of the present application; fig. 3 is a data diagram of a method of testing a sealing strip. As shown in fig. 2 and 3, in a specific embodiment, the method of testing the weatherstrip may generally include an S1 sound attenuation setting step, an S2 mounting step, an S3 data generating step, and an S4 data analyzing step.
S2 installation step:
and connecting the mounting surface of the sealing strip with the clamping protrusion, and enabling the friction surface of the sealing strip to be in contact with the counter panel and form extrusion so as to enable the sealing strip to be in a standard compression load state. The test is carried out by simulating the actual installation state of the sealing strip, so that the test effect is good and accurate.
Wherein, the size of the sealing strip is matched with the size of the clamping protrusion.
S3 data generation step:
the electric sliding table drives the mounting assembly to move forwards, so that the friction surface of the sealing strip and the opponent panel move relatively, and friction noise is generated.
The microphone converts the friction noise into a friction noise digital signal;
a displacement sensor of the electric sliding table generates a movement displacement signal of the electric sliding table;
and the data acquisition device simultaneously receives the friction noise digital signal and the motion displacement signal and converts the signals into friction noise data and motion displacement data.
A data processing device receives the frictional noise data and the motion displacement data.
The distance of relative movement between the sealing strip and the opponent panel is within the bearable range of the sealing strip and cannot exceed the elastic range of the sealing strip, so that the sealing strip is prevented from being broken.
Further, the movement speed of the electric sliding table is uniform speed movement.
Preferably, the electric sliding table is a low-noise electric sliding table.
Preferably, the data acquisition device is respectively connected with the microphone and the displacement sensor through connecting wires to realize the reception of the friction noise digital signal and the movement displacement signal and improve the receiving stability.
Preferably, the data processing equipment is connected with the data acquisition device through a line or a wireless network and is used for receiving the friction noise digital signal and stabilizing the motion displacement signal.
S4 data analysis step:
when the data processing equipment analyzes the fluctuation of more than 0.5dB in the friction noise data for the first time, the wave band of the corresponding motion displacement data is the minimum abnormal sound displacement of the sealing strip.
In this embodiment, the method further includes an S1 noise elimination setting step, where the S1 noise elimination setting step is set before the S2 mounting step, and the whole weatherstrip abnormal sound displacement testing device is set inside the anechoic chamber to reduce other noises and improve the accuracy of the test.
This technical scheme passes through the noise and the displacement condition of sealing strip abnormal sound displacement testing arrangement test sealing strip, when the first fluctuation of sealing strip noise increased 0.5dB, the motion displacement at this moment is the minimum abnormal sound displacement of sealing strip. The method fills the blank of the method for testing the minimum abnormal sound displacement of the sealing strip, the minimum abnormal sound displacement of the sealing strip is judged by the noise and the relative displacement generated by the relative sliding in the testing process, and the method has good stability and high reliability in the testing process. Furthermore, the method can be used for selecting the type of the sealing strip in the early stage, and the problem of abnormal sound of the sealing strip of the whole automobile in the later stage is avoided.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, "a plurality" means two or more unless specifically defined otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a sealing strip abnormal sound displacement testing arrangement which characterized in that includes:
a support frame (1) having a gap (2) in the middle thereof;
a fitting assembly (3) located in the middle of the gap (2) and connected to the support frame (1);
a mounting assembly (4) located below the gap (2), the mounting assembly (4) being connected to a mounting surface of a weatherstrip, a friction surface of the weatherstrip being in contact with the mating assembly (3) and being compressed;
the power device (5) is connected with the mounting component (4) and used for pushing the mounting component (4) to extend backwards;
a microphone (6) mounted to the support frame (1) and proximate to the mating member (3), the microphone (6) being spaced from a center location of contact between the friction surface of the seal and the mating member (3) by a distance of 10cm to 12 cm;
the data acquisition device (7) is respectively connected with the microphone (6) and the power device (5);
a data processing device (8) connected to the data acquisition means (7).
2. The sealing strip abnormal sound displacement testing device of claim 1, characterized in that:
the support frame (1) comprises:
a base plate (1-1);
a first support structure (1-2) connected to an upper side of the base plate (1-1);
a second supporting structure (1-3) connected to the other side of the upper part of the bottom plate (1-1), wherein the second supporting structure (1-3) and the first supporting structure (1-2) are oppositely arranged, and the gap (2) is arranged between the second supporting structure (1-3) and the first supporting structure (1-2).
3. The sealing strip abnormal sound displacement testing device of claim 2, characterized in that:
the second support structure (1-3) and the first support structure (1-2) are structurally identical:
the second support structure (1-3) comprises:
the lower end of the vertical plate (1-4) is connected with the bottom plate (1-1);
the first supporting plate (1-5) is integrally constructed at one side of the rear surface of the vertical plate (1-4), and the lower end of the first supporting plate (1-5) is connected with the bottom plate (1-1);
the second supporting plate (1-6) is integrally constructed at the other side of the back of the vertical plate (1-4), the lower end of the second supporting plate (1-6) is connected with the bottom plate (1-1), and the second supporting plate (1-6) and the first supporting plate (1-5) are symmetrically arranged by taking the vertical plate (1-4) as a center.
4. The sealing strip abnormal sound displacement testing device of claim 3, characterized in that:
the lower end of the first supporting plate (1-5) is provided with a first folded plate (1-7), and the first folded plate (1-7) is connected with the bottom plate (1-1);
the lower end of the second supporting plate (1-6) is provided with a second folded plate (1-8), and the second folded plate (1-8) is connected with the bottom plate (1-1);
the first supporting plate (1-5) and the second supporting plate (1-6) are arranged oppositely.
5. The sealing strip abnormal sound displacement testing device of claim 1, characterized in that:
the mating assembly (3) comprises:
the first mounting plate (3-1) is transversely positioned in the middle of the gap (2) and is connected with the support frame (1);
a opponent panel mounted below the first mounting plate (3-1).
6. The sealing strip abnormal sound displacement testing device of claim 5, characterized in that:
the mounting assembly (4) comprises:
a second mounting plate (4-1) located laterally below the gap (2) and below the opponent panel;
the third mounting plate (4-2) is vertically positioned at the lower part of the gap (2), and the upper edge of the third mounting plate (4-2) is connected with the middle part of the lower surface of the second mounting plate (4-1);
the clamp (4-3) is mounted at the upper part of the second mounting plate (4-1), the clamp (4-3) comprises a connecting plate and a clamping bulge, and the clamping bulge is integrally constructed in the middle of the upper surface of the connecting plate;
the clamping protrusion is connected with the mounting surface of the sealing strip.
7. The sealing strip abnormal sound displacement testing device of claim 1, characterized in that:
the power device (5) is an electric sliding table, and the data processing equipment (8) is computer or PC equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202220734584.5U CN217465977U (en) | 2022-03-31 | 2022-03-31 | Sealing strip abnormal sound displacement testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220734584.5U CN217465977U (en) | 2022-03-31 | 2022-03-31 | Sealing strip abnormal sound displacement testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646382A (en) * | 2022-03-31 | 2022-06-21 | 上汽通用五菱汽车股份有限公司 | Sealing strip abnormal sound displacement testing device and method for testing sealing strip |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646382A (en) * | 2022-03-31 | 2022-06-21 | 上汽通用五菱汽车股份有限公司 | Sealing strip abnormal sound displacement testing device and method for testing sealing strip |
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