CN212721737U - Excavator noise testing arrangement - Google Patents
Excavator noise testing arrangement Download PDFInfo
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- CN212721737U CN212721737U CN202021556142.3U CN202021556142U CN212721737U CN 212721737 U CN212721737 U CN 212721737U CN 202021556142 U CN202021556142 U CN 202021556142U CN 212721737 U CN212721737 U CN 212721737U
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- connecting rod
- microphone
- tooth
- noise testing
- excavator
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Abstract
The utility model discloses an excavator noise testing arrangement, include: a microphone; one end of the first connecting rod is connected with a fixing clamp through a tensioning structure, and the other end of the first connecting rod is connected with a second connecting rod through a tensioning mechanism; one end of the second connecting rod is rotatably connected with a microphone; the utility model discloses a tensioning structure connects, plays stable connection on the one hand, and on the other hand can also adjust connection angle, realizes connection angle's random transform, improves the application scope of microphone, strengthens the stability of noise test, the accuracy nature of test data greatly, reduces the destruction and the influence of test environment to the microphone, improves the life of microphone.
Description
Technical Field
The utility model relates to an excavator noise testing arrangement belongs to excavator noise detection technical field.
Background
When the noise of the excavator is tested, if the space is sufficient or the excavator is kept still, a tripod is usually adopted to fix the microphone or a handheld sound level meter is usually used for noise test, but the tripod or the manual handheld sound level meter cannot be used in a narrow space or under a motion working condition.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome among the prior art under narrow and small space or motion operating mode, can't use the not enough of A-frame or artifical handheld sound level meter, provide an excavator noise testing arrangement.
An excavator noise testing device, comprising:
a microphone;
one end of the first connecting rod is connected with a fixing clamp through a tensioning structure, and the other end of the first connecting rod is connected with a second connecting rod through a tensioning mechanism;
one end of the second connecting rod is rotatably connected with a microphone.
Furthermore, the tensioning mechanism comprises a first tooth arranged on the first connecting rod, a second tooth arranged at one end of the second connecting rod and matched with the first tooth, and a return spring;
one end of the reset spring is connected with the first connecting rod, the other end of the reset spring is connected with one side, far away from the second tooth, of the second connecting rod, and the reset spring extrudes the second connecting rod to enable the first tooth and the second tooth to be positioned and clamped.
Furthermore, one end of the second connecting rod is provided with a shaft sleeve for rotating the microphone;
a rotating shaft is arranged in the shaft sleeve;
the microphone is connected with the rotating shaft through the microphone clamping piece.
Further, the shaft sleeve is connected with the rotating shaft through a tightening bolt.
Furthermore, the microphone clamping piece is fixedly connected with the rotating shaft through a clamping bolt.
Furthermore, one end of the second connecting rod, which is close to the microphone, is provided with a temperature sensor.
Compared with the prior art, the utility model discloses the beneficial effect who reaches: the utility model discloses a tensioning structure connects, plays stable connection on the one hand, and on the other hand can also adjust connection angle, realizes connection angle's random transform, improves the application scope of microphone, strengthens the stability of noise test, the accuracy nature of test data greatly, reduces the destruction and the influence of test environment to the microphone, improves the life of microphone.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of the tensioning mechanism of the present invention;
fig. 3 is a schematic view of the connection portion between the microphone and the second rod according to the present invention.
In the figure: 1-a fixed clamp, 2-a first connecting rod, 3-a second connecting rod, 4-a tightening bolt, 5-a shaft sleeve, 6-a clamping bolt, 7-a microphone clamping piece, 8-a microphone, 9-a temperature sensor, 10-a complex spring, 11-a first tooth, 12-a second tooth and 13-a rotating shaft.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. 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. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1 to 3, disclosed is an excavator noise testing apparatus, including:
a microphone 8;
one end of the first connecting rod 2 is connected with a fixing clamp 1 through a tensioning structure, and the other end of the first connecting rod 2 is connected with a second connecting rod 3 through a tensioning mechanism; the first connecting rod 2 is connected with the fixing clamp 1 and the second connecting rod 3 through a tensioning structure, so that on one hand, stable connection is achieved, on the other hand, the connecting angle can be adjusted, and random change of the connecting angle is achieved, as shown in fig. 2;
the second connecting rod 3 is matched with the first connecting rod 2 for use, so that the microphone 8 can be fixed at any position of a plane;
the fixing clamp 1 is made of metal, and the outer layer of the fixing clamp is coated by a layer of rubber, so that a certain vibration damping effect is achieved on the premise of good fixing effect;
one end of the second connecting rod 3 is rotatably connected with a microphone 8; the microphone is connected through the rotary connection, and the microphone 8 can rotate at any angle.
In the embodiment, the tensioning mechanism comprises a first tooth 11 arranged on the first connecting rod 2, a second tooth 12 arranged at one end of the second connecting rod 3 and matched with the first tooth 11, and a return spring 10;
one end of the return spring is connected with the first connecting rod 2, the other end of the return spring is connected with one side, far away from the second tooth 12, of the second connecting rod 3, and the return spring 10 extrudes the second connecting rod 3 to enable the first tooth 11 to be positioned and clamped with the second tooth 12; the fixing clamp 1 is also provided with a second tooth 12 which is meshed with the first tooth 11, so that the angle between the fixing clamp 1 and the first rod 2 can be adjusted.
In this embodiment, one end of the second link 3 is provided with a shaft sleeve 5 for rotating the microphone 8;
a rotating shaft 13 is arranged in the shaft sleeve 5; the bolt 4 is screwed up to play a role in fixing after the angle between the second connecting rod 3 and the shaft sleeve 5 is adjusted, so that the angle of the microphone 8 can be conveniently adjusted, as shown in fig. 3;
the microphone 8 through the microphone clamping piece 7 with pivot 13 is connected, microphone clamping piece 7 is the metal material, and the skin is by the cladding of rubber material, under the effect prerequisite of tight microphone 8 of play, still possesses certain damping effect, further reduces the destruction of vibrating many microphones 8.
In this embodiment, a temperature sensor 9 is disposed at one end of the second link 3 close to the microphone 8; on one hand, the temperature monitoring device has the function of monitoring the temperature near the microphone, when the temperature is too high, an alarm is given out to prevent the microphone from being damaged, the data acquisition module can simultaneously acquire the temperature data of the temperature sensor 9 and the noise data of the microphone 8, the monitoring of the temperature around the microphone 8 is realized in the computer-side software module, when the temperature exceeds a set limit value, an alarm signal is sent out, and on the other hand, the acquired temperature signal can realize the temperature compensation of noise test data at the software side.
During the use, when carrying out the noise test, the fixation clamp 1 is fixed the noise test device and is surveyed a suitable position, adjusts first connecting rod 2, second connecting rod 2, unscrews and screws up 4 rotatory microphones 8 and screw up after suitable angle to make microphones 8 be fixed in suitable position, develop the noise test according to the demand operating mode.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (6)
1. An excavator noise testing arrangement, characterized by includes:
a microphone (8);
one end of the first connecting rod (2) is connected with a fixing clamp (1) through a tensioning structure, and the other end of the first connecting rod (2) is connected with a second connecting rod (3) through a tensioning mechanism;
one end of the second connecting rod (3) is rotatably connected with a microphone (8).
2. The excavator noise testing device according to claim 1, wherein the tensioning mechanism comprises a first tooth (11) arranged on the first connecting rod (2), a second tooth (12) arranged at one end of the second connecting rod (3) and matched with the first tooth (11), and a return spring (10);
one end of the reset spring is connected with the first connecting rod (2), the other end of the reset spring is connected with one side, away from the second tooth (12), of the second connecting rod (3), and the reset spring (10) extrudes the second connecting rod (3) to enable the first tooth (11) and the second tooth (12) to be clamped in a positioning mode.
3. The excavator noise testing device of claim 1, wherein one end of the second connecting rod (3) is provided with a shaft sleeve (5) for rotating the microphone (8);
a rotating shaft (13) is arranged in the shaft sleeve (5);
the microphone (8) is connected with the rotating shaft (13) through a microphone clamping piece (7).
4. The excavator noise testing device according to claim 3, wherein the shaft sleeve (5) and the rotating shaft (13) are connected by tightening bolts (4).
5. The excavator noise testing device of claim 3, wherein the microphone clamping piece (7) is fixedly connected with the rotating shaft (13) through a clamping bolt (6).
6. Excavator noise testing arrangement according to claim 1, characterized in that the end of the second link (3) close to the microphone (8) is provided with a temperature sensor (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021556142.3U CN212721737U (en) | 2020-07-31 | 2020-07-31 | Excavator noise testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021556142.3U CN212721737U (en) | 2020-07-31 | 2020-07-31 | Excavator noise testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212721737U true CN212721737U (en) | 2021-03-16 |
Family
ID=74910914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021556142.3U Active CN212721737U (en) | 2020-07-31 | 2020-07-31 | Excavator noise testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212721737U (en) |
-
2020
- 2020-07-31 CN CN202021556142.3U patent/CN212721737U/en active Active
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