CN205404142U - Mechanical breakdown acoustics detector - Google Patents
Mechanical breakdown acoustics detector Download PDFInfo
- Publication number
- CN205404142U CN205404142U CN201620159145.0U CN201620159145U CN205404142U CN 205404142 U CN205404142 U CN 205404142U CN 201620159145 U CN201620159145 U CN 201620159145U CN 205404142 U CN205404142 U CN 205404142U
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- sleeve
- sonic transducer
- pin
- listen
- mechanical breakdown
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Abstract
The utility model provides a mechanical breakdown acoustics detector, includes: the sleeve, the sleeve is the tube -shape, the one end opening, and the other end is equipped with the through -hole, the sonic transducer, including an entering tone hole, the sonic transducer is followed the sleeve axis is arranged in the sleeve, listen the needle, it is shaft -like to listen the needle to be, and one end is followed telescopic through -hole is followed it is interior and just right that the sleeve is stretched into to the sleeve axis the entering tone hole, the other end of listening the needle stretches out outside the sleeve, the shock insulation cover, the shock insulation cover is arranged in in the sleeve, be used for fixing sonic transducer in the sleeve with listen the needle to stretch into the one end in the sleeve, and terminal, the terminal with the sonic transducer electricity is connected or light is connected. This detector carries out mechanical breakdown and detects through surveying mechanical noise, and it is strong to have the commonality, detects fast, good reliability, simple structure, be convenient for produce, advantage such as with low costs, be suitable for extensive popularization.
Description
Technical field
This utility model belongs to fault detection technique field, particularly to the mechanical breakdown Acoustic detection instrument of a kind of mechanical disorder detection for having rotational motion mechanism.
Background technology
In industrial production activities, a large amount of exist the machinery with rotational motion mechanism, and such as wind-driven generator and various heavy-duty motor, the normal operation of these machineries is most important for commercial production.Such as, in thermal power plant, there is substantial amounts of motor at each production link, and generating set, these motors are typically necessary long time continuous working, thus providing electric power energy for society, once motor breaks down, supply of electric power will be directly affected, produce the economic loss that tool is big.Therefore the daily monitoring of these machineries is extremely important, find fault ahead of time, fix a breakdown in time, thus ensureing that what produce is smoothed out.
Existing detection means includes: the electrical fault based on electrical detection method detects, fault detect is realized by measuring the physical quantitys such as electric current, voltage, inductance, resistance, phase angle, this method can only detect for electrical fault, and for by motor-driven frame for movement, this method cannot be suitable for；Fault detection system based on vibrating sensor, this method needs to be pasted on vibrating sensor on tested frame for movement body, fault detect is carried out by gathering vibration signal, this method there are certain requirements for tested structure surface, so that stickup vibrating sensor, for the various factories with rotational motion mechanism, the motor that all size in such as thermal power plant differs, the test point position of regulation is had especially for motor bearings fault detect, this detection system based on vibrating sensor does not have universality, in addition, what this detection system obtained is the vibration signal of structure, this can be subject to interior other pendulums interference of whole environment, it is unfavorable for the discovery of fault.Due to existing technological means Problems existing, people commonly use ancient and reliable method and detect, namely a metal bar is utilized, the tested frame for movement body of end thereof contacts of this metal bar, the other end is near human ear, and by carrying out fault detect with ear recognition rotational structure at the sounding of rotation process, but this method is completely dependent on artificial and experience, being unfavorable for standardized operation, work efficiency is low.
Utility model content
In view of this, the purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of mechanical breakdown Acoustic detection instrument.
For achieving the above object, this utility model provides a kind of mechanical breakdown Acoustic detection instrument, including:
Sleeve, described sleeve is in a cylindrical shape, one end open, and the other end is provided with through hole；
Sonic transducer, including a tone-entering hole, described sonic transducer is placed in sleeve along described sleeve axis；
Listen pin, described in listen pin be shaft-like, one end is stretched in sleeve and just to described tone-entering hole from the through hole of described sleeve along described sleeve axis, and the other end stretches out outside described sleeve；
Shock insulation set, described shock insulation is placed in described sleeve, for fixing sonic transducer in described sleeve and described listening pin to stretch into the one end in sleeve；And
Terminal, described terminal is connected with the electrical connection of described sonic transducer or light.
According to a kind of specific embodiments of the present utility model, described sonic transducer is the one in condenser type sonic transducer, piezoelectricity sonic transducer or fibre-optical acoustic sensor, or its combination.
According to a kind of specific embodiments of the present utility model, described in listen pin to be made up of a metallic rod and a permanent magnet, described permanent magnet is rigidly secured to one end away from sleeve of metallic rod.
According to a kind of specific embodiments of the present utility model, described in listen distance that pin stretches between the end face of sleeve one end and the tone-entering hole of described sonic transducer less than 1/2nd of described length sleeve.
According to a kind of specific embodiments of the present utility model, sleeve inner described in its complementary space except described sleeve inner space between the tone-entering hole of the described end face listening pin to stretch into sleeve one end and described sonic transducer is filled with sound-absorbing material.
According to a kind of specific embodiments of the present utility model, above-mentioned mechanical breakdown Acoustic detection instrument also includes locking closure, and described locking closure is installed on the open at one end of described sleeve.
According to a kind of specific embodiments of the present utility model, above-mentioned mechanical breakdown Acoustic detection instrument also includes taper knob, is installed on outside described sleeve.
According to a kind of specific embodiments of the present utility model, above-mentioned mechanical breakdown Acoustic detection instrument also includes earphone, and described earphone is connected with described terminal.
It addition, this utility model also provides for a kind of mechanical breakdown Acoustic detection instrument, including:
Sleeve, described sleeve is in a cylindrical shape, one end open, and the other end is provided with through hole；
Sonic transducer, including a tone-entering hole, described sonic transducer is placed in sleeve along described sleeve axis；
Listen pin, described in listen pin be shaft-like, one end is stretched in sleeve and just to described tone-entering hole from the through hole of described sleeve along described sleeve axis, described in listen the other end of pin to stretch out outside described sleeve；
Shock insulation set, described shock insulation is placed in described sleeve, for fixing sonic transducer in described sleeve and described listening pin to stretch into the one end in sleeve.
By technique scheme, having the beneficial effects that of mechanical breakdown Acoustic detection instrument of the present utility model:
(1) pin is listened directly to contact rotating mechanism by of the present utility model, compared with technology ratio, it directly utilizes rotating mechanism rotation audible signal and carries out fault detect, there is versatility good, the reliable advantage of science, can be widely applied to the fault detect of the relevant device in the various plant equipment with rotating mechanism, particularly wind-driven generator and thermal power plant；
(2) composition simple in construction of the present utility model, be easy to produce, cost low, be suitable for being widely popularized；
(3) by arranging earphone, make the acoustical signal that sonic transducer receives can directly be monitored by earphone by testing staff by terminal, the reliability finding fault can be further ensured that；
(4) detector of the present utility model is applicable to multiple occasion, improves the versatility of detection equipment, improves work efficiency, provides scientific basis for fault detect.
Accompanying drawing explanation
Fig. 1 is the mechanical breakdown Acoustic detection instrument structural representation of the specific embodiment of the invention one；
Fig. 2 is the structural representation of the mechanical breakdown pleasant to the ear pin of Acoustic detection instrument of the specific embodiment of the invention two；
Fig. 3 is another structural representation of the mechanical breakdown pleasant to the ear pin of Acoustic detection instrument of the specific embodiment of the invention three.
Detailed description of the invention
This utility model provides a kind of mechanical breakdown Acoustic detection instrument, including: sleeve, described sleeve is in a cylindrical shape, one end open, and the other end is provided with through hole；Sonic transducer, including a tone-entering hole, described sonic transducer is placed in sleeve along described sleeve axis；Listen pin, described in listen pin be shaft-like, one end is stretched in sleeve and just to described tone-entering hole from the through hole of described sleeve along described sleeve axis, and the other end stretches out outside described sleeve；Shock insulation set, described shock insulation is placed in described sleeve, for fixing sonic transducer in described sleeve and described listening pin to stretch into the one end in sleeve；And terminal, described terminal is connected with the electrical connection of described sonic transducer or light.
Material for each parts selects, it is preferred that the material of described sleeve is the one in metal, plastics or hardwood, or its combination.Preferably, described in listen pin be a metal straight rod, it is further preferred that described in listen pin to be made up of a metal straight rod and a permanent magnet, described permanent magnet is rigidly secured to one end away from sleeve of metal straight rod.Preferably, the material of described vibration isolation set is the one in rubber, plastics, cork or foam metal, or its combination.
For listening the set-up mode of pin, it is preferred that described in listen distance that pin stretches between the end face of sleeve one end and the tone-entering hole of described sonic transducer less than 1/2nd of described length sleeve.
For terminal, it is preferred that terminal has signal and sends and reception, data process and storage and display function.
Kind for sonic transducer, it is preferred that described sonic transducer is the one in condenser type sonic transducer, piezoelectricity sonic transducer or fibre-optical acoustic sensor, or its combination；It is further preferred that be condenser type sonic transducer.
For other parts that Acoustic detection instrument comprises, it is preferred that including locking closure, described locking closure is installed on the open at one end of described sleeve；It is also preferred that include taper knob, be installed on outside described sleeve；It is also preferred that include earphone, described earphone is connected with described terminal.
For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the utility model is described in further detail.
Detailed description of the invention one
In conjunction with Fig. 1, this detailed description of the invention, a kind of mechanical breakdown Acoustic detection instrument being described, it includes: sleeve 1, and pin 3 listened by sonic transducer 2, vibration isolation set 4a and 4b, terminal 8.Described sleeve 1 is in a cylindrical shape, and at least one end opening, the other end are provided with through hole；Described sonic transducer 2 is placed in sleeve 1 along sleeve 1 axis, and overlaps 4a and sleeve 1 through described vibration isolation and fix and be connected；Described listen pin 3 to stretch in sleeve 1 along sleeve 1 axis from sleeve 1 one end, make to listen pin end face just to sonic transducer 2 in sleeve 1；Described listening pin 3 to be overlapped 4b and sleeve 1 by described vibration isolation to fix and be connected, described terminal 8 electrically connects with described sonic transducer 2 or light is connected；Also include: sleeve interior space is filled with flexible, porous material 6, be filled in sleeve 1 internal；Lower locking closure 5a, is installed on the opening of sleeve 1；Taper knob 7, is installed on outside sleeve 1, for improving the comfort level that testing staff holds；Earphone 9, is connected with terminal 8, monitors for testing staff in detection process.Its middle sleeve is made by stainless steel material, for both ends open structure, is separately installed with locking closure 5a and locking closure 5b, and sonic transducer is fibre-optical acoustic sensor, and listening pin is aciculiform metal straight rod, and flexible, porous material is sponge.
During use, testing staff holds and pin will be listened away from the tested frame for movement body of end thereof contacts of sleeve, the acoustical signal that in machinery, rotational structure produces because of rotation is by listening pin to be transmitted in sleeve, this acoustical signal is received by sonic transducer, and it is transferred to terminal, store, analyze, carry out breakdown judge；Meanwhile, the acoustical signal that sonic transducer receives can directly be monitored by earphone by testing staff by terminal, can be further ensured that the reliability finding fault.Signal in detection process can be stored, and accomplishes detection dates back, it is achieved standardized management.
Detailed description of the invention two
This detailed description of the invention differs only in detailed description of the invention one, as in figure 2 it is shown, listen pin 3 for metallic rod, it is bending away from one end of sleeve.
Detailed description of the invention three
This detailed description of the invention is distinctive in that with a kind of mechanical breakdown Acoustic detection instrument described in detailed description of the invention one, as it is shown on figure 3, listen pin 3 to form for metal straight rod and a permanent magnet 301, permanent magnet 301 is fixed on the one end away from sleeve listening pin.
The above; it is only this utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; technical scheme and utility model design thereof according to this are equal to replacement or are changed, and all should be encompassed within protection domain of the present utility model.
Claims (9)
1. a mechanical breakdown Acoustic detection instrument, it is characterised in that including:
Sleeve, described sleeve is in a cylindrical shape, one end open, and the other end is provided with through hole；
Sonic transducer, including a tone-entering hole, described sonic transducer is placed in sleeve along described sleeve axis；
Listen pin, described in listen pin be shaft-like, one end is stretched in sleeve and just to described tone-entering hole from the through hole of described sleeve along described sleeve axis, described in listen the other end of pin to stretch out outside described sleeve；
Shock insulation set, described shock insulation is placed in described sleeve, for fixing sonic transducer in described sleeve and described listening pin to stretch into the one end in sleeve；And
Terminal, described terminal is connected with the electrical connection of described sonic transducer or light.
2. mechanical breakdown Acoustic detection instrument according to claim 1, it is characterised in that described sonic transducer is the one in condenser type sonic transducer, piezoelectricity sonic transducer or fibre-optical acoustic sensor, or its combination.
3. mechanical breakdown Acoustic detection instrument according to claim 1, it is characterised in that described in listen pin to be made up of a metallic rod and a permanent magnet, described permanent magnet is rigidly secured to one end away from sleeve of metallic rod.
4. mechanical breakdown Acoustic detection instrument according to claim 1, it is characterised in that described in listen distance that pin stretches between the end face of sleeve one end and the tone-entering hole of described sonic transducer less than 1/2nd of described length sleeve.
5. mechanical breakdown Acoustic detection instrument according to claim 1, it is characterized in that, sleeve inner described in its complementary space except described sleeve inner space between the tone-entering hole of the described end face listening pin to stretch into sleeve one end and described sonic transducer is filled with sound-absorbing material.
6. mechanical breakdown Acoustic detection instrument according to claim 1, it is characterised in that also including locking closure, described locking closure is installed on the open at one end of described sleeve.
7. mechanical breakdown Acoustic detection instrument according to claim 1, it is characterised in that also include taper knob, be installed on outside described sleeve.
8. mechanical breakdown Acoustic detection instrument according to claim 1, it is characterised in that also including earphone, described earphone is connected with described terminal.
9. a mechanical breakdown Acoustic detection instrument, it is characterised in that including:
Sleeve, described sleeve is in a cylindrical shape, one end open, and the other end is provided with through hole；
Sonic transducer, including a tone-entering hole, described sonic transducer is placed in sleeve along described sleeve axis；
Listen pin, described in listen pin be shaft-like, one end is stretched in sleeve and just to described tone-entering hole from the through hole of described sleeve along described sleeve axis, described in listen the other end of pin to stretch out outside described sleeve；
Shock insulation set, described shock insulation is placed in described sleeve, for fixing sonic transducer in described sleeve and described listening pin to stretch into the one end in sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620159145.0U CN205404142U (en) | 2016-03-02 | 2016-03-02 | Mechanical breakdown acoustics detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620159145.0U CN205404142U (en) | 2016-03-02 | 2016-03-02 | Mechanical breakdown acoustics detector |
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| CN205404142U true CN205404142U (en) | 2016-07-27 |
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| CN201620159145.0U Active CN205404142U (en) | 2016-03-02 | 2016-03-02 | Mechanical breakdown acoustics detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784394A (en) * | 2016-03-02 | 2016-07-20 | 中国科学院电子学研究所 | Mechanical fault acoustic detector |
-
2016
- 2016-03-02 CN CN201620159145.0U patent/CN205404142U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784394A (en) * | 2016-03-02 | 2016-07-20 | 中国科学院电子学研究所 | Mechanical fault acoustic detector |
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