CN209014134U - A kind of power spectrum density detection device - Google Patents
A kind of power spectrum density detection device Download PDFInfo
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- CN209014134U CN209014134U CN201821641284.2U CN201821641284U CN209014134U CN 209014134 U CN209014134 U CN 209014134U CN 201821641284 U CN201821641284 U CN 201821641284U CN 209014134 U CN209014134 U CN 209014134U
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- measuring instrument
- noise measuring
- power spectrum
- bearing box
- bottom end
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Abstract
The utility model discloses a kind of power spectrum density detection devices, it include bearing box, noise measuring instrument is placed at the inside center of the bearing box, both ends are movably equipped with mill pinion at the top of the bearing box, the opposed side of mill pinion is equipped with case lid, the inner sidewall of the bearing box is symmetrically arranged with the first spring, first spring end is connected with clamping plate, the bottom end of the bearing box is equipped with bearing block along vertical centre, the bottom end of the bearing block is connected with fixing seat, and the bottom end of the fixing seat is equipped with three main supports.In the utility model, the power spectrum density detection device, case lid can protect noise measuring instrument, also dust can be prevented to enter in noise measuring instrument simultaneously, it can be rotated by the bearing block of bottom end, the noise of diffusion is collected to convenient, and then is conducive to noise measuring instrument and noise is detected, improves detection effect and precision.
Description
Technical field
The utility model relates to detection device field, in particular to a kind of power spectrum density detection device.
Background technique
Frequency spectrum is exactly the distribution curve of frequency, and complex oscillation is decomposed into the resonance oscillation different with frequency of amplitude difference, these
The amplitude of resonance oscillation is called frequency spectrum by the figure of frequency permutation, and spectral density is a big feature of noise, by spectral density
Detection to understand the stable case of equipment and the faulted condition of equipment；
Existing spectral density detection device, is generally only single equipment, generally hand-held, this causes to prevent from installing
Inconvenience needs to be detected for a long time for more complicated machine, and hand-held is impossible always by manually holding,
And some, than relatively hazardous in workshop, hazard to person may cause to hand-held personnel.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of power spectrum proposed is close
Spend detection device.
To achieve the goals above, the utility model adopts the technical scheme that a kind of power spectrum density detection dress
It sets, includes bearing box, noise measuring instrument is placed at the inside center of the bearing box, both ends activity at the top of the bearing box
Equipped with mill pinion, the opposed side of mill pinion is equipped with case lid, and the inner sidewall of the bearing box is symmetrically arranged with the first spring,
First spring end is connected with clamping plate, and the bottom end of the bearing box is equipped with bearing block, the bearing block along vertical centre
Bottom end be connected with fixing seat, the bottom end of the fixing seat is equipped with three main supports, and three main supports are with the center of circle of fixing seat
It is in circulating type equidistant arrangement for origin, is socketed with telescopic rod inside the main support, is welded with rack gear at the top of the telescopic rod,
The outside of the main support, which is run through, is equipped with support rod, and the appearance surface cover that the support rod is located inside main support just has second spring, institute
The bottom end for stating telescopic rod is equipped with universal shaft, and the bottom end of the universal shaft, which is connected with, grabs foot.
It is as above-mentioned technical proposal to further describe:
The upper end outer surface two sides of the noise measuring instrument are equipped with the detection wing, and detect to be connected with condenser type on the wing and vibrate and add
Velocity sensor.
It is as above-mentioned technical proposal to further describe:
The leading exterior surface of the noise measuring instrument is equipped with liquid crystal display, and the end of noise measuring instrument is equipped with output and connects
Mouthful, communication device, memory, signal processor are equipped with inside the noise measuring instrument.
It is as above-mentioned technical proposal to further describe:
The both ends lateral wall of the case lid offers sawtooth, and is intermeshed between the huge tooth and mill pinion of case lid.
It is as above-mentioned technical proposal to further describe:
On the clamping plate and what noise measuring instrument was bonded is pasted with cystosepiment on one side, and the inside of cystosepiment is in honeycomb
Structure.
It is as above-mentioned technical proposal to further describe:
The bottom end external member for grabbing foot has plastics bitch, and the length of bitch is not less than 2cm.
The utility model has the following beneficial effects: the power spectrum density detection device, case lid can be to noise measurings
Instrument is protected, while also dust can be prevented to enter in noise measuring instrument, can be rotated by the bearing block of bottom end, thus convenient
The noise of diffusion is collected, and then is conducive to noise measuring instrument and noise is detected, improves detection effect and precision,
And the wing is detected, can capture noise vibration in air has an auxiliary detection effect to noise measuring instrument, and entire support frame can be into
Row free extension, to take the noise vibration of different height.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of power spectrum density detection device overall diagram；
Fig. 2 be the utility model proposes a kind of power spectrum density detection device supporting mechanism cross-sectional view；
Fig. 3 be the utility model proposes a kind of power spectrum density detection device A at enlarged drawing.
In figure: 1, noise measuring instrument；2, case lid；3, the first spring；4, main support；5, telescopic rod；6, universal shaft；7, it grabs
Foot；8, mill pinion；9, the wing is detected；10, clamping plate；11, bearing box；12, bearing block；13, fixing seat；14, rack gear；15, the second bullet
Spring；16, support rod.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention；Term " first ", " the
Two ", " third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance；In addition, unless otherwise specific
Regulation and restriction, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to
It is detachably connected, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also lead to
It crosses intermediary to be indirectly connected, can be the connection inside two elements.It for the ordinary skill in the art, can be with
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
Referring to Fig.1-3, a kind of power spectrum density detection device includes bearing box 11, the inside center of bearing box 11
Place is placed with noise measuring instrument 1, and 11 top both ends of bearing box are movably equipped with mill pinion 8, and the opposed side of mill pinion 8 is equipped with case
Lid 2, the inner sidewall of bearing box 11 are symmetrically arranged with the first spring 3, and 3 end of the first spring is connected with clamping plate 10, the bottom of bearing box 11
End is equipped with bearing block 12 along vertical centre, and the bottom end of bearing block 12 is connected with fixing seat 13, and the bottom end of fixing seat 13 is equipped with three
Root main support 4, and three main supports 4 are in circulating type equidistant arrangement by origin of the center of circle of fixing seat 13, are socketed inside main support 4
There is telescopic rod 5, the top of telescopic rod 5 is welded with rack gear 14, and the outside of main support 4, which is run through, is equipped with support rod 16, and support rod 16 is located at master
Appearance surface cover inside bracket 4 just has second spring 15, and the bottom end of telescopic rod 5 is equipped with universal shaft 6, and the bottom end of universal shaft 6 connects
Grab foot 7.
The upper end outer surface two sides of noise measuring instrument 1 are equipped with the detection wing 9, and detect to be connected with condenser type on the wing 9 and vibrate and add
Velocity sensor can capture the vibration of noise in air, keep testing result more accurate；The leading exterior surface of noise measuring instrument 1
Equipped with liquid crystal display, and the end of noise measuring instrument 1 is equipped with output interface, and communication device, storage are equipped with inside noise measuring instrument 1
Device, signal processor, and 1 structure of noise measuring instrument common on the market are essentially identical；The both ends lateral wall of case lid 2 offers saw
Tooth, and be intermeshed between the huge tooth and mill pinion 8 of case lid 2, the benefit designed in this way is that case lid 2 can freely adjust height,
And it does not fall out；On clamping plate 10 and what noise measuring instrument 1 was bonded is pasted with cystosepiment on one side, and the inside of cystosepiment is in honeycomb
Shape structure plays the role of damping, prevents from shaking the testing result generation error to noise measuring instrument 1；Grab the bottom end external member of foot 7
There is plastics bitch, and the length of bitch is not less than 2cm.
Working principle: the utility model is a kind of power spectrum density detection device, first by clamping plate 10 to bearing box 11
Inner sidewall direction push, in the inside center that noise measuring instrument 1 is placed on to bearing box 11, unclamping clamping plate 10 makes the first spring
3 bounce squeezing splints 10 fixing tightly by noise measuring instrument 1, then case lid 2 is overlapped on to the top wall of bearing box 11
It presses down on, is intermeshed sawtooth on case lid 2 and mill pinion 8, have the function that fixed box cover 2, then by three main supports 4
It pulling outward, makes it in standing like the legs of a tripod state, when use, adjusts the height of supporting mechanism as needed, support rod 16 is pulled with hand,
Support rod 16 compresses second spring 15, so that support rod 16 is detached from the engagement of rack gear 14, it at this time can be by telescopic rod 5 from main support 4
It is interior just to be completed after adjusting to out-draw or to retraction, support rod 16 is decontroled, the reset of second spring 15 engages support rod 16 into rack gear 14
It is interior, complete the fixation to telescopic rod 5.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of power spectrum density detection device includes bearing box (11), it is characterised in that: the bearing box (11) it is interior
It is placed at portion center noise measuring instrument (1), both ends are movably equipped with mill pinion (8), the gear at the top of the bearing box (11)
Roller (8) opposed side is equipped with case lid (2), and the inner sidewall of the bearing box (11) is symmetrically arranged with the first spring (3), and described the
One spring (3) end is connected with clamping plate (10), and the bottom end of the bearing box (11) is equipped with bearing block (12) along vertical centre, institute
The bottom end for stating bearing block (12) is connected with fixing seat (13), and the bottom end of the fixing seat (13) is equipped with three main supports (4), and three
A main support (4) is in circulating type equidistant arrangement by origin of the center of circle of fixing seat (13), is socketed with and stretches inside the main support (4)
Contracting bar (5) is welded with rack gear (14) at the top of the telescopic rod (5), and the outside of the main support (4), which is run through, is equipped with support rod
(16), the support rod (16) is located at the internal appearance surface cover of main support (4) and just has second spring (15), the telescopic rod (5)
Bottom end is equipped with universal shaft (6), and the bottom end of the universal shaft (6), which is connected with, grabs foot (7).
2. a kind of power spectrum density detection device according to claim 1, it is characterised in that: the noise measuring instrument
(1) upper end outer surface two sides are equipped with the detection wing (9), and detect and be connected with condenser type vibration acceleration sensor on the wing (9).
3. a kind of power spectrum density detection device according to claim 1, it is characterised in that: the noise measuring instrument
(1) leading exterior surface is equipped with liquid crystal display, and the end of noise measuring instrument (1) is equipped with output interface, the noise measuring instrument
(1) internal to be equipped with communication device, memory, signal processor.
4. a kind of power spectrum density detection device according to claim 1, it is characterised in that: the two of the case lid (2)
End lateral wall offers sawtooth, and is intermeshed between the huge tooth of case lid (2) and mill pinion (8).
5. a kind of power spectrum density detection device according to claim 3, it is characterised in that: on the clamping plate (10) and
Noise measuring instrument (1) fitting is pasted with cystosepiment on one side, and the inside of cystosepiment is in honeycomb structure.
6. a kind of power spectrum density detection device according to claim 1, it is characterised in that: the bottom for grabbing foot (7)
End cap part has plastics bitch, and the length of bitch is not less than 2cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821641284.2U CN209014134U (en) | 2018-10-10 | 2018-10-10 | A kind of power spectrum density detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821641284.2U CN209014134U (en) | 2018-10-10 | 2018-10-10 | A kind of power spectrum density detection device |
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| Publication Number | Publication Date |
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| CN209014134U true CN209014134U (en) | 2019-06-21 |
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ID=66838015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201821641284.2U Active CN209014134U (en) | 2018-10-10 | 2018-10-10 | A kind of power spectrum density detection device |
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| CN (1) | CN209014134U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987168A (en) * | 2019-12-20 | 2020-04-10 | 中海外交通建设有限公司 | House construction ground noise detection device convenient to installation |
| CN111780864A (en) * | 2020-05-29 | 2020-10-16 | 朱法宪 | Low-frequency noise detection device and use method thereof |
-
2018
- 2018-10-10 CN CN201821641284.2U patent/CN209014134U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987168A (en) * | 2019-12-20 | 2020-04-10 | 中海外交通建设有限公司 | House construction ground noise detection device convenient to installation |
| CN111780864A (en) * | 2020-05-29 | 2020-10-16 | 朱法宪 | Low-frequency noise detection device and use method thereof |
| CN111780864B (en) * | 2020-05-29 | 2022-07-01 | 深圳市有嘉科技有限公司 | Low-frequency noise detection device and use method thereof |
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