CN102410813B - Motor jolt detection device and method - Google Patents
Motor jolt detection device and method Download PDFInfo
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- CN102410813B CN102410813B CN201110410930.0A CN201110410930A CN102410813B CN 102410813 B CN102410813 B CN 102410813B CN 201110410930 A CN201110410930 A CN 201110410930A CN 102410813 B CN102410813 B CN 102410813B
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Abstract
The invention discloses a motor jolt detection device. The motor jolt detection device comprises a light emission unit, a motor fixing seat, a light receiving unit, a motor starting unit and a processing unit, which are all tightly fixed on the detection device, wherein an emission port of the light emission unit corresponds to a receiving port of the light receiving unit, and the motor fixing seat is fixed between the emission port of the light emission unit and the receiving port of the light receiving unit. With the motor jolt detection device provided by the invention, non-contact motor jolt detection is realized, and rotor shaft jolt of the motor under normal work voltage is detected steadily and continuously, so that the motor jolt detection device has the advantages of rational operation, high precision and strong stability.
Description
Technical field
The present invention relates to a kind of pick-up unit and detection method, espespecially a kind of motor jitter detection apparatus and detection method.
Background technology
In the prior art, the detection that motor is beated is that operative employee plugs in and with clock gauge, detects and obtain data after rotary rotor on appliance special for detecting.Because the amount of motor is larger, motor is beated needs 100% to detect, and operative employee can often occur measuring error in detecting for a long time.Even measure also and can cause measuring error according to normal method, this Measuring origin is in input voltage, because normal input voltage is at 13V, this voltage can make motor rotate with turn/per minute of 4000-5000, so high rotating speed is difficult to fixed electrical machinery, so generally can adopt low-voltage to reduce rotating speed, test the test of like this will impact more or less beating; Also having an aspect also to have influence on measurement, is exactly clock gauge, because the pressure head of clock gauge is pressed in axle head, may reduce the amplitude of beating like this, and then affects the test result of beating, and the value recording is conventionally little than actual value.
Summary of the invention
The object of the invention is to overcome the defect of prior art, and provide a kind of motor jitter detection apparatus and detection method, realized under non-contact type motor glitch detection and normal working voltage rotor axis of electric and beated steady and continuous and detect, have operation rationally, precision is high, stability is strong, detection speed is fast, can be by advantages such as quick metering.
The technical scheme that realizes above-mentioned purpose is:
A kind of motor jitter detection apparatus of the present invention, comprising:
Be anchored on an Optical Transmit Unit, a motor fixing seat, a light receiving unit, an electric motor starting unit and a processing unit on described pick-up unit; The emission port of wherein said Optical Transmit Unit is corresponding with the receiving port of described light receiving unit, and described motor fixing seat is fixed between the emission port of described Optical Transmit Unit and the receiving port of described light receiving unit.
Above-mentioned Optical Transmit Unit comprises one or a plurality of light emitting diode and a scattering module of arranging on utilizing emitted light optical axis successively and a collimator camera lens;
Described light receiving unit comprises a telecentric optics assembly and a high-speed linear imageing sensor of arranging on described utilizing emitted light optical axis successively, and described high-speed linear imageing sensor connects described processing unit.
Above-mentioned light receiving unit further comprises one at described utilizing emitted light optical axis and is located at the optical splitter between described telecentric optics assembly and high-speed linear imageing sensor, with an image sensor that is positioned at described optical splitter refract light optical axis, described image sensor connects described processing unit.
Above-mentioned processing unit comprises an analog to digital converter, a digital edge detection process device, a central processing unit, a storer and a display of communication connection successively, and described analog to digital converter is connected with described memory communication; Described analog to digital converter is for receiving the electric signal of described light receiving unit and described electric signal being converted to digital signal; Described storer is used for storing data; Described digital edge detection process device is for the digital edge detection process of data; Described central processing unit is for the function control of described processing unit and the numerical evaluation of data; Described display is used for showing detection data.
Above-mentioned motor fixing seat comprises a casing and a push pedal, and described push pedal matches with a lateral opening of described casing, and is flexibly connected with described casing, and vertical being fastenedly connected of piston rod of described push pedal outside and a clamping cylinder; The end face of described casing forms an opening;
Described electric motor starting unit comprises:
One air cylinder support;
One power interface cylinder, described power interface cylinder is anchored on described air cylinder support;
One power interface fixed head, described power interface fixed head is vertically anchored on the piston rod of described power interface cylinder;
One external power source interface, described external power source interface is fixedly arranged on described power interface fixed head.
A kind of motor glitch detection method of the present invention, comprises the following steps:
Fix one and treat that measured motor is between an Optical Transmit Unit and a light receiving unit;
Described in startup, treat measured motor;
Described Optical Transmit Unit is launched a branch of directional light to the armature spindle of described motor, so by the image projection of the armature spindle of described motor to described light receiving unit;
Described light receiving unit receives the image of described rotor axis of electric to be measured and is to transfer to a processing unit after electric signal by described video conversion;
Electric signal show testing result described in described processing unit processes;
The described motor step to be measured of fixing further comprises:
By one, treat that measured motor puts into a motor fixing seat;
Described in adjustment, treat the placement direction of measured motor;
Receive after a trigger pip, the piston rod of a holder cylinder ejects, and holds out against described motor in holder;
Described starter motor step further comprises:
The piston rod of one power interface cylinder ejects and promotes a power interface fixed head;
Power interface on described power interface fixed head docks with the power interface of described motor;
Electric motor starting.
At above-mentioned light receiving unit reception image information and in the step of processing unit transmission of electric signals:
Described image is incident upon on a high-speed linear imageing sensor after by a telecentric optics assembly, and described high-speed linear imageing sensor transmission one first electric signal is to processing unit.
Electric signal show that testing result comprises step described in above-mentioned processing unit processes:
By an analog to digital converter, convert described the first electric signal to one first digital signal;
By a digital edge detection process device, described the first digital signal is carried out by a central processing unit, carrying out numerical value processing again after digital edge detection process, obtain and detect data;
After being stored in to a storer, described detection data send to a display;
Display shows detection data.
Above-mentioned image is incident upon respectively on described high-speed linear imageing sensor and an image sensor by an optical splitter after by a telecentric optics assembly; Described image sensor transmission one second electric signal is to processing unit;
Electric signal show that testing result further comprises step described in described processing unit processes:
By described analog to digital converter, convert described the second electric signal to one second digital signal;
Described the second digital signal is stored in to described storer and sends to described display;
Display shows the image that rotor axis of electric is beated.
Above-mentioned directional light sends radiant light also successively by obtaining after a scattering module and a collimator camera lens by one or a plurality of light emitting diode of described Optical Transmit Unit.
The present invention has been owing to having adopted above technical scheme, makes it have following beneficial effect to be:
The employing of Optical Transmit Unit and light receiving unit has realized non-contact type motor glitch detection; Motor fixing seat, push pedal and holder cylinder cooperation realized the effective controlled of monitoring motor and fixed; Sensor has been realized and has been identified the existence that whether has motor.One power interface cylinder, a power interface fixed head and power interface cylinder have been realized controllable electrical power and have been started.The employing of grating has improved the security of test, can realize safety automation and detect.Display is used for showing numerical value and the information of detecting; The employing of alarm has improved the security of system.The present invention has realized under non-contact type motor glitch detection and normal working voltage rotor axis of electric and has beated steady and continuous and detect, have advantages of operation rationally, precision is high, stability is strong.
Accompanying drawing explanation
Fig. 1 is the system architecture schematic diagram of motor jitter detection apparatus of the present invention and detection method;
Fig. 2 is the motor fixing seat of motor jitter detection apparatus of the present invention and detection method and the structural representation of electric motor starting unit;
Fig. 3 is the schematic diagram of motor jitter detection apparatus of the present invention and detection method.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Refer to Fig. 1, Fig. 3, a kind of motor jitter detection apparatus of the present invention, comprising:
Be anchored on an Optical Transmit Unit 3, a motor fixing seat 4, a light receiving unit 2, an electric motor starting unit 5 and a processing unit 9 on pick-up unit 1; Wherein the emission port of Optical Transmit Unit 3 is corresponding with the receiving port of light receiving unit 2, and motor fixing seat 4 is fixed between the emission port of Optical Transmit Unit 3 and the receiving port of light receiving unit 2.Optical Transmit Unit 3 and light receiving unit 2 are fixed on pick-up unit 1 by a support respectively.Measure the heed contacted measure technology that adopts, rely on Optical Transmit Unit 3 and light receiving unit 2 to come induction electromotor rotor axle to beat, realized non-contact type motor glitch detection.
Pick-up unit 1 forms an action pane 11, and a pair of grating 7 is anchored on the outer wall of action pane 11 dual-sides.The employing of grating 7, has realized operator motor 8 has been packed into motor fixing seat 4, and both hands leave the function of device start after grating 7 induction regions, has improved the security of test, can realize safety automation and detect.
Refer to Fig. 2, motor fixing seat 4 comprises that a casing 41 and is positioned at the push pedal (not shown) of casing 41 inside, push pedal matches with a lateral opening of casing 41, and is flexibly connected with casing 41, and vertical being fastenedly connected of piston rod of push pedal outside and a holder cylinder 6; The end face of casing 41 forms an opening 42.Motor fixing seat 4 also comprises a sensor, and sensor is anchored in casing 41.
Casing 1 adopts full encirclement form to add side holder cylinder 6 to eject fixingly, and the stability while guaranteeing to measure, has realized the effective controlled of motor 8 simultaneously and fixed.During measurement, motor 8 is put into casing 41 from opening 42, now whether the sensor in casing 41 can be identified motor 8 and be placed into position, and the shape of opening 42 determines the placement direction of motor 8.
Electric motor starting unit 5 comprises: an air cylinder support 51; One power interface cylinder 52, power interface cylinder 52 is anchored on air cylinder support 51; One power interface fixed head 53, power interface fixed head 53 is vertically anchored on the piston rod of power interface cylinder 52, at power interface fixed head 53 over against the external power source interface setting firmly on motor face, and the power connector on the corresponding motor 8 in the position of this external power source interface, by power interface cylinder 52, promote external power source interface and connect the power connector on motor 8, the process that patches of whole power supply adopts power interface cylinder 52 horizontal Promoting Forms, can prevent to greatest extent that like this connection of connector from affecting beating of rotor axis of electric 81.
One alarm is anchored on pick-up unit 1, when the jitter values of armature spindle, over the scope alarm device of setting, reports to the police, and the employing of alarm has improved the security of system.
Refer to Fig. 3, Optical Transmit Unit 3 comprises one or a plurality of gallium nitride (GaN) high brightness LED 31 and a scattering module 32 of arranging on utilizing emitted light optical axis successively and a collimator camera lens 33; The cooperation of scattering module 32 and collimator camera lens 33 realizes and obtains more uniform directional light.
Light receiving unit 2 comprises a telecentric optics assembly 22 and a high-speed linear imageing sensor 21(high-speed linear CCD who arranges on utilizing emitted light optical axis successively), high-speed linear imageing sensor 21 connects processing unit 9.It is undistorted that the employing of telecentric optics assembly 22 has realized imaging size, realized object dimensions and can measure, and significantly improved the precision of test; High-speed linear imageing sensor 21 has been realized the image collection of the armature spindle of beating at a high speed.
Light receiving unit 2 further comprise one utilizing emitted light optical axis and be located at telecentric optics assembly 22 and high-speed linear imageing sensor 21 between optical splitter 23, optical splitter 23 becomes a fixed angle with utilizing emitted light optical axis, on the refract light optical axis of optical splitter 23, be provided with an image sensor 24, image sensor 24 adopts CMOS image sensor and connects processing unit 9.
Refer to Fig. 2, Fig. 3, when detecting, first fix one and treat that measured motor 8, between an Optical Transmit Unit 3 and a light receiving unit 2, comprising:
By one, treat that measured motor 8 puts into a motor fixing seat 4, the sensor judgement motor 8 in motor fixing seat 4 exists;
The placement direction of measured motor 8 is treated in adjustment; Placement direction is according to the shape adjustments of opening 42;
After receiving a trigger pip, this trigger pip shifts out checkout equipment by operator's hand, triggers grating 7 and obtains; The piston rod of one holder cylinder 6 ejects, and holds out against motor 8 in holder 4, makes motor 8 interior reliable fixing in motor fixing seat 4.
Then, the piston rod of a power interface cylinder 52 ejects and Level Promoting one power interface fixed head 53;
Power interface on power interface fixed head 53 docks with the power interface of motor 8;
Optical Transmit Unit 3 is to light receiving unit 2 and rotor axis of electric 81 emitting parallel lights;
Directional light sends radiant light also successively by scattering module 32 and the rear acquisition of collimator camera lens 33 by one or a plurality of high-brightness GaN light emitting diode 31 of Optical Transmit Unit 3.
Light receiving unit 2 receives by the image of the directional light formation of rotor axis of electric 81;
This image is incident upon respectively at high-speed linear imageing sensor 21(high-speed linear CCD by an optical splitter 23 by a telecentric optics assembly 22 is rear) and image sensor 24(CMOS) on;
Afterwards, high-speed linear CCD and CMOS image sensor 24 transmit respectively one first electric signal and one second electric signal to control module;
By analog to digital converter 91, convert the first electric signal and the second electric signal to one first digital signal and one second digital signal;
Wherein the first digital signal is undertaken by central processing unit 93, carrying out numerical value processing again after digital edge detection process by a digital edge detection process device 92, obtains final detection data;
After being stored in to storer 94, these detection data send to display 95;
Meanwhile, the second digital signal be stored in to storer 94 and send to display 95;
When the jitter values of armature spindle is reported to the police over the scope alarm device of setting.
Below embodiment has been described in detail the present invention by reference to the accompanying drawings, and those skilled in the art can make many variations example to the present invention according to the above description.Thereby some details in embodiment should not form limitation of the invention, the present invention will be usingd scope that appended claims defines as protection scope of the present invention.
Claims (9)
1. a motor jitter detection apparatus, is characterized in that, comprising: be anchored on an Optical Transmit Unit, a motor fixing seat, a light receiving unit, an electric motor starting unit and a processing unit on described pick-up unit; The emission port of wherein said Optical Transmit Unit is corresponding with the receiving port of described light receiving unit, described motor fixing seat is fixed between the emission port of described Optical Transmit Unit and the receiving port of described light receiving unit, wherein, described motor fixing seat comprises a casing and a push pedal, described push pedal matches with a lateral opening of described casing, and being flexibly connected with described casing, and vertical being fastenedly connected of piston rod of described push pedal outside and a clamping cylinder; The end face of described casing forms an opening;
Described electric motor starting unit comprises:
One air cylinder support;
One power interface cylinder, described power interface cylinder is anchored on described air cylinder support;
One power interface fixed head, described power interface fixed head is vertically anchored on the piston rod of described power interface cylinder;
One external power source interface, described external power source interface is fixedly arranged on described power interface fixed head.。
2. motor jitter detection apparatus according to claim 1, is characterized in that, described Optical Transmit Unit comprises one or a plurality of light emitting diode and a scattering module of arranging on utilizing emitted light optical axis successively and a collimator camera lens;
Described light receiving unit comprises a telecentric optics assembly and a high-speed linear imageing sensor of arranging on described utilizing emitted light optical axis successively, and described high-speed linear imageing sensor connects described processing unit.
3. motor jitter detection apparatus according to claim 2, it is characterized in that, described light receiving unit further comprises one at described utilizing emitted light optical axis and is located at the optical splitter between described telecentric optics assembly and high-speed linear imageing sensor, with an image sensor that is positioned at described optical splitter refract light optical axis, described image sensor connects described processing unit.
4. according to the motor jitter detection apparatus described in claim 2 or 3, it is characterized in that, described processing unit comprises an analog to digital converter, a digital edge detection process device, a central processing unit, a storer and a display of communication connection successively, and described analog to digital converter is connected with described memory communication; Described analog to digital converter is for receiving the electric signal of described light receiving unit and described electric signal being converted to digital signal; Described storer is used for storing data; Described digital edge detection process device is for the digital edge detection process of data; Described central processing unit is for the function control of described processing unit and the numerical evaluation of data; Described display is used for showing detection data.
5. a motor glitch detection method, is characterized in that, comprises the steps:
Fix one and treat that measured motor is between an Optical Transmit Unit and a light receiving unit;
Described in startup, treat measured motor;
Described Optical Transmit Unit is launched a branch of directional light to the armature spindle of described motor, so by the image projection of the armature spindle of described motor to described light receiving unit;
Described light receiving unit receives the image of described rotor axis of electric to be measured and is to transfer to a processing unit after electric signal by described video conversion;
Electric signal show testing result described in described processing unit processes;
The described motor step to be measured of fixing further comprises:
By one, treat that measured motor puts into a motor fixing seat;
Described in adjustment, treat the placement direction of measured motor;
Receive after a trigger pip, the piston rod of a holder cylinder ejects, and holds out against described motor in holder;
Described starter motor step further comprises:
The piston rod of one power interface cylinder ejects and promotes a power interface fixed head;
Power interface on described power interface fixed head docks with the power interface of described motor;
Electric motor starting.
6. motor glitch detection method according to claim 5, is characterized in that, at described light receiving unit reception image information and in the step of processing unit transmission of electric signals:
Described image is incident upon on a high-speed linear imageing sensor after by a telecentric optics assembly, and described high-speed linear imageing sensor transmission one first electric signal is to processing unit.
7. motor glitch detection method according to claim 6, is characterized in that, electric signal show that testing result comprises step described in described processing unit processes:
By an analog to digital converter, convert described the first electric signal to one first digital signal;
By a digital edge detection process device, described the first digital signal is carried out by a central processing unit, carrying out numerical value processing again after digital edge detection process, obtain and detect data;
After being stored in to a storer, described detection data send to a display;
Display shows detection data.
8. motor glitch detection method according to claim 7, is characterized in that, described image is incident upon respectively on described high-speed linear imageing sensor and an image sensor by an optical splitter after by a telecentric optics assembly; Described image sensor transmission one second electric signal is to processing unit;
Electric signal show that testing result further comprises step described in described processing unit processes:
By described analog to digital converter, convert described the second electric signal to one second digital signal;
Described the second digital signal is stored in to described storer and sends to described display;
Display shows the image that rotor axis of electric is beated.
9. according to the motor glitch detection method described in claim 7 or 8, it is characterized in that, described directional light sends radiant light also successively by obtaining after a scattering module and a collimator camera lens by one or a plurality of light emitting diode of described Optical Transmit Unit.
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| JP6267154B2 (en) * | 2015-05-19 | 2018-01-24 | ファナック株式会社 | Shaft accuracy measuring device that measures the accuracy of the motor output shaft |
| CN106969710B (en) * | 2017-05-26 | 2023-05-19 | 四川瑞丰锻造有限公司 | Stable light splitter convenient to detect |
| CN108955592A (en) * | 2018-07-13 | 2018-12-07 | 成都添益天然气压缩机制造有限公司 | The detection device of piston rod jitter values |
| CN110988685B (en) * | 2019-12-13 | 2022-05-13 | 青岛丰光精密机械股份有限公司 | Device for motor shaft inspection |
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