CN202058148U

CN202058148U - Axis track analyzer

Info

Publication number: CN202058148U
Application number: CN2011201195526U
Authority: CN
Inventors: 尹爱军; 王见; 雷才国; 刘富安; 郭平; 张遵国; 王军; 王勇
Original assignee: Chongqing University
Current assignee: Chongqing University
Priority date: 2011-04-21
Filing date: 2011-04-21
Publication date: 2011-11-30
Anticipated expiration: 2021-04-21

Abstract

The utility model discloses an axis track analyzer, which comprises a sensor group, a data acquisition module, an embedded computer mainframe and a displayer, wherein the sensor group collects external signals, converts the external signals into electric signals which are output to the data acquisition module. The data acquisition module converts the received signals into digital value which is output to the embedded computer mainframe. The embedded computer mainframe analyzes, processes and preserves the received data, and then outputs results to the displayer for display. The axis track analyzer is characterized in that the sensor group is composed of an X axial displacement sensor and a Y axial displacement sensor which convert X axial displacement signals and Y axial displacement signals into electric signals respectively, and then the electric signals are output to the data acquisition module. The axis track analyzer takes samples of an axis track of a spindle, analyzes the signals through the embedded computer mainframe to obtain axis track characteristics of a rotary machine, and diagnoses the running state and fault type of the rotary machine.

Description

Axle core trajectory analysis instrument

Technical field

The utility model relates to analytical instrument, is specifically related to a core trajectory analysis instrument.

Background technology

Orbit of shaft center can reflect the motion conditions of rotating shaft intuitively, also comprised a large amount of failure messages, traditional axle core trajectory analysis instrument generally adopts multi-purpose computer, function singleness, very flexible, tested object is done dynamic test need connect a plurality of instruments and debugging, debug difficulties, complicated operation, and multi-purpose computer requires high to working environment, can not normally operation under more abominable industrial environment.Owing to the opening of common computer operations system, make and the system maintenance difficulty because of to the maloperation of system file, the mistake setting of system, viral influence etc., cause system crash easily in addition.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of core trajectory analysis instrument.

In order to address the above problem, according to the technical solution of the utility model, axle core trajectory analysis instrument comprises sensor groups, data acquisition module, embedded computer main frame and display, wherein:

Sensor groups is gathered external signal, converts external signal to electric signal, outputs to data acquisition module;

Data acquisition module is a digital quantity with the conversion of signals of receiving, outputs to the embedded computer main frame;

The embedded computer main frame is analyzed, is handled and preserve the data that receive, and then the result is outputed to display and shows;

It is characterized in that: sensor groups is made of to displacement transducer X axis displacement transducer and Y-axis, and X axis displacement transducer and Y-axis convert X axis displacement signal and Y-axis to electric signal to displacement signal respectively to displacement transducer, output to data acquisition module.

Axle core trajectory analysis instrument is sampled to the orbit of shaft center of tested main shaft to displacement transducer by X axis displacement transducer and Y-axis, by the embedded computer main frame signal is further analyzed to obtain the orbit of shaft center characteristic of rotating machinery, running status and fault type according to monitoring of orbit of shaft center characteristic and diagnosis rotating machinery, can be suitable for various types of rotating machineries and do the orbit of shaft center test, and present the result with patterned way intuitively by display, and detect data and can in hard disk, do long-time the preservation, also can dumping to imprints CDs does nonvolatil preservation, make this core trajectory analysis instrument have the off-line data analytic function, the data file in the hard disk that off-line data was analyzed when analyzing, directly call and analyze, need not sample conversion again.

Preferred version according to described axle core trajectory analysis instrument described in the utility model, described data acquisition module comprises pci bus data collecting card or USB interface data acquisition unit, pci bus data collecting card or USB interface data acquisition unit reception X axis displacement transducer and Y-axis are to the electric signal of displacement transducer output, and be digital quantity with the electrical signal conversion of receiving, output to the embedded computer main frame; When adopting the pci bus data collecting card, by pci bus and embedded computer main-machine communication, when adopting the USB interface data acquisition unit, by USB interface and embedded computer main-machine communication, function corresponding software is installed in the embedded computer main frame, a core trajectory analysis instrument can onlinely be tested with off-line.

The beneficial effect of axle core trajectory analysis instrument described in the utility model is: the utility model is simple in structure, the reliability height, described axle core trajectory analysis instrument is sampled to the orbit of shaft center of tested main shaft to displacement transducer by X axis displacement transducer and Y-axis, by the embedded computer main frame signal is further analyzed to obtain the orbit of shaft center characteristic of rotating machinery, running status and fault type according to monitoring of orbit of shaft center characteristic and diagnosis rotating machinery, can do orbit of shaft center test to various types of rotating machineries, and present the result with patterned way intuitively by display; And detect data and can in hard disk, do long-time the preservation, have the off-line data analytic function, great economic benefit and social benefit are arranged.

Description of drawings

Fig. 1 is the schematic block circuit diagram of axle core trajectory analysis instrument described in the utility model.

Fig. 2 is an installed software FB(flow block) in the embedded computer main frame 4 described in the utility model.

Embodiment

Referring to Fig. 1 and Fig. 2, axle core trajectory analysis instrument described in the utility model is made of sensor groups 1, data acquisition module 3, embedded computer main frame 4 and display 5, wherein:

Sensor groups 1 is gathered external signal, converts external signal to electric signal, outputs to data acquisition module 3;

Data acquisition module 3 is a digital quantity with the conversion of signals of receiving, outputs to embedded computer main frame 4;

4 pairs of data that receive of embedded computer main frame are analyzed, are handled and preserve, and then the result are outputed to display 5 and show;

Sensor groups 1 is made of to displacement transducer X axis displacement transducer and Y-axis, X axis displacement transducer and Y-axis are installed on the spindle carrier by anchor clamps to displacement transducer, X axis displacement transducer and Y-axis convert X axis displacement signal and Y-axis to electric signal to displacement signal respectively to displacement transducer, output to data acquisition module 3.

Software as shown in Figure 2 is installed in embedded computer main frame 4, wherein, the data analysis carried out of embedded computer main frame 4 comprises: signal filtering denoising, autocorrelation analysis, eigenvalue calculation, histogram analysis, spectrum analysis, power spectrumanalysis, cepstral analysis and orbit of shaft center type identification etc.

In specific embodiment, described data acquisition module 3 comprises pci bus data collecting card or USB interface data acquisition unit, pci bus data collecting card or USB interface data acquisition unit reception X axis displacement transducer and Y-axis are to the electric signal of displacement transducer output, and be digital quantity with the electrical signal conversion of receiving, output to embedded computer main frame 4.

Embedded computer main frame 4 adopts the technical grade mainboard, can adopt 1.1G CPU, 256 MB of memory, the 80G hard disk, display 5 can adopt the LCD LCDs, the PCI9114 data collecting card that the pci bus data collecting card can adopt Ling Hua company to produce is connected with embedded computer main frame 4 by the pci bus expansion slot; The USB interface data acquisition unit can adopt DTE3216 USB interface data acquisition unit, is connected with embedded computer main frame 4 by USB interface; For being convenient for carrying, data acquisition module 3, embedded computer main frame 4 and display 5 can be installed in the instrumentation cabinet, cabinet is stamped to form with aluminium alloy, and with industrial level power supply power supply, has guaranteed that also this core trajectory analysis instrument has the ability of shield electromagnetic interference and anti-vibration.

Installed software adopts the Componentized mode to design in this core trajectory analysis instrument, make software can break away from a hardware components independent operating of core trajectory analysis instrument, wherein software comprises Central Control Module, parameter setting module, signal display module, data acquisition module, data memory module, the data recording playback module, signal processing module, report printing and other subsidiary function modules etc.

The utility model adopts the modularization method for designing, simplified hardware configuration, use axle core trajectory analysis instrument described in the utility model, only need external sensor, be responsible for the signals collecting in early stage, do not have the debugging matching problem between each testing tool, operability is strengthened, easy to maintenance, cost reduces greatly; Software and hardware separation, convenient upgrading; Software can be used as stand-alone program and uses, and is used for the detection data readback and the analysis of will preserve; Cooperate abundant software package, can realize multiple analytic function.

Claims

1. axle core trajectory analysis instrument comprises sensor groups (1), data acquisition module (3), embedded computer main frame (4) and display (5), wherein:

Sensor groups (1) is gathered external signal, converts external signal to electric signal, outputs to data acquisition module (3);

Data acquisition module (3) is a digital quantity with the conversion of signals of receiving, outputs to embedded computer main frame (4);

Embedded computer main frame (4) is analyzed, is handled and preserve the data that receive, and then the result is outputed to display (5) and shows;

It is characterized in that: sensor groups (1) is made of to displacement transducer X axis displacement transducer and Y-axis, X axis displacement transducer and Y-axis convert X axis displacement signal and Y-axis to electric signal to displacement signal respectively to displacement transducer, output to data acquisition module (3).

2. axle core trajectory analysis instrument according to claim 1, it is characterized in that: described data acquisition module (3) comprises pci bus data collecting card or USB interface data acquisition unit, pci bus data collecting card or USB interface data acquisition unit reception X axis displacement transducer and Y-axis are to the electric signal of displacement transducer output, and be digital quantity with the electrical signal conversion of receiving, output to embedded computer main frame (4).