CN214077654U - Noiseless vibration test system - Google Patents
Noiseless vibration test system Download PDFInfo
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- CN214077654U CN214077654U CN202022746481.4U CN202022746481U CN214077654U CN 214077654 U CN214077654 U CN 214077654U CN 202022746481 U CN202022746481 U CN 202022746481U CN 214077654 U CN214077654 U CN 214077654U
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Abstract
The utility model discloses a noiseless vibration test system, which comprises a vibration generating mechanism and a vibration table top in transmission connection with the vibration generating mechanism, wherein the vibration table top is in sliding fit with a guide supporting mechanism; the guide supporting mechanism is fixedly connected with the base through a plurality of symmetrically arranged supporting frames, each supporting frame comprises at least one first carbon fiber plate, at least two second carbon fiber plates and a mounting seat, the at least two second carbon fiber plates are arranged between the at least one first carbon fiber plate and the mounting seat, and the mounting seat is fixed on the base; the at least two second fiber boards are arranged in parallel at intervals and are fixedly connected with the at least one first fiber board and the mounting seat, so that at least one cavity is formed between the at least two second fiber boards; the second fiberboard is obliquely arranged, and the second fiberboard and the first fiberboard form an angle. This first carbon fiber board and/or second carbon fiber board are for vertical direction slope setting, have not only improved bearing capacity, have effectively reduced the noise of vibration mesa moreover.
Description
Technical Field
The utility model relates to a vibration test, in particular to noiseless vibration test system belongs to vibration test equipment technical field.
Background
The traditional mechanical vibration test bed has the following characteristics: (1) the cooling mode of the table body generally adopts a forced air cooling or circulating water cooling mode; (2) the horizontal vibration sliding table needs high-pressure hydraulic oil; the structure that adopts forced air cooling or circulating water cooling's mode to carry out temperature regulation leads to vibration test equipment noise great to horizontal vibration slip table also can produce the noise, and then influences the experiment and judges.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide a noiseless vibration test system to overcome the disadvantages of the prior art.
For realizing the purpose of the utility model, the utility model discloses a technical scheme include:
the embodiment of the utility model provides a noiseless vibration test system, which comprises a vibration generating mechanism and a vibration table top in transmission connection with the vibration generating mechanism, wherein the vibration table top is in sliding fit with a guide supporting mechanism; the guide supporting mechanism is fixedly connected with the base through a plurality of symmetrically arranged supporting frames, each supporting frame comprises at least one first carbon fiber plate, at least two second carbon fiber plates and a mounting seat, the at least two second carbon fiber plates are arranged between the at least one first carbon fiber plate and the mounting seat, and the mounting seat is fixed on the base; the at least two second fiber plates are arranged in parallel at intervals and are fixedly connected with the at least one first fiber plate and the mounting seat, so that at least one cavity is formed between the at least two second fiber plates; the second fiberboard is obliquely arranged and forms an included angle larger than 0 and smaller than 90 degrees with the vertical direction, and the second fiberboard and the first fiberboard form an included angle larger than 0 and smaller than 180 degrees.
Furthermore, one end of the first carbon fiber plate is fixedly connected with the guide supporting mechanism, the other end of the first carbon fiber plate is fixedly connected with one end of the second carbon fiber plate, and the other end of the second carbon fiber plate is fixedly connected with the mounting seat.
Furthermore, the second fiber plate and the first carbon fiber plate are arranged perpendicular to each other.
Further, the first carbon fiber plate is also obliquely arranged and forms an included angle which is larger than 0 and smaller than 90 degrees with the vertical direction.
Furthermore, the support frame comprises at least two first carbon fiber plates, and the at least two first carbon fiber plates are arranged in a spaced and parallel manner, so that at least one cavity is formed between the at least two first carbon fiber plates.
Further, the guide support mechanism has a hollow structure.
Furthermore, a plurality of through holes are distributed on the vibration table top.
Further, the vibration generating mechanism is also fixedly installed on the base.
Further, vibration generation mechanism is the electrodynamic vibration exciter, the electrodynamic vibration exciter includes that moving coil subassembly and permanent magnet excite, the moving coil subassembly sets up in the magnetic field that the permanent magnet excitation provided, the moving coil subassembly includes moving coil skeleton and around establishing the drive coil on the moving coil skeleton, just the moving coil skeleton with vibration mesa fixed connection, and, the drive coil still is connected with cooling body.
Furthermore, a cooling channel for circulating a cooling medium is arranged in the driving coil, and the cooling mechanism is connected with the cooling channel.
Compared with the prior art, the utility model has the advantages that:
1) the embodiment of the utility model provides a vibration exciter in noiseless vibration test system is silent vibration exciter, and this silent vibration exciter adopts permanent magnetism type excitation, has overcome the drawback that electromagnetic type coil generates heat, and need not carry out the magnetic circuit cooling, and the excitation coil in this silent vibration exciter inside has the cooling channel that can supply cooling medium circulation flow, and this cooling channel is connected with cooling body, and then can not produce the noise;
2) the vibration table board of the noiseless vibration testing system provided by the embodiment of the utility model has a honeycomb structure consisting of a plurality of through holes, thereby effectively reducing the quality of the vibration table board and simultaneously improving the resonance frequency of the vibration table board and the vibration generating mechanism;
3) the embodiment of the utility model provides a support frame among noiseless vibration test system includes an at least first carbon fiber board and two at least second carbon fiber boards, forms an at least cavity between two at least second carbon fiber boards, and this first carbon fiber board and/or second carbon fiber board set up for vertical direction slope, has not only improved bearing capacity, has effectively reduced the noise of vibration mesa moreover.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a noiseless vibration testing system in an exemplary embodiment of the present invention;
FIG. 2 is a side view of a noiseless vibration testing system in an exemplary embodiment of the invention;
fig. 3 is a schematic structural diagram of a silent vibration exciter according to an exemplary embodiment of the present invention;
fig. 4 is a schematic structural view of a support frame according to an exemplary embodiment of the present invention;
FIG. 5 is a side view of a support frame according to an exemplary embodiment of the present invention;
fig. 6 is a front view of a support frame according to an exemplary embodiment of the present invention.
Detailed Description
In view of the deficiencies in the prior art, the inventor of the present invention has made extensive studies and practices to provide the technical solution of the present invention. The technical solution, its implementation and principles, etc. will be further explained as follows. The present invention will be more fully understood from the following detailed description, which should be read in conjunction with the accompanying drawings. Detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various forms. Therefore, specific functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed embodiment.
The embodiment of the utility model provides a noiseless vibration test system mainly is under the vibration test environment to automobile parts, traces back to the produced noise source of its spare part to and, carry out noise level survey under the mechanical environment of the live vibration of simulation, perhaps utilizes the acoustic array to carry out the location of abnormal sound source, through tracing back and noise level survey of the noise source, discovers automobile parts fault point or assists relevant firm to improve its product.
The embodiment of the utility model provides a noiseless vibration test system, which comprises a vibration generating mechanism and a vibration table top in transmission connection with the vibration generating mechanism, wherein the vibration table top is in sliding fit with a guide supporting mechanism; the guide supporting mechanism is fixedly connected with the base through a plurality of symmetrically arranged supporting frames, each supporting frame comprises at least one first carbon fiber plate, at least two second carbon fiber plates and a mounting seat, the at least two second carbon fiber plates are arranged between the at least one first carbon fiber plate and the mounting seat, and the mounting seat is fixed on the base; the at least two second fiber plates are arranged in parallel at intervals and are fixedly connected with the at least one first fiber plate and the mounting seat, so that at least one cavity is formed between the at least two second fiber plates; the second fiberboard is obliquely arranged and forms an included angle larger than 0 and smaller than 90 degrees with the vertical direction, and the second fiberboard and the first fiberboard form an included angle larger than 0 and smaller than 180 degrees.
Specifically, please refer to fig. 1 and fig. 2, an embodiment of the present invention provides a noiseless vibration testing system, which includes a vibration exciter 200 and a vibration table 400 fixedly mounted on a base 100, wherein the vibration exciter 200 is in transmission connection with the vibration table 400, the vibration table 400 is disposed on a guiding support mechanism and in sliding fit with the guiding support mechanism, and the guiding support mechanism is fixedly connected to the base 100 through a plurality of symmetrically disposed support frames 500 capable of reducing vibration and noise; the vibration table 400 is used for bearing a sample to be tested and transmitting the vibration provided by the electrodynamic vibration exciter 100 to the sample to be tested.
Specifically, the guide support mechanism has a hollow structure, and a plurality of through holes are formed in the working table top of the vibration table top 400 and/or the vibration table top, and form a honeycomb structure, so that the honeycomb structure effectively reduces the mass of the vibration table top and improves the resonance frequency of the resonance platform of the vibration table top; the specific size of the through holes constituting the honeycomb structure, the porosity of the vibration table surface, the material and the size of the vibration table surface and the like can be adjusted according to specific conditions.
Specifically, referring to fig. 1 and 3-5, taking one of the supporting frames 500 as an example, the supporting frame 500 includes two first carbon fiber plates 530, two second carbon fiber plates 520 and a mounting base 510, the two first carbon fiber plates 530 are spaced and arranged in parallel, two ends of the two first carbon fiber plates 530 are connected into a whole through a pressing block 540 and a locking screw 550, so as to form at least one cavity between the two first carbon fiber plates 530; the two second fiber plates 520 are arranged in parallel at intervals, and two ends of the two second fiber plates 520 are connected into a whole through the connecting block 540 and the locking screw 550, so that at least one cavity is formed between the two second carbon fiber plates 520; the two second fiber plates 520 are arranged between the two first carbon fiber plates 530 and the mounting seat 510, one ends of the two second fiber plates 520 are fixedly connected with the first carbon fiber plates 530, the other ends of the two second fiber plates 520 are fixedly connected with the mounting seat 510, and the mounting seat 510 is fixed on the base 100; the first fiber plates 530 are all obliquely arranged and form an included angle larger than 0 and smaller than 90 degrees with the vertical direction, for example, the first fiber plates are all obliquely arranged and form an included angle of 45 degrees with the vertical direction; the second fiber plates 520 are all obliquely arranged and form an included angle larger than 0 and smaller than 90 degrees with the vertical direction, for example, the second fiber plates are all obliquely arranged and form an included angle of 45 degrees with the vertical direction; and the second fiber board and the first fiber board form an included angle larger than 0 and smaller than 180 degrees, for example, the second fiber board and the first fiber board are vertically arranged.
Specifically, the two first fiber plates 530 may be directly and fixedly connected to the two second fiber plates 520, respectively, or the two first fiber plates 530 and the two second fiber plates 520 may be fixedly connected by the pressing block 540.
Specifically, the two first carbon fiber plates and the two second carbon fiber plates are both fixedly connected, and the specific connection form thereof may not be limited to the screw connection defined in the drawings and this embodiment, and of course, may also be implemented by using a fixed connection structure and a connection form known to those skilled in the art, and will not be described herein again.
Specifically, the two first fiber plates 530 may be integrally disposed, that is, the two first fiber plates 530 are two constituent structures of a carbon fiber connector, the interior of the carbon fiber connector has a hollow structure, and the two first fiber plates 530 surround to form the hollow structure; similarly, the two second fiber plates 520 may also be integrally disposed, that is, the two second fiber plates 520 are two constituent structures of a carbon fiber connector, the interior of the carbon fiber connector has a hollow structure, and the two second fiber plates 520 surround to form the hollow structure.
Specifically, two first carbon fiber plates and two second carbon fiber plates forming the support frame 500 are provided with cavities formed by the two carbon fiber plates at intervals, and the two first carbon fiber plates and the two second carbon fiber plates are inclined, so that the bearing capacity is improved, the noise of the vibration table board is effectively reduced, and the sizes of the two first carbon fiber plates, the thickness of the two second carbon fiber plates, the length and the like can be adjusted according to different conditions.
Specifically, the vibration exciter 200 is connected with the guide support mechanism through an excitation rod 300, wherein the excitation rod 300 is a component for transmitting excitation force and is rigidly connected between the vibration exciter 200 and the vibration table 400; specifically, when the noiseless vibration test system is used for testing, the tested sample is arranged on the working table of the vibration table 400, and the tested sample can be an automobile part, an equipment sample for setting rail transit and the like.
Specifically, the vibration exciter 200 may be an electrodynamic vibration exciter, the vibration exciter 200 includes a moving coil assembly and a permanent magnet excitation 210, the moving coil assembly is disposed in a magnetic field provided by the permanent magnet excitation 210, the moving coil assembly includes a moving coil skeleton 220 and a driving coil 230 wound on the moving coil skeleton 220, the exciting rod 300 is respectively fixedly connected with the moving coil skeleton 220 and the guiding and supporting mechanism, and a cooling channel through which a cooling medium can flow circularly is further disposed inside the driving coil 230 and connected with the cooling mechanism; for example, the driving coil 230 may be a hollow copper wire wound around, and the cooling medium may be condensed water or the like; of course, the exciter 200 may also comprise other basic structures, and other structures constituting the electrodynamic exciter may be implemented by using structures known to those skilled in the art, and will not be described herein in detail.
The embodiment of the utility model provides a pair of vibration exciter among noiseless vibration test system is silent vibration exciter, and this silent vibration exciter adopts permanent magnetism type excitation, has overcome the drawback that electromagnetic type coil generates heat, and need not carry out the magnetic circuit cooling to exciting coil inside in this silent vibration exciter has the cooling channel that can supply coolant medium circulation to flow, and this cooling channel is connected with cooling body, and then can not produce the noise.
The embodiment of the utility model provides a pair of noiseless vibration test system's vibration mesa has the honeycomb who comprises a plurality of through-holes, and then has effectively reduced the quality of vibration mesa, has improved the resonance frequency that vibration mesa and vibration take place the mechanism simultaneously.
The embodiment of the utility model provides a pair of support frame among noiseless vibration test system includes an at least first carbon fiber board and two at least second carbon fiber boards, forms an at least cavity between two at least second carbon fiber boards, and this first carbon fiber board and/or second carbon fiber board set up for vertical direction slope, has not only improved bearing capacity, and effectively reduced the noise of vibration mesa moreover, this noiseless vibration test system's range of application is not restricted to trades such as automobile parts, rail transit.
The embodiment of the utility model provides a vibration exciter in noiseless vibration test system is silent vibration exciter, and this silent vibration exciter adopts permanent magnetism type excitation, has overcome the drawback that electromagnetic type coil generates heat, and need not carry out the magnetic circuit cooling, and the excitation coil in this silent vibration exciter inside has the cooling channel that can supply cooling medium circulation flow, and this cooling channel is connected with cooling body, and then can not produce the noise; in addition, the vibration table top is provided with a honeycomb structure, so that the mass of the vibration table top is effectively reduced, and the resonance frequency of the vibration table top and the vibration generating mechanism is improved; and the support frame in the noiseless vibration test system comprises a carbon fiber plate with a hollow structure, and the carbon fiber plate is obliquely arranged, so that the bearing capacity is improved, and the noise of the vibration table top is effectively reduced.
It should be understood that the above-mentioned embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, and therefore, the protection scope of the present invention should not be limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. A noiseless vibration test system comprises a vibration generating mechanism and a vibration table top in transmission connection with the vibration generating mechanism, wherein the vibration table top is in sliding fit with a guide supporting mechanism; the method is characterized in that: the guide supporting mechanism is fixedly connected with the base through a plurality of symmetrically arranged supporting frames, each supporting frame comprises at least one first carbon fiber plate, at least two second carbon fiber plates and a mounting seat, the at least two second carbon fiber plates are arranged between the at least one first carbon fiber plate and the mounting seat, and the mounting seat is fixed on the base; the at least two second carbon fiber plates are arranged in parallel at intervals and are fixedly connected with the at least one first carbon fiber plate and the mounting seat, so that at least one cavity is formed between the at least two second carbon fiber plates; the second carbon fiber plate is obliquely arranged and forms an included angle larger than 0 degree and smaller than 90 degrees with the vertical direction, and the second carbon fiber plate and the first carbon fiber plate form an included angle larger than 0 degree and smaller than 180 degrees.
2. The noiseless vibration test system of claim 1, wherein: one end of the first carbon fiber plate is fixedly connected with the guide supporting mechanism, the other end of the first carbon fiber plate is fixedly connected with one end of the second carbon fiber plate, and the other end of the second carbon fiber plate is fixedly connected with the mounting seat.
3. The noiseless vibration test system of claim 2, wherein: the second carbon fiber plate and the first carbon fiber plate are arranged perpendicular to each other.
4. The noiseless vibration test system of claim 1, wherein: the first carbon fiber plate is also obliquely arranged and forms an included angle which is larger than 0 degrees and smaller than 90 degrees with the vertical direction.
5. The noiseless vibration test system of claim 1 or 4, wherein: the support frame comprises at least two first carbon fiber plates which are arranged in parallel at intervals, so that at least one cavity is formed between the at least two first carbon fiber plates.
6. The noiseless vibration test system of claim 1, wherein: the guide supporting mechanism has a hollow structure.
7. The noiseless vibration test system of claim 1, wherein: a plurality of through holes are distributed on the vibration table top.
8. The noiseless vibration test system of claim 1, wherein: the vibration generating mechanism is also fixedly mounted on the base.
9. The noiseless vibration test system of claim 1, wherein: vibration generation mechanism is the electrodynamic type vibration exciter, the electrodynamic type vibration exciter includes moving coil subassembly and permanent magnet excitation, the moving coil subassembly sets up in the magnetic field that the permanent magnet excitation provided, the moving coil subassembly includes moving coil skeleton and around establishing the drive coil on moving coil skeleton, just the moving coil skeleton with vibration mesa fixed connection, and, the drive coil still is connected with cooling body.
10. The noiseless vibration test system of claim 9, wherein: and a cooling channel for circulating and flowing a cooling medium is arranged in the driving coil, and the cooling mechanism is connected with the cooling channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022746481.4U CN214077654U (en) | 2020-11-24 | 2020-11-24 | Noiseless vibration test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022746481.4U CN214077654U (en) | 2020-11-24 | 2020-11-24 | Noiseless vibration test system |
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| CN214077654U true CN214077654U (en) | 2021-08-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114674515A (en) * | 2022-03-22 | 2022-06-28 | 苏州信科检测技术有限公司 | Vibration noise test system |
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2020
- 2020-11-24 CN CN202022746481.4U patent/CN214077654U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114674515A (en) * | 2022-03-22 | 2022-06-28 | 苏州信科检测技术有限公司 | Vibration noise test system |
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