CN111780851A - Noise monitoring device and method for miniature speed reduction motor - Google Patents
Noise monitoring device and method for miniature speed reduction motor Download PDFInfo
- Publication number
- CN111780851A CN111780851A CN202010648160.2A CN202010648160A CN111780851A CN 111780851 A CN111780851 A CN 111780851A CN 202010648160 A CN202010648160 A CN 202010648160A CN 111780851 A CN111780851 A CN 111780851A
- Authority
- CN
- China
- Prior art keywords
- motor
- pickup
- power supply
- speed reduction
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
- G01H1/12—Measuring characteristics of vibrations in solids by using direct conduction to the detector of longitudinal or not specified vibrations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
- G01H1/003—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention provides a noise monitoring device and a method for a miniature speed reduction motor, which are used for solving the problems that the noise monitoring precision of the miniature speed reduction motor is low and the noise source cannot be synchronously or asynchronously monitored at multiple positions in the prior art; the motor tool and the pickup mounting plate are fixed on the base, the motor tool is provided with a motor mounting portion capable of being matched with a motor shell, the pickup is arranged on the motor mounting portion and can be attached to the motor shell, the pickup is arranged on the pickup mounting plate and can be attached to the motor reducer shell, the motor tool is used for detecting noise of a motor reducer, the external power supply is arranged on one side of the motor tool, the motor power supply can be in butt joint with the external power supply, and the pickup is connected with an upper computer.
Description
Technical Field
The invention relates to the technical field of miniature speed reducing motor performance testing, in particular to a miniature speed reducing motor noise monitoring device and method.
Background
The miniature speed reducing motor has wide application in the production of automobile parts, is one of very important parts of an automobile, and is required to be subjected to noise quality inspection in the production process of the automobile parts. Factors of noise generation, such as dimensional accuracy of the motor shaft, assembly accuracy of the motor shaft and the bearing, assembly accuracy of the motor bearing and the housing, positional accuracy between the bearings, viscosity of lubricating oil used for the bearing, assembly accuracy of the motor gear case, viscosity of lubricating oil of the motor gear case, and the like, are also relatively numerous and complicated. The conventional mode is that a technical worker listens to the motor noise at the subjective ear of a mute room, and whether the motor noise reaches the quality control standard or not is judged according to experience; or measuring the noise decibel value by adopting a decibel meter. The conventional methods and tools have low detection precision and efficiency, time and labor waste and high cost, and cannot accurately find a noise source by multi-position synchronous or asynchronous measurement.
Disclosure of Invention
The invention provides a device and a method for monitoring noise of a miniature speed reduction motor, which are used for solving the problems that the noise monitoring precision of the miniature speed reduction motor is low and the noise source cannot be synchronously or asynchronously monitored at multiple positions in the prior art.
The technical scheme of the noise monitoring and analyzing device for the miniature speed reducing motor is as follows: the pickup device comprises a base, a motor tool, a pickup mounting plate, a pickup, an external power supply and an upper computer; the motor tool and the pickup mounting plate are fixed on the base, the motor tool is provided with a motor mounting portion capable of being matched with a motor shell, the pickup is arranged on the motor mounting portion and can be attached to the motor shell, the pickup is arranged on the pickup mounting plate and can be attached to the motor reducer shell, the motor tool is used for detecting noise of a motor reducer, the external power supply is arranged on one side of the motor tool, the motor power supply can be in butt joint with the external power supply, and the pickup is connected with an upper computer.
Preferably as above-mentioned scheme, the motor installation department of motor frock is for locating a through-hole of motor frock central authorities, and one of them a set of relative lateral wall of through-hole inner wall is the face of cylinder, and a set of relative lateral wall is the plane in addition, the through-hole inner wall can cooperate with motor housing, two relative planes respectively are equipped with a pickup mounting hole in the through-hole, respectively be equipped with a pickup in the pickup mounting hole, the terminal surface of gathering sound information on the pickup can laminate with motor housing lateral wall.
Preferably as above-mentioned scheme, the position just opposite under the terminal surface under with the motor frock is seted up flutedly on the base, be equipped with the adapter in the recess, the terminal surface of gathering sound information on the adapter is up, can laminate with the motor shaft end.
Preferably, the lower end of the external power supply is fixed on the power supply support, the power supply support is fixed on the base, and the external power supply is provided with two vertically upward electrode contact pins for being connected with a motor power supply.
Preferably as above-mentioned scheme, adapter mounting panel upper portion is equipped with an adapter mounting hole, be provided with the adapter in the adapter mounting hole, the terminal surface of gathering sound information on the adapter can be laminated with the motor reducer shell towards motor fixture one side for detect the motor reducer noise.
Preferably, an annular air bag is sleeved on an outer circle of one side of the end face of the sound pick-up for collecting sound information.
The technical scheme of the noise monitoring method of the miniature speed reducing motor is as follows: pick-up devices are respectively arranged on two side faces of the shell of the miniature speed reduction motor, at the shaft end and on the side face of the shell of the speed reducer, so that the end faces of the pick-up devices for collecting sound information are attached to corresponding detection faces, and after the starting motor runs, noise data of corresponding parts of the miniature speed reduction motor and the speed reducer are monitored through the pick-up devices and are transmitted to an upper computer for analysis and processing.
Preferably, the plurality of sound collectors can monitor the electrode shell, the electrode shaft end and the reducer shell synchronously or asynchronously.
The beneficial effect of above-mentioned scheme lies in:
(1) by adopting the technical scheme of the invention, a mute room is not needed for monitoring the noise of the miniature speed reducing motor, data can be sampled at multiple working conditions and multiple points, the data can be accurately quantized and judged, a noise source can be accurately found, and the data can be digitally analyzed to detect defective products; and the bad reasons are found out, the improvement basis is provided for the production of the miniature speed reducing motor, and the generation of defective products is fundamentally eliminated.
(2) According to the technical scheme, the annular air bag is arranged on the excircle of the sound pick-up probe, so that the sound pick-up is in flexible contact with a corresponding tool part, vibration interference is reduced, and data acquisition precision of the sound pick-up is improved.
Drawings
Fig. 1 is a schematic structural diagram of a miniature speed reduction motor according to the present invention.
Fig. 2 and 3 are schematic structural views of the assembly of the present invention with a miniature speed reduction motor.
Fig. 4 and 5 are schematic structural views of the present invention.
Fig. 6 is a schematic structural view of the present invention without a microphone.
Fig. 7 and 8 are schematic structural views of the sound pickup according to the present invention.
Wherein, the names corresponding to the reference numbers in the drawings are:
1-base, 11-bottom plate groove, 2-motor tool, 3-sound pick-up mounting plate, 4-sound pick-up, 41-end surface for collecting sound information on sound pick-up, 42-annular air bag, 5-external power supply, 51-electrode pin, 52-power supply support, 6-motor shell, 61-motor shaft end, 7-motor reducer shell and 8-sound pick-up mounting hole.
Detailed Description
Embodiments of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 2 and 3, the present embodiment includes a base 1, a motor fixture 2, a sound pickup mounting plate 3, a sound pickup 4, an external power supply 5, and an upper computer; motor frock 2 and adapter mounting panel 3 are fixed on base 1, be equipped with on the motor frock 2 can with 6 complex motor installation departments of motor housing, be equipped with adapter 4 on the motor installation department, adapter 4 can laminate with motor housing 6, be equipped with adapter 4 on the adapter mounting panel 3, locate motor frock 2 one side, can laminate with motor reducer shell 7 for detect motor reducer noise, external power supply 5 locates motor frock 2 one side, and motor power supply can dock with external power supply 5, adapter 4 and host computer are connected.
In this embodiment, the motor installation department of motor frock 2 is for locating a through-hole of motor frock 2 central authorities, and one of them a set of relative lateral wall of through-hole inner wall is the face of cylinder, and another a set of relative lateral wall is the plane, the through-hole inner wall can cooperate with motor housing 6, two relative planes respectively are equipped with a pickup mounting hole 8 in the through-hole, respectively be equipped with a pickup 4 in the pickup mounting hole 8, the terminal surface 41 of gathering sound information on the pickup can laminate with motor housing 6 lateral walls.
In this embodiment, recess 11 has been seted up with the position that the terminal surface is just relative under the motor frock 2 on the base 1, be equipped with adapter 4 in the recess 11, the terminal surface 41 of gathering sound information on the adapter up, can laminate with motor shaft end 61.
In this embodiment, the lower end of the external power supply 5 is fixed on a power supply support 52, the power supply support 52 is fixed on the base 1, and two vertical upward electrode pins 51 are arranged on the external power supply 5 and used for being connected with a motor power supply.
In this embodiment, 3 upper portions of adapter mounting panel are equipped with an adapter mounting hole 8, be provided with adapter 4 in the adapter mounting hole 8, the terminal surface 41 of gathering sound information on the adapter can be laminated with motor reducer shell 7 towards motor frock 2 one side for detect the motor reducer noise.
In this embodiment, the outer circumference of the sound pickup on the side of the end surface 41 for collecting sound information is provided with an annular air bag 42.
The working principle of the structure is as follows:
assembling the assembly of the miniature speed reducing motor and the speed reducer with a monitoring device, wherein a miniature speed reducing motor shell 6 is inserted into a central through hole of a motor tool 2, the plane and the cylindrical surface of an inner hole are respectively matched with the corresponding surfaces of the miniature speed reducing motor shell 6, the end surfaces 41 for collecting sound information on two sound pickups at the inner side of the motor tool 2 are respectively attached to the motor shell 6, the end surface 41 for collecting sound information on the sound pickups in a groove of a base 1 at the bottom of the motor tool 2 is attached to the shaft end 61 of the miniature speed reducing motor, meanwhile, the side surface of the speed reducer shell 7 is in fit with the end surface 41 of the sound pick-up on the sound pick-up mounting plate 3 for collecting sound information, the four sound pickups 4 respectively monitor the noise of the attached parts and collect the noise data, and the data are transmitted back to the upper computer for data analysis and processing after passing through the amplifier and the data converter, and the data processing result is displayed by the upper computer. The upper computer is connected with a motor power supply module and a motor control module. In this process, the sound pickup 4 can monitor the electrode housing, the electrode shaft end and the reducer housing 7 synchronously or asynchronously.
In the above embodiment, the circular air bag 42 is designed on the outer circle of the probe head drumhead side of the sound pickup 4, and the circular air bag 42 is used for forming a buffer structure between the sound pickup 4 and the corresponding side surface of the sound pickup mounting hole 8, so that the sound pickup 4 and the corresponding tool (the base 1, the motor tool 2 and the sound pickup mounting plate 3) form flexible connection, and the data acquisition precision of the sound pickup 4 is effectively ensured.
In the above embodiment, when the motor is inserted into the central through hole of the motor tool 2, the power jack of the motor can be matched with the electrode pin 51 of the external power supply 5 on one side of the motor tool 2, as shown in fig. 2.
In summary, the technical scheme of the embodiment realizes automatic monitoring of the noise of the miniature speed reduction motor, does not need a mute room, can sample data synchronously or asynchronously at multiple points under multiple working conditions, accurately quantizes and judges, accurately finds a noise source, digitally analyzes and detects defective products; and the bad reasons are found out, the improvement basis is provided for the production of the miniature speed reducing motor, and the generation of defective products is fundamentally eliminated.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a miniature gear motor noise monitoring devices which characterized in that: the pickup device comprises a base, a motor tool, a pickup mounting plate, a pickup, an external power supply and an upper computer; the motor tool and the pickup mounting plate are fixed on the base, the motor tool is provided with a motor mounting portion capable of being matched with a motor shell, the pickup is arranged on the motor mounting portion and can be attached to the motor shell, the pickup is arranged on the pickup mounting plate and can be attached to the motor reducer shell, the motor tool is used for detecting noise of a motor reducer, the external power supply is arranged on one side of the motor tool, the motor power supply can be in butt joint with the external power supply, and the pickup is connected with an upper computer.
2. The noise monitoring device for the miniature speed reduction motor according to claim 1, wherein: the motor installation department of motor frock is a through-hole of locating motor frock central authorities, and one of them a set of relative lateral wall of through-hole inner wall is the face of cylinder, and a set of relative lateral wall is the plane in addition, the through-hole inner wall can cooperate with motor housing, two relative planes respectively are equipped with a pickup mounting hole in the through-hole, respectively be equipped with a pickup in the pickup mounting hole, the terminal surface of gathering sound information on the pickup can laminate with motor housing lateral wall.
3. The noise monitoring device for the miniature speed reduction motor according to claim 2, wherein: the position just relative with terminal surface under the motor frock is seted up flutedly on the base, be equipped with the adapter in the recess, the terminal surface of gathering sound information on the adapter up, can laminate with the motor shaft end.
4. The noise monitoring device for the miniature speed reduction motor according to claim 1, wherein: the lower end of the external power supply is fixed on the power supply support, the power supply support is fixed on the base, and two vertical and upward electrode contact pins are arranged on the external power supply and are used for being connected with a motor power supply.
5. The noise monitoring device for the miniature speed reduction motor according to claim 1, wherein: adapter mounting panel upper portion is equipped with an adapter mounting hole, be provided with the adapter in the adapter mounting hole, the terminal surface of gathering sound information on the adapter can be laminated with the motor reducer shell towards motor fixture one side for detect motor reducer noise.
6. The noise monitoring device of a miniature speed reduction motor according to any one of claims 1 to 5, wherein: the excircle cover of the terminal surface one side of gathering sound information on the adapter is equipped with annular gasbag.
7. A noise monitoring method for a miniature speed reduction motor is characterized by comprising the following steps: pick-up devices are respectively arranged on two side faces of the shell of the miniature speed reduction motor, at the shaft end and on the side face of the shell of the speed reducer, so that the end faces of the pick-up devices for collecting sound information are attached to corresponding detection faces, and after the starting motor runs, noise data of corresponding parts of the miniature speed reduction motor and the speed reducer are monitored through the pick-up devices and are transmitted to an upper computer for analysis and processing.
8. The noise monitoring method for the miniature speed reduction motor according to claim 7, wherein: the sound pick-up can be used for synchronously or asynchronously monitoring the electrode shell, the electrode shaft end and the reducer shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010648160.2A CN111780851A (en) | 2020-07-07 | 2020-07-07 | Noise monitoring device and method for miniature speed reduction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010648160.2A CN111780851A (en) | 2020-07-07 | 2020-07-07 | Noise monitoring device and method for miniature speed reduction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111780851A true CN111780851A (en) | 2020-10-16 |
Family
ID=72758295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010648160.2A Pending CN111780851A (en) | 2020-07-07 | 2020-07-07 | Noise monitoring device and method for miniature speed reduction motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111780851A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020083779A1 (en) * | 2000-10-20 | 2002-07-04 | Takayuki Narita | Bearing test method, bearing test device, bearing monitoring device and storage device |
| CN102788639A (en) * | 2012-05-16 | 2012-11-21 | 奇瑞汽车股份有限公司 | Device and method for testing noise of electric automobile reducer |
| CN203083697U (en) * | 2013-02-06 | 2013-07-24 | 湖北行星传动设备有限公司 | Vertical-type rapid installation speed reducer noise test board |
| WO2014001143A2 (en) * | 2012-06-29 | 2014-01-03 | Thyssenkrupp System Engineering Gmbh | Test method and test stand for detecting noise, vibration, and harshness emissions (nvh) of a motor unit |
| CN203929903U (en) * | 2014-05-30 | 2014-11-05 | 瀚鹏龙（上海）自动化设备有限公司 | Test table |
| CN105136284A (en) * | 2015-08-24 | 2015-12-09 | 奇瑞汽车股份有限公司 | Automotive blower assembly noise test system and method thereof |
| CN205102914U (en) * | 2015-11-13 | 2016-03-23 | 浙江省东阳市诚基电机有限公司 | Miniature vibrating motor noise shakes and feels test fixture |
| CN205879225U (en) * | 2016-07-28 | 2017-01-11 | 深圳市雷赛智能控制股份有限公司 | Independent detection platform of encoder |
| CN207114729U (en) * | 2017-07-28 | 2018-03-16 | 安徽皖南电机股份有限公司 | The test fixture of motor |
| CN108037455A (en) * | 2018-01-08 | 2018-05-15 | 河南凯邦电机有限公司 | Motor detection system |
| CN109405959A (en) * | 2018-10-16 | 2019-03-01 | 格力电器（武汉）有限公司 | motor noise testing system and method |
| CN209117176U (en) * | 2018-12-20 | 2019-07-16 | 南京林业大学 | For detecting the vibrating data collection test-bed of light modulation motor device abnormal sound |
| CN210072014U (en) * | 2019-04-28 | 2020-02-14 | 常州市元瑞电机科技有限公司 | Motor detects quick replacement frock |
-
2020
- 2020-07-07 CN CN202010648160.2A patent/CN111780851A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020083779A1 (en) * | 2000-10-20 | 2002-07-04 | Takayuki Narita | Bearing test method, bearing test device, bearing monitoring device and storage device |
| CN102788639A (en) * | 2012-05-16 | 2012-11-21 | 奇瑞汽车股份有限公司 | Device and method for testing noise of electric automobile reducer |
| WO2014001143A2 (en) * | 2012-06-29 | 2014-01-03 | Thyssenkrupp System Engineering Gmbh | Test method and test stand for detecting noise, vibration, and harshness emissions (nvh) of a motor unit |
| CN203083697U (en) * | 2013-02-06 | 2013-07-24 | 湖北行星传动设备有限公司 | Vertical-type rapid installation speed reducer noise test board |
| CN203929903U (en) * | 2014-05-30 | 2014-11-05 | 瀚鹏龙（上海）自动化设备有限公司 | Test table |
| CN105136284A (en) * | 2015-08-24 | 2015-12-09 | 奇瑞汽车股份有限公司 | Automotive blower assembly noise test system and method thereof |
| CN205102914U (en) * | 2015-11-13 | 2016-03-23 | 浙江省东阳市诚基电机有限公司 | Miniature vibrating motor noise shakes and feels test fixture |
| CN205879225U (en) * | 2016-07-28 | 2017-01-11 | 深圳市雷赛智能控制股份有限公司 | Independent detection platform of encoder |
| CN207114729U (en) * | 2017-07-28 | 2018-03-16 | 安徽皖南电机股份有限公司 | The test fixture of motor |
| CN108037455A (en) * | 2018-01-08 | 2018-05-15 | 河南凯邦电机有限公司 | Motor detection system |
| CN109405959A (en) * | 2018-10-16 | 2019-03-01 | 格力电器（武汉）有限公司 | motor noise testing system and method |
| CN209117176U (en) * | 2018-12-20 | 2019-07-16 | 南京林业大学 | For detecting the vibrating data collection test-bed of light modulation motor device abnormal sound |
| CN210072014U (en) * | 2019-04-28 | 2020-02-14 | 常州市元瑞电机科技有限公司 | Motor detects quick replacement frock |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107052908B (en) | Cutter performance detection device and detection method | |
| CN109916620B (en) | Gear drive noise detection and analysis system | |
| CN105334052A (en) | Main speed-reducer assembly quality detection method | |
| CN103336266A (en) | Portable transformer substation noise imaging positioning detection device | |
| CN111855119A (en) | Transmission assembly vibration detection method | |
| CN106441194B (en) | Differential casing hemispherical diameter measurement nonstandard cubing and its measurement method | |
| CN111780851A (en) | Noise monitoring device and method for miniature speed reduction motor | |
| CN106403880B (en) | Method and device for detecting clearance between compressor rotor and stator | |
| CN218156504U (en) | Portable fault diagnosis instrument based on sound vibration signal | |
| CN215116630U (en) | Circuit board performance detection device | |
| CN112557033B (en) | High-precision thrust ball bearing multi-parameter test platform capable of conveniently disassembling and assembling samples | |
| WO1998023938A1 (en) | A quality control system for testing mechanical devices | |
| CN112504440B (en) | Online monitoring test device for vibration of rotary machine | |
| CN210834754U (en) | Vibration flat plate electrode connector | |
| CN209197659U (en) | A kind of quick test fixture of eccentric shaft concentricity | |
| CN204008137U (en) | A kind of rotary machinery fault diagnosis platform | |
| CN209910816U (en) | Sensor test bench | |
| CN212721382U (en) | Gauge needle straightness gauge detection tool | |
| CN112815886A (en) | Wall thickness measuring system for thin-wall revolving body workpiece | |
| CN210242653U (en) | Sieve case actuating arm inspection gauge | |
| CN219255627U (en) | Joint assembly detecting system | |
| CN216523839U (en) | Sucker flatness detection device | |
| CN214149741U (en) | High-temperature environment vibration fatigue test system | |
| CN219798152U (en) | Integral detection device for multi-arc castings | |
| CN101165461A (en) | Speed/acceleration vibration system checking instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201016 |