Dynamic balance analysis device
An analysis device and balancing technology, applied in electromechanical devices, centering/balancing rotors, electric components, etc., can solve problems such as high cost and inconvenient operation, and achieve fast working speed, simple structure, and high real-time performance
Active Publication Date: 2016-08-24
KEDE NUMERICAL CONTROL CO LTD
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Problems solved by technology
The on-site dynamic balance detection equipment provided by some foreign manufacturers generally adopts the method of acceleration sensor and speed sensor, which is not only costly, but also inconvenient to operate in some occasions, so one is developed according to the characteristics of actual mechanical equipment. It is very necessary to have a detection system for real-time dynamic balance monitoring that is suitable for application in numerical control systems
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[0027] Such as figure 1 The dynamic balance analysis device shown includes a front-end signal processing unit, which is mainly used to collect and convert the vibration signal generated by the unbalanced rotation of the motor (the external signal represents the vibration generated by the unbalanced rotation, including the frequency, amplitude and phase of the vibration and other information), carry out AD sampling and other operations to adjust the signal input range, convert the analog quantity of the vibration signal into a digital quantity, and ensure sufficient bandwidth for FFT signal processing.
[0028] FIFO is mainly used as a buffer unit for external input data (that is, to buffer the vibration signal caused by the unbalanced rotation of the external input motor); the data collected by the external high-speed AD is temporarily stored in the FIFO, and the data is sent to the dual In the port RAM storage unit, it is used for the calculation of the FFT processor; the con...
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The invention discloses a dynamic balance analysis device. A vibration signal is generated by externally input unbalanced rotation of a motor, and then processed by a front signal processing unit so as to be sent to an FIFO (first in first out) connected with the front signal processing unit; an FFT (fast fourier transform) processor is connected with the FIFO, so that the processed intermediate data and initial data are stored in a double-port RAM (random access memory) storage unit connected with the FFT processor; a data processing unit is connected with the double-port RAM storage unit, so that output compensation mass and relative position are acquired by calculation and then are sent to a display unit connected with the data processing unit for displaying; a control unit is respectively connected with the front signal processing unit, the FFT processor, the double-port RAM storage unit and the data processing unit for reading address, writing address, enabling signals and performing startup control for each relevant module. The device uses the FFT real-time analysis technology to greatly improve the system solution and analysis speed, and is suitable for extensively popularizing in application occasions such as dynamic balance detection, vibration analysis and compensation.
Description
technical field [0001] The invention relates to a dynamic balance analysis device, in particular to a portable dynamic balance detection device for testing and analyzing vibrations of various main shafts and large turntables. Background technique [0002] Commonly used machinery contains a large number of parts for rotating motion, such as various transmission shafts, main shafts, turntables and motors, collectively referred to as gyratory. Ideally, when the revolving body is rotating and not rotating, the pressure on the bearing is the same, and such a revolving body is a balanced revolving body. However, due to various factors such as uneven material or blank defects, errors in processing and assembly, and even asymmetrical geometric shapes in design, the various rotating bodies in the project make the rotating body rotate. The centrifugal inertial force generated by a tiny particle cannot cancel each other out. The centrifugal inertial force acts on the machine and its f...
Claims
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IPC IPC(8): H02K15/00H02K15/16
Inventor 张赞秋郝天阳于德海陈虎郑君民
Owner KEDE NUMERICAL CONTROL CO LTD