CN104075847A - Portable dynamic balance tester and dynamic balance test method by using same - Google Patents
Portable dynamic balance tester and dynamic balance test method by using same Download PDFInfo
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- CN104075847A CN104075847A CN201310099610.7A CN201310099610A CN104075847A CN 104075847 A CN104075847 A CN 104075847A CN 201310099610 A CN201310099610 A CN 201310099610A CN 104075847 A CN104075847 A CN 104075847A
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Abstract
The invention discloses a portable dynamic balance tester, which comprises a portable computer, a measurement circuit unit, at least one accelerometer and at least one tachometer. The portable computer comprises a command input unit and a central processing unit electrically connected with the command input unit, wherein the command input unit is used for inputting control commands to the central processing unit, and the central processing unit is used for data processing; the measurement circuit unit is electrically connected with the central processing unit; the accelerometer is detachably connected with the measurement circuit unit and used for measuring vibration quantity of an object; and the tachometer is detachably connected with the measurement circuit unit and used for measuring rotating speed of a rotor. The invention also provides a dynamic balance test method by using the portable dynamic balance tester. The tester has the advantages of small volume, convenience in carrying, and stable performance. The method enables the test precision of the dynamic balance tester to be higher.
Description
Technical field
The present invention relates to dynamic balancing measurement technical field, particularly a kind of Portable Dynamic Balancing tester and use its dynamic balancing measurement method.
Background technology
Traditional dynamic balance measuring instrument be all to unassembled to equipment or the rotor removing from equipment measure, owing to all needing to carry out test in batches, tester is generally all comparatively large-scale, is fixed on a place, can often not move.But for not needing rotor batch testing or that be not easy to disassemble, this traditional equipment just cannot be tested and be difficult in other words test.In addition, traditional dynamic balance measuring instrument often all exists some problems in measuring accuracy and performance, makes it can not meet well user's needs.
In order can directly to test the rotor on equipment, need and want a kind of small volume, be convenient to the dynamic balance measuring instrument that moves and carry badly, but in smaller volume, also need its measuring accuracy and performance to improve, meet the user demand of user Geng Gao.
Summary of the invention
Object of the present invention is exactly for the problems referred to above, provide a kind of can volume little, be easy to carry, the Portable Dynamic Balancing tester of stable performance, a kind of dynamic balancing measurement method of using this Portable Dynamic Balancing tester is also provided in addition, and the method makes the measuring accuracy of this Portable Dynamic Balancing tester higher.
To achieve these goals, the invention provides following technical scheme: Portable Dynamic Balancing tester, it comprises:
Portable computer, it comprises command input unit and CPU (central processing unit), and this command input unit is electrically connected to this CPU (central processing unit), and for to this CPU (central processing unit) input of control commands, this CPU (central processing unit) is for controlling each parts;
Metering circuit unit, it is electrically connected to above-mentioned CPU (central processing unit);
At least one acceleration transducer, itself and above-mentioned metering circuit unit removably connect, for the vibratory output of measurement target thing;
At least one velocity gauge, itself and above-mentioned metering circuit unit removably connect, for the rotor speed of measurement target thing.
Further, above-mentioned command input unit is an input keyboard, and above-mentioned portable computer also comprises display unit, and it is electrically connected to above-mentioned CPU (central processing unit), for showing the result of this CPU (central processing unit).
Alternatively, above-mentioned command input unit is an interactive interface, and it is also for showing the result of above-mentioned CPU (central processing unit).
Further, above-mentioned Portable Dynamic Balancing tester also comprises timing unit, and it is electrically connected to above-mentioned velocity gauge, for the rotation time to rotor, measures.
Further, above-mentioned acceleration transducer removably connects by connection and above-mentioned metering circuit unit, and this velocity gauge removably connects by connection and metering circuit unit.
Again further, above-mentioned connection by thunder not head be electrically connected to above-mentioned metering circuit unit.
Further, the pin number of the above-mentioned Lei Motou for acceleration transducer is different from the pin number for the Lei Motou of velocity gauge.
Again further, above-mentioned acceleration transducer comprises the strong magnets for contact target thing, and this strong magnets and above-mentioned connection removably connect; Above-mentioned velocity gauge comprises the infrared inductor for responding near object, and this infrared inductor and above-mentioned connection removably connect.
Further, above-mentioned being detachably connected as is spirally connected and/or clamping.
The dynamic balancing measurement method of using Portable Dynamic Balancing tester, it comprises the following steps:
1) in degree of will speed up inductor contact target thing with its rotor with respect to not kinetoplast on, the zero-bit near rotor by velocity gauge simultaneously;
2) start object, rotor starts to rotate, and it is the centrifugal force of rotor that acceleration induction device records the vibratory output of rotor in kinetoplast not, and velocity gauge records the rotating speed of rotor by induction;
3) acceleration induction device and velocity gauge are sent to metering circuit unit by centrifugal force data and rotary speed data respectively, and metering circuit cell translation becomes corresponding electric signal to input to CPU (central processing unit);
4) CPU (central processing unit) is calculated the unbalance mass, of rotor and non-equilibrium site by set program according to the centrifugal force data and the rotary speed data that record again.
Above-mentioned set program comprises the formula that calculates unbalance mass, and the method for calculating eccentric angle; The formula of described calculating unbalance mass, comprises: 1) F=mr ω
2=Me ω
2, 2) and mr=Me, 3) G=e * ω, wherein, F is centrifugal force, m is unbalance mass,, the rotor radius that r is object, the rotor speed that ω is object, the rotor deadweight that M is object, e is eccentric throw, G is balance level; The method of described calculating eccentric angle comprises: the rotor speed of the object recording is converted to and rotated the needed time of every circle by central processing unit, then change into every needed time once of rotation, then with the time of rotor actual rotation, divided by every once needed time of described rotation, obtain the rotational angle of rotor, finally according to rotational angle, by the zero-bit of rotor, determine and occur unbalanced position again.
Adopt the beneficial effect of above technical scheme to be:
1) Portable Dynamic Balancing tester of the present invention has comprised portable computer, metering circuit
Plate, and at least one acceleration transducer removably connecting with this metering circuit unit and at least one velocity gauge, from above-mentioned technical characterictic, can see, for the acceleration transducer of measuring, be all connected with metering circuit unit disassembling with velocity gauge, after pulling down, be convenient to take in, volume is little, can put into the objects such as chest together with metering circuit unit with portable computer, being convenient to user is carried into Anywhere, this portable computer also comprises command input unit and CPU (central processing unit), utilize acceleration transducer directly to contact with velocity gauge or near object to the vibratory output of object rotor, be that centrifugal force and rotating speed are measured, then by metering circuit cell translation, become electric signal and transfer to calculating and the processing that CPU (central processing unit) is carried out data, can see, Portable Dynamic Balancing tester of the present invention obtain above-mentioned portable in the same stability measured of guaranteeing also,
2) dynamic balancing measurement method of the present invention has been used the set algorithm for dynamic balancing measurement and method, and the formula that calculates unbalance mass, comprises: 1) F=mr ω
2=Me ω
2, 2) and mr=Me, 3) G=e * ω, wherein, F is centrifugal force, m is unbalance mass,, the rotor radius that r is object, the rotor speed that ω is object, the rotor deadweight that M is object, e is eccentric throw, G is balance level; The method of calculating eccentric angle comprises: the rotor speed of the object recording is converted to and rotated the needed time of every circle by central processing unit, then change into every needed time once of rotation, then with the time of rotor actual rotation, divided by every once needed time of described rotation, obtain the rotational angle of rotor, finally according to rotational angle, by the zero-bit of rotor, determine and occur unbalanced position again, compared with prior art, its dynamic balancing measurement precision is higher for method of the present invention.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of Portable Dynamic Balancing tester of the present invention in embodiment 1.
Fig. 2 is the structured flowchart of Portable Dynamic Balancing tester of the present invention in embodiment 2.
Embodiment
Below in conjunction with accompanying drawing, describe the preferred embodiment of the present invention in detail.
Embodiment 1
As shown in Figure 1, Portable Dynamic Balancing tester in the present embodiment comprises: portable computer, this portable computer comprises command input unit and CPU (central processing unit), this command input unit is electrically connected to this CPU (central processing unit), be used for to this CPU (central processing unit) input of control commands, as orders such as starting, stop, this CPU (central processing unit) is for each parts are controlled, and this portable computer also should comprise the necessary parts such as shell, power supply; Metering circuit unit, it is electrically connected to CPU (central processing unit), and metering circuit unit can be arranged at outside and also can be integrated in portable computer; Two acceleration transducers, itself and metering circuit unit removably connect, for the vibratory output of measurement target thing, to obtain centrifugal force; A velocity gauge, its same and metering circuit unit removably connects, for the rotor speed of measurement target thing.Acceleration transducer should be to be connected to carry out the input of measurement data with the data access mouth of metering circuit unit respectively with velocity gauge, their quantity should be determined according to the quantity of object and size, as being one, the quantity of object needs to be equipped with at least one velocity gauge, by that analogy, as the thinner thickness of object, only need to be equipped with an acceleration transducer, as thicker, need to be equipped with at least two acceleration transducers, the both ends of the surface of object rotor are measured respectively.
Above-mentioned command input unit is an input keyboard, by the operation of keyboard, carry out the input of order, in addition, in the present embodiment, this portable computer also comprises display unit, it is electrically connected to CPU (central processing unit), for showing the result of CPU (central processing unit), also comprises the demonstration of processing procedure.
Above-mentioned Portable Dynamic Balancing tester also comprises timing unit, and it is electrically connected to velocity gauge, for the rotation time to rotor, measures.Timing unit is that the startup by velocity gauge starts simultaneously and self starts timing, and it is synchronoused working with velocity gauge, and timing unit can be arranged at outside and also can be integrated in portable computer.
In the present embodiment, above-mentioned acceleration transducer specifically removably connects by connection and metering circuit unit, and velocity gauge also removably connects by connection and metering circuit unit.
And these connections be by thunder not head be electrically connected to metering circuit unit.The end of connection is accessed on Lei Motou, then by Lei Motou, is linked on the data access mouth of metering circuit unit.Lei Motou can be so that the transmission of measurement data be more rapid and accurate.
In addition, for the pin number of the Lei Motou of acceleration transducer, be still different from for the pin number of the Lei Motou of velocity gauge, the object of this design is also in order to play the effect of a fool proof, can prevent that the equipment that operating personnel causes because of wrong plug line from makeing mistakes.Certainly for different pin numbers, the data access mouth on metering circuit unit is also to carry out the outfit of corresponding pin hole.
Above-mentioned acceleration transducer comprises the strong magnets for contact target thing, and this strong magnets and connection removably connect, and connected mode can be for being spirally connected or clamping, be convenient to and connection between dismounting fast.
Velocity gauge comprises the infrared inductor for responding near object, and this infrared inductor removably connects with above-mentioned connection, and connected mode equally can be for being spirally connected or clamping, be convenient to equally and connection between dismantle fast.
In the present embodiment, use the dynamic balancing measurement method of above-mentioned Portable Dynamic Balancing tester to comprise the following steps:
1) in degree of will speed up inductor contact target thing with its rotor with respect to not kinetoplast on, the zero-bit near rotor by velocity gauge simultaneously;
2) start object, rotor starts to rotate, and it is the centrifugal force of rotor that acceleration induction device records the vibratory output of rotor in kinetoplast not, and velocity gauge records the rotating speed of rotor by induction;
3) acceleration induction device and velocity gauge are sent to metering circuit unit by centrifugal force data and rotary speed data respectively, and metering circuit cell translation becomes corresponding electric signal to input to CPU (central processing unit);
4) CPU (central processing unit) is calculated the unbalance mass, of rotor and non-equilibrium site by set program according to the centrifugal force data and the rotary speed data that record again.
Above-mentioned set program comprises the formula that calculates unbalance mass, and the method for calculating eccentric angle; The formula of described calculating unbalance mass, comprises: 1) F=mr ω
2=Me ω
2, 2) and mr=Me, 3) G=e * ω, wherein, F is centrifugal force, m is unbalance mass,, the rotor radius that r is object, the rotor speed that ω is object, the rotor deadweight that M is object, e is eccentric throw, G is balance level; The method of described calculating eccentric angle comprises: the rotor speed of the object recording is converted to and rotated the needed time of every circle by central processing unit, then change into every needed time once of rotation, then with the time of rotor actual rotation, divided by every once needed time of described rotation, obtain the rotational angle of rotor, finally according to rotational angle, by the zero-bit of rotor, determine and occur unbalanced position again.
Embodiment 2
Other are identical with the content described in embodiment 1, and difference is: as shown in Figure 2, above-mentioned command input unit is an interactive interface, and it is also for showing the result of CPU (central processing unit).Without command input unit is set, interactive interface can complete order input and show two kinds of functions.
Introduce the course of work of the present invention below:
In degree of will speed up inductor contact target thing with its rotor with respect to not kinetoplast on, the zero-bit near rotor by velocity gauge simultaneously; Then, start object, rotor starts to rotate, and it is the centrifugal force of rotor that acceleration induction device records the vibratory output of rotor in kinetoplast not, and velocity gauge records the rotating speed of rotor by induction; Then, acceleration induction device and velocity gauge are sent to metering circuit unit by centrifugal force data and rotary speed data respectively, and metering circuit cell translation becomes corresponding electric signal to input to CPU (central processing unit); Finally, CPU (central processing unit) is calculated the unbalance mass, of rotor and non-equilibrium site by set program according to the centrifugal force data and the rotary speed data that record again.
The obtained beneficial effect of above-described embodiment is:
1) Portable Dynamic Balancing tester of the present invention has comprised portable computer, metering circuit
Plate, and at least one acceleration transducer removably connecting with this metering circuit unit and at least one velocity gauge, from above-mentioned technical characterictic, can see, for the acceleration transducer of measuring, be all connected with metering circuit unit disassembling with velocity gauge, after pulling down, be convenient to take in, volume is little, can put into the objects such as chest together with metering circuit unit with portable computer, being convenient to user is carried into Anywhere, this portable computer also comprises command input unit and CPU (central processing unit), utilize acceleration transducer directly to contact with velocity gauge or near object to the vibratory output of object rotor, be that centrifugal force and rotating speed are measured, then by metering circuit cell translation, become electric signal and transfer to calculating and the processing that CPU (central processing unit) is carried out data, can see, Portable Dynamic Balancing tester of the present invention obtain above-mentioned portable in the same stability measured of guaranteeing also,
2) dynamic balancing measurement method of the present invention has been used the set algorithm for dynamic balancing measurement and method, and the formula that calculates unbalance mass, comprises: 1) F=mr ω
2=Me ω
2, 2) and mr=Me, 3) G=e * ω, wherein, F is centrifugal force, m is unbalance mass,, the rotor radius that r is object, the rotor speed that ω is object, the rotor deadweight that M is object, e is eccentric throw, G is balance level; The method of calculating eccentric angle comprises: the rotor speed of the object recording is converted to and rotated the needed time of every circle by central processing unit, then change into every needed time once of rotation, then with the time of rotor actual rotation, divided by every once needed time of described rotation, obtain the rotational angle of rotor, finally according to rotational angle, by the zero-bit of rotor, determine and occur unbalanced position again, compared with prior art, its dynamic balancing measurement precision is higher for method of the present invention.
The present invention other NM contents are all can be learnt in prior art, does not therefore repeat them here.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and this enters, and these all belong to protection scope of the present invention.
Claims (10)
1. Portable Dynamic Balancing tester, is characterized in that: comprising:
Portable computer, it comprises command input unit and CPU (central processing unit), described order input
Unit is electrically connected to described CPU (central processing unit), and for to described CPU (central processing unit) input of control commands, described CPU (central processing unit) is for controlling each parts;
Metering circuit unit, it is electrically connected to described CPU (central processing unit);
At least one acceleration transducer, itself and described metering circuit unit removably connect, for the vibratory output of measurement target thing;
At least one velocity gauge, itself and described metering circuit unit removably connect, for the rotor speed of measurement target thing.
2. Portable Dynamic Balancing tester according to claim 1, it is characterized in that: described command input unit is an input keyboard, described portable computer also comprises display unit, and it is electrically connected to described CPU (central processing unit), for showing the result of described CPU (central processing unit).
3. Portable Dynamic Balancing tester according to claim 1, is characterized in that: described command input unit is an interactive interface, and it is also for showing the result of described CPU (central processing unit).
4. Portable Dynamic Balancing tester according to claim 1, is characterized in that: also comprise timing unit, it is electrically connected to described velocity gauge, for the rotation time to rotor, measures.
5. Portable Dynamic Balancing tester according to claim 1, is characterized in that: described acceleration transducer removably connects by connection and metering circuit unit, and described velocity gauge removably connects by connection and metering circuit unit.
6. Portable Dynamic Balancing tester according to claim 5, is characterized in that: described connection by thunder not head be electrically connected to described metering circuit unit.
7. Portable Dynamic Balancing tester according to claim 6, is characterized in that: for the described thunder of acceleration transducer not the pin number of head be different from for the described thunder of the velocity gauge pin number of head not.
8. Portable Dynamic Balancing tester according to claim 5, is characterized in that: described acceleration transducer comprises the strong magnets for contact target thing, and described strong magnets and described connection removably connect; Described velocity gauge comprises the infrared inductor for responding near object, and described infrared inductor and described connection removably connect.
9. Portable Dynamic Balancing tester according to claim 8, is characterized in that: described in be detachably connected as and be spirally connected and/or clamping.
10. right to use requires the dynamic balancing measurement method of the arbitrary described Portable Dynamic Balancing tester of 1-9, it is characterized in that: comprise the following steps:
1) in degree of will speed up inductor contact target thing with its rotor with respect to not kinetoplast on, the zero-bit near rotor by velocity gauge simultaneously;
2) start object, rotor starts to rotate, and it is the centrifugal force of rotor that acceleration induction device records the vibratory output of rotor in kinetoplast not, and velocity gauge records the rotating speed of rotor by induction;
3) acceleration induction device and velocity gauge are sent to metering circuit unit by centrifugal force data and rotary speed data respectively, and metering circuit cell translation becomes corresponding electric signal to input to CPU (central processing unit);
4) CPU (central processing unit) is calculated the unbalance mass, of rotor and non-equilibrium site by set program according to the centrifugal force data and the rotary speed data that record again;
Described set program comprises the formula that calculates unbalance mass, and the method for calculating eccentric angle; The formula of described calculating unbalance mass, comprises: 1) F=mr ω
2=Me ω
2, 2) and mr=Me, 3) G=e * ω, wherein, F is centrifugal force, m is unbalance mass,, the rotor radius that r is object, the rotor speed that ω is object, the rotor deadweight that M is object, e is eccentric throw, G is balance level; The method of described calculating eccentric angle comprises: the rotor speed of the object recording is converted to and rotated the needed time of every circle by central processing unit, then change into every needed time once of rotation, then with the time of rotor actual rotation, divided by every once needed time of described rotation, obtain the rotational angle of rotor, finally according to rotational angle, by the zero-bit of rotor, determine and occur unbalanced position again.
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| CN201310099610.7A CN104075847B (en) | 2013-03-26 | 2013-03-26 | Portable dynamic balance tester and dynamic balance test method by using same |
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Cited By (3)
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| CN105716841A (en) * | 2014-12-05 | 2016-06-29 | 常州光洋轴承股份有限公司 | Balance determination and repairing method for wheel bearing unit |
| CN110646141A (en) * | 2019-09-24 | 2020-01-03 | 华能(大连)热电有限责任公司 | Office software-based rotary machine on-site dynamic balance calculation and adjustment method |
| CN112082695A (en) * | 2020-09-04 | 2020-12-15 | 江苏铍迪埃坶节能科技有限公司 | Motor field dynamic balance correction and vibration detection method |
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Cited By (6)
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| CN105716841A (en) * | 2014-12-05 | 2016-06-29 | 常州光洋轴承股份有限公司 | Balance determination and repairing method for wheel bearing unit |
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| CN110646141B (en) * | 2019-09-24 | 2021-03-02 | 华能(大连)热电有限责任公司 | Office software-based rotary machine on-site dynamic balance calculation and adjustment method |
| CN112082695A (en) * | 2020-09-04 | 2020-12-15 | 江苏铍迪埃坶节能科技有限公司 | Motor field dynamic balance correction and vibration detection method |
| CN112082695B (en) * | 2020-09-04 | 2022-08-23 | 江苏铍迪埃坶节能科技有限公司 | Motor field dynamic balance correction and vibration detection method |
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Effective date of registration: 20190918 Address after: 223800 Room 321, 03/F, Block B, 901 Development Avenue, Suqian Economic and Technological Development Zone, Jiangsu Province - GY0006 Patentee after: Suqian poly Technology Co., Ltd. Address before: Suzhou City, Jiangsu province 215000 Suzhou Industrial Park Yang Ching No. 37 Patentee before: SUZHOU INDUSTRIAL PARK JUMBO PRECISION DEVICE CO., LTD. |
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Effective date of registration: 20200924 Address after: Room 111-03, building 1, No. 10, Jinshan Road, high tech Zone, Suzhou City, Jiangsu Province Patentee after: Suzhou Jubo precision equipment Co., Ltd Address before: 223800 Room 321, 03/F, Block B, 901 Development Avenue, Suqian Economic and Technological Development Zone, Jiangsu Province - GY0006 Patentee before: SUQIAN JUBO TECHNOLOGY Co.,Ltd. |