CN220508231U - Motor noise test bench - Google Patents
Motor noise test bench Download PDFInfo
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- CN220508231U CN220508231U CN202321746470.3U CN202321746470U CN220508231U CN 220508231 U CN220508231 U CN 220508231U CN 202321746470 U CN202321746470 U CN 202321746470U CN 220508231 U CN220508231 U CN 220508231U
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- 238000012360 testing method Methods 0.000 title claims abstract description 58
- 230000030279 gene silencing Effects 0.000 claims abstract description 33
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 230000009351 contact transmission Effects 0.000 claims abstract description 6
- 238000013016 damping Methods 0.000 claims description 48
- 230000008030 elimination Effects 0.000 claims description 32
- 238000003379 elimination reaction Methods 0.000 claims description 32
- 238000009413 insulation Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 15
- 230000009467 reduction Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of motor noise detection, and discloses a motor noise test board, which comprises a silencing box body, a first motor, a vibration damper, a second motor and a magnetic coupler, wherein a silencing cavity is formed in the silencing box body, and the silencing cavity is provided with the first motor; the vibration damper is arranged at the outer side of the silencing box body, a second motor is arranged at one side of the vibration damper, far away from the silencing box body, both the output shaft of the first motor and the output shaft of the second motor extend into the vibration damper, the output shaft of the first motor and the output shaft of the second motor are in non-contact transmission connection in the vibration damper through the magnetic coupler, one of the first motor and the second motor is a test motor, the other of the first motor and the second motor is a load motor, and the test motor is used for driving the load motor; the noise detection device is used for detecting the noise of the test motor. The motor noise test board can reduce the influence of load on the motor, improves the accuracy of noise detection.
Description
Technical Field
The utility model relates to the technical field of motor noise detection, in particular to a motor noise test board.
Background
The industrial motor and other load devices are connected together by mechanical coupling to operate in the practical application process, generated vibration noise is vibration noise of a system, when the vibration noise is overlarge or abnormal, whether the vibration noise is caused by a load or caused by the motor cannot be effectively distinguished, although the motor can be placed in a special acoustic environment such as a semi-anechoic chamber or a full anechoic chamber in a laboratory for testing in the prior art, only the vibration noise of the motor in an idle state can be acquired, the vibration noise data in the load state cannot be acquired, and the authenticity of the vibration noise is insufficient.
Therefore, there is a need for a motor noise test board to reduce the influence of the load on the motor and improve the accuracy of noise detection.
Disclosure of Invention
One object of the present utility model is to: the motor noise test board can reduce the influence of load on a motor and improve the accuracy of noise detection.
To achieve the purpose, the utility model adopts the following technical scheme:
motor noise test bench includes:
the device comprises a silencing box body, wherein a silencing cavity is formed in the silencing box body, and a first motor is installed in the silencing cavity;
the vibration damper is arranged on the outer side of the silencing box body, a second motor is arranged on one side, far away from the silencing box body, of the vibration damper, an output shaft of the first motor and an output shaft of the second motor extend into the vibration damper, the output shaft of the first motor and the output shaft of the second motor are in non-contact transmission connection in the vibration damper through a magnetic coupler, one of the first motor and the second motor is a test motor, the other of the first motor and the second motor is a load motor, and the test motor is used for driving the load motor;
and the noise detection device is used for detecting the noise of the test motor.
As an optional technical scheme, the central axis of the output shaft of the first motor and the central axis of the output shaft of the second motor overlap in the vertical direction, and the output shaft of the first motor is axially connected with the output shaft of the second motor.
As an optional solution, the vibration damping device includes:
the second motor is mounted on the vibration reduction mounting plate;
damping support column, damping support column set up in damping mounting panel with between the noise elimination box.
As an optional technical scheme, the damping support column is internally filled with a plurality of damping balls.
As an optional technical scheme, the damping ball is a steel ball.
As an optional technical solution, the vibration damper further includes a sound insulation frame, the sound insulation frame is enclosed on the periphery of the damping support column, and the sound insulation frame is used for isolating noise of the damping support column.
As an optional technical scheme, the sound insulation frame comprises a sound insulation screen plate and a sound insulation material, wherein a plurality of meshes are formed in the sound insulation screen plate, and the sound insulation material is arranged on the inner side of the sound insulation screen plate.
As an optional technical scheme, the silencing cavity is a semicircular cavity.
As an optional technical scheme, the noise elimination box includes noise elimination frame and noise elimination mounting panel, noise elimination frame with noise elimination mounting panel encloses into the noise elimination chamber, first motor install in noise elimination mounting panel.
As an optional technical scheme, the silencing frame comprises a silencing screen plate and silencing materials, wherein a plurality of meshes are formed in the silencing screen plate, and the silencing materials are arranged on the inner side of the silencing screen plate.
The utility model has the beneficial effects that:
the utility model provides a motor noise test board, which comprises a noise elimination box body, a first motor, a vibration reduction device, a second motor and a magnetic coupler, wherein the test motor is used as a detected object, the load motor is used as a load workpiece, in the test process, the test motor is electrified and started to operate, the load motor is driven by the test motor through the magnetic coupler, when the first motor is the test motor, the second motor is the load motor, when the first motor is the load motor, the second motor is the test motor, an operator can switch the using state of the first motor and the using state of the second motor according to actual needs, and because an output shaft of the test motor and an output shaft of the load motor are in non-contact transmission connection through the magnetic coupler, vibration of the load motor cannot be transmitted to the test motor, the influence of the load motor on the test motor is reduced, and the accuracy of the noise detection device on noise detection of the test motor is improved.
Drawings
The utility model is described in further detail below with reference to the drawings and examples;
fig. 1 is a schematic structural diagram of a motor noise test stand according to an embodiment;
fig. 2 is a cross-sectional view of a motor noise test stand according to an embodiment.
In the figure:
1. a sound-deadening box body; 11. an acoustic cavity; 12. a sound damping frame; 121. a sound-deadening screen plate; 122. a sound damping material; 13. a sound damping mounting plate;
2. a first motor;
3. a vibration damping device; 31. a vibration damping mounting plate; 32. damping support columns; 33. a soundproof frame; 331. a sound insulation screen; 332. a sound insulating material;
4. a second motor;
5. a magnetic coupler.
Detailed Description
In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the operation, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for providing a special meaning.
In the description herein, reference to the term "one embodiment," "an example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1 and 2, the present embodiment provides a motor noise test board, which includes a noise elimination box 1, a first motor 2, a vibration damping device 3, a second motor 4, and a magnetic coupler 5, wherein a noise elimination cavity 11 is formed in the noise elimination box 1, and the noise elimination cavity 11 is provided with the first motor 2; the vibration damper 3 is arranged on the outer side of the silencing box body 1, a second motor 4 is arranged on one side, away from the silencing box body 1, of the vibration damper 3, an output shaft of the first motor 2 and an output shaft of the second motor 4 both extend into the vibration damper 3, the output shaft of the first motor 2 and the output shaft of the second motor 4 are in non-contact transmission connection in the vibration damper 3 through a magnetic coupler 5, one of the first motor 2 and the second motor 4 is a test motor, the other of the first motor 2 and the second motor 4 is a load motor, and the test motor is used for driving the load motor; the noise detection device is used for detecting the noise of the test motor.
Specifically, test motor is as the detected object, load motor is as the load work piece, in test process, test motor circular telegram starts the operation, test motor passes through magnetic coupler 5 and drives load motor, when first motor 2 is test motor, second motor 4 is load motor, when first motor 2 is load motor, second motor 4 is test motor, the operator can switch the service condition of first motor 2 and the service condition of second motor 4 according to actual need, because test motor's output shaft and load motor's output shaft all pass through magnetic coupler 5 non-contact transmission in damping device 3's inside and are connected, therefore load motor's vibration can't transmit to test motor, reduce load motor's influence to test motor, improve noise detection device to test motor's noise detection's accuracy.
Specifically, the second motor 4 is installed outside the vibration damper 3, the output shaft of the first motor 2 and the output shaft of the second motor 4 extend into the vibration damper 3, noise caused by the transmission of the magnetic coupler 5 is isolated by the vibration damper 3, and the influence of transmission noise on the noise detection device is reduced.
The magnetic coupler 5 is an existing product, and the magnetic coupler 5 is of a single-product structure, so that transmission parts can be reduced between the output shaft of the first motor 2 and the output shaft of the second motor 4, and overlarge noise caused by overlarge transmission parts is avoided.
In this embodiment, when the first motor 2 is a load motor, the second motor 4 is a test motor, and the test motor is located outside the noise elimination box 1, which is favorable to the position layout of the noise detection device, and the noise elimination box 1 with smaller volume can be adopted, so that the occupation space is avoided being too large.
Optionally, noise detection devices are disposed inside and outside the noise elimination box 1. The noise detection device is an existing product, and the specific structure is not displayed any more.
Optionally, the central axis of the output shaft of the first motor 2 overlaps with the central axis of the output shaft of the second motor 4 in the vertical direction, the output shaft of the first motor 2 is connected with the output shaft of the second motor 4 along the axial direction, the use state of the first motor 2 and the use state of the second motor 4 are conveniently switched, the first motor 2 and the second motor 4 do not need to be disassembled and replaced, the output shaft of the first motor 2 is connected with the output shaft of the second motor 4 along the axial direction, the test motor drives the load motor to rotate around the central axis, and transmission noise can be reduced.
Optionally, the vibration damper 3 includes a vibration damper mounting plate 31 and a damping support column 32, and the second motor 4 is mounted on the vibration damper mounting plate 31; the damping support column 32 is disposed between the vibration reduction mounting plate 31 and the muffler case 1. The vibration reduction mounting plate 31 and the damping support column 32 are provided to reduce the vibration influence of the first motor 2 on the second motor 4.
Optionally, the interior of the damping support column 32 is filled with a plurality of damping balls. When the damping support column 32 is driven by the first motor 2, nonlinear collision occurs between damping balls located inside the damping support column 32, energy generated by structural vibration is consumed, and vibration amplitude of the vibration damping support column 32 is reduced.
In this embodiment, the damping balls are steel balls. The steel ball is an existing product, and the specific structure is not displayed any more.
Optionally, the vibration damper 3 further includes a sound insulation frame 33, the sound insulation frame 33 is disposed around the periphery of the damping support column 32, and the sound insulation frame 33 is used for isolating noise of the damping support column 32.
In order to avoid the noise generated by the nonlinear collision between the steel balls from affecting the test result, the damping support column 32 is enclosed by the sound insulation frame 33, and the noise generated by the nonlinear collision between the steel balls is blocked by the sound insulation frame 33.
Optionally, a sound insulation frame 33 is located between the vibration reduction mounting plate 31 and the sound attenuation housing 1.
Optionally, the soundproof frame 33 includes a soundproof mesh 331 and a soundproof material 332, the soundproof mesh 331 is provided with a plurality of meshes, and the soundproof material 332 is disposed inside the soundproof mesh 331.
The sound insulation net plate 331 is provided with a plurality of meshes, which is beneficial to weight reduction, and the sound insulation material 332 is an existing material, such as a sound insulation sponge.
Optionally, the silencing cavity 11 is a semicircular cavity, and the sound absorption effect of the semicircular cavity is better.
Optionally, the silencing box 1 includes a silencing frame 12 and a silencing mounting plate 13, the silencing frame 12 and the silencing mounting plate 13 enclose a silencing cavity 11, and the first motor 2 is mounted on the silencing mounting plate 13.
Optionally, the sound-damping frame 12 includes a sound-damping mesh plate 121 and a sound-damping material 122, where the sound-damping mesh plate 121 is provided with a plurality of meshes, and the sound-damping material 122 is disposed inside the sound-damping mesh plate 121.
The sound damping net plate 121 is provided with a plurality of net holes, which is beneficial to weight reduction, and the sound damping material 122 is an existing material, such as a sound insulation sponge.
Furthermore, the foregoing description of the preferred embodiments and the principles of the utility model is provided herein. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.
Claims (10)
1. Motor noise testboard, its characterized in that includes:
the device comprises a silencing box body (1), wherein a silencing cavity (11) is formed in the silencing box body (1), and a first motor (2) is arranged in the silencing cavity (11);
the vibration damper (3), the vibration damper (3) is installed in the outside of the noise elimination box body (1), a second motor (4) is installed on one side, far away from the noise elimination box body (1), of the vibration damper (3), the output shaft of the first motor (2) and the output shaft of the second motor (4) extend into the interior of the vibration damper (3), the output shaft of the first motor (2) and the output shaft of the second motor (4) are in non-contact transmission connection in the interior of the vibration damper (3) through a magnetic coupler (5), one of the first motor (2) and the second motor (4) is a test motor, and the other of the first motor (2) and the second motor (4) is a load motor, and the test motor is used for driving the load motor;
and the noise detection device is used for detecting the noise of the test motor.
2. The motor noise test stand according to claim 1, characterized in that a central axis of an output shaft of the first motor (2) and a central axis of an output shaft of the second motor (4) overlap in a vertical direction, and the output shaft of the first motor (2) and the output shaft of the second motor (4) are connected in an axial direction.
3. Motor noise test bench according to claim 1, characterized in that said vibration damping means (3) comprise:
a vibration reduction mounting plate (31), wherein the second motor (4) is mounted on the vibration reduction mounting plate (31);
damping support column (32), damping support column (32) set up in damping mounting panel (31) with between noise elimination box (1).
4. A motor noise test bench according to claim 3, characterized in that the inside of the damping support column (32) is filled with a plurality of damping balls.
5. The motor noise test stand of claim 4, wherein the damping ball is a steel ball.
6. Motor noise test bench according to claim 3 or 4 or 5, characterized in that the vibration damping device (3) further comprises a sound insulation frame (33), the sound insulation frame (33) being arranged around the periphery of the damping support column (32), the sound insulation frame (33) being used for isolating noise of the damping support column (32).
7. The motor noise test stand according to claim 6, wherein the soundproof frame (33) includes a soundproof mesh plate (331) and a soundproof material (332), the soundproof mesh plate (331) is provided with a plurality of mesh openings, and the soundproof material (332) is disposed inside the soundproof mesh plate (331).
8. Motor noise test bench according to claim 1, characterized in that the muffling cavity (11) is a semicircular cavity.
9. Motor noise test bench according to claim 1, characterized in that the noise elimination box (1) comprises a noise elimination frame (12) and a noise elimination mounting plate (13), the noise elimination frame (12) and the noise elimination mounting plate (13) enclose the noise elimination chamber (11), and the first motor (2) is mounted on the noise elimination mounting plate (13).
10. The motor noise test stand according to claim 9, wherein the noise elimination frame (12) includes a noise elimination screen (121) and a noise elimination material (122), the noise elimination screen (121) is provided with a plurality of meshes, and the noise elimination material (122) is disposed inside the noise elimination screen (121).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321746470.3U CN220508231U (en) | 2023-07-05 | 2023-07-05 | Motor noise test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321746470.3U CN220508231U (en) | 2023-07-05 | 2023-07-05 | Motor noise test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220508231U true CN220508231U (en) | 2024-02-20 |
Family
ID=89882805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321746470.3U Active CN220508231U (en) | 2023-07-05 | 2023-07-05 | Motor noise test bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220508231U (en) |
-
2023
- 2023-07-05 CN CN202321746470.3U patent/CN220508231U/en active Active
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